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use lagrange multipler instead of qp for ratecontrol, this may break some things, tell me ASAP if u notice anything broken

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quality which was 1..31 float is now a 1..FF_LAMBDA_MAX int, and FF_QP2LAMBDA * qp can be used to convert to the new range

Originally committed as revision 2348 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer
2003-10-07 11:32:40 +00:00
parent 7238579835
commit 158c7f059c
10 changed files with 125 additions and 96 deletions
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libavcodec/utils.c
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@@ -272,6 +272,8 @@ void avcodec_get_context_defaults(AVCodecContext *s){
s->release_buffer= avcodec_default_release_buffer;
s->get_format= avcodec_default_get_format;
s->me_subpel_quality=8;
s->lmin= FF_QP2LAMBDA * s->qmin;
s->lmax= FF_QP2LAMBDA * s->qmax;
s->intra_quant_bias= FF_DEFAULT_QUANT_BIAS;
s->inter_quant_bias= FF_DEFAULT_QUANT_BIAS;