void
asource_deinit(void *arg) {
#ifdef WIN32
ga_wasapi_close(&audioparam);
#else
ga_alsa_close(audioparam.handle, audioparam.sndlog);
#endif
return;
}
static int
asource_deinit(void *arg) {
#ifdef WIN32
ga_wasapi_close(&audioparam);
#else
ga_alsa_close(audioparam.handle, audioparam.sndlog);
#endif
asource_initialized = 0;
return 0;
}
int
asource_init(void *arg) {
int delay = 0;
struct RTSPConf *rtspconf = rtspconf_global();
if(initialized)
return 0;
//
if((delay = ga_conf_readint("audio-init-delay")) > 0) {
usleep(delay*1000);
}
//
audioparam.channels = rtspconf->audio_channels;
audioparam.samplerate = rtspconf->audio_samplerate;
if(rtspconf->audio_device_format == AV_SAMPLE_FMT_S16) {
#ifdef WIN32
#else
audioparam.format = SND_PCM_FORMAT_S16_LE;
#endif
audioparam.bits_per_sample = 16;
} else {
ga_error("audio source: unsupported audio format (%d).\n",
rtspconf->audio_device_format);
return -1;
}
if(rtspconf->audio_device_channel_layout != AV_CH_LAYOUT_STEREO) {
ga_error("audio source: unsupported channel layout (%llu).\n",
rtspconf->audio_device_channel_layout);
return -1;
}
#ifdef WIN32
if(ga_wasapi_init(&audioparam) < 0) {
ga_error("WASAPI: initialization failed.\n");
return -1;
}
#else
if((audioparam.handle = ga_alsa_init(&audioparam.sndlog)) == NULL) {
ga_error("ALSA: initialization failed.\n");
return -1;
}
if(ga_alsa_set_param(&audioparam) < 0) {
ga_alsa_close(audioparam.handle, audioparam.sndlog);
ga_error("ALSA: cannot set parameters\n");
return -1;
}
#endif
if(audio_source_setup(audioparam.chunk_size, audioparam.samplerate, audioparam.bits_per_sample, audioparam.channels) < 0) {
ga_error("audio source: setup failed.\n");
#ifdef WIN32
ga_wasapi_close(&audioparam);
#else
ga_alsa_close(audioparam.handle, audioparam.sndlog);
#endif
return -1;
}
initialized = true;
ga_error("audio source: setup chunk=%d, samplerate=%d, bps=%d, channels=%d\n",
audioparam.chunk_size,
audioparam.samplerate,
audioparam.bits_per_sample,
audioparam.channels);
return 0;
}