aboutsummaryrefslogtreecommitdiffhomepage
path: root/client/src/app/shared/shared-video-miniature/video-download.component.ts
blob: 4135542dc59c5e9f01b0f4b72710777c78ac865a (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
import { mapValues, pick } from 'lodash-es'
import { firstValueFrom } from 'rxjs'
import { tap } from 'rxjs/operators'
import { Component, ElementRef, Inject, LOCALE_ID, ViewChild } from '@angular/core'
import { HooksService } from '@app/core'
import { NgbModal, NgbModalRef } from '@ng-bootstrap/ng-bootstrap'
import { logger } from '@root-helpers/logger'
import { videoRequiresAuth } from '@root-helpers/video'
import { VideoCaption, VideoFile, VideoPrivacy } from '@shared/models'
import { BytesPipe, NumberFormatterPipe, VideoDetails, VideoFileTokenService, VideoService } from '../shared-main'

type DownloadType = 'video' | 'subtitles'
type FileMetadata = { [key: string]: { label: string, value: string } }

@Component({
  selector: 'my-video-download',
  templateUrl: './video-download.component.html',
  styleUrls: [ './video-download.component.scss' ]
})
export class VideoDownloadComponent {
  @ViewChild('modal', { static: true }) modal: ElementRef

  downloadType: 'direct' | 'torrent' = 'direct'

  resolutionId: number | string = -1
  subtitleLanguageId: string

  videoFileMetadataFormat: FileMetadata
  videoFileMetadataVideoStream: FileMetadata | undefined
  videoFileMetadataAudioStream: FileMetadata | undefined

  isAdvancedCustomizationCollapsed = true

  type: DownloadType = 'video'

  videoFileToken: string

  private activeModal: NgbModalRef

  private bytesPipe: BytesPipe
  private numbersPipe: NumberFormatterPipe

  private video: VideoDetails
  private videoCaptions: VideoCaption[]

  constructor (
    @Inject(LOCALE_ID) private localeId: string,
    private modalService: NgbModal,
    private videoService: VideoService,
    private videoFileTokenService: VideoFileTokenService,
    private hooks: HooksService
  ) {
    this.bytesPipe = new BytesPipe()
    this.numbersPipe = new NumberFormatterPipe(this.localeId)
  }

  get typeText () {
    return this.type === 'video'
      ? $localize`video`
      : $localize`subtitles`
  }

  getVideoFiles () {
    if (!this.video) return []

    return this.video.getFiles()
  }

  getCaptions () {
    if (!this.videoCaptions) return []

    return this.videoCaptions
  }

  show (video: VideoDetails, videoCaptions?: VideoCaption[]) {
    this.videoFileToken = undefined

    this.video = video
    this.videoCaptions = videoCaptions

    this.activeModal = this.modalService.open(this.modal, { centered: true })

    if (this.hasFiles()) {
      this.onResolutionIdChange(this.getVideoFiles()[0].resolution.id)
    }

    if (this.hasCaptions()) {
      this.subtitleLanguageId = this.videoCaptions[0].language.id
    }

    if (videoRequiresAuth(this.video)) {
      this.videoFileTokenService.getVideoFileToken(this.video.uuid)
        .subscribe(({ token }) => this.videoFileToken = token)
    }

    this.activeModal.shown.subscribe(() => {
      this.hooks.runAction('action:modal.video-download.shown', 'common')
    })
  }

  onClose () {
    this.video = undefined
    this.videoCaptions = undefined
  }

  download () {
    window.location.assign(this.getLink())

    this.activeModal.close()
  }

  getLink () {
    return this.type === 'subtitles' && this.videoCaptions
      ? this.getCaptionLink()
      : this.getVideoFileLink()
  }

  async onResolutionIdChange (resolutionId: number) {
    this.resolutionId = resolutionId

    const videoFile = this.getVideoFile()

    if (!videoFile.metadata) {
      if (!videoFile.metadataUrl) return

      await this.hydrateMetadataFromMetadataUrl(videoFile)
    }

    if (!videoFile.metadata) return

    this.videoFileMetadataFormat = videoFile
      ? this.getMetadataFormat(videoFile.metadata.format)
      : undefined
    this.videoFileMetadataVideoStream = videoFile
      ? this.getMetadataStream(videoFile.metadata.streams, 'video')
      : undefined
    this.videoFileMetadataAudioStream = videoFile
      ? this.getMetadataStream(videoFile.metadata.streams, 'audio')
      : undefined
  }

  onSubtitleIdChange (subtitleId: string) {
    this.subtitleLanguageId = subtitleId
  }

  hasFiles () {
    return this.getVideoFiles().length !== 0
  }

  getVideoFile () {
    const file = this.getVideoFiles()
                     .find(f => f.resolution.id === this.resolutionId)

    if (!file) {
      logger.error(`Could not find file with resolution ${this.resolutionId}`)
      return undefined
    }

    return file
  }

  getVideoFileLink () {
    const file = this.getVideoFile()
    if (!file) return ''

    const suffix = this.isConfidentialVideo()
      ? '?videoFileToken=' + this.videoFileToken
      : ''

    switch (this.downloadType) {
      case 'direct':
        return file.fileDownloadUrl + suffix

      case 'torrent':
        return file.torrentDownloadUrl + suffix
    }
  }

  hasCaptions () {
    return this.getCaptions().length !== 0
  }

  getCaption () {
    const caption = this.getCaptions()
                        .find(c => c.language.id === this.subtitleLanguageId)

    if (!caption) {
      logger.error(`Cannot find caption ${this.subtitleLanguageId}`)
      return undefined
    }

    return caption
  }

  getCaptionLink () {
    const caption = this.getCaption()
    if (!caption) return ''

    return window.location.origin + caption.captionPath
  }

  isConfidentialVideo () {
    return this.video.privacy.id === VideoPrivacy.PRIVATE || this.video.privacy.id === VideoPrivacy.INTERNAL
  }

  switchToType (type: DownloadType) {
    this.type = type
  }

  getFileMetadata () {
    const file = this.getVideoFile()
    if (!file) return undefined

    return file.metadata
  }

  private getMetadataFormat (format: any) {
    const keyToTranslateFunction = {
      encoder: (value: string) => ({ label: $localize`Encoder`, value }),
      format_long_name: (value: string) => ({ label: $localize`Format name`, value }),
      size: (value: number) => ({ label: $localize`Size`, value: this.bytesPipe.transform(value, 2) }),
      bit_rate: (value: number) => ({
        label: $localize`Bitrate`,
        value: `${this.numbersPipe.transform(value)}bps`
      })
    }

    // flattening format
    const sanitizedFormat = Object.assign(format, format.tags)
    delete sanitizedFormat.tags

    return mapValues(
      pick(sanitizedFormat, Object.keys(keyToTranslateFunction)),
      (val, key) => keyToTranslateFunction[key](val)
    )
  }

  private getMetadataStream (streams: any[], type: 'video' | 'audio') {
    const stream = streams.find(s => s.codec_type === type)
    if (!stream) return undefined

    let keyToTranslateFunction = {
      codec_long_name: (value: string) => ({ label: $localize`Codec`, value }),
      profile: (value: string) => ({ label: $localize`Profile`, value }),
      bit_rate: (value: number) => ({
        label: $localize`Bitrate`,
        value: `${this.numbersPipe.transform(value)}bps`
      })
    }

    if (type === 'video') {
      keyToTranslateFunction = Object.assign(keyToTranslateFunction, {
        width: (value: number) => ({ label: $localize`Resolution`, value: `${value}x${stream.height}` }),
        display_aspect_ratio: (value: string) => ({ label: $localize`Aspect ratio`, value }),
        avg_frame_rate: (value: string) => ({ label: $localize`Average frame rate`, value }),
        pix_fmt: (value: string) => ({ label: $localize`Pixel format`, value })
      })
    } else {
      keyToTranslateFunction = Object.assign(keyToTranslateFunction, {
        sample_rate: (value: number) => ({ label: $localize`Sample rate`, value }),
        channel_layout: (value: number) => ({ label: $localize`Channel Layout`, value })
      })
    }

    return mapValues(
      pick(stream, Object.keys(keyToTranslateFunction)),
      (val, key) => keyToTranslateFunction[key](val)
    )
  }

  private hydrateMetadataFromMetadataUrl (file: VideoFile) {
    const observable = this.videoService.getVideoFileMetadata(file.metadataUrl)
      .pipe(tap(res => file.metadata = res))

    return firstValueFrom(observable)
  }
}