Giter VIP home page Giter VIP logo

vp8.net's People

Contributors

gdkchan avatar sipsorcery avatar

Stargazers

avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar avatar

Watchers

avatar avatar avatar avatar avatar avatar

Forkers

terricide bangush savanniekerk wow55qq longkun234 gdkchan pavadik

vp8.net's Issues

Question: How are you converting VP8

I want to help out with this if I can. Are you using a tool to convert c++ to c# or you doing each file by hand? I'm interested in the getting the encoder working.

Test observations

An observation note rather than an issue (27 Nov 2021):

  • Tested with the WebRTCReceiver example.
    • Initial 640x480 stream from Chrome to the Windows FOrms application is decoded with very low latency.
    • In one test latency grew very noticeably with a lag of multiple seconds.
    • In other tests latency stayed low.
    • The video decoding did fail, see screenshot, but this corresponded with console message about missinf RTP packets so is more likely a result of mssing input frames rather than a decoder bug. Signal did come back after a minute or two, when Chrome generated the next key frame.
    • No segfaults or memory leaks observed.
    • CPU and memory use very low.

vp8_decode_corruption

  • Same test but requested Chrome video resolution of 1024x768:
    • Chrome initially sends 640 x 360
      • No noticeable latency on decoder.
    • Chrome change resolution to 960x540
      • Noticeable 1 to 2s latency on decoder.
      • RTP missing packets log meessages.
      • AccessViolation exception on decoder
Fatal error. System.AccessViolationException: Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
   at Vpx.Net.filter.filter_block2d_first_pass(Byte*, Int32*, UInt32, UInt32, UInt32, UInt32, Int16* ByRef)
   at Vpx.Net.filter.filter_block2d(Byte*, Byte*, UInt32, Int32, Int16*, Int16*)
   at Vpx.Net.filter.vp8_sixtap_predict4x4_c(Byte*, Int32, Int32, Int32, Byte*, Int32)
   at Vpx.Net.vp8_rtcd.vp8_sixtap_predict4x4_c(Byte*, Int32, Int32, Int32, Byte*, Int32)
   at Vpx.Net.vp8_rtcd.vp8_sixtap_predict4x4(Byte*, Int32, Int32, Int32, Byte*, Int32)
   at Vpx.Net.reconinter.build_inter_predictors_b(Vpx.Net.BLOCKD, Byte*, Int32, Byte*, Int32, Vpx.Net.vp8_subpix_fn_t)
   at Vpx.Net.reconinter.build_inter4x4_predictors_mb(Vpx.Net.MACROBLOCKD ByRef)
   at Vpx.Net.reconinter.vp8_build_inter_predictors_mb(Vpx.Net.MACROBLOCKD ByRef)
   at Vpx.Net.decodeframe.decode_macroblock(Vpx.Net.VP8D_COMP, Vpx.Net.MACROBLOCKD, UInt32)
   at Vpx.Net.decodeframe.decode_mb_rows(Vpx.Net.VP8D_COMP)
   at Vpx.Net.decodeframe.vp8_decode_frame(Vpx.Net.VP8D_COMP)
   at Vpx.Net.onyxd.vp8dx_receive_compressed_data(Vpx.Net.VP8D_COMP, Int64)
   at Vpx.Net.vp8_dx.vp8_decode(Vpx.Net.vpx_codec_alg_priv_t, Byte*, UInt32, IntPtr, Int64)
   at Vpx.Net.vpx_decoder.vpx_codec_decode(Vpx.Net.vpx_codec_ctx_t, Byte*, UInt32, IntPtr, Int64)
   at Vpx.Net.VP8Codec.DecodeVideo(Byte[], SIPSorceryMedia.Abstractions.VideoPixelFormatsEnum, SIPSorceryMedia.Abstractions.VideoCodecsEnum)
   at Vpx.Net.Vp8NetVideoEncoderEndPoint.GotVideoFrame(System.Net.IPEndPoint, UInt32, Byte[], SIPSorceryMedia.Abstractions.VideoFormat)
   at SIPSorcery.Net.RTPSession.OnReceive(Int32, System.Net.IPEndPoint, Byte[])
   at SIPSorcery.Net.RTCPeerConnection.OnRTPDataReceived(Int32, System.Net.IPEndPoint, Byte[])
   at SIPSorcery.Net.RtpIceChannel.OnRTPPacketReceived(SIPSorcery.Net.UdpReceiver, Int32, System.Net.IPEndPoint, Byte[])
   at SIPSorcery.Net.UdpReceiver.EndReceiveFrom(System.IAsyncResult)
   at System.Net.LazyAsyncResult.Complete(IntPtr)
   at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
   at System.Net.ContextAwareResult.Complete(IntPtr)
   at System.Net.Sockets.BaseOverlappedAsyncResult.CompletionPortCallback(UInt32, UInt32, System.Threading.NativeOverlapped*)
   at System.Threading._IOCompletionCallback.PerformIOCompletionCallback(UInt32, UInt32, System.Threading.NativeOverlapped*)

Recommend Projects

  • React photo React

    A declarative, efficient, and flexible JavaScript library for building user interfaces.

  • Vue.js photo Vue.js

    🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.

  • Typescript photo Typescript

    TypeScript is a superset of JavaScript that compiles to clean JavaScript output.

  • TensorFlow photo TensorFlow

    An Open Source Machine Learning Framework for Everyone

  • Django photo Django

    The Web framework for perfectionists with deadlines.

  • D3 photo D3

    Bring data to life with SVG, Canvas and HTML. 📊📈🎉

Recommend Topics

  • javascript

    JavaScript (JS) is a lightweight interpreted programming language with first-class functions.

  • web

    Some thing interesting about web. New door for the world.

  • server

    A server is a program made to process requests and deliver data to clients.

  • Machine learning

    Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.

  • Game

    Some thing interesting about game, make everyone happy.

Recommend Org

  • Facebook photo Facebook

    We are working to build community through open source technology. NB: members must have two-factor auth.

  • Microsoft photo Microsoft

    Open source projects and samples from Microsoft.

  • Google photo Google

    Google ❤️ Open Source for everyone.

  • D3 photo D3

    Data-Driven Documents codes.