audio_output_alsa.c

audio_output_apply_hwparams audio_output_close audio_output_open audio_output_play audio_output_volume_adjust audio_output_volume_down audio_output_volume_open audio_output_volume_up channels devhnd elem mixhnd srate

static void audio_output_volume_open ( void   )  [static] Open the ALSA mixer device, making it possible to adjust the volume. Definition at line 109 of file audio_output_alsa.c. { snd_mixer_selem_id_t *mixer; /* Open mixer device */ if (snd_mixer_open(&mixhnd, 0) != 0) return; if (snd_mixer_attach(mixhnd, config_getopt("audio.output.alsa.device")) != 0) goto bad; if (snd_mixer_selem_register(mixhnd, NULL, NULL) < 0) goto bad; if (snd_mixer_load(mixhnd) < 0) goto bad; /* Obtain mixer element */ snd_mixer_selem_id_alloca(&mixer); snd_mixer_selem_id_set_name(mixer, config_getopt("audio.output.alsa.mixer")); elem = snd_mixer_find_selem(mixhnd, mixer); if (elem != NULL) return; bad: snd_mixer_close(mixhnd); mixhnd = NULL; } Here is the call graph for this function: Here is the caller graph for this function: