public override void Dispose()
{
base.Dispose();
if (_pTimer != null)
{
_pTimer.ResetStream();
_pTimer.EnqueueForDelete();
_pTimer = null;
}
_audioBuffer.Dispose();
_videoBuffer.Dispose();
_pSeekFile.Dispose();
_pFile.Dispose();
// ReleaseFile(_pSeekFile);
// ReleaseFile(_pFile);
}
public virtual bool Initialize(int clientSideBufferLength)
{
//1. Check to see if we have an universal seeking file
var seekFilePath = Name + "." + MEDIA_TYPE_SEEK;
if (!File.Exists(seekFilePath))
{
var meta = Variant.GetMap(new VariantMapHelper {
{ META_SERVER_FULL_PATH, Name }
});
if (!ResolveCompleteMetadata(ref meta))
{
Logger.FATAL("Unable to generate metadata");
return(false);
}
}
//2. Open the seek file
_pSeekFile = MediaFile.Initialize(seekFilePath);
if (_pSeekFile == null)
{
Logger.FATAL("Unable to open seeking file {0}", seekFilePath);
return(false);
}
//3. read stream capabilities
var streamCapabilitiesSize = _pSeekFile.Br.ReadUInt32();
//var raw = new MemoryStream();
//_pSeekFile.CopyPartTo(raw, (int)streamCapabilitiesSize);
if (streamCapabilitiesSize < 14 || !StreamCapabilities.Deserialize(_pSeekFile.DataStream, Capabilities))
{
Logger.FATAL("Unable to deserialize stream Capabilities. Please delete {0} and {1} files so they can be regenerated",
Name + "." + MEDIA_TYPE_SEEK,
Name + "." + MEDIA_TYPE_META);
return(false);
}
//4. compute offsets
_seekBaseOffset = _pSeekFile.Position;
_framesBaseOffset = _seekBaseOffset + 4;
//5. Compute the optimal window size by reading the biggest frame size
//from the seek file.
if (!_pSeekFile.SeekTo(_pSeekFile.Length - 8))
{
Logger.FATAL("Unable to seek to {0} position", _pSeekFile.Position - 8);
return(false);
}
ulong maxFrameSize = _pSeekFile.Br.ReadUInt64();
if (!_pSeekFile.SeekBegin())
{
Logger.FATAL("Unable to seek to beginning of the file");
return(false);
}
//3. Open the media file
var windowSize = (uint)maxFrameSize * 16;
//windowSize = windowSize < 65536 ? 65536 : windowSize;
//windowSize = (windowSize > (1024 * 1024)) ? (windowSize / 2) : windowSize;
_pFile = MediaFile.Initialize(Name);
//4. Read the frames count from the file
if (!_pSeekFile.SeekTo(_seekBaseOffset))
{
Logger.FATAL("Unable to seek to _seekBaseOffset: {0}", _seekBaseOffset);
return(false);
}
_totalFrames = _pSeekFile.Br.ReadUInt32();
_timeToIndexOffset = _framesBaseOffset + _totalFrames * MediaFrame.MediaFrameSize;
//5. Set the client side buffer length
_clientSideBufferLength = clientSideBufferLength;
//6. Create the timer
_pTimer = new InFileStreamTimer(this);
_pTimer.EnqueueForTimeEvent((uint)(_clientSideBufferLength - _clientSideBufferLength / 3));
//7. Done
return(true);
}
