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Agenda
Agenda
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Optimized Playback
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Media Formats
Media Formats
Simplified Statement
Simplified Statement
Simplified Statement
Simplified Statement
Fast Transcode
Fast Transcode
PC Is Center Of The Devices Ecosystem
PC Is Center Of The Devices Ecosystem
PC Is Center Of The Devices Ecosystem
PC Is Center Of The Devices Ecosystem
Different Formats
Different Formats
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Different Formats
Hardware Transcode
Hardware Transcode
Hardware Transcode
Hardware Transcode
Hardware Transcode
Hardware Transcode
Hardware Transcode
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Hardware Transcode
Hardware Transcode
IHV Supplied MFTs
IHV Supplied MFTs
IHV Supplied MFTs
IHV Supplied MFTs
New Camera Support
New Camera Support
Wide Variety Of Support
Wide Variety Of Support
Wide Variety Of Support
Wide Variety Of Support
Developer Support
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Media Foundation Technology
Media Foundation Technology
Media Foundation Technology
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Pipeline Transcoding
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Developer Interface layers
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© 2008 Microsoft Corporation
© 2008 Microsoft Corporation
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Автор: Rudolph Balaz; Dave Marsh. Чтобы познакомиться с картинкой полного размера, нажмите на её эскиз. Чтобы можно было использовать все картинки для урока информатики, скачайте бесплатно презентацию «Video Improvements In Windows 7.pptx» со всеми картинками в zip-архиве размером 2462 КБ.

Video Improvements In Windows 7

содержание презентации «Video Improvements In Windows 7.pptx»
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1 18video streaming capture Will open up a
2Video Improvements In Windows 7. Dave whole host of webcam capture app scenarios
Marsh Principal Program Manager Lead for For webcams UVC1.1 class driver with
Media in Windows Microsoft Corporation driver extensibility Made it nice and
Rudolph Balaz Senior Program Manager Lead, simple for the user.
DirectX team Microsoft Corporation. 19Developer Support.
3This Session: GRA-T585. Windows 7 20Media Foundation Technology. Ease of
provides a rich platform for video. This use enhancements Performance enhancements
session highlights the video improvement New components such as SourceReader and
in Windows 7 and discusses how components SinkWriter Many more containers and codecs
plug into the Windows 7 video architecture Hardware pipeline support Intelligent
Topics covered will include playback and proxies MF stream capture Trusted merit
transcoding of different video formats, DirectShow and FSDK still supported, but
DirectX Video Acceleration-High Definition all new investments are on Media
(DXVA-HD), and overlays. Foundation.
4Agenda. Video playback and transcode 21Pipeline Transcoding. Media Session.
functionality Meeting ISV video rendering Media Source. Media Sink. Source Resolver.
needs. Topology & Loader. Encoding Profile
5Windows 7 Investments. Optimized Management. Scheme Handler. Byte Stream
Playback Play all the common media formats Handler. File, Network. Proc. File,
Fast transcode Make the PC the center of Network. MFT Decoder. MFT Encoder. Byte
an ecosystem of portable video player Stream. Byte Stream. or. or. Custom Input.
devices New camera support Webcams, Point Custom Output. or. Hardware Acceleration.
and shoot, and AVCHD Developer Support Webcam. Video Scaling/Conversion, Audio
Ways to access Media Foundation Processing, Other. Pipeline Topology.
technology. 22New MF Components Source Reader, Sink
6Optimized Playback. Writer. Direct access to consume, modify,
7Media Formats. Containers and Codecs and create media samples. Sink Writer.
Tenuous relationship between Popular Source Reader. Media Source. Media Sink.
format name MP4, DivX, MJPEG File Encoding Profile Mgmt. File, Network.
extension mappings .mp4, .m4a, .mp4v, File, Network. Custom Input. Custom
.mov, .avi, .divx, … Characteristics of Output. Webcam. Specific Conversions *.
container used Streaming support, markers, MFT Decoder *. Processing MFT *. MFT
… Video and audio codecs Proprietary DRM Encoder *. * Optional. Hardware
Makes the realization of “format X just Acceleration. Specify URL, Byte Stream, or
plays” rather complex. Media Source. Sync or Async Control and
8Simplified Statement. Many new popular Status. Sync or Async Control and Status.
media formats have emerged over the years, Specify URL, Byte Stream, or Media Sink.
but the average computer user couldn’t 23Developer Interface layers. Ways to
care less We've made mainstream media access MF technology Media Foundation
playback just work in Windows 7 Win7 can interfaces MF Play API and Transcode API
play these Containers MP4, AVI, MOV, 3GP, WMP.OCX WPF Silverlight For specialized
AVCHD, ADTS, M4A, DVR-MS, WTV Win7 can low level needs Raw Video Rendering
play these Codecs H.264, MPEG4-SP, interfaces. Video is just a data type
ASP/Divx/Xvid, MJPEG, DV, AAC-LC, AAC-HE Video is just a 3D texture. WPF XAML.
Efficient on power usage Efficient on low 24demo. H.264 In 3D WPF On Windows 7.
cost PCs Consistent metadata. 25demo. Play Almost Anything.
9New Inbox MF Decode Detail Additions 26demo. Drag And Drop Transcode.
relative to Vista Inbox Decoders. H.264: 27demo. Hardware Codecs.
Baseline, Main, and High Profiles @ all 28Video Improvements In Windows7.
levels IDCT, MoComp, and VLD DXVA AAC: LC Rudolph Balaz Senior Program Manager Lead,
multichannel, HE v1 (SBR), HE v2 (PS) Windows Graphics/DirectX Microsoft
MJPEG and DV native MFT decoders added for Corporation.
AVI. Generic Format Name. File Extensions. 29Media Foundation+Infrastructure. Media
Container. Video Codecs. Audio Codecs. Foundation. Source Reader. Sink Writer.
MPEG-4. .mp4 (A, V, A+V) .m4a (A). ISO Custom Output. Hardware Acceleration.
MPEG-4. H.264, MPEG-4 ASP and SP. AAC, Media Source. Media Sink. File, Network.
MP3. 3GPP/3GPP2. .3gp, .3g2 (A, V, A+V). File, Network. Encoding Profile Mgmt.
3GP. H.264, MPEG-4 SP. AAC. AAC. .aac (A). Custom Input. Direct3D. Webcam. Desktop
ADTS. AAC. ASP in AVI (compatible with Window Manager. Specific Conversions *.
DivX ® 4-6 video codec, Xvid, 3ivx. .avi MFT Decoder *. Processing MFT *. MFT
(V, A+V). AVI. MPEG-4 ASP. MP3, MS ADPCM. Encoder *. COPP/OPM. WDDM. Video Memory.
AVCHD. .m2t, .m2ts, .mts (A, V, A+V). GPU. Direct3D. DirectX Video Acceleration
MPEG-2 TS. H.264. Dolby Digital, LPCM. (DXVA). Cable. Windows Display Driver
HDV. .m2t, .m2ts, .mts (A, V, A+V). MPEG-2 Model (WDDM). Display Driver / GPU
TS. MPEG-2. MPEG-1 L2. Hardware. Display. * Optional.
10Fast Transcode. 30Third Party ISV Needs. World class
11PC Is Center Of The Devices Ecosystem. applications Robust playback Existing
PC is central media store Often you want playback applications Maybe not Media
to be able to watch the content when Foundation based Performance expectations
you're out and about Great examples of a Playback – low end hardware Power –
Portable Media Players are Sony Walkman battery life Contractual obligations.
and Creative Zen W People want simple ways 313rd Party ISV Pain points. Existing
of transferring content to devices without code bases/Legacy Desktop composition
having to be bothered with the underlying turned disabled Unexpected
complexities We have integrated great glitching/scalability On low end hardware
transcode technology into the Windows 7 Hard to meet content output rules Private
shell When you do a drag and drop on your App to Driver side channels Business
device, the necessary conversions happen requirements.
automatically. 32Addressing 3rd Party Requirements In
12Different Formats. Different portable Windows 7.
video players need different video formats 33Publishing OPM. Addressing Legacy
Format needed will not be format in which issues OPM (Output Protection Management)
video is stored on PC Format on your PC Specification and headers Usable directly
will be whatever format content was by applications DirectShow or Media
delivered in Typically TV is MPEG2 More Foundation or other… Updated base on new
and more in the future it'll be HD industry requirements Supports for Display
resolution Typically, portable video Clone, HDMI repeaters.
devices need a lower resolution format to 34Reducing Private Side Channels.
match their screens More and more in the Preventing Screen Scraping D3D9Ex/DWM
future they'll use H.264 video and AAC enhancements Driver software protection
audio Change format of video and audio IHV Implementation using public interfaces
content as part of the process of Hardware based protection AES 128 for
transferring content from PC store to Encryption between CPU/GPU Support for
device. hardware crypto engines SHED scenarios.
13Simple For User, Complex Underneath. 35Use Of Overlays In playback. The bad
User doesn't even have to think about Desktop Composition disabled Video Memory
transcode The whole process just looks Pinned Available only via Legacy API’s
like a drag and drop file copy Topology of Hardware issues Hardware
Media Foundation building blocks (Availability/features) Only one overlay
underneath that… Reads the source such as The good Proven code in existing apps
a recorded HDTV file Decodes using eg an Assumed to be faster/more secure?
MPEG2 decoder Processes it to get it into 36Embracing - Overlay Support. Supported
the resolution that the portable player with Desktop Composition Improved user
needs Encodes it using the codec that the experience No flashes No per frame
portable player supports, eg H.264/AAC in composition costs Available via D3D9 APIs
MP4 container Only problem is that it Simplifies code paths in application
takes a while to do all this processing if Simplifies use with existing applications.
doing it on the CPU But we have hardware 37Optimizations Playback. Memory
encode support to solve this. pressure reporting Many processes compete
14New Inbox MF Encode Detail Additions for Video Memory Video application
relative to Vista Inbox Encoders. H.264 typically use many buffers Enable
Baseline profile level 3 with 1-pass CBR applications to optimize playback by
Bit rate up to 1.5Mbps Maximum size: 640 x reducing buffering Can result in smoother
480, maximum frame rate: 30fps AAC LC playback.
stereo with 44.1 or 48KHz sample rate 96, 38Optimizations Playback. D3D9 Flip
128, 160, or 192KHz bit rate. Generic model Improves Composition Performance
Format Name. File Extensions. Container. (similar to overlay) Reduces memory
Video Codecs. Audio Codecs. MPEG-4. .mp4 bandwidth needs Full screen exclusive with
(A, V, A+V) .m4a (A). ISO MPEG-4. H.264 DWM Eliminates flash MCE can be full
Baseline. AAC-LC. 3GPP/3GPP2. .3gp, .3g2 screen with composition.
(A, V, A+V). 3GP. H.264 Baseline. AAC-LC. 39Optimizing Playback. DXVA-HD - Extends
15Hardware Transcode. Lots of processing DXVA HD video processing and composition
needed to transcode a file Transcoding a models Examples BD, ISDB-T Standardized
whole movie using software based application Interfaces Drivers provide
processing can take a couple of hours, different private implementations
even on a very fast processor Taking a Available via Windows 7 optimized drivers
long time to process is incompatible with WDDM 1.1 optional driver features.
the desire to hide all the transcode 40Call To Action. Use the new video
rigmarole from the user New class of chips format support Use the shell drag and drop
coming along that provide hardware codecs Make use of the new camera support Make
These chips provide high speed use of Media Foundation technology in your
transcoding, ie hardware decoding of the own apps Make use of playback
input format, and hardware scaling, and optimizations DXVA-HD, D3D9 Flip, Overlays
hardware encoding to a different output OPM, AES128, etc…
format Also additional features to allow 41Additional Resources. Media Foundation
ISVs to provide better Blu-ray player apps http://msdn.microsoft.com/en-us/library/ms
Various companies will be launching 94197(VS.85).aspx DirectShow
Hardware Codec chips These chips will be http://msdn.microsoft.com/en-us/library/ms
packaged as plugin modules Chips will also 83323(VS.85).aspx DirectX
go onto motherboards Even better is to http://msdn.microsoft.com/directx
make it a standard motherboard chipset Whitepapers
feature. http://www.microsoft.com/whdc/device/displ
16IHV Supplied MFTs. AV-Stream is the y/ Related Sessions GRA-T515: DirectX –
preferred way It’s the easiest way, but Core Graphics for Windows 7 GRA-T518: WDDM
not the only way Or third parties can v1.1 GRA-T634: GPU Performance and GPU/CPU
produce their own MFT and use a private Interactions in Windows 7 MBL-T579:
interface to communicate with their Connecting Projectors and Using Docking
hardware Conform to the MFT input/output Stations with Windows 7.
interfaces so that it looks like a 42© 2008 Microsoft Corporation. All
software decoder or encoder Expose decode rights reserved. Microsoft, Windows,
and encode as separate MFTs Codec Windows Vista and other product names are
certification for hardware accelerated or may be registered trademarks and/or
MFTs will provide mechanism for topology trademarks in the U.S. and/or other
builder to choose them Provides robust way countries. The information herein is for
to know supplier and know it really is informational purposes only and represents
hardware Tied to new robust merit scheme the current view of Microsoft Corporation
Uses PVP-OPM-like embedded challenge as of the date of this presentation.
certificate Best to store certificate in Because Microsoft must respond to changing
hardware, but can be obfuscated in driver. market conditions, it should not be
17New Camera Support. interpreted to be a commitment on the part
18Wide Variety Of Support. Play and of Microsoft, and Microsoft cannot
transcode whole range of formats that come guarantee the accuracy of any information
from cameras Camcorders using AVCHD provided after the date of this
container H.264 in MP4 from next year’s presentation. MICROSOFT MAKES NO
‘still’ cameras FlipVideo using Xvid In WARRANTIES, EXPRESS, IMPLIED OR STATUTORY,
the past you would have had to install a AS TO THE INFORMATION IN THIS
special separate app Media Foundation PRESENTATION.
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