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import { HLS_STREAMING_PLAYLIST_DIRECTORY, P2P_MEDIA_LOADER_PEER_VERSION, WEBSERVER, VIDEO_TRANSCODING_FPS } from '../initializers/constants'
import { join } from 'path'
import { getVideoFileFPS, transcode, canDoQuickTranscode } from '../helpers/ffmpeg-utils'
import { ensureDir, move, remove, stat } from 'fs-extra'
import { logger } from '../helpers/logger'
import { VideoResolution } from '../../shared/models/videos'
import { VideoFileModel } from '../models/video/video-file'
import { VideoModel } from '../models/video/video'
import { updateMasterHLSPlaylist, updateSha256Segments } from './hls'
import { VideoStreamingPlaylistModel } from '../models/video/video-streaming-playlist'
import { VideoStreamingPlaylistType } from '../../shared/models/videos/video-streaming-playlist.type'
import { CONFIG } from '../initializers/config'
async function optimizeVideofile (video: VideoModel, inputVideoFileArg?: VideoFileModel) {
const videosDirectory = CONFIG.STORAGE.VIDEOS_DIR
const newExtname = '.mp4'
const inputVideoFile = inputVideoFileArg ? inputVideoFileArg : video.getOriginalFile()
const videoInputPath = join(videosDirectory, video.getVideoFilename(inputVideoFile))
const videoTranscodedPath = join(videosDirectory, video.id + '-transcoded' + newExtname)
const doQuickTranscode = await(canDoQuickTranscode(videoInputPath))
const transcodeOptions = {
inputPath: videoInputPath,
outputPath: videoTranscodedPath,
resolution: inputVideoFile.resolution,
doQuickTranscode
}
// Could be very long!
await transcode(transcodeOptions)
try {
await remove(videoInputPath)
// Important to do this before getVideoFilename() to take in account the new file extension
inputVideoFile.set('extname', newExtname)
const videoOutputPath = video.getVideoFilePath(inputVideoFile)
await move(videoTranscodedPath, videoOutputPath)
const stats = await stat(videoOutputPath)
const fps = await getVideoFileFPS(videoOutputPath)
inputVideoFile.set('size', stats.size)
inputVideoFile.set('fps', fps)
await video.createTorrentAndSetInfoHash(inputVideoFile)
await inputVideoFile.save()
} catch (err) {
// Auto destruction...
video.destroy().catch(err => logger.error('Cannot destruct video after transcoding failure.', { err }))
throw err
}
}
async function transcodeOriginalVideofile (video: VideoModel, resolution: VideoResolution, isPortrait: boolean) {
const videosDirectory = CONFIG.STORAGE.VIDEOS_DIR
const extname = '.mp4'
// We are sure it's x264 in mp4 because optimizeOriginalVideofile was already executed
const videoInputPath = join(videosDirectory, video.getVideoFilename(video.getOriginalFile()))
const newVideoFile = new VideoFileModel({
resolution,
extname,
size: 0,
videoId: video.id
})
const videoOutputPath = join(CONFIG.STORAGE.VIDEOS_DIR, video.getVideoFilename(newVideoFile))
const transcodeOptions = {
inputPath: videoInputPath,
outputPath: videoOutputPath,
resolution,
isPortraitMode: isPortrait
}
await transcode(transcodeOptions)
const stats = await stat(videoOutputPath)
const fps = await getVideoFileFPS(videoOutputPath)
newVideoFile.set('size', stats.size)
newVideoFile.set('fps', fps)
await video.createTorrentAndSetInfoHash(newVideoFile)
await newVideoFile.save()
video.VideoFiles.push(newVideoFile)
}
async function generateHlsPlaylist (video: VideoModel, resolution: VideoResolution, isPortraitMode: boolean) {
const baseHlsDirectory = join(HLS_STREAMING_PLAYLIST_DIRECTORY, video.uuid)
await ensureDir(join(HLS_STREAMING_PLAYLIST_DIRECTORY, video.uuid))
const videoInputPath = join(CONFIG.STORAGE.VIDEOS_DIR, video.getVideoFilename(video.getOriginalFile()))
const outputPath = join(baseHlsDirectory, VideoStreamingPlaylistModel.getHlsPlaylistFilename(resolution))
const transcodeOptions = {
inputPath: videoInputPath,
outputPath,
resolution,
isPortraitMode,
hlsPlaylist: {
videoFilename: VideoStreamingPlaylistModel.getHlsVideoName(video.uuid, resolution)
}
}
await transcode(transcodeOptions)
await updateMasterHLSPlaylist(video)
await updateSha256Segments(video)
const playlistUrl = WEBSERVER.URL + VideoStreamingPlaylistModel.getHlsMasterPlaylistStaticPath(video.uuid)
await VideoStreamingPlaylistModel.upsert({
videoId: video.id,
playlistUrl,
segmentsSha256Url: WEBSERVER.URL + VideoStreamingPlaylistModel.getHlsSha256SegmentsStaticPath(video.uuid),
p2pMediaLoaderInfohashes: VideoStreamingPlaylistModel.buildP2PMediaLoaderInfoHashes(playlistUrl, video.VideoFiles),
p2pMediaLoaderPeerVersion: P2P_MEDIA_LOADER_PEER_VERSION,
type: VideoStreamingPlaylistType.HLS
})
}
export {
generateHlsPlaylist,
optimizeVideofile,
transcodeOriginalVideofile
}
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