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• How to host a react.js ssr on vercel ?

  2 janvier 2024, par UltimateSheepConfusedAtCode

  I want to host a react.js server side rendering because of ffmpeg killing me with SharedArrayBuffer is not defined

  


  I've tried so many hosting service provider like firebase but now I want to host it to Vercel but I don't know how to make it works with react ssr. Can anyone help me ?

  


  When I run 'ssr' command in my machine it's work and ffmpeg is not throwing 'bad memory' or 'SharedArrayBuffer is not defined' but when I run it in vercel build command it stucks but the index.js/server.js is running I know because the main script is running and won't stop so the build is stuck but any solution ? I've search the problem but I guess nobody haven't asked this yet

  


  

  


  and this a code of package.json

  


  {
  "name": "ultimatesheep-vidreverse",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
    "@babel/preset-env": "^7.18.10",
    "@babel/preset-react": "^7.18.6",
    "@babel/register": "^7.18.9",
    "@ffmpeg/core": "^0.11.0",
    "@ffmpeg/ffmpeg": "^0.11.0",
    "@testing-library/jest-dom": "^5.16.5",
    "@testing-library/react": "^13.3.0",
    "@testing-library/user-event": "^13.5.0",
    "bootstrap": "^5.2.0",
    "cors": "^2.8.5",
    "ignore-styles": "^5.0.1",
    "react": "^18.2.0",
    "react-bootstrap": "^2.5.0",
    "react-dom": "^18.2.0",
    "react-scripts": "5.0.1",
    "uuid": "^8.3.2",
    "web-vitals": "^2.1.4"
  },
  "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test",
    "eject": "react-scripts eject",
    "ssr": "npm run build && node backend/index.js",
    "deploy": "npm run build && firebase deploy",
    "git" : "git add . && git commit -m 'ahawdaw' && git push -u origin main"
  },
  "eslintConfig": {
    "extends": [
      "react-app",
      "react-app/jest"
    ]
  },
  "browserslist": {
    "production": [
      ">0.2%",
      "not dead",
      "not op_mini all"
    ],
    "development": [
      "last 1 chrome version",
      "last 1 firefox version",
      "last 1 safari version"
    ]
  },
  "externals": {
    "react": "React"
  },
  "description": "This project was bootstrapped with [Create React App](https://github.com/facebook/create-react-app).",
  "main": "backend/index.js",
  "keywords": [],
  "author": "",
  "license": "ISC"
}


  


  

  


• mmaldec : Add mpeg2 decoding support

  14 avril 2016, par Julian Scheel

  mmaldec : Add mpeg2 decoding support
  Register mmaldec as mpeg2 decoder. Supporting mpeg2 in mmaldec is just a
  
  matter of setting the correct MMAL_ENCODING on the input port. To ease the
  
  addition of further supported mmal codecs a macro is introduced to generate
  
  the decoder and decoder class structs.
  Signed-off-by : Julian Scheel <julian@jusst.de>
  
  Signed-off-by : wm4 <nfxjfg@googlemail.com>
  
  Signed-off-by : Anton Khirnov <anton@khirnov.net>
  

  • [DBH] Changelog
  • [DBH] configure
  • [DBH] libavcodec/Makefile
  • [DBH] libavcodec/allcodecs.c
  • [DBH] libavcodec/mmaldec.c
  • [DBH] libavcodec/version.h

• Out-of-range channels being referenced when decoding AAC AUs

  3 février 2017, par SoxInCincy

  As part of a proprietary data stream, I have variable length AUs of raw AAC encoded data. The data is single channel and I have the configuration information on how the data was encoded. I need to decode this data to PCM for playback. Right now, I am trying to do so using ffmpeg’s libavcodec, but to no avail. The error I get from ffmpeg(libavcodec) when trying to decode is "channel element 3.7 is not allocated." As I am trying to decode single channel data, have the context set as single channel and channel layout of mono, I am not entirely sure why the decoder is looking for channels beyond 1.

  Can anyone point me in the right direction ? I appreciate any help !

  Prototype Code :

  //Initialize the decoder before sending AUs
  
  bool AAC_Decoder::initialize()
  
  {
  
      //register codecs
  
      avcodec_register_all();
  
      c=NULL;
  
      //attempt to find AAC decoder
  
      codec = avcodec_find_decoder(AV_CODEC_ID_AAC);
  
      if (codec==NULL)
  
      {
  
          std::cout<<"Could Not Find Codec"</setup codec context using known information about the stream
  
      c=avcodec_alloc_context3(codec);
  
      c->bit_rate=32000;
  
      c->channels=1;
  
      c->channel_layout=AV_CH_LAYOUT_MONO;
  
      c->sample_rate=16000;
  
  
  
      //attempt to open the codec using the prescribed context and no options
  
      if (avcodec_open2(c,codec,NULL)<0)
  
      {
  
          std::cout<<"Could Not Open Codec"</decode a single AU sent in a buffer
  
  bool AAC_Decoder::decode(uint8_t *sampleBuffer, uint32_t size)
  
  {
  
      //setup single AU packet
  
      AVPacket avPacket;
  
      av_init_packet(&avPacket);
  
      AVFrame * frame;
  
      pkt.size = size;
  
      pkt.data = sampleBuffer;
  
  
  
      //attempt to setup a frame
  
      frame = av_frame_alloc();
  
      if (!frame)
  
      {
  
          std::cout<<"Could not Allocate Frame"</attempt to decode the frame
  
      int gotFrame =0;
  
      int len = 0;
  
      len = avcodec_decode_audio4(c,frame,&gotFrame,&pkt);
  
  
  
      if (len < 0)//could not decode frame.  Currently getting -22 as response
  
      {
  
          std::cout<<"decoding error"</verify the frame was decoded.  
  
      {
  
          std::cout<<"don't have frame"</successfully decoded.  for now, cout the size as verification.
  
      {
  
          int data_size = av_samples_get_buffer_size(NULL, c->channels, frame->nb_samples, c->sample_fmt, 1);
  
          std::cout</free frame and return
  
      av_frame_free(&frame);
  
      return true;
  
  }