v->n_allocated_blks = s->mb_width + 2;
v->block = av_malloc(sizeof(*v->block) * v->n_allocated_blks);
- v->cbp_base = av_malloc(sizeof(v->cbp_base[0]) * 2 * s->mb_stride);
+ v->cbp_base = av_malloc(sizeof(v->cbp_base[0]) * 3 * s->mb_stride);
if (!v->block || !v->cbp_base)
goto error;
- v->cbp = v->cbp_base + s->mb_stride;
- v->ttblk_base = av_malloc(sizeof(v->ttblk_base[0]) * 2 * s->mb_stride);
+ v->cbp = v->cbp_base + 2 * s->mb_stride;
+ v->ttblk_base = av_malloc(sizeof(v->ttblk_base[0]) * 3 * s->mb_stride);
if (!v->ttblk_base)
goto error;
- v->ttblk = v->ttblk_base + s->mb_stride;
- v->is_intra_base = av_mallocz(sizeof(v->is_intra_base[0]) * 2 * s->mb_stride);
+ v->ttblk = v->ttblk_base + 2 * s->mb_stride;
+ v->is_intra_base = av_mallocz(sizeof(v->is_intra_base[0]) * 3 * s->mb_stride);
if (!v->is_intra_base)
goto error;
- v->is_intra = v->is_intra_base + s->mb_stride;
- v->luma_mv_base = av_mallocz(sizeof(v->luma_mv_base[0]) * 2 * s->mb_stride);
+ v->is_intra = v->is_intra_base + 2 * s->mb_stride;
+ v->luma_mv_base = av_mallocz(sizeof(v->luma_mv_base[0]) * 3 * s->mb_stride);
if (!v->luma_mv_base)
goto error;
- v->luma_mv = v->luma_mv_base + s->mb_stride;
+ v->luma_mv = v->luma_mv_base + 2 * s->mb_stride;
/* allocate block type info in that way so it could be used with s->block_index[] */
v->mb_type_base = av_malloc(s->b8_stride * (mb_height * 2 + 1) + s->mb_stride * (mb_height + 1) * 2);
slices[n_slices].buf);
init_get_bits(&slices[n_slices].gb, slices[n_slices].buf,
buf_size3 << 3);
- /* assuming that the field marker is at the exact middle,
- hope it's correct */
- slices[n_slices].mby_start = s->mb_height + 1 >> 1;
+ slices[n_slices].mby_start = avctx->coded_height + 31 >> 5;
slices[n_slices].rawbuf = start;
slices[n_slices].raw_size = size + 4;
n_slices1 = n_slices - 1; // index of the last slice of the first field
s->picture_structure = PICT_BOTTOM_FIELD - v->tff;
if ((ret = avctx->hwaccel->start_frame(avctx, buf_start, buf_start_second_field - buf_start)) < 0)
goto err;
- if ((ret = avctx->hwaccel->decode_slice(avctx, buf_start, buf_start_second_field - buf_start)) < 0)
- goto err;
+
+ if (n_slices1 == -1) {
+ // no slices, decode the field as-is
+ if ((ret = avctx->hwaccel->decode_slice(avctx, buf_start, buf_start_second_field - buf_start)) < 0)
+ goto err;
+ } else {
+ if ((ret = avctx->hwaccel->decode_slice(avctx, buf_start, slices[0].rawbuf - buf_start)) < 0)
+ goto err;
+
+ for (i = 0 ; i < n_slices1 + 1; i++) {
+ s->gb = slices[i].gb;
+ s->mb_y = slices[i].mby_start;
+
+ v->pic_header_flag = get_bits1(&s->gb);
+ if (v->pic_header_flag) {
+ if (ff_vc1_parse_frame_header_adv(v, &s->gb) < 0) {
+ av_log(v->s.avctx, AV_LOG_ERROR, "Slice header damaged\n");
+ ret = AVERROR_INVALIDDATA;
+ if (avctx->err_recognition & AV_EF_EXPLODE)
+ goto err;
+ continue;
+ }
+ }
+
+ if ((ret = avctx->hwaccel->decode_slice(avctx, slices[i].rawbuf, slices[i].raw_size)) < 0)
+ goto err;
+ }
+ }
+
if ((ret = avctx->hwaccel->end_frame(avctx)) < 0)
goto err;
// decode second field
s->gb = slices[n_slices1 + 1].gb;
+ s->mb_y = slices[n_slices1 + 1].mby_start;
s->picture_structure = PICT_TOP_FIELD + v->tff;
v->second_field = 1;
v->pic_header_flag = 0;
if ((ret = avctx->hwaccel->start_frame(avctx, buf_start_second_field, (buf + buf_size) - buf_start_second_field)) < 0)
goto err;
- if ((ret = avctx->hwaccel->decode_slice(avctx, buf_start_second_field, (buf + buf_size) - buf_start_second_field)) < 0)
- goto err;
+
+ if (n_slices - n_slices1 == 2) {
+ // no slices, decode the field as-is
+ if ((ret = avctx->hwaccel->decode_slice(avctx, buf_start_second_field, (buf + buf_size) - buf_start_second_field)) < 0)
+ goto err;
+ } else {
+ if ((ret = avctx->hwaccel->decode_slice(avctx, buf_start_second_field, slices[n_slices1 + 2].rawbuf - buf_start_second_field)) < 0)
+ goto err;
+
+ for (i = n_slices1 + 2; i < n_slices; i++) {
+ s->gb = slices[i].gb;
+ s->mb_y = slices[i].mby_start;
+
+ v->pic_header_flag = get_bits1(&s->gb);
+ if (v->pic_header_flag) {
+ if (ff_vc1_parse_frame_header_adv(v, &s->gb) < 0) {
+ av_log(v->s.avctx, AV_LOG_ERROR, "Slice header damaged\n");
+ ret = AVERROR_INVALIDDATA;
+ if (avctx->err_recognition & AV_EF_EXPLODE)
+ goto err;
+ continue;
+ }
+ }
+
+ if ((ret = avctx->hwaccel->decode_slice(avctx, slices[i].rawbuf, slices[i].raw_size)) < 0)
+ goto err;
+ }
+ }
+
if ((ret = avctx->hwaccel->end_frame(avctx)) < 0)
goto err;
} else {
av_log(v->s.avctx, AV_LOG_ERROR, "first field slice count too large\n");
continue;
}
- s->end_mb_y = (i <= n_slices1 + 1) ? mb_height : FFMIN(mb_height, slices[i].mby_start % mb_height);
+ s->end_mb_y = (i == n_slices1 + 1) ? mb_height : FFMIN(mb_height, slices[i].mby_start % mb_height);
}
if (s->end_mb_y <= s->start_mb_y) {
av_log(v->s.avctx, AV_LOG_ERROR, "end mb y %d %d invalid\n", s->end_mb_y, s->start_mb_y);
continue;
}
- if (!v->p_frame_skipped && s->pict_type != AV_PICTURE_TYPE_I && !v->cbpcy_vlc) {
+ if (((s->pict_type == AV_PICTURE_TYPE_P && !v->p_frame_skipped) ||
+ (s->pict_type == AV_PICTURE_TYPE_B && !v->bi_type)) &&
+ !v->cbpcy_vlc) {
av_log(v->s.avctx, AV_LOG_ERROR, "missing cbpcy_vlc\n");
continue;
}
projects / ffmpeg / blobdiff