[FFmpeg-devel] IP camera that fails to give credit

Dominik 'Rathann' Mierzejewski dominik
Mon Feb 11 13:17:10 CET 2008


While dumping a MPEG-ES stream from an IP camera by ACTi Corp, I noticed
that the video stream is identified with our unique fourcc (FMP4). Their
documentation, however, fails to mention FFmpeg. The exact model that I
have at work is ACM-3211p [1]. The firmware [2] comes with a few PDFs, but they
contain no mention of FFmpeg either. If someone has some time to investigate
this, please do so.

Here's what ffmpeg has to say about the dumped stream:
ffmpeg -i /tmp/video-MP4V-ES-1
FFmpeg version SVN-r11482, Copyright (c) 2000-2008 Fabrice Bellard, et al.
  configuration: --prefix=/usr --mandir=/usr/share/man --libdir=/usr/lib --shlibdir=/usr/lib --enable-pthreads --enable-libmp3lame --enable-libfaad --enable-libfaadbin --enable-libfaac --enable-libxvid --enable-libx264 --enable-liba52 --enable-liba52bin --enable-pp --enable-shared --enable-libdc1394 --enable-libtheora --enable-gpl
  libavutil version: 49.6.0
  libavcodec version: 51.49.0
  libavformat version: 52.3.0
  built on Jan 20 2008 15:31:32, gcc: 4.2.1 20070705 (prerelease) (SUSE Linux)
Marker bit missing before time_increment
[NULL @ 0xb7d11330]hmm, seems the headers are not complete, trying to guess time_increment_bits
[NULL @ 0xb7d11330]my guess is 16 bits ;)
Marker bit missing before vop_coded
Input #0, m4v, from '/tmp/video-MP4V-ES-1':
  Duration: N/A, bitrate: N/A
    Stream #0.0: Video: mpeg4, yuv420p, 640x480 [PAR 1:1 DAR 4:3],  5.00 tb(r)
Must supply at least one output file


[1] http://www.acti.com/productsV2/Product_Information.Asp?strCatalog_ID=57803431-9E23-45A9-A1D8-81F13AC9D55F&strCategory_ID={0A304121-30B9-41E0-943E-C2E64CBA1F5&strProduct_ID={2A963219-BE1B-491A-8DC1-3F830C430DA
[2] http://actiftp.hosting4less.com/ACTIGENERAL/Firmware&Manual/ACM-32XX/

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