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• vvcdec : add dsp init and inv transform

  5 décembre 2023, par Nuo Mi

  vvcdec : add dsp init and inv transform
  Co-authored-by : Xu Mu <toxumu@outlook.com>
  
  Co-authored-by : Frank Plowman <post@frankplowman.com>
  
  Co-authored-by : Shaun Loo <shaunloo10@gmail.com>
  
  Co-authored-by : Wu Jianhua <toqsxw@outlook.com>
  

  • [DH] libavcodec/vvc/Makefile
  • [DH] libavcodec/vvc/vvcdsp.c
  • [DH] libavcodec/vvc/vvcdsp_template.c

• Texture bound to texture unit 0 is not renderable

  2 décembre 2018, par Trying_To_Understand

  I followed this tutorial https://github.com/phoboslab/jsmpeg. I have an open wesocket that gets the data. Sometimes, it’s take a long time to the ffmpeg (on a remote computer) to get the data from my ip camera, so I wrote a setTimeout function that waites for 10 sec to be "sure" that the ffmpeg getting the data from the ip camera. If I remove this setTimeout function this error will show up :

  [.WebGL-0000020CFA5C04D0]RENDER WARNING : texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering.

  This is my code for showing the stream to the client :

  this.dataService.getDataByParam(camera.CameraId.toString())
  
    .subscribe(
  
    (result: any) => {
  
  
  
      setTimeout(() => {
  
        this.ws = new WebSocket('ws://' + result);
  
        $(document).ready(() => {
  
  
  
          this.player = new jsmpeg(this.ws, {
  
            canvas: document.getElementById("canvas"),
  
            autoplay: true,
  
            audio: true,
  
            pauseWhenHidden: false,
  
          });
  
  
  
        })
  
      }, 10000);
  
    },
  
    (error: Error) => {
  
      this.streamErrorMsg = "Problem with the server, please try again after some time."
  
    });
  
   }

  How can i know for sure that the ffmpeg has connected successfully to the camera and started to convert the data on the client ? i want to avoid writting the setTimeout function.

• ffmpeg itsoffset doesn't work with pcm audio and raw 264 video

  28 janvier 2019, par Danny

  I need to create an MP4 container with data from a hardware encoder. The encoder outputs PCM 16-bit signed audio and raw H.264 ES video frames.

  This ffmpeg command line I’ve got works but the audio and video are not sync’d.

  From other posts I know that itsoffset only works with video and probably doesn’t work with -v copy

  I’ve confirmed that applying an itsoffset has no effect.

  Here’s the command line. Any suggestions ?

  One post suggested itsoffset works if you re-encode the video. But doing that needs CPU power and adds latency. (And what’s the point of a hardware encoder then ?)

  ffmpeg -f s16le -ar 44.1k -ac 2      -i Audio_20190110-165736.pcm 
  
         -fflags +genpts -itsoffset -5 -i Video_20190110-165736.264
  
         -c:v copy -c:a aac -b:a 128k 
  
         -f mp4 -movflags +faststart  output.mp4

  EDIT I

  Here is a link to the audio/video input files referenced in the above command.