[FFmpeg-trac] #1771(documentation:closed): The file size limit almost never works.

FFmpeg trac at avcodec.org
Mon Apr 8 08:27:38 EEST 2019


#1771: The file size limit almost never works.
-------------------------------------+-------------------------------------
             Reporter:               |                    Owner:
  agusdallalba                       |
                 Type:  defect       |                   Status:  closed
             Priority:  minor        |                Component:
                                     |  documentation
              Version:  git-master   |               Resolution:  fixed
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  1
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by Gyan):

 In theory, one could

 1) allow the user to set a trailer size threshold in % terms, or use a
 hardcoded value.

 2) write_packet could abort if current output size + pkt.size + above
 trailer estimate exceeds the fs limit.

 One complication would be missing interim frames for video streams with
 delay. But that could perhaps be ameliorated by taking into account
 video_delay from the stream's codecpar.

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Ticket URL: <https://trac.ffmpeg.org/ticket/1771#comment:7>
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