[FFmpeg-trac] #6915(avformat:open): DASH audio segments duration doesn't match exactly with video segments duration.

[FFmpeg]

#6915: DASH audio segments duration doesn't match exactly with video segments
duration.
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             Reporter:  beloko      |                    Owner:  stevenliu
                 Type:  defect      |                   Status:  open
             Priority:  normal      |                Component:  avformat
              Version:  git-master  |               Resolution:
             Keywords:              |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
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Comment (by beloko):

 Replying to [comment:56 stevenliu]:
 > If you don't have encoder, just remux stream or file to hls, then the
 GOP size cannot decide by you, for example, get a video from me, I ask you
 remux it to HLS,   If transcode or modify the key frame interval I need
 cost lots of CPU, but i don't have lots of CPU, only used for IO ,for
 example CDN
 >
 > Download some video files, and just use -c copy to make HLS, maybe you
 can understand that.

 The segmenter with -v copy cuts the content where it can. When an Iframe
 is available. It depends how the source file was encoded before. Usually
 when the video codec found a scenecut to preserve picture quality.

 If the #EXT-X-TARGETDURATION value is 2 in the audio playlist and the
 #EXT-X-TARGETDURATION value is 1 in the video playlist. Fix the
 #EXT-X-TARGETDURATION value to 2 could solve your issue.

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Ticket URL: <https://trac.ffmpeg.org/ticket/6915#comment:58>
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