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H.264 Video Standard 
National Institute of Science & Technology 
H.264 VIDEO STANDARD 
by 
Mr. Varun Kumar Sahu 
Roll # C...
H.264 Video Standard 
Outline 
Technology 
• Introduction 
& • Objectives of H.264/AVC 
Science • History of Video Coding ...
H.264 Video Standard 
Introduction 
[3] National Institute of Science & Technology 
• The H.264 Advanced Video Coding (H.2...
H.264 Video Standard 
Objectives of H.264/AVC 
[4] National Institute of Science & Technology 
• To have a high-performanc...
H.264 Video Standard 
History of Video Coding Standards 
Technology 
ITU-T 
& Standards H.261 
H.263 H.263+ H.263++ 
Scien...
H.264 Video Standard 
MPEG-4 Overview 
Technology 
The standard was designed to address the following 
issues: 
• Interope...
H.264 Video Standard 
Overview of H.264 
[7] National Institute of Science & Technology 
Note: The underlying approach of ...
H.264 Video Standard 
Overview of H.274 contd… 
Technology 
Intra-prediction 
Integer Transform 
& Inter-prediction 
Quant...
H.264 Video Standard 
H.264 Profiles 
[9] National Institute of Science & Technology 
• A profile defines a set of coding ...
H.264 Video Standard 
H.264 Profiles contd… 
Technology 
In H.264/AVC, three profiles are defined currently: 
& • Baseline...
H.264 Video Standard 
Performance Comparisons 
Technology 
Table 1: Average bit-rate savings compared to other standards 
...
H.264 Video Standard 
Performance Comparisons contd… 
Technology 
& Science of Institute MPEG-2 encoding at 100 kbps H.264...
H.264 Video Standard 
Performance Comparisons contd… 
Technology 
& Science of Institute Bandwidth Required 
Storage Utili...
H.264 Video Standard 
Conclusion 
Technology 
• H.264/AVC is a major step forward in the development of 
video coding stan...
H.264 Video Standard 
References 
Technology 
1. Intelligent Computing CHIP, November 2004 
2. http://www.ebu.ch/trev_293-...
H.264 Video Standard 
Technology 
& Science Thank You!!! 
of Institute National [16] Varun Kumar Sahu CS200118272
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H.264 video standard

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Basics about H.264 video format or MP4 format of videos.

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H.264 video standard

  1. 1. H.264 Video Standard National Institute of Science & Technology H.264 VIDEO STANDARD by Mr. Varun Kumar Sahu Roll # CS200118272 National Institute of Science & Technology Palur Hills, Berhampur, INDIA-761 008 December 2004 Varun Kumar Sahu CS200118272
  2. 2. H.264 Video Standard Outline Technology • Introduction & • Objectives of H.264/AVC Science • History of Video Coding Standards • MPEG-4 Overview of Institute • Overview of H.264 • H.264 Profiles National • Performance comparisons [2] Varun Kumar Sahu CS200118272
  3. 3. H.264 Video Standard Introduction [3] National Institute of Science & Technology • The H.264 Advanced Video Coding (H.264/AVC) is an advanced video compression standard. • Also known as MPEG-4 Part 10, MPEG-4 AVC, MPEG-4 JVT or H.26L (L stands for Long). • First version released in the year 2003. • Developed by the Joint Video Team (JVT), a collective effort of the ITU-T VCEG & the ISO/IEC MPEG. Varun Kumar Sahu CS200118272
  4. 4. H.264 Video Standard Objectives of H.264/AVC [4] National Institute of Science & Technology • To have a high-performance video coding design using simple & straight forward techniques. • To improve the compression performance. • To support a wide variety of services/applications. • To accommodate a wide variety of bandwidth requirements. • To ensure support for unfriendly network conditions. • To develop a new part (Part-10) of the MPEG-4 family of standards and a new ITU-T (H.264) recommendation. Varun Kumar Sahu CS200118272
  5. 5. H.264 Video Standard History of Video Coding Standards Technology ITU-T & Standards H.261 H.263 H.263+ H.263++ Science Joint ITU-T/MPEG H.262/MPEG-2 Standards of Institute MPEG Standards National [5] 1984 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 Varun Kumar Sahu CS200118272 H.264 MPEG-1 MPEG-2 MPEG-4 Figure: Evolution of the video coding standards
  6. 6. H.264 Video Standard MPEG-4 Overview Technology The standard was designed to address the following issues: • Interoperability & • Transport Independence Science • Compression & transmission of rich media • Interactivity • Scalability of • Profiles Institute The MPEG Encoding process: • Frame slicing • Intra-coding National • Inter-coding • Compression [6] Varun Kumar Sahu CS200118272
  7. 7. H.264 Video Standard Overview of H.264 [7] National Institute of Science & Technology Note: The underlying approach of H.264 is similar to that adopted in previous standards. Key features of H.264/AVC: • Integer block transform • Enhanced motion estimation • Improved in-loop deblocking filter • Enhanced entropy coding Average bit-rate reduction of about 50% compared to any other standard. Varun Kumar Sahu CS200118272
  8. 8. H.264 Video Standard Overview of H.274 contd… Technology Intra-prediction Integer Transform & Inter-prediction Quantization Science Buffer of of reference frames Institute De-blocking filter National [8] Varun Kumar Sahu CS200118272 CABAC / CAVLC Current Picture Bit-stream Inverse quantization Inverse Integer Transform Figure: Block diagram of the H.264 Encoder
  9. 9. H.264 Video Standard H.264 Profiles [9] National Institute of Science & Technology • A profile defines a set of coding tools or algorithms that can be used in generating a compliant bit-stream. • All decoders conforming to a specific profile have to support all features in that profile. • Encoders are not required to make use of any particular set of features supported in a profile but have to provide conforming bit-streams. Varun Kumar Sahu CS200118272
  10. 10. H.264 Video Standard H.264 Profiles contd… Technology In H.264/AVC, three profiles are defined currently: & • Baseline profile – all features except CABAC, B-slices Science & weighted prediction. of Institute National [10] • Main profile – doesn’t support FMO that is present in the Baseline profile. • Extended profile – all features of Baseline & Main profile except CABAC & macroblock switching. Very soon, the High profile will be coming up. Varun Kumar Sahu CS200118272
  11. 11. H.264 Video Standard Performance Comparisons Technology Table 1: Average bit-rate savings compared to other standards Codec MPEG-4 H.263 MPEG-2 & H.264 39% 49% 64% Science MPEG- 4 - 17% 43% of Institute H.263 - - 31% Factors that enable superior rate-distortion: National • Highly flexible motion model • Very efficient CABAC [11] Varun Kumar Sahu CS200118272
  12. 12. H.264 Video Standard Performance Comparisons contd… Technology & Science of Institute MPEG-2 encoding at 100 kbps H.264 encoding at 100 kbps National [12] Varun Kumar Sahu CS200118272
  13. 13. H.264 Video Standard Performance Comparisons contd… Technology & Science of Institute Bandwidth Required Storage Utilization (Mbps) (MB) National [13] Varun Kumar Sahu CS200118272 MPEG-2 MPEG-4 H.264 Download Time (Minutes) 3.0 1.1 1.8 2025 1234 727 386 235 139 Figure: Performance comparison for a 90 min. DVD
  14. 14. H.264 Video Standard Conclusion Technology • H.264/AVC is a major step forward in the development of video coding standards. • The following advantages: & • Up to 50% in bit rate savings Science • High quality video • Error resilience features • Network friendliness of Institute National [14] helps H.264/AVC to outperform all other existing standards. • More and more companies are looking to support the H.264/AVC codec as it as a public and open standard. • Combining an advanced audio standard with the improved video quality can open up new possibilities. Varun Kumar Sahu CS200118272
  15. 15. H.264 Video Standard References Technology 1. Intelligent Computing CHIP, November 2004 2. http://www.ebu.ch/trev_293-schaefer.pdf & Science 3. http://www.utdallas.edu/~bhong/h264.pdf 4. http://www.ubvideo.com/mainmenu.html of 5. http://www.pixeltools.com/h264_paper.html Institute National [15] Varun Kumar Sahu CS200118272
  16. 16. H.264 Video Standard Technology & Science Thank You!!! of Institute National [16] Varun Kumar Sahu CS200118272

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