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FFmpeg avi duration error...-ss -t

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Oh JinSeok
FFmpeg avi duration error...-ss -t
on Jun 24, 2011 at 1:57:57 am

I'm not well English ;; sorry


Testing Windows,

FFmpeg version http://ffmpeg.zeranoe.com/builds/ download



E:\ffmpeg\bin>ffmpeg -i xxx.avi -vcodec copy -acodec copy -y -ss 30.0 -t 5.0 xxx_output.avi

ffmpeg version git-N-30344-g5501afa, Copyright (c) 2000-2011 the FFmpeg developers
built on May 27 2011 22:41:22 with gcc 4.5.3
configuration: --enable-gpl --enable-version3 --enable-memalign-hack --enable-runtime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib --pkg-config=pkg-config

libavutil 51. 2. 2 / 51. 2. 2
libavcodec 53. 6. 0 / 53. 6. 0
libavformat 53. 2. 0 / 53. 2. 0
libavdevice 53. 0. 0 / 53. 0. 0
libavfilter 2. 11. 0 / 2. 11. 0
libswscale 0. 14. 0 / 0. 14. 0
libpostproc 51. 2. 0 / 51. 2. 0
[avi @ 0000000001C4A380] max_analyze_duration 5000000 reached at 5002908

Seems stream 0 codec frame rate differs from container frame rate: 47.97 (32669/681) -> 23.98 (24000/1001)
Input #0, avi, from 'C:\Users\ojs88\parkgoal.avi':
Metadata:
encoder : PotEncoder
Duration: 00:01:12.20, start: 0.000000, bitrate: 3136 kb/s
Stream #0.0: Video: h264 (Main), yuv420p, 640x360 [PAR 1:1 DAR 16:9], 23.99 fps, 23.98 tbr, 23.99 tbn, 47.97 tbc
Stream #0.1: Audio: mp3, 44100 Hz, stereo, s16, 96 kb/s
Output #0, avi, to 'C:\Users\ojs88\parkgoal2.avi':
Metadata:
ISFT : Lavf53.2.0
Stream #0.0: Video: libx264, yuv420p, 640x360 [PAR 1:1 DAR 16:9], q=2-31, 23.99 tbn, 23.99 tbc
Stream #0.1: Audio: libmp3lame, 44100 Hz, stereo, 96 kb/s
Stream mapping:
Stream #0.0 -> #0.0
Stream #0.1 -> #0.1
Press [q] to stop, [?] for help
frame= 1012 fps= 0 q=-1.0 Lsize= 14860kB time=5.02 bitrate=24271.1kbits/s


Movie duration 72 sec.

Option -ss 30.0 , -t 5.0

result -> Movie duration 42 sec ( maybe 72sec - 30 sec )

and play movie , auido sound only 5 sec , but video 42 sec...


i think problem is codec

this movie codec

Stream #0.0: Video: h264 (Main), yuv420p, 640x360 [PAR 1:1 DAR 16:9], 23.99 fps, 23.98 tbr, 23.99 tbn, 47.97 tbc
Stream #0.1: Audio: mp3, 44100 Hz, stereo, s16, 96 kb/s


and i'm another movie test is no error ( avi , mpeg-4 )

Stream #0.0: Video: mpeg4, yuv420p, 720x480 [PAR 32:27 DAR 16:9], 29.97 tbr, 29.97 tbn, 29.97 tbc
Stream #0.1: Audio: ac3, 48000 Hz, stereo, s16, 192 kb/s



but i don't know exactly solution.... pleae help me


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