Re: [maemo-developers] OGG support

2006-03-30 Thread Koen Kooi
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Juha Yrjölä wrote: > On Mon, 2005-10-31 at 13:53 +0100, ext Koen Kooi wrote: > > >>What's nokia's position on EABI[1]? > > > At least this part of Nokia thinks that EABI is cool. It seems you have company*: http://lists.debian.org/debian-arm/2006

Re: [maemo-developers] OGG support

2005-11-01 Thread Martin Grimme
Hello Devesh, Am Dienstag, den 01.11.2005, 11:39 +0200 schrieb Devesh Kothari: > I am trying to get a How-To which should describe the multimedia > architecture explained and how to write custom codec and how to > integrate and install them. > > could you post your code ??? this could be quite u

Re: [maemo-developers] OGG support

2005-11-01 Thread Riku Voipio
On Monday 31 October 2005 14:36, Paul Mundt wrote: > Some versions of the ARM9 support VFP, which allows for partial hardware > FP support for some basic single and double precision opcodes, and traps > for the rest (it however does not offer a IEEE754 compliant interface in > hardware, and require

Re: [maemo-developers] OGG support

2005-11-01 Thread Devesh Kothari
ext Martin Grimme wrote: >Hello, > >I have written a little program which can fluently play OGG Vorbis >files on the device. This shows that OGG support is technically >possible and, by utilizing the DSP, it could even be implemented more >efficient. My CPU-only implementation causes about 20% CPU

Re: [maemo-developers] OGG support

2005-11-01 Thread Paul Mundt
On Mon, Oct 31, 2005 at 11:09:34PM +, Tom S. wrote: > > Concerning the 770 the DSP based solution should improve device > > performance since the MPU would be left for applications instead of > > decoding. > > I'm nit picking here, though, generally the arithmetic unit is called an > ALU. >

Re: [maemo-developers] OGG support

2005-10-31 Thread Tom S.
On Mon, Oct 31, 2005 at 05:32:55PM +0100, Nils Faerber wrote: > -BEGIN PGP SIGNED MESSAGE- > Hash: SHA1 > > Paul Mundt schrieb: > > On Sun, Oct 30, 2005 at 07:59:46PM +0100, Nils Faerber wrote: > >>I am quite sure that the ARM9 does not support FP at all. What is IMHO > >>supported are som

Re: [maemo-developers] OGG support

2005-10-31 Thread Paul Mundt
(This is really starting to veer off-topic for this list.. Hopefully this will clear things up for people still wondering about hard FP) On Mon, Oct 31, 2005 at 05:32:55PM +0100, Nils Faerber wrote: > Well, then maybe my experience is limited here. > I had several ARM based platforms (no ARM9 up t

Re: [maemo-developers] OGG support

2005-10-31 Thread Ed Okerson
Martin, The initial release does use the DSP quite extensively, just not for OGG. This is all documented at http://dspgateway.sourceforge.net. Ed > Martin, > > does the N770 have a programmer's reference manual? I would like to > learn more about the characteristics of the Digital Signal Proces

Re: [maemo-developers] OGG support

2005-10-31 Thread John B. Holmblad
Nils, your assertion (incorrect it seems) about no ARM processors supporting on-board floating point led me to do some searching and sure enough, ARM, at least, has products that support onboard FPP. Check out the info at the following urls:     http://www.arm.com/products/CPUs/Cortex-A8.html

Re: [maemo-developers] OGG support

2005-10-31 Thread Nils Faerber
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Paul Mundt schrieb: > On Sun, Oct 30, 2005 at 07:59:46PM +0100, Nils Faerber wrote: >>I am quite sure that the ARM9 does not support FP at all. What is IMHO >>supported are some FP traps that would trap into kernel or other FP >>software implementation

Re: [maemo-developers] OGG support

2005-10-31 Thread Jan Wildeboer
Frantisek Dufka wrote: Hello, N770 has TI OMAP 1710 see documentation here http://dspgateway.sourceforge.net http://focus.ti.com/docs/prod/folders/print/omap5912.html#technicaldocuments Seems a good starting point. Kind regards jan Wildeboer ___

Re: [maemo-developers] OGG support

2005-10-31 Thread Juha Yrjölä
On Mon, 2005-10-31 at 13:53 +0100, ext Koen Kooi wrote: > What's nokia's position on EABI[1]? At least this part of Nokia thinks that EABI is cool. Cheers, Juha ___ maemo-developers mailing list maemo-developers@maemo.org https://maemo.org/mailman/li

Re: [maemo-developers] OGG support

2005-10-31 Thread Frantisek Dufka
Hello, N770 has TI OMAP 1710 see documentation here http://dspgateway.sourceforge.net Frantisek John B. Holmblad wrote: Martin, does the N770 have a programmer's reference manual? I would like to learn more about the characteristics of the Digital Signal Processor (DSP), part #, manufact

Re: [maemo-developers] OGG support

2005-10-31 Thread John B. Holmblad
Martin, does the N770 have a programmer's reference manual? I would like to learn more about the characteristics of the Digital Signal Processor (DSP), part #, manufacturer, etc.,  and how it is integrated into the N770. From the discussion on this list it would appear that even though the ini

Re: [maemo-developers] OGG support

2005-10-31 Thread Koen Kooi
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Paul Mundt wrote: >>All software FP implementations are of course very CPU intensive. You >>have to calculate the FP result in software which takes several hundred >>cycles while in hardware it would only take just a few cycles. So FP on >>emebdded de

Re: [maemo-developers] OGG support

2005-10-31 Thread Paul Mundt
On Sun, Oct 30, 2005 at 07:59:46PM +0100, Nils Faerber wrote: > I am quite sure that the ARM9 does not support FP at all. What is IMHO > supported are some FP traps that would trap into kernel or other FP > software implementations. But that dies not speed up anything. There is > to my knowledge no

Re: [maemo-developers] OGG support

2005-10-31 Thread Jussi Pakkanen
--- Martin Grimme <[EMAIL PROTECTED]> wrote: > I have written a little program which can fluently > play OGG Vorbis > files on the device. This shows that OGG support is > technically > possible and, by utilizing the DSP, it could even be > implemented more > efficient. That's cool. There has b

Re: [maemo-developers] OGG support

2005-10-31 Thread Eero Tamminen
Hi, > What I wonder is that it seems FP is really slow on the > Nokia770, although the ARM9 built in seems to support FP operations in > hw. I am just a bit curious about that, any ideas why its still that > slow? Linux kernel has FPU emulation support (has actually had since 386 times) which to

Re: [maemo-developers] OGG support

2005-10-30 Thread Nils Faerber
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Clemens Eisserer schrieb: > Hello, >>Of course it is not fast enough for the standard Ogg Vorbis >>decoder. But there exists an integer-only version called >>Tremor (http://www.xiph.org/vorbis/) which is usable on the >>device. > What I wonder is that

Re: [maemo-developers] OGG support

2005-10-30 Thread Clemens Eisserer
Hello, > Of course it is not fast enough for the standard Ogg Vorbis > decoder. But there exists an integer-only version called > Tremor (http://www.xiph.org/vorbis/) which is usable on the > device. What I wonder is that it seems FP is really slow on the Nokia770, although the ARM9 built in seems

Re: [maemo-developers] OGG support

2005-10-30 Thread Koen Kooi
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Zeeshan Ali wrote: > Hey buddies, > > >>Nonsense, gst-plugin-ivorbis has been around for a while now. The only >>problem is that the gstreamer people forget to apply small API tweaks >>every time gstreamer gets improved. Cristian has mentioned >>(htt

Re: [maemo-developers] OGG support

2005-10-30 Thread Zeeshan Ali
Hey buddies, > Nonsense, gst-plugin-ivorbis has been around for a while now. The only > problem is that the gstreamer people forget to apply small API tweaks > every time gstreamer gets improved. Cristian has mentioned > (http://blogs.gnome.org/view/uraeus/2005/10/28/0) that they will port > ivorb

Re: [maemo-developers] OGG support

2005-10-30 Thread Koen Kooi
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Martin Grimme wrote: > Hi, > > Am Sonntag, den 30.10.2005, 11:10 + schrieb Clemens Eisserer: > >>Wow, really great someone is really doing it finally, although I can't >>really underand why they did not include it in the default >>distribution -

Re: [maemo-developers] OGG support

2005-10-30 Thread Lassi Syrjälä
Martin Grimme kirjoitti 30.10.2005 kello 13.21: The gstreamer guys also tested Ogg on the device, but by using the standard plugin, which is too slow. Currently there is no plugin which uses Tremor, but Christian Schaller wrote in his blog that they will be working on it. Hi, I think there i

Re: [maemo-developers] OGG support

2005-10-30 Thread Frédéric Crozat
Le dimanche 30 octobre 2005 à 11:10 +, Clemens Eisserer a écrit : > Wow, really great someone is really doing it finally, although I can't > really underand why they did not include it in the default > distribution - ogg is THE next generation audio compression format. > I am looking excited fo

Re: [maemo-developers] OGG support

2005-10-30 Thread Martin Grimme
Hi, Am Sonntag, den 30.10.2005, 11:10 + schrieb Clemens Eisserer: > Wow, really great someone is really doing it finally, although I can't > really underand why they did not include it in the default > distribution - ogg is THE next generation audio compression format. > I am looking excited f

Re: [maemo-developers] OGG support

2005-10-30 Thread Martin Grimme
Hello, Am Sonntag, den 30.10.2005, 01:28 -0200 schrieb Gustavo Sverzut Barbieri: > Are you using GStreamer OGG or what? If not, why not? > > A oggsink, in the same way mp3sink acts, would rock! Currently, I'm not using gstreamer. My Ogg player was just a proof of concept to see whether the Noki

Re: [maemo-developers] OGG support

2005-10-30 Thread Clemens Eisserer
Wow, really great someone is really doing it finally, although I can't really underand why they did not include it in the default distribution - ogg is THE next generation audio compression format. I am looking excited foreward to test the first version! Personally I do not care which project is u

Re: [maemo-developers] OGG support

2005-10-29 Thread Gustavo Sverzut Barbieri
On 10/29/05, Martin Grimme <[EMAIL PROTECTED]> wrote: > Hello, > > I have written a little program which can fluently play OGG Vorbis > files on the device. This shows that OGG support is technically > possible and, by utilizing the DSP, it could even be implemented more > efficient. My CPU-only im

[maemo-developers] OGG support

2005-10-29 Thread Martin Grimme
Hello, I have written a little program which can fluently play OGG Vorbis files on the device. This shows that OGG support is technically possible and, by utilizing the DSP, it could even be implemented more efficient. My CPU-only implementation causes about 20% CPU load for playing in CD quality.