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

FFmpeg trac at avcodec.org
Thu Dec 21 20:05:39 EET 2017


#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 j_karthic):

 Replying to [comment:37 beloko]:
 > Not sure Roger understood the question really or he forgot "Each Media
 Playlist in each Variant Stream MUST have the same target duration.".
 That's why the Apple mediastreamvalidator complains ;)

 I think, Roger was clear. Actually your original statement was

 {{{
 To be compliant with the Apple mediastreamvalidator tool, video segments
 and
 audio segments should have the same duration. And the
 #EXT-X-TARGETDURATION tag
 should have the value 4 instead of 5
 }}}

 That is not completely true. video and audio segments need not have the
 same duration. They just need to have the same "target" duration. The word
 "target" was missing in your statement :)
 Ofcourse you were right about the second part that #EXT-X-TARGETDURATION
 tag should have the value 4 instead of 5

--
Ticket URL: <https://trac.ffmpeg.org/ticket/6915#comment:38>
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