[FFmpeg-trac] #9509(undetermined:closed): Video unplayable in non-FFmpeg based players if it's past a certain length

FFmpeg trac at avcodec.org
Sat Nov 20 10:25:10 EET 2021


#9509: Video unplayable in non-FFmpeg based players if it's past a certain length
-------------------------------------+-------------------------------------
             Reporter:  Balrog       |                    Owner:  (none)
                 Type:  defect       |                   Status:  closed
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  unspecified  |               Resolution:  invalid
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Changes (by mkver):

 * status:  new => closed
 * resolution:   => invalid
 * component:  ffmpeg => undetermined

Comment:

 1. MPC-HC also uses FFmpeg (via LAV Filters which uses FFmpeg).
 2. The command line you posted creates a file with an ordinary video (not
 attached picture!) track as well as an audio track. So the video track is
 unorthodox and this can make the file unplayable for players that expect
 video tracks to be non-sparse. The fact that MPV can play this file
 suggests that this is an issue in MPC-HC (consider increasing the
 length/size of the LAV Filters queue).
 3. Use "-disposition:v +attached_pic" to create an attached pic. And use a
 video codec appropriate for attached pics (e.g. -c:v copy in your case).
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/9509#comment:1>
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