nginx-vod-module – NGINX-based MP4 Repackager

Features

• On-the-fly repackaging of MP4 files to DASH, HDS, HLS, MSS
• Working modes:
  1. Local – serve locally accessible files (local disk/NFS mounted)
  2. Remote – serve files accessible via HTTP using range requests
  3. Mapped – serve files according to a specification encoded in JSON format. The JSON can pulled from a remote server, or read from a local file
• Adaptive bitrate support
• Playlist support (playing several different media files one after the other) – mapped mode only
• Simulated live support (generating a live stream from MP4 files) – mapped mode only
• Fallback support for file not found in local/mapped modes (useful in multi-datacenter environments)
• Video codecs: H264, H265 (DASH/HLS)
• Audio codecs: AAC
• Audio only/video only files
• Alternative audio renditions – supporting both:
  1. Generation of manifest with different audio renditions, allowing selection on the client side
  2. Muxing together audio and video streams from separate files / tracks – provides the ability to serve different audio renditions of a single video, without the need for any special support on the client side.
• Track selection for multi audio/video MP4 files
• Playback rate change – 0.5x up to 2x (requires libavcodec and libavfilter)
• Source file clipping (only from I-Frame to P-frame)
• Support for variable segment lengths – enabling the player to select the optimal bitrate fast, without the overhead of short segments for the whole duration of the video
• Clipping of MP4 files for progressive download playback
• Decryption of CENC-encrypted MP4 files (it is possible to create such files with MP4Box)
• DASH: common encryption (CENC) support
• MSS: PlayReady encryption support
• HLS: Generation of I-frames playlist (EXT-X-I-FRAMES-ONLY)
• HLS: support for AES-128 / SAMPLE-AES encryption

מקור: kaltura/nginx-vod-module: NGINX-based MP4 Repackager