[Asterisk-video] Re: MP4 tools (for app_mp4)

[tech at i6net.com]

Selon tech at i6net.com:

More information about :

After a recording this is the ffmpeg command line executed :

FFmpeg version SVN-r7382, Copyright (c) 2000-2006 Fabrice Bellard, et al.
  configuration:  --enable-x264 --enable-gpl
  libavutil version: 49.1.0
  libavcodec version: 51.28.0
  libavformat version: 51.7.0
  built on Dec 29 2006 06:14:38, gcc: 4.1.2 20061028 (prerelease) (Debian
4.1.1-19)
[h263 @ 0x84da6f8]warning: first frame is no keyframe
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'record_1.mp4':
  Duration: 00:00:09.4, start: 0.000000, bitrate: 141 kb/s
  Stream #0.0(eng): Audio: pcm_mulaw, 8000 Hz, stereo, 128 kb/s
  Stream #0.1(eng): Data: rtp  / 0x20707472
  Stream #0.2(eng): Video: h263, yuv420p, 176x144, 34.58 fps(r)
  Stream #0.3(eng): Data: rtp  / 0x20707472


FFmpeg seems to analyse a stereo audio stream.
The file generated have a audio track divided by 2.

Examples :
Recorded file : http://www.i6net.com/download/record_1.mp4
FFmpeg converted file : http://www.i6net.com/download/record_1.mov

Best regards,


Tech

> Hello alls,
>
> I am trying to generate video contents for the app_mp4 application.
>
> 1/ How to generate video compatible for app_mp4 ?
> I have tried ffmpeg + mp4ceator but without success.
>
> 2/ How to convert mp4 record to a standard video format ?
> I have tried ffmpeg but the video / audio are not synchronized.
> (the audio track is shorter than the video).
>
> 3/ The video examples from the web site cannot be played too.
> I have 3 times the sames 2 tracks with mp4dump (I think I will have H263 /
> H263+
> / H264 and ulaw / alaw tracks, don't you?).
>
> I can give some samples of app_mp4 records.
> Thanks,
>
>
> Tech
>