highperfocused/ffmpeg
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

use mpeg2 quantization bias for mjpeg.

Browse Source 
this seems to improve RD performance.

Originally committed as revision 22550 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2010-03-15 16:37:02 +00:00
parent db128802c5
commit bd57cae86f
7 changed files with 34 additions and 37 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
libavcodec/mpegvideo_enc.c
View File

@ -503,10 +503,7 @@ av_cold int MPV_encode_init(AVCodecContext *avctx)
// return -1; // return -1;
} }
if(s->codec_id==CODEC_ID_MJPEG){ if(s->mpeg_quant || s->codec_id==CODEC_ID_MPEG1VIDEO || s->codec_id==CODEC_ID_MPEG2VIDEO || s->codec_id==CODEC_ID_MJPEG){
s->intra_quant_bias= 1<<(QUANT_BIAS_SHIFT-1); //(a + x/2)/x
s->inter_quant_bias= 0;
}else if(s->mpeg_quant || s->codec_id==CODEC_ID_MPEG1VIDEO || s->codec_id==CODEC_ID_MPEG2VIDEO){
s->intra_quant_bias= 3<<(QUANT_BIAS_SHIFT-3); //(a + x*3/8)/x s->intra_quant_bias= 3<<(QUANT_BIAS_SHIFT-3); //(a + x*3/8)/x
s->inter_quant_bias= 0; s->inter_quant_bias= 0;
}else{ }else{

2
tests/codec-regression.sh
View File

@ -150,7 +150,7 @@ do_video_decoding
fi fi
if [ -n "$do_mjpeg" ] ; then if [ -n "$do_mjpeg" ] ; then
do_video_encoding mjpeg.avi "-qscale 10" "-an -vcodec mjpeg -pix_fmt yuvj420p" do_video_encoding mjpeg.avi "-qscale 9" "-an -vcodec mjpeg -pix_fmt yuvj420p"
do_video_decoding "" "-pix_fmt yuv420p" do_video_decoding "" "-pix_fmt yuv420p"
fi fi

6
tests/ref/lavf/jpg
View File

@ -1,3 +1,3 @@
d56c19d41e9754939ea0f15d09bc4a32 *./tests/data/images/jpg/02.jpg 131878fee153a086d740543fbf2ab359 *./tests/data/images/jpg/02.jpg
./tests/data/images/jpg/%02d.jpg CRC=0xb8bc5a32 ./tests/data/images/jpg/%02d.jpg CRC=0x8b019f23
31763 ./tests/data/images/jpg/02.jpg 28406 ./tests/data/images/jpg/02.jpg

2
tests/ref/seek/%02d.jpg.ref
View File

@ -1,4 +1,4 @@
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: -1 size: 31351 ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: -1 size: 28070
ret:-EINVAL st:-1 flags:0 ts:-1.000000 ret:-EINVAL st:-1 flags:0 ts:-1.000000
ret:-EINVAL st:-1 flags:1 ts: 1.894167 ret:-EINVAL st:-1 flags:1 ts: 1.894167
ret:-EINVAL st: 0 flags:0 ts: 0.800000 ret:-EINVAL st: 0 flags:0 ts: 0.800000

40
tests/ref/seek/mjpeg.avi.ref
View File

@ -1,46 +1,46 @@
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 5660 size: 12650 ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 5660 size: 12096
ret: 0 st:-1 flags:0 ts:-1.000000 ret: 0 st:-1 flags:0 ts:-1.000000
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 5660 size: 12650 ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 5660 size: 12096
ret: 0 st:-1 flags:1 ts: 1.894167 ret: 0 st:-1 flags:1 ts: 1.894167
ret: 0 st: 0 flags:1 dts: 1.880000 pts: 1.880000 pos: 656618 size: 15508 ret: 0 st: 0 flags:1 dts: 1.880000 pts: 1.880000 pos: 627866 size: 14811
ret: 0 st: 0 flags:0 ts: 0.800000 ret: 0 st: 0 flags:0 ts: 0.800000
ret: 0 st: 0 flags:1 dts: 0.800000 pts: 0.800000 pos: 258298 size: 13522 ret: 0 st: 0 flags:1 dts: 0.800000 pts: 0.800000 pos: 247500 size: 12959
ret:-1 st: 0 flags:1 ts:-0.320000 ret:-1 st: 0 flags:1 ts:-0.320000
ret:-1 st:-1 flags:0 ts: 2.576668 ret:-1 st:-1 flags:0 ts: 2.576668
ret: 0 st:-1 flags:1 ts: 1.470835 ret: 0 st:-1 flags:1 ts: 1.470835
ret: 0 st: 0 flags:1 dts: 1.480000 pts: 1.480000 pos: 502632 size: 15224 ret: 0 st: 0 flags:1 dts: 1.480000 pts: 1.480000 pos: 480770 size: 14528
ret: 0 st: 0 flags:0 ts: 0.360000 ret: 0 st: 0 flags:0 ts: 0.360000
ret: 0 st: 0 flags:1 dts: 0.360000 pts: 0.360000 pos: 115666 size: 12453 ret: 0 st: 0 flags:1 dts: 0.360000 pts: 0.360000 pos: 111012 size: 11927
ret:-1 st: 0 flags:1 ts:-0.760000 ret:-1 st: 0 flags:1 ts:-0.760000
ret:-1 st:-1 flags:0 ts: 2.153336 ret:-1 st:-1 flags:0 ts: 2.153336
ret: 0 st:-1 flags:1 ts: 1.047503 ret: 0 st:-1 flags:1 ts: 1.047503
ret: 0 st: 0 flags:1 dts: 1.040000 pts: 1.040000 pos: 341140 size: 14170 ret: 0 st: 0 flags:1 dts: 1.040000 pts: 1.040000 pos: 326684 size: 13489
ret: 0 st: 0 flags:0 ts:-0.040000 ret: 0 st: 0 flags:0 ts:-0.040000
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 5660 size: 12650 ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 5660 size: 12096
ret: 0 st: 0 flags:1 ts: 2.840000 ret: 0 st: 0 flags:1 ts: 2.840000
ret: 0 st: 0 flags:1 dts: 1.960000 pts: 1.960000 pos: 687716 size: 15576 ret: 0 st: 0 flags:1 dts: 1.960000 pts: 1.960000 pos: 657534 size: 14881
ret: 0 st:-1 flags:0 ts: 1.730004 ret: 0 st:-1 flags:0 ts: 1.730004
ret: 0 st: 0 flags:1 dts: 1.720000 pts: 1.720000 pos: 594720 size: 15432 ret: 0 st: 0 flags:1 dts: 1.720000 pts: 1.720000 pos: 568664 size: 14746
ret: 0 st:-1 flags:1 ts: 0.624171 ret: 0 st:-1 flags:1 ts: 0.624171
ret: 0 st: 0 flags:1 dts: 0.640000 pts: 0.640000 pos: 204894 size: 13273 ret: 0 st: 0 flags:1 dts: 0.640000 pts: 0.640000 pos: 196428 size: 12719
ret: 0 st: 0 flags:0 ts:-0.480000 ret: 0 st: 0 flags:0 ts:-0.480000
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 5660 size: 12650 ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 5660 size: 12096
ret: 0 st: 0 flags:1 ts: 2.400000 ret: 0 st: 0 flags:1 ts: 2.400000
ret: 0 st: 0 flags:1 dts: 1.960000 pts: 1.960000 pos: 687716 size: 15576 ret: 0 st: 0 flags:1 dts: 1.960000 pts: 1.960000 pos: 657534 size: 14881
ret: 0 st:-1 flags:0 ts: 1.306672 ret: 0 st:-1 flags:0 ts: 1.306672
ret: 0 st: 0 flags:1 dts: 1.320000 pts: 1.320000 pos: 442576 size: 14799 ret: 0 st: 0 flags:1 dts: 1.320000 pts: 1.320000 pos: 423494 size: 14119
ret: 0 st:-1 flags:1 ts: 0.200839 ret: 0 st:-1 flags:1 ts: 0.200839
ret: 0 st: 0 flags:1 dts: 0.200000 pts: 0.200000 pos: 66366 size: 12233 ret: 0 st: 0 flags:1 dts: 0.200000 pts: 0.200000 pos: 63872 size: 11714
ret: 0 st: 0 flags:0 ts:-0.920000 ret: 0 st: 0 flags:0 ts:-0.920000
ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 5660 size: 12650 ret: 0 st: 0 flags:1 dts: 0.000000 pts: 0.000000 pos: 5660 size: 12096
ret: 0 st: 0 flags:1 ts: 2.000000 ret: 0 st: 0 flags:1 ts: 2.000000
ret: 0 st: 0 flags:1 dts: 1.960000 pts: 1.960000 pos: 687716 size: 15576 ret: 0 st: 0 flags:1 dts: 1.960000 pts: 1.960000 pos: 657534 size: 14881
ret: 0 st:-1 flags:0 ts: 0.883340 ret: 0 st:-1 flags:0 ts: 0.883340
ret: 0 st: 0 flags:1 dts: 0.880000 pts: 0.880000 pos: 285502 size: 13726 ret: 0 st: 0 flags:1 dts: 0.880000 pts: 0.880000 pos: 273520 size: 13131
ret:-1 st:-1 flags:1 ts:-0.222493 ret:-1 st:-1 flags:1 ts:-0.222493
ret:-1 st: 0 flags:0 ts: 2.680000 ret:-1 st: 0 flags:0 ts: 2.680000
ret: 0 st: 0 flags:1 ts: 1.560000 ret: 0 st: 0 flags:1 ts: 1.560000
ret: 0 st: 0 flags:1 dts: 1.560000 pts: 1.560000 pos: 533212 size: 15322 ret: 0 st: 0 flags:1 dts: 1.560000 pts: 1.560000 pos: 509938 size: 14597
ret: 0 st:-1 flags:0 ts: 0.460008 ret: 0 st:-1 flags:0 ts: 0.460008
ret: 0 st: 0 flags:1 dts: 0.480000 pts: 0.480000 pos: 153232 size: 12726 ret: 0 st: 0 flags:1 dts: 0.480000 pts: 0.480000 pos: 146970 size: 12168
ret:-1 st:-1 flags:1 ts:-0.645825 ret:-1 st:-1 flags:1 ts:-0.645825

8
tests/ref/vsynth1/mjpeg
View File

@ -1,4 +1,4 @@
af7ddc0d60cb2d1d83b0bfd829cc7b3a *./tests/data/vsynth1/mjpeg.avi 8bbf9513b1822945539f27a6eff3c7fa *./tests/data/vsynth1/mjpeg.avi
1570366 ./tests/data/vsynth1/mjpeg.avi 1516140 ./tests/data/vsynth1/mjpeg.avi
556ba548fe2b1b4ca98ef3f5d5e94bb8 *./tests/data/mjpeg.vsynth1.out.yuv c6ae81b5b896e4d05ff584311aebdb18 *./tests/data/mjpeg.vsynth1.out.yuv
stddev: 7.92 PSNR: 30.15 bytes: 7603200/ 7603200 stddev: 7.87 PSNR: 30.21 bytes: 7603200/ 7603200

8
tests/ref/vsynth2/mjpeg
View File

@ -1,4 +1,4 @@
765b2637f313eda33afdcdc384bfbc06 *./tests/data/vsynth2/mjpeg.avi 89df32b46c977fb4cb140ec6c489dd76 *./tests/data/vsynth2/mjpeg.avi
704100 ./tests/data/vsynth2/mjpeg.avi 673224 ./tests/data/vsynth2/mjpeg.avi
3dc419bf8ddc7482d811e4c9dcf9d418 *./tests/data/mjpeg.vsynth2.out.yuv a96a4e15ffcb13e44360df642d049496 *./tests/data/mjpeg.vsynth2.out.yuv
stddev: 4.38 PSNR: 35.29 bytes: 7603200/ 7603200 stddev: 4.32 PSNR: 35.40 bytes: 7603200/ 7603200