Method DoIndexing

src/ffmpegsource_common.cpp:63–100

@brief Does indexing of a source file @param Indexer A pointer to the indexer object representing the file to be indexed @param CacheName The filename of the output index file @param Trackmask A binary mask of the track numbers to index

/// @param CacheName    The filename of the output index file
/// @param Trackmask    A binary mask of the track numbers to index
FFMS_Index *FFmpegSourceProvider::DoIndexing(FFMS_Indexer *Indexer,
	                                         agi::fs::path const& CacheName,
	                                         TrackSelection Track,
	                                         FFMS_IndexErrorHandling IndexEH) {
	char FFMSErrMsg[1024];
	FFMS_ErrorInfo ErrInfo;
	ErrInfo.Buffer		= FFMSErrMsg;
	ErrInfo.BufferSize	= sizeof(FFMSErrMsg);
	ErrInfo.ErrorType	= FFMS_ERROR_SUCCESS;
	ErrInfo.SubType		= FFMS_ERROR_SUCCESS;

	// index all audio tracks
	FFMS_Index *Index;
	br->Run([&](agi::ProgressSink *ps) {
		ps->SetTitle(from_wx(_("Indexing")));
		ps->SetMessage(from_wx(_("Reading timecodes and frame/sample data")));
		TIndexCallback callback = [](int64_t Current, int64_t Total, void *Private) -> int {
			auto ps = static_cast<agi::ProgressSink *>(Private);
			ps->SetProgress(Current, Total);
			return ps->IsCancelled();
		};
		if (Track == TrackSelection::All)
			FFMS_TrackTypeIndexSettings(Indexer, FFMS_TYPE_AUDIO, 1, 0);
		else if (Track != TrackSelection::None)
			FFMS_TrackIndexSettings(Indexer, static_cast<int>(Track), 1, 0);
		FFMS_TrackTypeIndexSettings(Indexer, FFMS_TYPE_VIDEO, 1, 0);
		FFMS_SetProgressCallback(Indexer, callback, ps);
		Index = FFMS_DoIndexing2(Indexer, IndexEH, &ErrInfo);
	});

	if (Index == nullptr)
		throw agi::EnvironmentError(std::string("Failed to index: ") + ErrInfo.Buffer);

	// write index to disk for later use
	FFMS_WriteIndex(CacheName.string().c_str(), Index, &ErrInfo);

	return Index;
}

/// @brief Finds all tracks of the given type and return their track numbers and respective codec names
/// @param Indexer	The indexer object representing the source file