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ffmpeg
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mergeing inter & intra rl_length tables (50% smaller & no meassureable difference in filesize/quality) 

Originally committed as revision 1078 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2002-10-27 12:20:58 +00:00
parent f3c09da19f
commit 060f89b328
2 changed files with 8 additions and 9 deletions
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15
libavcodec/msmpeg4.c
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@ -74,7 +74,7 @@ int frame_count = 0;
#include "msmpeg4data.h"
static UINT8 rl_length[2][NB_RL_TABLES][MAX_LEVEL+1][MAX_RUN+1][2];
static UINT8 rl_length[NB_RL_TABLES][MAX_LEVEL+1][MAX_RUN+1][2];
#ifdef STATS
@ -234,8 +234,7 @@ void ff_msmpeg4_encode_init(MpegEncContext *s)
for(run=0; run<=MAX_RUN; run++){
int last;
for(last=0; last<2; last++){
rl_length[0][i][level][run][last]= get_size_of_code(s, &rl_table[ i], last, run, level,0);
rl_length[1][i][level][run][last]= get_size_of_code(s, &rl_table[ i], last, run, level,1);
rl_length[i][level][run][last]= get_size_of_code(s, &rl_table[ i], last, run, level, 0);
}
}
}
@ -310,12 +309,12 @@ static void find_best_tables(MpegEncContext * s)
int intra_chroma_count= s->ac_stats[1][1][level][run][last];
if(s->pict_type==I_TYPE){
size += intra_luma_count *rl_length[1][i ][level][run][last];
chroma_size+= intra_chroma_count*rl_length[1][i+3][level][run][last];
size += intra_luma_count *rl_length[i ][level][run][last];
chroma_size+= intra_chroma_count*rl_length[i+3][level][run][last];
}else{
size+= intra_luma_count *rl_length[1][i ][level][run][last]
+intra_chroma_count*rl_length[1][i+3][level][run][last]
+inter_count *rl_length[0][i+3][level][run][last];
size+= intra_luma_count *rl_length[i ][level][run][last]
+intra_chroma_count*rl_length[i+3][level][run][last]
+inter_count *rl_length[i+3][level][run][last];
}
}
if(last_size == size+chroma_size) break;

2
tests/ffmpeg.regression.ref
View File

@ -3,7 +3,7 @@ ffmpeg regression test
59a66b108e8bbd3867c4ee27f4bbe2ca *./data/out.yuv
20f237122350f1248d9d51489bb79092 *./data/a-msmpeg4v2.avi
74675eb582376359fbcf76ff2fb034b6 *./data/out.yuv
297793ed0fd5793182a92e63ffd764af *./data/a-msmpeg4.avi
d6367d6abb406b438cb57a7ebc4b927d *./data/a-msmpeg4.avi
951aa2df4ef4c1eeee3ccc8904de8e48 *./data/out.yuv
50b4590a3615a556361d75db8c6d43b3 *./data/a-wmv1.avi
3ed8e11a8a8147c3e7d736593fccae79 *./data/out.yuv