[FFmpeg-trac] #4682(ffmpeg:new): ffmpeg 2.7 ignores forced FourCC (-vtag) while multiplexing to AVI

FFmpeg trac at avcodec.org
Sat Jun 27 20:49:46 CEST 2015


#4682: ffmpeg 2.7 ignores forced FourCC (-vtag) while multiplexing to AVI
--------------------------------+--------------------------------------
             Reporter:  LigH    |                     Type:  defect
               Status:  new     |                 Priority:  normal
            Component:  ffmpeg  |                  Version:  git-master
             Keywords:          |               Blocked By:
             Blocking:          |  Reproduced by developer:  0
Analyzed by developer:  0       |
--------------------------------+--------------------------------------
 Summary of the bug:

 Multiplexing a raw MPEG4-ASP stream created by xvid_encraw (*.m4v) into an
 AVI container does not use the FourCC enforced with the parameter -vtag
 (instead keeps "FMP4").

 How to reproduce:
 {{{
 ffmpeg -y -i "*.m4v" -vcodec copy -vtag XVID "*.avi"
 }}}

 More details in the attached report output.

 Despite reporting to use the enforced FourCC "XVID", the AVI still
 contains the FourCC "FMP4" (for both locations in the AVI header).

--
Ticket URL: <https://trac.ffmpeg.org/ticket/4682>
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