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Commit | Line | Data |
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14d3270f | 1 | import * as ffmpeg from 'fluent-ffmpeg' |
053aed43 | 2 | import { readFile, remove, writeFile } from 'fs-extra' |
09209296 | 3 | import { dirname, join } from 'path' |
884d2c39 | 4 | import { FFMPEG_NICE, VIDEO_LIVE, VIDEO_TRANSCODING_ENCODERS } from '@server/initializers/constants' |
5a547f69 | 5 | import { VideoResolution } from '../../shared/models/videos' |
c6c0fa6c C |
6 | import { checkFFmpegEncoders } from '../initializers/checker-before-init' |
7 | import { CONFIG } from '../initializers/config' | |
884d2c39 | 8 | import { computeFPS, getAudioStream, getVideoFileFPS } from './ffprobe-utils' |
26670720 | 9 | import { processImage } from './image-utils' |
6fdc553a | 10 | import { logger } from './logger' |
14d3270f | 11 | |
6b67897e C |
12 | /** |
13 | * | |
14 | * Functions that run transcoding/muxing ffmpeg processes | |
15 | * Mainly called by lib/video-transcoding.ts and lib/live-manager.ts | |
16 | * | |
17 | */ | |
18 | ||
9252a33d C |
19 | // --------------------------------------------------------------------------- |
20 | // Encoder options | |
21 | // --------------------------------------------------------------------------- | |
22 | ||
23 | // Options builders | |
24 | ||
25 | export type EncoderOptionsBuilder = (params: { | |
26 | input: string | |
27 | resolution: VideoResolution | |
28 | fps?: number | |
5a547f69 | 29 | streamNum?: number |
9252a33d C |
30 | }) => Promise<EncoderOptions> | EncoderOptions |
31 | ||
32 | // Options types | |
33 | ||
34 | export interface EncoderOptions { | |
5a547f69 | 35 | copy?: boolean |
9252a33d C |
36 | outputOptions: string[] |
37 | } | |
38 | ||
39 | // All our encoders | |
40 | ||
41 | export interface EncoderProfile <T> { | |
42 | [ profile: string ]: T | |
43 | ||
44 | default: T | |
45 | } | |
46 | ||
47 | export type AvailableEncoders = { | |
48 | [ id in 'live' | 'vod' ]: { | |
5a547f69 | 49 | [ encoder in 'libx264' | 'aac' | 'libfdk_aac' ]?: EncoderProfile<EncoderOptionsBuilder> |
9252a33d C |
50 | } |
51 | } | |
52 | ||
53 | // --------------------------------------------------------------------------- | |
54 | // Image manipulation | |
55 | // --------------------------------------------------------------------------- | |
56 | ||
57 | function convertWebPToJPG (path: string, destination: string): Promise<void> { | |
58 | const command = ffmpeg(path) | |
59 | .output(destination) | |
60 | ||
61 | return runCommand(command) | |
62 | } | |
63 | ||
64 | function processGIF ( | |
65 | path: string, | |
66 | destination: string, | |
f619de0e | 67 | newSize: { width: number, height: number } |
9252a33d | 68 | ): Promise<void> { |
f619de0e C |
69 | const command = ffmpeg(path) |
70 | .fps(20) | |
71 | .size(`${newSize.width}x${newSize.height}`) | |
72 | .output(destination) | |
9252a33d | 73 | |
f619de0e | 74 | return runCommand(command) |
9252a33d C |
75 | } |
76 | ||
26670720 C |
77 | async function generateImageFromVideoFile (fromPath: string, folder: string, imageName: string, size: { width: number, height: number }) { |
78 | const pendingImageName = 'pending-' + imageName | |
79 | ||
14d3270f | 80 | const options = { |
26670720 | 81 | filename: pendingImageName, |
14d3270f C |
82 | count: 1, |
83 | folder | |
84 | } | |
85 | ||
26670720 | 86 | const pendingImagePath = join(folder, pendingImageName) |
6fdc553a C |
87 | |
88 | try { | |
89 | await new Promise<string>((res, rej) => { | |
7160878c | 90 | ffmpeg(fromPath, { niceness: FFMPEG_NICE.THUMBNAIL }) |
6fdc553a C |
91 | .on('error', rej) |
92 | .on('end', () => res(imageName)) | |
93 | .thumbnail(options) | |
94 | }) | |
95 | ||
96 | const destination = join(folder, imageName) | |
2fb5b3a5 | 97 | await processImage(pendingImagePath, destination, size) |
6fdc553a | 98 | } catch (err) { |
d5b7d911 | 99 | logger.error('Cannot generate image from video %s.', fromPath, { err }) |
6fdc553a C |
100 | |
101 | try { | |
62689b94 | 102 | await remove(pendingImagePath) |
6fdc553a | 103 | } catch (err) { |
d5b7d911 | 104 | logger.debug('Cannot remove pending image path after generation error.', { err }) |
6fdc553a C |
105 | } |
106 | } | |
14d3270f C |
107 | } |
108 | ||
daf6e480 C |
109 | // --------------------------------------------------------------------------- |
110 | // Transcode meta function | |
111 | // --------------------------------------------------------------------------- | |
112 | ||
3a149e9f | 113 | type TranscodeOptionsType = 'hls' | 'quick-transcode' | 'video' | 'merge-audio' | 'only-audio' |
536598cf C |
114 | |
115 | interface BaseTranscodeOptions { | |
116 | type: TranscodeOptionsType | |
9252a33d | 117 | |
14d3270f C |
118 | inputPath: string |
119 | outputPath: string | |
9252a33d C |
120 | |
121 | availableEncoders: AvailableEncoders | |
122 | profile: string | |
123 | ||
09209296 | 124 | resolution: VideoResolution |
9252a33d | 125 | |
056aa7f2 | 126 | isPortraitMode?: boolean |
536598cf | 127 | } |
09209296 | 128 | |
536598cf C |
129 | interface HLSTranscodeOptions extends BaseTranscodeOptions { |
130 | type: 'hls' | |
d7a25329 | 131 | copyCodecs: boolean |
536598cf | 132 | hlsPlaylist: { |
4c280004 C |
133 | videoFilename: string |
134 | } | |
14d3270f C |
135 | } |
136 | ||
536598cf C |
137 | interface QuickTranscodeOptions extends BaseTranscodeOptions { |
138 | type: 'quick-transcode' | |
139 | } | |
140 | ||
141 | interface VideoTranscodeOptions extends BaseTranscodeOptions { | |
142 | type: 'video' | |
143 | } | |
144 | ||
145 | interface MergeAudioTranscodeOptions extends BaseTranscodeOptions { | |
146 | type: 'merge-audio' | |
147 | audioPath: string | |
148 | } | |
149 | ||
3a149e9f C |
150 | interface OnlyAudioTranscodeOptions extends BaseTranscodeOptions { |
151 | type: 'only-audio' | |
5c7d6508 | 152 | } |
153 | ||
a1587156 C |
154 | type TranscodeOptions = |
155 | HLSTranscodeOptions | |
3a149e9f C |
156 | | VideoTranscodeOptions |
157 | | MergeAudioTranscodeOptions | |
158 | | OnlyAudioTranscodeOptions | |
159 | | QuickTranscodeOptions | |
536598cf | 160 | |
daf6e480 C |
161 | const builders: { |
162 | [ type in TranscodeOptionsType ]: (c: ffmpeg.FfmpegCommand, o?: TranscodeOptions) => Promise<ffmpeg.FfmpegCommand> | ffmpeg.FfmpegCommand | |
163 | } = { | |
164 | 'quick-transcode': buildQuickTranscodeCommand, | |
165 | 'hls': buildHLSVODCommand, | |
166 | 'merge-audio': buildAudioMergeCommand, | |
167 | 'only-audio': buildOnlyAudioCommand, | |
9252a33d | 168 | 'video': buildx264VODCommand |
daf6e480 C |
169 | } |
170 | ||
171 | async function transcode (options: TranscodeOptions) { | |
9e2b2e76 C |
172 | logger.debug('Will run transcode.', { options }) |
173 | ||
daf6e480 C |
174 | let command = getFFmpeg(options.inputPath) |
175 | .output(options.outputPath) | |
14d3270f | 176 | |
daf6e480 | 177 | command = await builders[options.type](command, options) |
7ed2c1a4 | 178 | |
daf6e480 | 179 | await runCommand(command) |
5ba49f26 | 180 | |
daf6e480 | 181 | await fixHLSPlaylistIfNeeded(options) |
837666fe RK |
182 | } |
183 | ||
9252a33d C |
184 | // --------------------------------------------------------------------------- |
185 | // Live muxing/transcoding functions | |
186 | // --------------------------------------------------------------------------- | |
123f6193 | 187 | |
5a547f69 C |
188 | async function getLiveTranscodingCommand (options: { |
189 | rtmpUrl: string | |
190 | outPath: string | |
191 | resolutions: number[] | |
192 | fps: number | |
193 | deleteSegments: boolean | |
194 | ||
195 | availableEncoders: AvailableEncoders | |
196 | profile: string | |
197 | }) { | |
198 | const { rtmpUrl, outPath, resolutions, fps, deleteSegments, availableEncoders, profile } = options | |
199 | const input = rtmpUrl | |
200 | ||
201 | const command = getFFmpeg(input) | |
c6c0fa6c C |
202 | command.inputOption('-fflags nobuffer') |
203 | ||
204 | const varStreamMap: string[] = [] | |
205 | ||
206 | command.complexFilter([ | |
207 | { | |
208 | inputs: '[v:0]', | |
209 | filter: 'split', | |
210 | options: resolutions.length, | |
211 | outputs: resolutions.map(r => `vtemp${r}`) | |
212 | }, | |
213 | ||
214 | ...resolutions.map(r => ({ | |
215 | inputs: `vtemp${r}`, | |
216 | filter: 'scale', | |
217 | options: `w=-2:h=${r}`, | |
218 | outputs: `vout${r}` | |
219 | })) | |
220 | ]) | |
221 | ||
c6c0fa6c | 222 | command.outputOption('-preset superfast') |
c6c0fa6c | 223 | |
ce4a50b9 C |
224 | addDefaultEncoderGlobalParams({ command }) |
225 | ||
c6c0fa6c C |
226 | for (let i = 0; i < resolutions.length; i++) { |
227 | const resolution = resolutions[i] | |
884d2c39 C |
228 | const resolutionFPS = computeFPS(fps, resolution) |
229 | ||
230 | const baseEncoderBuilderParams = { | |
231 | input, | |
232 | availableEncoders, | |
233 | profile, | |
234 | fps: resolutionFPS, | |
235 | resolution, | |
236 | streamNum: i, | |
237 | videoType: 'live' as 'live' | |
238 | } | |
5a547f69 C |
239 | |
240 | { | |
241 | const builderResult = await getEncoderBuilderResult(Object.assign({}, baseEncoderBuilderParams, { streamType: 'VIDEO' })) | |
242 | if (!builderResult) { | |
243 | throw new Error('No available live video encoder found') | |
244 | } | |
245 | ||
246 | command.outputOption(`-map [vout${resolution}]`) | |
247 | ||
884d2c39 | 248 | addDefaultEncoderParams({ command, encoder: builderResult.encoder, fps: resolutionFPS, streamNum: i }) |
5a547f69 C |
249 | |
250 | logger.debug('Apply ffmpeg live video params from %s.', builderResult.encoder, builderResult) | |
c6c0fa6c | 251 | |
5a547f69 C |
252 | command.outputOption(`${buildStreamSuffix('-c:v', i)} ${builderResult.encoder}`) |
253 | command.addOutputOptions(builderResult.result.outputOptions) | |
254 | } | |
255 | ||
256 | { | |
257 | const builderResult = await getEncoderBuilderResult(Object.assign({}, baseEncoderBuilderParams, { streamType: 'AUDIO' })) | |
258 | if (!builderResult) { | |
259 | throw new Error('No available live audio encoder found') | |
260 | } | |
c6c0fa6c | 261 | |
5a547f69 C |
262 | command.outputOption('-map a:0') |
263 | ||
884d2c39 | 264 | addDefaultEncoderParams({ command, encoder: builderResult.encoder, fps: resolutionFPS, streamNum: i }) |
5a547f69 C |
265 | |
266 | logger.debug('Apply ffmpeg live audio params from %s.', builderResult.encoder, builderResult) | |
267 | ||
268 | command.outputOption(`${buildStreamSuffix('-c:a', i)} ${builderResult.encoder}`) | |
269 | command.addOutputOptions(builderResult.result.outputOptions) | |
270 | } | |
c6c0fa6c C |
271 | |
272 | varStreamMap.push(`v:${i},a:${i}`) | |
273 | } | |
274 | ||
fb719404 | 275 | addDefaultLiveHLSParams(command, outPath, deleteSegments) |
c6c0fa6c C |
276 | |
277 | command.outputOption('-var_stream_map', varStreamMap.join(' ')) | |
278 | ||
c6c0fa6c C |
279 | return command |
280 | } | |
281 | ||
9252a33d | 282 | function getLiveMuxingCommand (rtmpUrl: string, outPath: string, deleteSegments: boolean) { |
c6c0fa6c C |
283 | const command = getFFmpeg(rtmpUrl) |
284 | command.inputOption('-fflags nobuffer') | |
285 | ||
286 | command.outputOption('-c:v copy') | |
287 | command.outputOption('-c:a copy') | |
288 | command.outputOption('-map 0:a?') | |
289 | command.outputOption('-map 0:v?') | |
290 | ||
fb719404 | 291 | addDefaultLiveHLSParams(command, outPath, deleteSegments) |
c6c0fa6c | 292 | |
c6c0fa6c C |
293 | return command |
294 | } | |
295 | ||
31c82cd9 | 296 | async function hlsPlaylistToFragmentedMP4 (hlsDirectory: string, segmentFiles: string[], outputPath: string) { |
3bc68dfd C |
297 | const concatFilePath = join(hlsDirectory, 'concat.txt') |
298 | ||
299 | function cleaner () { | |
300 | remove(concatFilePath) | |
301 | .catch(err => logger.error('Cannot remove concat file in %s.', hlsDirectory, { err })) | |
302 | } | |
303 | ||
304 | // First concat the ts files to a mp4 file | |
31c82cd9 C |
305 | const content = segmentFiles.map(f => 'file ' + f) |
306 | .join('\n') | |
307 | ||
308 | await writeFile(concatFilePath, content + '\n') | |
309 | ||
310 | const command = getFFmpeg(concatFilePath) | |
311 | command.inputOption('-safe 0') | |
312 | command.inputOption('-f concat') | |
b5b68755 | 313 | |
3bc68dfd C |
314 | command.outputOption('-c:v copy') |
315 | command.audioFilter('aresample=async=1:first_pts=0') | |
b5b68755 C |
316 | command.output(outputPath) |
317 | ||
3bc68dfd C |
318 | return runCommand(command, cleaner) |
319 | } | |
b5b68755 | 320 | |
5a547f69 C |
321 | function buildStreamSuffix (base: string, streamNum?: number) { |
322 | if (streamNum !== undefined) { | |
323 | return `${base}:${streamNum}` | |
324 | } | |
325 | ||
326 | return base | |
327 | } | |
328 | ||
14d3270f C |
329 | // --------------------------------------------------------------------------- |
330 | ||
331 | export { | |
9252a33d C |
332 | getLiveTranscodingCommand, |
333 | getLiveMuxingCommand, | |
5a547f69 | 334 | buildStreamSuffix, |
18782242 | 335 | convertWebPToJPG, |
123f6193 | 336 | processGIF, |
14d3270f | 337 | generateImageFromVideoFile, |
536598cf C |
338 | TranscodeOptions, |
339 | TranscodeOptionsType, | |
73c69591 | 340 | transcode, |
daf6e480 | 341 | hlsPlaylistToFragmentedMP4 |
73c69591 C |
342 | } |
343 | ||
344 | // --------------------------------------------------------------------------- | |
345 | ||
9252a33d C |
346 | // --------------------------------------------------------------------------- |
347 | // Default options | |
348 | // --------------------------------------------------------------------------- | |
349 | ||
ce4a50b9 C |
350 | function addDefaultEncoderGlobalParams (options: { |
351 | command: ffmpeg.FfmpegCommand | |
352 | }) { | |
353 | const { command } = options | |
354 | ||
355 | // avoid issues when transcoding some files: https://trac.ffmpeg.org/ticket/6375 | |
356 | command.outputOption('-max_muxing_queue_size 1024') | |
357 | // strip all metadata | |
358 | .outputOption('-map_metadata -1') | |
359 | // NOTE: b-strategy 1 - heuristic algorithm, 16 is optimal B-frames for it | |
360 | .outputOption('-b_strategy 1') | |
361 | // NOTE: Why 16: https://github.com/Chocobozzz/PeerTube/pull/774. b-strategy 2 -> B-frames<16 | |
362 | .outputOption('-bf 16') | |
363 | // allows import of source material with incompatible pixel formats (e.g. MJPEG video) | |
364 | .outputOption('-pix_fmt yuv420p') | |
365 | } | |
366 | ||
5a547f69 C |
367 | function addDefaultEncoderParams (options: { |
368 | command: ffmpeg.FfmpegCommand | |
369 | encoder: 'libx264' | string | |
370 | streamNum?: number | |
371 | fps?: number | |
372 | }) { | |
373 | const { command, encoder, fps, streamNum } = options | |
374 | ||
375 | if (encoder === 'libx264') { | |
376 | // 3.1 is the minimal resource allocation for our highest supported resolution | |
ce4a50b9 | 377 | command.outputOption(buildStreamSuffix('-level:v', streamNum) + ' 3.1') |
5a547f69 C |
378 | |
379 | if (fps) { | |
380 | // Keyframe interval of 2 seconds for faster seeking and resolution switching. | |
381 | // https://streaminglearningcenter.com/blogs/whats-the-right-keyframe-interval.html | |
382 | // https://superuser.com/a/908325 | |
ce4a50b9 | 383 | command.outputOption(buildStreamSuffix('-g:v', streamNum) + ' ' + (fps * 2)) |
5a547f69 C |
384 | } |
385 | } | |
c6c0fa6c C |
386 | } |
387 | ||
fb719404 | 388 | function addDefaultLiveHLSParams (command: ffmpeg.FfmpegCommand, outPath: string, deleteSegments: boolean) { |
68e70a74 | 389 | command.outputOption('-hls_time ' + VIDEO_LIVE.SEGMENT_TIME_SECONDS) |
fb719404 C |
390 | command.outputOption('-hls_list_size ' + VIDEO_LIVE.SEGMENTS_LIST_SIZE) |
391 | ||
392 | if (deleteSegments === true) { | |
393 | command.outputOption('-hls_flags delete_segments') | |
394 | } | |
395 | ||
21226063 | 396 | command.outputOption(`-hls_segment_filename ${join(outPath, '%v-%06d.ts')}`) |
c6c0fa6c C |
397 | command.outputOption('-master_pl_name master.m3u8') |
398 | command.outputOption(`-f hls`) | |
399 | ||
400 | command.output(join(outPath, '%v.m3u8')) | |
401 | } | |
402 | ||
9252a33d C |
403 | // --------------------------------------------------------------------------- |
404 | // Transcode VOD command builders | |
405 | // --------------------------------------------------------------------------- | |
406 | ||
407 | async function buildx264VODCommand (command: ffmpeg.FfmpegCommand, options: TranscodeOptions) { | |
14aed608 | 408 | let fps = await getVideoFileFPS(options.inputPath) |
884d2c39 | 409 | fps = computeFPS(fps, options.resolution) |
14aed608 | 410 | |
9252a33d | 411 | command = await presetVideo(command, options.inputPath, options, fps) |
14aed608 C |
412 | |
413 | if (options.resolution !== undefined) { | |
414 | // '?x720' or '720x?' for example | |
5a547f69 C |
415 | const size = options.isPortraitMode === true |
416 | ? `${options.resolution}x?` | |
417 | : `?x${options.resolution}` | |
418 | ||
14aed608 C |
419 | command = command.size(size) |
420 | } | |
421 | ||
14aed608 C |
422 | return command |
423 | } | |
424 | ||
536598cf C |
425 | async function buildAudioMergeCommand (command: ffmpeg.FfmpegCommand, options: MergeAudioTranscodeOptions) { |
426 | command = command.loop(undefined) | |
427 | ||
9252a33d C |
428 | command = await presetVideo(command, options.audioPath, options) |
429 | ||
9252a33d | 430 | command.outputOption('-preset:v veryfast') |
536598cf C |
431 | |
432 | command = command.input(options.audioPath) | |
433 | .videoFilter('scale=trunc(iw/2)*2:trunc(ih/2)*2') // Avoid "height not divisible by 2" error | |
434 | .outputOption('-tune stillimage') | |
435 | .outputOption('-shortest') | |
436 | ||
437 | return command | |
438 | } | |
439 | ||
daf6e480 | 440 | function buildOnlyAudioCommand (command: ffmpeg.FfmpegCommand, _options: OnlyAudioTranscodeOptions) { |
a1587156 | 441 | command = presetOnlyAudio(command) |
5c7d6508 | 442 | |
443 | return command | |
444 | } | |
445 | ||
a1587156 C |
446 | function buildQuickTranscodeCommand (command: ffmpeg.FfmpegCommand) { |
447 | command = presetCopy(command) | |
536598cf C |
448 | |
449 | command = command.outputOption('-map_metadata -1') // strip all metadata | |
450 | .outputOption('-movflags faststart') | |
451 | ||
452 | return command | |
453 | } | |
454 | ||
c6c0fa6c | 455 | async function buildHLSVODCommand (command: ffmpeg.FfmpegCommand, options: HLSTranscodeOptions) { |
14aed608 C |
456 | const videoPath = getHLSVideoPath(options) |
457 | ||
a1587156 | 458 | if (options.copyCodecs) command = presetCopy(command) |
1c320673 | 459 | else if (options.resolution === VideoResolution.H_NOVIDEO) command = presetOnlyAudio(command) |
9252a33d | 460 | else command = await buildx264VODCommand(command, options) |
14aed608 C |
461 | |
462 | command = command.outputOption('-hls_time 4') | |
463 | .outputOption('-hls_list_size 0') | |
464 | .outputOption('-hls_playlist_type vod') | |
465 | .outputOption('-hls_segment_filename ' + videoPath) | |
466 | .outputOption('-hls_segment_type fmp4') | |
467 | .outputOption('-f hls') | |
468 | .outputOption('-hls_flags single_file') | |
469 | ||
470 | return command | |
471 | } | |
472 | ||
536598cf C |
473 | async function fixHLSPlaylistIfNeeded (options: TranscodeOptions) { |
474 | if (options.type !== 'hls') return | |
7f8f8bdb | 475 | |
7f8f8bdb C |
476 | const fileContent = await readFile(options.outputPath) |
477 | ||
478 | const videoFileName = options.hlsPlaylist.videoFilename | |
479 | const videoFilePath = getHLSVideoPath(options) | |
480 | ||
536598cf | 481 | // Fix wrong mapping with some ffmpeg versions |
7f8f8bdb C |
482 | const newContent = fileContent.toString() |
483 | .replace(`#EXT-X-MAP:URI="${videoFilePath}",`, `#EXT-X-MAP:URI="${videoFileName}",`) | |
484 | ||
485 | await writeFile(options.outputPath, newContent) | |
486 | } | |
487 | ||
9252a33d C |
488 | function getHLSVideoPath (options: HLSTranscodeOptions) { |
489 | return `${dirname(options.outputPath)}/${options.hlsPlaylist.videoFilename}` | |
4176e227 RK |
490 | } |
491 | ||
9252a33d C |
492 | // --------------------------------------------------------------------------- |
493 | // Transcoding presets | |
494 | // --------------------------------------------------------------------------- | |
495 | ||
5a547f69 C |
496 | async function getEncoderBuilderResult (options: { |
497 | streamType: string | |
498 | input: string | |
499 | ||
500 | availableEncoders: AvailableEncoders | |
501 | profile: string | |
502 | ||
503 | videoType: 'vod' | 'live' | |
504 | ||
505 | resolution: number | |
506 | fps?: number | |
507 | streamNum?: number | |
508 | }) { | |
509 | const { availableEncoders, input, profile, resolution, streamType, fps, streamNum, videoType } = options | |
510 | ||
511 | const encodersToTry: string[] = VIDEO_TRANSCODING_ENCODERS[streamType] | |
512 | ||
513 | for (const encoder of encodersToTry) { | |
514 | if (!(await checkFFmpegEncoders()).get(encoder) || !availableEncoders[videoType][encoder]) continue | |
515 | ||
516 | const builderProfiles: EncoderProfile<EncoderOptionsBuilder> = availableEncoders[videoType][encoder] | |
517 | let builder = builderProfiles[profile] | |
518 | ||
519 | if (!builder) { | |
520 | logger.debug('Profile %s for encoder %s not available. Fallback to default.', profile, encoder) | |
521 | builder = builderProfiles.default | |
522 | } | |
523 | ||
524 | const result = await builder({ input, resolution: resolution, fps, streamNum }) | |
525 | ||
526 | return { | |
527 | result, | |
528 | ||
529 | // If we don't have output options, then copy the input stream | |
530 | encoder: result.copy === true | |
531 | ? 'copy' | |
532 | : encoder | |
533 | } | |
534 | } | |
535 | ||
536 | return null | |
537 | } | |
538 | ||
9252a33d C |
539 | async function presetVideo ( |
540 | command: ffmpeg.FfmpegCommand, | |
541 | input: string, | |
542 | transcodeOptions: TranscodeOptions, | |
543 | fps?: number | |
544 | ) { | |
cdf4cb9e | 545 | let localCommand = command |
4176e227 | 546 | .format('mp4') |
4176e227 | 547 | .outputOption('-movflags faststart') |
4176e227 | 548 | |
ce4a50b9 C |
549 | addDefaultEncoderGlobalParams({ command }) |
550 | ||
9252a33d | 551 | // Audio encoder |
daf6e480 | 552 | const parsedAudio = await getAudioStream(input) |
4176e227 | 553 | |
9252a33d | 554 | let streamsToProcess = [ 'AUDIO', 'VIDEO' ] |
9252a33d | 555 | |
cdf4cb9e C |
556 | if (!parsedAudio.audioStream) { |
557 | localCommand = localCommand.noAudio() | |
9252a33d C |
558 | streamsToProcess = [ 'VIDEO' ] |
559 | } | |
536598cf | 560 | |
5a547f69 C |
561 | for (const streamType of streamsToProcess) { |
562 | const { profile, resolution, availableEncoders } = transcodeOptions | |
563 | ||
564 | const builderResult = await getEncoderBuilderResult({ | |
565 | streamType, | |
566 | input, | |
567 | resolution, | |
568 | availableEncoders, | |
569 | profile, | |
570 | fps, | |
571 | videoType: 'vod' as 'vod' | |
572 | }) | |
9252a33d | 573 | |
5a547f69 C |
574 | if (!builderResult) { |
575 | throw new Error('No available encoder found for stream ' + streamType) | |
576 | } | |
9252a33d | 577 | |
5a547f69 | 578 | logger.debug('Apply ffmpeg params from %s.', builderResult.encoder, builderResult) |
9252a33d | 579 | |
5a547f69 C |
580 | if (streamType === 'VIDEO') { |
581 | localCommand.videoCodec(builderResult.encoder) | |
582 | } else if (streamType === 'AUDIO') { | |
583 | localCommand.audioCodec(builderResult.encoder) | |
9252a33d C |
584 | } |
585 | ||
5a547f69 C |
586 | command.addOutputOptions(builderResult.result.outputOptions) |
587 | addDefaultEncoderParams({ command: localCommand, encoder: builderResult.encoder, fps }) | |
536598cf | 588 | } |
bcf21a37 | 589 | |
cdf4cb9e | 590 | return localCommand |
4176e227 | 591 | } |
14aed608 | 592 | |
a1587156 | 593 | function presetCopy (command: ffmpeg.FfmpegCommand): ffmpeg.FfmpegCommand { |
14aed608 C |
594 | return command |
595 | .format('mp4') | |
596 | .videoCodec('copy') | |
597 | .audioCodec('copy') | |
598 | } | |
5c7d6508 | 599 | |
a1587156 | 600 | function presetOnlyAudio (command: ffmpeg.FfmpegCommand): ffmpeg.FfmpegCommand { |
5c7d6508 | 601 | return command |
602 | .format('mp4') | |
603 | .audioCodec('copy') | |
604 | .noVideo() | |
605 | } | |
c6c0fa6c | 606 | |
9252a33d C |
607 | // --------------------------------------------------------------------------- |
608 | // Utils | |
609 | // --------------------------------------------------------------------------- | |
610 | ||
c6c0fa6c C |
611 | function getFFmpeg (input: string) { |
612 | // We set cwd explicitly because ffmpeg appears to create temporary files when trancoding which fails in read-only file systems | |
613 | const command = ffmpeg(input, { niceness: FFMPEG_NICE.TRANSCODING, cwd: CONFIG.STORAGE.TMP_DIR }) | |
614 | ||
615 | if (CONFIG.TRANSCODING.THREADS > 0) { | |
616 | // If we don't set any threads ffmpeg will chose automatically | |
617 | command.outputOption('-threads ' + CONFIG.TRANSCODING.THREADS) | |
618 | } | |
619 | ||
620 | return command | |
621 | } | |
9252a33d C |
622 | |
623 | async function runCommand (command: ffmpeg.FfmpegCommand, onEnd?: Function) { | |
624 | return new Promise<void>((res, rej) => { | |
625 | command.on('error', (err, stdout, stderr) => { | |
626 | if (onEnd) onEnd() | |
627 | ||
628 | logger.error('Error in transcoding job.', { stdout, stderr }) | |
629 | rej(err) | |
630 | }) | |
631 | ||
632 | command.on('end', () => { | |
633 | if (onEnd) onEnd() | |
634 | ||
635 | res() | |
636 | }) | |
637 | ||
638 | command.run() | |
639 | }) | |
640 | } |