C++ (Cpp) tsmf_alsa_open_device Examples

Example #1

File: tsmf_alsa.c Project: BUGgs/FreeRDP

static BOOL tsmf_alsa_open(ITSMFAudioDevice *audio, const char *device)
{
	TSMFAlsaAudioDevice *alsa = (TSMFAlsaAudioDevice *) audio;
	if(!device)
	{
		strncpy(alsa->device, "default", sizeof(alsa->device));
	}
	else
	{
		strncpy(alsa->device, device, sizeof(alsa->device));
	}
	return tsmf_alsa_open_device(alsa);
}

Example #2

File: tsmf_alsa.c Project: Cyclic/FreeRDP

static boolean tsmf_alsa_open(ITSMFAudioDevice* audio, const char* device)
{
	TSMFALSAAudioDevice* alsa = (TSMFALSAAudioDevice*) audio;

	if (!device)
	{
		if (!alsa->device[0])
			strcpy(alsa->device, "default");
	}
	else
	{
		strcpy(alsa->device, device);
	}

	return tsmf_alsa_open_device(alsa);
}

Example #3

File: tsmf_alsa.c Project: BUGgs/FreeRDP

static BOOL tsmf_alsa_play(ITSMFAudioDevice *audio, BYTE *data, UINT32 data_size)
{
	int len;
	int error;
	int frames;
	BYTE *end;
	BYTE *src;
	BYTE *pindex;
	int rbytes_per_frame;
	int sbytes_per_frame;
	TSMFAlsaAudioDevice *alsa = (TSMFAlsaAudioDevice *) audio;
	DEBUG_TSMF("data_size %d", data_size);
	if(alsa->out_handle)
	{
		sbytes_per_frame = alsa->source_channels * alsa->bytes_per_sample;
		rbytes_per_frame = alsa->actual_channels * alsa->bytes_per_sample;
		if((alsa->source_rate == alsa->actual_rate) &&
				(alsa->source_channels == alsa->actual_channels))
		{
			src = data;
		}
		else
		{
			alsa->dsp_context->resample(alsa->dsp_context, data, alsa->bytes_per_sample,
										alsa->source_channels, alsa->source_rate, data_size / sbytes_per_frame,
										alsa->actual_channels, alsa->actual_rate);
			frames = alsa->dsp_context->resampled_frames;
			DEBUG_TSMF("resampled %d frames at %d to %d frames at %d",
					   data_size / sbytes_per_frame, alsa->source_rate, frames, alsa->actual_rate);
			data_size = frames * rbytes_per_frame;
			src = alsa->dsp_context->resampled_buffer;
		}
		pindex = src;
		end = pindex + data_size;
		while(pindex < end)
		{
			len = end - pindex;
			frames = len / rbytes_per_frame;
			error = snd_pcm_writei(alsa->out_handle, pindex, frames);
			if(error == -EPIPE)
			{
				snd_pcm_recover(alsa->out_handle, error, 0);
				error = 0;
			}
			else if(error < 0)
			{
				DEBUG_TSMF("error len %d", error);
				snd_pcm_close(alsa->out_handle);
				alsa->out_handle = 0;
				tsmf_alsa_open_device(alsa);
				break;
			}
			DEBUG_TSMF("%d frames played.", error);
			if(error == 0)
				break;
			pindex += error * rbytes_per_frame;
		}
	}
	free(data);
	return TRUE;
}