Re: [Alsa-user] snd_pcm_hw_params_set_buffer_size problem

[Clemens L. <cla...@go...>]

Jeremy Ardley wrote:
> I have some code that works on my dev machine but breaks on my target
> machine. The essential differences are different libasound versions
> and different audio devices.
>
>   if ( ( err = snd_pcm_hw_params_set_buffer_size ( playback_handle, hw_params, bufout ) ) < 0 )
>     {
>       ERR ( "cda_AlsaManager::_setupPlayback cannot set buffer size (%s)\n",
>             snd_strerror ( err ) );
>     }

Do you actually require the buffer size to have this specific value?

If not, use snd_pcm_hw_params_set_buffer_size_near().

(They are called "hardware parameters" because they are dependent on the
hardware.)

> setting buffer size  882

20 ms is quite low, but should be possible unless you have set other
parameters to values that prevent this.


Regards,
Clemens