[FFmpeg-trac] #7656(avformat:new): recording of .mpd list failed after 10 second recording

[FFmpeg]

#7656: recording of .mpd list failed after 10 second recording
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             Reporter:  Anan5a      |                    Owner:
                 Type:  defect      |                   Status:  new
             Priority:  normal      |                Component:  avformat
              Version:  git-master  |               Resolution:
             Keywords:  dash        |               Blocked By:
             Blocking:              |  Reproduced by developer:  1
Analyzed by developer:  0           |
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Comment (by tbucher):

 Yes, two methods available:

 - each DRM system has its own UUID, this mpd manifest declared in its
 schemeIdUri attribute that its UUID is edef8ba9-79d6-4ace-
 a3c8-27dcd51d21ed, which belongs to Widevine, please see for example
 https://dashif.org/identifiers/content_protection/ for more info.

 - utilized DRM system can also be identified by the same UUID in PSSH box
 of an initialization segment.

 There can be more DRM systems utilized for each stream as long as all
 adhere to CENC standards. Therefore the manifest can list more than one
 {{{ContentProtection}}} element for each track and have more than one PSSH
 box in initialization segments.

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Ticket URL: <https://trac.ffmpeg.org/ticket/7656#comment:4>
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