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14d3270f C |
1 | import * as ffmpeg from 'fluent-ffmpeg' |
2 | ||
3 | import { CONFIG } from '../initializers' | |
4 | import { VideoResolution } from '../../shared/models/videos/video-resolution.enum' | |
5 | ||
6 | function getVideoFileHeight (path: string) { | |
7 | return new Promise<number>((res, rej) => { | |
8 | ffmpeg.ffprobe(path, (err, metadata) => { | |
9 | if (err) return rej(err) | |
10 | ||
11 | const videoStream = metadata.streams.find(s => s.codec_type === 'video') | |
12 | return res(videoStream.height) | |
13 | }) | |
14 | }) | |
15 | } | |
16 | ||
17 | function getDurationFromVideoFile (path: string) { | |
18 | return new Promise<number>((res, rej) => { | |
19 | ffmpeg.ffprobe(path, (err, metadata) => { | |
20 | if (err) return rej(err) | |
21 | ||
22 | return res(Math.floor(metadata.format.duration)) | |
23 | }) | |
24 | }) | |
25 | } | |
26 | ||
164174a6 | 27 | function generateImageFromVideoFile (fromPath: string, folder: string, imageName: string, size: string) { |
14d3270f C |
28 | const options = { |
29 | filename: imageName, | |
30 | count: 1, | |
31 | folder | |
32 | } | |
33 | ||
34 | if (size !== undefined) { | |
35 | options['size'] = size | |
36 | } | |
37 | ||
38 | return new Promise<string>((res, rej) => { | |
39 | ffmpeg(fromPath) | |
40 | .on('error', rej) | |
41 | .on('end', () => res(imageName)) | |
42 | .thumbnail(options) | |
43 | }) | |
44 | } | |
45 | ||
46 | type TranscodeOptions = { | |
47 | inputPath: string | |
48 | outputPath: string | |
49 | resolution?: VideoResolution | |
50 | } | |
51 | ||
52 | function transcode (options: TranscodeOptions) { | |
53 | return new Promise<void>((res, rej) => { | |
54 | let command = ffmpeg(options.inputPath) | |
55 | .output(options.outputPath) | |
56 | .videoCodec('libx264') | |
57 | .outputOption('-threads ' + CONFIG.TRANSCODING.THREADS) | |
58 | .outputOption('-movflags faststart') | |
a6218a0b | 59 | // .outputOption('-crf 18') |
14d3270f C |
60 | |
61 | if (options.resolution !== undefined) { | |
a6218a0b | 62 | const size = `?x${options.resolution}` // '?x720' for example |
14d3270f C |
63 | command = command.size(size) |
64 | } | |
65 | ||
66 | command.on('error', rej) | |
67 | .on('end', res) | |
68 | .run() | |
69 | }) | |
70 | } | |
71 | ||
72 | // --------------------------------------------------------------------------- | |
73 | ||
74 | export { | |
75 | getVideoFileHeight, | |
76 | getDurationFromVideoFile, | |
77 | generateImageFromVideoFile, | |
78 | transcode | |
79 | } |