/**
* Write a text string to a file.
* @return true on success, false on error.
*/
bool FileUtil::writeTextToFile(
const MAUtil::String& filePath,
const MAUtil::String& outText)
{
MAHandle file = openFileForWriting(filePath);
if (file < 0)
{
return false;
}
int result = maFileWrite(file, outText.c_str(), outText.length());
maFileClose(file);
return result == 0;
}
bool
ArtUtility::extractSingle( JobContext& job, const CoverArtBox::Item& item, uint32_t index )
{
// compute out filename
string out_name = job.file;
FileSystem::pathnameStripExtension( out_name );
ostringstream oss;
oss << out_name << ".art[" << index << ']';
// if implicit we try to determine type by inspecting data
BasicType bt = item.type;
if( bt == BT_IMPLICIT )
bt = computeBasicType( item.buffer, item.size );
// add file extension appropriate for known covr-box types
switch( bt ) {
case BT_GIF: oss << ".gif"; break;
case BT_JPEG: oss << ".jpg"; break;
case BT_PNG: oss << ".png"; break;
case BT_BMP: oss << ".bmp"; break;
default:
oss << ".dat";
break;
}
out_name = oss.str();
verbose1f( "extracting %s (index=%d) -> %s\n", job.file.c_str(), index, out_name.c_str() );
if( dryrunAbort() )
return SUCCESS;
File out( out_name, File::MODE_CREATE );
if( openFileForWriting( out ))
return FAILURE;
File::Size nout;
if( out.write( item.buffer, item.size, nout ))
return herrf( "write failed: %s\n", out_name.c_str() );
out.close();
return SUCCESS;
}
/**
* Write a data object to a file.
* @return true on success, false on error.
*/
bool FileUtil::writeDataToFile(
const MAUtil::String& filePath,
MAHandle outData)
{
MAHandle file = openFileForWriting(filePath);
if (file < 0)
{
return false;
}
int result = maFileWriteFromData(
file,
outData,
0,
maGetDataSize(outData));
maFileClose(file);
return result == 0;
}
/*
* Prepares an AVFormatContext for output.
* Currently, the output format and codecs are hardcoded in this file.
*/
void Java_com_example_ffmpegtest_recorder_FFmpegWrapper_prepareAVFormatContext(JNIEnv *env, jobject obj, jstring jOutputPath){
init();
// Create AVRational that expects timestamps in microseconds
videoSourceTimeBase = av_malloc(sizeof(AVRational));
videoSourceTimeBase->num = 1;
videoSourceTimeBase->den = 1000000;
audioSourceTimeBase = av_malloc(sizeof(AVRational));
audioSourceTimeBase->num = 1;
audioSourceTimeBase->den = 1000000;
AVFormatContext *inputFormatContext;
outputPath = (*env)->GetStringUTFChars(env, jOutputPath, NULL);
outputFormatContext = avFormatContextForOutputPath(outputPath, outputFormatName);
LOGI("post avFormatContextForOutputPath");
// For copying AVFormatContext from sample file:
/*
inputFormatContext = avFormatContextForInputPath(sampleFilePath, outputFormatName);
LOGI("post avFormatContextForInputPath");
copyAVFormatContext(&outputFormatContext, &inputFormatContext);
LOGI("post copyAVFormatContext");
*/
// For manually crafting AVFormatContext
addVideoStream(outputFormatContext);
addAudioStream(outputFormatContext);
av_opt_set_int(outputFormatContext->priv_data, "hls_time", hlsSegmentDurationSec, 0);
int result = openFileForWriting(outputFormatContext, outputPath);
if(result < 0){
LOGE("openFileForWriting error: %d", result);
}
writeFileHeader(outputFormatContext);
}
/** Action for exporting chapters from the <b>job.file</b>
*
*
* @param job the job to process
* @return mp4v2::util::SUCCESS if successful, mp4v2::util::FAILURE otherwise
*/
bool
ChapterUtility::actionExport( JobContext& job )
{
job.fileHandle = MP4Read( job.file.c_str() );
if( job.fileHandle == MP4_INVALID_FILE_HANDLE )
{
return herrf( "unable to open for read: %s\n", job.file.c_str() );
}
// get the list of chapters
MP4Chapter_t* chapters = 0;
uint32_t chapterCount = 0;
MP4ChapterType chtp = MP4GetChapters( job.fileHandle, &chapters, &chapterCount, _ChapterType );
if (0 == chapterCount)
{
return herrf( "File \"%s\" does not contain chapters of type %s\n", job.file.c_str(),
getChapterTypeName( chtp ).c_str() );
}
// build the filename
string outName = job.file;
if( _ChapterFile.empty() )
{
FileSystem::pathnameStripExtension( outName );
outName.append( ".chapters.txt" );
}
else
{
outName = _ChapterFile;
}
ostringstream oss;
oss << "Exporting " << chapterCount << " " << getChapterTypeName( chtp );
oss << " chapters from file " << '"' << job.file << '"' << " into chapter file " << '"' << outName << '"' << endl;
verbose1f( "%s", oss.str().c_str() );
if( dryrunAbort() )
{
// free up the memory
MP4Free(chapters);
return SUCCESS;
}
// open the file
File out( outName, File::MODE_CREATE );
if( openFileForWriting( out ) )
{
// free up the memory
MP4Free(chapters);
return FAILURE;
}
// write the chapters
#if defined( _WIN32 )
static const char* LINEND = "\r\n";
#else
static const char* LINEND = "\n";
#endif
File::Size nout;
bool failure = SUCCESS;
int width = 2;
if( CHPT_FMT_COMMON == _ChapterFormat && (chapterCount / 100) >= 1 )
{
width = 3;
}
Timecode duration( 0, CHAPTERTIMESCALE );
duration.setFormat( Timecode::DECIMAL );
for( uint32_t i = 0; i < chapterCount; ++i )
{
// print the infos
ostringstream oss;
switch( _ChapterFormat )
{
case CHPT_FMT_COMMON:
oss << "CHAPTER" << setw( width ) << setfill( '0' ) << i+1 << '=' << duration.svalue << LINEND
<< "CHAPTER" << setw( width ) << setfill( '0' ) << i+1 << "NAME=" << chapters[i].title << LINEND;
break;
case CHPT_FMT_NATIVE:
default:
oss << duration.svalue << ' ' << chapters[i].title << LINEND;
}
string str = oss.str();
if( out.write( str.c_str(), str.size(), nout ) )
{
failure = herrf( "write to %s failed: %s\n", outName.c_str(), sys::getLastErrorStr() );
break;
}
// add the duration of this chapter to the sum (the start time of the next chapter)
duration += Timecode(chapters[i].duration, CHAPTERTIMESCALE);
}
out.close();
if( failure )
{
verbose1f( "removing file %s\n", outName.c_str() );
::remove( outName.c_str() );
}
// free up the memory
MP4Free(chapters);
return SUCCESS;
}
