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53 lines
1.7 KiB
53 lines
1.7 KiB
24 years ago
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source: MarsAttack, divx, 800 kbit/s
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q=10 constant:
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* full motion search, fcode=1, half pel:
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Video: opendivx (hq), 640x352, 25 fps, 200 kb/s
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frame= 500 q=10 size= 1815kB time=20.0 bitrate= 743.6kbits/s
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* log motion search:
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Video: opendivx (hq), 640x352, 25 fps, 200 kb/s
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frame= 500 q=10 size= 1995kB time=20.0 bitrate= 817.2kbits/s
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* no motion search:
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Video: opendivx, 640x352, 25 fps, 200 kb/s
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frame= 500 size= 3197kB time=20.0 fps=25.0 bitrate=1309.6kbits/s q=10
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* log motion search:
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Video: opendivx (hq), 640x352, 25 fps, 200 kb/s
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frame= 500 q=10 size= 1995kB time=20.0 bitrate= 817.2kbits/s
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./ffmpeg -me log -t 20 -g 100 -qscale 10 -i img:%d.pgm -an /tmp/b.avi
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Stream #0.0: Video: msmpeg4, 640x352, 25 fps, 200 kb/s
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frame= 500 q=10 size= 1833kB time=20.0 bitrate= 750.9kbits/s
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./ffmpeg -me full -t 20 -g 100 -qscale 10 -i img:%d.pgm -an /tmp/b.avi
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Stream #0.0: Video: msmpeg4, 640x352, 25 fps, 200 kb/s
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frame= 500 q=10 size= 1793kB time=20.0 bitrate= 734.8kbits/s
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-------------------------------------------
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* with -sameq, -me log
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./ffmpeg -g 100 -t 20 -sameq -i MarsAttacks_f800.avi -an /tmp/a.avi
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Stream #0.0: Video: msmpeg4, 640x352, 25 fps, 200 kb/s
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frame= 500 q= 5 size= 2605kB time=20.0 bitrate=1067.1kbits/s
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./ffmpeg -g 100 -t 20 -sameq -i MarsAttacks_f800.avi -f mpeg1video -an /tmp/a.mpg
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Stream #0.0: Video: mpeg1video, 640x352, 25 fps, 200 kb/s
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frame= 500 q= 5 size= 2655kB time=20.0 bitrate=1087.7kbits/s
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./ffmpeg -g 100 -t 20 -sameq -i MarsAttacks_f800.avi -vcodec opendivx -an /tmp/a.avi
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frame= 500 q= 5 size= 2774kB time=20.0 bitrate=1136.2kbits/s
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the matrix, complete, video only:
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source=14147kB
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ffmpeg:
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mpeg1 17154kB (20%)
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msmpeg4 17229kB
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