[mythtv-commits] Ticket #9926: IPTV BBC recordings can't be played.

[MythTV]

#9926: IPTV BBC recordings can't be played.
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 Reporter:  Jan Hugo Prins <jhp@…>            |          Owner:  beirdo
     Type:  Bug Report - General              |         Status:  closed
 Priority:  minor                             |      Milestone:  0.24.1
Component:  MythTV - Video Decoding           |        Version:  0.24.1
 Severity:  medium                            |     Resolution:  fixed
 Keywords:                                    |  Ticket locked:  0
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Changes (by Github):

 * status:  assigned => closed
 * resolution:   => fixed


Comment:

 Deal with incomplete PMT streams in BBC iPlayer IPTV

 Fixes #9926

 It turns out that the test recording (and presumably the others from the
 same
 source) contain incomplete PMT tables.  The size field for the PMT says
 that
 there will be 383 bytes of data, but the only data received is the 182
 bytes
 contained in the rest of that TS packet. i

 FFmpeg without MythTV modifications to mpegts.c can handle this just fine
 as
 it doesn't need to know about the contents of the PMT.  MythTV, however,
 depends on that information to determine what video and audio streams we
 have.

 To deal with this without affecting "normal" recordings, I have put in
 another
 fallback that will try to parse the PMT overriding the length to the
 length
 received in the TS packet.  This will only be used if it can not be parsed
 correctly, and if we've tried again without checking the CRC.  This third
 and
 final attempt, should it fail, will cause it to give up.  Should it
 succeed,
 there may be some streams not parsed, but whatever was in the first 182
 bytes
 of the PMT should be taken into consideration, and there should be
 playback.
  Branch:    master
  Changeset: c11ee69c81198dc221c874e8132f1f30a385fa63

-- 
Ticket URL: <http://code.mythtv.org/trac/ticket/9926#comment:3>
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