[mythtv-commits] Ticket #4976: Cannot change Audio Channels in DVB Streams

[MythTV]

#4976: Cannot change Audio Channels in DVB Streams
----------------------------+-----------------------------------------------
 Reporter:  anonymous       |        Owner:  ijr           
     Type:  defect          |       Status:  infoneeded_new
 Priority:  major           |    Milestone:  0.21.1        
Component:  Video Playback  |      Version:  0.21-fixes    
 Severity:  medium          |   Resolution:                
  Mlocked:  0               |  
----------------------------+-----------------------------------------------

Comment(by Nick Morrott <knowledgejunkie (at) gmail (dot) com>):

 Running trunk r20830 with DVB-S, I still have problmes changing to another
 audio channel. Testing with BBC England on Freesat (UK) which reports 2
 audio streams in the menu gave (-v audio):

 {{{
 YadifDeint: size changed from 0 x 0 -> 720 x 576
 YadifDeint: Using existing thread.
 2009-07-08 20:02:08.450 VideoOutputXv: XVideo Adaptor Name: 'Intel(R)
 Textured Video'
 2009-07-08 20:02:08.861 AFD: Opened codec 0xb4efec0, id(MPEG2VIDEO)
 type(Video)
 2009-07-08 20:02:08.861 AFD: codec MP2 has 2 channels
 2009-07-08 20:02:08.861 AFD: Opened codec 0x9eff440, id(MP2) type(Audio)
 2009-07-08 20:02:08.861 AFD: Audio Track #1 is A/V stream #1 and has 2
 channels in the English language(6647399).
 2009-07-08 20:02:08.861 AFD: codec MP2 has 2 channels
 2009-07-08 20:02:08.861 AFD: Opened codec 0xb4d9e80, id(MP2) type(Audio)
 2009-07-08 20:02:08.861 AFD: Audio Track #2 is A/V stream #2 and has 2
 channels in the Unknown language(5128530).
 2009-07-08 20:02:08.861 AFD: Opened codec 0xb06a750, id(DVB_SUBTITLE)
 type(Subtitle)
 2009-07-08 20:02:09.002 AFD: Trying to select audio track (w/lang)
 2009-07-08 20:02:09.003 AFD: Selected track 1: English MP2 2ch (A/V Stream
 #1)
 2009-07-08 20:02:09.003 AFD: Initializing audio parms from audio track #1
 2009-07-08 20:02:09.003 AFD: Audio format changed
                         from id(NONE)    -1Hz -1ch   0bps    ; id(NONE)
 -1Hz -1ch   0bps
                         to   id( MP2) 48000Hz  2ch  16bps    ; id( MP2)
 48000Hz  2ch  16bps
 2009-07-08 20:02:09.008 AO: Killing AudioOutputDSP
 2009-07-08 20:02:09.008 Opening audio device 'default'. ch 2(2) sr 48000
 2009-07-08 20:02:09.008 Opening ALSA audio device 'default'.
 2009-07-08 20:02:09.019 in SetParameters(format=2, channels=2, rate=48000,
 buffer_time=400000, period_time=25000)
 2009-07-08 20:02:09.020 ALSA, Warning: mmap not available, attempting to
 fall back to slow writes.
 2009-07-08 20:02:09.020 get_buffer_size returned 19200
 2009-07-08 20:02:09.020 set_period_time_near returned 25000
 2009-07-08 20:02:09.020 get_period_size returned 1200
 2009-07-08 20:02:09.080 AO: Audio fragment size: 6144
 2009-07-08 20:02:09.082 AO: Audio Stretch Factor: 1
 2009-07-08 20:02:09.082 Audio Codec Used: not set
 2009-07-08 20:02:09.083 AO: Ending reconfigure
 2009-07-08 20:02:09.083 NVP(0): Enabling Audio
 2009-07-08 20:02:09.083 AO: kickoffOutputAudioLoop: pid = 4172
 2009-07-08 20:02:09.083 AO: no change exiting
 2009-07-08 20:02:09.083 AO: OutputAudioLoop: Play Event
 2009-07-08 20:02:09.130 AO: Pause 1
 2009-07-08 20:02:09.130 AO: OutputAudioLoop: audio paused
 2009-07-08 20:02:09.206 AO: Pause 0
 2009-07-08 20:02:09.217 AO: OutputAudioLoop: Play Event
 2009-07-08 20:02:09.244 AO: dropping back audio_buffer_unused
 2009-07-08 20:02:09.287 AO: dropping back audio_buffer_unused
 2009-07-08 20:02:09.318 AO: dropping back audio_buffer_unused
 2009-07-08 20:02:09.351 AO: dropping back audio_buffer_unused
 2009-07-08 20:02:09.356 AO: dropping back audio_buffer_unused
 2009-07-08 20:02:09.387 AO: dropping back audio_buffer_unused
 2009-07-08 20:02:09.393 AO: dropping back audio_buffer_unused
 2009-07-08 20:02:09.398 AO: dropping back audio_buffer_unused
 2009-07-08 20:02:09.403 AO: dropping back audio_buffer_unused
 2009-07-08 20:02:09.408 AO: dropping back audio_buffer_unused
 2009-07-08 20:02:09.413 AO: dropping back audio_buffer_unused
 2009-07-08 20:02:09.418 AO: dropping back audio_buffer_unused
 2009-07-08 20:02:09.424 AO: dropping back audio_buffer_unused
 2009-07-08 20:02:09.429 AO: dropping back audio_buffer_unused
 2009-07-08 20:02:09.434 AO: dropping back audio_buffer_unused
 2009-07-08 20:02:09.439 AO: dropping back audio_buffer_unused
 SetSubtitleMode ResidentProgram is not implemented
 2009-07-08 20:02:38.051 AFD: Audio stream type not changed.
 2009-07-08 20:02:51.426 AFD: Audio stream type not changed.
 2009-07-08 20:03:28.026 TV: Attempting to change from Watching
 WatchingLiveTV to None
 2009-07-08 20:03:28.053 AO: Killing AudioOutputDSP
 2009-07-08 20:03:28.062 AO: OutputAudioLoop: Stop Event
 2009-07-08 20:03:28.062 AO: kickoffOutputAudioLoop exiting
 2009-07-08 20:03:28.984 TV: Changing from Watching WatchingLiveTV to None
 }}}

 The audio channel list contained two 2 entries. Changing to the second did
 not happen - default track kept playing, although the newly chosen channel
 was checked when next entering the change audio track menu. Changing back
 to the default audio channel did not interrupt the audio stream and did
 reselect the first audio track in the menu again.

-- 
Ticket URL: <http://svn.mythtv.org/trac/ticket/4976#comment:9>
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