[mythtv] [mythtv-commits]Ticket #1104:multi channelaudio support

[Mark Spieth]

strange AC3 says 0 channels. shouldnt be. may be a bug in A52 lib in lac
but it does say using 6ch mode later.
can you make a bit (10M) of the file available somewhere please.

michael
yes I am using a via motherboard driver as in your list with only 6ch out
the driver does list the order I mentioned which is why I adjusted the ac3 
decoder to output in that order.
looks like other cases to figure out for 8ch out cards.
I know some others are using it successfully in analog mode. perhaps they 
would like to retest with HEAD and latest patch.
this is what Ill do first.
cheers
mark

2006-08-16 21:21:51.525 TV: Changing from None to WatchingPreRecorded
2006-08-16 21:21:51.525 Video timing method: USleep with busy wait
2006-08-16 21:21:51.506 Using realtime priority.
2006-08-16 21:21:51.533 AFD: Warning, video codec 0x835f0a0 id(MPEG2VIDEO) 
type (Video) already open.
2006-08-16 21:21:51.534 AFD: Warning, audio codec 0x83621b0 id(MP2) type 
(Audio) already open, leaving it alone.
2006-08-16 21:21:51.534 AVFD: codec MP2 has 2 channels
2006-08-16 21:21:51.534 AFD: Audio Track #1 is A/V stream #1 and has 2 
channels in the Unknown language(0).
2006-08-16 21:21:51.535 AVFD: codec AC3 has 0 channels
2006-08-16 21:21:51.535 AFD: Opened codec 0x829b990, id(AC3) type(Audio)
2006-08-16 21:21:51.535 AFD: Audio Track #2 is A/V stream #2 and has 0 
channels in the Unknown language(0).
2006-08-16 21:21:51.586 AFD: Trying to reselect audio track
2006-08-16 21:21:51.586 AFD: Selected track 1: Unknown MP2 2ch (A/V Stream 
#1)
2006-08-16 21:21:51.709 AO: Pause 0
2006-08-16 21:21:57.714 AFD: Initializing audio parms from audio track #2
2006-08-16 21:21:57.714 AFD: Audio format changed
                  from id( MP2) 48000Hz  2ch  16bps    ; id( MP2) 48000Hz 
2ch  16bps
                  to   id( AC3) 48000Hz  6ch  16bps    ; id( AC3) 48000Hz 
6ch  16bps
2006-08-16 21:21:57.714 AO: SetEffDsp: 4800000
2006-08-16 21:21:57.714 AO: Killing AudioOutputDSP
2006-08-16 21:21:57.720 AO: OutputAudioLoop: Stop Event
2006-08-16 21:21:57.721 AO: kickoffOutputAudioLoop exiting
2006-08-16 21:21:58.049 Opening audio device '/dev/dsp'. ch 6 sr 48000
2006-08-16 21:21:58.049 Opening OSS audio device '/dev/dsp'.
2006-08-16 21:21:58.051 AO: Audio fragment size: 16380
2006-08-16 21:21:58.052 AO: Audio Stretch Factor: 1
2006-08-16 21:21:58.052 Audio Codec Used: not set
2006-08-16 21:21:58.053 AO: Ending reconfigure
2006-08-16 21:21:58.054 AFD: Audio stream type changed.
2006-08-16 21:21:58.054 AO: kickoffOutputAudioLoop: pid = 24568
2006-08-16 21:21:58.054 AO: OutputAudioLoop: Play Event
2006-08-16 21:21:58.090 NVP: prebuffering pause
2006-08-16 21:21:58.090 AO: Pause 1
2006-08-16 21:21:58.091 AO: OutputAudioLoop: audio paused
2006-08-16 21:21:58.123 AO: Pause 0
2006-08-16 21:21:58.123 AO: OutputAudioLoop: Play Event
2006-08-16 21:22:04.896 TV: Attempting to change from WatchingPreRecorded to 
None
2006-08-16 21:22:04.948 AO: Killing AudioOutputDSP
2006-08-16 21:22:04.954 AO: OutputAudioLoop: Stop Event
2006-08-16 21:22:04.954 AO: kickoffOutputAudioLoop exiting
2006-08-16 21:22:05.038 TV: Changing from WatchingPreRecorded to None
0: start_time: 0.027 duration: 500.076
1: start_time: 0.029 duration: 499.980
stream: start_time: 0.300 duration: 5556.400 bitrate=2565 kb/s
2006-08-16 21:22:05.270 AFD: Opened codec 0x81f9e30, id(MPEG2VIDEO) 
type(Video)
2006-08-16 21:22:05.271 AVFD: codec MP2 has 2 channels
2006-08-16 21:22:05.271 AFD: Opened codec 0x835d060, id(MP2) type(Audio)
2006-08-16 21:22:05.271 AFD: Audio Track #1 is A/V stream #1 and has 2 
channels in the Unknown language(0).
2006-08-16 21:22:05.271 AFD: Selected track 1: Unknown MP2 2ch (A/V Stream 
#1)
2006-08-16 21:22:05.271 AFD: Initializing audio parms from audio track #1
2006-08-16 21:22:05.271 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