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• Use OpenH264 instead of libx264 in ffmpeg ?

  26 août 2020, par MING

  I use node-fluent-ffmpeg module to call ffmpeg.exe in my node.js app

  


  How to use OpenH264 when calling ffmpeg.exe ?

  


  Do I need to recompile ffmpeg ?

  


  But compiling ffmpeg looks complicated...

  


  The actual code is probably like this

  


  var FfmpegCommand = require('fluent-ffmpeg');
var FFMPEG_PATH = "C:/ffmpeg/bin/ffmpeg.exe" // binary file
FfmpegCommand.setFfmpegPath(FFMPEG_PATH)

FfmpegCommand("dog.webm", {})
    .videoCodec('libx264')
    // command line 
    // .addOutputOption([
    //     '-threads 8'
    // ])
    .on('start', function (commandLine) {
        // Actual ffmpeg command
        // ffmpeg -i C:\Users\ming\Pictures\WEBCAMCAPTURE\dog.webm -y -vcodec libx264 C:\Users\ming\Pictures\WEBCAMCAPTURE\dog_x264.mp4
        console.log('command' + commandLine)
    })
    .on('progress', function (progress) {
        console.log('Processing: ' + progress.percent + '% done')
    })
    .on('end', function () {
        console.log('Finished')
    })
    .save("dog_x264.mp4")



  


  English isn’t my first language, so please excuse any mistakes.

  


• How can I render frames decoded by FFmpeg using hardware decoding with D3D11 ?

  14 juin 2024, par mercuric taylor

  I have completed the process of decoding a video frame using FFmpeg. The format of the decoded frame is AV_PIX_FMT_NV12. Now, I want to render this frame to the screen using D3D11. My questions are :

  


  

  1. What is the equivalent concept in D3D11 for a decoded frame ? Is it a texture ?

  


  2. I have seen many solutions that convert NV12 data to RGB, but it seems that DX11 does not require this conversion anymore.

  


  3. I just want to display this frame, and since my frame is on the GPU, is there a more convenient way to render directly on the GPU without copying ?

  


  


  Please forgive my not-so-good English. Can anyone provide a reference example ?

  


  I have already referenced this open-source project. texthttps://github.com/balapradeepswork/D3D11NV12Rendering/tree/master/D3D11NV12Rendering
But I don't understand it very well.
Since I don't use dx11 to make game, just for show video, I am looking forward for a more easy solution. It has worried me for weeks, can anyone give me some advice(even good tutorial, some I can found is too old). Thanks sincerely !

  


• vvcdec : add parameter parser for sps, pps, ph, sh

  28 décembre 2023, par Nuo Mi

  vvcdec : add parameter parser for sps, pps, ph, sh
  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/vvc_ps.c
  • [DH] libavcodec/vvc/vvc_ps.h
  • [DH] libavcodec/vvc/vvcdec.h