[Ffmpeg-devel] Bug Report: .AVI->.3GP transcoding with(-ss -t) is av desyn

[Bo Xie]

Hi,

   I follow the
guide(http://ffmpeg.sourceforge.net/ffmpeg-bugreport.html) to report
this bug. I want to use ffmpeg to transcode a .avi (from 00:10:00 to
00:15:00) to .3gp file.
   1.I am using the latest CVS
version(http://www1.mplayerhq.hu/MPlayer/cvs/FFMpeg-20050421.tar.bz2)
of FFMPEG.
   2.I configure it by "./configure --enable-mp3lame --enable-faac
--enable-faad --enable-amr_nb --enable-memalign-hack --enable-gpl
--enable-xvid --enable-dts --enable-a52 --enable-vhook"
   3.I run it by "ffmpeg.exe -ss 00:10:00 -t 00:05:00 -y -i E:\a.avi
-bitexact -vcodec xvid -s 320x240 -r 15 -b 190 -acodec amr_nb -ac 1
-ar 8000 -ab 12 -f 3gp c:\byffmpeg.3gp", and the following is log:
-------
ffmpeg version 0.4.9-pre1, build 4752, Copyright (c) 2000-2004 Fabrice Bellard
  configuration:  --enable-mp3lame --enable-faac --enable-faad
--enable-amr_nb --enable-memalign-hack --enable-gpl --enable-xvid
--enable-dts --enable-a52 --enable-vhook
  built on Apr 21 2005 13:42:25, gcc: 3.2.3 (mingw special 20030504-1)
Input #0, avi, from 'E:a.avi':
  Duration: 01:15:02.0, start: 0.000000, bitrate: 1312 kb/s
  Stream #0.0: Video: mpeg4, 560x352, 25.00 fps
  Stream #0.1: Audio: mp3, 48000 Hz, stereo, 119 kb/s
Output #0, 3gp, to 'c:byffmpeg.3gp':
  Stream #0.0: Video: xvid, 320x240, 15.00 fps, q=2-31, 190 kb/s
  Stream #0.1: Audio: amr_nb, 8000 Hz, mono, 12 kb/s
Stream mapping:
  Stream #0.0 -> #0.0
  Stream #0.1 -> #0.1
frame= 4500 q=5.0 Lsize=    7595kB time=300.0 bitrate= 207.4kbits/s    
video:7011kB audio:486kB global headers:0kB muxing overhead 1.313908%
-------
    The result .3gp is av desyn from the beginning.

Best Regards,
Xie Bo