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Diffstat (limited to 'libavcodec/vp56.c')
-rw-r--r--libavcodec/vp56.c104
1 files changed, 44 insertions, 60 deletions
diff --git a/libavcodec/vp56.c b/libavcodec/vp56.c
index b4af2cac71..00334d1282 100644
--- a/libavcodec/vp56.c
+++ b/libavcodec/vp56.c
@@ -36,7 +36,6 @@ void ff_vp56_init_dequant(VP56Context *s, int quantizer)
s->quantizer = quantizer;
s->dequant_dc = vp56_dc_dequant[quantizer] << 2;
s->dequant_ac = vp56_ac_dequant[quantizer] << 2;
- memset(s->qscale_table, quantizer, s->mb_width);
}
static int vp56_get_vectors_predictors(VP56Context *s, int row, int col,
@@ -314,7 +313,7 @@ static void vp56_deblock_filter(VP56Context *s, uint8_t *yuv,
static void vp56_mc(VP56Context *s, int b, int plane, uint8_t *src,
int stride, int x, int y)
{
- uint8_t *dst=s->framep[VP56_FRAME_CURRENT]->data[plane]+s->block_offset[b];
+ uint8_t *dst = s->frames[VP56_FRAME_CURRENT]->data[plane] + s->block_offset[b];
uint8_t *src_block;
int src_offset;
int overlap_offset = 0;
@@ -325,7 +324,7 @@ static void vp56_mc(VP56Context *s, int b, int plane, uint8_t *src,
if (s->avctx->skip_loop_filter >= AVDISCARD_ALL ||
(s->avctx->skip_loop_filter >= AVDISCARD_NONKEY
- && !s->framep[VP56_FRAME_CURRENT]->key_frame))
+ && !s->frames[VP56_FRAME_CURRENT]->key_frame))
deblock_filtering = 0;
dx = s->mv[b].x / s->vp56_coord_div[b];
@@ -388,7 +387,7 @@ static void vp56_decode_mb(VP56Context *s, int row, int col, int is_alpha)
VP56Frame ref_frame;
int b, ab, b_max, plane, off;
- if (s->framep[VP56_FRAME_CURRENT]->key_frame)
+ if (s->frames[VP56_FRAME_CURRENT]->key_frame)
mb_type = VP56_MB_INTRA;
else
mb_type = vp56_decode_mv(s, row, col);
@@ -398,8 +397,8 @@ static void vp56_decode_mb(VP56Context *s, int row, int col, int is_alpha)
vp56_add_predictors_dc(s, ref_frame);
- frame_current = s->framep[VP56_FRAME_CURRENT];
- frame_ref = s->framep[ref_frame];
+ frame_current = s->frames[VP56_FRAME_CURRENT];
+ frame_ref = s->frames[ref_frame];
if (mb_type != VP56_MB_INTRA && !frame_ref->data[0])
return;
@@ -456,7 +455,7 @@ static void vp56_decode_mb(VP56Context *s, int row, int col, int is_alpha)
static int vp56_size_changed(VP56Context *s)
{
AVCodecContext *avctx = s->avctx;
- int stride = s->framep[VP56_FRAME_CURRENT]->linesize[0];
+ int stride = s->frames[VP56_FRAME_CURRENT]->linesize[0];
int i;
s->plane_width[0] = s->plane_width[3] = avctx->coded_width;
@@ -465,7 +464,7 @@ static int vp56_size_changed(VP56Context *s)
s->plane_height[1] = s->plane_height[2] = avctx->coded_height/2;
for (i=0; i<4; i++)
- s->stride[i] = s->flip * s->framep[VP56_FRAME_CURRENT]->linesize[i];
+ s->stride[i] = s->flip * s->frames[VP56_FRAME_CURRENT]->linesize[i];
s->mb_width = (avctx->coded_width +15) / 16;
s->mb_height = (avctx->coded_height+15) / 16;
@@ -476,7 +475,6 @@ static int vp56_size_changed(VP56Context *s)
return -1;
}
- s->qscale_table = av_realloc(s->qscale_table, s->mb_width);
s->above_blocks = av_realloc(s->above_blocks,
(4*s->mb_width+6) * sizeof(*s->above_blocks));
s->macroblocks = av_realloc(s->macroblocks,
@@ -500,23 +498,11 @@ int ff_vp56_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
{
const uint8_t *buf = avpkt->data;
VP56Context *s = avctx->priv_data;
- AVFrame *p = 0;
+ AVFrame *const p = s->frames[VP56_FRAME_CURRENT];
int remaining_buf_size = avpkt->size;
int av_uninit(alpha_offset);
int i, res;
- /* select a current frame from the unused frames */
- for (i = 0; i < 4; ++i) {
- if (!s->frames[i].data[0]) {
- p = &s->frames[i];
- break;
- }
- }
- av_assert0(p != 0);
- s->framep[VP56_FRAME_CURRENT] = p;
- if (s->alpha_context)
- s->alpha_context->framep[VP56_FRAME_CURRENT] = p;
-
if (s->has_alpha) {
if (remaining_buf_size < 3)
return -1;
@@ -532,20 +518,25 @@ int ff_vp56_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
if (res == VP56_SIZE_CHANGE) {
for (i = 0; i < 4; i++) {
- if (s->frames[i].data[0])
- avctx->release_buffer(avctx, &s->frames[i]);
+ av_frame_unref(s->frames[i]);
+ if (s->alpha_context)
+ av_frame_unref(s->alpha_context->frames[i]);
}
}
- p->reference = 3;
- if (ff_get_buffer(avctx, p) < 0) {
+ if (ff_get_buffer(avctx, p, AV_GET_BUFFER_FLAG_REF) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return -1;
}
+ if (s->has_alpha) {
+ av_frame_unref(s->alpha_context->frames[VP56_FRAME_CURRENT]);
+ av_frame_ref(s->alpha_context->frames[VP56_FRAME_CURRENT], p);
+ }
+
if (res == VP56_SIZE_CHANGE) {
if (vp56_size_changed(s)) {
- avctx->release_buffer(avctx, p);
+ av_frame_unref(p);
return -1;
}
}
@@ -567,28 +558,15 @@ int ff_vp56_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
avctx->coded_width = bak_cw;
avctx->coded_height = bak_ch;
}
- avctx->release_buffer(avctx, p);
+ av_frame_unref(p);
return -1;
}
}
avctx->execute2(avctx, ff_vp56_decode_mbs, 0, 0, s->has_alpha + 1);
- /* release frames that aren't in use */
- for (i = 0; i < 4; ++i) {
- AVFrame *victim = &s->frames[i];
- if (!victim->data[0])
- continue;
- if (victim != s->framep[VP56_FRAME_PREVIOUS] &&
- victim != s->framep[VP56_FRAME_GOLDEN] &&
- (!s->has_alpha || victim != s->alpha_context->framep[VP56_FRAME_GOLDEN]))
- avctx->release_buffer(avctx, victim);
- }
-
- p->qstride = 0;
- p->qscale_table = s->qscale_table;
- p->qscale_type = FF_QSCALE_TYPE_VP56;
- *(AVFrame*)data = *p;
+ if ((res = av_frame_ref(data, p)) < 0)
+ return res;
*got_frame = 1;
return avpkt->size;
@@ -600,9 +578,10 @@ static int ff_vp56_decode_mbs(AVCodecContext *avctx, void *data,
VP56Context *s0 = avctx->priv_data;
int is_alpha = (jobnr == 1);
VP56Context *s = is_alpha ? s0->alpha_context : s0;
- AVFrame *const p = s->framep[VP56_FRAME_CURRENT];
+ AVFrame *const p = s->frames[VP56_FRAME_CURRENT];
int mb_row, mb_col, mb_row_flip, mb_offset = 0;
int block, y, uv, stride_y, stride_uv;
+ int res;
if (p->key_frame) {
p->pict_type = AV_PICTURE_TYPE_I;
@@ -683,21 +662,24 @@ static int ff_vp56_decode_mbs(AVCodecContext *avctx, void *data,
next:
if (p->key_frame || s->golden_frame) {
- s->framep[VP56_FRAME_GOLDEN] = p;
+ av_frame_unref(s->frames[VP56_FRAME_GOLDEN]);
+ if ((res = av_frame_ref(s->frames[VP56_FRAME_GOLDEN], p)) < 0)
+ return res;
}
- FFSWAP(AVFrame *, s->framep[VP56_FRAME_CURRENT],
- s->framep[VP56_FRAME_PREVIOUS]);
+ av_frame_unref(s->frames[VP56_FRAME_PREVIOUS]);
+ FFSWAP(AVFrame *, s->frames[VP56_FRAME_CURRENT],
+ s->frames[VP56_FRAME_PREVIOUS]);
return 0;
}
-av_cold void ff_vp56_init(AVCodecContext *avctx, int flip, int has_alpha)
+av_cold int ff_vp56_init(AVCodecContext *avctx, int flip, int has_alpha)
{
VP56Context *s = avctx->priv_data;
- ff_vp56_init_context(avctx, s, flip, has_alpha);
+ return ff_vp56_init_context(avctx, s, flip, has_alpha);
}
-av_cold void ff_vp56_init_context(AVCodecContext *avctx, VP56Context *s,
+av_cold int ff_vp56_init_context(AVCodecContext *avctx, VP56Context *s,
int flip, int has_alpha)
{
int i;
@@ -713,12 +695,13 @@ av_cold void ff_vp56_init_context(AVCodecContext *avctx, VP56Context *s,
ff_init_scantable_permutation(s->dsp.idct_permutation, s->vp3dsp.idct_perm);
ff_init_scantable(s->dsp.idct_permutation, &s->scantable,ff_zigzag_direct);
- for (i=0; i<4; i++) {
- s->framep[i] = &s->frames[i];
- avcodec_get_frame_defaults(&s->frames[i]);
+ for (i = 0; i < FF_ARRAY_ELEMS(s->frames); i++) {
+ s->frames[i] = av_frame_alloc();
+ if (!s->frames[i]) {
+ ff_vp56_free(avctx);
+ return AVERROR(ENOMEM);
+ }
}
- s->framep[VP56_FRAME_UNUSED] = s->framep[VP56_FRAME_GOLDEN];
- s->framep[VP56_FRAME_UNUSED2] = s->framep[VP56_FRAME_GOLDEN2];
s->edge_emu_buffer_alloc = NULL;
s->above_blocks = NULL;
@@ -742,6 +725,8 @@ av_cold void ff_vp56_init_context(AVCodecContext *avctx, VP56Context *s,
s->frbi = 0;
s->srbi = 2;
}
+
+ return 0;
}
av_cold int ff_vp56_free(AVCodecContext *avctx)
@@ -755,13 +740,12 @@ av_cold int ff_vp56_free_context(VP56Context *s)
AVCodecContext *avctx = s->avctx;
int i;
- av_freep(&s->qscale_table);
av_freep(&s->above_blocks);
av_freep(&s->macroblocks);
av_freep(&s->edge_emu_buffer_alloc);
- for (i = 0; i < 4; ++i) {
- if (s->frames[i].data[0])
- avctx->release_buffer(avctx, &s->frames[i]);
- }
+
+ for (i = 0; i < FF_ARRAY_ELEMS(s->frames); i++)
+ av_frame_free(&s->frames[i]);
+
return 0;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-21 03:26:37 +0000