Status MovieExporter::run(const Object* obj,
const ExportMovieDesc& desc,
std::function<void( float )> progress )
{
progress( 0.f );
QString ffmpegPath = ffmpegLocation();
qDebug() << ffmpegPath;
if ( !QFile::exists( ffmpegPath ) )
{
qDebug() << "Please place ffmpeg.exe in " << ffmpegPath << " directory";
return Status::ERROR_FFMPEG_NOT_FOUND;
}
STATUS_CHECK( checkInputParameters( desc ) );
mDesc = desc;
qDebug() << "OutFile: " << mDesc.strFileName;
// Setup temporary folder
if ( !mTempDir.isValid() )
{
Q_ASSERT( false && "Cannot create temp folder." );
return Status::FAIL;
}
mTempWorkDir = mTempDir.path();
progress( 0.03f );
if ( !desc.strFileName.endsWith( "gif" ) )
{
STATUS_CHECK( assembleAudio( obj, ffmpegPath, progress ) );
}
progress( 0.10f );
STATUS_CHECK( generateImageSequence( obj, progress ) );
progress( 0.99f );
twoPassEncoding( ffmpegPath, desc.strFileName );
progress( 1.0f );
return Status::OK;
}
/** Begin exporting the movie described by exportDesc.
*
* @param[in] obj An Object containing the animation to export.
* @param[in] desc A structure containing all the export parameters.
* See ExportMovieDesc.
* @param[out] majorProgress A function to update the major progress bar.
* The major progress bar goes from 0-100% only
* one time, representing the overall progress of
* the export. The first float parameter is
* the current progress %, and the second is
* the desired progress when the next sub-task
* completes. This should only be called at the
* beginning of a subtask.
* @param[out] minorProgress A function to update the minor progress bar.
* The minor progress bar goes from 0-100% for
* each sub-task of the exporting process.
* It is up to minor progress to update the
* major progress bar to reflect the sub-task
* progress.
* @param[out] progressMessage A function ot update the progres bar
* message. The messages will describe
* the current sub-task of the exporting
* process.
*
* @return Returns Status:OK on success, or Status::FAIL on error.
*/
Status MovieExporter::run(const Object* obj,
const ExportMovieDesc& desc,
std::function<void(float, float)> majorProgress,
std::function<void(float)> minorProgress,
std::function<void(QString)> progressMessage)
{
majorProgress(0.f, 0.03f);
minorProgress(0.f);
progressMessage(QObject::tr("Checking environment..."));
clock_t t1 = clock();
QString ffmpegPath = ffmpegLocation();
qDebug() << ffmpegPath;
if (!QFile::exists(ffmpegPath))
{
#ifdef _WIN32
qCritical() << "Please place ffmpeg.exe in " << ffmpegPath << " directory";
#else
qCritical() << "Please place ffmpeg in " << ffmpegPath << " directory";
#endif
return Status::ERROR_FFMPEG_NOT_FOUND;
}
STATUS_CHECK(checkInputParameters(desc));
mDesc = desc;
qDebug() << "OutFile: " << mDesc.strFileName;
// Setup temporary folder
if (!mTempDir.isValid())
{
Q_ASSERT(false && "Cannot create temp folder.");
return Status::FAIL;
}
mTempWorkDir = mTempDir.path();
minorProgress(0.f);
if (desc.strFileName.endsWith("gif", Qt::CaseInsensitive))
{
majorProgress(0.03f, 1.f);
progressMessage("Generating gif...");
minorProgress(0.f);
STATUS_CHECK(generateGif(obj, ffmpegPath, desc.strFileName, minorProgress));
}
else
{
majorProgress(0.03f, 0.25f);
progressMessage("Assembling audio...");
minorProgress(0.f);
STATUS_CHECK(assembleAudio(obj, ffmpegPath, minorProgress));
minorProgress(1.f);
majorProgress(0.25f, 1.f);
progressMessage("Generating movie...");
STATUS_CHECK(generateMovie(obj, ffmpegPath, desc.strFileName, minorProgress));
}
minorProgress(1.f);
majorProgress(1.f, 1.f);
progressMessage(QObject::tr("Done"));
clock_t t2 = clock() - t1;
qDebug("MOVIE = %.1f sec", static_cast<double>(t2 / CLOCKS_PER_SEC));
return Status::OK;
}
