fixed unsigned pb
[libav.git] / doc / bench.txt
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1
2source: MarsAttack, divx, 800 kbit/s
3
4q=10 constant:
5
6* full motion search, fcode=1, half pel:
7 Video: opendivx (hq), 640x352, 25 fps, 200 kb/s
8frame= 500 q=10 size= 1815kB time=20.0 bitrate= 743.6kbits/s
9
10* log motion search:
11 Video: opendivx (hq), 640x352, 25 fps, 200 kb/s
12frame= 500 q=10 size= 1995kB time=20.0 bitrate= 817.2kbits/s
13
14* no motion search:
15 Video: opendivx, 640x352, 25 fps, 200 kb/s
16frame= 500 size= 3197kB time=20.0 fps=25.0 bitrate=1309.6kbits/s q=10
17
18* log motion search:
19 Video: opendivx (hq), 640x352, 25 fps, 200 kb/s
20frame= 500 q=10 size= 1995kB time=20.0 bitrate= 817.2kbits/s
21
22./ffmpeg -me log -t 20 -g 100 -qscale 10 -i img:%d.pgm -an /tmp/b.avi
23 Stream #0.0: Video: msmpeg4, 640x352, 25 fps, 200 kb/s
24frame= 500 q=10 size= 1833kB time=20.0 bitrate= 750.9kbits/s
25
26./ffmpeg -me full -t 20 -g 100 -qscale 10 -i img:%d.pgm -an /tmp/b.avi
27 Stream #0.0: Video: msmpeg4, 640x352, 25 fps, 200 kb/s
28frame= 500 q=10 size= 1793kB time=20.0 bitrate= 734.8kbits/s
29
30-------------------------------------------
31
32* with -sameq, -me log
33
34./ffmpeg -g 100 -t 20 -sameq -i MarsAttacks_f800.avi -an /tmp/a.avi
35 Stream #0.0: Video: msmpeg4, 640x352, 25 fps, 200 kb/s
36frame= 500 q= 5 size= 2605kB time=20.0 bitrate=1067.1kbits/s
37
38./ffmpeg -g 100 -t 20 -sameq -i MarsAttacks_f800.avi -f mpeg1video -an /tmp/a.mpg
39 Stream #0.0: Video: mpeg1video, 640x352, 25 fps, 200 kb/s
40frame= 500 q= 5 size= 2655kB time=20.0 bitrate=1087.7kbits/s
41
42./ffmpeg -g 100 -t 20 -sameq -i MarsAttacks_f800.avi -vcodec opendivx -an /tmp/a.avi
43frame= 500 q= 5 size= 2774kB time=20.0 bitrate=1136.2kbits/s
44
45
46the matrix, complete, video only:
47
48source=14147kB
49
50ffmpeg:
51 mpeg1 17154kB (20%)
52 msmpeg4 17229kB