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authorMichael Niedermayer <michaelni@gmx.at>2003-11-13 23:45:25 +0000
committerMichael Niedermayer <michaelni@gmx.at>2003-11-13 23:45:25 +0000
commitad0d17f1f812ac551c8831162eb0745f054a6f6c (patch)
tree71b3481e43611ed811361514bc1485af1f11ff8b /libavcodec/mpegvideo.c
parentdd3e415e06cbd5b6c9e816708f067ede1cfbf943 (diff)
qprd with b frames fix
Originally committed as revision 2518 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/mpegvideo.c')
-rw-r--r--libavcodec/mpegvideo.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c
index e11b411876..f02b094a62 100644
--- a/libavcodec/mpegvideo.c
+++ b/libavcodec/mpegvideo.c
@@ -3840,6 +3840,7 @@ static void encode_picture(MpegEncContext *s, int picture_number)
const int last_qp= backup_s.qscale;
int dquant, dir, qp, dc[6];
DCTELEM ac[6][16];
+ const int mvdir= (best_s.mv_dir&MV_DIR_BACKWARD) ? 1 : 0;
assert(backup_s.dquant == 0);
@@ -3853,7 +3854,7 @@ static void encode_picture(MpegEncContext *s, int picture_number)
s->mv[1][0][1] = best_s.mv[1][0][1];
dir= s->pict_type == B_TYPE ? 2 : 1;
- if(last_qp + dir >= s->avctx->qmax) dir= -dir;
+ if(last_qp + dir > s->avctx->qmax) dir= -dir;
for(dquant= dir; dquant<=2 && dquant>=-2; dquant += dir){
qp= last_qp + dquant;
if(qp < s->avctx->qmin || qp > s->avctx->qmax)
@@ -3867,7 +3868,7 @@ static void encode_picture(MpegEncContext *s, int picture_number)
}
encode_mb_hq(s, &backup_s, &best_s, MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb,
- &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
+ &dmin, &next_block, s->mv[mvdir][0][0], s->mv[mvdir][0][1]);
if(best_s.qscale != qp){
if(s->mb_intra){
for(i=0; i<6; i++){