int snd_open_stream()
{
int samplerate;
char info_buf[256];
PaDeviceIndex pa_dev_id;
PaStreamParameters pa_params;
PaError pa_err;
const PaDeviceInfo *pa_dev_info;
if(cfg.audio.dev_count == 0)
{
print_info("ERROR: no sound device with input channels found", 1);
return 1;
}
buf_size = PA_FRAMES * 2;
framepacket_size = PA_FRAMES * cfg.audio.channel;
pa_pcm_buf = (short*)malloc(buf_size * sizeof(short));
encode_buf = (char*)malloc(buf_size * sizeof(char));
rb_init(&rec_rb, 16 * buf_size * sizeof(short));
rb_init(&stream_rb, 16 * buf_size * sizeof(short));
samplerate = cfg.audio.samplerate;
pa_dev_id = cfg.audio.pcm_list[cfg.audio.dev_num]->dev_id;
pa_dev_info = Pa_GetDeviceInfo(pa_dev_id);
if(pa_dev_info == NULL)
{
snprintf(info_buf, 127, "Error getting device Info (%d)", pa_dev_id);
print_info(info_buf, 1);
return 1;
}
pa_params.device = pa_dev_id;
pa_params.channelCount = cfg.audio.channel;
pa_params.sampleFormat = paInt16;
pa_params.suggestedLatency = pa_dev_info->defaultHighInputLatency;
pa_params.hostApiSpecificStreamInfo = NULL;
pa_err = Pa_IsFormatSupported(&pa_params, NULL, samplerate);
if(pa_err != paFormatIsSupported)
{
if(pa_err == paInvalidSampleRate)
{
snprintf(info_buf, sizeof(info_buf),
"Samplerate not supported: %dHz\n"
"Using default samplerate: %dHz",
samplerate, (int)pa_dev_info->defaultSampleRate);
print_info(info_buf, 1);
if(Pa_IsFormatSupported(&pa_params, NULL,
pa_dev_info->defaultSampleRate) != paFormatIsSupported)
{
print_info("FAILED", 1);
return 1;
}
else
{
samplerate = (int)pa_dev_info->defaultSampleRate;
cfg.audio.samplerate = samplerate;
cfg.rec.samplerate = samplerate;
update_samplerates();
}
}
else
{
snprintf(info_buf, sizeof(info_buf), "PA: Format not supported: %s\n",
Pa_GetErrorText(pa_err));
print_info(info_buf, 1);
return 1;
}
}
pa_err = Pa_OpenStream(&stream, &pa_params, NULL,
samplerate, PA_FRAMES,
paNoFlag, snd_callback, NULL);
if(pa_err != paNoError)
{
printf("error opening sound device: \n%s\n", Pa_GetErrorText(pa_err));
return 1;
}
Pa_StartStream(stream);
return 0;
}
int snd_open_stream(void)
{
int samplerate;
char info_buf[256];
PaDeviceIndex pa_dev_id;
PaStreamParameters pa_params;
PaError pa_err;
const PaDeviceInfo *pa_dev_info;
if(cfg.audio.dev_count == 0)
{
print_info(_("ERROR: no sound device with input channels found"), 1);
return 1;
}
pa_frames = (cfg.audio.buffer_ms/1000.0)*cfg.audio.samplerate;
snd_reset_samplerate_conv(SND_STREAM);
snd_reset_samplerate_conv(SND_REC);
framepacket_size = pa_frames * cfg.audio.channel;
pa_pcm_buf = (short*)malloc(16 * framepacket_size * sizeof(short));
encode_buf = (char*)malloc(16 * framepacket_size * sizeof(char));
rb_init(&rec_rb, 16 * framepacket_size * sizeof(short));
rb_init(&stream_rb, 16 * framepacket_size * sizeof(short));
samplerate = cfg.audio.samplerate;
pa_dev_id = cfg.audio.pcm_list[cfg.audio.dev_num]->dev_id;
pa_dev_info = Pa_GetDeviceInfo(pa_dev_id);
if(pa_dev_info == NULL)
{
snprintf(info_buf, 127, _("Error getting device Info (%d)"), pa_dev_id);
print_info(info_buf, 1);
return 1;
}
pa_params.device = pa_dev_id;
pa_params.channelCount = cfg.audio.channel;
pa_params.sampleFormat = paInt16;
pa_params.suggestedLatency = pa_dev_info->defaultHighInputLatency;
pa_params.hostApiSpecificStreamInfo = NULL;
pa_err = Pa_IsFormatSupported(&pa_params, NULL, samplerate);
if(pa_err != paFormatIsSupported)
{
if(pa_err == paInvalidSampleRate)
{
snprintf(info_buf, sizeof(info_buf),
_("Samplerate not supported: %dHz\n"
"Using default samplerate: %dHz"),
samplerate, (int)pa_dev_info->defaultSampleRate);
print_info(info_buf, 1);
if(Pa_IsFormatSupported(&pa_params, NULL,
pa_dev_info->defaultSampleRate) != paFormatIsSupported)
{
print_info(_("PA: Format not supported"), 1);
return 1;
}
else
{
samplerate = (int)pa_dev_info->defaultSampleRate;
cfg.audio.samplerate = samplerate;
update_samplerates();
}
}
else
{
snprintf(info_buf, sizeof(info_buf), _("PA: Format not supported: %s\n"),
Pa_GetErrorText(pa_err));
print_info(info_buf, 1);
return 1;
}
}
pa_err = Pa_OpenStream(&stream, &pa_params, NULL,
samplerate, pa_frames,
paNoFlag, snd_callback, NULL);
if(pa_err != paNoError)
{
printf(_("error opening sound device: \n%s\n"), Pa_GetErrorText(pa_err));
return 1;
}
stream_buf = new char[16 * pa_frames*2 * sizeof(short)];
record_buf = new char[16 * pa_frames*2 * sizeof(short)];
dsp = new DSPEffects(pa_frames, cfg.audio.channel, samplerate);
Pa_StartStream(stream);
return 0;
}
