[FFmpeg-trac] #6902(undetermined:closed): concat outputs only the first file
FFmpeg
trac at avcodec.org
Sat Dec 9 00:14:21 EET 2017
#6902: concat outputs only the first file
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Reporter: xamarin | Owner:
Type: defect | Status: closed
Priority: normal | Component:
Version: unspecified | undetermined
Keywords: | Resolution: invalid
Blocking: | Blocked By:
Analyzed by developer: 0 | Reproduced by developer: 0
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Comment (by llogan):
It is not possible to simply physically concat MP4 on a file level such as
by using the concat protocol and expect it to work.
From the [https://ffmpeg.org/faq.html#How-can-I-join-video-files_003f FAQ]
regarding the concat protocol:
> A few multimedia containers (MPEG-1, MPEG-2 PS, DV) allow one to
concatenate video by merely concatenating the files containing them.
As Carl said, use the concat demuxer or concat filter instead for your MP4
inputs.
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Ticket URL: <https://trac.ffmpeg.org/ticket/6902#comment:3>
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