public void StartDecoder(FfmpegPackage package)
{
if (!_ffmpegHeaderInit)
{
throw new InvalidOperationException("没有初始化FFMPEG视频流包头。");
}
var frame = _ffmpegDecoder.Decode(package.Type, package.Pts, package.Data);
completeFfmpegDecode(frame);
}
public bool Update(StreamPacket packet)
{
FfmpegDecoder.VideoFrame frame = _decoder?.Decode(1, (ulong)packet.Time.Ticks / 10000, packet.Buffer);
if (frame != null)
{
onDisplay(new VideoFrame(frame.Width, frame.Height, packet.Time.Ticks, frame.Data));
}
return(true);
}
void run()
{
FfmpegDecoder decoder = new FfmpegDecoder();
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 <FfmpegPackage> 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;
decoder.Init(record.Package.CodecID, record.Package.Width, record.Package.Height);
var frame = decoder.Decode(record.Package.Type, record.Package.Pts, record.Package.Data);
if (frame != null)
{
var videoFrame = new VideoFrame()
{
Width = frame.Width,
Height = frame.Height,
Timestamp = (int)frame.Pts,
Data = frame.Data,
};
fireVideoFrameEvent(videoFrame);
}
wait = 0;
}
}
}
}
}