[mythtv-commits] Ticket #9081: Audio choppy when bitrate not converted
MythTV
mythtv at cvs.mythtv.org
Sun Oct 10 09:15:29 UTC 2010
#9081: Audio choppy when bitrate not converted
-----------------------------------+----------------------------------------
Reporter: paul<at>planar.id.au | Owner: jyavenard
Type: defect | Status: closed
Priority: minor | Milestone: unknown
Component: MythTV - Audio Output | Version: Unspecified
Severity: medium | Resolution: Invalid
Keywords: | Ticket locked: 0
-----------------------------------+----------------------------------------
Comment (by paul<at>planar.id.au):
Sorry, I left that part out of the log. When I set it to play using
default, the log looks as follows:
2010-10-10 20:07:41.600 Launching: ps -ae | grep pulseaudio > /dev/null
2010-10-10 20:07:41.616 PID 18483: launched
2010-10-10 20:07:41.728 PID 18483: exited: status=256, result=1
2010-10-10 20:07:41.775 AO: Resampling from 44 kHz to 48 kHz with quality
high
2010-10-10 20:07:41.776 AO: Opening audio device 'default:CARD=default' ch
2(2) sr 48000 sf signed 16 bit reenc 0
2010-10-10 20:07:41.777 Opening ALSA audio device 'default:CARD=default'.
2010-10-10 20:07:41.821 avfdecoder.o: seek time 17
2010-10-10 20:07:42.047 Error seeking
2010-10-10 20:07:42.366 Read frame failed
The /proc dump says:
Burr-Brown from TI USB Audio DAC at usb-0000:00:1d.1-2,
full s : USB Audio
Playback:
Status: Running
Interface = 1
Altset = 1
URBs = 3 [ 7 7 8 ]
Packet Size = 192
Momentary freq = 48000 Hz (0x30.0000)
Interface 1
Altset 1
Format: S16_LE
Channels: 2
Endpoint: 2 OUT (ADAPTIVE)
Rates: 32000, 44100, 48000
Interface 1
Altset 2
Format: S16_LE
Channels: 1
Endpoint: 2 OUT (ADAPTIVE)
Rates: 32000, 44100, 48000
So I believe myth is resampling it, but I'm not clear why. It seems to me
that myth probably believes the card cannot support 44100, although VLC
seems OK with it. When I force it to 44.1 by using hw:3,0, it does sound
funny, so perhaps myth is correct. But I'm still at a loss as to why vlc
works fine.
--
Ticket URL: <http://svn.mythtv.org/trac/ticket/9081#comment:2>
MythTV <http://www.mythtv.org/>
MythTV Media Center
More information about the mythtv-commits
mailing list