在纯节点 js 中将 mp4 或 Avi 转换为 m3u8

Question

I am searching a way to convert a mp4 or an.avi to.m3u8 in pure node js (firebase cloud function). Do you have ideas?

Thank's, but I tried that:

const ffmpegInstaller = require('@ffmpeg-installer/ffmpeg');
const ffmpeg = require('fluent-ffmpeg');
ffmpeg.setFfmpegPath(ffmpegInstaller.path);
const ffmpeg_static = require('ffmpeg-static');
var cmd = ffmpeg('./flir_20191202T174341.mp4')
    .setFfmpegPath(ffmpeg_static.path)
    .videoBitrate(1024)
    .videoCodec('divx')
    .format('m3u8')
    .on('end', () => {
        // ...
    })
    .on('error', err => {
        console.error(err);
    })
    .save('./file-out.m3u8');
console.log('Hello !');
console.log(cmd); 

And I have this error:

Error: Cannot find ffmpeg
at /Users/jeremy/Dev/ssv-api/node_modules/fluent-ffmpeg/lib/processor.js:136:22
at FfmpegCommand.proto._getFfmpegPath (/Users/jeremy/Dev/ssv-api/node_modules/fluent-ffmpeg/lib/capabilities.js:90:14)
at FfmpegCommand.proto._spawnFfmpeg (/Users/jeremy/Dev/ssv-api/node_modules/fluent-ffmpeg/lib/processor.js:132:10)
at FfmpegCommand.proto.availableFormats.proto.getAvailableFormats (/Users/jeremy/Dev/ssv-api/node_modules/fluent-ffmpeg/lib/capabilities.js:517:10)
at /Users/jeremy/Dev/ssv-api/node_modules/fluent-ffmpeg/lib/capabilities.js:568:14
at nextTask (/Users/jeremy/Dev/ssv-api/node_modules/async/dist/async.js:4576:27)
at Object.waterfall (/Users/jeremy/Dev/ssv-api/node_modules/async/dist/async.js:4587:9)
at Object.awaitable [as waterfall] (/Users/jeremy/Dev/ssv-api/node_modules/async/dist/async.js:208:32)
at FfmpegCommand.proto._checkCapabilities (/Users/jeremy/Dev/ssv-api/node_modules/fluent-ffmpeg/lib/capabilities.js:565:11)
at /Users/jeremy/Dev/ssv-api/node_modules/fluent-ffmpeg/lib/processor.js:298:14

Any ideas?

Thanks in advance.

Jérémy.

Answer 1

Found this answer: https://stackoverflow.com/a/42777596/8006046 . It shows how you can run FFmpeg in the firebase cloud. You can replace 'path_or_readstream.mp4' with either the path to the file you want to convert, or, which is more probable in a cloud function, you could pass the readable stream with the file you want to convert.

const ffmpeg = require('fluent-ffmpeg');
const ffmpeg_static = require('ffmpeg-static');

var cmd = ffmpeg('path_or_readstream.mp4')
  .setFfmpegPath(ffmpeg_static.path)
  .videoBitrate(1024)
  .videoCodec('divx')
  .format('m3u8')
  .on('end', () => {
    // ...
  })
  .on('error', err => {
    console.error(err);
  })
  .save('/tmp/file-out.m3u8');