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import { VideoFileModel } from '../models/video/video-file'
import { generateImageFromVideoFile } from '../helpers/ffmpeg-utils'
import { CONFIG } from '../initializers/config'
import { PREVIEWS_SIZE, THUMBNAILS_SIZE } from '../initializers/constants'
import { VideoModel } from '../models/video/video'
import { ThumbnailModel } from '../models/video/thumbnail'
import { ThumbnailType } from '../../shared/models/videos/thumbnail.type'
import { processImage } from '../helpers/image-utils'
import { join } from 'path'
import { downloadImage } from '../helpers/requests'
import { VideoPlaylistModel } from '../models/video/video-playlist'
type ImageSize = { height: number, width: number }
function createPlaylistThumbnailFromExisting (inputPath: string, playlist: VideoPlaylistModel, keepOriginal = false, size?: ImageSize) {
const { filename, outputPath, height, width, existingThumbnail } = buildMetadataFromPlaylist(playlist, size)
const type = ThumbnailType.THUMBNAIL
const thumbnailCreator = () => processImage({ path: inputPath }, outputPath, { width, height }, keepOriginal)
return createThumbnailFromFunction({ thumbnailCreator, filename, height, width, type, existingThumbnail })
}
function createPlaylistThumbnailFromUrl (url: string, playlist: VideoPlaylistModel, size?: ImageSize) {
const { filename, basePath, height, width, existingThumbnail } = buildMetadataFromPlaylist(playlist, size)
const type = ThumbnailType.THUMBNAIL
const thumbnailCreator = () => downloadImage(url, basePath, filename, { width, height })
return createThumbnailFromFunction({ thumbnailCreator, filename, height, width, type, existingThumbnail, url })
}
function createVideoThumbnailFromUrl (url: string, video: VideoModel, type: ThumbnailType, size?: ImageSize) {
const { filename, basePath, height, width, existingThumbnail } = buildMetadataFromVideo(video, type, size)
const thumbnailCreator = () => downloadImage(url, basePath, filename, { width, height })
return createThumbnailFromFunction({ thumbnailCreator, filename, height, width, type, existingThumbnail, url })
}
function createVideoThumbnailFromExisting (inputPath: string, video: VideoModel, type: ThumbnailType, size?: ImageSize) {
const { filename, outputPath, height, width, existingThumbnail } = buildMetadataFromVideo(video, type, size)
const thumbnailCreator = () => processImage({ path: inputPath }, outputPath, { width, height })
return createThumbnailFromFunction({ thumbnailCreator, filename, height, width, type, existingThumbnail })
}
function generateVideoThumbnail (video: VideoModel, videoFile: VideoFileModel, type: ThumbnailType) {
const input = video.getVideoFilePath(videoFile)
const { filename, basePath, height, width, existingThumbnail } = buildMetadataFromVideo(video, type)
const thumbnailCreator = () => generateImageFromVideoFile(input, basePath, filename, { height, width })
return createThumbnailFromFunction({ thumbnailCreator, filename, height, width, type, existingThumbnail })
}
function createPlaceholderThumbnail (url: string, video: VideoModel, type: ThumbnailType, size: ImageSize) {
const { filename, height, width, existingThumbnail } = buildMetadataFromVideo(video, type, size)
const thumbnail = existingThumbnail ? existingThumbnail : new ThumbnailModel()
thumbnail.filename = filename
thumbnail.height = height
thumbnail.width = width
thumbnail.type = type
thumbnail.url = url
return thumbnail
}
// ---------------------------------------------------------------------------
export {
generateVideoThumbnail,
createVideoThumbnailFromUrl,
createVideoThumbnailFromExisting,
createPlaceholderThumbnail,
createPlaylistThumbnailFromUrl,
createPlaylistThumbnailFromExisting
}
function buildMetadataFromPlaylist (playlist: VideoPlaylistModel, 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: VideoModel, type: ThumbnailType, size?: ImageSize) {
const existingThumbnail = Array.isArray(video.Thumbnails)
? video.Thumbnails.find(t => t.type === type)
: undefined
if (type === ThumbnailType.THUMBNAIL) {
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,
url?: string,
existingThumbnail?: ThumbnailModel
}) {
const { thumbnailCreator, filename, width, height, type, existingThumbnail, url = null } = parameters
const thumbnail = existingThumbnail ? existingThumbnail : new ThumbnailModel()
thumbnail.filename = filename
thumbnail.height = height
thumbnail.width = width
thumbnail.type = type
thumbnail.url = url
await thumbnailCreator()
return thumbnail
}
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