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Diffstat (limited to 'libavcodec/h264_mb_template.c')
-rw-r--r--libavcodec/h264_mb_template.c380
1 files changed, 380 insertions, 0 deletions
diff --git a/libavcodec/h264_mb_template.c b/libavcodec/h264_mb_template.c
new file mode 100644
index 0000000000..b7856cb3d8
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+++ b/libavcodec/h264_mb_template.c
@@ -0,0 +1,380 @@
+/*
+ * 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
+ */
+
+#undef FUNC
+#undef PIXEL_SHIFT
+
+#if SIMPLE
+# define FUNC(n) AV_JOIN(n ## _simple_, BITS)
+# define PIXEL_SHIFT (BITS >> 4)
+#else
+# define FUNC(n) n ## _complex
+# define PIXEL_SHIFT h->pixel_shift
+#endif
+
+#undef CHROMA_IDC
+#define CHROMA_IDC 1
+#include "h264_mc_template.c"
+
+#undef CHROMA_IDC
+#define CHROMA_IDC 2
+#include "h264_mc_template.c"
+
+static av_noinline void FUNC(hl_decode_mb)(H264Context *h)
+{
+ MpegEncContext *const s = &h->s;
+ const int mb_x = s->mb_x;
+ const int mb_y = s->mb_y;
+ const int mb_xy = h->mb_xy;
+ const int mb_type = s->current_picture.f.mb_type[mb_xy];
+ uint8_t *dest_y, *dest_cb, *dest_cr;
+ int linesize, uvlinesize /*dct_offset*/;
+ int i, j;
+ int *block_offset = &h->block_offset[0];
+ const int transform_bypass = !SIMPLE && (s->qscale == 0 && h->sps.transform_bypass);
+ /* is_h264 should always be true if SVQ3 is disabled. */
+ const int is_h264 = !CONFIG_SVQ3_DECODER || SIMPLE || s->codec_id == CODEC_ID_H264;
+ void (*idct_add)(uint8_t *dst, DCTELEM *block, int stride);
+ const int block_h = 16 >> s->chroma_y_shift;
+ const int chroma422 = CHROMA422;
+
+ dest_y = s->current_picture.f.data[0] + ((mb_x << PIXEL_SHIFT) + mb_y * s->linesize) * 16;
+ dest_cb = s->current_picture.f.data[1] + (mb_x << PIXEL_SHIFT) * 8 + mb_y * s->uvlinesize * block_h;
+ dest_cr = s->current_picture.f.data[2] + (mb_x << PIXEL_SHIFT) * 8 + mb_y * s->uvlinesize * block_h;
+
+ s->dsp.prefetch(dest_y + (s->mb_x & 3) * 4 * s->linesize + (64 << PIXEL_SHIFT), s->linesize, 4);
+ s->dsp.prefetch(dest_cb + (s->mb_x & 7) * s->uvlinesize + (64 << PIXEL_SHIFT), dest_cr - dest_cb, 2);
+
+ h->list_counts[mb_xy] = h->list_count;
+
+ if (!SIMPLE && MB_FIELD) {
+ linesize = h->mb_linesize = s->linesize * 2;
+ uvlinesize = h->mb_uvlinesize = s->uvlinesize * 2;
+ block_offset = &h->block_offset[48];
+ if (mb_y & 1) { // FIXME move out of this function?
+ dest_y -= s->linesize * 15;
+ dest_cb -= s->uvlinesize * (block_h - 1);
+ dest_cr -= s->uvlinesize * (block_h - 1);
+ }
+ if (FRAME_MBAFF) {
+ int list;
+ for (list = 0; list < h->list_count; list++) {
+ if (!USES_LIST(mb_type, list))
+ continue;
+ if (IS_16X16(mb_type)) {
+ int8_t *ref = &h->ref_cache[list][scan8[0]];
+ fill_rectangle(ref, 4, 4, 8, (16 + *ref) ^ (s->mb_y & 1), 1);
+ } else {
+ for (i = 0; i < 16; i += 4) {
+ int ref = h->ref_cache[list][scan8[i]];
+ if (ref >= 0)
+ fill_rectangle(&h->ref_cache[list][scan8[i]], 2, 2,
+ 8, (16 + ref) ^ (s->mb_y & 1), 1);
+ }
+ }
+ }
+ }
+ } else {
+ linesize = h->mb_linesize = s->linesize;
+ uvlinesize = h->mb_uvlinesize = s->uvlinesize;
+ // dct_offset = s->linesize * 16;
+ }
+
+ if (!SIMPLE && IS_INTRA_PCM(mb_type)) {
+ if (PIXEL_SHIFT) {
+ const int bit_depth = h->sps.bit_depth_luma;
+ int j;
+ GetBitContext gb;
+ init_get_bits(&gb, (uint8_t *)h->mb,
+ ff_h264_mb_sizes[h->sps.chroma_format_idc] * bit_depth);
+
+ for (i = 0; i < 16; i++) {
+ uint16_t *tmp_y = (uint16_t *)(dest_y + i * linesize);
+ for (j = 0; j < 16; j++)
+ tmp_y[j] = get_bits(&gb, bit_depth);
+ }
+ if (SIMPLE || !CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY)) {
+ if (!h->sps.chroma_format_idc) {
+ for (i = 0; i < block_h; i++) {
+ uint16_t *tmp_cb = (uint16_t *)(dest_cb + i * uvlinesize);
+ for (j = 0; j < 8; j++)
+ tmp_cb[j] = 1 << (bit_depth - 1);
+ }
+ for (i = 0; i < block_h; i++) {
+ uint16_t *tmp_cr = (uint16_t *)(dest_cr + i * uvlinesize);
+ for (j = 0; j < 8; j++)
+ tmp_cr[j] = 1 << (bit_depth - 1);
+ }
+ } else {
+ for (i = 0; i < block_h; i++) {
+ uint16_t *tmp_cb = (uint16_t *)(dest_cb + i * uvlinesize);
+ for (j = 0; j < 8; j++)
+ tmp_cb[j] = get_bits(&gb, bit_depth);
+ }
+ for (i = 0; i < block_h; i++) {
+ uint16_t *tmp_cr = (uint16_t *)(dest_cr + i * uvlinesize);
+ for (j = 0; j < 8; j++)
+ tmp_cr[j] = get_bits(&gb, bit_depth);
+ }
+ }
+ }
+ } else {
+ for (i = 0; i < 16; i++)
+ memcpy(dest_y + i * linesize, (uint8_t *)h->mb + i * 16, 16);
+ if (SIMPLE || !CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY)) {
+ if (!h->sps.chroma_format_idc) {
+ for (i = 0; i < block_h; i++) {
+ memset(dest_cb + i * uvlinesize, 128, 8);
+ memset(dest_cr + i * uvlinesize, 128, 8);
+ }
+ } else {
+ uint8_t *src_cb = (uint8_t *)h->mb + 256;
+ uint8_t *src_cr = (uint8_t *)h->mb + 256 + block_h * 8;
+ for (i = 0; i < block_h; i++) {
+ memcpy(dest_cb + i * uvlinesize, src_cb + i * 8, 8);
+ memcpy(dest_cr + i * uvlinesize, src_cr + i * 8, 8);
+ }
+ }
+ }
+ }
+ } else {
+ if (IS_INTRA(mb_type)) {
+ if (h->deblocking_filter)
+ xchg_mb_border(h, dest_y, dest_cb, dest_cr, linesize,
+ uvlinesize, 1, 0, SIMPLE, PIXEL_SHIFT);
+
+ if (SIMPLE || !CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY)) {
+ h->hpc.pred8x8[h->chroma_pred_mode](dest_cb, uvlinesize);
+ h->hpc.pred8x8[h->chroma_pred_mode](dest_cr, uvlinesize);
+ }
+
+ hl_decode_mb_predict_luma(h, mb_type, is_h264, SIMPLE,
+ transform_bypass, PIXEL_SHIFT,
+ block_offset, linesize, dest_y, 0);
+
+ if (h->deblocking_filter)
+ xchg_mb_border(h, dest_y, dest_cb, dest_cr, linesize,
+ uvlinesize, 0, 0, SIMPLE, PIXEL_SHIFT);
+ } else if (is_h264) {
+ if (chroma422) {
+ FUNC(hl_motion_422)(h, dest_y, dest_cb, dest_cr,
+ s->me.qpel_put, s->dsp.put_h264_chroma_pixels_tab,
+ s->me.qpel_avg, s->dsp.avg_h264_chroma_pixels_tab,
+ h->h264dsp.weight_h264_pixels_tab,
+ h->h264dsp.biweight_h264_pixels_tab);
+ } else {
+ FUNC(hl_motion_420)(h, dest_y, dest_cb, dest_cr,
+ s->me.qpel_put, s->dsp.put_h264_chroma_pixels_tab,
+ s->me.qpel_avg, s->dsp.avg_h264_chroma_pixels_tab,
+ h->h264dsp.weight_h264_pixels_tab,
+ h->h264dsp.biweight_h264_pixels_tab);
+ }
+ }
+
+ hl_decode_mb_idct_luma(h, mb_type, is_h264, SIMPLE, transform_bypass,
+ PIXEL_SHIFT, block_offset, linesize, dest_y, 0);
+
+ if ((SIMPLE || !CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY)) &&
+ (h->cbp & 0x30)) {
+ uint8_t *dest[2] = { dest_cb, dest_cr };
+ if (transform_bypass) {
+ if (IS_INTRA(mb_type) && h->sps.profile_idc == 244 &&
+ (h->chroma_pred_mode == VERT_PRED8x8 ||
+ h->chroma_pred_mode == HOR_PRED8x8)) {
+ h->hpc.pred8x8_add[h->chroma_pred_mode](dest[0],
+ block_offset + 16,
+ h->mb + (16 * 16 * 1 << PIXEL_SHIFT),
+ uvlinesize);
+ h->hpc.pred8x8_add[h->chroma_pred_mode](dest[1],
+ block_offset + 32,
+ h->mb + (16 * 16 * 2 << PIXEL_SHIFT),
+ uvlinesize);
+ } else {
+ idct_add = s->dsp.add_pixels4;
+ for (j = 1; j < 3; j++) {
+ for (i = j * 16; i < j * 16 + 4; i++)
+ if (h->non_zero_count_cache[scan8[i]] ||
+ dctcoef_get(h->mb, PIXEL_SHIFT, i * 16))
+ idct_add(dest[j - 1] + block_offset[i],
+ h->mb + (i * 16 << PIXEL_SHIFT),
+ uvlinesize);
+ if (chroma422) {
+ for (i = j * 16 + 4; i < j * 16 + 8; i++)
+ if (h->non_zero_count_cache[scan8[i + 4]] ||
+ dctcoef_get(h->mb, PIXEL_SHIFT, i * 16))
+ idct_add(dest[j - 1] + block_offset[i + 4],
+ h->mb + (i * 16 << PIXEL_SHIFT),
+ uvlinesize);
+ }
+ }
+ }
+ } else {
+ if (is_h264) {
+ int qp[2];
+ if (chroma422) {
+ qp[0] = h->chroma_qp[0] + 3;
+ qp[1] = h->chroma_qp[1] + 3;
+ } else {
+ qp[0] = h->chroma_qp[0];
+ qp[1] = h->chroma_qp[1];
+ }
+ if (h->non_zero_count_cache[scan8[CHROMA_DC_BLOCK_INDEX + 0]])
+ h->h264dsp.h264_chroma_dc_dequant_idct(h->mb + (16 * 16 * 1 << PIXEL_SHIFT),
+ h->dequant4_coeff[IS_INTRA(mb_type) ? 1 : 4][qp[0]][0]);
+ if (h->non_zero_count_cache[scan8[CHROMA_DC_BLOCK_INDEX + 1]])
+ h->h264dsp.h264_chroma_dc_dequant_idct(h->mb + (16 * 16 * 2 << PIXEL_SHIFT),
+ h->dequant4_coeff[IS_INTRA(mb_type) ? 2 : 5][qp[1]][0]);
+ h->h264dsp.h264_idct_add8(dest, block_offset,
+ h->mb, uvlinesize,
+ h->non_zero_count_cache);
+ } else if (CONFIG_SVQ3_DECODER) {
+ h->h264dsp.h264_chroma_dc_dequant_idct(h->mb + 16 * 16 * 1,
+ h->dequant4_coeff[IS_INTRA(mb_type) ? 1 : 4][h->chroma_qp[0]][0]);
+ h->h264dsp.h264_chroma_dc_dequant_idct(h->mb + 16 * 16 * 2,
+ h->dequant4_coeff[IS_INTRA(mb_type) ? 2 : 5][h->chroma_qp[1]][0]);
+ for (j = 1; j < 3; j++) {
+ for (i = j * 16; i < j * 16 + 4; i++)
+ if (h->non_zero_count_cache[scan8[i]] || h->mb[i * 16]) {
+ uint8_t *const ptr = dest[j - 1] + block_offset[i];
+ ff_svq3_add_idct_c(ptr, h->mb + i * 16,
+ uvlinesize,
+ ff_h264_chroma_qp[0][s->qscale + 12] - 12, 2);
+ }
+ }
+ }
+ }
+ }
+ }
+ if (h->cbp || IS_INTRA(mb_type)) {
+ s->dsp.clear_blocks(h->mb);
+ s->dsp.clear_blocks(h->mb + (24 * 16 << PIXEL_SHIFT));
+ }
+}
+
+#if !SIMPLE || BITS == 8
+
+#undef CHROMA_IDC
+#define CHROMA_IDC 3
+#include "h264_mc_template.c"
+
+static av_noinline void FUNC(hl_decode_mb_444)(H264Context *h)
+{
+ MpegEncContext *const s = &h->s;
+ const int mb_x = s->mb_x;
+ const int mb_y = s->mb_y;
+ const int mb_xy = h->mb_xy;
+ const int mb_type = s->current_picture.f.mb_type[mb_xy];
+ uint8_t *dest[3];
+ int linesize;
+ int i, j, p;
+ int *block_offset = &h->block_offset[0];
+ const int transform_bypass = !SIMPLE && (s->qscale == 0 && h->sps.transform_bypass);
+ const int plane_count = (SIMPLE || !CONFIG_GRAY || !(s->flags & CODEC_FLAG_GRAY)) ? 3 : 1;
+
+ for (p = 0; p < plane_count; p++) {
+ dest[p] = s->current_picture.f.data[p] +
+ ((mb_x << PIXEL_SHIFT) + mb_y * s->linesize) * 16;
+ s->dsp.prefetch(dest[p] + (s->mb_x & 3) * 4 * s->linesize + (64 << PIXEL_SHIFT),
+ s->linesize, 4);
+ }
+
+ h->list_counts[mb_xy] = h->list_count;
+
+ if (!SIMPLE && MB_FIELD) {
+ linesize = h->mb_linesize = h->mb_uvlinesize = s->linesize * 2;
+ block_offset = &h->block_offset[48];
+ if (mb_y & 1) // FIXME move out of this function?
+ for (p = 0; p < 3; p++)
+ dest[p] -= s->linesize * 15;
+ if (FRAME_MBAFF) {
+ int list;
+ for (list = 0; list < h->list_count; list++) {
+ if (!USES_LIST(mb_type, list))
+ continue;
+ if (IS_16X16(mb_type)) {
+ int8_t *ref = &h->ref_cache[list][scan8[0]];
+ fill_rectangle(ref, 4, 4, 8, (16 + *ref) ^ (s->mb_y & 1), 1);
+ } else {
+ for (i = 0; i < 16; i += 4) {
+ int ref = h->ref_cache[list][scan8[i]];
+ if (ref >= 0)
+ fill_rectangle(&h->ref_cache[list][scan8[i]], 2, 2,
+ 8, (16 + ref) ^ (s->mb_y & 1), 1);
+ }
+ }
+ }
+ }
+ } else {
+ linesize = h->mb_linesize = h->mb_uvlinesize = s->linesize;
+ }
+
+ if (!SIMPLE && IS_INTRA_PCM(mb_type)) {
+ if (PIXEL_SHIFT) {
+ const int bit_depth = h->sps.bit_depth_luma;
+ GetBitContext gb;
+ init_get_bits(&gb, (uint8_t *)h->mb, 768 * bit_depth);
+
+ for (p = 0; p < plane_count; p++)
+ for (i = 0; i < 16; i++) {
+ uint16_t *tmp = (uint16_t *)(dest[p] + i * linesize);
+ for (j = 0; j < 16; j++)
+ tmp[j] = get_bits(&gb, bit_depth);
+ }
+ } else {
+ for (p = 0; p < plane_count; p++)
+ for (i = 0; i < 16; i++)
+ memcpy(dest[p] + i * linesize,
+ (uint8_t *)h->mb + p * 256 + i * 16, 16);
+ }
+ } else {
+ if (IS_INTRA(mb_type)) {
+ if (h->deblocking_filter)
+ xchg_mb_border(h, dest[0], dest[1], dest[2], linesize,
+ linesize, 1, 1, SIMPLE, PIXEL_SHIFT);
+
+ for (p = 0; p < plane_count; p++)
+ hl_decode_mb_predict_luma(h, mb_type, 1, SIMPLE,
+ transform_bypass, PIXEL_SHIFT,
+ block_offset, linesize, dest[p], p);
+
+ if (h->deblocking_filter)
+ xchg_mb_border(h, dest[0], dest[1], dest[2], linesize,
+ linesize, 0, 1, SIMPLE, PIXEL_SHIFT);
+ } else {
+ FUNC(hl_motion_444)(h, dest[0], dest[1], dest[2],
+ s->me.qpel_put, s->dsp.put_h264_chroma_pixels_tab,
+ s->me.qpel_avg, s->dsp.avg_h264_chroma_pixels_tab,
+ h->h264dsp.weight_h264_pixels_tab,
+ h->h264dsp.biweight_h264_pixels_tab);
+ }
+
+ for (p = 0; p < plane_count; p++)
+ hl_decode_mb_idct_luma(h, mb_type, 1, SIMPLE, transform_bypass,
+ PIXEL_SHIFT, block_offset, linesize,
+ dest[p], p);
+ }
+ if (h->cbp || IS_INTRA(mb_type)) {
+ s->dsp.clear_blocks(h->mb);
+ s->dsp.clear_blocks(h->mb + (24 * 16 << PIXEL_SHIFT));
+ }
+}
+
+#endif
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