High Efficiency Video Coding

D. J. Sanghvi College of Engineering
Rushabh Savla
Vivek Sanghvi Jain
Nayan Seth
1

Why Processing?
1920 x 1080
1920 x 1080 x 3
1920 x 1080 x 3 x 25
1920 x 1080 x 3 x 25 x 60
1920 x 1080 x 3 x 25 x 60 x 60
A very very big number!
2

Effect on Network Trafﬁc
Video Data
3

Computational Complexity
Figure 1.1 Tradeoffs
4

Computational Complexity (Contd)
5
Figure 1.2 Comparison of Different H/W

Codecs + Containers
Figure 2.1 Codec and Containers
6

Reasons To Compress
7
Figure 3.1 A Image in Different File Sizes

Need For HEVC
Figure 4.1 Image Resolution
8
• Support for latest UHD.
• Reduced Network Trafﬁc
• Storing smaller ﬁles is easier.

Uses
9
• Netﬂix, Amazon Youtube, Any other streaming Media
• Blu-Ray , Digital Cinema with nearly lossless coding
• HDTV broadcast on HEVC supported televisions like the
SONY, LG, Samsung TV's

Limitations
10
• New Technology, slower adaptation.
• Dedicated hardware integration only recently declared.
• Software Decoder, Horsepower ambiguity problem.
• Patent troubles

Similar Coding Techniques
• H.264
• VP9
• VP8
• Daala
11

H.264 Vs HEVC
Figure 5.1 H.264 Vs HEVC
12

Video Coding
Figure 6.1 Video Encoding/Decoding Process
13

Encoding
Figure 7.1 Encoding Process
14

Partition
Figure 8.1 Partition into CTU
15

CTU
Figure 9.1 Coding Tree Units
16

Prediction
Figure 10.1 Prediction of Frames
17

Transform Quantize Scale
Figure 11.1 Transformation, Quantization and Scaling
18

Entropy Coding
Figure 12.1 Entropy Coding Example
19

Entropy Coding (Contd)
Figure 12.2 Entropy Coding Real World Example
20

Efﬁciency of HEVC
Figure 13.1 Efﬁciency of HEVC
21

Implementation
Figure 14.1 Preparing Frames
22

Implementation (Contd)
Figure 14.2 Encoding the Video
23

Implementation (Contd)
Figure 14.3 Compression Details
24

Output (H.264)
Figure 15.1 H.264 Result
25

Output (HEVC)
Figure 15.2 HEVC Result
26

Output (Contd)
Figure 15.3 H.264 Output
27

Output (Contd)
Figure 15.4 HEVC Output
28

Proposed Solution
• HEVC provides far better results
• Proprietary but stable
• Daala still in development
• Being backed by all major companies
• Encoders & Decoders already on their way
29

Conclusion
• 100 hours of video uploaded every minute to
YouTube
• Developing new networking technologies is a
tedious task.
• Future is 8K and beyond.
30

Thank You

High Efficiency Video Coding

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