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/*
* Copyright (c) 2012, Code Aurora Forum. All rights reserved.
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of Code Aurora Forum, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#define LOG_NDEBUG 0
#define LOG_TAG "ExtendedExtractor"
#include <utils/Log.h>
//#define DUMP_TO_FILE
#include <media/stagefright/ExtendedExtractorFuncs.h>
#include <media/stagefright/MediaExtractor.h>
#include <media/stagefright/DataSource.h>
#include <media/stagefright/MediaDefs.h>
#include <utils/String8.h>
#include <dlfcn.h> // for dlopen/dlclose
#include "include/ExtendedExtractor.h"
#define LOGV LOGE
static const char* MM_PARSER_LIB = "libmmparser.so";
static const char* MM_PARSER_LITE_LIB = "libmmparser_lite.so";
namespace android {
void* MmParserLib() {
static void* mmParserLib = NULL;
static bool alreadyTriedToOpenMmParsers = false;
if(alreadyTriedToOpenMmParsers) {
return mmParserLib;
}
alreadyTriedToOpenMmParsers = true;
mmParserLib = ::dlopen(MM_PARSER_LIB, RTLD_LAZY);
if(mmParserLib != NULL) {
return mmParserLib;
}
LOGV("Failed to open MM_PARSER_LIB, dlerror = %s \n", dlerror());
mmParserLib = ::dlopen(MM_PARSER_LITE_LIB, RTLD_LAZY);
if(mmParserLib == NULL) {
LOGV("Failed to open MM_PARSER_LITE_LIB, dlerror = %s \n", dlerror());
}
return mmParserLib;
}
MediaExtractorFactory MediaExtractorFactoryFunction() {
static MediaExtractorFactory mediaFactoryFunction = NULL;
static bool alreadyTriedToFindFactoryFunction = false;
if(alreadyTriedToFindFactoryFunction) {
return mediaFactoryFunction;
}
void *mmParserLib = MmParserLib();
if (mmParserLib == NULL) {
return NULL;
}
mediaFactoryFunction = (MediaExtractorFactory) dlsym(mmParserLib, MEDIA_CREATE_EXTRACTOR);
alreadyTriedToFindFactoryFunction = true;
if(mediaFactoryFunction==NULL) {
LOGE(" dlsym for ExtendedExtractor factory function failed, dlerror = %s \n", dlerror());
}
return mediaFactoryFunction;
}
sp<MediaExtractor> ExtendedExtractor::CreateExtractor(const sp<DataSource> &source, const char *mime) {
MediaExtractorFactory f = MediaExtractorFactoryFunction();
if(f==NULL) {
return NULL;
}
sp<MediaExtractor> extractor = f(source, mime);
if(extractor==NULL) {
LOGE(" ExtendedExtractor failed to instantiate extractor \n");
}
return extractor;
}
void ExtendedExtractor::RegisterSniffers() {
void *mmParserLib = MmParserLib();
if (mmParserLib == NULL) {
return;
}
SnifferArrayFunc snifferArrayFunc = (SnifferArrayFunc) dlsym(mmParserLib, MEDIA_SNIFFER_ARRAY);
if(snifferArrayFunc==NULL) {
LOGE(" Unable to init Extended Sniffers, dlerror = %s \n", dlerror());
return;
}
const DataSource::SnifferFunc *snifferArray = NULL;
int snifferCount = 0;
//Invoke function in libmmparser to return its array of sniffers.
snifferArrayFunc(&snifferArray, &snifferCount);
if(snifferArray==NULL) {
LOGE(" snifferArray is NULL \n");
return;
}
bool flag= true;
//Register the remote sniffers with the DataSource.
for(int i=0; i<snifferCount; i++) {
#ifdef QCOM_HARDWARE
DataSource::RegisterSniffer(snifferArray[i],flag);
flag = false;
#else
DataSource::RegisterSniffer(snifferArray[i]);
#endif
}
}
} // namespace android
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