Hello devel,
I am trying to implement s/w params for ALSA playback device such that there is SILENCE playback for UNDERRUN (-32). To achieve above i used below s/w params API's. But still i observe UNDERRUN in my AUDIO Playback. Please correct me if i am mising somenting. {When i do get boundry, i get some weird value 1572864000. Thus i tried to use alsa buffer size for threshold}
/*************************************************************************************/
if (snd_pcm_sw_params_get_boundary (alsaParams->p_swparams, &boundary) < 0) { printf ("Could not gete snd_pcm_sw_params_get_boundary"); return NULL; }
// threshold = boundary; threshold = alsaParams->periodsize * alsaParams->no_of_periods;
if (snd_pcm_sw_params_set_stop_threshold (alsaParams->pcm_handle, alsaParams->p_swparams, threshold) < 0) { printf("Could not gete snd_pcm_sw_params_get_boundary"); return NULL; }
if (snd_pcm_sw_params_set_silence_threshold (alsaParams->pcm_handle, alsaParams->p_swparams, 0) < 0 || snd_pcm_sw_params_set_silence_size (alsaParams->pcm_handle, alsaParams->p_swparams, boundary) < 0) /* play silence on XRUN */ { printf("Could not set silence params"); return NULL; } /*************************************************************************************/
Thanks in advance !!
Regards,