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...peed/quality tradeoff. It proved to be easier to realize. Without further ado, find attached the source tarball for "Rhubarber", as I named it. Placed into the Public Domain, including the sogg (Simple Ogg) framework (easier to use than libogg, which it builds on). Have fun, <p>Segher <p>README for Advanced Peeler 1.0 (Rhubarber) ========================================== To build, just run make. Usage: cat in.ogg | apr > out.ogg <p>This program peels an Ogg Vorbis file down to a smaller size (because it can't peel it to a bigger size ;-) ). The...

...peed/quality tradeoff. It proved to be easier to realize. Without further ado, find attached the source tarball for "Rhubarber", as I named it. Placed into the Public Domain, including the sogg (Simple Ogg) framework (easier to use than libogg, which it builds on). Have fun, <p>Segher <p>README for Advanced Peeler 1.0 (Rhubarber) ========================================== To build, just run make. Usage: cat in.ogg | apr > out.ogg <p>This program peels an Ogg Vorbis file down to a smaller size (because it can't peel it to a bigger size ;-) ). The...

Hi Segher, On Sun, Dec 2, 2018 at 3:48 PM Segher Boessenkool <segher at kernel.crashing.org> wrote: > > On Fri, Nov 30, 2018 at 10:06:02AM +0100, Boris Petkov wrote: > > On November 29, 2018 1:25:02 PM GMT+01:00, Segher Boessenkool <segher at kernel.crashing.org> wrote: > > &g...

...hat packet level routines shouldn't have to bother with page level stuff. Oh, and you need to remove the "static" from the _vorbis_pack_XXX routines in your vorbis source to build rehuff. There is a Makefile supplied, but you'll probably need to fiddle with it a bit. Have fun, Segher. p.s. bit savings results for average streams: beta1 5% beta2 2% beta3 1.3% beta4 2% <HR NOSHADE> <UL> <LI>application/octet-stream attachment: Unknown Document </UL> -------------- next part -------------- A non-text attachment was scrubbed... Name: rehuff.tar.bz2 Type:...

Hello all, Finally I succeeded in uploading the test case I promised. It's at http://home.wanadoo.nl/segher/test1.wav.bz2 (It is a wav, the headers are a bit inconsistent, but encoder_example will be ok with it, as it just skips them). I did some thinking, and a possible solution is decreasing the ATH_Bark_dB[] for the lower frequencies. As the comments say, it's not really an ATH, but this table is...

...ngs 3) combine 1 and 2 4) if a psycho model is good, after leaving out what it tells you you can without hurting quality, applying the same model should yield the same results as you got before 5) from 4: decode -> encode -> decode should result in (almost) the same stream. Dagdag, Segher --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'vorbis-dev-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages...

No offense, Segher, but the output quality of this thing is awful. =) I'll disregard the fact that, at least with *my* compiler, the source tarball I downloaded reduces every packet to zero bytes, which isn't terribly interesting. I decided to set the byte reduction to something constant: I started by divid...

Sorry for starting another topic, this is actually a reply to Segher's post on Sun Oct 22 on the 'mdct question' topic. I wasn't subscribed properly and so I didn't get email confirmation and thus can't add to that thread. So Segher, if the equation is indeed what you say it is, then replacing mdct_backward with this version should work, bu...

...better (at 192 kbps). I did some spectrum analysis, and it seems the "background" noise of the original is gone, which makes the sound very artificial sounding, and massively f***s up the acoustic guitar low strings sound in my testtrack. Still, 's a nice release, Ciao, Segher --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'vorbis-dev-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages...

what are the main fields where optimisation will take place to improve the CPU use when decoding Ogg Vorbis files? -- Venlig hilsen/Kind regards Thomas Kirk ARKENA thomas@arkena.com http://www.arkena.com "I was drunk last night, crawled home across the lawn. By accident I put the car key in the door lock. The house started up. So I figured what the hell, and drove it around the block a

* Segher Boessenkool <segher at kernel.crashing.org> wrote: > On Mon, Oct 08, 2018 at 11:07:46AM +0200, Richard Biener wrote: > > On Mon, 8 Oct 2018, Segher Boessenkool wrote: > > > On Sun, Oct 07, 2018 at 03:53:26PM +0000, Michael Matz wrote: > > > > On Sun, 7 Oct 2018,...

I couldn't resist: izeof(synth_buffs) = sizeof(float)*2*2*0x120 = 4 * 4 * 0x120 = 0x1200 = 4608 -Anish > -----Original Message----- > From: Segher Boessenkool [mailto:segher@chello.nl] > Sent: Monday, July 02, 2001 6:34 PM > To: vorbis-dev@xiph.org > Subject: Re: [vorbis-dev] ogg vorbis dynamic memory allocation. > > > > > Firelight Multimedia wrote: > > > > > > > That's 40.5k (roughly), f...

Greetings, I thought this was supposed to be a list for educated people to discuss serious development of the ogg vorbis project. In light of that, it is amazing to see the level Mr. Segher Boessenkool drops down to in the last posts. More or less calling people insane and accusing them of being on crack and what not. I didn't want to post this on the list, for there is no reason to promote further flaming, but _someone_ should take action against Mr. Boessenkool; this is rath...

...solaris : Solaris audio driver. Note that this driver has : not been tested! So, I just wanted to test it... but I couldn't find it. It doesn't seem to be contained in libao-0.6.0.tar.gz. Where can I get that code? Finally a question about encoding speed. Segher mentioned a 3-4x speedup recently. Is this incorporated in beta4 already, or can I look forward to it? (Beta4 is the first version I've used, so I can't compare.) Currently, oggenc is doing slightly more than 50% on my "ancient" home system (K6/233). Can I hope for realtime encodi...

Hi. On Wed, Oct 10, 2018 at 1:14 AM Segher Boessenkool <segher at kernel.crashing.org> wrote: > > On Mon, Oct 08, 2018 at 11:07:46AM +0200, Richard Biener wrote: > > On Mon, 8 Oct 2018, Segher Boessenkool wrote: > > > On Sun, Oct 07, 2018 at 03:53:26PM +0000, Michael Matz wrote: > > > > On Sun, 7 Oct 2...

Hi. On Wed, Oct 10, 2018 at 1:14 AM Segher Boessenkool <segher at kernel.crashing.org> wrote: > > On Mon, Oct 08, 2018 at 11:07:46AM +0200, Richard Biener wrote: > > On Mon, 8 Oct 2018, Segher Boessenkool wrote: > > > On Sun, Oct 07, 2018 at 03:53:26PM +0000, Michael Matz wrote: > > > > On Sun, 7 Oct 2...

...have to add some -I and -L for libogg). Missing features: - support for floor0 and res0 and res1; - recode in-place; - support for chained and muxed streams etc; - built-in mail client. If you have any comments on rehuff, be sure to contact me about it, Have fun, Segher -------------- next part -------------- A non-text attachment was scrubbed... Name: rehuff.tar.gz Type: image/x-photoshop Size: 9024 bytes Desc: rehuff.tar.gz Url : http://lists.xiph.org/pipermail/vorbis-dev/attachments/20020731/6d9f656b/rehuff.tar-0001.psd

...have to add some -I and -L for libogg). Missing features: - support for floor0 and res0 and res1; - recode in-place; - support for chained and muxed streams etc; - built-in mail client. If you have any comments on rehuff, be sure to contact me about it, Have fun, Segher -------------- next part -------------- A non-text attachment was scrubbed... Name: rehuff.tar.gz Type: image/x-photoshop Size: 9024 bytes Desc: rehuff.tar.gz Url : http://lists.xiph.org/pipermail/vorbis-dev/attachments/20020731/6d9f656b/rehuff.tar-0001.psd

I saw some mail go by a bit ago about doubles-vs-floats, but I seem to have lost it. I'm interested in rewriting the mdct code using Altivec on MacOS X. Altivec doesn't support doubles, though -- the only floating point vector type is single precision floats. Vorbis currently has doubles everywhere -- is this really necessary? Doubles are supposedly faster than floats in the PPC

...code caches ;-) Slowest parts now are: -- mdct -- vorbis_lsp_to_curve (and the exp()'s afterwards, in fromdB macro; eliminated most of-em, but not all). -- main (the float to s16 loop) Hope to send a patch tomorrow, as the sneakernet had some transmission problems today :-| Dagdag, Segher --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/