Re: Anti Iphone (Was Re: Some light ahead...)
On 5/2/07, Casper van Donderen [EMAIL PROTECTED] wrote: http://www.mesdigital.com/english/Products/product_mmsp2.asp I think this chip is pretty opensource since it is used in the GP2X I don't want to pay money to micro$oft for wma support, so I do _not_ want that chip. Anyway I guess it is full of bug: MP3, WMA Decode Codec : Support from Microsoft¢ç (porting Windows¢ç CE.NET) MPEG1 Layer 12 Codec : Support from Microsoft¢ç (porting Windows¢ç CE.NET) G.711, ADPCM Codec : Support from Microsoft¢ç (porting Windows¢ç CE.NET) And I do not think it is open source ___ OpenMoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Anti Iphone (Was Re: Some light ahead...)
Flemming Richter Mikkelsen wrote: On 5/2/07, Casper van Donderen [EMAIL PROTECTED] wrote: http://www.mesdigital.com/english/Products/product_mmsp2.asp I think this chip is pretty opensource since it is used in the GP2X I don't want to pay money to micro$oft for wma support, so I do _not_ want that chip. Anyway I guess it is full of bug: MP3, WMA Decode Codec : Support from Microsoft¢ç (porting Windows¢ç CE.NET) MPEG1 Layer 12 Codec : Support from Microsoft¢ç (porting Windows¢ç CE.NET) G.711, ADPCM Codec : Support from Microsoft¢ç (porting Windows¢ç CE.NET) And I do not think it is open source I guess this one would be better, but I don't know how they distribute drivers. The problem with powervr is that they just provide IP. So I assume it depends on the manufacturers then (I'm afraid most of them are working in a quite closed development) : http://www.imgtec.com/PowerVR/products/Video/MVDA2/index.asp The bad point of this kind of chip are the limited amount of supported codecs, so this kind below would be better ; also because it's OpenGL|ES 2.0 compatible ;) [...] Video processing for free, with the real-time programmable architecture providing extensive accelerated functions support for multi-standard video decode and encode. -- ak vertexfragment shaders that seems to be extended in this chip to access other kind of resources (maybe a kind of fast texture wrapper around raw video blocks ?). http://www.imgtec.com/PowerVR/products/Graphics/SGX/index.asp?Page=2 Now I think the main problem would be the price of a chip like that. Why not use an FPGA with a bunch of arithmetic operations widely used in audio / video compression (eg. DCT) and write a media library that forward most of the job on the FPGA. I don't know if there is more complete solutions available, but the basic idea is here : http://www.opencores.org/projects.cgi/web/video_systems/overview (well I don't have the whole mailing list archived here, so it has maybe been already mentioned before) ___ OpenMoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Size and weight considerations for future Openmoko devices
On Friday 04 May 2007 06:09, Hans L wrote: out. AFAIK Stereo sound works best when the sources are far apart, but in this case they are essentially coming from the same point in space. IMBWOTO, but the idea of small stereo devices is that the two speakers emit sound in different directions, and since this is usually done indoors, the paths of the channels will be different bouncing off walls and thus you will hear a stereo effect (it is not a question how much apart the sources are, but rather how different the sound is at your left and right ear). Outdoor use or use in rooms with bad audio characteristics will hinder this approach, of course. ___ OpenMoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Size and weight considerations for future Openmoko devices
My experience was very different. My Tapwave Zodiac (best portable thing ever made... *sigh*) had awesome stereo sound, even without headphones. It's also quite noticable with other devices whether they have stereo sound or not. The problem with the 1973 is that it will probably be rotated a lot. You'll watch movies in widescreen. Two speakers above each other won't really help there. But maybe the third speaker will be used in that case? No idea if it's powerfull enough and possible with the hardware... Ortwin On 5/4/07, Hans L [EMAIL PROTECTED] wrote: I know at least one simple fix for shaving off a few grams. IMO there is really no reason to have *two* speakers in the phone. Take one out. AFAIK Stereo sound works best when the sources are far apart, but in this case they are essentially coming from the same point in space. ___ OpenMoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community ___ OpenMoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
