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| author | Mashiat Sarker Shakkhar <mashiat.sarker@gmail.com> | 2012-08-03 20:53:36 +0600 |
|---|---|---|
| committer | Kostya Shishkov <kostya.shishkov@gmail.com> | 2012-08-03 17:21:54 +0200 |
| commit | 9cc74c9f6e8b645e67d45b2070db004caca09af7 (patch) | |
| tree | 785c2bc5a568be203f49d9d1d8e7d3af24890d1f | |
| parent | 8379ea5e9f6bf3d50663ffb655ba5dd6a11652b4 (diff) | |
| download | ffmpeg-9cc74c9f6e8b645e67d45b2070db004caca09af7.tar.gz | |
vc1dec: Remove separate scaling function for interlaced field MVs
The scaling process for obtaining direct MVs from co-located field MVs
is the same for interlaced field and progressive pictures.
Signed-off-by: Kostya Shishkov <kostya.shishkov@gmail.com>
| -rw-r--r-- | libavcodec/vc1dec.c | 30 |
1 files changed, 8 insertions, 22 deletions
diff --git a/libavcodec/vc1dec.c b/libavcodec/vc1dec.c index fcb25db0bf..cb15dee982 100644 --- a/libavcodec/vc1dec.c +++ b/libavcodec/vc1dec.c @@ -1977,20 +1977,6 @@ static av_always_inline int scale_mv(int value, int bfrac, int inv, int qs) #endif } -static av_always_inline int scale_mv_intfi(int value, int bfrac, int inv, - int qs, int qs_last) -{ - int n = bfrac; - - if (inv) - n -= 256; - n <<= !qs_last; - if (!qs) - return (value * n + 255) >> 9; - else - return (value * n + 128) >> 8; -} - /** Reconstruct motion vector for B-frame and do motion compensation */ static inline void vc1_b_mc(VC1Context *v, int dmv_x[2], int dmv_y[2], @@ -2244,14 +2230,14 @@ static inline void vc1_pred_b_mv_intfi(VC1Context *v, int n, int *dmv_x, int *dm if (v->bmvtype == BMV_TYPE_DIRECT) { int total_opp, k, f; if (s->next_picture.f.mb_type[mb_pos + v->mb_off] != MB_TYPE_INTRA) { - s->mv[0][0][0] = scale_mv_intfi(s->next_picture.f.motion_val[1][s->block_index[0] + v->blocks_off][0], - v->bfraction, 0, s->quarter_sample, v->qs_last); - s->mv[0][0][1] = scale_mv_intfi(s->next_picture.f.motion_val[1][s->block_index[0] + v->blocks_off][1], - v->bfraction, 0, s->quarter_sample, v->qs_last); - s->mv[1][0][0] = scale_mv_intfi(s->next_picture.f.motion_val[1][s->block_index[0] + v->blocks_off][0], - v->bfraction, 1, s->quarter_sample, v->qs_last); - s->mv[1][0][1] = scale_mv_intfi(s->next_picture.f.motion_val[1][s->block_index[0] + v->blocks_off][1], - v->bfraction, 1, s->quarter_sample, v->qs_last); + s->mv[0][0][0] = scale_mv(s->next_picture.f.motion_val[1][s->block_index[0] + v->blocks_off][0], + v->bfraction, 0, s->quarter_sample); + s->mv[0][0][1] = scale_mv(s->next_picture.f.motion_val[1][s->block_index[0] + v->blocks_off][1], + v->bfraction, 0, s->quarter_sample); + s->mv[1][0][0] = scale_mv(s->next_picture.f.motion_val[1][s->block_index[0] + v->blocks_off][0], + v->bfraction, 1, s->quarter_sample); + s->mv[1][0][1] = scale_mv(s->next_picture.f.motion_val[1][s->block_index[0] + v->blocks_off][1], + v->bfraction, 1, s->quarter_sample); total_opp = v->mv_f_next[0][s->block_index[0] + v->blocks_off] + v->mv_f_next[0][s->block_index[1] + v->blocks_off] |