Changes between Initial Version and Version 1 of Ticket #4992, comment 17


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Timestamp:
Nov 23, 2015, 4:29:13 PM (5 years ago)
Author:
abaudoux
Comment:

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  • Ticket #4992, comment 17

    initial v1  
    33ffmpeg -i ~/Downloads/ticket4992.ismv  -acodec copy -vcodec copy  -movflags faststart /tmp/out_fast_start.mp4
    44}}}
    5 Attached is the diff of the resulting file (left) with the working file remuxed from TS (right). As you can see there are differences in the atoms. I'm not mp4 expert but I guess somehow remuxing to TS first solves the issue.
     5Attached is the diff of the resulting file (left) with the working file remuxed from TS (right). As you can see there are differences in the atoms.
     6there seem to be a size mismatch in the stss and stts atoms. Maybe there lies the issue?
     7I'm not mp4 expert but I guess somehow remuxing to TS first solves the issue.
    68Do you know if it is possible to ask ffmpeg to reconstruct the atoms, like when muxing from ts, when using a mp4 as input file?
    79This way it would produce a readable file I guess.