Recherche avancée

Sur d’autres sites (12705)

• Gitlab CI - Combine two docker images into a single stage

  12 mars 2024, par seal.r00t

  I have this gitlab-ci.yaml file. Using this file I execute my k6.io load test from pipeline. Now I need to execute some FFmpeg commands during the run stage, and my question is how do I make the FFmpeg tool available to the run stage. Do I need to grab the image that has FFmpeg and add it next to grafa/k6 or something else ?

  


  default:
  tags:
    - default

workflow:
  name: "$PIPELINE_NAME"

stages:
  - lint
  - setup
  - run
  - teardown

lint:js:
  stage: lint
  image:
    name: tmknom/prettier
    entrypoint:
      - ""
  rules:
    - if: '$CI_PIPELINE_SOURCE == "push"'
      when: always
    - if: '$CI_PIPELINE_SOURCE == "schedule"'
      when: always
  script:
    - prettier --check '**/*.js'

setup:
  stage: setup
  image: alpine
  rules:
    - if: '$CI_PIPELINE_SOURCE == "web"'
      when: always
    - if: '$CI_PIPELINE_SOURCE == "schedule"'
      when: always
  script:
    - echo 'set up!'

run:
  stage: run
  environment:
    name: run
  image:
    name: grafana/k6:latest
    entrypoint: [ "" ]
  artifacts:
    when: always
    paths:
      - summaries/
  rules:
    - if: '$CI_PIPELINE_SOURCE == "web"'
      when: always  # Prevent pipeline run for push event
    - if: '$CI_PIPELINE_SOURCE == "schedule"'
      when: always
  script:
    - ./run.sh

teardown:
  stage: teardown
  image: alpine
  rules:
    - if: '$CI_PIPELINE_SOURCE == "web"'
      when: always
    - if: '$CI_PIPELINE_SOURCE == "schedule"'
      when: always
  script:
    - echo 'tear down!'


  


  I tried adding two name tags under the run stage for using two images but it didn't work and returned a syntax error.

  


  run:
  stage: run
  environment:
    name: run
  image:
    name: grafana/k6:latest
    name: linuxserver/ffmpeg


  


• What's the proper way to use Docker multi-stage builds to copy a package installed with apt ?

  25 décembre 2023, par Leo Jiang

  I have apt-get -y install ffmpeg --no-install-recommends in my dockerfile and it's taking up more than half the image size (500MB). I read somewhere that I can try using Docker multi-stage build to reduce the file size.

  


  Am I supposed to do something like :

  


  FROM node:20.9.0-slim
RUN apt-get -y update \
  && apt-get -y install ffmpeg --no-install-recommends \
  && apt-get clean

FROM node:20.9.0-slim
COPY --from=0 /usr/bin/ffmpeg
COPY --from=0 /usr/bin/ffplay
COPY --from=0 /usr/share/ffmpeg/ffprobe.xsd
COPY --from=0 /usr/share/lintian/overrides/ffmpeg


  


  I ran dpkg -L ffmpeg to see that ffmpeg has 30 files. Am I supposed to copy over all of the files or is just /usr/bin/ffmpeg enough ? If I have to copy all of them, it seems like it'll break easily.

  


• How do ffmpeg child processes differ on windows and linux ? ytdl

  6 mai 2023, par eaglehuntt

  This class method works on linux but does not work on windows. Why is that ? ytdl is a node module called ytdl-core. This is almost line for line what they used in their documentation.

  


  https://github.com/fent/node-ytdl-core/blob/master/example/ffmpeg.js

  


  The biggest difference in my code vs theirs is that I convert the mkv file to an mp4 before closing the process.

  


  I have been looking around the internet and I cannot seem to find anyone with this issue. I am new to child processes and ffmpeg.

  


  static mp4 = async (url, videoQuality, destination) => {
    try {
      const videoInfo = this.#getVideoInfo(url);
      const videoTitle = (await videoInfo).title;

    const tracker = {
      start: Date.now(),
      audio: { downloaded: 0, total: Infinity },
      video: { downloaded: 0, total: Infinity },
      merged: { frame: 0, speed: '0x', fps: 0 },
    };
    
    // Get audio and video streams
    const audio = ytdl(url, { quality: 'highestaudio' })
      .on('progress', (_, downloaded, total) => {
        tracker.audio = { downloaded, total };
      });
    
    
      const video = ytdl(url, { quality: videoQuality })
      .on('progress', (_, downloaded, total) => {
        tracker.video = { downloaded, total };
      })
      .on('error', (error) => {
        console.error('(mp4) An error occurred when attempting to pipe the video stream:', error);
      });

    // Start the ffmpeg child process
    const mkvProcess = cp.spawn(ffmpeg, [
      // Remove ffmpeg's console spamming
      '-loglevel', '8', '-hide_banner',
      // Redirect/Enable progress messages
      '-progress', 'pipe:3',
      // Set inputs
      '-i', 'pipe:4',
      '-i', 'pipe:5',
      // Map audio & video from streams
      '-map', '0:a',
      '-map', '1:v',
      // Keep encoding
      '-c:v', 'copy',
      // Define output file
      `${__dirname}/temp/temp.mkv`,
    ], {
      windowsHide: true,
      stdio: [
        /* Standard: stdin, stdout, stderr */
        'inherit', 'inherit', 'inherit',
        /* Custom: pipe:3, pipe:4, pipe:5 */
        'pipe', 'pipe', 'pipe',
      ],
    });
    mkvProcess.on('close', () => {
      const titleQuality = this.nativeMp4VideoQualityFormats[videoQuality];
      const mp4Process = cp.spawn(ffmpeg, ['-i',`${__dirname}/temp/temp.mkv`,'-c','copy',`${destination}`]);
      
      mp4Process.on('close', () => {
        if (fs.existsSync(`${__dirname}/temp/temp.mkv`)){
          try {
            fs.unlinkSync(`${__dirname}/temp/temp.mkv`);
          }
          catch (error){
            console.log(error)
          }
        };
      })
      mp4Process.on('exit', (code, signal) => {
        if (code !== 0) {
          console.error(`(mp4) The ffmpeg process exited with code ${code} and signal ${signal}.`);
        }
      })
    });
    mkvProcess.on('exit', (code, signal) => {
      if (code !== 0) {
        console.error(`(mkv) The ffmpeg process exited with code ${code} and signal ${signal}.`);
      }
    });
    // Link streams
    // FFmpeg creates the transformer streams and we just have to insert / read data
    mkvProcess.stdio[3].on('data', chunk => {
    
      const lines = chunk.toString().trim().split('\n');
      const args = {};
      for (const l of lines) {
        const [key, value] = l.split('=');
        args[key.trim()] = value.trim();
      }
      tracker.merged = args;
    });
    audio.pipe(mkvProcess.stdio[4]);
    video.pipe(mkvProcess.stdio[5]);
    return true;

    }
    catch {
      console.error('(mp4) An error occurred when attempting to download the video.')
      return false;
    }
  }