From cb284d4b77ba4caf727353a216ee7dda79039175 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Wed, 20 Dec 2006 23:43:13 +0000 Subject: [PATCH] try direct mode MB after QPRD, slight PSNR/bitrate gain if b frames + QPRD Originally committed as revision 7336 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavcodec/mpegvideo.c | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c index 41127013c6..b2becd22bd 100644 --- a/libavcodec/mpegvideo.c +++ b/libavcodec/mpegvideo.c @@ -5172,16 +5172,6 @@ static int encode_thread(AVCodecContext *c, void *arg){ encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR, pb, pb2, tex_pb, &dmin, &next_block, 0, 0); } - if(mb_type&CANDIDATE_MB_TYPE_DIRECT){ - int mx= s->b_direct_mv_table[xy][0]; - int my= s->b_direct_mv_table[xy][1]; - - s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT; - s->mb_intra= 0; - ff_mpeg4_set_direct_mv(s, mx, my); - encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb, - &dmin, &next_block, mx, my); - } if(mb_type&CANDIDATE_MB_TYPE_FORWARD_I){ s->mv_dir = MV_DIR_FORWARD; s->mv_type = MV_TYPE_FIELD; @@ -5280,10 +5270,20 @@ static int encode_thread(AVCodecContext *c, void *arg){ } } } - qp= best_s.qscale; - s->current_picture.qscale_table[xy]= qp; } } + if(mb_type&CANDIDATE_MB_TYPE_DIRECT){ + int mx= s->b_direct_mv_table[xy][0]; + int my= s->b_direct_mv_table[xy][1]; + + backup_s.dquant = 0; + s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT; + s->mb_intra= 0; + ff_mpeg4_set_direct_mv(s, mx, my); + encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb, + &dmin, &next_block, mx, my); + } + s->current_picture.qscale_table[xy]= best_s.qscale; copy_context_after_encode(s, &best_s, -1);