FreeRDP/channels/drdynvc/tsmf/tsmf_decoder.c
2011-09-20 01:58:27 +08:00

82 lines
2.0 KiB
C

/**
* FreeRDP: A Remote Desktop Protocol client.
* 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.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <freerdp/utils/memory.h>
#include <freerdp/utils/load_plugin.h>
#include "drdynvc_types.h"
#include "tsmf_types.h"
#include "tsmf_constants.h"
#include "tsmf_decoder.h"
static ITSMFDecoder* tsmf_load_decoder_by_name(const char* name, TS_AM_MEDIA_TYPE* media_type)
{
ITSMFDecoder* decoder;
TSMF_DECODER_ENTRY entry;
char* fullname;
if (strrchr(name, '.') != NULL)
entry = (TSMF_DECODER_ENTRY) freerdp_load_plugin(name, TSMF_DECODER_EXPORT_FUNC_NAME);
else
{
fullname = xzalloc(strlen(name) + 6);
strcpy(fullname, "tsmf_");
strcat(fullname, name);
entry = (TSMF_DECODER_ENTRY) freerdp_load_plugin(fullname, TSMF_DECODER_EXPORT_FUNC_NAME);
xfree(fullname);
}
if (entry == NULL)
{
return NULL;
}
decoder = entry();
if (decoder == NULL)
{
DEBUG_WARN("failed to call export function in %s", name);
return NULL;
}
if (!decoder->SetFormat(decoder, media_type))
{
decoder->Free(decoder);
decoder = NULL;
}
return decoder;
}
ITSMFDecoder* tsmf_load_decoder(const char* name, TS_AM_MEDIA_TYPE* media_type)
{
ITSMFDecoder* decoder;
if (name)
{
decoder = tsmf_load_decoder_by_name(name, media_type);
}
else
{
decoder = tsmf_load_decoder_by_name("ffmpeg", media_type);
}
return decoder;
}