Created
September 14, 2018 21:54
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extract audio in MP3 format from an MP4 file.
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| /** | |
| * @private | |
| */ | |
| extractAudioFromMP4_(paths) { | |
| return new Promise((resolve, reject) => { | |
| /* | |
| for some reason, this did not work: | |
| const binaries = require('ffmpeg-binaries'); | |
| const ffmpegPath = binaries.ffmpegPath(); <-- throws an exception | |
| so i had to assign the path explicitly.. | |
| */ | |
| const ffmpegPath = 'C:\\Projects\\mp3converterNodeJs\\node_modules\\ffmpeg-binaries\\bin\\ffmpeg.exe'; | |
| ffmpeg(paths.filePath) | |
| .setFfmpegPath(ffmpegPath) | |
| .format('mp3') | |
| .audioBitrate(160) | |
| .on('progress', (progress) => { | |
| }) | |
| .output( | |
| fs.createWriteStream( | |
| path.join(paths.folderPath, sanitize(paths.fileTitle)))) | |
| .on('end', () => { | |
| resolve(); | |
| }) | |
| .run(); | |
| }); | |
| } |
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