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• FFMPEG live webcam output on VLC, getting delay of 7-8 seconds output on VLC [on hold]

  6 juin 2016, par Smtiesh Tamboli

  I am new to FFMPEG, I am trying to render webcam output on VLC using FFMPEG.

  I used below command

  ffmpeg -re -f dshow -i video="Integrated Webcam" -c:v copy -bsf:v h264_mp4toannexb -vcodec libx264 -f mpegts udp ://127.0.0.1:9000

  On VLC, I am using Network Stream to play video

  udp ://@:9000

  While playing I am getting delay of 7 to 8 seconds on VLC.

  how to view live webcam output using FFMPEG on VLC without delay ?

  Thank You.

• How to make a video which can play/loop infinite times using FFMPEG command in Android ?

  4 juin 2020, par Mit Shah

  Here are some details : I have a main video and I want a view (gif or video) on it which plays infinite times till video ends. Here is my current code snippet which executes successfully which plays my overlay video one time only.

  



  cmd = new String[]{"-y", "-i", String.valueOf(mVideoPath), "-i", tempVideoPath, "-filter_complex", overlay.toString(), "-codec:a", "copy", "-preset", "ultrafast", String.valueOf(file)};


  



  Where tempVideoPath is the path of my overlay video.

  


• How to overlay two audio files Node JS FFmpeg

  27 avril 2023, par Markusha Boec

  My code works only once correctly and starts to work correctly only after I restart my program. The first time the code outputs the correct audio, which is superimposed one on top of the other, and the second time only one audio with a duration of 15 seconds. I'm trying to get two audio files to help Node.js with FFMPEG. Do you have any ideas how to fix it ? My code is shown below.

  


  


  


  async songMerge(bg_id, text) {
    const bgMusic = await this.airtable
      .table("BackgroundMusic")
      .select({ view: "View", filterByFormula: `ID = '${bg_id}'` })
      .firstPage();
    if (!bgMusic.length) throw new Error("is not found");

    const result = await fetch(
      `https://api.elevenlabs.io/v1/text-to-speech/VR6AewLTigWG4xSOukaG`,
      {
        method: "POST",
        headers: {
          accept: "audio/mpeg",
          "xi-api-key": "token",
          "Content-Type": "application/json",
        },
        body: JSON.stringify({
          text,
          voice_settings: {
            stability: 0,
            similarity_boost: 0,
          },
        }),
      }
    );

    const audioBuffer = await result.arrayBuffer();
    const filePath = path.join(__dirname, "../../../", "audio.mp3");

    await fs.writeFileSync(filePath, Buffer.from(audioBuffer));

    const test = await fetch(`${bgMusic[0].fields.AudioLink}`);
    const audioBufferr = await test.arrayBuffer();

    const filePathh = path.join(__dirname, "../../../", "test.mp3");
    await fs.writeFileSync(filePathh, Buffer.from(audioBufferr));

    await mergeAudio(filePathh, filePath);
  }

  


  


  



  And the merge Audio function :

  


  async function mergeAudio(bgMusic, path) {
  return await command
    .addInput(path)
    .addInput(bgMusic)
    .complexFilter([
      {
        filter: "amix",
        inputs: ["0:0", "1:0"],
      },
    ])
    .outputOptions("-y") // add this line to overwrite the output file
    .output(`./overlayed.mp3`)
    .setStartTime("00:00:00")
    .setDuration("15")
    .on("error", function (err) {
      console.log(err);
    })
    .on("end", function () {
      return "ok";
    })
    .run();
}