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-rw-r--r--libavcodec/Makefile5
-rw-r--r--libavcodec/h264.c2535
-rw-r--r--libavcodec/h264.h19
-rw-r--r--libavcodec/h264_picture.c200
-rw-r--r--libavcodec/h264_slice.c2384
5 files changed, 2627 insertions, 2516 deletions
diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index e069d1d765..1b5a04438a 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -196,8 +196,9 @@ OBJS-$(CONFIG_H263_ENCODER) += mpeg4videoenc.o mpeg4video.o \
h263.o ituh263enc.o flvenc.o
OBJS-$(CONFIG_H264_DECODER) += h264.o h264_cabac.o h264_cavlc.o \
h264_direct.o h264_loopfilter.o \
- h264_mb.o h264_ps.o h264_refs.o \
- h264_sei.o cabac.o
+ h264_mb.o h264_picture.o h264_ps.o \
+ h264_refs.o h264_sei.o h264_slice.o \
+ cabac.o
OBJS-$(CONFIG_HEVC_DECODER) += hevc.o hevc_mvs.o hevc_ps.o hevc_sei.o \
hevc_cabac.o hevc_refs.o hevcpred.o \
hevcdsp.o hevc_filter.o cabac.o
diff --git a/libavcodec/h264.c b/libavcodec/h264.c
index e039dbb8fc..9a96937381 100644
--- a/libavcodec/h264.c
+++ b/libavcodec/h264.c
@@ -50,139 +50,6 @@
const uint16_t ff_h264_mb_sizes[4] = { 256, 384, 512, 768 };
-static const uint8_t rem6[QP_MAX_NUM + 1] = {
- 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2,
- 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5,
- 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3,
-};
-
-static const uint8_t div6[QP_MAX_NUM + 1] = {
- 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 3, 3, 3,
- 3, 3, 3, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6,
- 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10,
-};
-
-static const uint8_t field_scan[16] = {
- 0 + 0 * 4, 0 + 1 * 4, 1 + 0 * 4, 0 + 2 * 4,
- 0 + 3 * 4, 1 + 1 * 4, 1 + 2 * 4, 1 + 3 * 4,
- 2 + 0 * 4, 2 + 1 * 4, 2 + 2 * 4, 2 + 3 * 4,
- 3 + 0 * 4, 3 + 1 * 4, 3 + 2 * 4, 3 + 3 * 4,
-};
-
-static const uint8_t field_scan8x8[64] = {
- 0 + 0 * 8, 0 + 1 * 8, 0 + 2 * 8, 1 + 0 * 8,
- 1 + 1 * 8, 0 + 3 * 8, 0 + 4 * 8, 1 + 2 * 8,
- 2 + 0 * 8, 1 + 3 * 8, 0 + 5 * 8, 0 + 6 * 8,
- 0 + 7 * 8, 1 + 4 * 8, 2 + 1 * 8, 3 + 0 * 8,
- 2 + 2 * 8, 1 + 5 * 8, 1 + 6 * 8, 1 + 7 * 8,
- 2 + 3 * 8, 3 + 1 * 8, 4 + 0 * 8, 3 + 2 * 8,
- 2 + 4 * 8, 2 + 5 * 8, 2 + 6 * 8, 2 + 7 * 8,
- 3 + 3 * 8, 4 + 1 * 8, 5 + 0 * 8, 4 + 2 * 8,
- 3 + 4 * 8, 3 + 5 * 8, 3 + 6 * 8, 3 + 7 * 8,
- 4 + 3 * 8, 5 + 1 * 8, 6 + 0 * 8, 5 + 2 * 8,
- 4 + 4 * 8, 4 + 5 * 8, 4 + 6 * 8, 4 + 7 * 8,
- 5 + 3 * 8, 6 + 1 * 8, 6 + 2 * 8, 5 + 4 * 8,
- 5 + 5 * 8, 5 + 6 * 8, 5 + 7 * 8, 6 + 3 * 8,
- 7 + 0 * 8, 7 + 1 * 8, 6 + 4 * 8, 6 + 5 * 8,
- 6 + 6 * 8, 6 + 7 * 8, 7 + 2 * 8, 7 + 3 * 8,
- 7 + 4 * 8, 7 + 5 * 8, 7 + 6 * 8, 7 + 7 * 8,
-};
-
-static const uint8_t field_scan8x8_cavlc[64] = {
- 0 + 0 * 8, 1 + 1 * 8, 2 + 0 * 8, 0 + 7 * 8,
- 2 + 2 * 8, 2 + 3 * 8, 2 + 4 * 8, 3 + 3 * 8,
- 3 + 4 * 8, 4 + 3 * 8, 4 + 4 * 8, 5 + 3 * 8,
- 5 + 5 * 8, 7 + 0 * 8, 6 + 6 * 8, 7 + 4 * 8,
- 0 + 1 * 8, 0 + 3 * 8, 1 + 3 * 8, 1 + 4 * 8,
- 1 + 5 * 8, 3 + 1 * 8, 2 + 5 * 8, 4 + 1 * 8,
- 3 + 5 * 8, 5 + 1 * 8, 4 + 5 * 8, 6 + 1 * 8,
- 5 + 6 * 8, 7 + 1 * 8, 6 + 7 * 8, 7 + 5 * 8,
- 0 + 2 * 8, 0 + 4 * 8, 0 + 5 * 8, 2 + 1 * 8,
- 1 + 6 * 8, 4 + 0 * 8, 2 + 6 * 8, 5 + 0 * 8,
- 3 + 6 * 8, 6 + 0 * 8, 4 + 6 * 8, 6 + 2 * 8,
- 5 + 7 * 8, 6 + 4 * 8, 7 + 2 * 8, 7 + 6 * 8,
- 1 + 0 * 8, 1 + 2 * 8, 0 + 6 * 8, 3 + 0 * 8,
- 1 + 7 * 8, 3 + 2 * 8, 2 + 7 * 8, 4 + 2 * 8,
- 3 + 7 * 8, 5 + 2 * 8, 4 + 7 * 8, 5 + 4 * 8,
- 6 + 3 * 8, 6 + 5 * 8, 7 + 3 * 8, 7 + 7 * 8,
-};
-
-// zigzag_scan8x8_cavlc[i] = zigzag_scan8x8[(i/4) + 16*(i%4)]
-static const uint8_t zigzag_scan8x8_cavlc[64] = {
- 0 + 0 * 8, 1 + 1 * 8, 1 + 2 * 8, 2 + 2 * 8,
- 4 + 1 * 8, 0 + 5 * 8, 3 + 3 * 8, 7 + 0 * 8,
- 3 + 4 * 8, 1 + 7 * 8, 5 + 3 * 8, 6 + 3 * 8,
- 2 + 7 * 8, 6 + 4 * 8, 5 + 6 * 8, 7 + 5 * 8,
- 1 + 0 * 8, 2 + 0 * 8, 0 + 3 * 8, 3 + 1 * 8,
- 3 + 2 * 8, 0 + 6 * 8, 4 + 2 * 8, 6 + 1 * 8,
- 2 + 5 * 8, 2 + 6 * 8, 6 + 2 * 8, 5 + 4 * 8,
- 3 + 7 * 8, 7 + 3 * 8, 4 + 7 * 8, 7 + 6 * 8,
- 0 + 1 * 8, 3 + 0 * 8, 0 + 4 * 8, 4 + 0 * 8,
- 2 + 3 * 8, 1 + 5 * 8, 5 + 1 * 8, 5 + 2 * 8,
- 1 + 6 * 8, 3 + 5 * 8, 7 + 1 * 8, 4 + 5 * 8,
- 4 + 6 * 8, 7 + 4 * 8, 5 + 7 * 8, 6 + 7 * 8,
- 0 + 2 * 8, 2 + 1 * 8, 1 + 3 * 8, 5 + 0 * 8,
- 1 + 4 * 8, 2 + 4 * 8, 6 + 0 * 8, 4 + 3 * 8,
- 0 + 7 * 8, 4 + 4 * 8, 7 + 2 * 8, 3 + 6 * 8,
- 5 + 5 * 8, 6 + 5 * 8, 6 + 6 * 8, 7 + 7 * 8,
-};
-
-static const uint8_t dequant4_coeff_init[6][3] = {
- { 10, 13, 16 },
- { 11, 14, 18 },
- { 13, 16, 20 },
- { 14, 18, 23 },
- { 16, 20, 25 },
- { 18, 23, 29 },
-};
-
-static const uint8_t dequant8_coeff_init_scan[16] = {
- 0, 3, 4, 3, 3, 1, 5, 1, 4, 5, 2, 5, 3, 1, 5, 1
-};
-
-static const uint8_t dequant8_coeff_init[6][6] = {
- { 20, 18, 32, 19, 25, 24 },
- { 22, 19, 35, 21, 28, 26 },
- { 26, 23, 42, 24, 33, 31 },
- { 28, 25, 45, 26, 35, 33 },
- { 32, 28, 51, 30, 40, 38 },
- { 36, 32, 58, 34, 46, 43 },
-};
-
-static const enum AVPixelFormat h264_hwaccel_pixfmt_list_420[] = {
-#if CONFIG_H264_DXVA2_HWACCEL
- AV_PIX_FMT_DXVA2_VLD,
-#endif
-#if CONFIG_H264_VAAPI_HWACCEL
- AV_PIX_FMT_VAAPI_VLD,
-#endif
-#if CONFIG_H264_VDA_HWACCEL
- AV_PIX_FMT_VDA_VLD,
-#endif
-#if CONFIG_H264_VDPAU_HWACCEL
- AV_PIX_FMT_VDPAU,
-#endif
- AV_PIX_FMT_YUV420P,
- AV_PIX_FMT_NONE
-};
-
-static const enum AVPixelFormat h264_hwaccel_pixfmt_list_jpeg_420[] = {
-#if CONFIG_H264_DXVA2_HWACCEL
- AV_PIX_FMT_DXVA2_VLD,
-#endif
-#if CONFIG_H264_VAAPI_HWACCEL
- AV_PIX_FMT_VAAPI_VLD,
-#endif
-#if CONFIG_H264_VDA_HWACCEL
- AV_PIX_FMT_VDA_VLD,
-#endif
-#if CONFIG_H264_VDPAU_HWACCEL
- AV_PIX_FMT_VDPAU,
-#endif
- AV_PIX_FMT_YUVJ420P,
- AV_PIX_FMT_NONE
-};
-
static void h264_er_decode_mb(void *opaque, int ref, int mv_dir, int mv_type,
int (*mv)[2][4][2],
int mb_x, int mb_y, int mb_intra, int mb_skipped)
@@ -253,231 +120,6 @@ void ff_h264_draw_horiz_band(H264Context *h, int y, int height)
}
}
-static void unref_picture(H264Context *h, H264Picture *pic)
-{
- int off = offsetof(H264Picture, tf) + sizeof(pic->tf);
- int i;
-
- if (!pic->f.buf[0])
- return;
-
- ff_thread_release_buffer(h->avctx, &pic->tf);
- av_buffer_unref(&pic->hwaccel_priv_buf);
-
- av_buffer_unref(&pic->qscale_table_buf);
- av_buffer_unref(&pic->mb_type_buf);
- for (i = 0; i < 2; i++) {
- av_buffer_unref(&pic->motion_val_buf[i]);
- av_buffer_unref(&pic->ref_index_buf[i]);
- }
-
- memset((uint8_t*)pic + off, 0, sizeof(*pic) - off);
-}
-
-static void release_unused_pictures(H264Context *h, int remove_current)
-{
- int i;
-
- /* release non reference frames */
- for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
- if (h->DPB[i].f.buf[0] && !h->DPB[i].reference &&
- (remove_current || &h->DPB[i] != h->cur_pic_ptr)) {
- unref_picture(h, &h->DPB[i]);
- }
- }
-}
-
-static int ref_picture(H264Context *h, H264Picture *dst, H264Picture *src)
-{
- int ret, i;
-
- av_assert0(!dst->f.buf[0]);
- av_assert0(src->f.buf[0]);
-
- src->tf.f = &src->f;
- dst->tf.f = &dst->f;
- ret = ff_thread_ref_frame(&dst->tf, &src->tf);
- if (ret < 0)
- goto fail;
-
- dst->qscale_table_buf = av_buffer_ref(src->qscale_table_buf);
- dst->mb_type_buf = av_buffer_ref(src->mb_type_buf);
- if (!dst->qscale_table_buf || !dst->mb_type_buf)
- goto fail;
- dst->qscale_table = src->qscale_table;
- dst->mb_type = src->mb_type;
-
- for (i = 0; i < 2; i++) {
- dst->motion_val_buf[i] = av_buffer_ref(src->motion_val_buf[i]);
- dst->ref_index_buf[i] = av_buffer_ref(src->ref_index_buf[i]);
- if (!dst->motion_val_buf[i] || !dst->ref_index_buf[i])
- goto fail;
- dst->motion_val[i] = src->motion_val[i];
- dst->ref_index[i] = src->ref_index[i];
- }
-
- if (src->hwaccel_picture_private) {
- dst->hwaccel_priv_buf = av_buffer_ref(src->hwaccel_priv_buf);
- if (!dst->hwaccel_priv_buf)
- goto fail;
- dst->hwaccel_picture_private = dst->hwaccel_priv_buf->data;
- }
-
- for (i = 0; i < 2; i++)
- dst->field_poc[i] = src->field_poc[i];
-
- memcpy(dst->ref_poc, src->ref_poc, sizeof(src->ref_poc));
- memcpy(dst->ref_count, src->ref_count, sizeof(src->ref_count));
-
- dst->poc = src->poc;
- dst->frame_num = src->frame_num;
- dst->mmco_reset = src->mmco_reset;
- dst->pic_id = src->pic_id;
- dst->long_ref = src->long_ref;
- dst->mbaff = src->mbaff;
- dst->field_picture = src->field_picture;
- dst->needs_realloc = src->needs_realloc;
- dst->reference = src->reference;
- dst->recovered = src->recovered;
-
- return 0;
-fail:
- unref_picture(h, dst);
- return ret;
-}
-
-static int alloc_scratch_buffers(H264Context *h, int linesize)
-{
- int alloc_size = FFALIGN(FFABS(linesize) + 32, 32);
-
- if (h->bipred_scratchpad)
- return 0;
-
- h->bipred_scratchpad = av_malloc(16 * 6 * alloc_size);
- // edge emu needs blocksize + filter length - 1
- // (= 21x21 for h264)
- h->edge_emu_buffer = av_mallocz(alloc_size * 2 * 21);
-
- if (!h->bipred_scratchpad || !h->edge_emu_buffer) {
- av_freep(&h->bipred_scratchpad);
- av_freep(&h->edge_emu_buffer);
- return AVERROR(ENOMEM);
- }
-
- return 0;
-}
-
-static int init_table_pools(H264Context *h)
-{
- const int big_mb_num = h->mb_stride * (h->mb_height + 1) + 1;
- const int mb_array_size = h->mb_stride * h->mb_height;
- const int b4_stride = h->mb_width * 4 + 1;
- const int b4_array_size = b4_stride * h->mb_height * 4;
-
- h->qscale_table_pool = av_buffer_pool_init(big_mb_num + h->mb_stride,
- av_buffer_allocz);
- h->mb_type_pool = av_buffer_pool_init((big_mb_num + h->mb_stride) *
- sizeof(uint32_t), av_buffer_allocz);
- h->motion_val_pool = av_buffer_pool_init(2 * (b4_array_size + 4) *
- sizeof(int16_t), av_buffer_allocz);
- h->ref_index_pool = av_buffer_pool_init(4 * mb_array_size, av_buffer_allocz);
-
- if (!h->qscale_table_pool || !h->mb_type_pool || !h->motion_val_pool ||
- !h->ref_index_pool) {
- av_buffer_pool_uninit(&h->qscale_table_pool);
- av_buffer_pool_uninit(&h->mb_type_pool);
- av_buffer_pool_uninit(&h->motion_val_pool);
- av_buffer_pool_uninit(&h->ref_index_pool);
- return AVERROR(ENOMEM);
- }
-
- return 0;
-}
-
-static int alloc_picture(H264Context *h, H264Picture *pic)
-{
- int i, ret = 0;
-
- av_assert0(!pic->f.data[0]);
-
- pic->tf.f = &pic->f;
- ret = ff_thread_get_buffer(h->avctx, &pic->tf, pic->reference ?
- AV_GET_BUFFER_FLAG_REF : 0);
- if (ret < 0)
- goto fail;
-
- h->linesize = pic->f.linesize[0];
- h->uvlinesize = pic->f.linesize[1];
-
- if (h->avctx->hwaccel) {
- const AVHWAccel *hwaccel = h->avctx->hwaccel;
- av_assert0(!pic->hwaccel_picture_private);
- if (hwaccel->priv_data_size) {
- pic->hwaccel_priv_buf = av_buffer_allocz(hwaccel->priv_data_size);
- if (!pic->hwaccel_priv_buf)
- return AVERROR(ENOMEM);
- pic->hwaccel_picture_private = pic->hwaccel_priv_buf->data;
- }
- }
-
- if (!h->qscale_table_pool) {
- ret = init_table_pools(h);
- if (ret < 0)
- goto fail;
- }
-
- pic->qscale_table_buf = av_buffer_pool_get(h->qscale_table_pool);
- pic->mb_type_buf = av_buffer_pool_get(h->mb_type_pool);
- if (!pic->qscale_table_buf || !pic->mb_type_buf)
- goto fail;
-
- pic->mb_type = (uint32_t*)pic->mb_type_buf->data + 2 * h->mb_stride + 1;
- pic->qscale_table = pic->qscale_table_buf->data + 2 * h->mb_stride + 1;
-
- for (i = 0; i < 2; i++) {
- pic->motion_val_buf[i] = av_buffer_pool_get(h->motion_val_pool);
- pic->ref_index_buf[i] = av_buffer_pool_get(h->ref_index_pool);
- if (!pic->motion_val_buf[i] || !pic->ref_index_buf[i])
- goto fail;
-
- pic->motion_val[i] = (int16_t (*)[2])pic->motion_val_buf[i]->data + 4;
- pic->ref_index[i] = pic->ref_index_buf[i]->data;
- }
-
- return 0;
-fail:
- unref_picture(h, pic);
- return (ret < 0) ? ret : AVERROR(ENOMEM);
-}
-
-static inline int pic_is_unused(H264Context *h, H264Picture *pic)
-{
- if (!pic->f.buf[0])
- return 1;
- if (pic->needs_realloc && !(pic->reference & DELAYED_PIC_REF))
- return 1;
- return 0;
-}
-
-static int find_unused_picture(H264Context *h)
-{
- int i;
-
- for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
- if (pic_is_unused(h, &h->DPB[i]))
- break;
- }
- if (i == H264_MAX_PICTURE_COUNT)
- return AVERROR_INVALIDDATA;
-
- if (h->DPB[i].needs_realloc) {
- h->DPB[i].needs_realloc = 0;
- unref_picture(h, &h->DPB[i]);
- }
-
- return i;
-}
-
/**
* Check if the top & left blocks are available if needed and
* change the dc mode so it only uses the available blocks.
@@ -697,7 +339,7 @@ static int decode_rbsp_trailing(H264Context *h, const uint8_t *src)
return 0;
}
-static void free_tables(H264Context *h, int free_rbsp)
+void ff_h264_free_tables(H264Context *h, int free_rbsp)
{
int i;
H264Context *hx;
@@ -723,7 +365,7 @@ static void free_tables(H264Context *h, int free_rbsp)
if (free_rbsp && h->DPB) {
for (i = 0; i < H264_MAX_PICTURE_COUNT; i++)
- unref_picture(h, &h->DPB[i]);
+ ff_h264_unref_picture(h, &h->DPB[i]);
av_freep(&h->DPB);
} else if (h->DPB) {
for (i = 0; i < H264_MAX_PICTURE_COUNT; i++)
@@ -758,76 +400,6 @@ static void free_tables(H264Context *h, int free_rbsp)
}
}
-static void init_dequant8_coeff_table(H264Context *h)
-{
- int i, j, q, x;
- const int max_qp = 51 + 6 * (h->sps.bit_depth_luma - 8);
-
- for (i = 0; i < 6; i++) {
- h->dequant8_coeff[i] = h->dequant8_buffer[i];
- for (j = 0; j < i; j++)
- if (!memcmp(h->pps.scaling_matrix8[j], h->pps.scaling_matrix8[i],
- 64 * sizeof(uint8_t))) {
- h->dequant8_coeff[i] = h->dequant8_buffer[j];
- break;
- }
- if (j < i)
- continue;
-
- for (q = 0; q < max_qp + 1; q++) {
- int shift = div6[q];
- int idx = rem6[q];
- for (x = 0; x < 64; x++)
- h->dequant8_coeff[i][q][(x >> 3) | ((x & 7) << 3)] =
- ((uint32_t)dequant8_coeff_init[idx][dequant8_coeff_init_scan[((x >> 1) & 12) | (x & 3)]] *
- h->pps.scaling_matrix8[i][x]) << shift;
- }
- }
-}
-
-static void init_dequant4_coeff_table(H264Context *h)
-{
- int i, j, q, x;
- const int max_qp = 51 + 6 * (h->sps.bit_depth_luma - 8);
- for (i = 0; i < 6; i++) {
- h->dequant4_coeff[i] = h->dequant4_buffer[i];
- for (j = 0; j < i; j++)
- if (!memcmp(h->pps.scaling_matrix4[j], h->pps.scaling_matrix4[i],
- 16 * sizeof(uint8_t))) {
- h->dequant4_coeff[i] = h->dequant4_buffer[j];
- break;
- }
- if (j < i)
- continue;
-
- for (q = 0; q < max_qp + 1; q++) {
- int shift = div6[q] + 2;
- int idx = rem6[q];
- for (x = 0; x < 16; x++)
- h->dequant4_coeff[i][q][(x >> 2) | ((x << 2) & 0xF)] =
- ((uint32_t)dequant4_coeff_init[idx][(x & 1) + ((x >> 2) & 1)] *
- h->pps.scaling_matrix4[i][x]) << shift;
- }
- }
-}
-
-static void init_dequant_tables(H264Context *h)
-{
- int i, x;
- init_dequant4_coeff_table(h);
- if (h->pps.transform_8x8_mode)
- init_dequant8_coeff_table(h);
- if (h->sps.transform_bypass) {
- for (i = 0; i < 6; i++)
- for (x = 0; x < 16; x++)
- h->dequant4_coeff[i][0][x] = 1 << 6;
- if (h->pps.transform_8x8_mode)
- for (i = 0; i < 6; i++)
- for (x = 0; x < 64; x++)
- h->dequant8_coeff[i][0][x] = 1 << 6;
- }
-}
-
int ff_h264_alloc_tables(H264Context *h)
{
const int big_mb_num = h->mb_stride * (h->mb_height + 1);
@@ -871,7 +443,7 @@ int ff_h264_alloc_tables(H264Context *h)
}
if (!h->dequant4_coeff[0])
- init_dequant_tables(h);
+ h264_init_dequant_tables(h);
if (!h->DPB) {
h->DPB = av_mallocz_array(H264_MAX_PICTURE_COUNT, sizeof(*h->DPB));
@@ -885,40 +457,15 @@ int ff_h264_alloc_tables(H264Context *h)
return 0;
fail:
- free_tables(h, 1);
+ ff_h264_free_tables(h, 1);
return AVERROR(ENOMEM);
}
/**
- * Mimic alloc_tables(), but for every context thread.
- */
-static void clone_tables(H264Context *dst, H264Context *src, int i)
-{
- dst->intra4x4_pred_mode = src->intra4x4_pred_mode + i * 8 * 2 * src->mb_stride;
- dst->non_zero_count = src->non_zero_count;
- dst->slice_table = src->slice_table;
- dst->cbp_table = src->cbp_table;
- dst->mb2b_xy = src->mb2b_xy;
- dst->mb2br_xy = src->mb2br_xy;
- dst->chroma_pred_mode_table = src->chroma_pred_mode_table;
- dst->mvd_table[0] = src->mvd_table[0] + i * 8 * 2 * src->mb_stride;
- dst->mvd_table[1] = src->mvd_table[1] + i * 8 * 2 * src->mb_stride;
- dst->direct_table = src->direct_table;
- dst->list_counts = src->list_counts;
- dst->DPB = src->DPB;
- dst->cur_pic_ptr = src->cur_pic_ptr;
- dst->cur_pic = src->cur_pic;
- dst->bipred_scratchpad = NULL;
- dst->edge_emu_buffer = NULL;
- ff_h264_pred_init(&dst->hpc, src->avctx->codec_id, src->sps.bit_depth_luma,
- src->sps.chroma_format_idc);
-}
-
-/**
* Init context
* Allocate buffers which are not shared amongst multiple threads.
*/
-static int context_init(H264Context *h)
+int ff_h264_context_init(H264Context *h)
{
ERContext *er = &h->er;
int mb_array_size = h->mb_height * h->mb_stride;
@@ -984,7 +531,7 @@ static int context_init(H264Context *h)
return 0;
fail:
- return AVERROR(ENOMEM); // free_tables will clean up for us
+ return AVERROR(ENOMEM); // ff_h264_free_tables will clean up for us
}
static int decode_nal_units(H264Context *h, const uint8_t *buf, int buf_size,
@@ -1126,48 +673,6 @@ av_cold int ff_h264_decode_init(AVCodecContext *avctx)
return 0;
}
-#define IN_RANGE(a, b, size) (((a) >= (b)) && ((a) < ((b) + (size))))
-#undef REBASE_PICTURE
-#define REBASE_PICTURE(pic, new_ctx, old_ctx) \
- ((pic && pic >= old_ctx->DPB && \
- pic < old_ctx->DPB + H264_MAX_PICTURE_COUNT) ? \
- &new_ctx->DPB[pic - old_ctx->DPB] : NULL)
-
-static void copy_picture_range(H264Picture **to, H264Picture **from, int count,
- H264Context *new_base,
- H264Context *old_base)
-{
- int i;
-
- for (i = 0; i < count; i++) {
- assert((IN_RANGE(from[i], old_base, sizeof(*old_base)) ||
- IN_RANGE(from[i], old_base->DPB,
- sizeof(H264Picture) * H264_MAX_PICTURE_COUNT) ||
- !from[i]));
- to[i] = REBASE_PICTURE(from[i], new_base, old_base);
- }
-}
-
-static int copy_parameter_set(void **to, void **from, int count, int size)
-{
- int i;
-
- for (i = 0; i < count; i++) {
- if (to[i] && !from[i]) {
- av_freep(&to[i]);
- } else if (from[i] && !to[i]) {
- to[i] = av_malloc(size);
- if (!to[i])
- return AVERROR(ENOMEM);
- }
-
- if (from[i])
- memcpy(to[i], from[i], size);
- }
-
- return 0;
-}
-
static int decode_init_thread_copy(AVCodecContext *avctx)
{
H264Context *h = avctx->priv_data;
@@ -1182,294 +687,6 @@ static int decode_init_thread_copy(AVCodecContext *avctx)
return 0;
}
-#define copy_fields(to, from, start_field, end_field) \
- memcpy(&to->start_field, &from->start_field, \
- (char *)&to->end_field - (char *)&to->start_field)
-
-static int h264_slice_header_init(H264Context *, int);
-
-static int h264_set_parameter_from_sps(H264Context *h);
-
-static int decode_update_thread_context(AVCodecContext *dst,
- const AVCodecContext *src)
-{
- H264Context *h = dst->priv_data, *h1 = src->priv_data;
- int inited = h->context_initialized, err = 0;
- int context_reinitialized = 0;
- int i, ret;
-
- if (dst == src || !h1->context_initialized)
- return 0;
-
- if (inited &&
- (h->width != h1->width ||
- h->height != h1->height ||
- h->mb_width != h1->mb_width ||
- h->mb_height != h1->mb_height ||
- h->sps.bit_depth_luma != h1->sps.bit_depth_luma ||
- h->sps.chroma_format_idc != h1->sps.chroma_format_idc ||
- h->sps.colorspace != h1->sps.colorspace)) {
-
- /* set bits_per_raw_sample to the previous value. the check for changed
- * bit depth in h264_set_parameter_from_sps() uses it and sets it to
- * the current value */
- h->avctx->bits_per_raw_sample = h->sps.bit_depth_luma;
-
- av_freep(&h->bipred_scratchpad);
-
- h->width = h1->width;
- h->height = h1->height;
- h->mb_height = h1->mb_height;
- h->mb_width = h1->mb_width;
- h->mb_num = h1->mb_num;
- h->mb_stride = h1->mb_stride;
- h->b_stride = h1->b_stride;
-
- if ((err = h264_slice_header_init(h, 1)) < 0) {
- av_log(h->avctx, AV_LOG_ERROR, "h264_slice_header_init() failed");
- return err;
- }
- context_reinitialized = 1;
-
- /* update linesize on resize. The decoder doesn't
- * necessarily call h264_frame_start in the new thread */
- h->linesize = h1->linesize;
- h->uvlinesize = h1->uvlinesize;
-
- /* copy block_offset since frame_start may not be called */
- memcpy(h->block_offset, h1->block_offset, sizeof(h->block_offset));
- }
-
- if (!inited) {
- for (i = 0; i < MAX_SPS_COUNT; i++)
- av_freep(h->sps_buffers + i);
-
- for (i = 0; i < MAX_PPS_COUNT; i++)
- av_freep(h->pps_buffers + i);
-
- memcpy(h, h1, sizeof(*h1));
- memset(h->sps_buffers, 0, sizeof(h->sps_buffers));
- memset(h->pps_buffers, 0, sizeof(h->pps_buffers));
- memset(&h->er, 0, sizeof(h->er));
- memset(&h->mb, 0, sizeof(h->mb));
- memset(&h->mb_luma_dc, 0, sizeof(h->mb_luma_dc));
- memset(&h->mb_padding, 0, sizeof(h->mb_padding));
- h->context_initialized = 0;
-
- memset(&h->cur_pic, 0, sizeof(h->cur_pic));
- av_frame_unref(&h->cur_pic.f);
- h->cur_pic.tf.f = &h->cur_pic.f;
-
- h->avctx = dst;
- h->DPB = NULL;
- h->qscale_table_pool = NULL;
- h->mb_type_pool = NULL;
- h->ref_index_pool = NULL;
- h->motion_val_pool = NULL;
-
- ret = ff_h264_alloc_tables(h);
- if (ret < 0) {
- av_log(dst, AV_LOG_ERROR, "Could not allocate memory\n");
- return ret;
- }
- ret = context_init(h);
- if (ret < 0) {
- av_log(dst, AV_LOG_ERROR, "context_init() failed.\n");
- return ret;
- }
-
- for (i = 0; i < 2; i++) {
- h->rbsp_buffer[i] = NULL;
- h->rbsp_buffer_size[i] = 0;
- }
- h->bipred_scratchpad = NULL;
- h->edge_emu_buffer = NULL;
-
- h->thread_context[0] = h;
-
- h->context_initialized = 1;
- }
-
- h->avctx->coded_height = h1->avctx->coded_height;
- h->avctx->coded_width = h1->avctx->coded_width;
- h->avctx->width = h1->avctx->width;
- h->avctx->height = h1->avctx->height;
- h->coded_picture_number = h1->coded_picture_number;
- h->first_field = h1->first_field;
- h->picture_structure = h1->picture_structure;
- h->qscale = h1->qscale;
- h->droppable = h1->droppable;
- h->low_delay = h1->low_delay;
-
- for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
- unref_picture(h, &h->DPB[i]);
- if (h1->DPB[i].f.buf[0] &&
- (ret = ref_picture(h, &h->DPB[i], &h1->DPB[i])) < 0)
- return ret;
- }
-
- h->cur_pic_ptr = REBASE_PICTURE(h1->cur_pic_ptr, h, h1);
- unref_picture(h, &h->cur_pic);
- if ((ret = ref_picture(h, &h->cur_pic, &h1->cur_pic)) < 0)
- return ret;
-
- h->workaround_bugs = h1->workaround_bugs;
- h->low_delay = h1->low_delay;
- h->droppable = h1->droppable;
-
- /* frame_start may not be called for the next thread (if it's decoding
- * a bottom field) so this has to be allocated here */
- err = alloc_scratch_buffers(h, h1->linesize);
- if (err < 0)
- return err;
-
- // extradata/NAL handling
- h->is_avc = h1->is_avc;
-
- // SPS/PPS
- if ((ret = copy_parameter_set((void **)h->sps_buffers,
- (void **)h1->sps_buffers,
- MAX_SPS_COUNT, sizeof(SPS))) < 0)
- return ret;
- h->sps = h1->sps;
- if ((ret = copy_parameter_set((void **)h->pps_buffers,
- (void **)h1->pps_buffers,
- MAX_PPS_COUNT, sizeof(PPS))) < 0)
- return ret;
- h->pps = h1->pps;
-
- // Dequantization matrices
- // FIXME these are big - can they be only copied when PPS changes?
- copy_fields(h, h1, dequant4_buffer, dequant4_coeff);
-
- for (i = 0; i < 6; i++)
- h->dequant4_coeff[i] = h->dequant4_buffer[0] +
- (h1->dequant4_coeff[i] - h1->dequant4_buffer[0]);
-
- for (i = 0; i < 6; i++)
- h->dequant8_coeff[i] = h->dequant8_buffer[0] +
- (h1->dequant8_coeff[i] - h1->dequant8_buffer[0]);
-
- h->dequant_coeff_pps = h1->dequant_coeff_pps;
-
- // POC timing
- copy_fields(h, h1, poc_lsb, redundant_pic_count);
-
- // reference lists
- copy_fields(h, h1, short_ref, cabac_init_idc);
-
- copy_picture_range(h->short_ref, h1->short_ref, 32, h, h1);
- copy_picture_range(h->long_ref, h1->long_ref, 32, h, h1);
- copy_picture_range(h->delayed_pic, h1->delayed_pic,
- MAX_DELAYED_PIC_COUNT + 2, h, h1);
-
- h->last_slice_type = h1->last_slice_type;
-
- if (context_reinitialized)
- h264_set_parameter_from_sps(h);
-
- if (!h->cur_pic_ptr)
- return 0;
-
- if (!h->droppable) {
- err = ff_h264_execute_ref_pic_marking(h, h->mmco, h->mmco_index);
- h->prev_poc_msb = h->poc_msb;
- h->prev_poc_lsb = h->poc_lsb;
- }
- h->prev_frame_num_offset = h->frame_num_offset;
- h->prev_frame_num = h->frame_num;
- h->outputed_poc = h->next_outputed_poc;
-
- h->recovery_frame = h1->recovery_frame;
- h->frame_recovered = h1->frame_recovered;
-
- return err;
-}
-
-static int h264_frame_start(H264Context *h)
-{
- H264Picture *pic;
- int i, ret;
- const int pixel_shift = h->pixel_shift;
-
- release_unused_pictures(h, 1);
- h->cur_pic_ptr = NULL;
-
- i = find_unused_picture(h);
- if (i < 0) {
- av_log(h->avctx, AV_LOG_ERROR, "no frame buffer available\n");
- return i;
- }
- pic = &h->DPB[i];
-
- pic->reference = h->droppable ? 0 : h->picture_structure;
- pic->f.coded_picture_number = h->coded_picture_number++;
- pic->field_picture = h->picture_structure != PICT_FRAME;
- /*
- * Zero key_frame here; IDR markings per slice in frame or fields are ORed
- * in later.
- * See decode_nal_units().
- */
- pic->f.key_frame = 0;
- pic->mmco_reset = 0;
- pic->recovered = 0;
-
- if ((ret = alloc_picture(h, pic)) < 0)
- return ret;
-
- h->cur_pic_ptr = pic;
- unref_picture(h, &h->cur_pic);
- if ((ret = ref_picture(h, &h->cur_pic, h->cur_pic_ptr)) < 0)
- return ret;
-
- if (CONFIG_ERROR_RESILIENCE)
- ff_er_frame_start(&h->er);
-
- assert(h->linesize && h->uvlinesize);
-
- for (i = 0; i < 16; i++) {
- h->block_offset[i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 4 * h->linesize * ((scan8[i] - scan8[0]) >> 3);
- h->block_offset[48 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 8 * h->linesize * ((scan8[i] - scan8[0]) >> 3);
- }
- for (i = 0; i < 16; i++) {
- h->block_offset[16 + i] =
- h->block_offset[32 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 4 * h->uvlinesize * ((scan8[i] - scan8[0]) >> 3);
- h->block_offset[48 + 16 + i] =
- h->block_offset[48 + 32 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 8 * h->uvlinesize * ((scan8[i] - scan8[0]) >> 3);
- }
-
- /* can't be in alloc_tables because linesize isn't known there.
- * FIXME: redo bipred weight to not require extra buffer? */
- for (i = 0; i < h->slice_context_count; i++)
- if (h->thread_context[i]) {
- ret = alloc_scratch_buffers(h->thread_context[i], h->linesize);
- if (ret < 0)
- return ret;
- }
-
- /* Some macroblocks can be accessed before they're available in case
- * of lost slices, MBAFF or threading. */
- memset(h->slice_table, -1,
- (h->mb_height * h->mb_stride - 1) * sizeof(*h->slice_table));
-
- // s->decode = (s->flags & CODEC_FLAG_PSNR) || !s->encoding ||
- // s->current_picture.f.reference /* || h->contains_intra */ || 1;
-
- /* We mark the current picture as non-reference after allocating it, so
- * that if we break out due to an error it can be released automatically
- * in the next ff_MPV_frame_start().
- */
- h->cur_pic_ptr->reference = 0;
-
- h->cur_pic_ptr->field_poc[0] = h->cur_pic_ptr->field_poc[1] = INT_MAX;
-
- h->next_output_pic = NULL;
-
- assert(h->cur_pic_ptr->long_ref == 0);
-
- return 0;
-}
-
/**
* Run setup operations that must be run after slice header decoding.
* This includes finding the next displayed frame.
@@ -1737,102 +954,6 @@ static void decode_postinit(H264Context *h, int setup_finished)
ff_thread_finish_setup(h->avctx);
}
-static av_always_inline void backup_mb_border(H264Context *h, uint8_t *src_y,
- uint8_t *src_cb, uint8_t *src_cr,
- int linesize, int uvlinesize,
- int simple)
-{
- uint8_t *top_border;
- int top_idx = 1;
- const int pixel_shift = h->pixel_shift;
- int chroma444 = CHROMA444(h);
- int chroma422 = CHROMA422(h);
-
- src_y -= linesize;
- src_cb -= uvlinesize;
- src_cr -= uvlinesize;
-
- if (!simple && FRAME_MBAFF(h)) {
- if (h->mb_y & 1) {
- if (!MB_MBAFF(h)) {
- top_border = h->top_borders[0][h->mb_x];
- AV_COPY128(top_border, src_y + 15 * linesize);
- if (pixel_shift)
- AV_COPY128(top_border + 16, src_y + 15 * linesize + 16);
- if (simple || !CONFIG_GRAY || !(h->flags & CODEC_FLAG_GRAY)) {
- if (chroma444) {
- if (pixel_shift) {
- AV_COPY128(top_border + 32, src_cb + 15 * uvlinesize);
- AV_COPY128(top_border + 48, src_cb + 15 * uvlinesize + 16);
- AV_COPY128(top_border + 64, src_cr + 15 * uvlinesize);
- AV_COPY128(top_border + 80, src_cr + 15 * uvlinesize + 16);
- } else {
- AV_COPY128(top_border + 16, src_cb + 15 * uvlinesize);
- AV_COPY128(top_border + 32, src_cr + 15 * uvlinesize);
- }
- } else if (chroma422) {
- if (pixel_shift) {
- AV_COPY128(top_border + 32, src_cb + 15 * uvlinesize);
- AV_COPY128(top_border + 48, src_cr + 15 * uvlinesize);
- } else {
- AV_COPY64(top_border + 16, src_cb + 15 * uvlinesize);
- AV_COPY64(top_border + 24, src_cr + 15 * uvlinesize);
- }
- } else {
- if (pixel_shift) {
- AV_COPY128(top_border + 32, src_cb + 7 * uvlinesize);
- AV_COPY128(top_border + 48, src_cr + 7 * uvlinesize);
- } else {
- AV_COPY64(top_border + 16, src_cb + 7 * uvlinesize);
- AV_COPY64(top_border + 24, src_cr + 7 * uvlinesize);
- }
- }
- }
- }
- } else if (MB_MBAFF(h)) {
- top_idx = 0;
- } else
- return;
- }
-
- top_border = h->top_borders[top_idx][h->mb_x];
- /* There are two lines saved, the line above the top macroblock
- * of a pair, and the line above the bottom macroblock. */
- AV_COPY128(top_border, src_y + 16 * linesize);
- if (pixel_shift)
- AV_COPY128(top_border + 16, src_y + 16 * linesize + 16);
-
- if (simple || !CONFIG_GRAY || !(h->flags & CODEC_FLAG_GRAY)) {
- if (chroma444) {
- if (pixel_shift) {
- AV_COPY128(top_border + 32, src_cb + 16 * linesize);
- AV_COPY128(top_border + 48, src_cb + 16 * linesize + 16);
- AV_COPY128(top_border + 64, src_cr + 16 * linesize);
- AV_COPY128(top_border + 80, src_cr + 16 * linesize + 16);
- } else {
- AV_COPY128(top_border + 16, src_cb + 16 * linesize);
- AV_COPY128(top_border + 32, src_cr + 16 * linesize);
- }
- } else if (chroma422) {
- if (pixel_shift) {
- AV_COPY128(top_border + 32, src_cb + 16 * uvlinesize);
- AV_COPY128(top_border + 48, src_cr + 16 * uvlinesize);
- } else {
- AV_COPY64(top_border + 16, src_cb + 16 * uvlinesize);
- AV_COPY64(top_border + 24, src_cr + 16 * uvlinesize);
- }
- } else {
- if (pixel_shift) {
- AV_COPY128(top_border + 32, src_cb + 8 * uvlinesize);
- AV_COPY128(top_border + 48, src_cr + 8 * uvlinesize);
- } else {
- AV_COPY64(top_border + 16, src_cb + 8 * uvlinesize);
- AV_COPY64(top_border + 24, src_cr + 8 * uvlinesize);
- }
- }
- }
-}
-
int ff_pred_weight_table(H264Context *h)
{
int list, i;
@@ -1896,72 +1017,6 @@ int ff_pred_weight_table(H264Context *h)
}
/**
- * Initialize implicit_weight table.
- * @param field 0/1 initialize the weight for interlaced MBAFF
- * -1 initializes the rest
- */
-static void implicit_weight_table(H264Context *h, int field)
-{
- int ref0, ref1, i, cur_poc, ref_start, ref_count0, ref_count1;
-
- for (i = 0; i < 2; i++) {
- h->luma_weight_flag[i] = 0;
- h->chroma_weight_flag[i] = 0;
- }
-
- if (field < 0) {
- if (h->picture_structure == PICT_FRAME) {
- cur_poc = h->cur_pic_ptr->poc;
- } else {
- cur_poc = h->cur_pic_ptr->field_poc[h->picture_structure - 1];
- }
- if (h->ref_count[0] == 1 && h->ref_count[1] == 1 && !FRAME_MBAFF(h) &&
- h->ref_list[0][0].poc + h->ref_list[1][0].poc == 2 * cur_poc) {
- h->use_weight = 0;
- h->use_weight_chroma = 0;
- return;
- }
- ref_start = 0;
- ref_count0 = h->ref_count[0];
- ref_count1 = h->ref_count[1];
- } else {
- cur_poc = h->cur_pic_ptr->field_poc[field];
- ref_start = 16;
- ref_count0 = 16 + 2 * h->ref_count[0];
- ref_count1 = 16 + 2 * h->ref_count[1];
- }
-
- h->use_weight = 2;
- h->use_weight_chroma = 2;
- h->luma_log2_weight_denom = 5;
- h->chroma_log2_weight_denom = 5;
-
- for (ref0 = ref_start; ref0 < ref_count0; ref0++) {
- int poc0 = h->ref_list[0][ref0].poc;
- for (ref1 = ref_start; ref1 < ref_count1; ref1++) {
- int w = 32;
- if (!h->ref_list[0][ref0].long_ref && !h->ref_list[1][ref1].long_ref) {
- int poc1 = h->ref_list[1][ref1].poc;
- int td = av_clip(poc1 - poc0, -128, 127);
- if (td) {
- int tb = av_clip(cur_poc - poc0, -128, 127);
- int tx = (16384 + (FFABS(td) >> 1)) / td;
- int dist_scale_factor = (tb * tx + 32) >> 8;
- if (dist_scale_factor >= -64 && dist_scale_factor <= 128)
- w = 64 - dist_scale_factor;
- }
- }
- if (field < 0) {
- h->implicit_weight[ref0][ref1][0] =
- h->implicit_weight[ref0][ref1][1] = w;
- } else {
- h->implicit_weight[ref0][ref1][field] = w;
- }
- }
- }
-}
-
-/**
* instantaneous decoder refresh.
*/
static void idr(H264Context *h)
@@ -1974,7 +1029,7 @@ static void idr(H264Context *h)
}
/* forget old pics after a seek */
-static void flush_change(H264Context *h)
+void ff_h264_flush_change(H264Context *h)
{
int i;
for (i = 0; i < MAX_DELAYED_PIC_COUNT; i++)
@@ -2006,13 +1061,13 @@ static void flush_dpb(AVCodecContext *avctx)
h->delayed_pic[i] = NULL;
}
- flush_change(h);
+ ff_h264_flush_change(h);
if (h->DPB)
for (i = 0; i < H264_MAX_PICTURE_COUNT; i++)
- unref_picture(h, &h->DPB[i]);
+ ff_h264_unref_picture(h, &h->DPB[i]);
h->cur_pic_ptr = NULL;
- unref_picture(h, &h->cur_pic);
+ ff_h264_unref_picture(h, &h->cur_pic);
h->mb_x = h->mb_y = 0;
@@ -2023,7 +1078,7 @@ static void flush_dpb(AVCodecContext *avctx)
h->parse_context.index = 0;
h->parse_context.last_index = 0;
- free_tables(h, 1);
+ ff_h264_free_tables(h, 1);
h->context_initialized = 0;
}
@@ -2106,146 +1161,6 @@ int ff_init_poc(H264Context *h, int pic_field_poc[2], int *pic_poc)
}
/**
- * initialize scan tables
- */
-static void init_scan_tables(H264Context *h)
-{
- int i;
- for (i = 0; i < 16; i++) {
-#define TRANSPOSE(x) (x >> 2) | ((x << 2) & 0xF)
- h->zigzag_scan[i] = TRANSPOSE(zigzag_scan[i]);
- h->field_scan[i] = TRANSPOSE(field_scan[i]);
-#undef TRANSPOSE
- }
- for (i = 0; i < 64; i++) {
-#define TRANSPOSE(x) (x >> 3) | ((x & 7) << 3)
- h->zigzag_scan8x8[i] = TRANSPOSE(ff_zigzag_direct[i]);
- h->zigzag_scan8x8_cavlc[i] = TRANSPOSE(zigzag_scan8x8_cavlc[i]);
- h->field_scan8x8[i] = TRANSPOSE(field_scan8x8[i]);
- h->field_scan8x8_cavlc[i] = TRANSPOSE(field_scan8x8_cavlc[i]);
-#undef TRANSPOSE
- }
- if (h->sps.transform_bypass) { // FIXME same ugly
- h->zigzag_scan_q0 = zigzag_scan;
- h->zigzag_scan8x8_q0 = ff_zigzag_direct;
- h->zigzag_scan8x8_cavlc_q0 = zigzag_scan8x8_cavlc;
- h->field_scan_q0 = field_scan;
- h->field_scan8x8_q0 = field_scan8x8;
- h->field_scan8x8_cavlc_q0 = field_scan8x8_cavlc;
- } else {
- h->zigzag_scan_q0 = h->zigzag_scan;
- h->zigzag_scan8x8_q0 = h->zigzag_scan8x8;
- h->zigzag_scan8x8_cavlc_q0 = h->zigzag_scan8x8_cavlc;
- h->field_scan_q0 = h->field_scan;
- h->field_scan8x8_q0 = h->field_scan8x8;
- h->field_scan8x8_cavlc_q0 = h->field_scan8x8_cavlc;
- }
-}
-
-#if CONFIG_ERROR_RESILIENCE
-static void h264_set_erpic(ERPicture *dst, H264Picture *src)
-{
- int i;
-
- if (!src)
- return;
-
- dst->f = &src->f;
- dst->tf = &src->tf;
-
- for (i = 0; i < 2; i++) {
- dst->motion_val[i] = src->motion_val[i];
- dst->ref_index[i] = src->ref_index[i];
- }
-
- dst->mb_type = src->mb_type;
- dst->field_picture = src->field_picture;
-}
-#endif /* CONFIG_ERROR_RESILIENCE */
-
-static int field_end(H264Context *h, int in_setup)
-{
- AVCodecContext *const avctx = h->avctx;
- int err = 0;
- h->mb_y = 0;
-
- if (!in_setup && !h->droppable)
- ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
- h->picture_structure == PICT_BOTTOM_FIELD);
-
- if (in_setup || !(avctx->active_thread_type & FF_THREAD_FRAME)) {
- if (!h->droppable) {
- err = ff_h264_execute_ref_pic_marking(h, h->mmco, h->mmco_index);
- h->prev_poc_msb = h->poc_msb;
- h->prev_poc_lsb = h->poc_lsb;
- }
- h->prev_frame_num_offset = h->frame_num_offset;
- h->prev_frame_num = h->frame_num;
- h->outputed_poc = h->next_outputed_poc;
- }
-
- if (avctx->hwaccel) {
- if (avctx->hwaccel->end_frame(avctx) < 0)
- av_log(avctx, AV_LOG_ERROR,
- "hardware accelerator failed to decode picture\n");
- }
-
- /*
- * FIXME: Error handling code does not seem to support interlaced
- * when slices span multiple rows
- * The ff_er_add_slice calls don't work right for bottom
- * fields; they cause massive erroneous error concealing
- * Error marking covers both fields (top and bottom).
- * This causes a mismatched s->error_count
- * and a bad error table. Further, the error count goes to
- * INT_MAX when called for bottom field, because mb_y is
- * past end by one (callers fault) and resync_mb_y != 0
- * causes problems for the first MB line, too.
- */
- if (CONFIG_ERROR_RESILIENCE && !FIELD_PICTURE(h)) {
- h264_set_erpic(&h->er.cur_pic, h->cur_pic_ptr);
- h264_set_erpic(&h->er.last_pic,
- h->ref_count[0] ? &h->ref_list[0][0] : NULL);
- h264_set_erpic(&h->er.next_pic,
- h->ref_count[1] ? &h->ref_list[1][0] : NULL);
- ff_er_frame_end(&h->er);
- }
- emms_c();
-
- h->current_slice = 0;
-
- return err;
-}
-
-/**
- * Replicate H264 "master" context to thread contexts.
- */
-static int clone_slice(H264Context *dst, H264Context *src)
-{
- memcpy(dst->block_offset, src->block_offset, sizeof(dst->block_offset));
- dst->cur_pic_ptr = src->cur_pic_ptr;
- dst->cur_pic = src->cur_pic;
- dst->linesize = src->linesize;
- dst->uvlinesize = src->uvlinesize;
- dst->first_field = src->first_field;
-
- dst->prev_poc_msb = src->prev_poc_msb;
- dst->prev_poc_lsb = src->prev_poc_lsb;
- dst->prev_frame_num_offset = src->prev_frame_num_offset;
- dst->prev_frame_num = src->prev_frame_num;
- dst->short_ref_count = src->short_ref_count;
-
- memcpy(dst->short_ref, src->short_ref, sizeof(dst->short_ref));
- memcpy(dst->long_ref, src->long_ref, sizeof(dst->long_ref));
- memcpy(dst->default_ref_list, src->default_ref_list, sizeof(dst->default_ref_list));
-
- memcpy(dst->dequant4_coeff, src->dequant4_coeff, sizeof(src->dequant4_coeff));
- memcpy(dst->dequant8_coeff, src->dequant8_coeff, sizeof(src->dequant8_coeff));
-
- return 0;
-}
-
-/**
* Compute profile from profile_idc and constraint_set?_flags.
*
* @param sps SPS
@@ -2272,7 +1187,7 @@ int ff_h264_get_profile(SPS *sps)
return profile;
}
-static int h264_set_parameter_from_sps(H264Context *h)
+int ff_h264_set_parameter_from_sps(H264Context *h)
{
if (h->flags & CODEC_FLAG_LOW_DELAY ||
(h->sps.bitstream_restriction_flag &&
@@ -2312,194 +1227,6 @@ static int h264_set_parameter_from_sps(H264Context *h)
return 0;
}
-static enum AVPixelFormat get_pixel_format(H264Context *h)
-{
- switch (h->sps.bit_depth_luma) {
- case 9:
- if (CHROMA444(h)) {
- if (h->avctx->colorspace == AVCOL_SPC_RGB) {
- return AV_PIX_FMT_GBRP9;
- } else
- return AV_PIX_FMT_YUV444P9;
- } else if (CHROMA422(h))
- return AV_PIX_FMT_YUV422P9;
- else
- return AV_PIX_FMT_YUV420P9;
- break;
- case 10:
- if (CHROMA444(h)) {
- if (h->avctx->colorspace == AVCOL_SPC_RGB) {
- return AV_PIX_FMT_GBRP10;
- } else
- return AV_PIX_FMT_YUV444P10;
- } else if (CHROMA422(h))
- return AV_PIX_FMT_YUV422P10;
- else
- return AV_PIX_FMT_YUV420P10;
- break;
- case 8:
- if (CHROMA444(h)) {
- if (h->avctx->colorspace == AVCOL_SPC_RGB) {
- return AV_PIX_FMT_GBRP;
- } else
- return h->avctx->color_range == AVCOL_RANGE_JPEG ? AV_PIX_FMT_YUVJ444P
- : AV_PIX_FMT_YUV444P;
- } else if (CHROMA422(h)) {
- return h->avctx->color_range == AVCOL_RANGE_JPEG ? AV_PIX_FMT_YUVJ422P
- : AV_PIX_FMT_YUV422P;
- } else {
- return h->avctx->get_format(h->avctx, h->avctx->codec->pix_fmts ?
- h->avctx->codec->pix_fmts :
- h->avctx->color_range == AVCOL_RANGE_JPEG ?
- h264_hwaccel_pixfmt_list_jpeg_420 :
- h264_hwaccel_pixfmt_list_420);
- }
- break;
- default:
- av_log(h->avctx, AV_LOG_ERROR,
- "Unsupported bit depth %d\n", h->sps.bit_depth_luma);
- return AVERROR_INVALIDDATA;
- }
-}
-
-/* export coded and cropped frame dimensions to AVCodecContext */
-static int init_dimensions(H264Context *h)
-{
- int width = h->width - (h->sps.crop_right + h->sps.crop_left);
- int height = h->height - (h->sps.crop_top + h->sps.crop_bottom);
-
- /* handle container cropping */
- if (!h->sps.crop &&
- FFALIGN(h->avctx->width, 16) == h->width &&
- FFALIGN(h->avctx->height, 16) == h->height) {
- width = h->avctx->width;
- height = h->avctx->height;
- }
-
- if (width <= 0 || height <= 0) {
- av_log(h->avctx, AV_LOG_ERROR, "Invalid cropped dimensions: %dx%d.\n",
- width, height);
- if (h->avctx->err_recognition & AV_EF_EXPLODE)
- return AVERROR_INVALIDDATA;
-
- av_log(h->avctx, AV_LOG_WARNING, "Ignoring cropping information.\n");
- h->sps.crop_bottom = h->sps.crop_top = h->sps.crop_right = h->sps.crop_left = 0;
- h->sps.crop = 0;
-
- width = h->width;
- height = h->height;
- }
-
- h->avctx->coded_width = h->width;
- h->avctx->coded_height = h->height;
- h->avctx->width = width;
- h->avctx->height = height;
-
- return 0;
-}
-
-static int h264_slice_header_init(H264Context *h, int reinit)
-{
- int nb_slices = (HAVE_THREADS &&
- h->avctx->active_thread_type & FF_THREAD_SLICE) ?
- h->avctx->thread_count : 1;
- int i, ret;
-
- h->avctx->sample_aspect_ratio = h->sps.sar;
- av_assert0(h->avctx->sample_aspect_ratio.den);
- av_pix_fmt_get_chroma_sub_sample(h->avctx->pix_fmt,
- &h->chroma_x_shift, &h->chroma_y_shift);
-
- if (h->sps.timing_info_present_flag) {
- int64_t den = h->sps.time_scale;
- if (h->x264_build < 44U)
- den *= 2;
- av_reduce(&h->avctx->time_base.num, &h->avctx->time_base.den,
- h->sps.num_units_in_tick, den, 1 << 30);
- }
-
- h->avctx->hwaccel = ff_find_hwaccel(h->avctx);
-
- if (reinit)
- free_tables(h, 0);
- h->first_field = 0;
- h->prev_interlaced_frame = 1;
-
- init_scan_tables(h);
- ret = ff_h264_alloc_tables(h);
- if (ret < 0) {
- av_log(h->avctx, AV_LOG_ERROR, "Could not allocate memory\n");
- return ret;
- }
-
- if (nb_slices > H264_MAX_THREADS || (nb_slices > h->mb_height && h->mb_height)) {
- int max_slices;
- if (h->mb_height)
- max_slices = FFMIN(H264_MAX_THREADS, h->mb_height);
- else
- max_slices = H264_MAX_THREADS;
- av_log(h->avctx, AV_LOG_WARNING, "too many threads/slices %d,"
- " reducing to %d\n", nb_slices, max_slices);
- nb_slices = max_slices;
- }
- h->slice_context_count = nb_slices;
-
- if (!HAVE_THREADS || !(h->avctx->active_thread_type & FF_THREAD_SLICE)) {
- ret = context_init(h);
- if (ret < 0) {
- av_log(h->avctx, AV_LOG_ERROR, "context_init() failed.\n");
- return ret;
- }
- } else {
- for (i = 1; i < h->slice_context_count; i++) {
- H264Context *c;
- c = h->thread_context[i] = av_mallocz(sizeof(H264Context));
- if (!c)
- return AVERROR(ENOMEM);
- c->avctx = h->avctx;
- c->dsp = h->dsp;
- c->vdsp = h->vdsp;
- c->h264dsp = h->h264dsp;
- c->h264qpel = h->h264qpel;
- c->h264chroma = h->h264chroma;
- c->sps = h->sps;
- c->pps = h->pps;
- c->pixel_shift = h->pixel_shift;
- c->width = h->width;
- c->height = h->height;
- c->linesize = h->linesize;
- c->uvlinesize = h->uvlinesize;
- c->chroma_x_shift = h->chroma_x_shift;
- c->chroma_y_shift = h->chroma_y_shift;
- c->qscale = h->qscale;
- c->droppable = h->droppable;
- c->data_partitioning = h->data_partitioning;
- c->low_delay = h->low_delay;
- c->mb_width = h->mb_width;
- c->mb_height = h->mb_height;
- c->mb_stride = h->mb_stride;
- c->mb_num = h->mb_num;
- c->flags = h->flags;
- c->workaround_bugs = h->workaround_bugs;
- c->pict_type = h->pict_type;
-
- init_scan_tables(c);
- clone_tables(c, h, i);
- c->context_initialized = 1;
- }
-
- for (i = 0; i < h->slice_context_count; i++)
- if ((ret = context_init(h->thread_context[i])) < 0) {
- av_log(h->avctx, AV_LOG_ERROR, "context_init() failed.\n");
- return ret;
- }
- }
-
- h->context_initialized = 1;
-
- return 0;
-}
-
int ff_set_ref_count(H264Context *h)
{
int ref_count[2], list_count;
@@ -2554,1226 +1281,6 @@ int ff_set_ref_count(H264Context *h)
return 0;
}
-/**
- * Decode a slice header.
- * This will (re)intialize the decoder and call h264_frame_start() as needed.
- *
- * @param h h264context
- * @param h0 h264 master context (differs from 'h' when doing sliced based
- * parallel decoding)
- *
- * @return 0 if okay, <0 if an error occurred, 1 if decoding must not be multithreaded
- */
-static int decode_slice_header(H264Context *h, H264Context *h0)
-{
- unsigned int first_mb_in_slice;
- unsigned int pps_id;
- int ret;
- unsigned int slice_type, tmp, i, j;
- int default_ref_list_done = 0;
- int last_pic_structure, last_pic_droppable;
- int needs_reinit = 0;
- int field_pic_flag, bottom_field_flag;
-
- h->qpel_put = h->h264qpel.put_h264_qpel_pixels_tab;
- h->qpel_avg = h->h264qpel.avg_h264_qpel_pixels_tab;
-
- first_mb_in_slice = get_ue_golomb(&h->gb);
-
- if (first_mb_in_slice == 0) { // FIXME better field boundary detection
- if (h0->current_slice && h->cur_pic_ptr && FIELD_PICTURE(h)) {
- field_end(h, 1);
- }
-
- h0->current_slice = 0;
- if (!h0->first_field) {
- if (h->cur_pic_ptr && !h->droppable) {
- ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
- h->picture_structure == PICT_BOTTOM_FIELD);
- }
- h->cur_pic_ptr = NULL;
- }
- }
-
- slice_type = get_ue_golomb_31(&h->gb);
- if (slice_type > 9) {
- av_log(h->avctx, AV_LOG_ERROR,
- "slice type %d too large at %d %d\n",
- slice_type, h->mb_x, h->mb_y);
- return AVERROR_INVALIDDATA;
- }
- if (slice_type > 4) {
- slice_type -= 5;
- h->slice_type_fixed = 1;
- } else
- h->slice_type_fixed = 0;
-
- slice_type = golomb_to_pict_type[slice_type];
- if (slice_type == AV_PICTURE_TYPE_I ||
- (h0->current_slice != 0 && slice_type == h0->last_slice_type)) {
- default_ref_list_done = 1;
- }
- h->slice_type = slice_type;
- h->slice_type_nos = slice_type & 3;
-
- if (h->nal_unit_type == NAL_IDR_SLICE &&
- h->slice_type_nos != AV_PICTURE_TYPE_I) {
- av_log(h->avctx, AV_LOG_ERROR, "A non-intra slice in an IDR NAL unit.\n");
- return AVERROR_INVALIDDATA;
- }
-
- // to make a few old functions happy, it's wrong though
- h->pict_type = h->slice_type;
-
- pps_id = get_ue_golomb(&h->gb);
- if (pps_id >= MAX_PPS_COUNT) {
- av_log(h->avctx, AV_LOG_ERROR, "pps_id %u out of range\n", pps_id);
- return AVERROR_INVALIDDATA;
- }
- if (!h0->pps_buffers[pps_id]) {
- av_log(h->avctx, AV_LOG_ERROR,
- "non-existing PPS %u referenced\n",
- pps_id);
- return AVERROR_INVALIDDATA;
- }
- h->pps = *h0->pps_buffers[pps_id];
-
- if (!h0->sps_buffers[h->pps.sps_id]) {
- av_log(h->avctx, AV_LOG_ERROR,
- "non-existing SPS %u referenced\n",
- h->pps.sps_id);
- return AVERROR_INVALIDDATA;
- }
-
- if (h->pps.sps_id != h->sps.sps_id ||
- h0->sps_buffers[h->pps.sps_id]->new) {
- h0->sps_buffers[h->pps.sps_id]->new = 0;
-
- h->sps = *h0->sps_buffers[h->pps.sps_id];
-
- if (h->bit_depth_luma != h->sps.bit_depth_luma ||
- h->chroma_format_idc != h->sps.chroma_format_idc) {
- h->bit_depth_luma = h->sps.bit_depth_luma;
- h->chroma_format_idc = h->sps.chroma_format_idc;
- needs_reinit = 1;
- }
- if ((ret = h264_set_parameter_from_sps(h)) < 0)
- return ret;
- }
-
- h->avctx->profile = ff_h264_get_profile(&h->sps);
- h->avctx->level = h->sps.level_idc;
- h->avctx->refs = h->sps.ref_frame_count;
-
- if (h->mb_width != h->sps.mb_width ||
- h->mb_height != h->sps.mb_height * (2 - h->sps.frame_mbs_only_flag))
- needs_reinit = 1;
-
- h->mb_width = h->sps.mb_width;
- h->mb_height = h->sps.mb_height * (2 - h->sps.frame_mbs_only_flag);
- h->mb_num = h->mb_width * h->mb_height;
- h->mb_stride = h->mb_width + 1;
-
- h->b_stride = h->mb_width * 4;
-
- h->chroma_y_shift = h->sps.chroma_format_idc <= 1; // 400 uses yuv420p
-
- h->width = 16 * h->mb_width;
- h->height = 16 * h->mb_height;
-
- ret = init_dimensions(h);
- if (ret < 0)
- return ret;
-
- if (h->sps.video_signal_type_present_flag) {
- h->avctx->color_range = h->sps.full_range ? AVCOL_RANGE_JPEG
- : AVCOL_RANGE_MPEG;
- if (h->sps.colour_description_present_flag) {
- if (h->avctx->colorspace != h->sps.colorspace)
- needs_reinit = 1;
- h->avctx->color_primaries = h->sps.color_primaries;
- h->avctx->color_trc = h->sps.color_trc;
- h->avctx->colorspace = h->sps.colorspace;
- }
- }
-
- if (h->context_initialized &&
- (h->width != h->avctx->coded_width ||
- h->height != h->avctx->coded_height ||
- needs_reinit)) {
- if (h != h0) {
- av_log(h->avctx, AV_LOG_ERROR,
- "changing width %d -> %d / height %d -> %d on "
- "slice %d\n",
- h->width, h->avctx->coded_width,
- h->height, h->avctx->coded_height,
- h0->current_slice + 1);
- return AVERROR_INVALIDDATA;
- }
-
- flush_change(h);
-
- if ((ret = get_pixel_format(h)) < 0)
- return ret;
- h->avctx->pix_fmt = ret;
-
- av_log(h->avctx, AV_LOG_INFO, "Reinit context to %dx%d, "
- "pix_fmt: %d\n", h->width, h->height, h->avctx->pix_fmt);
-
- if ((ret = h264_slice_header_init(h, 1)) < 0) {
- av_log(h->avctx, AV_LOG_ERROR,
- "h264_slice_header_init() failed\n");
- return ret;
- }
- }
- if (!h->context_initialized) {
- if (h != h0) {
- av_log(h->avctx, AV_LOG_ERROR,
- "Cannot (re-)initialize context during parallel decoding.\n");
- return AVERROR_PATCHWELCOME;
- }
-
- if ((ret = get_pixel_format(h)) < 0)
- return ret;
- h->avctx->pix_fmt = ret;
-
- if ((ret = h264_slice_header_init(h, 0)) < 0) {
- av_log(h->avctx, AV_LOG_ERROR,
- "h264_slice_header_init() failed\n");
- return ret;
- }
- }
-
- if (h == h0 && h->dequant_coeff_pps != pps_id) {
- h->dequant_coeff_pps = pps_id;
- init_dequant_tables(h);
- }
-
- h->frame_num = get_bits(&h->gb, h->sps.log2_max_frame_num);
-
- h->mb_mbaff = 0;
- h->mb_aff_frame = 0;
- last_pic_structure = h0->picture_structure;
- last_pic_droppable = h0->droppable;
- h->droppable = h->nal_ref_idc == 0;
- if (h->sps.frame_mbs_only_flag) {
- h->picture_structure = PICT_FRAME;
- } else {
- field_pic_flag = get_bits1(&h->gb);
- if (field_pic_flag) {
- bottom_field_flag = get_bits1(&h->gb);
- h->picture_structure = PICT_TOP_FIELD + bottom_field_flag;
- } else {
- h->picture_structure = PICT_FRAME;
- h->mb_aff_frame = h->sps.mb_aff;
- }
- }
- h->mb_field_decoding_flag = h->picture_structure != PICT_FRAME;
-
- if (h0->current_slice != 0) {
- if (last_pic_structure != h->picture_structure ||
- last_pic_droppable != h->droppable) {
- av_log(h->avctx, AV_LOG_ERROR,
- "Changing field mode (%d -> %d) between slices is not allowed\n",
- last_pic_structure, h->picture_structure);
- h->picture_structure = last_pic_structure;
- h->droppable = last_pic_droppable;
- return AVERROR_INVALIDDATA;
- } else if (!h0->cur_pic_ptr) {
- av_log(h->avctx, AV_LOG_ERROR,
- "unset cur_pic_ptr on slice %d\n",
- h0->current_slice + 1);
- return AVERROR_INVALIDDATA;
- }
- } else {
- /* Shorten frame num gaps so we don't have to allocate reference
- * frames just to throw them away */
- if (h->frame_num != h->prev_frame_num) {
- int unwrap_prev_frame_num = h->prev_frame_num;
- int max_frame_num = 1 << h->sps.log2_max_frame_num;
-
- if (unwrap_prev_frame_num > h->frame_num)
- unwrap_prev_frame_num -= max_frame_num;
-
- if ((h->frame_num - unwrap_prev_frame_num) > h->sps.ref_frame_count) {
- unwrap_prev_frame_num = (h->frame_num - h->sps.ref_frame_count) - 1;
- if (unwrap_prev_frame_num < 0)
- unwrap_prev_frame_num += max_frame_num;
-
- h->prev_frame_num = unwrap_prev_frame_num;
- }
- }
-
- /* See if we have a decoded first field looking for a pair...
- * Here, we're using that to see if we should mark previously
- * decode frames as "finished".
- * We have to do that before the "dummy" in-between frame allocation,
- * since that can modify s->current_picture_ptr. */
- if (h0->first_field) {
- assert(h0->cur_pic_ptr);
- assert(h0->cur_pic_ptr->f.buf[0]);
- assert(h0->cur_pic_ptr->reference != DELAYED_PIC_REF);
-
- /* figure out if we have a complementary field pair */
- if (!FIELD_PICTURE(h) || h->picture_structure == last_pic_structure) {
- /* Previous field is unmatched. Don't display it, but let it
- * remain for reference if marked as such. */
- if (!last_pic_droppable && last_pic_structure != PICT_FRAME) {
- ff_thread_report_progress(&h0->cur_pic_ptr->tf, INT_MAX,
- last_pic_structure == PICT_TOP_FIELD);
- }
- } else {
- if (h0->cur_pic_ptr->frame_num != h->frame_num) {
- /* This and previous field were reference, but had
- * different frame_nums. Consider this field first in
- * pair. Throw away previous field except for reference
- * purposes. */
- if (!last_pic_droppable && last_pic_structure != PICT_FRAME) {
- ff_thread_report_progress(&h0->cur_pic_ptr->tf, INT_MAX,
- last_pic_structure == PICT_TOP_FIELD);
- }
- } else {
- /* Second field in complementary pair */
- if (!((last_pic_structure == PICT_TOP_FIELD &&
- h->picture_structure == PICT_BOTTOM_FIELD) ||
- (last_pic_structure == PICT_BOTTOM_FIELD &&
- h->picture_structure == PICT_TOP_FIELD))) {
- av_log(h->avctx, AV_LOG_ERROR,
- "Invalid field mode combination %d/%d\n",
- last_pic_structure, h->picture_structure);
- h->picture_structure = last_pic_structure;
- h->droppable = last_pic_droppable;
- return AVERROR_INVALIDDATA;
- } else if (last_pic_droppable != h->droppable) {
- avpriv_request_sample(h->avctx,
- "Found reference and non-reference fields in the same frame, which");
- h->picture_structure = last_pic_structure;
- h->droppable = last_pic_droppable;
- return AVERROR_PATCHWELCOME;
- }
- }
- }
- }
-
- while (h->frame_num != h->prev_frame_num &&
- h->frame_num != (h->prev_frame_num + 1) % (1 << h->sps.log2_max_frame_num)) {
- H264Picture *prev = h->short_ref_count ? h->short_ref[0] : NULL;
- av_log(h->avctx, AV_LOG_DEBUG, "Frame num gap %d %d\n",
- h->frame_num, h->prev_frame_num);
- ret = h264_frame_start(h);
- if (ret < 0) {
- h0->first_field = 0;
- return ret;
- }
-
- h->prev_frame_num++;
- h->prev_frame_num %= 1 << h->sps.log2_max_frame_num;
- h->cur_pic_ptr->frame_num = h->prev_frame_num;
- ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 0);
- ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 1);
- ret = ff_generate_sliding_window_mmcos(h, 1);
- if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
- return ret;
- ret = ff_h264_execute_ref_pic_marking(h, h->mmco, h->mmco_index);
- if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
- return ret;
- /* Error concealment: If a ref is missing, copy the previous ref
- * in its place.
- * FIXME: Avoiding a memcpy would be nice, but ref handling makes
- * many assumptions about there being no actual duplicates.
- * FIXME: This does not copy padding for out-of-frame motion
- * vectors. Given we are concealing a lost frame, this probably
- * is not noticeable by comparison, but it should be fixed. */
- if (h->short_ref_count) {
- if (prev) {
- av_image_copy(h->short_ref[0]->f.data,
- h->short_ref[0]->f.linesize,
- (const uint8_t **)prev->f.data,
- prev->f.linesize,
- h->avctx->pix_fmt,
- h->mb_width * 16,
- h->mb_height * 16);
- h->short_ref[0]->poc = prev->poc + 2;
- }
- h->short_ref[0]->frame_num = h->prev_frame_num;
- }
- }
-
- /* See if we have a decoded first field looking for a pair...
- * We're using that to see whether to continue decoding in that
- * frame, or to allocate a new one. */
- if (h0->first_field) {
- assert(h0->cur_pic_ptr);
- assert(h0->cur_pic_ptr->f.buf[0]);
- assert(h0->cur_pic_ptr->reference != DELAYED_PIC_REF);
-
- /* figure out if we have a complementary field pair */
- if (!FIELD_PICTURE(h) || h->picture_structure == last_pic_structure) {
- /* Previous field is unmatched. Don't display it, but let it
- * remain for reference if marked as such. */
- h0->cur_pic_ptr = NULL;
- h0->first_field = FIELD_PICTURE(h);
- } else {
- if (h0->cur_pic_ptr->frame_num != h->frame_num) {
- /* This and the previous field had different frame_nums.
- * Consider this field first in pair. Throw away previous
- * one except for reference purposes. */
- h0->first_field = 1;
- h0->cur_pic_ptr = NULL;
- } else {
- /* Second field in complementary pair */
- h0->first_field = 0;
- }
- }
- } else {
- /* Frame or first field in a potentially complementary pair */
- h0->first_field = FIELD_PICTURE(h);
- }
-
- if (!FIELD_PICTURE(h) || h0->first_field) {
- if (h264_frame_start(h) < 0) {
- h0->first_field = 0;
- return AVERROR_INVALIDDATA;
- }
- } else {
- release_unused_pictures(h, 0);
- }
- }
- if (h != h0 && (ret = clone_slice(h, h0)) < 0)
- return ret;
-
- h->cur_pic_ptr->frame_num = h->frame_num; // FIXME frame_num cleanup
-
- assert(h->mb_num == h->mb_width * h->mb_height);
- if (first_mb_in_slice << FIELD_OR_MBAFF_PICTURE(h) >= h->mb_num ||
- first_mb_in_slice >= h->mb_num) {
- av_log(h->avctx, AV_LOG_ERROR, "first_mb_in_slice overflow\n");
- return AVERROR_INVALIDDATA;
- }
- h->resync_mb_x = h->mb_x = first_mb_in_slice % h->mb_width;
- h->resync_mb_y = h->mb_y = (first_mb_in_slice / h->mb_width) <<
- FIELD_OR_MBAFF_PICTURE(h);
- if (h->picture_structure == PICT_BOTTOM_FIELD)
- h->resync_mb_y = h->mb_y = h->mb_y + 1;
- assert(h->mb_y < h->mb_height);
-
- if (h->picture_structure == PICT_FRAME) {
- h->curr_pic_num = h->frame_num;
- h->max_pic_num = 1 << h->sps.log2_max_frame_num;
- } else {
- h->curr_pic_num = 2 * h->frame_num + 1;
- h->max_pic_num = 1 << (h->sps.log2_max_frame_num + 1);
- }
-
- if (h->nal_unit_type == NAL_IDR_SLICE)
- get_ue_golomb(&h->gb); /* idr_pic_id */
-
- if (h->sps.poc_type == 0) {
- h->poc_lsb = get_bits(&h->gb, h->sps.log2_max_poc_lsb);
-
- if (h->pps.pic_order_present == 1 && h->picture_structure == PICT_FRAME)
- h->delta_poc_bottom = get_se_golomb(&h->gb);
- }
-
- if (h->sps.poc_type == 1 && !h->sps.delta_pic_order_always_zero_flag) {
- h->delta_poc[0] = get_se_golomb(&h->gb);
-
- if (h->pps.pic_order_present == 1 && h->picture_structure == PICT_FRAME)
- h->delta_poc[1] = get_se_golomb(&h->gb);
- }
-
- ff_init_poc(h, h->cur_pic_ptr->field_poc, &h->cur_pic_ptr->poc);
-
- if (h->pps.redundant_pic_cnt_present)
- h->redundant_pic_count = get_ue_golomb(&h->gb);
-
- ret = ff_set_ref_count(h);
- if (ret < 0)
- return ret;
- else if (ret == 1)
- default_ref_list_done = 0;
-
- if (!default_ref_list_done)
- ff_h264_fill_default_ref_list(h);
-
- if (h->slice_type_nos != AV_PICTURE_TYPE_I) {
- ret = ff_h264_decode_ref_pic_list_reordering(h);
- if (ret < 0) {
- h->ref_count[1] = h->ref_count[0] = 0;
- return ret;
- }
- }
-
- if ((h->pps.weighted_pred && h->slice_type_nos == AV_PICTURE_TYPE_P) ||
- (h->pps.weighted_bipred_idc == 1 &&
- h->slice_type_nos == AV_PICTURE_TYPE_B))
- ff_pred_weight_table(h);
- else if (h->pps.weighted_bipred_idc == 2 &&
- h->slice_type_nos == AV_PICTURE_TYPE_B) {
- implicit_weight_table(h, -1);
- } else {
- h->use_weight = 0;
- for (i = 0; i < 2; i++) {
- h->luma_weight_flag[i] = 0;
- h->chroma_weight_flag[i] = 0;
- }
- }
-
- // If frame-mt is enabled, only update mmco tables for the first slice
- // in a field. Subsequent slices can temporarily clobber h->mmco_index
- // or h->mmco, which will cause ref list mix-ups and decoding errors
- // further down the line. This may break decoding if the first slice is
- // corrupt, thus we only do this if frame-mt is enabled.
- if (h->nal_ref_idc) {
- ret = ff_h264_decode_ref_pic_marking(h0, &h->gb,
- !(h->avctx->active_thread_type & FF_THREAD_FRAME) ||
- h0->current_slice == 0);
- if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
- return AVERROR_INVALIDDATA;
- }
-
- if (FRAME_MBAFF(h)) {
- ff_h264_fill_mbaff_ref_list(h);
-
- if (h->pps.weighted_bipred_idc == 2 && h->slice_type_nos == AV_PICTURE_TYPE_B) {
- implicit_weight_table(h, 0);
- implicit_weight_table(h, 1);
- }
- }
-
- if (h->slice_type_nos == AV_PICTURE_TYPE_B && !h->direct_spatial_mv_pred)
- ff_h264_direct_dist_scale_factor(h);
- ff_h264_direct_ref_list_init(h);
-
- if (h->slice_type_nos != AV_PICTURE_TYPE_I && h->pps.cabac) {
- tmp = get_ue_golomb_31(&h->gb);
- if (tmp > 2) {
- av_log(h->avctx, AV_LOG_ERROR, "cabac_init_idc %u overflow\n", tmp);
- return AVERROR_INVALIDDATA;
- }
- h->cabac_init_idc = tmp;
- }
-
- h->last_qscale_diff = 0;
- tmp = h->pps.init_qp + get_se_golomb(&h->gb);
- if (tmp > 51 + 6 * (h->sps.bit_depth_luma - 8)) {
- av_log(h->avctx, AV_LOG_ERROR, "QP %u out of range\n", tmp);
- return AVERROR_INVALIDDATA;
- }
- h->qscale = tmp;
- h->chroma_qp[0] = get_chroma_qp(h, 0, h->qscale);
- h->chroma_qp[1] = get_chroma_qp(h, 1, h->qscale);
- // FIXME qscale / qp ... stuff
- if (h->slice_type == AV_PICTURE_TYPE_SP)
- get_bits1(&h->gb); /* sp_for_switch_flag */
- if (h->slice_type == AV_PICTURE_TYPE_SP ||
- h->slice_type == AV_PICTURE_TYPE_SI)
- get_se_golomb(&h->gb); /* slice_qs_delta */
-
- h->deblocking_filter = 1;
- h->slice_alpha_c0_offset = 0;
- h->slice_beta_offset = 0;
- if (h->pps.deblocking_filter_parameters_present) {
- tmp = get_ue_golomb_31(&h->gb);
- if (tmp > 2) {
- av_log(h->avctx, AV_LOG_ERROR,
- "deblocking_filter_idc %u out of range\n", tmp);
- return AVERROR_INVALIDDATA;
- }
- h->deblocking_filter = tmp;
- if (h->deblocking_filter < 2)
- h->deblocking_filter ^= 1; // 1<->0
-
- if (h->deblocking_filter) {
- h->slice_alpha_c0_offset = get_se_golomb(&h->gb) * 2;
- h->slice_beta_offset = get_se_golomb(&h->gb) * 2;
- if (h->slice_alpha_c0_offset > 12 ||
- h->slice_alpha_c0_offset < -12 ||
- h->slice_beta_offset > 12 ||
- h->slice_beta_offset < -12) {
- av_log(h->avctx, AV_LOG_ERROR,
- "deblocking filter parameters %d %d out of range\n",
- h->slice_alpha_c0_offset, h->slice_beta_offset);
- return AVERROR_INVALIDDATA;
- }
- }
- }
-
- if (h->avctx->skip_loop_filter >= AVDISCARD_ALL ||
- (h->avctx->skip_loop_filter >= AVDISCARD_NONKEY &&
- h->slice_type_nos != AV_PICTURE_TYPE_I) ||
- (h->avctx->skip_loop_filter >= AVDISCARD_BIDIR &&
- h->slice_type_nos == AV_PICTURE_TYPE_B) ||
- (h->avctx->skip_loop_filter >= AVDISCARD_NONREF &&
- h->nal_ref_idc == 0))
- h->deblocking_filter = 0;
-
- if (h->deblocking_filter == 1 && h0->max_contexts > 1) {
- if (h->avctx->flags2 & CODEC_FLAG2_FAST) {
- /* Cheat slightly for speed:
- * Do not bother to deblock across slices. */
- h->deblocking_filter = 2;
- } else {
- h0->max_contexts = 1;
- if (!h0->single_decode_warning) {
- av_log(h->avctx, AV_LOG_INFO,
- "Cannot parallelize deblocking type 1, decoding such frames in sequential order\n");
- h0->single_decode_warning = 1;
- }
- if (h != h0) {
- av_log(h->avctx, AV_LOG_ERROR,
- "Deblocking switched inside frame.\n");
- return 1;
- }
- }
- }
- h->qp_thresh = 15 -
- FFMIN(h->slice_alpha_c0_offset, h->slice_beta_offset) -
- FFMAX3(0,
- h->pps.chroma_qp_index_offset[0],
- h->pps.chroma_qp_index_offset[1]) +
- 6 * (h->sps.bit_depth_luma - 8);
-
- h0->last_slice_type = slice_type;
- h->slice_num = ++h0->current_slice;
- if (h->slice_num >= MAX_SLICES) {
- av_log(h->avctx, AV_LOG_ERROR,
- "Too many slices, increase MAX_SLICES and recompile\n");
- }
-
- for (j = 0; j < 2; j++) {
- int id_list[16];
- int *ref2frm = h->ref2frm[h->slice_num & (MAX_SLICES - 1)][j];
- for (i = 0; i < 16; i++) {
- id_list[i] = 60;
- if (j < h->list_count && i < h->ref_count[j] &&
- h->ref_list[j][i].f.buf[0]) {
- int k;
- AVBuffer *buf = h->ref_list[j][i].f.buf[0]->buffer;
- for (k = 0; k < h->short_ref_count; k++)
- if (h->short_ref[k]->f.buf[0]->buffer == buf) {
- id_list[i] = k;
- break;
- }
- for (k = 0; k < h->long_ref_count; k++)
- if (h->long_ref[k] && h->long_ref[k]->f.buf[0]->buffer == buf) {
- id_list[i] = h->short_ref_count + k;
- break;
- }
- }
- }
-
- ref2frm[0] =
- ref2frm[1] = -1;
- for (i = 0; i < 16; i++)
- ref2frm[i + 2] = 4 * id_list[i] + (h->ref_list[j][i].reference & 3);
- ref2frm[18 + 0] =
- ref2frm[18 + 1] = -1;
- for (i = 16; i < 48; i++)
- ref2frm[i + 4] = 4 * id_list[(i - 16) >> 1] +
- (h->ref_list[j][i].reference & 3);
- }
-
- if (h->avctx->debug & FF_DEBUG_PICT_INFO) {
- av_log(h->avctx, AV_LOG_DEBUG,
- "slice:%d %s mb:%d %c%s%s pps:%u frame:%d poc:%d/%d ref:%d/%d qp:%d loop:%d:%d:%d weight:%d%s %s\n",
- h->slice_num,
- (h->picture_structure == PICT_FRAME ? "F" : h->picture_structure == PICT_TOP_FIELD ? "T" : "B"),
- first_mb_in_slice,
- av_get_picture_type_char(h->slice_type),
- h->slice_type_fixed ? " fix" : "",
- h->nal_unit_type == NAL_IDR_SLICE ? " IDR" : "",
- pps_id, h->frame_num,
- h->cur_pic_ptr->field_poc[0],
- h->cur_pic_ptr->field_poc[1],
- h->ref_count[0], h->ref_count[1],
- h->qscale,
- h->deblocking_filter,
- h->slice_alpha_c0_offset, h->slice_beta_offset,
- h->use_weight,
- h->use_weight == 1 && h->use_weight_chroma ? "c" : "",
- h->slice_type == AV_PICTURE_TYPE_B ? (h->direct_spatial_mv_pred ? "SPAT" : "TEMP") : "");
- }
-
- return 0;
-}
-
-int ff_h264_get_slice_type(const H264Context *h)
-{
- switch (h->slice_type) {
- case AV_PICTURE_TYPE_P:
- return 0;
- case AV_PICTURE_TYPE_B:
- return 1;
- case AV_PICTURE_TYPE_I:
- return 2;
- case AV_PICTURE_TYPE_SP:
- return 3;
- case AV_PICTURE_TYPE_SI:
- return 4;
- default:
- return AVERROR_INVALIDDATA;
- }
-}
-
-static av_always_inline void fill_filter_caches_inter(H264Context *h,
- int mb_type, int top_xy,
- int left_xy[LEFT_MBS],
- int top_type,
- int left_type[LEFT_MBS],
- int mb_xy, int list)
-{
- int b_stride = h->b_stride;
- int16_t(*mv_dst)[2] = &h->mv_cache[list][scan8[0]];
- int8_t *ref_cache = &h->ref_cache[list][scan8[0]];
- if (IS_INTER(mb_type) || IS_DIRECT(mb_type)) {
- if (USES_LIST(top_type, list)) {
- const int b_xy = h->mb2b_xy[top_xy] + 3 * b_stride;
- const int b8_xy = 4 * top_xy + 2;
- int (*ref2frm)[64] = h->ref2frm[h->slice_table[top_xy] & (MAX_SLICES - 1)][0] + (MB_MBAFF(h) ? 20 : 2);
- AV_COPY128(mv_dst - 1 * 8, h->cur_pic.motion_val[list][b_xy + 0]);
- ref_cache[0 - 1 * 8] =
- ref_cache[1 - 1 * 8] = ref2frm[list][h->cur_pic.ref_index[list][b8_xy + 0]];
- ref_cache[2 - 1 * 8] =
- ref_cache[3 - 1 * 8] = ref2frm[list][h->cur_pic.ref_index[list][b8_xy + 1]];
- } else {
- AV_ZERO128(mv_dst - 1 * 8);
- AV_WN32A(&ref_cache[0 - 1 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
- }
-
- if (!IS_INTERLACED(mb_type ^ left_type[LTOP])) {
- if (USES_LIST(left_type[LTOP], list)) {
- const int b_xy = h->mb2b_xy[left_xy[LTOP]] + 3;
- const int b8_xy = 4 * left_xy[LTOP] + 1;
- int (*ref2frm)[64] = h->ref2frm[h->slice_table[left_xy[LTOP]] & (MAX_SLICES - 1)][0] + (MB_MBAFF(h) ? 20 : 2);
- AV_COPY32(mv_dst - 1 + 0, h->cur_pic.motion_val[list][b_xy + b_stride * 0]);
- AV_COPY32(mv_dst - 1 + 8, h->cur_pic.motion_val[list][b_xy + b_stride * 1]);
- AV_COPY32(mv_dst - 1 + 16, h->cur_pic.motion_val[list][b_xy + b_stride * 2]);
- AV_COPY32(mv_dst - 1 + 24, h->cur_pic.motion_val[list][b_xy + b_stride * 3]);
- ref_cache[-1 + 0] =
- ref_cache[-1 + 8] = ref2frm[list][h->cur_pic.ref_index[list][b8_xy + 2 * 0]];
- ref_cache[-1 + 16] =
- ref_cache[-1 + 24] = ref2frm[list][h->cur_pic.ref_index[list][b8_xy + 2 * 1]];
- } else {
- AV_ZERO32(mv_dst - 1 + 0);
- AV_ZERO32(mv_dst - 1 + 8);
- AV_ZERO32(mv_dst - 1 + 16);
- AV_ZERO32(mv_dst - 1 + 24);
- ref_cache[-1 + 0] =
- ref_cache[-1 + 8] =
- ref_cache[-1 + 16] =
- ref_cache[-1 + 24] = LIST_NOT_USED;
- }
- }
- }
-
- if (!USES_LIST(mb_type, list)) {
- fill_rectangle(mv_dst, 4, 4, 8, pack16to32(0, 0), 4);
- AV_WN32A(&ref_cache[0 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
- AV_WN32A(&ref_cache[1 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
- AV_WN32A(&ref_cache[2 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
- AV_WN32A(&ref_cache[3 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
- return;
- }
-
- {
- int8_t *ref = &h->cur_pic.ref_index[list][4 * mb_xy];
- int (*ref2frm)[64] = h->ref2frm[h->slice_num & (MAX_SLICES - 1)][0] + (MB_MBAFF(h) ? 20 : 2);
- uint32_t ref01 = (pack16to32(ref2frm[list][ref[0]], ref2frm[list][ref[1]]) & 0x00FF00FF) * 0x0101;
- uint32_t ref23 = (pack16to32(ref2frm[list][ref[2]], ref2frm[list][ref[3]]) & 0x00FF00FF) * 0x0101;
- AV_WN32A(&ref_cache[0 * 8], ref01);
- AV_WN32A(&ref_cache[1 * 8], ref01);
- AV_WN32A(&ref_cache[2 * 8], ref23);
- AV_WN32A(&ref_cache[3 * 8], ref23);
- }
-
- {
- int16_t(*mv_src)[2] = &h->cur_pic.motion_val[list][4 * h->mb_x + 4 * h->mb_y * b_stride];
- AV_COPY128(mv_dst + 8 * 0, mv_src + 0 * b_stride);
- AV_COPY128(mv_dst + 8 * 1, mv_src + 1 * b_stride);
- AV_COPY128(mv_dst + 8 * 2, mv_src + 2 * b_stride);
- AV_COPY128(mv_dst + 8 * 3, mv_src + 3 * b_stride);
- }
-}
-
-/**
- *
- * @return non zero if the loop filter can be skipped
- */
-static int fill_filter_caches(H264Context *h, int mb_type)
-{
- const int mb_xy = h->mb_xy;
- int top_xy, left_xy[LEFT_MBS];
- int top_type, left_type[LEFT_MBS];
- uint8_t *nnz;
- uint8_t *nnz_cache;
-
- top_xy = mb_xy - (h->mb_stride << MB_FIELD(h));
-
- /* Wow, what a mess, why didn't they simplify the interlacing & intra
- * stuff, I can't imagine that these complex rules are worth it. */
-
- left_xy[LBOT] = left_xy[LTOP] = mb_xy - 1;
- if (FRAME_MBAFF(h)) {
- const int left_mb_field_flag = IS_INTERLACED(h->cur_pic.mb_type[mb_xy - 1]);
- const int curr_mb_field_flag = IS_INTERLACED(mb_type);
- if (h->mb_y & 1) {
- if (left_mb_field_flag != curr_mb_field_flag)
- left_xy[LTOP] -= h->mb_stride;
- } else {
- if (curr_mb_field_flag)
- top_xy += h->mb_stride &
- (((h->cur_pic.mb_type[top_xy] >> 7) & 1) - 1);
- if (left_mb_field_flag != curr_mb_field_flag)
- left_xy[LBOT] += h->mb_stride;
- }
- }
-
- h->top_mb_xy = top_xy;
- h->left_mb_xy[LTOP] = left_xy[LTOP];
- h->left_mb_xy[LBOT] = left_xy[LBOT];
- {
- /* For sufficiently low qp, filtering wouldn't do anything.
- * This is a conservative estimate: could also check beta_offset
- * and more accurate chroma_qp. */
- int qp_thresh = h->qp_thresh; // FIXME strictly we should store qp_thresh for each mb of a slice
- int qp = h->cur_pic.qscale_table[mb_xy];
- if (qp <= qp_thresh &&
- (left_xy[LTOP] < 0 ||
- ((qp + h->cur_pic.qscale_table[left_xy[LTOP]] + 1) >> 1) <= qp_thresh) &&
- (top_xy < 0 ||
- ((qp + h->cur_pic.qscale_table[top_xy] + 1) >> 1) <= qp_thresh)) {
- if (!FRAME_MBAFF(h))
- return 1;
- if ((left_xy[LTOP] < 0 ||
- ((qp + h->cur_pic.qscale_table[left_xy[LBOT]] + 1) >> 1) <= qp_thresh) &&
- (top_xy < h->mb_stride ||
- ((qp + h->cur_pic.qscale_table[top_xy - h->mb_stride] + 1) >> 1) <= qp_thresh))
- return 1;
- }
- }
-
- top_type = h->cur_pic.mb_type[top_xy];
- left_type[LTOP] = h->cur_pic.mb_type[left_xy[LTOP]];
- left_type[LBOT] = h->cur_pic.mb_type[left_xy[LBOT]];
- if (h->deblocking_filter == 2) {
- if (h->slice_table[top_xy] != h->slice_num)
- top_type = 0;
- if (h->slice_table[left_xy[LBOT]] != h->slice_num)
- left_type[LTOP] = left_type[LBOT] = 0;
- } else {
- if (h->slice_table[top_xy] == 0xFFFF)
- top_type = 0;
- if (h->slice_table[left_xy[LBOT]] == 0xFFFF)
- left_type[LTOP] = left_type[LBOT] = 0;
- }
- h->top_type = top_type;
- h->left_type[LTOP] = left_type[LTOP];
- h->left_type[LBOT] = left_type[LBOT];
-
- if (IS_INTRA(mb_type))
- return 0;
-
- fill_filter_caches_inter(h, mb_type, top_xy, left_xy,
- top_type, left_type, mb_xy, 0);
- if (h->list_count == 2)
- fill_filter_caches_inter(h, mb_type, top_xy, left_xy,
- top_type, left_type, mb_xy, 1);
-
- nnz = h->non_zero_count[mb_xy];
- nnz_cache = h->non_zero_count_cache;
- AV_COPY32(&nnz_cache[4 + 8 * 1], &nnz[0]);
- AV_COPY32(&nnz_cache[4 + 8 * 2], &nnz[4]);
- AV_COPY32(&nnz_cache[4 + 8 * 3], &nnz[8]);
- AV_COPY32(&nnz_cache[4 + 8 * 4], &nnz[12]);
- h->cbp = h->cbp_table[mb_xy];
-
- if (top_type) {
- nnz = h->non_zero_count[top_xy];
- AV_COPY32(&nnz_cache[4 + 8 * 0], &nnz[3 * 4]);
- }
-
- if (left_type[LTOP]) {
- nnz = h->non_zero_count[left_xy[LTOP]];
- nnz_cache[3 + 8 * 1] = nnz[3 + 0 * 4];
- nnz_cache[3 + 8 * 2] = nnz[3 + 1 * 4];
- nnz_cache[3 + 8 * 3] = nnz[3 + 2 * 4];
- nnz_cache[3 + 8 * 4] = nnz[3 + 3 * 4];
- }
-
- /* CAVLC 8x8dct requires NNZ values for residual decoding that differ
- * from what the loop filter needs */
- if (!CABAC(h) && h->pps.transform_8x8_mode) {
- if (IS_8x8DCT(top_type)) {
- nnz_cache[4 + 8 * 0] =
- nnz_cache[5 + 8 * 0] = (h->cbp_table[top_xy] & 0x4000) >> 12;
- nnz_cache[6 + 8 * 0] =
- nnz_cache[7 + 8 * 0] = (h->cbp_table[top_xy] & 0x8000) >> 12;
- }
- if (IS_8x8DCT(left_type[LTOP])) {
- nnz_cache[3 + 8 * 1] =
- nnz_cache[3 + 8 * 2] = (h->cbp_table[left_xy[LTOP]] & 0x2000) >> 12; // FIXME check MBAFF
- }
- if (IS_8x8DCT(left_type[LBOT])) {
- nnz_cache[3 + 8 * 3] =
- nnz_cache[3 + 8 * 4] = (h->cbp_table[left_xy[LBOT]] & 0x8000) >> 12; // FIXME check MBAFF
- }
-
- if (IS_8x8DCT(mb_type)) {
- nnz_cache[scan8[0]] =
- nnz_cache[scan8[1]] =
- nnz_cache[scan8[2]] =
- nnz_cache[scan8[3]] = (h->cbp & 0x1000) >> 12;
-
- nnz_cache[scan8[0 + 4]] =
- nnz_cache[scan8[1 + 4]] =
- nnz_cache[scan8[2 + 4]] =
- nnz_cache[scan8[3 + 4]] = (h->cbp & 0x2000) >> 12;
-
- nnz_cache[scan8[0 + 8]] =
- nnz_cache[scan8[1 + 8]] =
- nnz_cache[scan8[2 + 8]] =
- nnz_cache[scan8[3 + 8]] = (h->cbp & 0x4000) >> 12;
-
- nnz_cache[scan8[0 + 12]] =
- nnz_cache[scan8[1 + 12]] =
- nnz_cache[scan8[2 + 12]] =
- nnz_cache[scan8[3 + 12]] = (h->cbp & 0x8000) >> 12;
- }
- }
-
- return 0;
-}
-
-static void loop_filter(H264Context *h, int start_x, int end_x)
-{
- uint8_t *dest_y, *dest_cb, *dest_cr;
- int linesize, uvlinesize, mb_x, mb_y;
- const int end_mb_y = h->mb_y + FRAME_MBAFF(h);
- const int old_slice_type = h->slice_type;
- const int pixel_shift = h->pixel_shift;
- const int block_h = 16 >> h->chroma_y_shift;
-
- if (h->deblocking_filter) {
- for (mb_x = start_x; mb_x < end_x; mb_x++)
- for (mb_y = end_mb_y - FRAME_MBAFF(h); mb_y <= end_mb_y; mb_y++) {
- int mb_xy, mb_type;
- mb_xy = h->mb_xy = mb_x + mb_y * h->mb_stride;
- h->slice_num = h->slice_table[mb_xy];
- mb_type = h->cur_pic.mb_type[mb_xy];
- h->list_count = h->list_counts[mb_xy];
-
- if (FRAME_MBAFF(h))
- h->mb_mbaff =
- h->mb_field_decoding_flag = !!IS_INTERLACED(mb_type);
-
- h->mb_x = mb_x;
- h->mb_y = mb_y;
- dest_y = h->cur_pic.f.data[0] +
- ((mb_x << pixel_shift) + mb_y * h->linesize) * 16;
- dest_cb = h->cur_pic.f.data[1] +
- (mb_x << pixel_shift) * (8 << CHROMA444(h)) +
- mb_y * h->uvlinesize * block_h;
- dest_cr = h->cur_pic.f.data[2] +
- (mb_x << pixel_shift) * (8 << CHROMA444(h)) +
- mb_y * h->uvlinesize * block_h;
- // FIXME simplify above
-
- if (MB_FIELD(h)) {
- linesize = h->mb_linesize = h->linesize * 2;
- uvlinesize = h->mb_uvlinesize = h->uvlinesize * 2;
- if (mb_y & 1) { // FIXME move out of this function?
- dest_y -= h->linesize * 15;
- dest_cb -= h->uvlinesize * (block_h - 1);
- dest_cr -= h->uvlinesize * (block_h - 1);
- }
- } else {
- linesize = h->mb_linesize = h->linesize;
- uvlinesize = h->mb_uvlinesize = h->uvlinesize;
- }
- backup_mb_border(h, dest_y, dest_cb, dest_cr, linesize,
- uvlinesize, 0);
- if (fill_filter_caches(h, mb_type))
- continue;
- h->chroma_qp[0] = get_chroma_qp(h, 0, h->cur_pic.qscale_table[mb_xy]);
- h->chroma_qp[1] = get_chroma_qp(h, 1, h->cur_pic.qscale_table[mb_xy]);
-
- if (FRAME_MBAFF(h)) {
- ff_h264_filter_mb(h, mb_x, mb_y, dest_y, dest_cb, dest_cr,
- linesize, uvlinesize);
- } else {
- ff_h264_filter_mb_fast(h, mb_x, mb_y, dest_y, dest_cb,
- dest_cr, linesize, uvlinesize);
- }
- }
- }
- h->slice_type = old_slice_type;
- h->mb_x = end_x;
- h->mb_y = end_mb_y - FRAME_MBAFF(h);
- h->chroma_qp[0] = get_chroma_qp(h, 0, h->qscale);
- h->chroma_qp[1] = get_chroma_qp(h, 1, h->qscale);
-}
-
-static void predict_field_decoding_flag(H264Context *h)
-{
- const int mb_xy = h->mb_x + h->mb_y * h->mb_stride;
- int mb_type = (h->slice_table[mb_xy - 1] == h->slice_num) ?
- h->cur_pic.mb_type[mb_xy - 1] :
- (h->slice_table[mb_xy - h->mb_stride] == h->slice_num) ?
- h->cur_pic.mb_type[mb_xy - h->mb_stride] : 0;
- h->mb_mbaff = h->mb_field_decoding_flag = IS_INTERLACED(mb_type) ? 1 : 0;
-}
-
-/**
- * Draw edges and report progress for the last MB row.
- */
-static void decode_finish_row(H264Context *h)
-{
- int top = 16 * (h->mb_y >> FIELD_PICTURE(h));
- int pic_height = 16 * h->mb_height >> FIELD_PICTURE(h);
- int height = 16 << FRAME_MBAFF(h);
- int deblock_border = (16 + 4) << FRAME_MBAFF(h);
-
- if (h->deblocking_filter) {
- if ((top + height) >= pic_height)
- height += deblock_border;
- top -= deblock_border;
- }
-
- if (top >= pic_height || (top + height) < 0)
- return;
-
- height = FFMIN(height, pic_height - top);
- if (top < 0) {
- height = top + height;
- top = 0;
- }
-
- ff_h264_draw_horiz_band(h, top, height);
-
- if (h->droppable)
- return;
-
- ff_thread_report_progress(&h->cur_pic_ptr->tf, top + height - 1,
- h->picture_structure == PICT_BOTTOM_FIELD);
-}
-
-static void er_add_slice(H264Context *h, int startx, int starty,
- int endx, int endy, int status)
-{
-#if CONFIG_ERROR_RESILIENCE
- ERContext *er = &h->er;
-
- er->ref_count = h->ref_count[0];
- ff_er_add_slice(er, startx, starty, endx, endy, status);
-#endif
-}
-
-static int decode_slice(struct AVCodecContext *avctx, void *arg)
-{
- H264Context *h = *(void **)arg;
- int lf_x_start = h->mb_x;
-
- h->mb_skip_run = -1;
-
- h->is_complex = FRAME_MBAFF(h) || h->picture_structure != PICT_FRAME ||
- avctx->codec_id != AV_CODEC_ID_H264 ||
- (CONFIG_GRAY && (h->flags & CODEC_FLAG_GRAY));
-
- if (h->pps.cabac) {
- /* realign */
- align_get_bits(&h->gb);
-
- /* init cabac */
- ff_init_cabac_decoder(&h->cabac,
- h->gb.buffer + get_bits_count(&h->gb) / 8,
- (get_bits_left(&h->gb) + 7) / 8);
-
- ff_h264_init_cabac_states(h);
-
- for (;;) {
- // START_TIMER
- int ret = ff_h264_decode_mb_cabac(h);
- int eos;
- // STOP_TIMER("decode_mb_cabac")
-
- if (ret >= 0)
- ff_h264_hl_decode_mb(h);
-
- // FIXME optimal? or let mb_decode decode 16x32 ?
- if (ret >= 0 && FRAME_MBAFF(h)) {
- h->mb_y++;
-
- ret = ff_h264_decode_mb_cabac(h);
-
- if (ret >= 0)
- ff_h264_hl_decode_mb(h);
- h->mb_y--;
- }
- eos = get_cabac_terminate(&h->cabac);
-
- if ((h->workaround_bugs & FF_BUG_TRUNCATED) &&
- h->cabac.bytestream > h->cabac.bytestream_end + 2) {
- er_add_slice(h, h->resync_mb_x, h->resync_mb_y, h->mb_x - 1,
- h->mb_y, ER_MB_END);
- if (h->mb_x >= lf_x_start)
- loop_filter(h, lf_x_start, h->mb_x + 1);
- return 0;
- }
- if (ret < 0 || h->cabac.bytestream > h->cabac.bytestream_end + 2) {
- av_log(h->avctx, AV_LOG_ERROR,
- "error while decoding MB %d %d, bytestream %td\n",
- h->mb_x, h->mb_y,
- h->cabac.bytestream_end - h->cabac.bytestream);
- er_add_slice(h, h->resync_mb_x, h->resync_mb_y, h->mb_x,
- h->mb_y, ER_MB_ERROR);
- return AVERROR_INVALIDDATA;
- }
-
- if (++h->mb_x >= h->mb_width) {
- loop_filter(h, lf_x_start, h->mb_x);
- h->mb_x = lf_x_start = 0;
- decode_finish_row(h);
- ++h->mb_y;
- if (FIELD_OR_MBAFF_PICTURE(h)) {
- ++h->mb_y;
- if (FRAME_MBAFF(h) && h->mb_y < h->mb_height)
- predict_field_decoding_flag(h);
- }
- }
-
- if (eos || h->mb_y >= h->mb_height) {
- tprintf(h->avctx, "slice end %d %d\n",
- get_bits_count(&h->gb), h->gb.size_in_bits);
- er_add_slice(h, h->resync_mb_x, h->resync_mb_y, h->mb_x - 1,
- h->mb_y, ER_MB_END);
- if (h->mb_x > lf_x_start)
- loop_filter(h, lf_x_start, h->mb_x);
- return 0;
- }
- }
- } else {
- for (;;) {
- int ret = ff_h264_decode_mb_cavlc(h);
-
- if (ret >= 0)
- ff_h264_hl_decode_mb(h);
-
- // FIXME optimal? or let mb_decode decode 16x32 ?
- if (ret >= 0 && FRAME_MBAFF(h)) {
- h->mb_y++;
- ret = ff_h264_decode_mb_cavlc(h);
-
- if (ret >= 0)
- ff_h264_hl_decode_mb(h);
- h->mb_y--;
- }
-
- if (ret < 0) {
- av_log(h->avctx, AV_LOG_ERROR,
- "error while decoding MB %d %d\n", h->mb_x, h->mb_y);
- er_add_slice(h, h->resync_mb_x, h->resync_mb_y, h->mb_x,
- h->mb_y, ER_MB_ERROR);
- return ret;
- }
-
- if (++h->mb_x >= h->mb_width) {
- loop_filter(h, lf_x_start, h->mb_x);
- h->mb_x = lf_x_start = 0;
- decode_finish_row(h);
- ++h->mb_y;
- if (FIELD_OR_MBAFF_PICTURE(h)) {
- ++h->mb_y;
- if (FRAME_MBAFF(h) && h->mb_y < h->mb_height)
- predict_field_decoding_flag(h);
- }
- if (h->mb_y >= h->mb_height) {
- tprintf(h->avctx, "slice end %d %d\n",
- get_bits_count(&h->gb), h->gb.size_in_bits);
-
- if (get_bits_left(&h->gb) == 0) {
- er_add_slice(h, h->resync_mb_x, h->resync_mb_y,
- h->mb_x - 1, h->mb_y,
- ER_MB_END);
-
- return 0;
- } else {
- er_add_slice(h, h->resync_mb_x, h->resync_mb_y,
- h->mb_x - 1, h->mb_y,
- ER_MB_END);
-
- return AVERROR_INVALIDDATA;
- }
- }
- }
-
- if (get_bits_left(&h->gb) <= 0 && h->mb_skip_run <= 0) {
- tprintf(h->avctx, "slice end %d %d\n",
- get_bits_count(&h->gb), h->gb.size_in_bits);
-
- if (get_bits_left(&h->gb) == 0) {
- er_add_slice(h, h->resync_mb_x, h->resync_mb_y,
- h->mb_x - 1, h->mb_y,
- ER_MB_END);
- if (h->mb_x > lf_x_start)
- loop_filter(h, lf_x_start, h->mb_x);
-
- return 0;
- } else {
- er_add_slice(h, h->resync_mb_x, h->resync_mb_y, h->mb_x,
- h->mb_y, ER_MB_ERROR);
-
- return AVERROR_INVALIDDATA;
- }
- }
- }
- }
-}
-
-/**
- * Call decode_slice() for each context.
- *
- * @param h h264 master context
- * @param context_count number of contexts to execute
- */
-static int execute_decode_slices(H264Context *h, unsigned context_count)
-{
- AVCodecContext *const avctx = h->avctx;
- H264Context *hx;
- int i;
-
- if (h->mb_y >= h->mb_height) {
- av_log(h->avctx, AV_LOG_ERROR,
- "Input contains more MB rows than the frame height.\n");
- return AVERROR_INVALIDDATA;
- }
-
- if (h->avctx->hwaccel)
- return 0;
- if (context_count == 1) {
- return decode_slice(avctx, &h);
- } else {
- for (i = 1; i < context_count; i++) {
- hx = h->thread_context[i];
- hx->er.error_count = 0;
- }
-
- avctx->execute(avctx, decode_slice, h->thread_context,
- NULL, context_count, sizeof(void *));
-
- /* pull back stuff from slices to master context */
- hx = h->thread_context[context_count - 1];
- h->mb_x = hx->mb_x;
- h->mb_y = hx->mb_y;
- h->droppable = hx->droppable;
- h->picture_structure = hx->picture_structure;
- for (i = 1; i < context_count; i++)
- h->er.error_count += h->thread_context[i]->er.error_count;
- }
-
- return 0;
-}
-
static int decode_nal_units(H264Context *h, const uint8_t *buf, int buf_size,
int parse_extradata)
{
@@ -3929,7 +1436,7 @@ again:
hx->inter_gb_ptr = &hx->gb;
hx->data_partitioning = 0;
- if ((err = decode_slice_header(hx, h)))
+ if ((err = ff_h264_decode_slice_header(hx, h)))
break;
if (h->sei_recovery_frame_cnt >= 0 && h->recovery_frame < 0) {
@@ -3991,7 +1498,7 @@ again:
hx->intra_gb_ptr =
hx->inter_gb_ptr = NULL;
- if ((err = decode_slice_header(hx, h)) < 0) {
+ if ((err = ff_h264_decode_slice_header(hx, h)) < 0) {
/* make sure data_partitioning is cleared if it was set
* before, so we don't try decoding a slice without a valid
* slice header later */
@@ -4036,7 +1543,7 @@ again:
ff_h264_decode_seq_parameter_set(h);
}
- ret = h264_set_parameter_from_sps(h);
+ ret = ff_h264_set_parameter_from_sps(h);
if (ret < 0)
goto end;
@@ -4060,7 +1567,7 @@ again:
}
if (context_count == h->max_contexts) {
- execute_decode_slices(h, context_count);
+ ff_h264_execute_decode_slices(h, context_count);
context_count = 0;
}
@@ -4080,7 +1587,7 @@ again:
}
}
if (context_count)
- execute_decode_slices(h, context_count);
+ ff_h264_execute_decode_slices(h, context_count);
end:
/* clean up */
@@ -4195,7 +1702,7 @@ out:
if (avctx->flags2 & CODEC_FLAG2_CHUNKS)
decode_postinit(h, 1);
- field_end(h, 0);
+ ff_h264_field_end(h, 0);
*got_frame = 0;
if (h->next_output_pic && ((avctx->flags & CODEC_FLAG_OUTPUT_CORRUPT) ||
@@ -4219,7 +1726,7 @@ av_cold void ff_h264_free_context(H264Context *h)
{
int i;
- free_tables(h, 1); // FIXME cleanup init stuff perhaps
+ ff_h264_free_tables(h, 1); // FIXME cleanup init stuff perhaps
for (i = 0; i < MAX_SPS_COUNT; i++)
av_freep(h->sps_buffers + i);
@@ -4234,7 +1741,7 @@ static av_cold int h264_decode_end(AVCodecContext *avctx)
ff_h264_free_context(h);
- unref_picture(h, &h->cur_pic);
+ ff_h264_unref_picture(h, &h->cur_pic);
return 0;
}
@@ -4270,6 +1777,6 @@ AVCodec ff_h264_decoder = {
CODEC_CAP_FRAME_THREADS,
.flush = flush_dpb,
.init_thread_copy = ONLY_IF_THREADS_ENABLED(decode_init_thread_copy),
- .update_thread_context = ONLY_IF_THREADS_ENABLED(decode_update_thread_context),
+ .update_thread_context = ONLY_IF_THREADS_ENABLED(ff_h264_update_thread_context),
.profiles = NULL_IF_CONFIG_SMALL(profiles),
};
diff --git a/libavcodec/h264.h b/libavcodec/h264.h
index db14e0810b..e259d0d7aa 100644
--- a/libavcodec/h264.h
+++ b/libavcodec/h264.h
@@ -802,6 +802,8 @@ int ff_h264_decode_mb_cabac(H264Context *h);
void ff_h264_init_cabac_states(H264Context *h);
+void h264_init_dequant_tables(H264Context *h);
+
void ff_h264_direct_dist_scale_factor(H264Context *const h);
void ff_h264_direct_ref_list_init(H264Context *const h);
void ff_h264_pred_direct_motion(H264Context *const h, int *mb_type);
@@ -1020,9 +1022,26 @@ static av_always_inline int get_dct8x8_allowed(H264Context *h)
0x0001000100010001ULL));
}
+int ff_h264_field_end(H264Context *h, int in_setup);
+
+int ff_h264_ref_picture(H264Context *h, H264Picture *dst, H264Picture *src);
+void ff_h264_unref_picture(H264Context *h, H264Picture *pic);
+
+int ff_h264_context_init(H264Context *h);
+int ff_h264_set_parameter_from_sps(H264Context *h);
+
void ff_h264_draw_horiz_band(H264Context *h, int y, int height);
int ff_init_poc(H264Context *h, int pic_field_poc[2], int *pic_poc);
int ff_pred_weight_table(H264Context *h);
int ff_set_ref_count(H264Context *h);
+int ff_h264_decode_slice_header(H264Context *h, H264Context *h0);
+int ff_h264_execute_decode_slices(H264Context *h, unsigned context_count);
+int ff_h264_update_thread_context(AVCodecContext *dst,
+ const AVCodecContext *src);
+
+void ff_h264_flush_change(H264Context *h);
+
+void ff_h264_free_tables(H264Context *h, int free_rbsp);
+
#endif /* AVCODEC_H264_H */
diff --git a/libavcodec/h264_picture.c b/libavcodec/h264_picture.c
new file mode 100644
index 0000000000..d7e6ce5e8d
--- /dev/null
+++ b/libavcodec/h264_picture.c
@@ -0,0 +1,200 @@
+/*
+ * H.26L/H.264/AVC/JVT/14496-10/... decoder
+ * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * H.264 / AVC / MPEG4 part10 codec.
+ * @author Michael Niedermayer <michaelni@gmx.at>
+ */
+
+#include "libavutil/avassert.h"
+#include "libavutil/imgutils.h"
+#include "libavutil/timer.h"
+#include "internal.h"
+#include "cabac.h"
+#include "cabac_functions.h"
+#include "dsputil.h"
+#include "error_resilience.h"
+#include "avcodec.h"
+#include "h264.h"
+#include "h264data.h"
+#include "h264chroma.h"
+#include "h264_mvpred.h"
+#include "golomb.h"
+#include "mathops.h"
+#include "mpegutils.h"
+#include "rectangle.h"
+#include "thread.h"
+
+void ff_h264_unref_picture(H264Context *h, H264Picture *pic)
+{
+ int off = offsetof(H264Picture, tf) + sizeof(pic->tf);
+ int i;
+
+ if (!pic->f.buf[0])
+ return;
+
+ ff_thread_release_buffer(h->avctx, &pic->tf);
+ av_buffer_unref(&pic->hwaccel_priv_buf);
+
+ av_buffer_unref(&pic->qscale_table_buf);
+ av_buffer_unref(&pic->mb_type_buf);
+ for (i = 0; i < 2; i++) {
+ av_buffer_unref(&pic->motion_val_buf[i]);
+ av_buffer_unref(&pic->ref_index_buf[i]);
+ }
+
+ memset((uint8_t*)pic + off, 0, sizeof(*pic) - off);
+}
+
+int ff_h264_ref_picture(H264Context *h, H264Picture *dst, H264Picture *src)
+{
+ int ret, i;
+
+ av_assert0(!dst->f.buf[0]);
+ av_assert0(src->f.buf[0]);
+
+ src->tf.f = &src->f;
+ dst->tf.f = &dst->f;
+ ret = ff_thread_ref_frame(&dst->tf, &src->tf);
+ if (ret < 0)
+ goto fail;
+
+ dst->qscale_table_buf = av_buffer_ref(src->qscale_table_buf);
+ dst->mb_type_buf = av_buffer_ref(src->mb_type_buf);
+ if (!dst->qscale_table_buf || !dst->mb_type_buf)
+ goto fail;
+ dst->qscale_table = src->qscale_table;
+ dst->mb_type = src->mb_type;
+
+ for (i = 0; i < 2; i++) {
+ dst->motion_val_buf[i] = av_buffer_ref(src->motion_val_buf[i]);
+ dst->ref_index_buf[i] = av_buffer_ref(src->ref_index_buf[i]);
+ if (!dst->motion_val_buf[i] || !dst->ref_index_buf[i])
+ goto fail;
+ dst->motion_val[i] = src->motion_val[i];
+ dst->ref_index[i] = src->ref_index[i];
+ }
+
+ if (src->hwaccel_picture_private) {
+ dst->hwaccel_priv_buf = av_buffer_ref(src->hwaccel_priv_buf);
+ if (!dst->hwaccel_priv_buf)
+ goto fail;
+ dst->hwaccel_picture_private = dst->hwaccel_priv_buf->data;
+ }
+
+ for (i = 0; i < 2; i++)
+ dst->field_poc[i] = src->field_poc[i];
+
+ memcpy(dst->ref_poc, src->ref_poc, sizeof(src->ref_poc));
+ memcpy(dst->ref_count, src->ref_count, sizeof(src->ref_count));
+
+ dst->poc = src->poc;
+ dst->frame_num = src->frame_num;
+ dst->mmco_reset = src->mmco_reset;
+ dst->pic_id = src->pic_id;
+ dst->long_ref = src->long_ref;
+ dst->mbaff = src->mbaff;
+ dst->field_picture = src->field_picture;
+ dst->needs_realloc = src->needs_realloc;
+ dst->reference = src->reference;
+ dst->recovered = src->recovered;
+
+ return 0;
+fail:
+ ff_h264_unref_picture(h, dst);
+ return ret;
+}
+
+#if CONFIG_ERROR_RESILIENCE
+static void h264_set_erpic(ERPicture *dst, H264Picture *src)
+{
+ int i;
+
+ if (!src)
+ return;
+
+ dst->f = &src->f;
+ dst->tf = &src->tf;
+
+ for (i = 0; i < 2; i++) {
+ dst->motion_val[i] = src->motion_val[i];
+ dst->ref_index[i] = src->ref_index[i];
+ }
+
+ dst->mb_type = src->mb_type;
+ dst->field_picture = src->field_picture;
+}
+#endif /* CONFIG_ERROR_RESILIENCE */
+
+int ff_h264_field_end(H264Context *h, int in_setup)
+{
+ AVCodecContext *const avctx = h->avctx;
+ int err = 0;
+ h->mb_y = 0;
+
+ if (!in_setup && !h->droppable)
+ ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
+ h->picture_structure == PICT_BOTTOM_FIELD);
+
+ if (in_setup || !(avctx->active_thread_type & FF_THREAD_FRAME)) {
+ if (!h->droppable) {
+ err = ff_h264_execute_ref_pic_marking(h, h->mmco, h->mmco_index);
+ h->prev_poc_msb = h->poc_msb;
+ h->prev_poc_lsb = h->poc_lsb;
+ }
+ h->prev_frame_num_offset = h->frame_num_offset;
+ h->prev_frame_num = h->frame_num;
+ h->outputed_poc = h->next_outputed_poc;
+ }
+
+ if (avctx->hwaccel) {
+ if (avctx->hwaccel->end_frame(avctx) < 0)
+ av_log(avctx, AV_LOG_ERROR,
+ "hardware accelerator failed to decode picture\n");
+ }
+
+ /*
+ * FIXME: Error handling code does not seem to support interlaced
+ * when slices span multiple rows
+ * The ff_er_add_slice calls don't work right for bottom
+ * fields; they cause massive erroneous error concealing
+ * Error marking covers both fields (top and bottom).
+ * This causes a mismatched s->error_count
+ * and a bad error table. Further, the error count goes to
+ * INT_MAX when called for bottom field, because mb_y is
+ * past end by one (callers fault) and resync_mb_y != 0
+ * causes problems for the first MB line, too.
+ */
+ if (CONFIG_ERROR_RESILIENCE && !FIELD_PICTURE(h)) {
+ h264_set_erpic(&h->er.cur_pic, h->cur_pic_ptr);
+ h264_set_erpic(&h->er.last_pic,
+ h->ref_count[0] ? &h->ref_list[0][0] : NULL);
+ h264_set_erpic(&h->er.next_pic,
+ h->ref_count[1] ? &h->ref_list[1][0] : NULL);
+ ff_er_frame_end(&h->er);
+ }
+ emms_c();
+
+ h->current_slice = 0;
+
+ return err;
+}
diff --git a/libavcodec/h264_slice.c b/libavcodec/h264_slice.c
new file mode 100644
index 0000000000..897c8ebdbb
--- /dev/null
+++ b/libavcodec/h264_slice.c
@@ -0,0 +1,2384 @@
+/*
+ * H.26L/H.264/AVC/JVT/14496-10/... decoder
+ * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of Libav.
+ *
+ * Libav is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * H.264 / AVC / MPEG4 part10 codec.
+ * @author Michael Niedermayer <michaelni@gmx.at>
+ */
+
+#include "libavutil/avassert.h"
+#include "libavutil/imgutils.h"
+#include "libavutil/timer.h"
+#include "internal.h"
+#include "cabac.h"
+#include "cabac_functions.h"
+#include "dsputil.h"
+#include "error_resilience.h"
+#include "avcodec.h"
+#include "h264.h"
+#include "h264data.h"
+#include "h264chroma.h"
+#include "h264_mvpred.h"
+#include "golomb.h"
+#include "mathops.h"
+#include "mpegutils.h"
+#include "rectangle.h"
+#include "thread.h"
+
+
+static const uint8_t rem6[QP_MAX_NUM + 1] = {
+ 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2,
+ 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5,
+ 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3,
+};
+
+static const uint8_t div6[QP_MAX_NUM + 1] = {
+ 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 3, 3, 3,
+ 3, 3, 3, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6,
+ 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10,
+};
+
+static const uint8_t field_scan[16] = {
+ 0 + 0 * 4, 0 + 1 * 4, 1 + 0 * 4, 0 + 2 * 4,
+ 0 + 3 * 4, 1 + 1 * 4, 1 + 2 * 4, 1 + 3 * 4,
+ 2 + 0 * 4, 2 + 1 * 4, 2 + 2 * 4, 2 + 3 * 4,
+ 3 + 0 * 4, 3 + 1 * 4, 3 + 2 * 4, 3 + 3 * 4,
+};
+
+static const uint8_t field_scan8x8[64] = {
+ 0 + 0 * 8, 0 + 1 * 8, 0 + 2 * 8, 1 + 0 * 8,
+ 1 + 1 * 8, 0 + 3 * 8, 0 + 4 * 8, 1 + 2 * 8,
+ 2 + 0 * 8, 1 + 3 * 8, 0 + 5 * 8, 0 + 6 * 8,
+ 0 + 7 * 8, 1 + 4 * 8, 2 + 1 * 8, 3 + 0 * 8,
+ 2 + 2 * 8, 1 + 5 * 8, 1 + 6 * 8, 1 + 7 * 8,
+ 2 + 3 * 8, 3 + 1 * 8, 4 + 0 * 8, 3 + 2 * 8,
+ 2 + 4 * 8, 2 + 5 * 8, 2 + 6 * 8, 2 + 7 * 8,
+ 3 + 3 * 8, 4 + 1 * 8, 5 + 0 * 8, 4 + 2 * 8,
+ 3 + 4 * 8, 3 + 5 * 8, 3 + 6 * 8, 3 + 7 * 8,
+ 4 + 3 * 8, 5 + 1 * 8, 6 + 0 * 8, 5 + 2 * 8,
+ 4 + 4 * 8, 4 + 5 * 8, 4 + 6 * 8, 4 + 7 * 8,
+ 5 + 3 * 8, 6 + 1 * 8, 6 + 2 * 8, 5 + 4 * 8,
+ 5 + 5 * 8, 5 + 6 * 8, 5 + 7 * 8, 6 + 3 * 8,
+ 7 + 0 * 8, 7 + 1 * 8, 6 + 4 * 8, 6 + 5 * 8,
+ 6 + 6 * 8, 6 + 7 * 8, 7 + 2 * 8, 7 + 3 * 8,
+ 7 + 4 * 8, 7 + 5 * 8, 7 + 6 * 8, 7 + 7 * 8,
+};
+
+static const uint8_t field_scan8x8_cavlc[64] = {
+ 0 + 0 * 8, 1 + 1 * 8, 2 + 0 * 8, 0 + 7 * 8,
+ 2 + 2 * 8, 2 + 3 * 8, 2 + 4 * 8, 3 + 3 * 8,
+ 3 + 4 * 8, 4 + 3 * 8, 4 + 4 * 8, 5 + 3 * 8,
+ 5 + 5 * 8, 7 + 0 * 8, 6 + 6 * 8, 7 + 4 * 8,
+ 0 + 1 * 8, 0 + 3 * 8, 1 + 3 * 8, 1 + 4 * 8,
+ 1 + 5 * 8, 3 + 1 * 8, 2 + 5 * 8, 4 + 1 * 8,
+ 3 + 5 * 8, 5 + 1 * 8, 4 + 5 * 8, 6 + 1 * 8,
+ 5 + 6 * 8, 7 + 1 * 8, 6 + 7 * 8, 7 + 5 * 8,
+ 0 + 2 * 8, 0 + 4 * 8, 0 + 5 * 8, 2 + 1 * 8,
+ 1 + 6 * 8, 4 + 0 * 8, 2 + 6 * 8, 5 + 0 * 8,
+ 3 + 6 * 8, 6 + 0 * 8, 4 + 6 * 8, 6 + 2 * 8,
+ 5 + 7 * 8, 6 + 4 * 8, 7 + 2 * 8, 7 + 6 * 8,
+ 1 + 0 * 8, 1 + 2 * 8, 0 + 6 * 8, 3 + 0 * 8,
+ 1 + 7 * 8, 3 + 2 * 8, 2 + 7 * 8, 4 + 2 * 8,
+ 3 + 7 * 8, 5 + 2 * 8, 4 + 7 * 8, 5 + 4 * 8,
+ 6 + 3 * 8, 6 + 5 * 8, 7 + 3 * 8, 7 + 7 * 8,
+};
+
+// zigzag_scan8x8_cavlc[i] = zigzag_scan8x8[(i/4) + 16*(i%4)]
+static const uint8_t zigzag_scan8x8_cavlc[64] = {
+ 0 + 0 * 8, 1 + 1 * 8, 1 + 2 * 8, 2 + 2 * 8,
+ 4 + 1 * 8, 0 + 5 * 8, 3 + 3 * 8, 7 + 0 * 8,
+ 3 + 4 * 8, 1 + 7 * 8, 5 + 3 * 8, 6 + 3 * 8,
+ 2 + 7 * 8, 6 + 4 * 8, 5 + 6 * 8, 7 + 5 * 8,
+ 1 + 0 * 8, 2 + 0 * 8, 0 + 3 * 8, 3 + 1 * 8,
+ 3 + 2 * 8, 0 + 6 * 8, 4 + 2 * 8, 6 + 1 * 8,
+ 2 + 5 * 8, 2 + 6 * 8, 6 + 2 * 8, 5 + 4 * 8,
+ 3 + 7 * 8, 7 + 3 * 8, 4 + 7 * 8, 7 + 6 * 8,
+ 0 + 1 * 8, 3 + 0 * 8, 0 + 4 * 8, 4 + 0 * 8,
+ 2 + 3 * 8, 1 + 5 * 8, 5 + 1 * 8, 5 + 2 * 8,
+ 1 + 6 * 8, 3 + 5 * 8, 7 + 1 * 8, 4 + 5 * 8,
+ 4 + 6 * 8, 7 + 4 * 8, 5 + 7 * 8, 6 + 7 * 8,
+ 0 + 2 * 8, 2 + 1 * 8, 1 + 3 * 8, 5 + 0 * 8,
+ 1 + 4 * 8, 2 + 4 * 8, 6 + 0 * 8, 4 + 3 * 8,
+ 0 + 7 * 8, 4 + 4 * 8, 7 + 2 * 8, 3 + 6 * 8,
+ 5 + 5 * 8, 6 + 5 * 8, 6 + 6 * 8, 7 + 7 * 8,
+};
+
+static const uint8_t dequant4_coeff_init[6][3] = {
+ { 10, 13, 16 },
+ { 11, 14, 18 },
+ { 13, 16, 20 },
+ { 14, 18, 23 },
+ { 16, 20, 25 },
+ { 18, 23, 29 },
+};
+
+static const uint8_t dequant8_coeff_init_scan[16] = {
+ 0, 3, 4, 3, 3, 1, 5, 1, 4, 5, 2, 5, 3, 1, 5, 1
+};
+
+static const uint8_t dequant8_coeff_init[6][6] = {
+ { 20, 18, 32, 19, 25, 24 },
+ { 22, 19, 35, 21, 28, 26 },
+ { 26, 23, 42, 24, 33, 31 },
+ { 28, 25, 45, 26, 35, 33 },
+ { 32, 28, 51, 30, 40, 38 },
+ { 36, 32, 58, 34, 46, 43 },
+};
+
+static const enum AVPixelFormat h264_hwaccel_pixfmt_list_420[] = {
+#if CONFIG_H264_DXVA2_HWACCEL
+ AV_PIX_FMT_DXVA2_VLD,
+#endif
+#if CONFIG_H264_VAAPI_HWACCEL
+ AV_PIX_FMT_VAAPI_VLD,
+#endif
+#if CONFIG_H264_VDA_HWACCEL
+ AV_PIX_FMT_VDA_VLD,
+#endif
+#if CONFIG_H264_VDPAU_HWACCEL
+ AV_PIX_FMT_VDPAU,
+#endif
+ AV_PIX_FMT_YUV420P,
+ AV_PIX_FMT_NONE
+};
+
+static const enum AVPixelFormat h264_hwaccel_pixfmt_list_jpeg_420[] = {
+#if CONFIG_H264_DXVA2_HWACCEL
+ AV_PIX_FMT_DXVA2_VLD,
+#endif
+#if CONFIG_H264_VAAPI_HWACCEL
+ AV_PIX_FMT_VAAPI_VLD,
+#endif
+#if CONFIG_H264_VDA_HWACCEL
+ AV_PIX_FMT_VDA_VLD,
+#endif
+#if CONFIG_H264_VDPAU_HWACCEL
+ AV_PIX_FMT_VDPAU,
+#endif
+ AV_PIX_FMT_YUVJ420P,
+ AV_PIX_FMT_NONE
+};
+
+
+static void release_unused_pictures(H264Context *h, int remove_current)
+{
+ int i;
+
+ /* release non reference frames */
+ for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
+ if (h->DPB[i].f.buf[0] && !h->DPB[i].reference &&
+ (remove_current || &h->DPB[i] != h->cur_pic_ptr)) {
+ ff_h264_unref_picture(h, &h->DPB[i]);
+ }
+ }
+}
+
+static int alloc_scratch_buffers(H264Context *h, int linesize)
+{
+ int alloc_size = FFALIGN(FFABS(linesize) + 32, 32);
+
+ if (h->bipred_scratchpad)
+ return 0;
+
+ h->bipred_scratchpad = av_malloc(16 * 6 * alloc_size);
+ // edge emu needs blocksize + filter length - 1
+ // (= 21x21 for h264)
+ h->edge_emu_buffer = av_mallocz(alloc_size * 2 * 21);
+
+ if (!h->bipred_scratchpad || !h->edge_emu_buffer) {
+ av_freep(&h->bipred_scratchpad);
+ av_freep(&h->edge_emu_buffer);
+ return AVERROR(ENOMEM);
+ }
+
+ return 0;
+}
+
+static int init_table_pools(H264Context *h)
+{
+ const int big_mb_num = h->mb_stride * (h->mb_height + 1) + 1;
+ const int mb_array_size = h->mb_stride * h->mb_height;
+ const int b4_stride = h->mb_width * 4 + 1;
+ const int b4_array_size = b4_stride * h->mb_height * 4;
+
+ h->qscale_table_pool = av_buffer_pool_init(big_mb_num + h->mb_stride,
+ av_buffer_allocz);
+ h->mb_type_pool = av_buffer_pool_init((big_mb_num + h->mb_stride) *
+ sizeof(uint32_t), av_buffer_allocz);
+ h->motion_val_pool = av_buffer_pool_init(2 * (b4_array_size + 4) *
+ sizeof(int16_t), av_buffer_allocz);
+ h->ref_index_pool = av_buffer_pool_init(4 * mb_array_size, av_buffer_allocz);
+
+ if (!h->qscale_table_pool || !h->mb_type_pool || !h->motion_val_pool ||
+ !h->ref_index_pool) {
+ av_buffer_pool_uninit(&h->qscale_table_pool);
+ av_buffer_pool_uninit(&h->mb_type_pool);
+ av_buffer_pool_uninit(&h->motion_val_pool);
+ av_buffer_pool_uninit(&h->ref_index_pool);
+ return AVERROR(ENOMEM);
+ }
+
+ return 0;
+}
+
+static int alloc_picture(H264Context *h, H264Picture *pic)
+{
+ int i, ret = 0;
+
+ av_assert0(!pic->f.data[0]);
+
+ pic->tf.f = &pic->f;
+ ret = ff_thread_get_buffer(h->avctx, &pic->tf, pic->reference ?
+ AV_GET_BUFFER_FLAG_REF : 0);
+ if (ret < 0)
+ goto fail;
+
+ h->linesize = pic->f.linesize[0];
+ h->uvlinesize = pic->f.linesize[1];
+
+ if (h->avctx->hwaccel) {
+ const AVHWAccel *hwaccel = h->avctx->hwaccel;
+ av_assert0(!pic->hwaccel_picture_private);
+ if (hwaccel->priv_data_size) {
+ pic->hwaccel_priv_buf = av_buffer_allocz(hwaccel->priv_data_size);
+ if (!pic->hwaccel_priv_buf)
+ return AVERROR(ENOMEM);
+ pic->hwaccel_picture_private = pic->hwaccel_priv_buf->data;
+ }
+ }
+
+ if (!h->qscale_table_pool) {
+ ret = init_table_pools(h);
+ if (ret < 0)
+ goto fail;
+ }
+
+ pic->qscale_table_buf = av_buffer_pool_get(h->qscale_table_pool);
+ pic->mb_type_buf = av_buffer_pool_get(h->mb_type_pool);
+ if (!pic->qscale_table_buf || !pic->mb_type_buf)
+ goto fail;
+
+ pic->mb_type = (uint32_t*)pic->mb_type_buf->data + 2 * h->mb_stride + 1;
+ pic->qscale_table = pic->qscale_table_buf->data + 2 * h->mb_stride + 1;
+
+ for (i = 0; i < 2; i++) {
+ pic->motion_val_buf[i] = av_buffer_pool_get(h->motion_val_pool);
+ pic->ref_index_buf[i] = av_buffer_pool_get(h->ref_index_pool);
+ if (!pic->motion_val_buf[i] || !pic->ref_index_buf[i])
+ goto fail;
+
+ pic->motion_val[i] = (int16_t (*)[2])pic->motion_val_buf[i]->data + 4;
+ pic->ref_index[i] = pic->ref_index_buf[i]->data;
+ }
+
+ return 0;
+fail:
+ ff_h264_unref_picture(h, pic);
+ return (ret < 0) ? ret : AVERROR(ENOMEM);
+}
+
+static inline int pic_is_unused(H264Context *h, H264Picture *pic)
+{
+ if (!pic->f.buf[0])
+ return 1;
+ if (pic->needs_realloc && !(pic->reference & DELAYED_PIC_REF))
+ return 1;
+ return 0;
+}
+
+static int find_unused_picture(H264Context *h)
+{
+ int i;
+
+ for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
+ if (pic_is_unused(h, &h->DPB[i]))
+ break;
+ }
+ if (i == H264_MAX_PICTURE_COUNT)
+ return AVERROR_INVALIDDATA;
+
+ if (h->DPB[i].needs_realloc) {
+ h->DPB[i].needs_realloc = 0;
+ ff_h264_unref_picture(h, &h->DPB[i]);
+ }
+
+ return i;
+}
+
+
+static void init_dequant8_coeff_table(H264Context *h)
+{
+ int i, j, q, x;
+ const int max_qp = 51 + 6 * (h->sps.bit_depth_luma - 8);
+
+ for (i = 0; i < 6; i++) {
+ h->dequant8_coeff[i] = h->dequant8_buffer[i];
+ for (j = 0; j < i; j++)
+ if (!memcmp(h->pps.scaling_matrix8[j], h->pps.scaling_matrix8[i],
+ 64 * sizeof(uint8_t))) {
+ h->dequant8_coeff[i] = h->dequant8_buffer[j];
+ break;
+ }
+ if (j < i)
+ continue;
+
+ for (q = 0; q < max_qp + 1; q++) {
+ int shift = div6[q];
+ int idx = rem6[q];
+ for (x = 0; x < 64; x++)
+ h->dequant8_coeff[i][q][(x >> 3) | ((x & 7) << 3)] =
+ ((uint32_t)dequant8_coeff_init[idx][dequant8_coeff_init_scan[((x >> 1) & 12) | (x & 3)]] *
+ h->pps.scaling_matrix8[i][x]) << shift;
+ }
+ }
+}
+
+static void init_dequant4_coeff_table(H264Context *h)
+{
+ int i, j, q, x;
+ const int max_qp = 51 + 6 * (h->sps.bit_depth_luma - 8);
+ for (i = 0; i < 6; i++) {
+ h->dequant4_coeff[i] = h->dequant4_buffer[i];
+ for (j = 0; j < i; j++)
+ if (!memcmp(h->pps.scaling_matrix4[j], h->pps.scaling_matrix4[i],
+ 16 * sizeof(uint8_t))) {
+ h->dequant4_coeff[i] = h->dequant4_buffer[j];
+ break;
+ }
+ if (j < i)
+ continue;
+
+ for (q = 0; q < max_qp + 1; q++) {
+ int shift = div6[q] + 2;
+ int idx = rem6[q];
+ for (x = 0; x < 16; x++)
+ h->dequant4_coeff[i][q][(x >> 2) | ((x << 2) & 0xF)] =
+ ((uint32_t)dequant4_coeff_init[idx][(x & 1) + ((x >> 2) & 1)] *
+ h->pps.scaling_matrix4[i][x]) << shift;
+ }
+ }
+}
+
+void h264_init_dequant_tables(H264Context *h)
+{
+ int i, x;
+ init_dequant4_coeff_table(h);
+ if (h->pps.transform_8x8_mode)
+ init_dequant8_coeff_table(h);
+ if (h->sps.transform_bypass) {
+ for (i = 0; i < 6; i++)
+ for (x = 0; x < 16; x++)
+ h->dequant4_coeff[i][0][x] = 1 << 6;
+ if (h->pps.transform_8x8_mode)
+ for (i = 0; i < 6; i++)
+ for (x = 0; x < 64; x++)
+ h->dequant8_coeff[i][0][x] = 1 << 6;
+ }
+}
+
+/**
+ * Mimic alloc_tables(), but for every context thread.
+ */
+static void clone_tables(H264Context *dst, H264Context *src, int i)
+{
+ dst->intra4x4_pred_mode = src->intra4x4_pred_mode + i * 8 * 2 * src->mb_stride;
+ dst->non_zero_count = src->non_zero_count;
+ dst->slice_table = src->slice_table;
+ dst->cbp_table = src->cbp_table;
+ dst->mb2b_xy = src->mb2b_xy;
+ dst->mb2br_xy = src->mb2br_xy;
+ dst->chroma_pred_mode_table = src->chroma_pred_mode_table;
+ dst->mvd_table[0] = src->mvd_table[0] + i * 8 * 2 * src->mb_stride;
+ dst->mvd_table[1] = src->mvd_table[1] + i * 8 * 2 * src->mb_stride;
+ dst->direct_table = src->direct_table;
+ dst->list_counts = src->list_counts;
+ dst->DPB = src->DPB;
+ dst->cur_pic_ptr = src->cur_pic_ptr;
+ dst->cur_pic = src->cur_pic;
+ dst->bipred_scratchpad = NULL;
+ dst->edge_emu_buffer = NULL;
+ ff_h264_pred_init(&dst->hpc, src->avctx->codec_id, src->sps.bit_depth_luma,
+ src->sps.chroma_format_idc);
+}
+
+#define IN_RANGE(a, b, size) (((a) >= (b)) && ((a) < ((b) + (size))))
+#undef REBASE_PICTURE
+#define REBASE_PICTURE(pic, new_ctx, old_ctx) \
+ ((pic && pic >= old_ctx->DPB && \
+ pic < old_ctx->DPB + H264_MAX_PICTURE_COUNT) ? \
+ &new_ctx->DPB[pic - old_ctx->DPB] : NULL)
+
+static void copy_picture_range(H264Picture **to, H264Picture **from, int count,
+ H264Context *new_base,
+ H264Context *old_base)
+{
+ int i;
+
+ for (i = 0; i < count; i++) {
+ assert((IN_RANGE(from[i], old_base, sizeof(*old_base)) ||
+ IN_RANGE(from[i], old_base->DPB,
+ sizeof(H264Picture) * H264_MAX_PICTURE_COUNT) ||
+ !from[i]));
+ to[i] = REBASE_PICTURE(from[i], new_base, old_base);
+ }
+}
+
+static int copy_parameter_set(void **to, void **from, int count, int size)
+{
+ int i;
+
+ for (i = 0; i < count; i++) {
+ if (to[i] && !from[i]) {
+ av_freep(&to[i]);
+ } else if (from[i] && !to[i]) {
+ to[i] = av_malloc(size);
+ if (!to[i])
+ return AVERROR(ENOMEM);
+ }
+
+ if (from[i])
+ memcpy(to[i], from[i], size);
+ }
+
+ return 0;
+}
+
+#define copy_fields(to, from, start_field, end_field) \
+ memcpy(&to->start_field, &from->start_field, \
+ (char *)&to->end_field - (char *)&to->start_field)
+
+static int h264_slice_header_init(H264Context *h, int reinit);
+
+int ff_h264_update_thread_context(AVCodecContext *dst,
+ const AVCodecContext *src)
+{
+ H264Context *h = dst->priv_data, *h1 = src->priv_data;
+ int inited = h->context_initialized, err = 0;
+ int context_reinitialized = 0;
+ int i, ret;
+
+ if (dst == src || !h1->context_initialized)
+ return 0;
+
+ if (inited &&
+ (h->width != h1->width ||
+ h->height != h1->height ||
+ h->mb_width != h1->mb_width ||
+ h->mb_height != h1->mb_height ||
+ h->sps.bit_depth_luma != h1->sps.bit_depth_luma ||
+ h->sps.chroma_format_idc != h1->sps.chroma_format_idc ||
+ h->sps.colorspace != h1->sps.colorspace)) {
+
+ /* set bits_per_raw_sample to the previous value. the check for changed
+ * bit depth in h264_set_parameter_from_sps() uses it and sets it to
+ * the current value */
+ h->avctx->bits_per_raw_sample = h->sps.bit_depth_luma;
+
+ av_freep(&h->bipred_scratchpad);
+
+ h->width = h1->width;
+ h->height = h1->height;
+ h->mb_height = h1->mb_height;
+ h->mb_width = h1->mb_width;
+ h->mb_num = h1->mb_num;
+ h->mb_stride = h1->mb_stride;
+ h->b_stride = h1->b_stride;
+
+ if ((err = h264_slice_header_init(h, 1)) < 0) {
+ av_log(h->avctx, AV_LOG_ERROR, "h264_slice_header_init() failed");
+ return err;
+ }
+ context_reinitialized = 1;
+
+ /* update linesize on resize. The decoder doesn't
+ * necessarily call h264_frame_start in the new thread */
+ h->linesize = h1->linesize;
+ h->uvlinesize = h1->uvlinesize;
+
+ /* copy block_offset since frame_start may not be called */
+ memcpy(h->block_offset, h1->block_offset, sizeof(h->block_offset));
+ }
+
+ if (!inited) {
+ for (i = 0; i < MAX_SPS_COUNT; i++)
+ av_freep(h->sps_buffers + i);
+
+ for (i = 0; i < MAX_PPS_COUNT; i++)
+ av_freep(h->pps_buffers + i);
+
+ memcpy(h, h1, sizeof(*h1));
+ memset(h->sps_buffers, 0, sizeof(h->sps_buffers));
+ memset(h->pps_buffers, 0, sizeof(h->pps_buffers));
+ memset(&h->er, 0, sizeof(h->er));
+ memset(&h->mb, 0, sizeof(h->mb));
+ memset(&h->mb_luma_dc, 0, sizeof(h->mb_luma_dc));
+ memset(&h->mb_padding, 0, sizeof(h->mb_padding));
+ h->context_initialized = 0;
+
+ memset(&h->cur_pic, 0, sizeof(h->cur_pic));
+ av_frame_unref(&h->cur_pic.f);
+ h->cur_pic.tf.f = &h->cur_pic.f;
+
+ h->avctx = dst;
+ h->DPB = NULL;
+ h->qscale_table_pool = NULL;
+ h->mb_type_pool = NULL;
+ h->ref_index_pool = NULL;
+ h->motion_val_pool = NULL;
+
+ ret = ff_h264_alloc_tables(h);
+ if (ret < 0) {
+ av_log(dst, AV_LOG_ERROR, "Could not allocate memory\n");
+ return ret;
+ }
+ ret = ff_h264_context_init(h);
+ if (ret < 0) {
+ av_log(dst, AV_LOG_ERROR, "context_init() failed.\n");
+ return ret;
+ }
+
+ for (i = 0; i < 2; i++) {
+ h->rbsp_buffer[i] = NULL;
+ h->rbsp_buffer_size[i] = 0;
+ }
+ h->bipred_scratchpad = NULL;
+ h->edge_emu_buffer = NULL;
+
+ h->thread_context[0] = h;
+
+ h->context_initialized = 1;
+ }
+
+ h->avctx->coded_height = h1->avctx->coded_height;
+ h->avctx->coded_width = h1->avctx->coded_width;
+ h->avctx->width = h1->avctx->width;
+ h->avctx->height = h1->avctx->height;
+ h->coded_picture_number = h1->coded_picture_number;
+ h->first_field = h1->first_field;
+ h->picture_structure = h1->picture_structure;
+ h->qscale = h1->qscale;
+ h->droppable = h1->droppable;
+ h->low_delay = h1->low_delay;
+
+ for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) {
+ ff_h264_unref_picture(h, &h->DPB[i]);
+ if (h1->DPB[i].f.buf[0] &&
+ (ret = ff_h264_ref_picture(h, &h->DPB[i], &h1->DPB[i])) < 0)
+ return ret;
+ }
+
+ h->cur_pic_ptr = REBASE_PICTURE(h1->cur_pic_ptr, h, h1);
+ ff_h264_unref_picture(h, &h->cur_pic);
+ if ((ret = ff_h264_ref_picture(h, &h->cur_pic, &h1->cur_pic)) < 0)
+ return ret;
+
+ h->workaround_bugs = h1->workaround_bugs;
+ h->low_delay = h1->low_delay;
+ h->droppable = h1->droppable;
+
+ /* frame_start may not be called for the next thread (if it's decoding
+ * a bottom field) so this has to be allocated here */
+ err = alloc_scratch_buffers(h, h1->linesize);
+ if (err < 0)
+ return err;
+
+ // extradata/NAL handling
+ h->is_avc = h1->is_avc;
+
+ // SPS/PPS
+ if ((ret = copy_parameter_set((void **)h->sps_buffers,
+ (void **)h1->sps_buffers,
+ MAX_SPS_COUNT, sizeof(SPS))) < 0)
+ return ret;
+ h->sps = h1->sps;
+ if ((ret = copy_parameter_set((void **)h->pps_buffers,
+ (void **)h1->pps_buffers,
+ MAX_PPS_COUNT, sizeof(PPS))) < 0)
+ return ret;
+ h->pps = h1->pps;
+
+ // Dequantization matrices
+ // FIXME these are big - can they be only copied when PPS changes?
+ copy_fields(h, h1, dequant4_buffer, dequant4_coeff);
+
+ for (i = 0; i < 6; i++)
+ h->dequant4_coeff[i] = h->dequant4_buffer[0] +
+ (h1->dequant4_coeff[i] - h1->dequant4_buffer[0]);
+
+ for (i = 0; i < 6; i++)
+ h->dequant8_coeff[i] = h->dequant8_buffer[0] +
+ (h1->dequant8_coeff[i] - h1->dequant8_buffer[0]);
+
+ h->dequant_coeff_pps = h1->dequant_coeff_pps;
+
+ // POC timing
+ copy_fields(h, h1, poc_lsb, redundant_pic_count);
+
+ // reference lists
+ copy_fields(h, h1, short_ref, cabac_init_idc);
+
+ copy_picture_range(h->short_ref, h1->short_ref, 32, h, h1);
+ copy_picture_range(h->long_ref, h1->long_ref, 32, h, h1);
+ copy_picture_range(h->delayed_pic, h1->delayed_pic,
+ MAX_DELAYED_PIC_COUNT + 2, h, h1);
+
+ h->last_slice_type = h1->last_slice_type;
+
+ if (context_reinitialized)
+ ff_h264_set_parameter_from_sps(h);
+
+ if (!h->cur_pic_ptr)
+ return 0;
+
+ if (!h->droppable) {
+ err = ff_h264_execute_ref_pic_marking(h, h->mmco, h->mmco_index);
+ h->prev_poc_msb = h->poc_msb;
+ h->prev_poc_lsb = h->poc_lsb;
+ }
+ h->prev_frame_num_offset = h->frame_num_offset;
+ h->prev_frame_num = h->frame_num;
+ h->outputed_poc = h->next_outputed_poc;
+
+ h->recovery_frame = h1->recovery_frame;
+ h->frame_recovered = h1->frame_recovered;
+
+ return err;
+}
+
+static int h264_frame_start(H264Context *h)
+{
+ H264Picture *pic;
+ int i, ret;
+ const int pixel_shift = h->pixel_shift;
+
+ release_unused_pictures(h, 1);
+ h->cur_pic_ptr = NULL;
+
+ i = find_unused_picture(h);
+ if (i < 0) {
+ av_log(h->avctx, AV_LOG_ERROR, "no frame buffer available\n");
+ return i;
+ }
+ pic = &h->DPB[i];
+
+ pic->reference = h->droppable ? 0 : h->picture_structure;
+ pic->f.coded_picture_number = h->coded_picture_number++;
+ pic->field_picture = h->picture_structure != PICT_FRAME;
+ /*
+ * Zero key_frame here; IDR markings per slice in frame or fields are ORed
+ * in later.
+ * See decode_nal_units().
+ */
+ pic->f.key_frame = 0;
+ pic->mmco_reset = 0;
+ pic->recovered = 0;
+
+ if ((ret = alloc_picture(h, pic)) < 0)
+ return ret;
+
+ h->cur_pic_ptr = pic;
+ ff_h264_unref_picture(h, &h->cur_pic);
+ if ((ret = ff_h264_ref_picture(h, &h->cur_pic, h->cur_pic_ptr)) < 0)
+ return ret;
+
+ if (CONFIG_ERROR_RESILIENCE)
+ ff_er_frame_start(&h->er);
+
+ assert(h->linesize && h->uvlinesize);
+
+ for (i = 0; i < 16; i++) {
+ h->block_offset[i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 4 * h->linesize * ((scan8[i] - scan8[0]) >> 3);
+ h->block_offset[48 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 8 * h->linesize * ((scan8[i] - scan8[0]) >> 3);
+ }
+ for (i = 0; i < 16; i++) {
+ h->block_offset[16 + i] =
+ h->block_offset[32 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 4 * h->uvlinesize * ((scan8[i] - scan8[0]) >> 3);
+ h->block_offset[48 + 16 + i] =
+ h->block_offset[48 + 32 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 8 * h->uvlinesize * ((scan8[i] - scan8[0]) >> 3);
+ }
+
+ /* can't be in alloc_tables because linesize isn't known there.
+ * FIXME: redo bipred weight to not require extra buffer? */
+ for (i = 0; i < h->slice_context_count; i++)
+ if (h->thread_context[i]) {
+ ret = alloc_scratch_buffers(h->thread_context[i], h->linesize);
+ if (ret < 0)
+ return ret;
+ }
+
+ /* Some macroblocks can be accessed before they're available in case
+ * of lost slices, MBAFF or threading. */
+ memset(h->slice_table, -1,
+ (h->mb_height * h->mb_stride - 1) * sizeof(*h->slice_table));
+
+ // s->decode = (s->flags & CODEC_FLAG_PSNR) || !s->encoding ||
+ // s->current_picture.f.reference /* || h->contains_intra */ || 1;
+
+ /* We mark the current picture as non-reference after allocating it, so
+ * that if we break out due to an error it can be released automatically
+ * in the next ff_MPV_frame_start().
+ */
+ h->cur_pic_ptr->reference = 0;
+
+ h->cur_pic_ptr->field_poc[0] = h->cur_pic_ptr->field_poc[1] = INT_MAX;
+
+ h->next_output_pic = NULL;
+
+ assert(h->cur_pic_ptr->long_ref == 0);
+
+ return 0;
+}
+
+static av_always_inline void backup_mb_border(H264Context *h, uint8_t *src_y,
+ uint8_t *src_cb, uint8_t *src_cr,
+ int linesize, int uvlinesize,
+ int simple)
+{
+ uint8_t *top_border;
+ int top_idx = 1;
+ const int pixel_shift = h->pixel_shift;
+ int chroma444 = CHROMA444(h);
+ int chroma422 = CHROMA422(h);
+
+ src_y -= linesize;
+ src_cb -= uvlinesize;
+ src_cr -= uvlinesize;
+
+ if (!simple && FRAME_MBAFF(h)) {
+ if (h->mb_y & 1) {
+ if (!MB_MBAFF(h)) {
+ top_border = h->top_borders[0][h->mb_x];
+ AV_COPY128(top_border, src_y + 15 * linesize);
+ if (pixel_shift)
+ AV_COPY128(top_border + 16, src_y + 15 * linesize + 16);
+ if (simple || !CONFIG_GRAY || !(h->flags & CODEC_FLAG_GRAY)) {
+ if (chroma444) {
+ if (pixel_shift) {
+ AV_COPY128(top_border + 32, src_cb + 15 * uvlinesize);
+ AV_COPY128(top_border + 48, src_cb + 15 * uvlinesize + 16);
+ AV_COPY128(top_border + 64, src_cr + 15 * uvlinesize);
+ AV_COPY128(top_border + 80, src_cr + 15 * uvlinesize + 16);
+ } else {
+ AV_COPY128(top_border + 16, src_cb + 15 * uvlinesize);
+ AV_COPY128(top_border + 32, src_cr + 15 * uvlinesize);
+ }
+ } else if (chroma422) {
+ if (pixel_shift) {
+ AV_COPY128(top_border + 32, src_cb + 15 * uvlinesize);
+ AV_COPY128(top_border + 48, src_cr + 15 * uvlinesize);
+ } else {
+ AV_COPY64(top_border + 16, src_cb + 15 * uvlinesize);
+ AV_COPY64(top_border + 24, src_cr + 15 * uvlinesize);
+ }
+ } else {
+ if (pixel_shift) {
+ AV_COPY128(top_border + 32, src_cb + 7 * uvlinesize);
+ AV_COPY128(top_border + 48, src_cr + 7 * uvlinesize);
+ } else {
+ AV_COPY64(top_border + 16, src_cb + 7 * uvlinesize);
+ AV_COPY64(top_border + 24, src_cr + 7 * uvlinesize);
+ }
+ }
+ }
+ }
+ } else if (MB_MBAFF(h)) {
+ top_idx = 0;
+ } else
+ return;
+ }
+
+ top_border = h->top_borders[top_idx][h->mb_x];
+ /* There are two lines saved, the line above the top macroblock
+ * of a pair, and the line above the bottom macroblock. */
+ AV_COPY128(top_border, src_y + 16 * linesize);
+ if (pixel_shift)
+ AV_COPY128(top_border + 16, src_y + 16 * linesize + 16);
+
+ if (simple || !CONFIG_GRAY || !(h->flags & CODEC_FLAG_GRAY)) {
+ if (chroma444) {
+ if (pixel_shift) {
+ AV_COPY128(top_border + 32, src_cb + 16 * linesize);
+ AV_COPY128(top_border + 48, src_cb + 16 * linesize + 16);
+ AV_COPY128(top_border + 64, src_cr + 16 * linesize);
+ AV_COPY128(top_border + 80, src_cr + 16 * linesize + 16);
+ } else {
+ AV_COPY128(top_border + 16, src_cb + 16 * linesize);
+ AV_COPY128(top_border + 32, src_cr + 16 * linesize);
+ }
+ } else if (chroma422) {
+ if (pixel_shift) {
+ AV_COPY128(top_border + 32, src_cb + 16 * uvlinesize);
+ AV_COPY128(top_border + 48, src_cr + 16 * uvlinesize);
+ } else {
+ AV_COPY64(top_border + 16, src_cb + 16 * uvlinesize);
+ AV_COPY64(top_border + 24, src_cr + 16 * uvlinesize);
+ }
+ } else {
+ if (pixel_shift) {
+ AV_COPY128(top_border + 32, src_cb + 8 * uvlinesize);
+ AV_COPY128(top_border + 48, src_cr + 8 * uvlinesize);
+ } else {
+ AV_COPY64(top_border + 16, src_cb + 8 * uvlinesize);
+ AV_COPY64(top_border + 24, src_cr + 8 * uvlinesize);
+ }
+ }
+ }
+}
+
+/**
+ * Initialize implicit_weight table.
+ * @param field 0/1 initialize the weight for interlaced MBAFF
+ * -1 initializes the rest
+ */
+static void implicit_weight_table(H264Context *h, int field)
+{
+ int ref0, ref1, i, cur_poc, ref_start, ref_count0, ref_count1;
+
+ for (i = 0; i < 2; i++) {
+ h->luma_weight_flag[i] = 0;
+ h->chroma_weight_flag[i] = 0;
+ }
+
+ if (field < 0) {
+ if (h->picture_structure == PICT_FRAME) {
+ cur_poc = h->cur_pic_ptr->poc;
+ } else {
+ cur_poc = h->cur_pic_ptr->field_poc[h->picture_structure - 1];
+ }
+ if (h->ref_count[0] == 1 && h->ref_count[1] == 1 && !FRAME_MBAFF(h) &&
+ h->ref_list[0][0].poc + h->ref_list[1][0].poc == 2 * cur_poc) {
+ h->use_weight = 0;
+ h->use_weight_chroma = 0;
+ return;
+ }
+ ref_start = 0;
+ ref_count0 = h->ref_count[0];
+ ref_count1 = h->ref_count[1];
+ } else {
+ cur_poc = h->cur_pic_ptr->field_poc[field];
+ ref_start = 16;
+ ref_count0 = 16 + 2 * h->ref_count[0];
+ ref_count1 = 16 + 2 * h->ref_count[1];
+ }
+
+ h->use_weight = 2;
+ h->use_weight_chroma = 2;
+ h->luma_log2_weight_denom = 5;
+ h->chroma_log2_weight_denom = 5;
+
+ for (ref0 = ref_start; ref0 < ref_count0; ref0++) {
+ int poc0 = h->ref_list[0][ref0].poc;
+ for (ref1 = ref_start; ref1 < ref_count1; ref1++) {
+ int w = 32;
+ if (!h->ref_list[0][ref0].long_ref && !h->ref_list[1][ref1].long_ref) {
+ int poc1 = h->ref_list[1][ref1].poc;
+ int td = av_clip(poc1 - poc0, -128, 127);
+ if (td) {
+ int tb = av_clip(cur_poc - poc0, -128, 127);
+ int tx = (16384 + (FFABS(td) >> 1)) / td;
+ int dist_scale_factor = (tb * tx + 32) >> 8;
+ if (dist_scale_factor >= -64 && dist_scale_factor <= 128)
+ w = 64 - dist_scale_factor;
+ }
+ }
+ if (field < 0) {
+ h->implicit_weight[ref0][ref1][0] =
+ h->implicit_weight[ref0][ref1][1] = w;
+ } else {
+ h->implicit_weight[ref0][ref1][field] = w;
+ }
+ }
+ }
+}
+
+/**
+ * initialize scan tables
+ */
+static void init_scan_tables(H264Context *h)
+{
+ int i;
+ for (i = 0; i < 16; i++) {
+#define TRANSPOSE(x) (x >> 2) | ((x << 2) & 0xF)
+ h->zigzag_scan[i] = TRANSPOSE(zigzag_scan[i]);
+ h->field_scan[i] = TRANSPOSE(field_scan[i]);
+#undef TRANSPOSE
+ }
+ for (i = 0; i < 64; i++) {
+#define TRANSPOSE(x) (x >> 3) | ((x & 7) << 3)
+ h->zigzag_scan8x8[i] = TRANSPOSE(ff_zigzag_direct[i]);
+ h->zigzag_scan8x8_cavlc[i] = TRANSPOSE(zigzag_scan8x8_cavlc[i]);
+ h->field_scan8x8[i] = TRANSPOSE(field_scan8x8[i]);
+ h->field_scan8x8_cavlc[i] = TRANSPOSE(field_scan8x8_cavlc[i]);
+#undef TRANSPOSE
+ }
+ if (h->sps.transform_bypass) { // FIXME same ugly
+ h->zigzag_scan_q0 = zigzag_scan;
+ h->zigzag_scan8x8_q0 = ff_zigzag_direct;
+ h->zigzag_scan8x8_cavlc_q0 = zigzag_scan8x8_cavlc;
+ h->field_scan_q0 = field_scan;
+ h->field_scan8x8_q0 = field_scan8x8;
+ h->field_scan8x8_cavlc_q0 = field_scan8x8_cavlc;
+ } else {
+ h->zigzag_scan_q0 = h->zigzag_scan;
+ h->zigzag_scan8x8_q0 = h->zigzag_scan8x8;
+ h->zigzag_scan8x8_cavlc_q0 = h->zigzag_scan8x8_cavlc;
+ h->field_scan_q0 = h->field_scan;
+ h->field_scan8x8_q0 = h->field_scan8x8;
+ h->field_scan8x8_cavlc_q0 = h->field_scan8x8_cavlc;
+ }
+}
+
+/**
+ * Replicate H264 "master" context to thread contexts.
+ */
+static int clone_slice(H264Context *dst, H264Context *src)
+{
+ memcpy(dst->block_offset, src->block_offset, sizeof(dst->block_offset));
+ dst->cur_pic_ptr = src->cur_pic_ptr;
+ dst->cur_pic = src->cur_pic;
+ dst->linesize = src->linesize;
+ dst->uvlinesize = src->uvlinesize;
+ dst->first_field = src->first_field;
+
+ dst->prev_poc_msb = src->prev_poc_msb;
+ dst->prev_poc_lsb = src->prev_poc_lsb;
+ dst->prev_frame_num_offset = src->prev_frame_num_offset;
+ dst->prev_frame_num = src->prev_frame_num;
+ dst->short_ref_count = src->short_ref_count;
+
+ memcpy(dst->short_ref, src->short_ref, sizeof(dst->short_ref));
+ memcpy(dst->long_ref, src->long_ref, sizeof(dst->long_ref));
+ memcpy(dst->default_ref_list, src->default_ref_list, sizeof(dst->default_ref_list));
+
+ memcpy(dst->dequant4_coeff, src->dequant4_coeff, sizeof(src->dequant4_coeff));
+ memcpy(dst->dequant8_coeff, src->dequant8_coeff, sizeof(src->dequant8_coeff));
+
+ return 0;
+}
+
+static enum AVPixelFormat get_pixel_format(H264Context *h)
+{
+ switch (h->sps.bit_depth_luma) {
+ case 9:
+ if (CHROMA444(h)) {
+ if (h->avctx->colorspace == AVCOL_SPC_RGB) {
+ return AV_PIX_FMT_GBRP9;
+ } else
+ return AV_PIX_FMT_YUV444P9;
+ } else if (CHROMA422(h))
+ return AV_PIX_FMT_YUV422P9;
+ else
+ return AV_PIX_FMT_YUV420P9;
+ break;
+ case 10:
+ if (CHROMA444(h)) {
+ if (h->avctx->colorspace == AVCOL_SPC_RGB) {
+ return AV_PIX_FMT_GBRP10;
+ } else
+ return AV_PIX_FMT_YUV444P10;
+ } else if (CHROMA422(h))
+ return AV_PIX_FMT_YUV422P10;
+ else
+ return AV_PIX_FMT_YUV420P10;
+ break;
+ case 8:
+ if (CHROMA444(h)) {
+ if (h->avctx->colorspace == AVCOL_SPC_RGB) {
+ return AV_PIX_FMT_GBRP;
+ } else
+ return h->avctx->color_range == AVCOL_RANGE_JPEG ? AV_PIX_FMT_YUVJ444P
+ : AV_PIX_FMT_YUV444P;
+ } else if (CHROMA422(h)) {
+ return h->avctx->color_range == AVCOL_RANGE_JPEG ? AV_PIX_FMT_YUVJ422P
+ : AV_PIX_FMT_YUV422P;
+ } else {
+ return h->avctx->get_format(h->avctx, h->avctx->codec->pix_fmts ?
+ h->avctx->codec->pix_fmts :
+ h->avctx->color_range == AVCOL_RANGE_JPEG ?
+ h264_hwaccel_pixfmt_list_jpeg_420 :
+ h264_hwaccel_pixfmt_list_420);
+ }
+ break;
+ default:
+ av_log(h->avctx, AV_LOG_ERROR,
+ "Unsupported bit depth %d\n", h->sps.bit_depth_luma);
+ return AVERROR_INVALIDDATA;
+ }
+}
+
+/* export coded and cropped frame dimensions to AVCodecContext */
+static int init_dimensions(H264Context *h)
+{
+ int width = h->width - (h->sps.crop_right + h->sps.crop_left);
+ int height = h->height - (h->sps.crop_top + h->sps.crop_bottom);
+
+ /* handle container cropping */
+ if (!h->sps.crop &&
+ FFALIGN(h->avctx->width, 16) == h->width &&
+ FFALIGN(h->avctx->height, 16) == h->height) {
+ width = h->avctx->width;
+ height = h->avctx->height;
+ }
+
+ if (width <= 0 || height <= 0) {
+ av_log(h->avctx, AV_LOG_ERROR, "Invalid cropped dimensions: %dx%d.\n",
+ width, height);
+ if (h->avctx->err_recognition & AV_EF_EXPLODE)
+ return AVERROR_INVALIDDATA;
+
+ av_log(h->avctx, AV_LOG_WARNING, "Ignoring cropping information.\n");
+ h->sps.crop_bottom = h->sps.crop_top = h->sps.crop_right = h->sps.crop_left = 0;
+ h->sps.crop = 0;
+
+ width = h->width;
+ height = h->height;
+ }
+
+ h->avctx->coded_width = h->width;
+ h->avctx->coded_height = h->height;
+ h->avctx->width = width;
+ h->avctx->height = height;
+
+ return 0;
+}
+
+static int h264_slice_header_init(H264Context *h, int reinit)
+{
+ int nb_slices = (HAVE_THREADS &&
+ h->avctx->active_thread_type & FF_THREAD_SLICE) ?
+ h->avctx->thread_count : 1;
+ int i, ret;
+
+ h->avctx->sample_aspect_ratio = h->sps.sar;
+ av_assert0(h->avctx->sample_aspect_ratio.den);
+ av_pix_fmt_get_chroma_sub_sample(h->avctx->pix_fmt,
+ &h->chroma_x_shift, &h->chroma_y_shift);
+
+ if (h->sps.timing_info_present_flag) {
+ int64_t den = h->sps.time_scale;
+ if (h->x264_build < 44U)
+ den *= 2;
+ av_reduce(&h->avctx->time_base.num, &h->avctx->time_base.den,
+ h->sps.num_units_in_tick, den, 1 << 30);
+ }
+
+ h->avctx->hwaccel = ff_find_hwaccel(h->avctx);
+
+ if (reinit)
+ ff_h264_free_tables(h, 0);
+ h->first_field = 0;
+ h->prev_interlaced_frame = 1;
+
+ init_scan_tables(h);
+ ret = ff_h264_alloc_tables(h);
+ if (ret < 0) {
+ av_log(h->avctx, AV_LOG_ERROR, "Could not allocate memory\n");
+ return ret;
+ }
+
+ if (nb_slices > H264_MAX_THREADS || (nb_slices > h->mb_height && h->mb_height)) {
+ int max_slices;
+ if (h->mb_height)
+ max_slices = FFMIN(H264_MAX_THREADS, h->mb_height);
+ else
+ max_slices = H264_MAX_THREADS;
+ av_log(h->avctx, AV_LOG_WARNING, "too many threads/slices %d,"
+ " reducing to %d\n", nb_slices, max_slices);
+ nb_slices = max_slices;
+ }
+ h->slice_context_count = nb_slices;
+
+ if (!HAVE_THREADS || !(h->avctx->active_thread_type & FF_THREAD_SLICE)) {
+ ret = ff_h264_context_init(h);
+ if (ret < 0) {
+ av_log(h->avctx, AV_LOG_ERROR, "context_init() failed.\n");
+ return ret;
+ }
+ } else {
+ for (i = 1; i < h->slice_context_count; i++) {
+ H264Context *c;
+ c = h->thread_context[i] = av_mallocz(sizeof(H264Context));
+ if (!c)
+ return AVERROR(ENOMEM);
+ c->avctx = h->avctx;
+ c->dsp = h->dsp;
+ c->vdsp = h->vdsp;
+ c->h264dsp = h->h264dsp;
+ c->h264qpel = h->h264qpel;
+ c->h264chroma = h->h264chroma;
+ c->sps = h->sps;
+ c->pps = h->pps;
+ c->pixel_shift = h->pixel_shift;
+ c->width = h->width;
+ c->height = h->height;
+ c->linesize = h->linesize;
+ c->uvlinesize = h->uvlinesize;
+ c->chroma_x_shift = h->chroma_x_shift;
+ c->chroma_y_shift = h->chroma_y_shift;
+ c->qscale = h->qscale;
+ c->droppable = h->droppable;
+ c->data_partitioning = h->data_partitioning;
+ c->low_delay = h->low_delay;
+ c->mb_width = h->mb_width;
+ c->mb_height = h->mb_height;
+ c->mb_stride = h->mb_stride;
+ c->mb_num = h->mb_num;
+ c->flags = h->flags;
+ c->workaround_bugs = h->workaround_bugs;
+ c->pict_type = h->pict_type;
+
+ init_scan_tables(c);
+ clone_tables(c, h, i);
+ c->context_initialized = 1;
+ }
+
+ for (i = 0; i < h->slice_context_count; i++)
+ if ((ret = ff_h264_context_init(h->thread_context[i])) < 0) {
+ av_log(h->avctx, AV_LOG_ERROR, "context_init() failed.\n");
+ return ret;
+ }
+ }
+
+ h->context_initialized = 1;
+
+ return 0;
+}
+
+/**
+ * Decode a slice header.
+ * This will (re)intialize the decoder and call h264_frame_start() as needed.
+ *
+ * @param h h264context
+ * @param h0 h264 master context (differs from 'h' when doing sliced based
+ * parallel decoding)
+ *
+ * @return 0 if okay, <0 if an error occurred, 1 if decoding must not be multithreaded
+ */
+int ff_h264_decode_slice_header(H264Context *h, H264Context *h0)
+{
+ unsigned int first_mb_in_slice;
+ unsigned int pps_id;
+ int ret;
+ unsigned int slice_type, tmp, i, j;
+ int default_ref_list_done = 0;
+ int last_pic_structure, last_pic_droppable;
+ int needs_reinit = 0;
+ int field_pic_flag, bottom_field_flag;
+
+ h->qpel_put = h->h264qpel.put_h264_qpel_pixels_tab;
+ h->qpel_avg = h->h264qpel.avg_h264_qpel_pixels_tab;
+
+ first_mb_in_slice = get_ue_golomb(&h->gb);
+
+ if (first_mb_in_slice == 0) { // FIXME better field boundary detection
+ if (h0->current_slice && h->cur_pic_ptr && FIELD_PICTURE(h)) {
+ ff_h264_field_end(h, 1);
+ }
+
+ h0->current_slice = 0;
+ if (!h0->first_field) {
+ if (h->cur_pic_ptr && !h->droppable) {
+ ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX,
+ h->picture_structure == PICT_BOTTOM_FIELD);
+ }
+ h->cur_pic_ptr = NULL;
+ }
+ }
+
+ slice_type = get_ue_golomb_31(&h->gb);
+ if (slice_type > 9) {
+ av_log(h->avctx, AV_LOG_ERROR,
+ "slice type %d too large at %d %d\n",
+ slice_type, h->mb_x, h->mb_y);
+ return AVERROR_INVALIDDATA;
+ }
+ if (slice_type > 4) {
+ slice_type -= 5;
+ h->slice_type_fixed = 1;
+ } else
+ h->slice_type_fixed = 0;
+
+ slice_type = golomb_to_pict_type[slice_type];
+ if (slice_type == AV_PICTURE_TYPE_I ||
+ (h0->current_slice != 0 && slice_type == h0->last_slice_type)) {
+ default_ref_list_done = 1;
+ }
+ h->slice_type = slice_type;
+ h->slice_type_nos = slice_type & 3;
+
+ if (h->nal_unit_type == NAL_IDR_SLICE &&
+ h->slice_type_nos != AV_PICTURE_TYPE_I) {
+ av_log(h->avctx, AV_LOG_ERROR, "A non-intra slice in an IDR NAL unit.\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ // to make a few old functions happy, it's wrong though
+ h->pict_type = h->slice_type;
+
+ pps_id = get_ue_golomb(&h->gb);
+ if (pps_id >= MAX_PPS_COUNT) {
+ av_log(h->avctx, AV_LOG_ERROR, "pps_id %u out of range\n", pps_id);
+ return AVERROR_INVALIDDATA;
+ }
+ if (!h0->pps_buffers[pps_id]) {
+ av_log(h->avctx, AV_LOG_ERROR,
+ "non-existing PPS %u referenced\n",
+ pps_id);
+ return AVERROR_INVALIDDATA;
+ }
+ h->pps = *h0->pps_buffers[pps_id];
+
+ if (!h0->sps_buffers[h->pps.sps_id]) {
+ av_log(h->avctx, AV_LOG_ERROR,
+ "non-existing SPS %u referenced\n",
+ h->pps.sps_id);
+ return AVERROR_INVALIDDATA;
+ }
+
+ if (h->pps.sps_id != h->sps.sps_id ||
+ h0->sps_buffers[h->pps.sps_id]->new) {
+ h0->sps_buffers[h->pps.sps_id]->new = 0;
+
+ h->sps = *h0->sps_buffers[h->pps.sps_id];
+
+ if (h->bit_depth_luma != h->sps.bit_depth_luma ||
+ h->chroma_format_idc != h->sps.chroma_format_idc) {
+ h->bit_depth_luma = h->sps.bit_depth_luma;
+ h->chroma_format_idc = h->sps.chroma_format_idc;
+ needs_reinit = 1;
+ }
+ if ((ret = ff_h264_set_parameter_from_sps(h)) < 0)
+ return ret;
+ }
+
+ h->avctx->profile = ff_h264_get_profile(&h->sps);
+ h->avctx->level = h->sps.level_idc;
+ h->avctx->refs = h->sps.ref_frame_count;
+
+ if (h->mb_width != h->sps.mb_width ||
+ h->mb_height != h->sps.mb_height * (2 - h->sps.frame_mbs_only_flag))
+ needs_reinit = 1;
+
+ h->mb_width = h->sps.mb_width;
+ h->mb_height = h->sps.mb_height * (2 - h->sps.frame_mbs_only_flag);
+ h->mb_num = h->mb_width * h->mb_height;
+ h->mb_stride = h->mb_width + 1;
+
+ h->b_stride = h->mb_width * 4;
+
+ h->chroma_y_shift = h->sps.chroma_format_idc <= 1; // 400 uses yuv420p
+
+ h->width = 16 * h->mb_width;
+ h->height = 16 * h->mb_height;
+
+ ret = init_dimensions(h);
+ if (ret < 0)
+ return ret;
+
+ if (h->sps.video_signal_type_present_flag) {
+ h->avctx->color_range = h->sps.full_range ? AVCOL_RANGE_JPEG
+ : AVCOL_RANGE_MPEG;
+ if (h->sps.colour_description_present_flag) {
+ if (h->avctx->colorspace != h->sps.colorspace)
+ needs_reinit = 1;
+ h->avctx->color_primaries = h->sps.color_primaries;
+ h->avctx->color_trc = h->sps.color_trc;
+ h->avctx->colorspace = h->sps.colorspace;
+ }
+ }
+
+ if (h->context_initialized &&
+ (h->width != h->avctx->coded_width ||
+ h->height != h->avctx->coded_height ||
+ needs_reinit)) {
+ if (h != h0) {
+ av_log(h->avctx, AV_LOG_ERROR,
+ "changing width %d -> %d / height %d -> %d on "
+ "slice %d\n",
+ h->width, h->avctx->coded_width,
+ h->height, h->avctx->coded_height,
+ h0->current_slice + 1);
+ return AVERROR_INVALIDDATA;
+ }
+
+ ff_h264_flush_change(h);
+
+ if ((ret = get_pixel_format(h)) < 0)
+ return ret;
+ h->avctx->pix_fmt = ret;
+
+ av_log(h->avctx, AV_LOG_INFO, "Reinit context to %dx%d, "
+ "pix_fmt: %d\n", h->width, h->height, h->avctx->pix_fmt);
+
+ if ((ret = h264_slice_header_init(h, 1)) < 0) {
+ av_log(h->avctx, AV_LOG_ERROR,
+ "h264_slice_header_init() failed\n");
+ return ret;
+ }
+ }
+ if (!h->context_initialized) {
+ if (h != h0) {
+ av_log(h->avctx, AV_LOG_ERROR,
+ "Cannot (re-)initialize context during parallel decoding.\n");
+ return AVERROR_PATCHWELCOME;
+ }
+
+ if ((ret = get_pixel_format(h)) < 0)
+ return ret;
+ h->avctx->pix_fmt = ret;
+
+ if ((ret = h264_slice_header_init(h, 0)) < 0) {
+ av_log(h->avctx, AV_LOG_ERROR,
+ "h264_slice_header_init() failed\n");
+ return ret;
+ }
+ }
+
+ if (h == h0 && h->dequant_coeff_pps != pps_id) {
+ h->dequant_coeff_pps = pps_id;
+ h264_init_dequant_tables(h);
+ }
+
+ h->frame_num = get_bits(&h->gb, h->sps.log2_max_frame_num);
+
+ h->mb_mbaff = 0;
+ h->mb_aff_frame = 0;
+ last_pic_structure = h0->picture_structure;
+ last_pic_droppable = h0->droppable;
+ h->droppable = h->nal_ref_idc == 0;
+ if (h->sps.frame_mbs_only_flag) {
+ h->picture_structure = PICT_FRAME;
+ } else {
+ field_pic_flag = get_bits1(&h->gb);
+ if (field_pic_flag) {
+ bottom_field_flag = get_bits1(&h->gb);
+ h->picture_structure = PICT_TOP_FIELD + bottom_field_flag;
+ } else {
+ h->picture_structure = PICT_FRAME;
+ h->mb_aff_frame = h->sps.mb_aff;
+ }
+ }
+ h->mb_field_decoding_flag = h->picture_structure != PICT_FRAME;
+
+ if (h0->current_slice != 0) {
+ if (last_pic_structure != h->picture_structure ||
+ last_pic_droppable != h->droppable) {
+ av_log(h->avctx, AV_LOG_ERROR,
+ "Changing field mode (%d -> %d) between slices is not allowed\n",
+ last_pic_structure, h->picture_structure);
+ h->picture_structure = last_pic_structure;
+ h->droppable = last_pic_droppable;
+ return AVERROR_INVALIDDATA;
+ } else if (!h0->cur_pic_ptr) {
+ av_log(h->avctx, AV_LOG_ERROR,
+ "unset cur_pic_ptr on slice %d\n",
+ h0->current_slice + 1);
+ return AVERROR_INVALIDDATA;
+ }
+ } else {
+ /* Shorten frame num gaps so we don't have to allocate reference
+ * frames just to throw them away */
+ if (h->frame_num != h->prev_frame_num) {
+ int unwrap_prev_frame_num = h->prev_frame_num;
+ int max_frame_num = 1 << h->sps.log2_max_frame_num;
+
+ if (unwrap_prev_frame_num > h->frame_num)
+ unwrap_prev_frame_num -= max_frame_num;
+
+ if ((h->frame_num - unwrap_prev_frame_num) > h->sps.ref_frame_count) {
+ unwrap_prev_frame_num = (h->frame_num - h->sps.ref_frame_count) - 1;
+ if (unwrap_prev_frame_num < 0)
+ unwrap_prev_frame_num += max_frame_num;
+
+ h->prev_frame_num = unwrap_prev_frame_num;
+ }
+ }
+
+ /* See if we have a decoded first field looking for a pair...
+ * Here, we're using that to see if we should mark previously
+ * decode frames as "finished".
+ * We have to do that before the "dummy" in-between frame allocation,
+ * since that can modify s->current_picture_ptr. */
+ if (h0->first_field) {
+ assert(h0->cur_pic_ptr);
+ assert(h0->cur_pic_ptr->f.buf[0]);
+ assert(h0->cur_pic_ptr->reference != DELAYED_PIC_REF);
+
+ /* figure out if we have a complementary field pair */
+ if (!FIELD_PICTURE(h) || h->picture_structure == last_pic_structure) {
+ /* Previous field is unmatched. Don't display it, but let it
+ * remain for reference if marked as such. */
+ if (!last_pic_droppable && last_pic_structure != PICT_FRAME) {
+ ff_thread_report_progress(&h0->cur_pic_ptr->tf, INT_MAX,
+ last_pic_structure == PICT_TOP_FIELD);
+ }
+ } else {
+ if (h0->cur_pic_ptr->frame_num != h->frame_num) {
+ /* This and previous field were reference, but had
+ * different frame_nums. Consider this field first in
+ * pair. Throw away previous field except for reference
+ * purposes. */
+ if (!last_pic_droppable && last_pic_structure != PICT_FRAME) {
+ ff_thread_report_progress(&h0->cur_pic_ptr->tf, INT_MAX,
+ last_pic_structure == PICT_TOP_FIELD);
+ }
+ } else {
+ /* Second field in complementary pair */
+ if (!((last_pic_structure == PICT_TOP_FIELD &&
+ h->picture_structure == PICT_BOTTOM_FIELD) ||
+ (last_pic_structure == PICT_BOTTOM_FIELD &&
+ h->picture_structure == PICT_TOP_FIELD))) {
+ av_log(h->avctx, AV_LOG_ERROR,
+ "Invalid field mode combination %d/%d\n",
+ last_pic_structure, h->picture_structure);
+ h->picture_structure = last_pic_structure;
+ h->droppable = last_pic_droppable;
+ return AVERROR_INVALIDDATA;
+ } else if (last_pic_droppable != h->droppable) {
+ avpriv_request_sample(h->avctx,
+ "Found reference and non-reference fields in the same frame, which");
+ h->picture_structure = last_pic_structure;
+ h->droppable = last_pic_droppable;
+ return AVERROR_PATCHWELCOME;
+ }
+ }
+ }
+ }
+
+ while (h->frame_num != h->prev_frame_num &&
+ h->frame_num != (h->prev_frame_num + 1) % (1 << h->sps.log2_max_frame_num)) {
+ H264Picture *prev = h->short_ref_count ? h->short_ref[0] : NULL;
+ av_log(h->avctx, AV_LOG_DEBUG, "Frame num gap %d %d\n",
+ h->frame_num, h->prev_frame_num);
+ ret = h264_frame_start(h);
+ if (ret < 0) {
+ h0->first_field = 0;
+ return ret;
+ }
+
+ h->prev_frame_num++;
+ h->prev_frame_num %= 1 << h->sps.log2_max_frame_num;
+ h->cur_pic_ptr->frame_num = h->prev_frame_num;
+ ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 0);
+ ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 1);
+ ret = ff_generate_sliding_window_mmcos(h, 1);
+ if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
+ return ret;
+ ret = ff_h264_execute_ref_pic_marking(h, h->mmco, h->mmco_index);
+ if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
+ return ret;
+ /* Error concealment: If a ref is missing, copy the previous ref
+ * in its place.
+ * FIXME: Avoiding a memcpy would be nice, but ref handling makes
+ * many assumptions about there being no actual duplicates.
+ * FIXME: This does not copy padding for out-of-frame motion
+ * vectors. Given we are concealing a lost frame, this probably
+ * is not noticeable by comparison, but it should be fixed. */
+ if (h->short_ref_count) {
+ if (prev) {
+ av_image_copy(h->short_ref[0]->f.data,
+ h->short_ref[0]->f.linesize,
+ (const uint8_t **)prev->f.data,
+ prev->f.linesize,
+ h->avctx->pix_fmt,
+ h->mb_width * 16,
+ h->mb_height * 16);
+ h->short_ref[0]->poc = prev->poc + 2;
+ }
+ h->short_ref[0]->frame_num = h->prev_frame_num;
+ }
+ }
+
+ /* See if we have a decoded first field looking for a pair...
+ * We're using that to see whether to continue decoding in that
+ * frame, or to allocate a new one. */
+ if (h0->first_field) {
+ assert(h0->cur_pic_ptr);
+ assert(h0->cur_pic_ptr->f.buf[0]);
+ assert(h0->cur_pic_ptr->reference != DELAYED_PIC_REF);
+
+ /* figure out if we have a complementary field pair */
+ if (!FIELD_PICTURE(h) || h->picture_structure == last_pic_structure) {
+ /* Previous field is unmatched. Don't display it, but let it
+ * remain for reference if marked as such. */
+ h0->cur_pic_ptr = NULL;
+ h0->first_field = FIELD_PICTURE(h);
+ } else {
+ if (h0->cur_pic_ptr->frame_num != h->frame_num) {
+ /* This and the previous field had different frame_nums.
+ * Consider this field first in pair. Throw away previous
+ * one except for reference purposes. */
+ h0->first_field = 1;
+ h0->cur_pic_ptr = NULL;
+ } else {
+ /* Second field in complementary pair */
+ h0->first_field = 0;
+ }
+ }
+ } else {
+ /* Frame or first field in a potentially complementary pair */
+ h0->first_field = FIELD_PICTURE(h);
+ }
+
+ if (!FIELD_PICTURE(h) || h0->first_field) {
+ if (h264_frame_start(h) < 0) {
+ h0->first_field = 0;
+ return AVERROR_INVALIDDATA;
+ }
+ } else {
+ release_unused_pictures(h, 0);
+ }
+ }
+ if (h != h0 && (ret = clone_slice(h, h0)) < 0)
+ return ret;
+
+ h->cur_pic_ptr->frame_num = h->frame_num; // FIXME frame_num cleanup
+
+ assert(h->mb_num == h->mb_width * h->mb_height);
+ if (first_mb_in_slice << FIELD_OR_MBAFF_PICTURE(h) >= h->mb_num ||
+ first_mb_in_slice >= h->mb_num) {
+ av_log(h->avctx, AV_LOG_ERROR, "first_mb_in_slice overflow\n");
+ return AVERROR_INVALIDDATA;
+ }
+ h->resync_mb_x = h->mb_x = first_mb_in_slice % h->mb_width;
+ h->resync_mb_y = h->mb_y = (first_mb_in_slice / h->mb_width) <<
+ FIELD_OR_MBAFF_PICTURE(h);
+ if (h->picture_structure == PICT_BOTTOM_FIELD)
+ h->resync_mb_y = h->mb_y = h->mb_y + 1;
+ assert(h->mb_y < h->mb_height);
+
+ if (h->picture_structure == PICT_FRAME) {
+ h->curr_pic_num = h->frame_num;
+ h->max_pic_num = 1 << h->sps.log2_max_frame_num;
+ } else {
+ h->curr_pic_num = 2 * h->frame_num + 1;
+ h->max_pic_num = 1 << (h->sps.log2_max_frame_num + 1);
+ }
+
+ if (h->nal_unit_type == NAL_IDR_SLICE)
+ get_ue_golomb(&h->gb); /* idr_pic_id */
+
+ if (h->sps.poc_type == 0) {
+ h->poc_lsb = get_bits(&h->gb, h->sps.log2_max_poc_lsb);
+
+ if (h->pps.pic_order_present == 1 && h->picture_structure == PICT_FRAME)
+ h->delta_poc_bottom = get_se_golomb(&h->gb);
+ }
+
+ if (h->sps.poc_type == 1 && !h->sps.delta_pic_order_always_zero_flag) {
+ h->delta_poc[0] = get_se_golomb(&h->gb);
+
+ if (h->pps.pic_order_present == 1 && h->picture_structure == PICT_FRAME)
+ h->delta_poc[1] = get_se_golomb(&h->gb);
+ }
+
+ ff_init_poc(h, h->cur_pic_ptr->field_poc, &h->cur_pic_ptr->poc);
+
+ if (h->pps.redundant_pic_cnt_present)
+ h->redundant_pic_count = get_ue_golomb(&h->gb);
+
+ ret = ff_set_ref_count(h);
+ if (ret < 0)
+ return ret;
+ else if (ret == 1)
+ default_ref_list_done = 0;
+
+ if (!default_ref_list_done)
+ ff_h264_fill_default_ref_list(h);
+
+ if (h->slice_type_nos != AV_PICTURE_TYPE_I) {
+ ret = ff_h264_decode_ref_pic_list_reordering(h);
+ if (ret < 0) {
+ h->ref_count[1] = h->ref_count[0] = 0;
+ return ret;
+ }
+ }
+
+ if ((h->pps.weighted_pred && h->slice_type_nos == AV_PICTURE_TYPE_P) ||
+ (h->pps.weighted_bipred_idc == 1 &&
+ h->slice_type_nos == AV_PICTURE_TYPE_B))
+ ff_pred_weight_table(h);
+ else if (h->pps.weighted_bipred_idc == 2 &&
+ h->slice_type_nos == AV_PICTURE_TYPE_B) {
+ implicit_weight_table(h, -1);
+ } else {
+ h->use_weight = 0;
+ for (i = 0; i < 2; i++) {
+ h->luma_weight_flag[i] = 0;
+ h->chroma_weight_flag[i] = 0;
+ }
+ }
+
+ // If frame-mt is enabled, only update mmco tables for the first slice
+ // in a field. Subsequent slices can temporarily clobber h->mmco_index
+ // or h->mmco, which will cause ref list mix-ups and decoding errors
+ // further down the line. This may break decoding if the first slice is
+ // corrupt, thus we only do this if frame-mt is enabled.
+ if (h->nal_ref_idc) {
+ ret = ff_h264_decode_ref_pic_marking(h0, &h->gb,
+ !(h->avctx->active_thread_type & FF_THREAD_FRAME) ||
+ h0->current_slice == 0);
+ if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE))
+ return AVERROR_INVALIDDATA;
+ }
+
+ if (FRAME_MBAFF(h)) {
+ ff_h264_fill_mbaff_ref_list(h);
+
+ if (h->pps.weighted_bipred_idc == 2 && h->slice_type_nos == AV_PICTURE_TYPE_B) {
+ implicit_weight_table(h, 0);
+ implicit_weight_table(h, 1);
+ }
+ }
+
+ if (h->slice_type_nos == AV_PICTURE_TYPE_B && !h->direct_spatial_mv_pred)
+ ff_h264_direct_dist_scale_factor(h);
+ ff_h264_direct_ref_list_init(h);
+
+ if (h->slice_type_nos != AV_PICTURE_TYPE_I && h->pps.cabac) {
+ tmp = get_ue_golomb_31(&h->gb);
+ if (tmp > 2) {
+ av_log(h->avctx, AV_LOG_ERROR, "cabac_init_idc %u overflow\n", tmp);
+ return AVERROR_INVALIDDATA;
+ }
+ h->cabac_init_idc = tmp;
+ }
+
+ h->last_qscale_diff = 0;
+ tmp = h->pps.init_qp + get_se_golomb(&h->gb);
+ if (tmp > 51 + 6 * (h->sps.bit_depth_luma - 8)) {
+ av_log(h->avctx, AV_LOG_ERROR, "QP %u out of range\n", tmp);
+ return AVERROR_INVALIDDATA;
+ }
+ h->qscale = tmp;
+ h->chroma_qp[0] = get_chroma_qp(h, 0, h->qscale);
+ h->chroma_qp[1] = get_chroma_qp(h, 1, h->qscale);
+ // FIXME qscale / qp ... stuff
+ if (h->slice_type == AV_PICTURE_TYPE_SP)
+ get_bits1(&h->gb); /* sp_for_switch_flag */
+ if (h->slice_type == AV_PICTURE_TYPE_SP ||
+ h->slice_type == AV_PICTURE_TYPE_SI)
+ get_se_golomb(&h->gb); /* slice_qs_delta */
+
+ h->deblocking_filter = 1;
+ h->slice_alpha_c0_offset = 0;
+ h->slice_beta_offset = 0;
+ if (h->pps.deblocking_filter_parameters_present) {
+ tmp = get_ue_golomb_31(&h->gb);
+ if (tmp > 2) {
+ av_log(h->avctx, AV_LOG_ERROR,
+ "deblocking_filter_idc %u out of range\n", tmp);
+ return AVERROR_INVALIDDATA;
+ }
+ h->deblocking_filter = tmp;
+ if (h->deblocking_filter < 2)
+ h->deblocking_filter ^= 1; // 1<->0
+
+ if (h->deblocking_filter) {
+ h->slice_alpha_c0_offset = get_se_golomb(&h->gb) * 2;
+ h->slice_beta_offset = get_se_golomb(&h->gb) * 2;
+ if (h->slice_alpha_c0_offset > 12 ||
+ h->slice_alpha_c0_offset < -12 ||
+ h->slice_beta_offset > 12 ||
+ h->slice_beta_offset < -12) {
+ av_log(h->avctx, AV_LOG_ERROR,
+ "deblocking filter parameters %d %d out of range\n",
+ h->slice_alpha_c0_offset, h->slice_beta_offset);
+ return AVERROR_INVALIDDATA;
+ }
+ }
+ }
+
+ if (h->avctx->skip_loop_filter >= AVDISCARD_ALL ||
+ (h->avctx->skip_loop_filter >= AVDISCARD_NONKEY &&
+ h->slice_type_nos != AV_PICTURE_TYPE_I) ||
+ (h->avctx->skip_loop_filter >= AVDISCARD_BIDIR &&
+ h->slice_type_nos == AV_PICTURE_TYPE_B) ||
+ (h->avctx->skip_loop_filter >= AVDISCARD_NONREF &&
+ h->nal_ref_idc == 0))
+ h->deblocking_filter = 0;
+
+ if (h->deblocking_filter == 1 && h0->max_contexts > 1) {
+ if (h->avctx->flags2 & CODEC_FLAG2_FAST) {
+ /* Cheat slightly for speed:
+ * Do not bother to deblock across slices. */
+ h->deblocking_filter = 2;
+ } else {
+ h0->max_contexts = 1;
+ if (!h0->single_decode_warning) {
+ av_log(h->avctx, AV_LOG_INFO,
+ "Cannot parallelize deblocking type 1, decoding such frames in sequential order\n");
+ h0->single_decode_warning = 1;
+ }
+ if (h != h0) {
+ av_log(h->avctx, AV_LOG_ERROR,
+ "Deblocking switched inside frame.\n");
+ return 1;
+ }
+ }
+ }
+ h->qp_thresh = 15 -
+ FFMIN(h->slice_alpha_c0_offset, h->slice_beta_offset) -
+ FFMAX3(0,
+ h->pps.chroma_qp_index_offset[0],
+ h->pps.chroma_qp_index_offset[1]) +
+ 6 * (h->sps.bit_depth_luma - 8);
+
+ h0->last_slice_type = slice_type;
+ h->slice_num = ++h0->current_slice;
+ if (h->slice_num >= MAX_SLICES) {
+ av_log(h->avctx, AV_LOG_ERROR,
+ "Too many slices, increase MAX_SLICES and recompile\n");
+ }
+
+ for (j = 0; j < 2; j++) {
+ int id_list[16];
+ int *ref2frm = h->ref2frm[h->slice_num & (MAX_SLICES - 1)][j];
+ for (i = 0; i < 16; i++) {
+ id_list[i] = 60;
+ if (j < h->list_count && i < h->ref_count[j] &&
+ h->ref_list[j][i].f.buf[0]) {
+ int k;
+ AVBuffer *buf = h->ref_list[j][i].f.buf[0]->buffer;
+ for (k = 0; k < h->short_ref_count; k++)
+ if (h->short_ref[k]->f.buf[0]->buffer == buf) {
+ id_list[i] = k;
+ break;
+ }
+ for (k = 0; k < h->long_ref_count; k++)
+ if (h->long_ref[k] && h->long_ref[k]->f.buf[0]->buffer == buf) {
+ id_list[i] = h->short_ref_count + k;
+ break;
+ }
+ }
+ }
+
+ ref2frm[0] =
+ ref2frm[1] = -1;
+ for (i = 0; i < 16; i++)
+ ref2frm[i + 2] = 4 * id_list[i] + (h->ref_list[j][i].reference & 3);
+ ref2frm[18 + 0] =
+ ref2frm[18 + 1] = -1;
+ for (i = 16; i < 48; i++)
+ ref2frm[i + 4] = 4 * id_list[(i - 16) >> 1] +
+ (h->ref_list[j][i].reference & 3);
+ }
+
+ if (h->avctx->debug & FF_DEBUG_PICT_INFO) {
+ av_log(h->avctx, AV_LOG_DEBUG,
+ "slice:%d %s mb:%d %c%s%s pps:%u frame:%d poc:%d/%d ref:%d/%d qp:%d loop:%d:%d:%d weight:%d%s %s\n",
+ h->slice_num,
+ (h->picture_structure == PICT_FRAME ? "F" : h->picture_structure == PICT_TOP_FIELD ? "T" : "B"),
+ first_mb_in_slice,
+ av_get_picture_type_char(h->slice_type),
+ h->slice_type_fixed ? " fix" : "",
+ h->nal_unit_type == NAL_IDR_SLICE ? " IDR" : "",
+ pps_id, h->frame_num,
+ h->cur_pic_ptr->field_poc[0],
+ h->cur_pic_ptr->field_poc[1],
+ h->ref_count[0], h->ref_count[1],
+ h->qscale,
+ h->deblocking_filter,
+ h->slice_alpha_c0_offset, h->slice_beta_offset,
+ h->use_weight,
+ h->use_weight == 1 && h->use_weight_chroma ? "c" : "",
+ h->slice_type == AV_PICTURE_TYPE_B ? (h->direct_spatial_mv_pred ? "SPAT" : "TEMP") : "");
+ }
+
+ return 0;
+}
+
+int ff_h264_get_slice_type(const H264Context *h)
+{
+ switch (h->slice_type) {
+ case AV_PICTURE_TYPE_P:
+ return 0;
+ case AV_PICTURE_TYPE_B:
+ return 1;
+ case AV_PICTURE_TYPE_I:
+ return 2;
+ case AV_PICTURE_TYPE_SP:
+ return 3;
+ case AV_PICTURE_TYPE_SI:
+ return 4;
+ default:
+ return AVERROR_INVALIDDATA;
+ }
+}
+
+static av_always_inline void fill_filter_caches_inter(H264Context *h,
+ int mb_type, int top_xy,
+ int left_xy[LEFT_MBS],
+ int top_type,
+ int left_type[LEFT_MBS],
+ int mb_xy, int list)
+{
+ int b_stride = h->b_stride;
+ int16_t(*mv_dst)[2] = &h->mv_cache[list][scan8[0]];
+ int8_t *ref_cache = &h->ref_cache[list][scan8[0]];
+ if (IS_INTER(mb_type) || IS_DIRECT(mb_type)) {
+ if (USES_LIST(top_type, list)) {
+ const int b_xy = h->mb2b_xy[top_xy] + 3 * b_stride;
+ const int b8_xy = 4 * top_xy + 2;
+ int (*ref2frm)[64] = h->ref2frm[h->slice_table[top_xy] & (MAX_SLICES - 1)][0] + (MB_MBAFF(h) ? 20 : 2);
+ AV_COPY128(mv_dst - 1 * 8, h->cur_pic.motion_val[list][b_xy + 0]);
+ ref_cache[0 - 1 * 8] =
+ ref_cache[1 - 1 * 8] = ref2frm[list][h->cur_pic.ref_index[list][b8_xy + 0]];
+ ref_cache[2 - 1 * 8] =
+ ref_cache[3 - 1 * 8] = ref2frm[list][h->cur_pic.ref_index[list][b8_xy + 1]];
+ } else {
+ AV_ZERO128(mv_dst - 1 * 8);
+ AV_WN32A(&ref_cache[0 - 1 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
+ }
+
+ if (!IS_INTERLACED(mb_type ^ left_type[LTOP])) {
+ if (USES_LIST(left_type[LTOP], list)) {
+ const int b_xy = h->mb2b_xy[left_xy[LTOP]] + 3;
+ const int b8_xy = 4 * left_xy[LTOP] + 1;
+ int (*ref2frm)[64] = h->ref2frm[h->slice_table[left_xy[LTOP]] & (MAX_SLICES - 1)][0] + (MB_MBAFF(h) ? 20 : 2);
+ AV_COPY32(mv_dst - 1 + 0, h->cur_pic.motion_val[list][b_xy + b_stride * 0]);
+ AV_COPY32(mv_dst - 1 + 8, h->cur_pic.motion_val[list][b_xy + b_stride * 1]);
+ AV_COPY32(mv_dst - 1 + 16, h->cur_pic.motion_val[list][b_xy + b_stride * 2]);
+ AV_COPY32(mv_dst - 1 + 24, h->cur_pic.motion_val[list][b_xy + b_stride * 3]);
+ ref_cache[-1 + 0] =
+ ref_cache[-1 + 8] = ref2frm[list][h->cur_pic.ref_index[list][b8_xy + 2 * 0]];
+ ref_cache[-1 + 16] =
+ ref_cache[-1 + 24] = ref2frm[list][h->cur_pic.ref_index[list][b8_xy + 2 * 1]];
+ } else {
+ AV_ZERO32(mv_dst - 1 + 0);
+ AV_ZERO32(mv_dst - 1 + 8);
+ AV_ZERO32(mv_dst - 1 + 16);
+ AV_ZERO32(mv_dst - 1 + 24);
+ ref_cache[-1 + 0] =
+ ref_cache[-1 + 8] =
+ ref_cache[-1 + 16] =
+ ref_cache[-1 + 24] = LIST_NOT_USED;
+ }
+ }
+ }
+
+ if (!USES_LIST(mb_type, list)) {
+ fill_rectangle(mv_dst, 4, 4, 8, pack16to32(0, 0), 4);
+ AV_WN32A(&ref_cache[0 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
+ AV_WN32A(&ref_cache[1 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
+ AV_WN32A(&ref_cache[2 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
+ AV_WN32A(&ref_cache[3 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u);
+ return;
+ }
+
+ {
+ int8_t *ref = &h->cur_pic.ref_index[list][4 * mb_xy];
+ int (*ref2frm)[64] = h->ref2frm[h->slice_num & (MAX_SLICES - 1)][0] + (MB_MBAFF(h) ? 20 : 2);
+ uint32_t ref01 = (pack16to32(ref2frm[list][ref[0]], ref2frm[list][ref[1]]) & 0x00FF00FF) * 0x0101;
+ uint32_t ref23 = (pack16to32(ref2frm[list][ref[2]], ref2frm[list][ref[3]]) & 0x00FF00FF) * 0x0101;
+ AV_WN32A(&ref_cache[0 * 8], ref01);
+ AV_WN32A(&ref_cache[1 * 8], ref01);
+ AV_WN32A(&ref_cache[2 * 8], ref23);
+ AV_WN32A(&ref_cache[3 * 8], ref23);
+ }
+
+ {
+ int16_t(*mv_src)[2] = &h->cur_pic.motion_val[list][4 * h->mb_x + 4 * h->mb_y * b_stride];
+ AV_COPY128(mv_dst + 8 * 0, mv_src + 0 * b_stride);
+ AV_COPY128(mv_dst + 8 * 1, mv_src + 1 * b_stride);
+ AV_COPY128(mv_dst + 8 * 2, mv_src + 2 * b_stride);
+ AV_COPY128(mv_dst + 8 * 3, mv_src + 3 * b_stride);
+ }
+}
+
+/**
+ *
+ * @return non zero if the loop filter can be skipped
+ */
+static int fill_filter_caches(H264Context *h, int mb_type)
+{
+ const int mb_xy = h->mb_xy;
+ int top_xy, left_xy[LEFT_MBS];
+ int top_type, left_type[LEFT_MBS];
+ uint8_t *nnz;
+ uint8_t *nnz_cache;
+
+ top_xy = mb_xy - (h->mb_stride << MB_FIELD(h));
+
+ /* Wow, what a mess, why didn't they simplify the interlacing & intra
+ * stuff, I can't imagine that these complex rules are worth it. */
+
+ left_xy[LBOT] = left_xy[LTOP] = mb_xy - 1;
+ if (FRAME_MBAFF(h)) {
+ const int left_mb_field_flag = IS_INTERLACED(h->cur_pic.mb_type[mb_xy - 1]);
+ const int curr_mb_field_flag = IS_INTERLACED(mb_type);
+ if (h->mb_y & 1) {
+ if (left_mb_field_flag != curr_mb_field_flag)
+ left_xy[LTOP] -= h->mb_stride;
+ } else {
+ if (curr_mb_field_flag)
+ top_xy += h->mb_stride &
+ (((h->cur_pic.mb_type[top_xy] >> 7) & 1) - 1);
+ if (left_mb_field_flag != curr_mb_field_flag)
+ left_xy[LBOT] += h->mb_stride;
+ }
+ }
+
+ h->top_mb_xy = top_xy;
+ h->left_mb_xy[LTOP] = left_xy[LTOP];
+ h->left_mb_xy[LBOT] = left_xy[LBOT];
+ {
+ /* For sufficiently low qp, filtering wouldn't do anything.
+ * This is a conservative estimate: could also check beta_offset
+ * and more accurate chroma_qp. */
+ int qp_thresh = h->qp_thresh; // FIXME strictly we should store qp_thresh for each mb of a slice
+ int qp = h->cur_pic.qscale_table[mb_xy];
+ if (qp <= qp_thresh &&
+ (left_xy[LTOP] < 0 ||
+ ((qp + h->cur_pic.qscale_table[left_xy[LTOP]] + 1) >> 1) <= qp_thresh) &&
+ (top_xy < 0 ||
+ ((qp + h->cur_pic.qscale_table[top_xy] + 1) >> 1) <= qp_thresh)) {
+ if (!FRAME_MBAFF(h))
+ return 1;
+ if ((left_xy[LTOP] < 0 ||
+ ((qp + h->cur_pic.qscale_table[left_xy[LBOT]] + 1) >> 1) <= qp_thresh) &&
+ (top_xy < h->mb_stride ||
+ ((qp + h->cur_pic.qscale_table[top_xy - h->mb_stride] + 1) >> 1) <= qp_thresh))
+ return 1;
+ }
+ }
+
+ top_type = h->cur_pic.mb_type[top_xy];
+ left_type[LTOP] = h->cur_pic.mb_type[left_xy[LTOP]];
+ left_type[LBOT] = h->cur_pic.mb_type[left_xy[LBOT]];
+ if (h->deblocking_filter == 2) {
+ if (h->slice_table[top_xy] != h->slice_num)
+ top_type = 0;
+ if (h->slice_table[left_xy[LBOT]] != h->slice_num)
+ left_type[LTOP] = left_type[LBOT] = 0;
+ } else {
+ if (h->slice_table[top_xy] == 0xFFFF)
+ top_type = 0;
+ if (h->slice_table[left_xy[LBOT]] == 0xFFFF)
+ left_type[LTOP] = left_type[LBOT] = 0;
+ }
+ h->top_type = top_type;
+ h->left_type[LTOP] = left_type[LTOP];
+ h->left_type[LBOT] = left_type[LBOT];
+
+ if (IS_INTRA(mb_type))
+ return 0;
+
+ fill_filter_caches_inter(h, mb_type, top_xy, left_xy,
+ top_type, left_type, mb_xy, 0);
+ if (h->list_count == 2)
+ fill_filter_caches_inter(h, mb_type, top_xy, left_xy,
+ top_type, left_type, mb_xy, 1);
+
+ nnz = h->non_zero_count[mb_xy];
+ nnz_cache = h->non_zero_count_cache;
+ AV_COPY32(&nnz_cache[4 + 8 * 1], &nnz[0]);
+ AV_COPY32(&nnz_cache[4 + 8 * 2], &nnz[4]);
+ AV_COPY32(&nnz_cache[4 + 8 * 3], &nnz[8]);
+ AV_COPY32(&nnz_cache[4 + 8 * 4], &nnz[12]);
+ h->cbp = h->cbp_table[mb_xy];
+
+ if (top_type) {
+ nnz = h->non_zero_count[top_xy];
+ AV_COPY32(&nnz_cache[4 + 8 * 0], &nnz[3 * 4]);
+ }
+
+ if (left_type[LTOP]) {
+ nnz = h->non_zero_count[left_xy[LTOP]];
+ nnz_cache[3 + 8 * 1] = nnz[3 + 0 * 4];
+ nnz_cache[3 + 8 * 2] = nnz[3 + 1 * 4];
+ nnz_cache[3 + 8 * 3] = nnz[3 + 2 * 4];
+ nnz_cache[3 + 8 * 4] = nnz[3 + 3 * 4];
+ }
+
+ /* CAVLC 8x8dct requires NNZ values for residual decoding that differ
+ * from what the loop filter needs */
+ if (!CABAC(h) && h->pps.transform_8x8_mode) {
+ if (IS_8x8DCT(top_type)) {
+ nnz_cache[4 + 8 * 0] =
+ nnz_cache[5 + 8 * 0] = (h->cbp_table[top_xy] & 0x4000) >> 12;
+ nnz_cache[6 + 8 * 0] =
+ nnz_cache[7 + 8 * 0] = (h->cbp_table[top_xy] & 0x8000) >> 12;
+ }
+ if (IS_8x8DCT(left_type[LTOP])) {
+ nnz_cache[3 + 8 * 1] =
+ nnz_cache[3 + 8 * 2] = (h->cbp_table[left_xy[LTOP]] & 0x2000) >> 12; // FIXME check MBAFF
+ }
+ if (IS_8x8DCT(left_type[LBOT])) {
+ nnz_cache[3 + 8 * 3] =
+ nnz_cache[3 + 8 * 4] = (h->cbp_table[left_xy[LBOT]] & 0x8000) >> 12; // FIXME check MBAFF
+ }
+
+ if (IS_8x8DCT(mb_type)) {
+ nnz_cache[scan8[0]] =
+ nnz_cache[scan8[1]] =
+ nnz_cache[scan8[2]] =
+ nnz_cache[scan8[3]] = (h->cbp & 0x1000) >> 12;
+
+ nnz_cache[scan8[0 + 4]] =
+ nnz_cache[scan8[1 + 4]] =
+ nnz_cache[scan8[2 + 4]] =
+ nnz_cache[scan8[3 + 4]] = (h->cbp & 0x2000) >> 12;
+
+ nnz_cache[scan8[0 + 8]] =
+ nnz_cache[scan8[1 + 8]] =
+ nnz_cache[scan8[2 + 8]] =
+ nnz_cache[scan8[3 + 8]] = (h->cbp & 0x4000) >> 12;
+
+ nnz_cache[scan8[0 + 12]] =
+ nnz_cache[scan8[1 + 12]] =
+ nnz_cache[scan8[2 + 12]] =
+ nnz_cache[scan8[3 + 12]] = (h->cbp & 0x8000) >> 12;
+ }
+ }
+
+ return 0;
+}
+
+static void loop_filter(H264Context *h, int start_x, int end_x)
+{
+ uint8_t *dest_y, *dest_cb, *dest_cr;
+ int linesize, uvlinesize, mb_x, mb_y;
+ const int end_mb_y = h->mb_y + FRAME_MBAFF(h);
+ const int old_slice_type = h->slice_type;
+ const int pixel_shift = h->pixel_shift;
+ const int block_h = 16 >> h->chroma_y_shift;
+
+ if (h->deblocking_filter) {
+ for (mb_x = start_x; mb_x < end_x; mb_x++)
+ for (mb_y = end_mb_y - FRAME_MBAFF(h); mb_y <= end_mb_y; mb_y++) {
+ int mb_xy, mb_type;
+ mb_xy = h->mb_xy = mb_x + mb_y * h->mb_stride;
+ h->slice_num = h->slice_table[mb_xy];
+ mb_type = h->cur_pic.mb_type[mb_xy];
+ h->list_count = h->list_counts[mb_xy];
+
+ if (FRAME_MBAFF(h))
+ h->mb_mbaff =
+ h->mb_field_decoding_flag = !!IS_INTERLACED(mb_type);
+
+ h->mb_x = mb_x;
+ h->mb_y = mb_y;
+ dest_y = h->cur_pic.f.data[0] +
+ ((mb_x << pixel_shift) + mb_y * h->linesize) * 16;
+ dest_cb = h->cur_pic.f.data[1] +
+ (mb_x << pixel_shift) * (8 << CHROMA444(h)) +
+ mb_y * h->uvlinesize * block_h;
+ dest_cr = h->cur_pic.f.data[2] +
+ (mb_x << pixel_shift) * (8 << CHROMA444(h)) +
+ mb_y * h->uvlinesize * block_h;
+ // FIXME simplify above
+
+ if (MB_FIELD(h)) {
+ linesize = h->mb_linesize = h->linesize * 2;
+ uvlinesize = h->mb_uvlinesize = h->uvlinesize * 2;
+ if (mb_y & 1) { // FIXME move out of this function?
+ dest_y -= h->linesize * 15;
+ dest_cb -= h->uvlinesize * (block_h - 1);
+ dest_cr -= h->uvlinesize * (block_h - 1);
+ }
+ } else {
+ linesize = h->mb_linesize = h->linesize;
+ uvlinesize = h->mb_uvlinesize = h->uvlinesize;
+ }
+ backup_mb_border(h, dest_y, dest_cb, dest_cr, linesize,
+ uvlinesize, 0);
+ if (fill_filter_caches(h, mb_type))
+ continue;
+ h->chroma_qp[0] = get_chroma_qp(h, 0, h->cur_pic.qscale_table[mb_xy]);
+ h->chroma_qp[1] = get_chroma_qp(h, 1, h->cur_pic.qscale_table[mb_xy]);
+
+ if (FRAME_MBAFF(h)) {
+ ff_h264_filter_mb(h, mb_x, mb_y, dest_y, dest_cb, dest_cr,
+ linesize, uvlinesize);
+ } else {
+ ff_h264_filter_mb_fast(h, mb_x, mb_y, dest_y, dest_cb,
+ dest_cr, linesize, uvlinesize);
+ }
+ }
+ }
+ h->slice_type = old_slice_type;
+ h->mb_x = end_x;
+ h->mb_y = end_mb_y - FRAME_MBAFF(h);
+ h->chroma_qp[0] = get_chroma_qp(h, 0, h->qscale);
+ h->chroma_qp[1] = get_chroma_qp(h, 1, h->qscale);
+}
+
+static void predict_field_decoding_flag(H264Context *h)
+{
+ const int mb_xy = h->mb_x + h->mb_y * h->mb_stride;
+ int mb_type = (h->slice_table[mb_xy - 1] == h->slice_num) ?
+ h->cur_pic.mb_type[mb_xy - 1] :
+ (h->slice_table[mb_xy - h->mb_stride] == h->slice_num) ?
+ h->cur_pic.mb_type[mb_xy - h->mb_stride] : 0;
+ h->mb_mbaff = h->mb_field_decoding_flag = IS_INTERLACED(mb_type) ? 1 : 0;
+}
+
+/**
+ * Draw edges and report progress for the last MB row.
+ */
+static void decode_finish_row(H264Context *h)
+{
+ int top = 16 * (h->mb_y >> FIELD_PICTURE(h));
+ int pic_height = 16 * h->mb_height >> FIELD_PICTURE(h);
+ int height = 16 << FRAME_MBAFF(h);
+ int deblock_border = (16 + 4) << FRAME_MBAFF(h);
+
+ if (h->deblocking_filter) {
+ if ((top + height) >= pic_height)
+ height += deblock_border;
+ top -= deblock_border;
+ }
+
+ if (top >= pic_height || (top + height) < 0)
+ return;
+
+ height = FFMIN(height, pic_height - top);
+ if (top < 0) {
+ height = top + height;
+ top = 0;
+ }
+
+ ff_h264_draw_horiz_band(h, top, height);
+
+ if (h->droppable)
+ return;
+
+ ff_thread_report_progress(&h->cur_pic_ptr->tf, top + height - 1,
+ h->picture_structure == PICT_BOTTOM_FIELD);
+}
+
+static void er_add_slice(H264Context *h, int startx, int starty,
+ int endx, int endy, int status)
+{
+#if CONFIG_ERROR_RESILIENCE
+ ERContext *er = &h->er;
+
+ er->ref_count = h->ref_count[0];
+ ff_er_add_slice(er, startx, starty, endx, endy, status);
+#endif
+}
+
+static int decode_slice(struct AVCodecContext *avctx, void *arg)
+{
+ H264Context *h = *(void **)arg;
+ int lf_x_start = h->mb_x;
+
+ h->mb_skip_run = -1;
+
+ h->is_complex = FRAME_MBAFF(h) || h->picture_structure != PICT_FRAME ||
+ avctx->codec_id != AV_CODEC_ID_H264 ||
+ (CONFIG_GRAY && (h->flags & CODEC_FLAG_GRAY));
+
+ if (h->pps.cabac) {
+ /* realign */
+ align_get_bits(&h->gb);
+
+ /* init cabac */
+ ff_init_cabac_decoder(&h->cabac,
+ h->gb.buffer + get_bits_count(&h->gb) / 8,
+ (get_bits_left(&h->gb) + 7) / 8);
+
+ ff_h264_init_cabac_states(h);
+
+ for (;;) {
+ // START_TIMER
+ int ret = ff_h264_decode_mb_cabac(h);
+ int eos;
+ // STOP_TIMER("decode_mb_cabac")
+
+ if (ret >= 0)
+ ff_h264_hl_decode_mb(h);
+
+ // FIXME optimal? or let mb_decode decode 16x32 ?
+ if (ret >= 0 && FRAME_MBAFF(h)) {
+ h->mb_y++;
+
+ ret = ff_h264_decode_mb_cabac(h);
+
+ if (ret >= 0)
+ ff_h264_hl_decode_mb(h);
+ h->mb_y--;
+ }
+ eos = get_cabac_terminate(&h->cabac);
+
+ if ((h->workaround_bugs & FF_BUG_TRUNCATED) &&
+ h->cabac.bytestream > h->cabac.bytestream_end + 2) {
+ er_add_slice(h, h->resync_mb_x, h->resync_mb_y, h->mb_x - 1,
+ h->mb_y, ER_MB_END);
+ if (h->mb_x >= lf_x_start)
+ loop_filter(h, lf_x_start, h->mb_x + 1);
+ return 0;
+ }
+ if (ret < 0 || h->cabac.bytestream > h->cabac.bytestream_end + 2) {
+ av_log(h->avctx, AV_LOG_ERROR,
+ "error while decoding MB %d %d, bytestream %td\n",
+ h->mb_x, h->mb_y,
+ h->cabac.bytestream_end - h->cabac.bytestream);
+ er_add_slice(h, h->resync_mb_x, h->resync_mb_y, h->mb_x,
+ h->mb_y, ER_MB_ERROR);
+ return AVERROR_INVALIDDATA;
+ }
+
+ if (++h->mb_x >= h->mb_width) {
+ loop_filter(h, lf_x_start, h->mb_x);
+ h->mb_x = lf_x_start = 0;
+ decode_finish_row(h);
+ ++h->mb_y;
+ if (FIELD_OR_MBAFF_PICTURE(h)) {
+ ++h->mb_y;
+ if (FRAME_MBAFF(h) && h->mb_y < h->mb_height)
+ predict_field_decoding_flag(h);
+ }
+ }
+
+ if (eos || h->mb_y >= h->mb_height) {
+ tprintf(h->avctx, "slice end %d %d\n",
+ get_bits_count(&h->gb), h->gb.size_in_bits);
+ er_add_slice(h, h->resync_mb_x, h->resync_mb_y, h->mb_x - 1,
+ h->mb_y, ER_MB_END);
+ if (h->mb_x > lf_x_start)
+ loop_filter(h, lf_x_start, h->mb_x);
+ return 0;
+ }
+ }
+ } else {
+ for (;;) {
+ int ret = ff_h264_decode_mb_cavlc(h);
+
+ if (ret >= 0)
+ ff_h264_hl_decode_mb(h);
+
+ // FIXME optimal? or let mb_decode decode 16x32 ?
+ if (ret >= 0 && FRAME_MBAFF(h)) {
+ h->mb_y++;
+ ret = ff_h264_decode_mb_cavlc(h);
+
+ if (ret >= 0)
+ ff_h264_hl_decode_mb(h);
+ h->mb_y--;
+ }
+
+ if (ret < 0) {
+ av_log(h->avctx, AV_LOG_ERROR,
+ "error while decoding MB %d %d\n", h->mb_x, h->mb_y);
+ er_add_slice(h, h->resync_mb_x, h->resync_mb_y, h->mb_x,
+ h->mb_y, ER_MB_ERROR);
+ return ret;
+ }
+
+ if (++h->mb_x >= h->mb_width) {
+ loop_filter(h, lf_x_start, h->mb_x);
+ h->mb_x = lf_x_start = 0;
+ decode_finish_row(h);
+ ++h->mb_y;
+ if (FIELD_OR_MBAFF_PICTURE(h)) {
+ ++h->mb_y;
+ if (FRAME_MBAFF(h) && h->mb_y < h->mb_height)
+ predict_field_decoding_flag(h);
+ }
+ if (h->mb_y >= h->mb_height) {
+ tprintf(h->avctx, "slice end %d %d\n",
+ get_bits_count(&h->gb), h->gb.size_in_bits);
+
+ if (get_bits_left(&h->gb) == 0) {
+ er_add_slice(h, h->resync_mb_x, h->resync_mb_y,
+ h->mb_x - 1, h->mb_y,
+ ER_MB_END);
+
+ return 0;
+ } else {
+ er_add_slice(h, h->resync_mb_x, h->resync_mb_y,
+ h->mb_x - 1, h->mb_y,
+ ER_MB_END);
+
+ return AVERROR_INVALIDDATA;
+ }
+ }
+ }
+
+ if (get_bits_left(&h->gb) <= 0 && h->mb_skip_run <= 0) {
+ tprintf(h->avctx, "slice end %d %d\n",
+ get_bits_count(&h->gb), h->gb.size_in_bits);
+
+ if (get_bits_left(&h->gb) == 0) {
+ er_add_slice(h, h->resync_mb_x, h->resync_mb_y,
+ h->mb_x - 1, h->mb_y,
+ ER_MB_END);
+ if (h->mb_x > lf_x_start)
+ loop_filter(h, lf_x_start, h->mb_x);
+
+ return 0;
+ } else {
+ er_add_slice(h, h->resync_mb_x, h->resync_mb_y, h->mb_x,
+ h->mb_y, ER_MB_ERROR);
+
+ return AVERROR_INVALIDDATA;
+ }
+ }
+ }
+ }
+}
+
+/**
+ * Call decode_slice() for each context.
+ *
+ * @param h h264 master context
+ * @param context_count number of contexts to execute
+ */
+int ff_h264_execute_decode_slices(H264Context *h, unsigned context_count)
+{
+ AVCodecContext *const avctx = h->avctx;
+ H264Context *hx;
+ int i;
+
+ if (h->mb_y >= h->mb_height) {
+ av_log(h->avctx, AV_LOG_ERROR,
+ "Input contains more MB rows than the frame height.\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ if (h->avctx->hwaccel)
+ return 0;
+ if (context_count == 1) {
+ return decode_slice(avctx, &h);
+ } else {
+ for (i = 1; i < context_count; i++) {
+ hx = h->thread_context[i];
+ hx->er.error_count = 0;
+ }
+
+ avctx->execute(avctx, decode_slice, h->thread_context,
+ NULL, context_count, sizeof(void *));
+
+ /* pull back stuff from slices to master context */
+ hx = h->thread_context[context_count - 1];
+ h->mb_x = hx->mb_x;
+ h->mb_y = hx->mb_y;
+ h->droppable = hx->droppable;
+ h->picture_structure = hx->picture_structure;
+ for (i = 1; i < context_count; i++)
+ h->er.error_count += h->thread_context[i]->er.error_count;
+ }
+
+ return 0;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-08 22:26:16 +0000