[FFmpeg-trac] #10629(undetermined:closed): ffmpeg concat destroys metadata tracks when combining TS (Transport Stream) files

[FFmpeg]

#10629: ffmpeg concat destroys metadata tracks when combining TS (Transport Stream)
files
-------------------------------------+-------------------------------------
             Reporter:  superbonaci  |                    Owner:  (none)
                 Type:  defect       |                   Status:  closed
             Priority:  minor        |                Component:
                                     |  undetermined
              Version:  6.0          |               Resolution:  invalid
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Changes (by mkver):

 * status:  new => closed
 * resolution:   => invalid

Comment:

 Replying to [comment:4 superbonaci]:
 > The file muxed by ffmpeg using the concat demuxer should match in hash
 (sha1) the one downloaded by "Video Download Helper" or
 "TwitchDownloaderCLI", because I think there's only one way to properly
 mux these parts into a single file so it's not noticeable any difference
 (correct me if I am wrong please).

 That is absolutely wrong: If you simply want to combine all these
 transport streams, use cat; instead of simply combining these files,
 FFmpeg demuxes the input files and remuxes them. (You could use the concat
 protocol together with the data demuxer ("-f data" as input option) and
 the data muxer to do what concat does.)
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/10629#comment:5>
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