Re: Firefox + alsa + oss problem

[Ryo ONODERA <ryo_on%yk.rim.or.jp@localhost>]

Hi,

With my .asoundrc, all tests in test_audio of cubeb library ran without
error.


From: Ryo ONODERA <ryo_on%yk.rim.or.jp@localhost>, Date: Sat, 11 Feb 2017 00:53:22 +0900 (JST)

> Hi,
> 
> From: Izumi Tsutsui <tsutsui%ceres.dti.ne.jp@localhost>, Date: Sat, 11 Feb 2017 00:27:02 +0900
> 
>> I wrote:
>> (in http://mail-index.netbsd.org/pkgsrc-users/2017/01/08/msg024230.html )
>> 
>>> > Sound (e.g, youtube videos) doesn't work for me either anymore with the
>>> > new default package options "alsa dbus":
>>> > 
>>> >  alsa_stream_destroy: pthread_cond_destroy failed: Invalid argument
>>> > 
>>> > I also tried with pulseaudio and that didn't work either, but I didn't
>>> > see any error messages.
>>> 
>>> pkgsrc firefox (default ALSA option) + alsa-plugins-oss doesn't work here,
>>> but pkgsrc firefox (default ALSA option) + alsa-plugins-pulse works for me
>> 
>> I'd like to share information I investigated today.
>> 
>> - firefox uses "FLOAT32NE" (native endian) for sound format
>>  - ryoon@ says firefox config to use int16_t format doesn't work well
>> 
>> - alsa-plugins-oss doesn't support FLOAT32 format
>>  - I'm not sure if NetBSD's oss itself supports float format though
>> 
>> - pulseaudio seems to support FLOAT32 format so alsa-plugins-pulse works
>>   with firefox + alsa
>> 
>> - cubeb_oss.c (enabled by "oss" option in pkgsrc/www/firefox)
>>   converts FLOAT32 format to S16 format so it also works
>> 
>>> The error message from firefox
>>> "alsa_stream_destroy: pthread_cond_destroy failed: Invalid argument"
>>> seems to come from pkgsrc patch:
>> 
>> This is fixed by martin@
>> http://mail-index.netbsd.org/pkgsrc-changes/2017/02/06/msg152569.html
>> and it was actually trigged by failure of snd_pcm_set_params() with
>> SND_PCM_FORMAT_FLOAT_LE.
>> 
>> One dumb idea is to put FLOAT_NE -> S16_NE conversion into alsa-plugins-oss,
>> but I'm not sure it's likely or not.
>> (pulseaudio implementation for oss output might help?)
> 
> alsa has a conversion mechanism and I can play S24_LE wav file with aplay
> command.
> 
> My .asoundrc is here.
> 
> $ cat ~/.asoundrc
> pcm.oss {
>         type oss
>         device /dev/audio
> }
> 
> pcm.!default {
>         type plug
>         slave {
>                 pcm oss
>                 format S16_LE
>         }
> }
> 
> ctl.!default {
>         type oss
>         device /dev/mixer
> }
> 
> However this .asoundrc triggers 'assert(delay >= 0);' in cubeb_alsa.c.
> and it causes crash of firefox.
> 
>> ---
>> Izumi Tsutsui 
> 
> --
> Ryo ONODERA // ryo_on%yk.rim.or.jp@localhost
> PGP fingerprint = 82A2 DC91 76E0 A10A 8ABB  FD1B F404 27FA C7D1 15F3

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Ryo ONODERA // ryo_on%yk.rim.or.jp@localhost
PGP fingerprint = 82A2 DC91 76E0 A10A 8ABB  FD1B F404 27FA C7D1 15F3