/**

 * FreeRDP: A Remote Desktop Protocol Implementation

 * Video Redirection Virtual Channel - Decoder

 *

 * 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.

 */

#ifdef HAVE_CONFIG_H

#include "config.h"

#endif

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <freerdp/addin.h>

#include <freerdp/client/channels.h>

#include "tsmf_types.h"

#include "tsmf_constants.h"

#include "tsmf_decoder.h"

static ITSMFDecoder* tsmf_load_decoder_by_name(const char* name)

{

	ITSMFDecoder* decoder;

	TSMF_DECODER_ENTRY entry;

	entry = (TSMF_DECODER_ENTRY)(void*)freerdp_load_channel_addin_entry("tsmf", name, "decoder", 0);

	if (!entry)

		return NULL;

	decoder = entry();

	if (!decoder)

	{

		WLog_ERR(TAG, "failed to call export function in %s", name);

		return NULL;

	}

	return decoder;

}

static BOOL tsmf_decoder_set_format(ITSMFDecoder* decoder, TS_AM_MEDIA_TYPE* media_type)

{

	if (decoder->SetFormat(decoder, media_type))

		return TRUE;

	else

		return FALSE;

}

ITSMFDecoder* tsmf_load_decoder(const char* name, TS_AM_MEDIA_TYPE* media_type)

{

	ITSMFDecoder* decoder = NULL;

	if (name)

	{

		decoder = tsmf_load_decoder_by_name(name);

	}

#if defined(WITH_GSTREAMER_1_0) || defined(WITH_GSTREAMER_0_10)

	if (!decoder)

		decoder = tsmf_load_decoder_by_name("gstreamer");

#endif

#if defined(WITH_FFMPEG)

	if (!decoder)

		decoder = tsmf_load_decoder_by_name("ffmpeg");

#endif

	if (decoder)

	{

		if (!tsmf_decoder_set_format(decoder, media_type))

		{

			decoder->Free(decoder);

			decoder = NULL;

		}

	}

	return decoder;

}

BOOL tsmf_check_decoder_available(const char* name)

{

	ITSMFDecoder* decoder = NULL;

	BOOL retValue = FALSE;

	if (name)

	{

		decoder = tsmf_load_decoder_by_name(name);

	}

#if defined(WITH_GSTREAMER_1_0) || defined(WITH_GSTREAMER_0_10)

	if (!decoder)

		decoder = tsmf_load_decoder_by_name("gstreamer");

#endif

#if defined(WITH_FFMPEG)

	if (!decoder)

		decoder = tsmf_load_decoder_by_name("ffmpeg");

#endif

	if (decoder)

	{

		decoder->Free(decoder);

		decoder = NULL;

		retValue = TRUE;

	}

	return retValue;

}