#qi-hardware IRC log for Wednesday, 2011-12-07

whitequarkDocScrutinizer: do you mean that they essentially have two copies of Linux running, one on BP and one on AP?00:11
DocScrutinizer51there's no AP00:16
DocScrutinizer51and BB runs OSE00:16
whitequarkDocScrutinizer51: this one? http://en.wikipedia.org/wiki/Operating_System_Embedded00:51
wolfsprauljust wondering about a good lossless compression format for video05:34
wolfspraulfor music it seems to be FLAC, but for videos?05:34
wolfspraulfree one of course, who would want anything else? :-)05:35
wolfspraulhttp://en.wikipedia.org/wiki/List_of_codecs#Lossless_compression05:35
wolfspraul"ask google" has become "ask wikipedia"05:35
xiangfufile "Movie_00_(111102)_Naihanli_Crates.m2t"05:38
xiangfuMovie_00_(111102)_Naihanli_Crates.m2t: MPEG transport stream data05:38
DocScrutinizerwhitequark: http://de.wikipedia.org/wiki/Enea_AB05:38
wolfspraulseems the ffmpeg FFV1 is a good candidate05:41
DocScrutinizerwhitequark: sp yes, enea OSE05:42
DocScrutinizerso*05:42
wolfspraullossless movie compression, free encoder and decoder, developed as part of the ffmpeg project05:42
wolfspraulstill trying to find out how active this is. there is another one 'snow codec' but supposedly stalled?05:42
wolfspraulwe should ask David - dvdk where are you? :-)05:43
wolfspraul(sometimes he magically comes into the channel when his name is called :-))05:43
DocScrutinizerhttp://www.enea.com/ose05:44
wolfspraullossless motion jpeg 2000, another option...05:45
wolfspraullossless dirac05:46
DocScrutinizermoo wolfspraul 05:49
wolfspraulhey :-)05:54
wolfspraulhttp://ffmpeg-users.933282.n4.nabble.com/up-to-date-lossless-codec-comparison-td3175359.html05:55
wolfspraulneed to study this some more05:55
wolfspraulffv1, dirac lossless, yuv, dpx (?)05:56
wpwrakjust a sequence of PNG ? ;-)06:04
wpwraksimple but brutal :)06:04
whitequarkDocScrutinizer: ah, so are you working at ENEA?07:11
DocScrutinizer51ericsson07:17
mthmy favorite lossless video codec is ZMBV, but that's rather specific in the kind of video it is good at (retro games, basically)07:57
mthit does get a good compression ratio if the source material is right07:58
mthand Youtube accepts it as an upload format07:58
mthit might actually perform quite well with screencasts too, as long as you don't use any fancy 3D animation effects08:00
kristianpaulcheers mirko !!11:29
Artyomhi kristianpaul20:20
kristianpaulArtyom: hello20:30
ArtyomHow is your work with namuru?20:30
kristianpauli'm debugging the issue (ignorance) i still having printing signed numbers20:31
kristianpauli just noticed your arm soc uses 16 bits bus :)20:31
kristianpauli my case i'll set all wired to 32 bits. working on it right now20:32
kristianpauland make sure the sign i put is compatible with lm3220:32
kristianpaularch manual said is two complement i think20:32
Artyomyeah, 16-bit is board limitation...20:33
kristianpaulalso i think i'll merge your osgps mode to the demo code20:34
kristianpauls/mode/mo20:34
kristianpauls/mode/mod20:34
kristianpaulthats all so far, how about your milkymist porting?20:35
Artyomwell, I found working port for digilent spartan3e board. It boots bios from flash and permits to upload programs through ethernet20:36
ArtyomI also could connect external clock from front-end20:37
kristianpaulah,soc is using single clock now, nice !20:37
Artyomnow I study wishbone and next step is to connect correlator through this bus20:38
ArtyomAnd also debugging becomes very important. So I have to learn how to debug20:39
kristianpauli asked to mwalle #milkmist, he point gdb is working 20:40
kristianpaulhw debuggin still now quite friendly, but wpwrak had step into a better way to tap wires than just writing in verilog20:41
kristianpaulArtyom: or you also mean debug namuru it self? 20:42
ArtyomI mean debugging with gdb20:42
ArtyomI had experience with gdb only from eclipse20:43
kristianpauli have zero20:43
kristianpaulwell i think once i copy and paste something that allow me to run a code step by step, not sure if this was gdb...20:44
kristianpaulneed recall too :|20:44
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