DOCSLIB.ORG

Openmax AL, Opensl ES Native Multimedia in Android

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Openmax AL, Opensl ES Native Multimedia in Android OpenMAX AL, OpenSL ES Native Multimedia in Android Erik Noreke Chair of OpenMAX AL and OpenSL ES Working Groups © Copyright Khronos Group, 2011 - Page 1 Why Create Khronos Multimedia APIs? Khronos APIs Open Source Framework • Conformance Tests • Free to change • Portable • Every implementation unique • IP Protection • GPL license • Profiles & Components • Plugins • Predictable set of functionality • Functionality dependent on implementation © Copyright Khronos Group, 2011 - Page 2 & Application Access Layer © Copyright Khronos Group, 2011 - Page 3 The Need for Application Access • Hardware and low level access is powerful but complex - More power than most application developers require • Most application developers just want to playback and record media - Specifying where the content comes from and is rendered to - Manipulate a few playback controls - Have simple configurability © Copyright Khronos Group, 2011 - Page 4 The Need for Application Access • That are what OpenMAX AL and OpenSL ES provide… - Simple high-level multimedia APIs for playback and recording use cases - With hardware acceleration capabilities built in • …With Cross-platform portability - No need to rewrite an application for every platform © Copyright Khronos Group, 2011 - Page 5 OpenMAX AL Focused on Streaming Media • Media playback and recording - Playback and recording of everything from video files to radio to camera input • Full range of video effects and controls – including playback rate, post processing, and image manipulation - Apply advanced effects to captured images and video before sending to friends © Copyright Khronos Group, 2011 - Page 6 OpenMAX AL Focused on Streaming Media • OpenMAX AL gives easy access to streaming media - Allowing time to be spent on developing applications, not using frameworks • Designed as a complete set of multimedia functionality - Unlike any other streaming media API © Copyright Khronos Group, 2011 - Page 7 OpenSL ES – Powerful Mobile Audio • Full range of effects and controls, including advanced 3D effects such as Doppler and virtualization - Experience rich, enhanced sound from locations other than the handset, even moving, for the ultimate multimedia experience • Create theater quality audio experience - In a mobile device! © Copyright Khronos Group, 2011 - Page 8 OpenSL ES – Powerful Mobile Audio • Full 3D audio functionality enhances any gaming experience - Perfect companion to OpenGL ES • Designed for implementation by either a hardware or software solution - Take full advantage of system capabilities © Copyright Khronos Group, 2011 - Page 9 Object Oriented Media Access • Simplified object-oriented streaming media - Built to enable common use cases - But also has access to advanced functionality • Media Objects enable PLAY and RECORD of content - Media Objects input and output to Devices - Perform some operation on an input and emit the result as output • Objects have control interfaces - Play, Record, Seek, Rate Media Input Audio Mix Camera (AL) Display Window (AL) URI DSrc Player Object DSnk URI Memory Memory Content pipe Content pipe © Copyright Khronos Group, 2011 - Page 10 OpenMAX AL & OpenSL ES © Copyright Khronos Group, 2011 - Page 11 OpenSL ES and OpenMAX AL • Working groups collaborated to define the common API functionality • Independent, Compatible, Consistent and Distinct Video 3D Audio playback Audio Video Playback recording Audio Effects Radio and RDS Audio Advanced Recording Camera MIDI Basic Image capture Buffer MIDI & display queues © Copyright Khronos Group, 2011 - Page 12 Why Profiles? • Functionality divided into basic groups - Most common groupings • Profiles reduce fragmentation - Not all devices support all functionality - Only support the profiles you need • Applications can query available profiles - To adapt to the current device - Facilitates porting of applications © Copyright Khronos Group, 2011 - Page 13 Why Profiles? • Profiles can be combined - To best suit any product • Optional features - Some features are optional in all profiles - APIs are consistent when feature is available © Copyright Khronos Group, 2011 - Page 14 OpenSL ES and OpenMAX AL • Independent - But designed to work together - No dependency between the APIs – either one can exist by itself • Compatible - Working groups collaborated to make sure the APIs work together well © Copyright Khronos Group, 2011 - Page 15 OpenSL ES and OpenMAX AL • Consistent - Identical API architecture - Identical APIs for same functionality • Distinct - OpenMAX AL represents basic multimedia functionality (audio, video, and image) - OpenSL ES represents advanced audio functionality © Copyright Khronos Group, 2011 - Page 16 Complete Multimedia Use-Case Audio stream to DSP 3D Audio Rendering Multimedia Application Processing on CPU Video stream to GPU OpenGL ES EGLStream GL_TEXURE_EXTERN OpenGL ES EGLSurface AL_OES texture Much more flexibility than just “show a video” © Copyright Khronos Group, 2011 - Page 17 Android NDK for Multimedia • NDK – Native Development Kit • Introduced in Android 2.3 Gingerbread Advanced Audio Mobile 3D © Copyright Khronos Group, 2011 - Page 18 Why the NDK? • Better control of fuctionality and timing • Access to hardware acceleration • Multimedia is the primary reason for the NDK • Increases application complexity • Requires compilation for each platform family - ARMv5TE - ARMv7-A - x86 instructions © Copyright Khronos Group, 2011 - Page 19 Focus is on Standardized APIs • Earlier internal APIs not stable enough… • Avoid fragmentation • Well tested and documented • Focus on functionality - Not on implementation • Access to hardware acceleration © Copyright Khronos Group, 2011 - Page 20 Native Multimedia APIs in Android 2.3 • OpenGL ES 2.0 • EGL 1.4 • OpenSL ES 1.0.1 - Partial implementation Mobile 3D - Almost complete Phone + Music profiles - Buffer queues from 1.1 as Android extension - Google version compliant as far as implemented - Other vendors offer fully compliant solution Graphics Context Advanced Audio Management © Copyright Khronos Group, 2011 - Page 21 Ice Cream Sandwich – Android 4.0 • Same OS for both phones and tablets • Better multitasking • Better support for hardware accelerated graphics • DRM • Partial OpenMAX AL 1.0.1 implementation - Streaming use-case only - Does not interoperate with OpenSL ES Streaming Media © Copyright Khronos Group, 2011 - Page 22 Android & OpenMAX IL • Android uses OpenMAX IL in their Multimedia framework - Codecs only - No graph building • Main Multimedia framework is still Stagefright - Introduced in Éclair • Allows for both software implemented and hardware accelerated codecs • Not part of NDK - Not intended to be accessible from applications © Copyright Khronos Group, 2011 - Page 23 What is Google saying? © Copyright Khronos Group, 2011 - Page 24 What is Google saying? © Copyright Khronos Group, 2011 - Page 25 What is Google saying? © Copyright Khronos Group, 2011 - Page 26 Where is Android Headed? • More Devices - TVs? - Netbooks? - Chrome OS? • What does the future hold? - Compliant OpenSL ES? - Better OpenMAX AL support? - OpenMAX AL EGL Stream Extension? - Support for OpenCL? - Content Pipes? © Copyright Khronos Group, 2011 - Page 27 Thank You © Copyright Khronos Group, 2011 - Page 28 .
Load more

Recommended publications
  • GLSL 4.50 Spec
    The OpenGL® Shading Language Language Version: 4.50 Document Revision: 7 09-May-2017 Editor: John Kessenich, Google Version 1.1 Authors: John Kessenich, Dave Baldwin, Randi Rost Copyright (c) 2008-2017 The Khronos Group Inc. All Rights Reserved. This specification is protected by copyright laws and contains material proprietary to the Khronos Group, Inc. It or any components may not be reproduced, republished, distributed, transmitted, displayed, broadcast, or otherwise exploited in any manner without the express prior written permission of Khronos Group. You may use this specification for implementing the functionality therein, without altering or removing any trademark, copyright or other notice from the specification, but the receipt or possession of this specification does not convey any rights to reproduce, disclose, or distribute its contents, or to manufacture, use, or sell anything that it may describe, in whole or in part. Khronos Group grants express permission to any current Promoter, Contributor or Adopter member of Khronos to copy and redistribute UNMODIFIED versions of this specification in any fashion, provided that NO CHARGE is made for the specification and the latest available update of the specification for any version of the API is used whenever possible. Such distributed specification may be reformatted AS LONG AS the contents of the specification are not changed in any way. The specification may be incorporated into a product that is sold as long as such product includes significant independent work developed by the seller. A link to the current version of this specification on the Khronos Group website should be included whenever possible with specification distributions.
    [Show full text]
  • Computer Graphics on Mobile Devices
    Computer Graphics on Mobile Devices Bruno Tunjic∗ Vienna University of Technology Figure 1: Different mobile devices available on the market today. Image courtesy of ASU [ASU 2011]. Abstract 1 Introduction Computer graphics hardware acceleration and rendering techniques Under the term mobile device we understand any device designed have improved significantly in recent years. These improvements for use in mobile context [Marcial 2010]. In other words this term are particularly noticeable in mobile devices that are produced in is used for devices that are battery-powered and therefore physi- great amounts and developed by different manufacturers. New tech- cally movable. This group of devices includes mobile (cellular) nologies are constantly developed and this extends the capabilities phones, personal media players (PMP), personal navigation devices of such devices correspondingly. (PND), personal digital assistants (PDA), smartphones, tablet per- sonal computers, notebooks, digital cameras, hand-held game con- soles and mobile internet devices (MID). Figure 1 shows different In this paper, a review about the existing and new hardware and mobile devices available on the market today. Traditional mobile software, as well as a closer look into some of the most important phones are aimed at making and receiving telephone calls over a revolutionary technologies, is given. Special emphasis is given on radio link. PDAs are personal organizers that later evolved into de- new Application Programming Interfaces (API) and rendering tech- vices with advanced units communication, entertainment and wire- niques that were developed in recent years. A review of limitations less capabilities [Wiggins 2004]. Smartphones can be seen as a that developers have to overcome when bringing graphics to mobile next generation of PDAs since they incorporate all its features but devices is also provided.
    [Show full text]
  • Report of Contributions
    X.Org Developers Conference 2020 Report of Contributions https://xdc2020.x.org/e/XDC2020 X.Org Developer … / Report of Contributions State of text input on Wayland Contribution ID: 1 Type: not specified State of text input on Wayland Wednesday, 16 September 2020 20:15 (5 minutes) Between the last impromptu talk at GUADEC 2018, text input on Wayland has become more organized and more widely adopted. As before, the three-pronged approach of text_input, in- put_method, and virtual keyboard still causes confusion, but increased interest in implementing it helps find problems and come closer to something that really works for many usecases. The talk will mention how a broken assumption causes a broken protocol, and why we’re notdone with Wayland input methods yet. It’s recommended to people who want to know more about the current state of input methods on Wayland. Recommended background: aforementioned GUADEC talk, wayland-protocols reposi- tory, my blog: https://dcz_self.gitlab.io/ Code of Conduct Yes GSoC, EVoC or Outreachy No Primary author: DCZ, Dorota Session Classification: Demos / Lightning talks I Track Classification: Lightning Talk September 30, 2021 Page 1 X.Org Developer … / Report of Contributions IGT GPU Tools 2020 Update Contribution ID: 2 Type: not specified IGT GPU Tools 2020 Update Wednesday, 16 September 2020 20:00 (5 minutes) Short update on IGT - what has changed in the last year, where are we right now and what we have planned for the near future. IGT GPU Tools is a collection of tools and tests aiding development of DRM drivers. It’s widely used by Intel in its public CI system.
    [Show full text]
  • Blackberry QNX Multimedia Suite
    PRODUCT BRIEF QNX Multimedia Suite The QNX Multimedia Suite is a comprehensive collection of media technology that has evolved over the years to keep pace with the latest media requirements of current-day embedded systems. Proven in tens of millions of automotive infotainment head units, the suite enables media-rich, high-quality playback, encoding and streaming of audio and video content. The multimedia suite comprises a modular, highly-scalable architecture that enables building high value, customized solutions that range from simple media players to networked systems in the car. The suite is optimized to leverage system-on-chip (SoC) video acceleration, in addition to supporting OpenMAX AL, an industry open standard API for application-level access to a device’s audio, video and imaging capabilities. Overview Consumer’s demand for multimedia has fueled an anywhere- o QNX SDK for Smartphone Connectivity (with support for Apple anytime paradigm, making multimedia ubiquitous in embedded CarPlay and Android Auto) systems. More and more embedded applications have require- o Qt distributions for QNX SDP 7 ments for audio, video and communication processing capabilities. For example, an infotainment system’s media player enables o QNX CAR Platform for Infotainment playback of content, stored either on-board or accessed from an • Support for a variety of external media stores external drive, mobile device or streamed over IP via a browser. Increasingly, these systems also have streaming requirements for Features at a Glance distributing content across a network, for instance from a head Multimedia Playback unit to the digital instrument cluster or rear seat entertainment units. Multimedia is also becoming pervasive in other markets, • Software-based audio CODECs such as medical, industrial, and whitegoods where user interfaces • Hardware accelerated video CODECs are increasingly providing users with a rich media experience.
    [Show full text]
  • The Opencl Specification
    The OpenCL Specification Version: 2.0 Document Revision: 22 Khronos OpenCL Working Group Editor: Aaftab Munshi Last Revision Date: 3/18/14 Page 1 1. INTRODUCTION ............................................................................................................... 10 2. GLOSSARY ......................................................................................................................... 12 3. THE OPENCL ARCHITECTURE .................................................................................... 23 3.1 Platform Model ................................................................................................................................ 23 3.2 Execution Model .............................................................................................................................. 25 3.2.1 Execution Model: Mapping work-items onto an NDRange ........................................................................28 3.2.2 Execution Model: Execution of kernel-instances ........................................................................................30 3.2.3 Execution Model: Device-side enqueue ......................................................................................................31 3.2.4 Execution Model: Synchronization .............................................................................................................32 3.2.5 Execution Model: Categories of Kernels ....................................................................................................33 3.3 Memory
    [Show full text]
  • 414 Advances in Opengl ES for Ios 5 V3 DD F
    Advances in OpenGL ES for iOS 5 Session 414 Gokhan Avkarogullari Eric Sunalp iPhone GPU Software These are confidential sessions—please refrain from streaming, blogging, or taking pictures 1 iPad 2 2 3 Per Pixel Lighting/ Normal Maps 4 LightMaps GlossMaps SpecularMaps 5 Dynamic Shadows 6 MSAA 7 Higher Poly Models 8 GLKit New Features 9 GLKit New Features 10 OpenGL ES 2.0 Molecules.app OpenGL ES 1.1 OpenGL ES 2.0 11 GLKit Goals • Making life easier for the developers ■ Find common problems ■ Make solutions available • Encourage unique look ■ Fixed-function pipeline games look similar ■ Shaders to rescue ■ How about porting 12 GLKit GLKTextureLoader GLKTextureLoader • Give a reference—get an OpenGL Texture Object • No need to deal ImageIO, CGImage, libjpg, libpng… 13 GLKit GLKView and GLKViewController GLKTextureLoader GLKView/ViewController • First-class citizen of UIKit hierarchy • Encapsulates FBOs, display links, MSAA management… 14 GLKit GLKMath GLKTextureLoader GLKView/ViewController GLKMath • 3D Graphics math library • Matrix stack, transforms, quaternions… 15 GLKit GLKEffects GLKTextureLoader GLKView/ViewController GLKMath GLKEffects • Fixed-function pipeline features implemented in ES 2.0 context 16 GLKTextureLoader 17 GLKTextureLoader Overview • Makes texture loading simple • Supports common image formats ■ PNG, JPEG, TIFF, etc. • Non-premultiplied data stays non-premultiplied • Cubemap texture support • Convenient loading options ■ Force premultiplication ■ Y-flip ■ Mipmap generation 18 GLKTextureLoader Basic usage • Make an EAGLContext
    [Show full text]
  • Openbricks Embedded Linux Framework - User Manual I
    OpenBricks Embedded Linux Framework - User Manual i OpenBricks Embedded Linux Framework - User Manual OpenBricks Embedded Linux Framework - User Manual ii Contents 1 OpenBricks Introduction 1 1.1 What is it ?......................................................1 1.2 Who is it for ?.....................................................1 1.3 Which hardware is supported ?............................................1 1.4 What does the software offer ?............................................1 1.5 Who’s using it ?....................................................1 2 List of supported features 2 2.1 Key Features.....................................................2 2.2 Applicative Toolkits..................................................2 2.3 Graphic Extensions..................................................2 2.4 Video Extensions...................................................3 2.5 Audio Extensions...................................................3 2.6 Media Players.....................................................3 2.7 Key Audio/Video Profiles...............................................3 2.8 Networking Features.................................................3 2.9 Supported Filesystems................................................4 2.10 Toolchain Features..................................................4 3 OpenBricks Supported Platforms 5 3.1 Supported Hardware Architectures..........................................5 3.2 Available Platforms..................................................5 3.3 Certified Platforms..................................................7
    [Show full text]
  • Khronos Data Format Specification
    Khronos Data Format Specification Andrew Garrard Version 1.3.1 2020-04-03 1 / 281 Khronos Data Format Specification License Information Copyright (C) 2014-2019 The Khronos Group Inc. All Rights Reserved. This specification is protected by copyright laws and contains material proprietary to the Khronos Group, Inc. It or any components may not be reproduced, republished, distributed, transmitted, displayed, broadcast, or otherwise exploited in any manner without the express prior written permission of Khronos Group. You may use this specification for implementing the functionality therein, without altering or removing any trademark, copyright or other notice from the specification, but the receipt or possession of this specification does not convey any rights to reproduce, disclose, or distribute its contents, or to manufacture, use, or sell anything that it may describe, in whole or in part. This version of the Data Format Specification is published and copyrighted by Khronos, but is not a Khronos ratified specification. Accordingly, it does not fall within the scope of the Khronos IP policy, except to the extent that sections of it are normatively referenced in ratified Khronos specifications. Such references incorporate the referenced sections into the ratified specifications, and bring those sections into the scope of the policy for those specifications. Khronos Group grants express permission to any current Promoter, Contributor or Adopter member of Khronos to copy and redistribute UNMODIFIED versions of this specification in any fashion, provided that NO CHARGE is made for the specification and the latest available update of the specification for any version of the API is used whenever possible.
    [Show full text]
  • Gstreamer and Dmabuf
    GStreamer and dmabuf OMAP4+ graphics/multimedia update Rob Clark Outline • A quick hardware overview • Kernel infrastructure: drm/gem, rpmsg+dce, dmabuf • Blinky s***.. putting pixels on the screen • Bringing it all together in GStreamer A quick hardware overview DMM/Tiler • Like a system-wide GART – Provides a contiguous view of memory to various hw accelerators: IVAHD, ISS, DSS • Provides tiling modes for enhanced memory bandwidth efficiency – For initiators like IVAHD which access memory in 2D block patterns • Provides support for rotation – Zero cost rotation for DSS/ISS access in 0º/90º/180º/270º orientations (with horizontal or vertical reflection) IVA-HD • Multi-codec hw video encode/decode – H.264 BP/MP/HP encode/decode – MPEG-4 SP/ASP encode/decode – MPEG-2 SP/MP encode/decode – MJPEG encode/decode – VC1/WMV9 decode – etc DSS – Display Subsystem • Display Subsystem – 4 video pipes, 3 support scaling and YUV – Any number of video pipes can be attached to one of 3 “overlay manager” to route to a display Kernel infrastructure: drm/gem, rpmsg+dce, dmabuf DRM Overview • DRM → Direct Rendering Manager – Started life heavily based on x86/desktop graphics card architecture – But more recently has evolved to better support ARM and other SoC platforms • KMS → Kernel Mode Setting – Replaces fbdev for more advanced display management – Hotplug, multiple display support (spanning/cloning) – And more recently support for overlays (planes) • GEM → Graphics Execution Manager – But the important/useful part here is the graphics/multimedia buffer management DRM - KMS • Models the display hardware as: – Connector → the thing that the display connects to • Handles DDC/EDID, hotplug detection – Encoder → takes pixel data from CRTC and encodes it to a format suitable for connectors • ie.
    [Show full text]
  • Webgl: the Standard, the Practice and the Opportunity Web3d Conference August 2012
    WebGL: The Standard, the Practice and the Opportunity Web3D Conference August 2012 © Copyright Khronos Group 2012 | Page 1 Agenda and Speakers • 3D on the Web and the Khronos Ecosystem - Neil Trevett, NVIDIA and Khronos Group President • Hands On With WebGL - Ken Russell, Google and WebGL Working Group Chair © Copyright Khronos Group 2012 | Page 2 Khronos Connects Software to Silicon • Khronos APIs define processor acceleration capabilities - Graphics, video, audio, compute, vision and sensor processing APIs developed today define the functionality of platforms and devices tomorrow © Copyright Khronos Group 2012 | Page 3 APIs BY the Industry FOR the Industry • Khronos standards have strong industry momentum - 100s of man years invested by industry leading experts - Shipping on billions of devices and multiple operating systems • Khronos is OPEN for any company to join and participate - Standards are truly open – one company, one vote - Solid legal and Intellectual Property framework for industry cooperation - Khronos membership fees to cover expenses • Khronos APIs define core device acceleration functionality - Low-level “Foundation” functionality needed on every platform - Rigorous conformance tests for cross-vendor consistency • They are FREE - Members agree to not request royalties Silicon Software © Copyright Khronos Group 2012 | Page 4 Apple Over 100 members – any company worldwide is welcome to join Board of Promoters © Copyright Khronos Group 2012 | Page 5 API Standards Evolution WEB INTEROP, VISION MOBILE AND SENSORS DESKTOP OpenVL New API technology first evolves on high- Mobile is the new platform for Apps embrace mobility’s end platforms apps innovation. Mobile unique strengths and need Diverse platforms – mobile, TV, APIs unlock hardware and complex, interoperating APIs embedded – mean HTML5 will conserve battery life with rich sensory inputs become increasingly important e.g.
    [Show full text]
  • Opengl SC 2.0?
    White Paper: Should You Be Using OpenGL SC 2.0? Introduction Ten years after the release of the first OpenGL® safety certifiable API specification the Khronos Group, the industry group responsible for graphics and video open standards, has released a new OpenGL safety certifiable specification, OpenGL SC 2.0. While both OpenGL SC 2.0 and the earlier safety critical OpenGL specification, OpenGL SC 1.0.1, provide high performance graphics interfaces for creating visualization and user interfaces, OpenGL SC 2.0 enables a higher degree of application capability with new levels of performance and control. This white paper will introduce OpenGL SC 2.0 by providing context in relationship to existing embedded OpenGL specifications, the differences compared to the earlier safety certifiable OpenGL specification, OpenGL SC 1.0.1 and an overview of new capabilities. Overview of OpenGL Specifications OpenGL Graphics Language (the GL in OpenGL) Application Programming Interfaces (API) is an open specification for developing 2D and 3D graphics software applications. There are three main profiles of the OpenGL specifications. OpenGL – desktop OpenGL ES – Embedded Systems OpenGL SC – Safety Critical From time to time the desktop OpenGL specification was updated to incorporate new extensions which are widely supported by Graphics Processing Unit (GPU) vendors reflecting new GPU capabilities. The embedded systems OpenGL specification branches from the desktop OpenGL specification less frequently and is tailored to embedded system needs. The safety critical OpenGL specification branches from the embedded systems OpenGL specifications and is further tailored for safety critical embedded systems. Figure 1 shows the high level relationship between the OpenGL specifications providing cross-platform APIs for full-function 2D and 3D graphics on embedded systems.
    [Show full text]
  • The Openvx™ Specification
    The OpenVX™ Specification Version 1.2 Document Revision: dba1aa3 Generated on Wed Oct 11 2017 20:00:10 Khronos Vision Working Group Editor: Stephen Ramm Copyright ©2016-2017 The Khronos Group Inc. i Copyright ©2016-2017 The Khronos Group Inc. All Rights Reserved. This specification is protected by copyright laws and contains material proprietary to the Khronos Group, Inc. It or any components may not be reproduced, republished, distributed, transmitted, displayed, broadcast or otherwise exploited in any manner without the express prior written permission of Khronos Group. You may use this specifica- tion for implementing the functionality therein, without altering or removing any trademark, copyright or other notice from the specification, but the receipt or possession of this specification does not convey any rights to reproduce, disclose, or distribute its contents, or to manufacture, use, or sell anything that it may describe, in whole or in part. Khronos Group grants express permission to any current Promoter, Contributor or Adopter member of Khronos to copy and redistribute UNMODIFIED versions of this specification in any fashion, provided that NO CHARGE is made for the specification and the latest available update of the specification for any version of the API is used whenever possible. Such distributed specification may be re-formatted AS LONG AS the contents of the specifi- cation are not changed in any way. The specification may be incorporated into a product that is sold as long as such product includes significant independent work developed by the seller. A link to the current version of this specification on the Khronos Group web-site should be included whenever possible with specification distributions.
    [Show full text]