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import { mapValues, pick } from 'lodash-es'
import { Component, ElementRef, ViewChild } from '@angular/core'
import { AuthService, Notifier } from '@app/core'
import { NgbActiveModal, NgbModal } from '@ng-bootstrap/ng-bootstrap'
import { VideoCaption, VideoFile, VideoPrivacy } from '@shared/models'
import { BytesPipe, NumberFormatterPipe, VideoDetails, 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' = 'torrent'
resolutionId: number | string = -1
subtitleLanguageId: string
video: VideoDetails
videoFile: VideoFile
videoFileMetadataFormat: FileMetadata
videoFileMetadataVideoStream: FileMetadata | undefined
videoFileMetadataAudioStream: FileMetadata | undefined
videoCaptions: VideoCaption[]
activeModal: NgbActiveModal
type: DownloadType = 'video'
private bytesPipe: BytesPipe
private numbersPipe: NumberFormatterPipe
constructor (
private notifier: Notifier,
private modalService: NgbModal,
private videoService: VideoService,
private auth: AuthService
) {
this.bytesPipe = new BytesPipe()
this.numbersPipe = new NumberFormatterPipe()
}
get typeText () {
return this.type === 'video'
? $localize`video`
: $localize`subtitles`
}
getVideoFiles () {
if (!this.video) return []
return this.video.getFiles()
}
show (video: VideoDetails, videoCaptions?: VideoCaption[]) {
this.video = video
this.videoCaptions = videoCaptions && videoCaptions.length ? videoCaptions : undefined
this.activeModal = this.modalService.open(this.modal, { centered: true })
this.resolutionId = this.getVideoFiles()[0].resolution.id
this.onResolutionIdChange()
if (this.videoCaptions) this.subtitleLanguageId = this.videoCaptions[0].language.id
}
onClose () {
this.video = undefined
this.videoCaptions = undefined
}
download () {
window.location.assign(this.getLink())
this.activeModal.close()
}
getLink () {
return this.type === 'subtitles' && this.videoCaptions
? this.getSubtitlesLink()
: this.getVideoFileLink()
}
async onResolutionIdChange () {
this.videoFile = this.getVideoFile()
if (this.videoFile.metadata || !this.videoFile.metadataUrl) return
await this.hydrateMetadataFromMetadataUrl(this.videoFile)
this.videoFileMetadataFormat = this.videoFile
? this.getMetadataFormat(this.videoFile.metadata.format)
: undefined
this.videoFileMetadataVideoStream = this.videoFile
? this.getMetadataStream(this.videoFile.metadata.streams, 'video')
: undefined
this.videoFileMetadataAudioStream = this.videoFile
? this.getMetadataStream(this.videoFile.metadata.streams, 'audio')
: undefined
}
getVideoFile () {
// HTML select send us a string, so convert it to a number
this.resolutionId = parseInt(this.resolutionId.toString(), 10)
const file = this.getVideoFiles().find(f => f.resolution.id === this.resolutionId)
if (!file) {
console.error('Could not find file with resolution %d.', this.resolutionId)
return
}
return file
}
getVideoFileLink () {
const file = this.videoFile
if (!file) return
const suffix = this.video.privacy.id === VideoPrivacy.PRIVATE || this.video.privacy.id === VideoPrivacy.INTERNAL
? '?access_token=' + this.auth.getAccessToken()
: ''
switch (this.downloadType) {
case 'direct':
return file.fileDownloadUrl + suffix
case 'torrent':
return file.torrentDownloadUrl + suffix
}
}
getSubtitlesLink () {
return window.location.origin + this.videoCaptions.find(caption => caption.language.id === this.subtitleLanguageId).captionPath
}
activateCopiedMessage () {
this.notifier.success($localize`Copied`)
}
switchToType (type: DownloadType) {
this.type = type
}
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)
)
}
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)
observable.subscribe(res => file.metadata = res)
return observable.toPromise()
}
}
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