/**
 * FreeRDP: A Remote Desktop Protocol client.
 * Video Redirection Virtual Channel - Audio Device Manager
 *
 * Copyright 2010-2011 Vic Lee
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <freerdp/utils/memory.h>
#include <freerdp/utils/load_plugin.h>

#include "tsmf_audio.h"

static ITSMFAudioDevice* tsmf_load_audio_device_by_name(const char* name, const char* device)
{
	ITSMFAudioDevice* audio;
	TSMF_AUDIO_DEVICE_ENTRY entry;
	char* fullname;

	if (strrchr(name, '.') != NULL)
		entry = (TSMF_AUDIO_DEVICE_ENTRY) freerdp_load_plugin(name, TSMF_AUDIO_DEVICE_EXPORT_FUNC_NAME);
	else
	{
		fullname = xzalloc(strlen(name) + 6);
		strcpy(fullname, "tsmf_");
		strcat(fullname, name);
		entry = (TSMF_AUDIO_DEVICE_ENTRY) freerdp_load_plugin(fullname, TSMF_AUDIO_DEVICE_EXPORT_FUNC_NAME);
		xfree(fullname);
	}
	if (entry == NULL)
	{
		return NULL;
	}

	audio = entry();
	if (audio == NULL)
	{
		DEBUG_WARN("failed to call export function in %s", name);
		return NULL;
	}
	if (!audio->Open(audio, device))
	{
		audio->Free(audio);
		audio = NULL;
	}
	return audio;
}

ITSMFAudioDevice* tsmf_load_audio_device(const char* name, const char* device)
{
	ITSMFAudioDevice* audio;

	if (name)
	{
		audio = tsmf_load_audio_device_by_name(name, device);
	}
	else
	{
		audio = tsmf_load_audio_device_by_name("pulse", device);
		if (!audio)
			audio = tsmf_load_audio_device_by_name("alsa", device);
	}

	return audio;
}