Adobe Max 2007 - Advanced Video Encoding

2007 Adobe Systems Incorporated. All Rights Reserved.1

MAX 2007CONNECT. DISCOVER. INSPIRE.

Giovanni Antico

AdobeGuru | Italyhttp://labs.gantico.com/archive/2007/adobemax/

Barcelona, October 16, 2007


Intro

start with good plan, shooting, editing & postproduction

choose appropriate codec, encoder and workflow

search the best compromise between:

your content: image & audio quality (compression), smooth motion (fps), resolution (image size)

your target: constrains of bandwidth and processing power.

32007 Adobe Systems Incorporated. All Rights Reserved.

For details on all the new features: http://labs.adobe.com/technologies/flashplayer9/

What’s new in Moviestar?

Acceleration

Full screen mode with hardware scaling

Multi-core support for vector rendering

New Codecs

H.264 video

HE-AAC audio

VP6-S video


* = Data registered in September 2007: http://www.adobe.com/products/player_census/flashplayer/version_penetration.html

Video codecs supported by Flash Player

not yetH.264

99.2%* 6No

Yes

yes

Alpha + cue points

93.7%*9

99.2%*

98.2%*

1%**

UbiquityVersion

Codec

7Spark

8VP6-E

9,0,64

(Moviestar)VP6-S

** = Unofficial data just based upon server logs in September: http://www.jeroenwijering.com/?item=FLV_Video_Compression

Flash Player


Supported:

Base, Mainline, High and High-10 profiles (ISO 14496-10 standard)

In other words: ipod and podcast video (mp4, mov)

AAC support ISO 14496-3 standard. (Default for iPod and PS3)

Not supported:

H.264 & AAC protected with Fairplay DRM

Mpeg-4 Part 2 (Xvid, Divx)

H.263, Sorenson 3

H.264 & AAC in Flash Player


Immediate:

Very high quality and efficiency

Port existing .m4a podcast to Flash

MPEG-4 is an industry standard

Many encoders available

Future:

HW acceleration by graphic cards

HW encoders (more then real-time)

Digital TV adopting H.264

H.264 advantages


Slices of videos compressed with QuickTime Pro Export to H.264 with quality set at 96%, 50%, 0%

H.264 Comparison

Original 380 Mb 96% - 28,4 Mb 50% - 3,18Mb 0% - 0.50 Mb


"With the addition to VP6-S in Moviestar, we are providing our customers more options to provide high-resolution, full-screen video to millions of viewers worldwide," said Jen Taylor, group product manager for Flash at Adobe.

“VP6-E video remains the recommended format for […] video delivered at or below 500Kbps, and VP6-S is recommended to achieving higher resolutions ….”

*Source: www.on2.com/company/news-room/press-releases/?id=421

VP6-S


VP6 + Diffusion / Compatibility

Alpha support

Supported in Flash Lite 3

Existing media library for Flash

Low power utilization

Cue Points

VP6 vs H.264 in Flash Moviestar

H264 + Acceleration by graphic cards

High quality

Existing content already in H.264

Huge library ready (podcast + DVD)

More encoders available

VP6 - “Blockiness” (better in VP6-S?)

Fewer encoders available (VP6-S only withOn2 Flix)

H.264 - “Smoothiness”

More processor intensive

licensing determined by MPEG-LA

No cue points & alpha yet


* =Illustration from http://en.wikipedia.org/wiki/Image:Vector_Video_Standards2.png

Video standards


Video standards

HD 1080p1920 x 1080

HD 720p1280 x 720

16x

4x

1x

32x

VP6

H.264

VP6-S

Spark

Web L640 x 360

Web S320 x 180

HD 480p854 x 480

XGA1024 x 768

PAL720 x 576

SXGA1280 x 1024


2 Edit 3 Encode 4 Decode

Encoding workflow

1 Acquire

Adobe Media Encoder

Flash Video Encoder

Flash Media Encoder


Tripod to reduce camera movement

Good Lighting

Best camera possible

Moving subjects under control

Moderate use of zoom and camera movements

On-location: check video signal

Ultra: check chromakey

Shooting


Select the best scenes

Moderate use of transitions

De-interlace

Reduce video noise

Remove audio noise

Stabilize motion

Resize / remove borders

Editing and Post-producing


1. (Analyze video)

2. Determine bandwith target

3. Choose target data rate and player

4. Choose codec and encoder

5. Choose video dimensions

6. Choose frame rate

7. Set key frame interval

8. Set cue points (if needed)

9. Set audio compression

10. Alpha channel settings (if needed)

Encoding

points inspired by : http://www.flashconnections.com/?p=35


Editing Rendering Encoding

Separating Rendering from Encoding?

ARender encoded:Render each time a new encoding is required

BRender and encode:render once and encode later in multiple formats

Video high quality

Video high quality Video high qualityFormat 2

Format 1

Format 3

Format 4

Format 1

Format N.

…


1) Uncompressed formats Avi or Mov uncompressed

Tiff, Targa, PSD sequence

Video formats for Editing

2) Lossless compression QT: Animation codec 100%

Tiff sequence with LZW

3) Perceptively loss-less compression QT: Motion Jpg or Photo Jpg

Jpg sequence

4) Lossy PAL / NTSC: DV

Mpeg, all families

FLV


1. Rename .mov and .mp4 in .flv

2. In QuikTime always set prepare for streaming

3. Test and fine tune encoding settings on few seconds selection

4. Force key frame with cue point

5. Render once, encode in multiple formats

6. Animation codec at 100% = lossless!

7. Deinterlace not necessary if reducing the height to half size or smaller

8. If clients give you DVD-Video and they are the only available source just rename .vob in .mpg and open it in Premiere.

Tips & Tricks


1) codec vs containers Codec = H.264, MP3, ACC, VP6…

Container = FLV, MOV, M4V, MP4V, 3GP, 3G

Tricky concepts

2) Frame rate vs keyframe FPS = frames per seconds

Keyframe = full uncompressed image used as reference by codec

Keyframe interval = frames between keyframes

3) Frame size vs file size Frames size = pixel dimension of a

single frame

File size = KB or MB dimension of the video file on your disk


Creating FLVs – Adobe Software

Flash Professional CS3 Direct import into Flash CS3

(deprecated)

Flash Video Encoder (standalone)

Flash Video Exporter - Plug-in to enable FLV output from external encoding tools

CS3 Production Premium Premier Pro CS3

After Effects CS3 Professional


Web Small

Web Medium

Web Large

4/3 16/9 2.35/1

Web frame resolution: Standard ratios

320 x 240

480 x 360

640 x 480

320 x 180

480 x 272

640 x 360

320 x 136

480 x 204

640 x 272

standard wideFilm

Settings from the article “Best Practices for Encoding Video with the VP6 Codec”: http://www.adobe.com/devnet/flash/articles/encoding_video.html



KeyframeInterval

Frame RateFrame sizeAudio Bit Rate

Video Bit Rate

Total Bit Rate

8 sec.30/25 fps640 x 48096K stereo 504K 600KX-Large

8 sec.30/25 fps480 x 36064K mono286K350KLarge

8 sec.30/25 fps320 x 24048K mono132K180KMedium

8 sec.30/25 fps240 x 18032K mono68K100KSmall

8 sec.30/25 fps160 x 12016K mono34K50KModem –Progressive

8 sec.30/25 fps160 x 12016K mono24K40KModem –Streaming

Recommended with VP6 Codec & Low-Motion Video


Recommended with VP6 Codec & High-Motion Video

KeyframeInterval

Frame RateFrame sizeAudio Bit Rate

Video Bit Rate

Total Bit Rate

8 sec.30/24 fps640 x 48096K stereo 1304K 1400KX-Large

8 sec.30/24 fps480 x 36096K mono754K850KLarge

8 sec.30/24 fps320 x 24064K mono336K400KMedium

8 sec.30/24 fps240 x 18032K mono188K220KSmall

8 sec.30/24 fps160 x 12016K mono64K80KModem –Progressive

8 sec.30/24 fps160 x 12016K mono24K40KModem –Streaming



Creating FLVs – Third Party Software

Desktop tools: Flix from On2 Squeeze from Sorenson ProCoder from Canopus Cleaner from Autodesk

Server solutions Carbon Coder from Rhozet Agility from Anystream FlipFactory from Telestream

Hardware solutions Digital Rapids ViewCast

SDKs On2 (for VP6 video) Ffmpeg.org (for Spark video)


Sorenson Squeeze 4.5

Software: http://www.sorensonmedia.com/pages/?pageID=2


Sorenson Squeeze 4.5

Software: http://www.sorensonmedia.com/pages/?pageID=2


On2 Technologies Flix Pro

Software: http://www.on2.com/products/flix/


On2 Technologies Flix Pro

Software: http://www.on2.com/products/flix/


Flash video learning guidewww.adobe.com/devnet/flash/articles/video_guide.html

Best Practices for Encoding Video with the VP6 Codecwww.adobe.com/devnet/flash/articles/encoding_video.html

Exploring Flash Player support for high-definition H.264 video and AAC audiowww.adobe.com/devnet/flashplayer/articles/hd_video_flash_player.html

Devnet Links


Adobe Labs - Flash Player 9 Update Full-Screen Mode Demohttp://labs.adobe.com/technologies/flashplayer9/fullscreendemo/

Wiki - Flash Player:9:Update:Full-Screen Mode HWhttp://labs.adobe.com/wiki/index.php/Flash_Player:9:Update:Full-Screen_Mode_HW

Wiki - Flash Player:9:Update:H.264http://labs.adobe.com/wiki/index.php/Flash_Player:9:Update:H.264

Adobe Labs Links


What just happened to video on the web?www.kaourantin.net/2007/08/what-just-happened-to-video-on-web_20.html

Advanced Video Encoding session at Adobe Max USA 2007http://www.flashconnections.com/?p=35

Player used for demoshttp://www.jeroenwijering.com

Blog Links


THANK YOU ALL!http://labs.gantico.com/archive/2007/adobemax/

Special thanks to:

Adobe and Adobe Max team

Adobe Italia (most of all Andrea Amadeo & Matteo Oriani)

Claudia Castaldi for studio shooting

Masato Furusawa for 3D illustration

Lisa Larson-Kelley for having shared her presentation on her blog

Adobe Max 2007 - Advanced Video Encoding

Technology

vp6 codec

large settings

flash player

rights reserved

sorenson squeeze

vp6 codec

encoding video

264 amp