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• Boosting the video transcoding time with fluent-FFMPEG in cloud functions

  6 juillet 2022, par Jaisurya Narayanan

  I am trying to convert a webm video to mp4 format recorded using MediaRecorder API.I am using fluent-ffmpeg. Once the file has been uploaded to storage as webm , we will trigger a cloud function that will do the video transcoding. To provide source stream for ffmpeg, am passing the google bucket url as a source url.
The conversion works fine, but the problem that conversion time is very slower that it is taking 10 mins or more for longer(20-30 mins) and hd quality videos.

  


  Due to this the cloud function max time out gets reached . Am using 2nd generation cloud functions ,i know that we can increase the max time out time upto 1 hour , but i feel it is not optimised way of handling this.Any help regarding the above issue on how to optimise conversion time would be highly appreciated.

  


  I will attach the code that does the transcoding

  


  


  


  import FfmpegCommand from 'fluent-ffmpeg';
import {  path } from '@ffmpeg-installer/ffmpeg';
FfmpegCommand.setFfmpegPath(path);

function transcodeToMp4(sourceUrl,gcsDestFile){
return new Promise((resolve, reject) => {
        FfmpegCommand({source : sourceUrl}) // sourceUrl will be google bucket url
            .outputOptions('-c:v copy')
            .outputOptions('-b:a 1300k')
            .outputOptions('-f mp4')
            .outputOptions('-preset ultrafast')
            .outputOptions('-movflags frag_keyframe+empty_moov')
            .pipe(gcsFile.createWriteStream(),{end: true})
            .on('finish',()=>{
             resolve(success);
             })
            .on('error',(err)=>{
             reject(err);
             });
});

}

  


  


  



  Thanks in Advance..

  


• Video Concat using ffmpeg [closed]

  17 juin 2022, par Milan K Jain

  ffmpeg -i url1 -i url2 -i url3 -i url4 -filter_complex "[0:v:0]scale=1920:1080[c1] ; [1:v:0]scale=1920:1080[c2] ; [2:v:0]scale=1920:1080[c3] ; [3:v:0]scale=1920:1080[c4], [c1] [0:a:0] [c2] [1:a:0] [c3] [2:a:0] [c4] [3:a:0] concat=n=4:v=1:a=1 [v] [a]" -map "[v]" -map "[a]" /Users/myname/Downloads/f1-2017-07-12.mp4 -y

  


  In Place of url I want to give link U get from after storing my video in amazon s3 bucket
Someone pls help

  


• Format video to upload on instagram API (Nodejs)

  6 octobre 2022, par Rafael de Carvalho

  I'm trying to automate the process of posting photos and videos on instagram but I constantly get errors when uploading to instagram.

  


  I will leave a video duration error here but several others happen, I need to follow the following requirements :

  


  

  • Container : MOV or MP4 (MPEG-4 Part 14), no edit lists, atom moov in front of file

  


  • Audio codec : AAC, 48 kHz maximum sampling rate, 1 or 2 channel (mono or stereo)

  


  • Video codec : HEVC or H.264, progressive scan, closed GOP, 4:2:0 chroma subsampling

  


  • Frame rate : from 23 to 60 FPS

  


  • photo size :

    

    • Maximum columns (horizontal pixels) : 1,920

    


    • Minimum aspect ratio [columns/rows] : 4/5

    


    • Maximum aspect ratio [columns/rows] : 9/16

    


    


  


  • Video bitrate : 5Mbps maximum VBR

  


  • Audio bitrate : 128 kbps

  


  • Duration : maximum 60 seconds and minimum 3 seconds

  


  • File size : max 100 MB

  


  


  My code :

  


  import { S3 } from 'aws-sdk';
import { IgApiClient } from 'instagram-private-api';
import fs from 'fs';

const s3 = new S3();
const ig = new IgApiClient();
const bucket = 'posts';
const { INSTA_USER, INSTA_PASS } = process.env;

ig.state.generateDevice(INSTA_USER);

export const main = async () => {
  try {
    await ig.account.login(INSTA_USER, INSTA_PASS);

    const { Contents } = await s3.listObjectsV2({ Bucket: bucket, MaxKeys: 2, Prefix: 'memes/geral' }).promise();

    const files = await Promise.all(Contents.map(async ({ Key }) => {
      const file = await s3.getObject({
        Bucket: bucket,
        Key,
      }).promise();

      return file.Body;
    }));

    const publishResult = await ig.publish.video({
      video: files[0],
      coverImage: await fs.readFileAsync("../../src/assets/cover.png")
    });

    console.dir({ publishResult }, { depth: null })
  } catch (error) {
    console.error(error);
    throw error;
  }
}


  


  When I get a file from s3, it comes in the following format.
I'm taking the content of the body property and put it in the video property of the publish method.
Is it right ?
I also tried to save the file with fs.writeFile and dps use readFileSync like in the example but it also gave the same error.

  


  {
    AcceptRanges: 'bytes',
    LastModified: 2022-08-04T23:15:24.000Z,
    ContentLength: 3252472,
    ETag: '"c491cfe2fb5bc29777fc34391fc1d56a"',
    ContentType: 'application/octet-stream',
    Body: Buffer(3252472) [Uint8Array] [
        0,   0,   0,  32, 102, 116, 121, 112, 105, 115, 111, 109,
        0,   0,   2,   0, 105, 115, 111, 109, 105, 115, 111,  50,
       97, 118,  99,  49, 109, 112,  52,  49,   0,   0, 209,   0,
      109, 111, 111, 118,   0,   0,   0, 108, 109, 118, 104, 100,
        0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
        0,   0,   3, 232,   0,   0, 250,  17,   0,   1,   0,   0,
        1,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
        0,   1,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
        0,   0,   0,   0,
      ... 3252372 more items
    ]
  }


  


  Error :

  


  {
    "errorMessage": "POST /api/v1/media/upload_finish/?video=1 - 400 Bad Request; server processing error: VideoSourceDurationCheckException",
    "errorType": "IgUploadVideoError",
    "stackTrace": [
        "IgUploadVideoError: POST /api/v1/media/upload_finish/?video=1 - 400 Bad Request; server processing error: VideoSourceDurationCheckException",
        "    at C:\\Users\\User\\Desktop\\dev\\Insta\\.webpack\\service\\src\\functions\\webpack:\\instagram-private-api\\dist\\services\\publish.service.js:26:1",  
        "    at tryCatcher (C:\\Users\\User\\Desktop\\dev\\Insta\\.webpack\\service\\src\\functions\\webpack:\\bluebird\\js\\release\\util.js:16:1)"
}


  


  when I try to post a video under 60 seconds (apparently within the requirements) :

  


  {
    "errorMessage": "POST /api/v1/media/configure/?video=1 - 403 Forbidden; ",
    "errorType": "IgConfigureVideoError",
    "stackTrace": [
        "IgConfigureVideoError: POST /api/v1/media/configure/?video=1 - 403 Forbidden; ",
        "    at PublishService.video (C:\\Users\\User\\Desktop\\dev\\Insta\\.webpack\\service\\src\\functions\\webpack:\\instagram-private-api\\dist\\services\\publish.service.js:123:1)",        
        "    at C:\\Users\\User\\Desktop\\dev\\Insta\\.webpack\\service\\src\\functions\\webpack:\\src\\functions\\cronFreefireMemes.js:71:31",
        "    at async Promise.all (index 1)",
        "    at main (C:\\Users\\User\\Desktop\\dev\\Insta\\.webpack\\service\\src\\functions\\webpack:\\src\\functions\\cronFreefireMemes.js:47:5)"
    ]
}


  


  I know that the error above is happening because of the size of the video which is longer than 60 seconds.

  


  But I would like to know if there is any way I can format any video to fit the instagram requirements.

  


  Any nodejs library ?