On Tue, 29 Apr 2008 16:04:25 +0400 t3st3r <[EMAIL PROTECTED]> babbled:
> Mikko Rauhala <[EMAIL PROTECTED]> wrote: > > > On ma, 2008-04-28 at 09:26 -0500, Tim Shannon wrote: > >> But isn't it still limited by the bandwidth available from the micro > >> SD card? Maybe I misunderstood that. > > > Yes it is. It's just that sending mpeg4 packets to the glamo takes just > > a _tiny_ bit less bandwidth than sending entire uncompressed frames. > > (Also the CPU will have more time to spend for doing the I/O.) > But anyway I have to admit that n800 which has comparable resources (400MHz > ARM11, quite big 800x480 screen with quite data slow output, SD\MMC cards > which causes a decent load on CPU on heavy I\O, etc) is able to play videos > with Mplayer pretty nice.Virtually any MP4 of "internet quality" plays > well.And even lots of CD-sized DIVX movies (someone calls this "DVD rip") are > OK without recoding, though they're wasting lots of space on card and you may > want to re-rip DVDs with more optimal parameters set or recode (the only > hardware cheat is hardware picture resizing which takes no CPU > cycles).Actually, video looks quite good and I'm pretty sure that such things > as Neo *can* play videos.At least some of them.As for hardware decoders I > have to mention that they tend to be picky in what they're willing to decode > and what thy're refuse to decode.Actually, n800's DSP MP3 decoder for example > refuses to decode certain MP3 streams."True" hardware decoders are often even > more picky and people usually hate that.Software decoders are less picky and > willing to play much more formats and even semi-bugged or semi-damaged data > (and once there is waste numbers of codecs on planet, you'll encounter such > crap sooner or later). word of warning. you may THINK the freerunner (ta02) and n800/810 are comparable devices when it comes to video. you would be wrong if you think this. they most certainly are NOT. very far from that. i have an n800 - i have done development and graphics benchmarking etc. on it. i have done the same on the neo1973 (gta01) and freerunner(gta02). though you may think they are comparable - the video buses are an order of 4x faster on the n800 for starters (from memory about 25m/s to the video card - and THAT was considered SLOW). -- Carsten Haitzler (The Rasterman) <[EMAIL PROTECTED]> _______________________________________________ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community