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Review of current video status in HTML5 and Flash

Review of current video status in HTML5 and Flash

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Flash and HTML5 Video Presentation Transcript

  • 1. Video wars HTML 7 5 and Flash <Flex : Career/>
  • 2. HTML5
    • Drafts by WHAT WG
      • Web Hypertext Application Technologies
    • Merging into W3C specifications
    • “ One of HTML5’s goals is to move the Web away from proprietary technologies such as Flash, Silverlight, and JavaFX, says Ian Hickson, co-editor of the HTML5 specification.” —Paul Krill, reporting for InfoWorld, June 16, 2009
    • Browser support
  • 3. Fragmented Web - Description
    • Multimedia coding on the web is fragmented
    • Many video codecs:
      • DIVX, XVID, H.264
      • WMV, VC-1, VP6
    • Many containers (File Format)
      • AVI, MKV
      • MPEG4 FF, 3GPP
    • Many delivery methods
      • RTSP/RTP Streaming, Progressive download
      • Live HTTP, Smooth Streaming
  • 4. Fragmented Web - Challenges
    • Proprietary Plug-ins - like Flash
    • Vertical market control on media distribution – like Apple
    • Media Distributers need to support many:
      • Codecs
      • Containers
      • Delivery Formats
    • in order to support all device and audiences
  • 5. XIPH
    • XIPH.org is a non profit organization which aims to create free multimedia coding standards
    • XIPH defined
      • Vorbis – Audio codec
      • Ogg – a free file format media container
      • Speex – voice codec
      • Theora – Video Codec
    • HTML5 Video first based its video codec and container standard on XIPH Standards
  • 6. HTML5 Video
    • HTML5 video first defined XIPH formats as the base HTML5 video: “User agents should support Theora video and Vorbis audio, as well as the Ogg container format.” December 10, 2007, the HTML5 specification
    • This was later replaced by a statement which basically stated: we cant make up our mind, use whatever you like.
  • 7. HTML5 Video - Fragmented
    • Support Theora (version of VP3)
      • Old codec
      • Poor performance (BR/Quality ratio)
      • Free no royalties
      • Hardware support?
    • Also H.264
      • Much better quality per bitrate
      • But it requires royalties….
    • Google opens VP8
      • Good Quality
      • No Royalties (?)
  • 8. HTML5 Video Code
    • < videosrc =&quot; movie.ogg &quot; controls=&quot;controls&quot;>If you can see this text, your browser does not support the HTML5 video tag.</ video >
    • Source W3C School
  • 9. Browser CODEC Support Browser Ogg Theora H.264/MPEG-4 AVC Internet Explorer NO 9.0 Mozilla Firefox 3.5 No Google Chrome 3.0 3.0 Safari No 3.1 Opera 10.50
  • 10. WebM Project
  • 11. WebM Overview
    • Google Sponsored Project
    • Aims to create: Open , Royalty free media coding formats for the open web
    • Defines
      • File Format / Container
      • Audio CODEC
      • Video CODEC
  • 12. WebM
    • WebM fills the gap left by HTML5 standardization.
    • Defines: video, audio and container formats
    • Solves the royalty free Theora vs the superior quality H.264 by providing a royalty free video codec with the same (or better) video quality as H.264
    Source: On2
  • 13. Browser CODEC Support Browser Ogg Theora H.264/MPEG-4 AVC VP8 Internet Explorer NO 9.0 Plug-in Mozilla Firefox 3.5 No Yes Google Chrome 3.0 3.0 Yes Safari No 3.1 No! Opera 10.50 -
  • 14. What is missing
    • Standard Multi-bitrate support
    • HTTP Streaming (not PD)
    • Option for live streams
    • Transmit your camera (ChatRoulette Style)
    • P2P Interaction
    • Is that the Flash Killer?
  • 15. Google Video and VP8
  • 16. Google Video Strategy
  • 17. OS Device
    • PC
      • Chrome OS
    • Mobile
      • Android
    • TV
      • Android
    • Strategy:
      • License OS to partners
      • Bind to SAAS Services
  • 18. Before we start
    • VP8 goal is NOT to delivery the best video quality in any given bitrate
    • VP8 was designed as a mobile video decoder and should be examined in this context:
      • VP8 vs H.264 base profile
  • 19. Google VP8
    • Last month, in Google IO (its developer confrence), Google released VP8 as open source
    • VP8 is a light weight video codec developed by On2.
    • VP8 provide quality which is the same/higher than H.264 base profile
    • VP8 memory requirements are lower than H.264 base profile
    • After optimization, VP8 might have better MIPS performance than H.264 base profile
  • 20. Genealogy
    • VP8 is part of a well know codec family
    • VP3 was released to open source to become XIPH Theora
    • VP6 is used in Flash video
    • VP7 is used in Skype
    • Motivation:
      • “ No Royalties” CODEC
    VP8 VP7 VP6 VP3 Theora
  • 21. ADAPTATION – WHO USE IT?
    • Software
    • Hardware
    • Platform & Publishers
  • 22. Software Adaptation
    • Android, Anystream, Collabora
    • Corecodec, Firefox, Adobe Flash
    • Google Chrome, iLinc,
    • Inlet, Opera, ooVoo
    • Skype, Sorenson Media
    • Theora.org, Telestream, Wildform.
  • 23. Hardware adaptation
    • AMD, ARM, Broadcom
    • Digital Rapids, Freescale
    • Harmonic ,Logitech, ViewCast
    • Imagination Technologies, Marvell
    • NVIDIA, Qualcomm, Texas Instruments
    • VeriSilicon, MIPS
  • 24. Platforms and Publishers
    • Brightcove
    • Encoding.com
    • HD Cloud
    • Kaltura
    • Ooyala
    • YouTube
    • Zencoder
  • 25. VP8 MAIN FEATURES
  • 26. Adaptive Loop Filter
    • Improved Loop filter provides better quality & preformance in comparison to H.264
    Source: On2
  • 27. Golden Frames
    • Golden frames enables better decoding of background which is used for prediction in later frames
    • Could be used as resync-point:
      • Golden frame can reference an I frame
    • Could be hidden (not for display)
    Source: On2
  • 28. Decoding efficiency
    • CABAC is an H.264 feature which improves coding efficiency but consumes many CPU cycles
    • VP8 has better entropy coding than H.264, this leads to relatively lower CPU consumption under the same conditions
    • Decoding efficiency is important for smooth operation and long battery life in netbooks and mobile devices
    Source: On2
  • 29. Resolution up-scaling & downscaling
    • Supported by the decoder
    • Encoder could decide dynamically (RT applications) to lower resolution in case of low bit rate and let the decoder scale.
    • Remove decision from the application
    • No need for an I frame
  • 30. COMPARISON (FINALLY)
  • 31. Talking heads, Low motion
    • Low motion videos like talking heads are easy to compress, so you'll see no real difference
  • 32. Low motion
    • In another low motion video with a terrible background for encoding (finely detailed wallpaper), the VP8 video retains much more detail than H.264. Interesting result.
  • 33. Medium motion
    • VP8 holds up fairly well
  • 34. High motion
    • In high motion videos, H.264 seems superior. In this sample, blocks are visible in the pita where the H.264 video is smooth. The pin-striped shirt in the right background is also sharper in the H.264 video, as is the striped shirt on the left.
  • 35. Very High motion
    • In this very high motion skateboard video, H.264 also looks clearer, particularly in the highlighted areas in the fence, where the VP8 video has artifacts.
  • 36. Final
    • In the final comparison, I'd give a slight edge to VP8, which was clearer and showed fewer artifacts.
  • 37. Quality Comparison
  • 38. DSP-IP Contact information Download slides at: www.dsp-ip.com Course materials & lecture request Projects development services: Adi Yakov Training Manager [email_address] +972-9-8651933 www.dsp-ip.com Mail : [email_address] Phone: +972-9-8850956, Fax : +972-50- 8962910
      • Alona Ashkenazi
    • Development Services
    • [email_address] +972-9-8850956