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| author | Baptiste Coudurier <baptiste.coudurier@smartjog.com> | 2008-11-29 14:08:48 +0000 |
|---|---|---|
| committer | Stefano Sabatini <stefano.sabatini-lala@poste.it> | 2008-11-29 14:08:48 +0000 |
| commit | 3bff4d8b7a9342e795c925ebab407cead2b9b54e (patch) | |
| tree | 3c0aa9012cba95c2f5543d7b6334821bc908496c /libavcodec/ratecontrol.c | |
| parent | cd0e37d3b16c403d922857ffb7df35ed6e89e50d (diff) | |
| download | ffmpeg-3bff4d8b7a9342e795c925ebab407cead2b9b54e.tar.gz | |
Implement the fields rc_max_available_vbv_use and
rc_min_vbv_overflow_use in AVCodecContext, and use their values in the
ratecontrol code rather than hardcoded ones.
See the thread: "[RFC] ratecontrol buffer size magic".
Patch by Baptiste Coudurier.
Originally committed as revision 15955 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/ratecontrol.c')
| -rw-r--r-- | libavcodec/ratecontrol.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libavcodec/ratecontrol.c b/libavcodec/ratecontrol.c index 8e248b9083..c88059aa41 100644 --- a/libavcodec/ratecontrol.c +++ b/libavcodec/ratecontrol.c @@ -461,7 +461,7 @@ static double modify_qscale(MpegEncContext *s, RateControlEntry *rce, double q, else if(d<0.0001) d=0.0001; q*= pow(d, 1.0/s->avctx->rc_buffer_aggressivity); - q_limit= bits2qp(rce, FFMAX((min_rate - buffer_size + rcc->buffer_index)*3, 1)); + q_limit= bits2qp(rce, FFMAX((min_rate - buffer_size + rcc->buffer_index) * s->avctx->rc_min_vbv_overflow_use, 1)); if(q > q_limit){ if(s->avctx->debug&FF_DEBUG_RC){ av_log(s->avctx, AV_LOG_DEBUG, "limiting QP %f -> %f\n", q, q_limit); @@ -476,7 +476,7 @@ static double modify_qscale(MpegEncContext *s, RateControlEntry *rce, double q, else if(d<0.0001) d=0.0001; q/= pow(d, 1.0/s->avctx->rc_buffer_aggressivity); - q_limit= bits2qp(rce, FFMAX(rcc->buffer_index/3, 1)); + q_limit= bits2qp(rce, FFMAX(rcc->buffer_index * s->avctx->rc_max_available_vbv_use, 1)); if(q < q_limit){ if(s->avctx->debug&FF_DEBUG_RC){ av_log(s->avctx, AV_LOG_DEBUG, "limiting QP %f -> %f\n", q, q_limit); |