Re: [alsa-devel] Alsa OSS - who is maintaining it?
At Wed, 04 Apr 2007 19:18:48 +0200, Johannes Berg wrote:
On Wed, 2007-04-04 at 19:10 +0200, Takashi Iwai wrote:
To make sure, check /proc/asound/card0/pcm0p/sub0/hw_params has no "OSS" entry when you're playing via aoss. If a line like "OSS Format" appears there, it is still kernel oss-emulation.
OSS Format is not in there.
Fine. Then it smells more.
Johannes, any known / possible problem with OSS emulation using aoa driver (especially regarding endianness)?
snd-pcm-oss you mean?
Both snd-pcm-oss and aoss wrapper seem not working for Stefan's machine. Maybe a problem specific to a certain model?
Takashi
No, it's working fine, the contents of that file is (mplayer -ao oss):
access: RW_INTERLEAVED format: S16_BE subformat: STD channels: 2 rate: 44100 (44100/1) period_size: 1024 buffer_size: 16384 tick_time: 10000 OSS format: S16_BE OSS channels: 2 OSS rate: 44100 OSS period bytes: 4096 OSS periods: 16 OSS period frames: 1024
while with alsa it is (rhythmbox/gstreamer):
access: MMAP_INTERLEAVED format: S16_BE subformat: STD channels: 2 rate: 44100 (44100/1) period_size: 1024 buffer_size: 8192 tick_time: 10000
and with aoss (aoa mplayer -ao oss, snd-pcm-oss not loaded): access: MMAP_INTERLEAVED format: S16_BE subformat: STD channels: 2 rate: 44100 (44100/1) period_size: 1024 buffer_size: 8192 tick_time: 10000
Don't see a problem at all, working well for me.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512
Takashi Iwai wrote:
Both snd-pcm-oss and aoss wrapper seem not working for Stefan's machine. Maybe a problem specific to a certain model?
For both (native (aplay) and sox (play))
access: MMAP_INTERLEAVED format: S16_BE subformat: STD channels: 2 rate: 48000 (48000/1) period_size: 1024 buffer_size: 16384 tick_time: 4000
What /proc/asound/cards contain?
0 [SoundByLayout ]: AppleOnbdAudio - SoundByLayout SoundByLayout
In lsmod powermac is not loaded. The 'strange' thing I found, is that even without snd-pcm-oss or aoss I get garbage. At that moment I wonder what emulation layer is used.
Stefan
participants (2)
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Stefan de Konink
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Takashi Iwai