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• Automator Service to Run Bash Script to Convert Video

  1er mars 2017, par mike varela

  I’m having the hardest time understanding variables in automator. In essence, I’m attempting to right click on a file and perform a bash script that I write. The issue I have is the bash script takes an input filename and output filename and ideally I want them to be the same, except for the output to be appended with something to indicate it’s converted.

  I’m using FFMBC (a derivative of FFMPEG)

  my script is

  ffmbc -i input.mov -vcodec prores -profile proxy -pix_fmt yuv422p10le -acodec pcm_s24le output.mov

  I’d like to change the output.mov to filename-proxy.mov

  So frustrated at the moment.

• Record web browser with sound as a service on linux server with puppeteer

  12 septembre 2021, par NA GUY

  I'm trying to build a service on a linux server to record video a web browser with its sound.

  


  The first step I did with the source code below (using xvfb, puppeteer and ffmpeg) to record successfully.

  


  However when I do a recording with different processes at a same time (different websites) the audio gets mixed up between the processes.
I know this is happening because I used the same default audio output for all processes.

  


  The question is : how can I record the browser with sound that doesn't get mixed up between different processes ?

  


  My sample code below :

  


  var Xvfb = require('xvfb');
var puppeteer = require('puppeteer');
const { spawn, spawnSync } = require('child_process');

async function record() {

    var xvfb = new Xvfb({
        displayNum: 99,
        reuse: false,
        xvfb_args: [
            "-screen", "0", "1920x1080x24",
            "-ac",
            "-nolisten", "tcp",
            "-dpi", "96",
            "+extension", "RANDR"
        ]
    });

    xvfb.startSync();

    var browser = await puppeteer.launch({
        headless: false,
        defaultViewport: null,
        ignoreDefaultArgs: [
            "--mute-audio",
            "--enable-automation"
        ],
        args: [
            "--use-fake-ui-for-media-stream",
            "--window-size=1920,1080",
            "--start-fullscreen"
        ]
    });
    const page = await browser.newPage();

    var url = "http://www.noiseaddicts.com/free-samples-mp3/?id=2544";
    await page.goto(url);
    await page.click('span.map_play');

    var time = new Date().getTime();

    var options = [
        "-video_size", "1920x1080",
        "-framerate", "30",
        "-f", "x11grab",
        "-draw_mouse", "0",
        "-i", ":99",

        "-f", "pulse",
        "-ac", "2",
        "-i", "1",
        "./output" + time + ".mkv"
    ];

    var cmd = 'ffmpeg';

    var proc = spawn(cmd, options);

    proc.stdout.on('data', function (data) {
        console.log(data);
    });

    proc.stderr.setEncoding("utf8")
    proc.stderr.on('data', function (data) {
        console.log(data);
    });

    proc.on('close', async function () {
        console.log('finished');
        xvfb.stopSync();
    });
}

record();


  


• Revision 1fc0bde675 : Refactor selected partition size coding for rtc This commit makes a refactoring

  21 février 2014, par Jingning Han

  Changed Paths :
   Modify /vp9/encoder/vp9_encodeframe.c

  
   Modify /vp9/encoder/vp9_pickmode.c

  
  
  Refactor selected partition size coding for rtc

  This commit makes a refactoring of the rtc_use_partition. It allows
  the encoder to take a preferred block size for non-RD mode decision.
  The boundary blocks are handled such that smaller block sizes that
  fit in the boundary size will be used instread.

  In rtc mode, the coding performance of speed -6 for pedestrian_1080p
  goes from
  158980 b/f, 38.934 dB, 22721 ms to
  159008 b/f, 40.064 dB, 23721 ms.

  For rtc set, the speed -6 compression performance is improved by
  26%. Still about 2dB behind speed -5 at this point.

  Change-Id : If0944f0880eaf1ad340bc325d97cea8d0f9dd53f