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0c9668f7 C |
1 | import { FilterSpecification } from 'fluent-ffmpeg' |
2 | import { FFmpegCommandWrapper, FFmpegCommandWrapperOptions } from './ffmpeg-command-wrapper' | |
3 | import { presetVOD } from './shared/presets' | |
4 | import { ffprobePromise, getVideoStreamDimensionsInfo, getVideoStreamDuration, getVideoStreamFPS, hasAudioStream } from './ffprobe' | |
5 | ||
6 | export class FFmpegEdition { | |
7 | private readonly commandWrapper: FFmpegCommandWrapper | |
8 | ||
9 | constructor (options: FFmpegCommandWrapperOptions) { | |
10 | this.commandWrapper = new FFmpegCommandWrapper(options) | |
11 | } | |
12 | ||
13 | async cutVideo (options: { | |
14 | inputPath: string | |
15 | outputPath: string | |
16 | start?: number | |
17 | end?: number | |
18 | }) { | |
19 | const { inputPath, outputPath } = options | |
20 | ||
21 | const mainProbe = await ffprobePromise(inputPath) | |
22 | const fps = await getVideoStreamFPS(inputPath, mainProbe) | |
23 | const { resolution } = await getVideoStreamDimensionsInfo(inputPath, mainProbe) | |
24 | ||
25 | const command = this.commandWrapper.buildCommand(inputPath) | |
26 | .output(outputPath) | |
27 | ||
28 | await presetVOD({ | |
29 | commandWrapper: this.commandWrapper, | |
30 | input: inputPath, | |
31 | resolution, | |
32 | fps, | |
33 | canCopyAudio: false, | |
34 | canCopyVideo: false | |
35 | }) | |
36 | ||
37 | if (options.start) { | |
38 | command.outputOption('-ss ' + options.start) | |
39 | } | |
40 | ||
41 | if (options.end) { | |
42 | command.outputOption('-to ' + options.end) | |
43 | } | |
44 | ||
45 | await this.commandWrapper.runCommand() | |
46 | } | |
47 | ||
48 | async addWatermark (options: { | |
49 | inputPath: string | |
50 | watermarkPath: string | |
51 | outputPath: string | |
52 | ||
53 | videoFilters: { | |
54 | watermarkSizeRatio: number | |
55 | horitonzalMarginRatio: number | |
56 | verticalMarginRatio: number | |
57 | } | |
58 | }) { | |
59 | const { watermarkPath, inputPath, outputPath, videoFilters } = options | |
60 | ||
61 | const videoProbe = await ffprobePromise(inputPath) | |
62 | const fps = await getVideoStreamFPS(inputPath, videoProbe) | |
63 | const { resolution } = await getVideoStreamDimensionsInfo(inputPath, videoProbe) | |
64 | ||
65 | const command = this.commandWrapper.buildCommand(inputPath) | |
66 | .output(outputPath) | |
67 | ||
68 | command.input(watermarkPath) | |
69 | ||
70 | await presetVOD({ | |
71 | commandWrapper: this.commandWrapper, | |
72 | input: inputPath, | |
73 | resolution, | |
74 | fps, | |
75 | canCopyAudio: true, | |
76 | canCopyVideo: false | |
77 | }) | |
78 | ||
79 | const complexFilter: FilterSpecification[] = [ | |
80 | // Scale watermark | |
81 | { | |
82 | inputs: [ '[1]', '[0]' ], | |
83 | filter: 'scale2ref', | |
84 | options: { | |
85 | w: 'oh*mdar', | |
86 | h: `ih*${videoFilters.watermarkSizeRatio}` | |
87 | }, | |
88 | outputs: [ '[watermark]', '[video]' ] | |
89 | }, | |
90 | ||
91 | { | |
92 | inputs: [ '[video]', '[watermark]' ], | |
93 | filter: 'overlay', | |
94 | options: { | |
95 | x: `main_w - overlay_w - (main_h * ${videoFilters.horitonzalMarginRatio})`, | |
96 | y: `main_h * ${videoFilters.verticalMarginRatio}` | |
97 | } | |
98 | } | |
99 | ] | |
100 | ||
101 | command.complexFilter(complexFilter) | |
102 | ||
103 | await this.commandWrapper.runCommand() | |
104 | } | |
105 | ||
106 | async addIntroOutro (options: { | |
107 | inputPath: string | |
108 | introOutroPath: string | |
109 | outputPath: string | |
110 | type: 'intro' | 'outro' | |
111 | }) { | |
112 | const { introOutroPath, inputPath, outputPath, type } = options | |
113 | ||
114 | const mainProbe = await ffprobePromise(inputPath) | |
115 | const fps = await getVideoStreamFPS(inputPath, mainProbe) | |
116 | const { resolution } = await getVideoStreamDimensionsInfo(inputPath, mainProbe) | |
117 | const mainHasAudio = await hasAudioStream(inputPath, mainProbe) | |
118 | ||
119 | const introOutroProbe = await ffprobePromise(introOutroPath) | |
120 | const introOutroHasAudio = await hasAudioStream(introOutroPath, introOutroProbe) | |
121 | ||
122 | const command = this.commandWrapper.buildCommand(inputPath) | |
123 | .output(outputPath) | |
124 | ||
125 | command.input(introOutroPath) | |
126 | ||
127 | if (!introOutroHasAudio && mainHasAudio) { | |
128 | const duration = await getVideoStreamDuration(introOutroPath, introOutroProbe) | |
129 | ||
130 | command.input('anullsrc') | |
131 | command.withInputFormat('lavfi') | |
132 | command.withInputOption('-t ' + duration) | |
133 | } | |
134 | ||
135 | await presetVOD({ | |
136 | commandWrapper: this.commandWrapper, | |
137 | input: inputPath, | |
138 | resolution, | |
139 | fps, | |
140 | canCopyAudio: false, | |
141 | canCopyVideo: false | |
142 | }) | |
143 | ||
144 | // Add black background to correctly scale intro/outro with padding | |
145 | const complexFilter: FilterSpecification[] = [ | |
146 | { | |
147 | inputs: [ '1', '0' ], | |
148 | filter: 'scale2ref', | |
149 | options: { | |
150 | w: 'iw', | |
151 | h: `ih` | |
152 | }, | |
153 | outputs: [ 'intro-outro', 'main' ] | |
154 | }, | |
155 | { | |
156 | inputs: [ 'intro-outro', 'main' ], | |
157 | filter: 'scale2ref', | |
158 | options: { | |
159 | w: 'iw', | |
160 | h: `ih` | |
161 | }, | |
162 | outputs: [ 'to-scale', 'main' ] | |
163 | }, | |
164 | { | |
165 | inputs: 'to-scale', | |
166 | filter: 'drawbox', | |
167 | options: { | |
168 | t: 'fill' | |
169 | }, | |
170 | outputs: [ 'to-scale-bg' ] | |
171 | }, | |
172 | { | |
173 | inputs: [ '1', 'to-scale-bg' ], | |
174 | filter: 'scale2ref', | |
175 | options: { | |
176 | w: 'iw', | |
177 | h: 'ih', | |
178 | force_original_aspect_ratio: 'decrease', | |
179 | flags: 'spline' | |
180 | }, | |
181 | outputs: [ 'to-scale', 'to-scale-bg' ] | |
182 | }, | |
183 | { | |
184 | inputs: [ 'to-scale-bg', 'to-scale' ], | |
185 | filter: 'overlay', | |
186 | options: { | |
187 | x: '(main_w - overlay_w)/2', | |
188 | y: '(main_h - overlay_h)/2' | |
189 | }, | |
190 | outputs: 'intro-outro-resized' | |
191 | } | |
192 | ] | |
193 | ||
194 | const concatFilter = { | |
195 | inputs: [], | |
196 | filter: 'concat', | |
197 | options: { | |
198 | n: 2, | |
199 | v: 1, | |
200 | unsafe: 1 | |
201 | }, | |
202 | outputs: [ 'v' ] | |
203 | } | |
204 | ||
205 | const introOutroFilterInputs = [ 'intro-outro-resized' ] | |
206 | const mainFilterInputs = [ 'main' ] | |
207 | ||
208 | if (mainHasAudio) { | |
209 | mainFilterInputs.push('0:a') | |
210 | ||
211 | if (introOutroHasAudio) { | |
212 | introOutroFilterInputs.push('1:a') | |
213 | } else { | |
214 | // Silent input | |
215 | introOutroFilterInputs.push('2:a') | |
216 | } | |
217 | } | |
218 | ||
219 | if (type === 'intro') { | |
220 | concatFilter.inputs = [ ...introOutroFilterInputs, ...mainFilterInputs ] | |
221 | } else { | |
222 | concatFilter.inputs = [ ...mainFilterInputs, ...introOutroFilterInputs ] | |
223 | } | |
224 | ||
225 | if (mainHasAudio) { | |
226 | concatFilter.options['a'] = 1 | |
227 | concatFilter.outputs.push('a') | |
228 | ||
229 | command.outputOption('-map [a]') | |
230 | } | |
231 | ||
232 | command.outputOption('-map [v]') | |
233 | ||
234 | complexFilter.push(concatFilter) | |
235 | command.complexFilter(complexFilter) | |
236 | ||
237 | await this.commandWrapper.runCommand() | |
238 | } | |
239 | } |