[mythtv-commits] Ticket #4002: Mythtv audio and Dvico FusionHDTV5 RT Gold

[MythTV]

#4002: Mythtv audio and Dvico FusionHDTV5 RT Gold
-----------------------+----------------------------------------------------
 Reporter:  anonymous  |       Owner:  ijr    
     Type:  defect     |      Status:  new    
 Priority:  minor      |   Milestone:  unknown
Component:  mythtv     |     Version:  0.20.2 
 Severity:  medium     |     Mlocked:  0      
-----------------------+----------------------------------------------------
 Capture Card: Dvico FusionHDTV5 RT Gold[[BR]]
 Motherboard: Abit AB9 Quad GT[[BR]]
 CPU: Intel 2.4GHz Quad-core[[BR]]
 Distribution: Ubunutu 7.04 64-bit[[BR]]
 Audio device: /dev/dsp[[BR]]
 Video device: /dev/video0[[BR]]
 Using as an anolog device.[[BR]]
 mythtv version: 0.20.2 (proposed ubuntu 7.04 package)[[BR]]

 Description:
 I have the audio from the capture card plugged in to the cd-in on the
 motherboard.  Using TvTime or XawTV, I have no problems with audio and
 video.  Using mythtv, I have two situations when changing options on
 alsamixer:
 1. Set cd-in mute and capture I get no audio using mythtv.  Recorded shows
 have no audio.
 2. Set cd-in unmute and capture, I get no audio using mythtv until I
 change the channel.  After changing the channel, the audio is 7-8 seconds
 out of sync.  Trying to sync using 'm' key will not work.  Additionally,
 video becomes laggy on my quad-core/8GB RAM/Raptor HD computer.
 Eventually, mythtv reports an error with the video.

 Best Guess: the audio is not being caputured properly by mythtv during
 situation #1.  This is the correct configuration for alsa as described by
 the mythtv help on audio found here [http://www.mythtv.org/docs/mythtv-
 HOWTO-7.html].

 Some relevant output:
 {{{
 amixer
 Simple mixer control 'Headphone',0
   Capabilities: pswitch
   Playback channels: Front Left - Front Right
   Mono:
   Front Left: Playback [on]
   Front Right: Playback [on]
 Simple mixer control 'PCM',0
   Capabilities: pvolume
   Playback channels: Front Left - Front Right
   Limits: Playback 0 - 255
   Mono:
   Front Left: Playback 0 [0%] [-51.00dB]
   Front Right: Playback 0 [0%] [-51.00dB]
 Simple mixer control 'Front',0
   Capabilities: pvolume pswitch
   Playback channels: Front Left - Front Right
   Limits: Playback 0 - 31
   Mono:
   Front Left: Playback 22 [71%] [-13.50dB] [on]
   Front Right: Playback 22 [71%] [-13.50dB] [on]
 Simple mixer control 'Front Mic',0
   Capabilities: pvolume pswitch
   Playback channels: Front Left - Front Right
   Limits: Playback 0 - 31
   Mono:
   Front Left: Playback 0 [0%] [-34.50dB] [off]
   Front Right: Playback 0 [0%] [-34.50dB] [off]
 Simple mixer control 'Surround',0
   Capabilities: pvolume pswitch
   Playback channels: Front Left - Front Right
   Limits: Playback 0 - 31
   Mono:
   Front Left: Playback 17 [55%] [-21.00dB] [off]
   Front Right: Playback 17 [55%] [-21.00dB] [off]
 Simple mixer control 'Center',0
   Capabilities: pvolume pvolume-joined pswitch pswitch-joined
   Playback channels: Mono
   Limits: Playback 0 - 31
   Mono: Playback 12 [39%] [-28.50dB] [on]
 Simple mixer control 'LFE',0
   Capabilities: pvolume pvolume-joined pswitch pswitch-joined
   Playback channels: Mono
   Limits: Playback 0 - 31
   Mono: Playback 11 [35%] [-30.00dB] [on]
 Simple mixer control 'Side',0
   Capabilities: pvolume pswitch
   Playback channels: Front Left - Front Right
   Limits: Playback 0 - 31
   Mono:
   Front Left: Playback 11 [35%] [-30.00dB] [on]
   Front Right: Playback 11 [35%] [-30.00dB] [on]
 Simple mixer control 'Line',0
   Capabilities: pvolume pswitch
   Playback channels: Front Left - Front Right
   Limits: Playback 0 - 31
   Mono:
   Front Left: Playback 0 [0%] [-34.50dB] [off]
   Front Right: Playback 0 [0%] [-34.50dB] [off]
 Simple mixer control 'CD',0
   Capabilities: pvolume pswitch
   Playback channels: Front Left - Front Right
   Limits: Playback 0 - 31
   Mono:
   Front Left: Playback 23 [74%] [0.00dB] [off]
   Front Right: Playback 23 [74%] [0.00dB] [off]
 Simple mixer control 'Mic',0
   Capabilities: pvolume pswitch
   Playback channels: Front Left - Front Right
   Limits: Playback 0 - 31
   Mono:
   Front Left: Playback 0 [0%] [-34.50dB] [off]
   Front Right: Playback 0 [0%] [-34.50dB] [off]
 Simple mixer control 'IEC958',0
   Capabilities: pswitch pswitch-joined cswitch cswitch-joined
   Playback channels: Mono
   Capture channels: Mono
   Mono: Playback [off] Capture [off]
 Simple mixer control 'Capture',0
   Capabilities: cvolume cswitch
   Capture channels: Front Left - Front Right
   Limits: Capture 0 - 31
   Front Left: Capture 24 [77%] [19.50dB] [on]
   Front Right: Capture 24 [77%] [19.50dB] [on]
 Simple mixer control 'Capture',1
   Capabilities: cvolume cswitch
   Capture channels: Front Left - Front Right
   Limits: Capture 0 - 31
   Front Left: Capture 24 [77%] [19.50dB] [on]
   Front Right: Capture 24 [77%] [19.50dB] [on]
 Simple mixer control 'Input Source',0
   Capabilities: enum
   Items: 'Mic' 'Front Mic' 'Line' 'CD'
   Item0: 'CD'
 Simple mixer control 'Input Source',1
   Capabilities: enum
   Items: 'Mic' 'Front Mic' 'Line' 'CD'
   Item0: 'CD'
 }}}

-- 
Ticket URL: <http://svn.mythtv.org/trac/ticket/4002>
MythTV <http://svn.mythtv.org/trac>
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