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channels/drdynvc/tsmf/tsmf_decoder.c

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/**

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 * FreeRDP: A Remote Desktop Protocol client.

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 * Video Redirection Virtual Channel - Decoder

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 *

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 * Copyright 2010-2011 Vic Lee

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 *

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 * Licensed under the Apache License, Version 2.0 (the "License");

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 * you may not use this file except in compliance with the License.

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 * You may obtain a copy of the License at

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 *

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 *     http://www.apache.org/licenses/LICENSE-2.0

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 *

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 * Unless required by applicable law or agreed to in writing, software

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 * distributed under the License is distributed on an "AS IS" BASIS,

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 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

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 * See the License for the specific language governing permissions and

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 * limitations under the License.

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 */

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#include <stdio.h>

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#include <stdlib.h>

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#include <string.h>

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#include <freerdp/utils/memory.h>

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#include <freerdp/utils/load_plugin.h>

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#include "drdynvc_types.h"

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#include "tsmf_types.h"

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#include "tsmf_constants.h"

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#include "tsmf_decoder.h"

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static ITSMFDecoder* tsmf_load_decoder_by_name(const char* name, TS_AM_MEDIA_TYPE* media_type)

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{

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        ITSMFDecoder* decoder;

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        TSMF_DECODER_ENTRY entry;

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        char* fullname;

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        if (strrchr(name, '.') != NULL)

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                entry = (TSMF_DECODER_ENTRY) freerdp_load_plugin(name, TSMF_DECODER_EXPORT_FUNC_NAME);

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        else

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        {

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                fullname = xzalloc(strlen(name) + 6);

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                strcpy(fullname, "tsmf_");

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                strcat(fullname, name);

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                entry = (TSMF_DECODER_ENTRY) freerdp_load_plugin(fullname, TSMF_DECODER_EXPORT_FUNC_NAME);

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                xfree(fullname);

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        }

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        if (entry == NULL)

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        {

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                return NULL;

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        }

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        decoder = entry();

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        if (decoder == NULL)

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        {

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

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                return NULL;

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        }

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

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        {

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                decoder->Free(decoder);

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                decoder = NULL;

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        }

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        return decoder;

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}

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

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{

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        ITSMFDecoder* decoder;

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        if (name)

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        {

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                decoder = tsmf_load_decoder_by_name(name, media_type);

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        }

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        else

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        {

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                decoder = tsmf_load_decoder_by_name("ffmpeg", media_type);

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        }

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        return decoder;

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}

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