Current Status of HEVC by Jonatan Samuelsson from Divideon

Jonatan Samuelsson outlines the history of HEVC and the next steps and activities of HEVC. Presented at Streaming Tech Sweden on Nov 22, 2017

Transcript

1. HEVC/H.265
   © divideon 2017
   xvc.io
   

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2. © divideon 2017
   xvc.io
   Outline
   
   HEVC History
   
   Video coding intro
   
   HEVC coding tools
   
   HEVC Performance
   
   Extensions and profiles
   
   Activites beyond HEVC
   
   xvc
   

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3. © divideon 2017
   xvc.io
   HEVC history
   H.261
   Start
   2010 2013
   1988
   MPEG-2
   1994
   H.264/AVC
   2003
   HEVC
   2005
   Explorations
   HEVC v1 stats:
   
   3 years active standardization
   
   12 F2F meetings
   
   Tool Experiments, Core Experiments,
   Ad-Hoc Groups
   
   Up to 1000 contributions/meeting
   
   200 organizations
   
   1000 individuals
   Extensions
   

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4. © divideon 2017
   xvc.io
   HEVC history
   H.261
   Start
   2010 2013
   1988
   MPEG-2
   1994
   H.264/AVC
   2003
   HEVC
   2005
   Explorations
   HEVC v1 stats:
   
   3 years active standardization
   
   12 F2F meetings
   
   Tool Experiments, Core Experiments,
   Ad-Hoc Groups
   
   Up to 1000 contributions/meeting
   
   200 organizations
   
   1000 individuals
   MPEG LA HEVC ADVANCE
   VELOS MEDIA
   Extensions
   

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5. © divideon 2017
   xvc.io
   Video coding intro
   
   Three color components (RGB or Y'CbCr)
   
   A video consists of a sequence of pictures: 24fps, 50fps, 60fps
   
   A FullHD picture contains 1920x1080 (~2 million) samples
   
   Uncompressed this could be more than 2000 mbps
   
   Video codecs use a combination of temporal and spatial
   prediction to reduce the amount of transmitted information
   
   Often by a factor above 200:1
   Encoding
   Bitstream
   ...10010110... Decoding
   

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6. © divideon 2017
   xvc.io
   HEVC coding tools
   HEVC/H.265 AVC/H.264
   Coding units 64x64, 32x32, 16x16, 8x8 16x16
   Prediction units Square, symmetric rectangle,
   asymmetric rectangle
   Square, symmetric rectangle
   Transform units 32x32, 16x16, 8x8, 4x4 8x8, 4x4
   Intra prediction 33 directions, DC, planar 8 directions, DC, planar
   Interpolation filters 8-tap ¼ pixel (chroma 4-tap) 6-tap ¼ pixel (chroma 2-tap)
   Entropy coding CABAC CABAC or CAVLC
   Loop filters Deblocking, Sample Adaptive Offset Deblocking
   Additional tools Temporal motion vector prediction,
   Sign bit hiding,
   Transform skip,
   Wavefronts,
   Tiles HEVC/H.265
   AVC/H.264
   

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7. © divideon 2017
   xvc.io
   HEVC Performance
   
   Offers around 50% bitrate reduction compared to AVC/H.264
   

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8. © divideon 2017
   xvc.io
   Extensions and profiles
   Year HEVC
   version
   New
   profiles
   Extensions Profiles
   2013 v1 3 - Main,
   Main 10,
   Main Still Picture
   2014 v2 24 RExt
   High
   Throughput
   SHVC
   MV-HEVC
   Monochrome, Monochrome 12, Monochrome 16, Main 12, Main 4:2:2 10, Main 4:2:2
   12, Main 4:4:4, Main 4:4:4 10, Main 4:4:4 12, Monochrome 12 Intra, Monochrome
   16 Intra, Main 12 Intra, Main 4:2:2 10 Intra, Main 4:2:2 12 Intra, Main 4:4:4 Intra,
   Main 4:4:4 10 Intra, Main 4:4:4 12 Intra, Main 4:4:4 16 Intra, Main 4:4:4 Still Picture,
   Main 4:4:4 16 Still Picture,
   High Throughput 4:4:4 16 Intra,
   Scalable Main, Scalable Main 10,
   Multiview Main
   2015 v3 1 3D-HEVC 3D Main
   2016 v4 14 Screen
   Content
   Coding
   (SCC)
   High Throughput 4:4:4, High Throughput 4:4:4 10, High Throughput 4:4:4 14,
   Scalable Monochrome, Scalable Monochrome 12, Scalable Monochrome 16,
   Scalable Main 4:4:4,
   Screen-Extended Main, Screen-Extended Main 10, Screen-Extended Main 4:4:4,
   Screen-Extended Main 4:4:4 10, Screen-Extended High Throughput 4:4:4, Screen-
   Extended High Throughput 4:4:4 10, Screen-Extended High Throughput 4:4:4 14
   

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9. © divideon 2017
   xvc.io
   Activities beyond HEVC
   
   MPEG-I (Immersive Media)
   
   Point Cloud Compression
   
   Standardization started Oct 2017
   
   Immersive Video (Future Video Coding / Joint Video Experts Team)
   
   Standardization between April 2018 and Oct 2020
   
   Swedish National Body in MPEG organized by SIS, called TK302
   
   Other initiatives: AV1, xvc
   360-video
   Point Cloud
   

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10. © divideon 2017
    xvc.io
    xvc
    
    A software focused video codec developed by Divideon
    
    Offers around 5 – 20 % bitrate reduction compared to HEVC
    
    A revolutionary licensing model: a single license for both software and patents
    
    Source code on GitHub: github.com/divideon/xvc
    
    Comes with an optimized decoder that runs efficiently on mobile devices
    
    Extreme compression performance on low bitrates [demo with 720p at ~200 kbps]
    xvc.io
    

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11. Thank you!
    © divideon 2017
    xvc.io
    www.divideon.com Jonatan Samuelsson @JonatanDivideon
    jonatan.samuelsson@divideon.com
    

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