public StreamDecoder()
{
_hikDecoder = new HikM4Decoder();
_ffmpegDecoder = new FfmpegDecoder();
_hikDecoder.VideoFrameEvent += HikDecoder_VideoFrameEvent;
}
public void Dispose()
{
if (_decoder != null)
{
_decoder.VideoFrameEvent -= onVideoFrame;
_decoder.Dispose();
}
_decoder = null;
}
private void initDecoder()
{
_ffmpegDecoder = new FfmpegDecoder();
_hikm4Decoder = new HikM4Decoder();
_univiewDecoder = new UniviewDecoder();
_hikm4Decoder.VideoFrameEvent += hikm4Decoder_VideoFrameEvent;
_univiewDecoder.VideoFrameEvent += univiewDecoder_VideoFrameEvent;
}
void disposeHikDecoder()
{
if (_hikDecoder != null)
{
_hikDecoder.VideoFrameEvent -= onVideoFrame;
_hikDecoder.Dispose();
}
_hikDecoder = null;
}
void initHikDecoder(byte[] header)
{
if (_hikDecoder == null)
{
_hikDecoder = new HikM4Decoder();
_hikDecoder.VideoFrameEvent += onVideoFrame;
}
_hikDecoder.InputData(HikM4Decoder.HeaderType, header);
}
private void updatePlaySpeed(HikM4Decoder decoder)
{
if (_fastTimes == _expFastTimes)
{
return;
}
while (_fastTimes < _expFastTimes)
{
decoder.Fast();
_fastTimes++;
}
while (_fastTimes > _expFastTimes)
{
decoder.Slow();
_fastTimes--;
}
Console.WriteLine("FastTimes: " + _fastTimes);
}
void run()
{
HikM4Decoder decoder = new HikM4Decoder();
decoder.VideoFrameEvent += Hikm4Decoder_VideoFrameEvent;
byte[] header = null;
int index = 0;
int wait = 0;
while (!_disposeEvent.WaitOne(wait))
{
wait = 1;
if (_records.Length > 0)
{
bool reposed = false;
DateTime startRealTime;
DateTime startPlayTime;
lock (_playTimeLockObj)
{
startRealTime = _startRealTime;
startPlayTime = _startPlayTime;
reposed = _reposed;
_reposed = false;
}
if (_playing || reposed)
{
DateTime curPlayTime = startPlayTime + new TimeSpan((long)Math.Round((DateTime.Now - startRealTime).Ticks * _speed));
if (curPlayTime > EndTime)
{
curPlayTime = EndTime;
}
Record <HikM4Package> record = null;
if (reposed)
{
for (index = 0; index < _records.Length; index++)
{
if (_records[index].Time >= curPlayTime)
{
break;
}
}
if (index < _records.Length)
{
record = _records[index];
}
}
else
{
int next = index + 1;
if (next < _records.Length && _records[next].Time < curPlayTime)
{
index = next;
record = _records[index];
}
}
if (record != null)
{
_currentTime = record.Time;
if (!HikM4Decoder.ByteArrayEqual(header, record.Header))
{
header = record.Header;
decoder.InputData(HikM4Decoder.HeaderType, header);
}
updatePlaySpeed(decoder);
decoder.InputData(record.Package.Type, record.Package.Data);
wait = 0;
}
}
}
}
}
public HikStreamDecoder(byte[] data)
{
_decoder = new HikM4Decoder();
_decoder.InputData(HikM4Decoder.HeaderType, data);
_decoder.VideoFrameEvent += onVideoFrame;
}
