[SCM] libav/experimental: cleanup
siretart at users.alioth.debian.org
siretart at users.alioth.debian.org
Sun Jun 30 15:35:31 UTC 2013
The following commit has been merged in the experimental branch:
commit 3c5ce6dc99584a9a355e353cdba74b82ff703119
Author: Michael Niedermayer <michaelni at gmx.at>
Date: Wed Mar 5 20:13:11 2003 +0000
cleanup
Originally committed as revision 1627 to svn://svn.ffmpeg.org/ffmpeg/trunk
diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c
index a0c9e6e..f487c51 100644
--- a/libavcodec/mpegvideo.c
+++ b/libavcodec/mpegvideo.c
@@ -2217,78 +2217,11 @@ static inline void clip_coeffs(MpegEncContext *s, DCTELEM *block, int last_index
if (level>maxlevel) level=maxlevel;
else if(level<minlevel) level=minlevel;
- block[j]= level;
- }
-}
-
-static inline void requantize_coeffs(MpegEncContext *s, DCTELEM block[64], int oldq, int newq, int n)
-{
- int i;
-
- if(s->mb_intra){
- i=1; //skip clipping of intra dc
- //FIXME requantize, note (mpeg1/h263/h263p-aic dont need it,...)
- }else
- i=0;
-
- for(;i<=s->block_last_index[n]; i++){
- const int j = s->intra_scantable.permutated[i];
- int level = block[j];
-
- block[j]= ROUNDED_DIV(level*oldq, newq);
- }
- for(i=s->block_last_index[n]; i>=0; i--){
- const int j = s->intra_scantable.permutated[i];
- if(block[j]) break;
+ block[j]= level;
}
- s->block_last_index[n]= i;
}
-static inline void auto_requantize_coeffs(MpegEncContext *s, DCTELEM block[6][64])
-{
- int i,n, newq;
- const int maxlevel= s->max_qcoeff;
- const int minlevel= s->min_qcoeff;
- int largest=0, smallest=0;
-
- assert(s->adaptive_quant);
-
- for(n=0; n<6; n++){
- if(s->mb_intra){
- i=1; //skip clipping of intra dc
- //FIXME requantize, note (mpeg1/h263/h263p-aic dont need it,...)
- }else
- i=0;
-
- for(;i<=s->block_last_index[n]; i++){
- const int j = s->intra_scantable.permutated[i];
- int level = block[n][j];
- if(largest < level) largest = level;
- if(smallest > level) smallest= level;
- }
- }
-
- for(newq=s->qscale+1; newq<32; newq++){
- if( ROUNDED_DIV(smallest*s->qscale, newq) >= minlevel
- && ROUNDED_DIV(largest *s->qscale, newq) <= maxlevel)
- break;
- }
-
- if(s->out_format==FMT_H263){
- /* h263 like formats cannot change qscale by more than 2 easiely */
- if(s->avctx->qmin + 2 < newq)
- newq= s->avctx->qmin + 2;
- }
-
- for(n=0; n<6; n++){
- requantize_coeffs(s, block[n], s->qscale, newq, n);
- clip_coeffs(s, block[n], s->block_last_index[n]);
- }
-
- s->dquant+= newq - s->qscale;
- s->qscale= newq;
-}
#if 0
static int pix_vcmp16x8(uint8_t *s, int stride){ //FIXME move to dsputil & optimize
int score=0;
--
Libav/FFmpeg packaging
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