VStarCam IP camera stream not accepted

I connect to VStarcam C8824WIP IP-camera via RTSP and i got several errors when recieve frames

1. First error RtspClientSharp.Rtsp.RtspClientException: Receive error —> RtspClientSharp.MediaParsers.H264ParserException: Invalid nal unit type: 31 at RtspClientSharp.MediaParsers.H264Parser.ProcessNalUnit(DateTime frameTimestamp, ArraySegment1 byteSegment, Boolean hasStartMarker, Boolean generateFrame) at RtspClientSharp.MediaParsers.H264Parser.Parse(DateTime frameTimestamp, ArraySegment1 byteSegment, Boolean dontSliceForce, Boolean generateFrame) at RtspClientSharp.MediaParsers.H264VideoPayloadParser.ParseFU(DateTime frameTimestamp, ArraySegment1 byteSegment, Int32 donFieldSize, Boolean markerBit) at RtspClientSharp.MediaParsers.H264VideoPayloadParser.Parse(TimeSpan timeOffset, ArraySegment1 byteSegment, Boolean markerBit) at RtspClientSharp.Rtp.RtpStream.ProcessImmediately(RtpPacket& rtpPacket) at RtspClientSharp.Rtp.RtpStream.Process(ArraySegment`1 payloadSegment) at RtspClientSharp.Rtsp.RtspClientInternal.<ReceiveOverTcpAsync>d__33.MoveNext() — End of stack trace from previous location where exception was thrown — at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at RtspClientSharp.Rtsp.RtspClientInternal.<ReceiveAsync>d__18.MoveNext() — End of stack trace from previous location where exception was thrown — at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at RtspClientSharp.RtspClient.<ReceiveAsync>d__14.MoveNext() — End of inner exception stack trace — at RtspClientSharp.RtspClient.<ReceiveAsync>d__14.MoveNext() — End of stack trace from previous location where exception was thrown — at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.TaskAwaiter.GetResult()

2. second error RtspClientSharp.Rtsp.RtspClientException: Receive error —> System.ArgumentException: Offset and length were out of bounds for the array or count is greater than the number of elements from index to the end of the source collection. at System.ArraySegment1..ctor(T[] array, Int32 offset, Int32 count) at RtspClientSharp.MediaParsers.H264VideoPayloadParser.ParseMTAP(DateTime frameTimestamp, ArraySegment1 byteSegment, Int32 tsOffsetFieldSize, Boolean markerBit) at RtspClientSharp.MediaParsers.H264VideoPayloadParser.Parse(TimeSpan timeOffset, ArraySegment1 byteSegment, Boolean markerBit) at RtspClientSharp.Rtp.RtpStream.ProcessImmediately(RtpPacket& rtpPacket) at RtspClientSharp.Rtp.RtpStream.Process(ArraySegment1 payloadSegment) at RtspClientSharp.Rtsp.RtspClientInternal.<ReceiveOverTcpAsync>d__33.MoveNext() — End of stack trace from previous location where exception was thrown — at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at RtspClientSharp.Rtsp.RtspClientInternal.<ReceiveAsync>d__18.MoveNext() — End of stack trace from previous location where exception was thrown — at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at RtspClientSharp.RtspClient.<ReceiveAsync>d__14.MoveNext() — End of inner exception stack trace — at RtspClientSharp.RtspClient.<ReceiveAsync>d__14.MoveNext() — End of stack trace from previous location where exception was thrown — at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.TaskAwaiter.GetResult()

3. When scene is not changed infront of camera i get timeout exception

RtspClientSharp.Rtsp.RtspClientException: Receive timeout —> System.TimeoutException: The operation has timed out. — End of inner exception stack trace — at RtspClientSharp.RtspClient.<ReceiveAsync>d__14.MoveNext() — End of stack trace from previous location where exception was thrown — at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.TaskAwaiter.GetResult()

[mistal-distal]

I can fix it if you like and submit a PR. I have an idea on how to fix it for now, and you can return it as a meta data packet type later.

On Mon, May 27, 2019, 2:56 AM Kirill [e-mail] wrote:

@DogFive https://github.com/DogFive Thank you for help.

Guys, I could offer to ignore this type of NAL’s if problem is really connected only with NAL type

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[IvanovNiko]

Thank you all for help. Problem was found and fixed. It was connected with additional space in SDP answer in media line.

Fixed here: 04f5abf

New version 1.2.8 was released. Please reopen if required.

Thank you, Kirill. You made great and fast job. My problem was solved.