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import { copy } from 'fs-extra'
import { join } from 'path'
import { ThumbnailType } from '../../shared/models/videos/thumbnail.type'
import { generateImageFromVideoFile } from '../helpers/ffmpeg-utils'
import { processImage } from '../helpers/image-utils'
import { downloadImage } from '../helpers/requests'
import { CONFIG } from '../initializers/config'
import { ASSETS_PATH, PREVIEWS_SIZE, THUMBNAILS_SIZE } from '../initializers/constants'
import { ThumbnailModel } from '../models/video/thumbnail'
import { MVideoFile, MVideoThumbnail } from '../types/models'
import { MThumbnail } from '../types/models/video/thumbnail'
import { MVideoPlaylistThumbnail } from '../types/models/video/video-playlist'
import { getVideoFilePath } from './video-paths'
type ImageSize = { height: number, width: number }
function createPlaylistMiniatureFromExisting (options: {
inputPath: string
playlist: MVideoPlaylistThumbnail
automaticallyGenerated: boolean
keepOriginal?: boolean // default to false
size?: ImageSize
}) {
const { inputPath, playlist, automaticallyGenerated, keepOriginal = false, size } = options
const { filename, outputPath, height, width, existingThumbnail } = buildMetadataFromPlaylist(playlist, size)
const type = ThumbnailType.MINIATURE
const thumbnailCreator = () => processImage(inputPath, outputPath, { width, height }, keepOriginal)
return createThumbnailFromFunction({
thumbnailCreator,
filename,
height,
width,
type,
automaticallyGenerated,
existingThumbnail
})
}
function createPlaylistMiniatureFromUrl (options: {
downloadUrl: string
playlist: MVideoPlaylistThumbnail
size?: ImageSize
}) {
const { downloadUrl, playlist, size } = options
const { filename, basePath, height, width, existingThumbnail } = buildMetadataFromPlaylist(playlist, size)
const type = ThumbnailType.MINIATURE
// Only save the file URL if it is a remote playlist
const fileUrl = playlist.isOwned()
? null
: downloadUrl
const thumbnailCreator = () => downloadImage(downloadUrl, basePath, filename, { width, height })
return createThumbnailFromFunction({ thumbnailCreator, filename, height, width, type, existingThumbnail, fileUrl })
}
function createVideoMiniatureFromUrl (options: {
downloadUrl: string
video: MVideoThumbnail
type: ThumbnailType
size?: ImageSize
}) {
const { downloadUrl, video, type, size } = options
const { filename, basePath, height, width, existingThumbnail } = buildMetadataFromVideo(video, type, size)
// Only save the file URL if it is a remote video
const fileUrl = video.isOwned()
? null
: downloadUrl
// If the thumbnail URL did not change
const existingUrl = existingThumbnail
? existingThumbnail.fileUrl
: null
// If the thumbnail URL did not change and has a unique filename (introduced in 3.2), avoid thumbnail processing
const thumbnailUrlChanged = !existingUrl || existingUrl !== downloadUrl || downloadUrl.endsWith(`${video.uuid}.jpg`)
const thumbnailCreator = () => {
if (thumbnailUrlChanged) return downloadImage(downloadUrl, basePath, filename, { width, height })
return copy(existingThumbnail.getPath(), ThumbnailModel.buildPath(type, filename))
}
return createThumbnailFromFunction({ thumbnailCreator, filename, height, width, type, existingThumbnail, fileUrl })
}
function createVideoMiniatureFromExisting (options: {
inputPath: string
video: MVideoThumbnail
type: ThumbnailType
automaticallyGenerated: boolean
size?: ImageSize
keepOriginal?: boolean // default to false
}) {
const { inputPath, video, type, automaticallyGenerated, size, keepOriginal = false } = options
const { filename, outputPath, height, width, existingThumbnail } = buildMetadataFromVideo(video, type, size)
const thumbnailCreator = () => processImage(inputPath, outputPath, { width, height }, keepOriginal)
return createThumbnailFromFunction({
thumbnailCreator,
filename,
height,
width,
type,
automaticallyGenerated,
existingThumbnail
})
}
function generateVideoMiniature (options: {
video: MVideoThumbnail
videoFile: MVideoFile
type: ThumbnailType
}) {
const { video, videoFile, type } = options
const input = getVideoFilePath(video, videoFile)
const { filename, basePath, height, width, existingThumbnail, outputPath } = buildMetadataFromVideo(video, type)
const thumbnailCreator = videoFile.isAudio()
? () => processImage(ASSETS_PATH.DEFAULT_AUDIO_BACKGROUND, outputPath, { width, height }, true)
: () => generateImageFromVideoFile(input, basePath, filename, { height, width })
return createThumbnailFromFunction({
thumbnailCreator,
filename,
height,
width,
type,
automaticallyGenerated: true,
existingThumbnail
})
}
function createPlaceholderThumbnail (options: {
fileUrl: string
video: MVideoThumbnail
type: ThumbnailType
size: ImageSize
}) {
const { fileUrl, video, type, size } = options
const { filename, height, width, existingThumbnail } = buildMetadataFromVideo(video, type, size)
const thumbnail = existingThumbnail || new ThumbnailModel()
thumbnail.filename = filename
thumbnail.height = height
thumbnail.width = width
thumbnail.type = type
thumbnail.fileUrl = fileUrl
return thumbnail
}
// ---------------------------------------------------------------------------
export {
generateVideoMiniature,
createVideoMiniatureFromUrl,
createVideoMiniatureFromExisting,
createPlaceholderThumbnail,
createPlaylistMiniatureFromUrl,
createPlaylistMiniatureFromExisting
}
function buildMetadataFromPlaylist (playlist: MVideoPlaylistThumbnail, size: ImageSize) {
const filename = playlist.generateThumbnailName()
const basePath = CONFIG.STORAGE.THUMBNAILS_DIR
return {
filename,
basePath,
existingThumbnail: playlist.Thumbnail,
outputPath: join(basePath, filename),
height: size ? size.height : THUMBNAILS_SIZE.height,
width: size ? size.width : THUMBNAILS_SIZE.width
}
}
function buildMetadataFromVideo (video: MVideoThumbnail, type: ThumbnailType, size?: ImageSize) {
const existingThumbnail = Array.isArray(video.Thumbnails)
? video.Thumbnails.find(t => t.type === type)
: undefined
if (type === ThumbnailType.MINIATURE) {
const filename = video.generateThumbnailName()
const basePath = CONFIG.STORAGE.THUMBNAILS_DIR
return {
filename,
basePath,
existingThumbnail,
outputPath: join(basePath, filename),
height: size ? size.height : THUMBNAILS_SIZE.height,
width: size ? size.width : THUMBNAILS_SIZE.width
}
}
if (type === ThumbnailType.PREVIEW) {
const filename = video.generatePreviewName()
const basePath = CONFIG.STORAGE.PREVIEWS_DIR
return {
filename,
basePath,
existingThumbnail,
outputPath: join(basePath, filename),
height: size ? size.height : PREVIEWS_SIZE.height,
width: size ? size.width : PREVIEWS_SIZE.width
}
}
return undefined
}
async function createThumbnailFromFunction (parameters: {
thumbnailCreator: () => Promise<any>
filename: string
height: number
width: number
type: ThumbnailType
automaticallyGenerated?: boolean
fileUrl?: string
existingThumbnail?: MThumbnail
}) {
const {
thumbnailCreator,
filename,
width,
height,
type,
existingThumbnail,
automaticallyGenerated = null,
fileUrl = null
} = parameters
const oldFilename = existingThumbnail
? existingThumbnail.filename
: undefined
const thumbnail: MThumbnail = existingThumbnail || new ThumbnailModel()
thumbnail.filename = filename
thumbnail.height = height
thumbnail.width = width
thumbnail.type = type
thumbnail.fileUrl = fileUrl
thumbnail.automaticallyGenerated = automaticallyGenerated
thumbnail.previousThumbnailFilename = oldFilename
await thumbnailCreator()
return thumbnail
}
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