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14d3270f C |
1 | import * as Promise from 'bluebird' |
2 | import * as ffmpeg from 'fluent-ffmpeg' | |
3 | ||
4 | import { CONFIG } from '../initializers' | |
5 | import { VideoResolution } from '../../shared/models/videos/video-resolution.enum' | |
6 | ||
7 | function getVideoFileHeight (path: string) { | |
8 | return new Promise<number>((res, rej) => { | |
9 | ffmpeg.ffprobe(path, (err, metadata) => { | |
10 | if (err) return rej(err) | |
11 | ||
12 | const videoStream = metadata.streams.find(s => s.codec_type === 'video') | |
13 | return res(videoStream.height) | |
14 | }) | |
15 | }) | |
16 | } | |
17 | ||
18 | function getDurationFromVideoFile (path: string) { | |
19 | return new Promise<number>((res, rej) => { | |
20 | ffmpeg.ffprobe(path, (err, metadata) => { | |
21 | if (err) return rej(err) | |
22 | ||
23 | return res(Math.floor(metadata.format.duration)) | |
24 | }) | |
25 | }) | |
26 | } | |
27 | ||
164174a6 | 28 | function generateImageFromVideoFile (fromPath: string, folder: string, imageName: string, size: string) { |
14d3270f C |
29 | const options = { |
30 | filename: imageName, | |
31 | count: 1, | |
32 | folder | |
33 | } | |
34 | ||
35 | if (size !== undefined) { | |
36 | options['size'] = size | |
37 | } | |
38 | ||
39 | return new Promise<string>((res, rej) => { | |
40 | ffmpeg(fromPath) | |
41 | .on('error', rej) | |
42 | .on('end', () => res(imageName)) | |
43 | .thumbnail(options) | |
44 | }) | |
45 | } | |
46 | ||
47 | type TranscodeOptions = { | |
48 | inputPath: string | |
49 | outputPath: string | |
50 | resolution?: VideoResolution | |
51 | } | |
52 | ||
53 | function transcode (options: TranscodeOptions) { | |
54 | return new Promise<void>((res, rej) => { | |
55 | let command = ffmpeg(options.inputPath) | |
56 | .output(options.outputPath) | |
57 | .videoCodec('libx264') | |
58 | .outputOption('-threads ' + CONFIG.TRANSCODING.THREADS) | |
59 | .outputOption('-movflags faststart') | |
a6218a0b | 60 | // .outputOption('-crf 18') |
14d3270f C |
61 | |
62 | if (options.resolution !== undefined) { | |
a6218a0b | 63 | const size = `?x${options.resolution}` // '?x720' for example |
14d3270f C |
64 | command = command.size(size) |
65 | } | |
66 | ||
67 | command.on('error', rej) | |
68 | .on('end', res) | |
69 | .run() | |
70 | }) | |
71 | } | |
72 | ||
73 | // --------------------------------------------------------------------------- | |
74 | ||
75 | export { | |
76 | getVideoFileHeight, | |
77 | getDurationFromVideoFile, | |
78 | generateImageFromVideoFile, | |
79 | transcode | |
80 | } |