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Media Content Delivery Systems



First Presentation on MCDS

First Presentation on MCDS



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  • Vlc and other developers manage x264 an open source library to encode to h264.H264 is owned by mpeg-la and you pay a fee to be able to encode and decode to it.Playing it doesn’t constitute royalties.

Media Content Delivery Systems Media Content Delivery Systems Presentation Transcript

  • Media Content Delivery Systems
    …Or MCDS
    Brendan Ashby and Lindsey Kennard
  • How is video presented over the web?
    What containers and codecs are used?
    How do you handle various bandwidths?
    How do you handle large audiences?
    What constitutes HD delivery?
    How to keep Buffering low?
    How to keep seeking instant?
    How to secure your files, limit bandwidth, prevent hotlinking/deeplinking?
    Initially, I had curiosities
  • What is H264 versus x264?
    Is MKV a good video codec?
    What is WebM and WebP?
    What is a .ass file?
    How do you protect your online video media from stream rippers?
    Flash tries so hard at this
    What is .f4v?
    Quick Survey – “TIL”
  • The Hunt for HD
    The driving force for finding other web video solutions was a search for
    Minimal Re-encoding
    Support for the latest codecs
    Adaptable to a web environment
    Not satisfied with the flash status quo
    The project developed into 2 parts
    Video Streaming technologies
    Database management
  • WMP - .asx .asf mms
    Quicktime - .mov .m4v
    Flash - .flv .swf .f4v (The Big one)
    At first I thought that was all…
    HTTP Pseudo streaming
    Mpeg Part 14 Support (H264/AAC) through flash (.mp4)
    RTMP Streaming – RTMPT (HTTP Proxy)
    VLC’s Plug-in – Java based
    HTML5 <video> OggVorbis
    Silverlight - Smooth Streaming
    I looked at all of these. :D
    Ok, so how does video get to you
  • Run by code-shop guys
    Works on all major web servers
    Allows instant seeking
    Quick buffering
    Bandwidth Shaping
    Dynamic bandwidth (I.e. Smooth Streaming)
    H264 Pseudo Streaming
  • Flash has moved on from the lossy .flv and the need to reencode to play video through it.
    They natively support all parts of Mpeg and .mov. Specifically, H264/ACC codecs.
    Flash newly Supports: .mp4 .mov (H264/AAC)
  • Instant Playback
    Efficient Bandwidth Usage
    Instant Seeking
    Adaptive Bandwidth Shaping
    Included in all Adobe Flash Server Products – Proprietary Protocol
    Very Secure, only current chunk is in flash memory, hard to stream rip, hard to steal.
    RTMPDUMP: http://rtmpdump.mplayerhq.hu/
    RTMP Streaming
  • Lacks any advanced features
    Free, highly customizable
    Plays everything VLC can play (Duh)
    VLC Web-plugin
  • Silverlight
    Video encrypted in Silverlight web plug in
    Allowed for specific bandwidth shaping
    Change bitrates on the fly
    No buffering, Instant seeking
    Supports all VFW formats, can convert to necessary formats using free encoders
    Admittedly a pain to use,
    only likes to work in IIS servers
    takes a lot of storage space
    encoder is inefficient
    community is lacking
  • HTML5 <video>
    Currently uses open source Oggvorbiscodecs.
    Google is pushing their own VP8 adapted format called WebM (WebP for images)
    Most know about fight between apple, mozilla, opera, and microsoft over what codecs should become standard for HTML5
    Issues revolve around costs, licensing, and quality
    Most browsers support the current HTML5, but not all of HTML has not been standardized yet.
  • Where Next
    Working on the web server, changing from IIS7.0+Adobe FSS (streaming server) to Apache on linux.
    Exploring common modules for web streaming and file security (e.g. mod_auth_token)
    Exploring smooth streaming method not on IIS: http://smoothstreaming.code-shop.com/trac
    Exploring database management methods
    MySQL and such for managing metadata
    Storing and retrieving efficiently
    Watching BW usage (myrpi.org)
  • Early Database Talk
    Store all data for specific files
    Unique IDs, Delimited
    Create RSS/XML for each file as necessary
    Video specific metadata can be pulled by FFmpeg libraries
    Early Scripting Demo
  • Some Output
    SldWrl 1280x800 WS.jpg:::./HDD/Backround Slides/database/Ultimate_Wallpaper_Pack_Pt1_by_Phoenix_06/Shield World Construction/SldWrl 1280x800 WS.jpg
    1266790316469.jpg:::./HDD/Backround Slides/database/1266790316469.jpg
    Konachan.com - 36909 enma_aijigoku_shoujo.jpg:::./HDD/Backround Slides/database/Konachan.com - 36909 enma_ai jigoku_shoujo.jpg
    1270396601255.jpg:::./HDD/Backround Slides/database/1270396601255.jpg
    earth-wallpapers_11064_1680x1050.jpg:::./HDD/Backround Slides/database/earth-wallpapers_11064_1680x1050.jpg
    1283671379882.jpg:::./HDD/Backround Slides/database/1283671379882.jpg

  • Final Thoughts
    Maintain a database to manage many video files – Tags, Metadata, …
    Present a web fronted library to end-user for traversal.
    Users can add videos to a vote pool
    Users can vote on what video to be viewed
    Creates a community-driven vote-based web-streaming solution.
    “It’s like were all watching TV together and voting on the channel”
  • Demo Site
    Stream Server: http://stream.rpigaming.com
    Website: http://anime.rpigaming.com
    Status: http://stream.rpigaming.com/server-status
  • Thanks again :D
    Thanks to hosting.myrpi.org (student senate)
    Thanks to the RCOS IRC
    Thanks to awesome Mr. MSK and Mr. Sean
    Brendan Ashby | Lindsey Kennard