allow limiting video-comments rss feeds to an account or video channel
[oweals/peertube.git] / server / lib / video-transcoding.ts
index bf3ff78c2ac233569a2815bf8cf6ed91a7dcfe04..628f22f5ea9b8052c414e335900b87cdcf119e7d 100644 (file)
@@ -1,22 +1,46 @@
-import { CONFIG } from '../initializers'
-import { join, extname } from 'path'
-import { getVideoFileFPS, getVideoFileResolution, transcode } from '../helpers/ffmpeg-utils'
-import { copy, remove, rename, stat } from 'fs-extra'
+import { HLS_STREAMING_PLAYLIST_DIRECTORY, P2P_MEDIA_LOADER_PEER_VERSION, WEBSERVER } from '../initializers/constants'
+import { basename, extname as extnameUtil, join } from 'path'
+import {
+  canDoQuickTranscode,
+  getDurationFromVideoFile,
+  getMetadataFromFile,
+  getVideoFileFPS,
+  transcode,
+  TranscodeOptions,
+  TranscodeOptionsType
+} from '../helpers/ffmpeg-utils'
+import { copyFile, 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'
-
-async function optimizeOriginalVideofile (video: VideoModel) {
-  const videosDirectory = CONFIG.STORAGE.VIDEOS_DIR
+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'
+import { MStreamingPlaylistFilesVideo, MVideoFile, MVideoWithAllFiles, MVideoWithFile } from '@server/types/models'
+import { createTorrentAndSetInfoHash } from '@server/helpers/webtorrent'
+import { generateVideoStreamingPlaylistName, getVideoFilename, getVideoFilePath } from './video-paths'
+
+/**
+ * Optimize the original video file and replace it. The resolution is not changed.
+ */
+async function optimizeOriginalVideofile (video: MVideoWithFile, inputVideoFileArg?: MVideoFile) {
+  const transcodeDirectory = CONFIG.STORAGE.TMP_DIR
   const newExtname = '.mp4'
-  const inputVideoFile = video.getOriginalFile()
-  const videoInputPath = join(videosDirectory, video.getVideoFilename(inputVideoFile))
-  const videoTranscodedPath = join(videosDirectory, video.id + '-transcoded' + newExtname)
 
-  const transcodeOptions = {
+  const inputVideoFile = inputVideoFileArg || video.getMaxQualityFile()
+  const videoInputPath = getVideoFilePath(video, inputVideoFile)
+  const videoTranscodedPath = join(transcodeDirectory, video.id + '-transcoded' + newExtname)
+
+  const transcodeType: TranscodeOptionsType = await canDoQuickTranscode(videoInputPath)
+    ? 'quick-transcode'
+    : 'video'
+
+  const transcodeOptions: TranscodeOptions = {
+    type: transcodeType,
     inputPath: videoInputPath,
-    outputPath: videoTranscodedPath
+    outputPath: videoTranscodedPath,
+    resolution: inputVideoFile.resolution
   }
 
   // Could be very long!
@@ -26,18 +50,11 @@ async function optimizeOriginalVideofile (video: VideoModel) {
     await remove(videoInputPath)
 
     // Important to do this before getVideoFilename() to take in account the new file extension
-    inputVideoFile.set('extname', newExtname)
+    inputVideoFile.extname = newExtname
 
-    const videoOutputPath = video.getVideoFilePath(inputVideoFile)
-    await rename(videoTranscodedPath, videoOutputPath)
-    const stats = await stat(videoOutputPath)
-    const fps = await getVideoFileFPS(videoOutputPath)
+    const videoOutputPath = getVideoFilePath(video, inputVideoFile)
 
-    inputVideoFile.set('size', stats.size)
-    inputVideoFile.set('fps', fps)
-
-    await video.createTorrentAndSetInfoHash(inputVideoFile)
-    await inputVideoFile.save()
+    await onVideoFileTranscoding(video, inputVideoFile, videoTranscodedPath, videoOutputPath)
   } catch (err) {
     // Auto destruction...
     video.destroy().catch(err => logger.error('Cannot destruct video after transcoding failure.', { err }))
@@ -46,12 +63,15 @@ async function optimizeOriginalVideofile (video: VideoModel) {
   }
 }
 
-async function transcodeOriginalVideofile (video: VideoModel, resolution: VideoResolution, isPortraitMode: boolean) {
-  const videosDirectory = CONFIG.STORAGE.VIDEOS_DIR
+/**
+ * Transcode the original video file to a lower resolution.
+ */
+async function transcodeNewResolution (video: MVideoWithFile, resolution: VideoResolution, isPortrait: boolean) {
+  const transcodeDirectory = CONFIG.STORAGE.TMP_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 videoInputPath = getVideoFilePath(video, video.getMaxQualityFile())
 
   const newVideoFile = new VideoFileModel({
     resolution,
@@ -59,72 +79,175 @@ async function transcodeOriginalVideofile (video: VideoModel, resolution: VideoR
     size: 0,
     videoId: video.id
   })
-  const videoOutputPath = join(videosDirectory, video.getVideoFilename(newVideoFile))
+  const videoOutputPath = getVideoFilePath(video, newVideoFile)
+  const videoTranscodedPath = join(transcodeDirectory, getVideoFilename(video, newVideoFile))
+
+  const transcodeOptions = resolution === VideoResolution.H_NOVIDEO
+    ? {
+      type: 'only-audio' as 'only-audio',
+      inputPath: videoInputPath,
+      outputPath: videoTranscodedPath,
+      resolution
+    }
+    : {
+      type: 'video' as 'video',
+      inputPath: videoInputPath,
+      outputPath: videoTranscodedPath,
+      resolution,
+      isPortraitMode: isPortrait
+    }
+
+  await transcode(transcodeOptions)
+
+  return onVideoFileTranscoding(video, newVideoFile, videoTranscodedPath, videoOutputPath)
+}
+
+async function mergeAudioVideofile (video: MVideoWithAllFiles, resolution: VideoResolution) {
+  const transcodeDirectory = CONFIG.STORAGE.TMP_DIR
+  const newExtname = '.mp4'
+
+  const inputVideoFile = video.getMinQualityFile()
+
+  const audioInputPath = getVideoFilePath(video, inputVideoFile)
+  const videoTranscodedPath = join(transcodeDirectory, video.id + '-transcoded' + newExtname)
+
+  // If the user updates the video preview during transcoding
+  const previewPath = video.getPreview().getPath()
+  const tmpPreviewPath = join(CONFIG.STORAGE.TMP_DIR, basename(previewPath))
+  await copyFile(previewPath, tmpPreviewPath)
 
   const transcodeOptions = {
-    inputPath: videoInputPath,
-    outputPath: videoOutputPath,
-    resolution,
-    isPortraitMode
+    type: 'merge-audio' as 'merge-audio',
+    inputPath: tmpPreviewPath,
+    outputPath: videoTranscodedPath,
+    audioPath: audioInputPath,
+    resolution
   }
 
-  await transcode(transcodeOptions)
-
-  const stats = await stat(videoOutputPath)
-  const fps = await getVideoFileFPS(videoOutputPath)
+  try {
+    await transcode(transcodeOptions)
 
-  newVideoFile.set('size', stats.size)
-  newVideoFile.set('fps', fps)
+    await remove(audioInputPath)
+    await remove(tmpPreviewPath)
+  } catch (err) {
+    await remove(tmpPreviewPath)
+    throw err
+  }
 
-  await video.createTorrentAndSetInfoHash(newVideoFile)
+  // Important to do this before getVideoFilename() to take in account the new file extension
+  inputVideoFile.extname = newExtname
 
-  await newVideoFile.save()
+  const videoOutputPath = getVideoFilePath(video, inputVideoFile)
+  // ffmpeg generated a new video file, so update the video duration
+  // See https://trac.ffmpeg.org/ticket/5456
+  video.duration = await getDurationFromVideoFile(videoTranscodedPath)
+  await video.save()
 
-  video.VideoFiles.push(newVideoFile)
+  return onVideoFileTranscoding(video, inputVideoFile, videoTranscodedPath, videoOutputPath)
 }
 
-async function importVideoFile (video: VideoModel, inputFilePath: string) {
-  const { videoFileResolution } = await getVideoFileResolution(inputFilePath)
-  const { size } = await stat(inputFilePath)
-  const fps = await getVideoFileFPS(inputFilePath)
+async function generateHlsPlaylist (video: MVideoWithFile, resolution: VideoResolution, copyCodecs: boolean, isPortraitMode: boolean) {
+  const baseHlsDirectory = join(HLS_STREAMING_PLAYLIST_DIRECTORY, video.uuid)
+  await ensureDir(join(HLS_STREAMING_PLAYLIST_DIRECTORY, video.uuid))
 
-  let updatedVideoFile = new VideoFileModel({
-    resolution: videoFileResolution,
-    extname: extname(inputFilePath),
-    size,
-    fps,
-    videoId: video.id
-  })
+  const videoFileInput = copyCodecs
+    ? video.getWebTorrentFile(resolution)
+    : video.getMaxQualityFile()
 
-  const currentVideoFile = video.VideoFiles.find(videoFile => videoFile.resolution === updatedVideoFile.resolution)
+  const videoOrStreamingPlaylist = videoFileInput.getVideoOrStreamingPlaylist()
+  const videoInputPath = getVideoFilePath(videoOrStreamingPlaylist, videoFileInput)
 
-  if (currentVideoFile) {
-    // Remove old file and old torrent
-    await video.removeFile(currentVideoFile)
-    await video.removeTorrent(currentVideoFile)
-    // Remove the old video file from the array
-    video.VideoFiles = video.VideoFiles.filter(f => f !== currentVideoFile)
+  const outputPath = join(baseHlsDirectory, VideoStreamingPlaylistModel.getHlsPlaylistFilename(resolution))
+  const videoFilename = generateVideoStreamingPlaylistName(video.uuid, resolution)
 
-    // Update the database
-    currentVideoFile.set('extname', updatedVideoFile.extname)
-    currentVideoFile.set('size', updatedVideoFile.size)
-    currentVideoFile.set('fps', updatedVideoFile.fps)
+  const transcodeOptions = {
+    type: 'hls' as 'hls',
+    inputPath: videoInputPath,
+    outputPath,
+    resolution,
+    copyCodecs,
+    isPortraitMode,
 
-    updatedVideoFile = currentVideoFile
+    hlsPlaylist: {
+      videoFilename
+    }
   }
 
-  const outputPath = video.getVideoFilePath(updatedVideoFile)
-  await copy(inputFilePath, outputPath)
+  logger.debug('Will run transcode.', { transcodeOptions })
+
+  await transcode(transcodeOptions)
+
+  const playlistUrl = WEBSERVER.URL + VideoStreamingPlaylistModel.getHlsMasterPlaylistStaticPath(video.uuid)
+
+  const [ videoStreamingPlaylist ] = 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
+  }, { returning: true }) as [ MStreamingPlaylistFilesVideo, boolean ]
+  videoStreamingPlaylist.Video = video
+
+  const newVideoFile = new VideoFileModel({
+    resolution,
+    extname: extnameUtil(videoFilename),
+    size: 0,
+    fps: -1,
+    videoStreamingPlaylistId: videoStreamingPlaylist.id
+  })
+
+  const videoFilePath = getVideoFilePath(videoStreamingPlaylist, newVideoFile)
+  const stats = await stat(videoFilePath)
+
+  newVideoFile.size = stats.size
+  newVideoFile.fps = await getVideoFileFPS(videoFilePath)
+  newVideoFile.metadata = await getMetadataFromFile(videoFilePath)
 
-  await video.createTorrentAndSetInfoHash(updatedVideoFile)
+  await createTorrentAndSetInfoHash(videoStreamingPlaylist, newVideoFile)
 
-  await updatedVideoFile.save()
+  await VideoFileModel.customUpsert(newVideoFile, 'streaming-playlist', undefined)
+  videoStreamingPlaylist.VideoFiles = await videoStreamingPlaylist.$get('VideoFiles')
 
-  video.VideoFiles.push(updatedVideoFile)
+  video.setHLSPlaylist(videoStreamingPlaylist)
+
+  await updateMasterHLSPlaylist(video)
+  await updateSha256Segments(video)
+
+  return video
 }
 
+// ---------------------------------------------------------------------------
+
 export {
+  generateHlsPlaylist,
   optimizeOriginalVideofile,
-  transcodeOriginalVideofile,
-  importVideoFile
+  transcodeNewResolution,
+  mergeAudioVideofile
+}
+
+// ---------------------------------------------------------------------------
+
+async function onVideoFileTranscoding (video: MVideoWithFile, videoFile: MVideoFile, transcodingPath: string, outputPath: string) {
+  const stats = await stat(transcodingPath)
+  const fps = await getVideoFileFPS(transcodingPath)
+  const metadata = await getMetadataFromFile(transcodingPath)
+
+  await move(transcodingPath, outputPath)
+
+  videoFile.size = stats.size
+  videoFile.fps = fps
+  videoFile.metadata = metadata
+
+  await createTorrentAndSetInfoHash(video, videoFile)
+
+  const updatedVideoFile = await videoFile.save()
+
+  // Add it if this is a new created file
+  if (video.VideoFiles.some(f => f.id === videoFile.id) === false) {
+    video.VideoFiles.push(updatedVideoFile)
+  }
+
+  return video
 }