[mythtv-commits] Ticket #1104: multi channel audio support

MythTV mythtv at cvs.mythtv.org
Sun Oct 7 22:28:01 UTC 2007


#1104: multi channel audio support
-------------------------+--------------------------------------------------
 Reporter:  Mark Spieth  |        Owner:  ijr 
     Type:  enhancement  |       Status:  new 
 Priority:  minor        |    Milestone:  0.21
Component:  mythtv       |      Version:  head
 Severity:  medium       |   Resolution:      
  Mlocked:  0            |  
-------------------------+--------------------------------------------------

Comment(by paul at paulcatchpole.co.uk):

 In the mean time I've tried setting the database field to the
 "ALSA:softvol|surround51m" value and although my upmixed audio works as
 usual, trying a DVD with the internal player appears to use 'softvol'
 rather than the 5.1 PCM...

 That's what it 'sounds' like in any case, and I'm guessing that the
 'channels=2' in the setparameters line at the bottom of the following log
 confirms that?

 Interesting it doesn't report the audio device it's trying to open - that
 would be useful - is that debug line enabled by a different -v flag?

 Ta, PC

 2007-10-07 23:25:01.247 AFD: Warning, video codec 0x877fdb0 id(MPEG2VIDEO)
 type (Video) already open.
 2007-10-07 23:25:01.708 AFD: Setting maxchannels to 2, -1
 No accelerated IMDCT transform found
 2007-10-07 23:25:01.709 AFD: Audio Track #1 is A/V stream #1 and has 0
 channels in the Unknown language(0).
 2007-10-07 23:25:01.722 AFD: Selected track 1: English (A/V Stream #1)
 2007-10-07 23:25:01.766 AFD: Warning, video codec 0x877fdb0 id(MPEG2VIDEO)
 type (Video) already open.
 2007-10-07 23:25:02.094 AFD: Setting maxchannels to 2, -1
 No accelerated IMDCT transform found
 2007-10-07 23:25:02.095 AFD: Audio Track #1 is A/V stream #1 and has 0
 channels in the Unknown language(0).
 2007-10-07 23:25:02.112 AFD: Selected track 1: English AC3 5.1ch (A/V
 Stream #1)
 2007-10-07 23:25:02.113 AFD: Initializing audio parms from audio track #1
 2007-10-07 23:25:02.113 AFD: Audio format changed
                         from id(NONE)    -1Hz -1ch   0bps    ; id(NONE)
 -1Hz -1ch   0bps
                         to   id( AC3) 48000Hz  6ch  16bps    ; id( AC3)
 48000Hz  2ch  16bps
 2007-10-07 23:25:02.119 AO: Killing AudioOutputDSP
 2007-10-07 23:25:02.389 in SetParameters(format=2, channels=2, rate=48000,
 buffer_time=100000, period_time=25000)

-- 
Ticket URL: <http://svn.mythtv.org/trac/ticket/1104#comment:44>
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