Johannes Lorenz wrote: > On Tuesday 27 September 2016 08:28:42 Clemens Ladisch wrote: >> And you must set a buffer size that is supported by the device. > > Thanks, I just found snd_pcm_hw_params_set_buffer_size_near(). However, for > our app, it would be nice to get the preferred buffer size before any PCM > handle and params are created. Is this possible?
You can get the allowed range of buffer sizes with snd_pcm_hw_params_get_buffer_size_min/max, but these values can depend on any other hardware parameters, so you cannot get them without the PCM handle, and they might be further restricted with any snd_pcm_hw_params_set_xxx call. There is no preferred size; what size your application prefers depends on its latency requirements. Regards, Clemens ------------------------------------------------------------------------------ _______________________________________________ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
