public InNetRTPStream(RtspProtocol _rtsp, StreamsManager streamsManager, string _streamName, StreamCapabilities _streamCapabilities, TimeSpan _rtcpDetectionInterval) : base(_rtsp, streamsManager, _streamName)
{
bandwidth = _streamCapabilities.BandwidthHint;
this._rtcpDetectionInterval = _rtcpDetectionInterval;
Capabilities = _streamCapabilities;
_currentNalu = Utils.Rms.GetStream();
_hasAudio = _streamCapabilities.AudioCodecId != AudioCodec.Unknown;
_hasVideo = _streamCapabilities.VideoCodecId != VideoCodec.Unknown;
_rtcpPresence = RtcpPresence.Unknown;
}
public override bool FeedData(Stream pData, uint dataLength, uint processedLength, uint totalLength, uint absoluteTimestamp, bool isAudio)
{
switch (_rtcpPresence)
{
case RtcpPresence.Unknown:
if (_rtcpDetectionInterval == TimeSpan.Zero)
{
WARN("RTCP disabled on stream {0}({1}) with name {2}. A/V drifting may occur over long periods of time", Type.TagToString(), UniqueId, Name);
_rtcpPresence = RtcpPresence.Absent;
return(true);
}
if (_rtcpDetectionStart == DateTime.MinValue)
{
_rtcpDetectionStart = DateTime.Now;
return(true);
}
if (DateTime.Now - _rtcpDetectionStart > _rtcpDetectionInterval)
{
WARN("Stream {0}({1}) with name {2} doesn't have RTCP. A/V drifting may occur over long periods of time", Type.TagToString(), UniqueId, Name);
_rtcpPresence = RtcpPresence.Absent;
return(true);
}
var audioRTCPPresent = !_hasAudio || _audioNTP != 0;
var videoRTCPPresent = !_hasVideo || _videoNTP != 0;
if (audioRTCPPresent && videoRTCPPresent)
{
_rtcpPresence = RtcpPresence.Available;
}
return(true);
case RtcpPresence.Available:
var rtp = isAudio ? _audioRTP : _videoRTP;
var ntp = isAudio ? _audioNTP : _videoNTP;
absoluteTimestamp = (uint)(ntp + absoluteTimestamp - rtp);
break;
case RtcpPresence.Absent:
var firstTimestamp = isAudio ? _audioFirstTimestamp : _videoFirstTimestamp;
if (firstTimestamp < 0)
{
firstTimestamp = absoluteTimestamp;
}
absoluteTimestamp -= (uint)firstTimestamp;
break;
default:
return(false);
}
var lastTs = isAudio ? _audioLastTs : _videoLastTs;
if (-1.0 < lastTs * 100.0 - absoluteTimestamp * 100.0 && lastTs * 100.0 - absoluteTimestamp * 100.0 < 1.0)
{
absoluteTimestamp = lastTs;
}
if (lastTs > absoluteTimestamp)
{
WARN("Back time on {0} ATS:{1} LTS:{2} D:{3}", Name, absoluteTimestamp, lastTs, lastTs - absoluteTimestamp);
return(true);
}
if (isAudio)
{
_audioLastTs = absoluteTimestamp;
}
else
{
_videoLastTs = absoluteTimestamp;
}
if (!_avCodecsSent)
{
foreach (var temp in OutStreams.Where(x => !x.IsEnqueueForDelete()))
{
SignalOutStreamAttached(temp);
}
if (!_avCodecsSent)
{
return(true);
}
}
if (_hasAudio && _hasVideo && ((_audioLastTs == 0) || (_videoLastTs == 0)))
{
return(true);
}
return(base.FeedData(pData, dataLength, processedLength, totalLength, absoluteTimestamp, isAudio));
}
