public void ExtractStreams(bool extractAudio, bool extractVideo, bool extractTimeCodes, OverwriteDelegate overwrite) {
uint dataOffset, flags, prevTagSize;
_outputPathBase = Path.Combine(_outputDirectory, Path.GetFileNameWithoutExtension(_inputPath));
_overwrite = overwrite;
_extractAudio = extractAudio;
_extractVideo = extractVideo;
_extractTimeCodes = extractTimeCodes;
_videoTimeStamps = new List<uint>();
Seek(0);
if (_fileLength < 4 || ReadUInt32() != 0x464C5601) {
if (_fileLength >= 8 && ReadUInt32() == 0x66747970) {
throw new Exception("This is a MP4 file. YAMB or MP4Box can be used to extract streams.");
}
else {
throw new Exception("This isn't a FLV file.");
}
}
if (Array.IndexOf(_outputExtensions, Path.GetExtension(_inputPath).ToLowerInvariant()) != -1) {
// Can't have the same extension as files we output
throw new Exception("Please change the extension of this FLV file.");
}
if (!Directory.Exists(_outputDirectory)) {
throw new Exception("Output directory doesn't exist.");
}
flags = ReadUInt8();
dataOffset = ReadUInt32();
Seek(dataOffset);
prevTagSize = ReadUInt32();
while (_fileOffset < _fileLength) {
if (!ReadTag()) break;
if ((_fileLength - _fileOffset) < 4) break;
prevTagSize = ReadUInt32();
}
_averageFrameRate = CalculateAverageFrameRate();
_trueFrameRate = CalculateTrueFrameRate();
CloseOutput(_averageFrameRate, false);
}
public void ExtractStreams(bool extractAudio, bool extractVideo, bool extractTimeCodes, OverwriteDelegate overwrite)
{
uint dataOffset, flags, prevTagSize;
_outputPathBase = Path.Combine(_outputDirectory, Path.GetFileNameWithoutExtension(_inputPath));
_overwrite = overwrite;
_extractAudio = extractAudio;
_extractVideo = extractVideo;
_extractTimeCodes = extractTimeCodes;
_videoTimeStamps = new List<uint>();
Seek(0);
if (_fileLength < 4 || ReadUInt32() != 0x464C5601)
{
if (_fileLength >= 8 && ReadUInt32() == 0x66747970)
{
throw new Exception("This is a MP4 file. ");
}
else
{
throw new Exception("This isn't a FLV file.");
}
}
flags = ReadUInt8();
dataOffset = ReadUInt32();
Seek(dataOffset);
prevTagSize = ReadUInt32();
while (_fileOffset < _fileLength)
{
if (!ReadTag()) break;
if ((_fileLength - _fileOffset) < 4) break;
prevTagSize = ReadUInt32();
}
CloseOutput(false);
}
