#7351: Infinite loop during concatenation with empty streams
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Reporter: javer | Owner:
Type: defect | Status: open
Priority: normal | Component: avfilter
Version: git-master | Resolution:
Keywords: deadlock | Blocked By:
trim concat | Reproduced by developer: 1
Blocking: |
Analyzed by developer: 1 |
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Changes (by Cigaes):
* analyzed: 0 => 1
* status: new => open
* reproduced: 0 => 1
Comment:
The cause of the problem is this: when the second trim finishes
immediately, the framework wants concat to notice, and for that it
requests a frame on the video output. Normally, concat would make a
request on the corresponding video input and notice the end of stream.
But in these particular circumstances, the end of stream arrives while
concat is still processing the first segment, so it wants to finish its
audio before addressing video in the second segment.
The solution is to move concat to activate, which should not be that much
work, it is a rather simple filter. I will try to do something soon.
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Ticket URL: <https://trac.ffmpeg.org/ticket/7351#comment:5>
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