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0c9668f7 C |
1 | import { FfprobeData } from 'fluent-ffmpeg' |
2 | import { CONFIG } from '@server/initializers/config' | |
3 | import { VIDEO_TRANSCODING_FPS } from '@server/initializers/constants' | |
4 | import { getMaxBitrate } from '@shared/core-utils' | |
5 | import { | |
6 | ffprobePromise, | |
7 | getAudioStream, | |
8 | getMaxAudioBitrate, | |
9 | getVideoStream, | |
10 | getVideoStreamBitrate, | |
11 | getVideoStreamDimensionsInfo, | |
12 | getVideoStreamFPS | |
13 | } from '@shared/ffmpeg' | |
14 | ||
15 | export async function canDoQuickTranscode (path: string, existingProbe?: FfprobeData): Promise<boolean> { | |
16 | if (CONFIG.TRANSCODING.PROFILE !== 'default') return false | |
17 | ||
18 | const probe = existingProbe || await ffprobePromise(path) | |
19 | ||
20 | return await canDoQuickVideoTranscode(path, probe) && | |
21 | await canDoQuickAudioTranscode(path, probe) | |
22 | } | |
23 | ||
24 | export async function canDoQuickAudioTranscode (path: string, probe?: FfprobeData): Promise<boolean> { | |
25 | const parsedAudio = await getAudioStream(path, probe) | |
26 | ||
27 | if (!parsedAudio.audioStream) return true | |
28 | ||
29 | if (parsedAudio.audioStream['codec_name'] !== 'aac') return false | |
30 | ||
31 | const audioBitrate = parsedAudio.bitrate | |
32 | if (!audioBitrate) return false | |
33 | ||
34 | const maxAudioBitrate = getMaxAudioBitrate('aac', audioBitrate) | |
35 | if (maxAudioBitrate !== -1 && audioBitrate > maxAudioBitrate) return false | |
36 | ||
37 | const channelLayout = parsedAudio.audioStream['channel_layout'] | |
38 | // Causes playback issues with Chrome | |
39 | if (!channelLayout || channelLayout === 'unknown' || channelLayout === 'quad') return false | |
40 | ||
41 | return true | |
42 | } | |
43 | ||
44 | export async function canDoQuickVideoTranscode (path: string, probe?: FfprobeData): Promise<boolean> { | |
45 | const videoStream = await getVideoStream(path, probe) | |
46 | const fps = await getVideoStreamFPS(path, probe) | |
47 | const bitRate = await getVideoStreamBitrate(path, probe) | |
48 | const resolutionData = await getVideoStreamDimensionsInfo(path, probe) | |
49 | ||
50 | // If ffprobe did not manage to guess the bitrate | |
51 | if (!bitRate) return false | |
52 | ||
53 | // check video params | |
54 | if (!videoStream) return false | |
55 | if (videoStream['codec_name'] !== 'h264') return false | |
56 | if (videoStream['pix_fmt'] !== 'yuv420p') return false | |
57 | if (fps < VIDEO_TRANSCODING_FPS.MIN || fps > VIDEO_TRANSCODING_FPS.MAX) return false | |
58 | if (bitRate > getMaxBitrate({ ...resolutionData, fps })) return false | |
59 | ||
60 | return true | |
61 | } |