diff options
| -rw-r--r-- | libavcodec/vc1.h | 1 | ||||
| -rw-r--r-- | libavcodec/vc1dec.c | 21 |
2 files changed, 4 insertions, 18 deletions
diff --git a/libavcodec/vc1.h b/libavcodec/vc1.h index 88980d49a6..9d7743a9fd 100644 --- a/libavcodec/vc1.h +++ b/libavcodec/vc1.h @@ -354,7 +354,6 @@ typedef struct VC1Context{ int8_t zzi_8x8[64]; uint8_t *blk_mv_type_base, *blk_mv_type; ///< 0: frame MV, 1: field MV (interlaced frame) uint8_t *mv_f_base, *mv_f[2]; ///< 0: MV obtained from same field, 1: opposite field - uint8_t *mv_f_last_base, *mv_f_last[2]; uint8_t *mv_f_next_base, *mv_f_next[2]; int field_mode; ///< 1 for interlaced field pictures int fptype; diff --git a/libavcodec/vc1dec.c b/libavcodec/vc1dec.c index a1c9890ead..12e6a99e5d 100644 --- a/libavcodec/vc1dec.c +++ b/libavcodec/vc1dec.c @@ -5419,9 +5419,6 @@ av_cold int ff_vc1_decode_init_alloc_tables(VC1Context *v) v->mv_f_base = av_mallocz(2 * (s->b8_stride * (s->mb_height * 2 + 1) + s->mb_stride * (s->mb_height + 1) * 2)); v->mv_f[0] = v->mv_f_base + s->b8_stride + 1; v->mv_f[1] = v->mv_f[0] + (s->b8_stride * (s->mb_height * 2 + 1) + s->mb_stride * (s->mb_height + 1) * 2); - v->mv_f_last_base = av_mallocz(2 * (s->b8_stride * (s->mb_height * 2 + 1) + s->mb_stride * (s->mb_height + 1) * 2)); - v->mv_f_last[0] = v->mv_f_last_base + s->b8_stride + 1; - v->mv_f_last[1] = v->mv_f_last[0] + (s->b8_stride * (s->mb_height * 2 + 1) + s->mb_stride * (s->mb_height + 1) * 2); v->mv_f_next_base = av_mallocz(2 * (s->b8_stride * (s->mb_height * 2 + 1) + s->mb_stride * (s->mb_height + 1) * 2)); v->mv_f_next[0] = v->mv_f_next_base + s->b8_stride + 1; v->mv_f_next[1] = v->mv_f_next[0] + (s->b8_stride * (s->mb_height * 2 + 1) + s->mb_stride * (s->mb_height + 1) * 2); @@ -5619,7 +5616,6 @@ av_cold int ff_vc1_decode_end(AVCodecContext *avctx) av_freep(&v->mb_type_base); av_freep(&v->blk_mv_type_base); av_freep(&v->mv_f_base); - av_freep(&v->mv_f_last_base); av_freep(&v->mv_f_next_base); av_freep(&v->block); av_freep(&v->cbp_base); @@ -5889,20 +5885,11 @@ static int vc1_decode_frame(AVCodecContext *avctx, void *data, v->bits = buf_size * 8; v->end_mb_x = s->mb_width; if (v->field_mode) { - uint8_t *tmp[2]; s->current_picture.f.linesize[0] <<= 1; s->current_picture.f.linesize[1] <<= 1; s->current_picture.f.linesize[2] <<= 1; s->linesize <<= 1; s->uvlinesize <<= 1; - tmp[0] = v->mv_f_last[0]; - tmp[1] = v->mv_f_last[1]; - v->mv_f_last[0] = v->mv_f_next[0]; - v->mv_f_last[1] = v->mv_f_next[1]; - v->mv_f_next[0] = v->mv_f[0]; - v->mv_f_next[1] = v->mv_f[1]; - v->mv_f[0] = tmp[0]; - v->mv_f[1] = tmp[1]; } mb_height = s->mb_height >> v->field_mode; for (i = 0; i <= n_slices; i++) { @@ -5947,15 +5934,15 @@ static int vc1_decode_frame(AVCodecContext *avctx, void *data, } if (v->field_mode) { v->second_field = 0; - if (s->pict_type == AV_PICTURE_TYPE_B) { - memcpy(v->mv_f_base, v->mv_f_next_base, - 2 * (s->b8_stride * (s->mb_height * 2 + 1) + s->mb_stride * (s->mb_height + 1) * 2)); - } s->current_picture.f.linesize[0] >>= 1; s->current_picture.f.linesize[1] >>= 1; s->current_picture.f.linesize[2] >>= 1; s->linesize >>= 1; s->uvlinesize >>= 1; + if (v->s.pict_type != AV_PICTURE_TYPE_BI && v->s.pict_type != AV_PICTURE_TYPE_B) { + FFSWAP(uint8_t *, v->mv_f_next[0], v->mv_f[0]); + FFSWAP(uint8_t *, v->mv_f_next[1], v->mv_f[1]); + } } av_dlog(s->avctx, "Consumed %i/%i bits\n", get_bits_count(&s->gb), s->gb.size_in_bits); |