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| author | Michael Niedermayer <michaelni@gmx.at> | 2003-10-07 11:32:40 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2003-10-07 11:32:40 +0000 |
| commit | 158c7f059c3906b0116ae73a7669a3bb7bc570bb (patch) | |
| tree | 1dbb85c2164bec440148a818aeafd6c6197b80c6 /libavcodec/mpegvideo.h | |
| parent | 72385798357e53f64ba5ac405fb1b227ddcffc6c (diff) | |
| download | ffmpeg-158c7f059c3906b0116ae73a7669a3bb7bc570bb.tar.gz | |
use lagrange multipler instead of qp for ratecontrol, this may break some things, tell me ASAP if u notice anything broken
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
Diffstat (limited to 'libavcodec/mpegvideo.h')
| -rw-r--r-- | libavcodec/mpegvideo.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/libavcodec/mpegvideo.h b/libavcodec/mpegvideo.h index d46d4b6a97..f1813f7568 100644 --- a/libavcodec/mpegvideo.h +++ b/libavcodec/mpegvideo.h @@ -354,7 +354,9 @@ typedef struct MpegEncContext { uint8_t *edge_emu_buffer; ///< points into the middle of allocated_edge_emu_buffer int qscale; ///< QP - float frame_qscale; ///< qscale from the frame level rc FIXME remove + int lambda; ///< lagrange multipler used in rate distortion + int lambda2; ///< (lambda*lambda) >> FF_LAMBDA_SHIFT + int *lambda_table; int adaptive_quant; ///< use adaptive quantization int dquant; ///< qscale difference to prev qscale int pict_type; ///< I_TYPE, P_TYPE, B_TYPE, ... |