[libav-commits] vc1dec: Set chroma reference field from REFFIELD for 1REF field pictures

Mashiat Sarker Shakkhar git at libav.org
Wed Oct 10 21:04:01 CEST 2012


Module: libav
Branch: master
Commit: 88058d9a994f42e4e9ed4e67baf696bbfe53128c

Author:    Mashiat Sarker Shakkhar <mashiat.sarker at gmail.com>
Committer: Derek Buitenhuis <derek.buitenhuis at gmail.com>
Date:      Tue Oct  9 19:38:15 2012 +0000

vc1dec: Set chroma reference field from REFFIELD for 1REF field pictures

Interlaced field pictures can have one or two reference pictures, signaled
by NUMREF syntax element. For single reference pictures, reference picture
is determined by REFFIELD syntax element.

Signed-off-by: Derek Buitenhuis <derek.buitenhuis at gmail.com>

---

 libavcodec/vc1dec.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/libavcodec/vc1dec.c b/libavcodec/vc1dec.c
index b8237d7..4127691 100644
--- a/libavcodec/vc1dec.c
+++ b/libavcodec/vc1dec.c
@@ -794,6 +794,7 @@ static void vc1_mc_4mv_chroma(VC1Context *v, int dir)
     /* calculate chroma MV vector from four luma MVs */
     if (!v->field_mode || (v->field_mode && !v->numref)) {
         valid_count = get_chroma_mv(mvx, mvy, intra, 0, &tx, &ty);
+        chroma_ref_type = v->reffield;
         if (!valid_count) {
             s->current_picture.f.motion_val[1][s->block_index[0] + v->blocks_off][0] = 0;
             s->current_picture.f.motion_val[1][s->block_index[0] + v->blocks_off][1] = 0;



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