Hello, regarding Kronos and Jashaka, I would like to add the following:
http://www.khronos.org/consumers/product_details/jahshaka_realtime_editing_and_effects_system/ Jahshaka is an open source audio, video editing and effects system that uses the OpenGL and OpenML APIs to provide real-time functionality. It provides animation with real time 2D/3D GPU effects, morphing, 3D model support, paint and design on moving video, a non-linear editor, node-based compositing, GPU accelerated keyer, and more. Linux, OS X, and Windows are currently supported. Just tell me if it is enough for now :). Greetings, Michel Op dinsdag 7 november 2006 21:22, schreef Michel Brabants: > Hello, > > I'm just building new pc and am searching for a graphics card that is > powerfull, passively cooled, low wattage (or/and scalable wattage) has > 3D-support and has opensource drivers. Well, I hope to buy the OGP-asic :), > although it may not be so powerfull. I'm buying an ATI X550 for now ..., > altough I actually still have to check the wattage. I know I shouldhave > checked it already. I checked the wattage of an X800 card, which seems to be > ok and I'm hoping that this card is below the X800-power-usage. > Sorry to be a little bit off-topic, but I wanted to tell the above. It wasn't > easy to find one at this moment. > > Anyway, I recently also was looking at mythtb and found the following page: > http://www.mythtv.org/wiki/index.php/XvMC#Use_XvMC_For_HD_Only > > To conclude, people there seem to disable XvMC so they can't do the following > if they have it enabled: > > * BOB and onefield are the only Deinterlacing methods that work with XvMC. > * Picture in Picture, or PiP, doesn't work with XvMC. > * Editing a video is difficult to impossible with XvMC. > * Stepping though the video frame by frame can cause artifacts with XvMC. > > I don't know if anyone here knows the jashaka-project/software > (http://jahshaka.org/). It's an opensource project that creates > media-software that also tries to use the gpu very well. I believe that they > also use the gpu to decode and encode video, ... I believe that the > openlibraries-software is an important part of jashaka: > http://www.openlibraries.org/wiki/index.php/Main_Page . > > People here maybe know more about it, but I saw the following about "opengl" > on the kronos-site (http://www.khronos.org/): > > * OpenVG - The Standard for Vector Graphics Acceleration > OpenVG™ is a royalty-free, cross-platform API that provides a low-level > hardware acceleration interface for vector graphics libraries such as Flash > and SVG. OpenVG is targeted primarily at handheld devices that require > portable acceleration of high-quality vector graphics for compelling user > interfaces and text on small screen devices - while enabling hardware > acceleration to provide fluidly interactive performance at very low power > levels. > > * OpenML - The Standard for Dynamic Media Authoring > OpenML® is a royalty-free, cross-platform programming environment for > capturing, transporting, processing, displaying, and synchronizing digital > media - including 2D/3D graphics and audio/video streams. OpenML 1.0 defines > professional-grade sample-level stream synchronization, OpenGL extensions for > accelerated video processing, the MLdc™ professional display control API and > the ML™ framework for asynchronous media streaming between applications and > processing hardware. > > * OpenMAX - The Standard for Media Library Portability > OpenMAX™ is a royalty-free, cross-platform API that standardizes access to > media processing primitives used extensively in graphics, audio and image > libraries and video codecs such as MPEG-4. Currently in development, the > OpenMAX API will be shipped with processors to enable library and codec > implementers to rapidly and effectively make use of the full acceleration > potential of new silicon - regardless of the underlying hardware > architecture. > (I think that the above is interesting, certainly if you look at the > XvMc-information on the MythTv-site) > > * OpenKODE - Khronos Open Development Environment > OpenKODE® is a royalty-free set of Media Application Portability APIs for > increased native media application source portability and reduced mobile > platform fragmentation. It is a low-level C-native API layer that sits > between the device OS and any higher-level platform capabilities. The aim of > OpenKODE is to provide seamless acceleration of 2D, 3D, video and audio media > types and minimize source changes when porting games and applications between > mobile platforms such as Brew, Symbian UIQ, Series 60 and WIPI. > > * ... > > Greetings, > > Michel > > Op dinsdag 29 augustus 2006 02:42, schreef James Richard Tyrer: > > Dieter wrote: > > >>>>> d) Include a separate decoder chip. (If there is one that is > > >>>>> documented, and is usable with the architecture.) > > >>>> It could just be a CPU chip doing it in software. > > >>> Where do you get a CPU that is fast enough? > > >> IIUC, if the CPU was only used to decode MPEG video, it wouldn't need to > > >> be that fast. > > > > > > Peter says otherwise: > > > > > > } My system can't handle HD MPEG4 decoding and playback. This a Radeon > 9800X= > > > } T=20 > > > } on AGP8x, with a Athlon 64 3200+ and a gig of RAM. However, DVDs work > just= > > > } =20 > > > } fine. > > > > TI seems to think that 1 150 MHz DSP would be adequate for 480p. > > > > The TMS320DM6446-594 is supposed to do HD-TV and has a TMS320C64x™ DSP > > clocked at 594 MHz. > > > > These DSPs are rated for 8x8 iDCT: > > > > TMS320C64x 92 * num_idcts + 62 > > > > The "+" series is slightly faster: > > > > TMS320C64x+ 72 * num_idcts + 63 > > > > The assembler code for this is available: > > > > http://focus.ti.com/docs/toolsw/folders/print/sprc094.html > > > > http://focus.ti.com/en/download/dsp/c64plusbmarksasmfiles.zip > > > > I posted this: > > > > http://home.earthlink.net/~tyrerj/files/OG/idct_8x8.asm > > > > So, perhaps the issue is that the CPU needs to be a DSP. > > >
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