similar to: question about codebook

Hi According to vorbis I spec, there are several configurations. There are 2 formats of floor, 3 formats of residue and 3 look up types of VQ codebook, etc. I think to get all kinds of vorbis file with these configurations but what I have got from network only support some of the formats (Ex. floor1, residue 1 & 2, VQ lookup type0 & 1). I downloaded several freeware vorbis encoder

Áô©~ªº ¦Ñ¤H wrote: > Dear Segher > > Thanks for your information. Besides, the mechanism of the huffman > decoding seems can not work in a 24-bit processor if the code length > exceeds 24, though I have checked several vorbis file from network and > they are all below 24 bit True; but you can special case the >24 bit codebook to use a more "traditional" decoding

Hi, I am trying to implement ogg vorbis real time decoder on SHARC ADSP 21364 processor. I am writing my own version of the decoder using the documentation vorbis_I_spec.pdf from xiph.org. However I am facing certain hurdles in floor curve decoding during audio packet decode. In the spec it says that [cval] = read from packet using codebook number [so and so] in *scalar context*.(page no 43).

Dear all, I found that the plotmath seems won't work on xlab in plot (and other plot functions including matplot, contour, ...): > plot(1:10, 1:10, xlab=expression(alpha)) the plot shows nothing for x-label. My R-version is R.1.1.0 > version _ platform Windows arch x86 os Win32 system x86, Win32 status major 1

Hello Monty, Sorry for the wrong subject title last time. A little more clarification needed. When reading bit-by-bit, there is no MSb/LSb, just 'first bit' and 'last bit'. The Huffman tree is traversed from 'first bit' to last bit'. This is a conceptual layer above the bitpacker; all you need to know is what order the bits come out, which happens to be LSb-first.

Hello folks, The codebook infrastructure for Vorbis is now well underway. This is it! The last piece needed for *real* bitstreams. To that end, I have a decent VQ codebook generator running. I was originally using some farily typical merge/split algorithms and then decided that the right way to do this was to model a VQ codebook as an m-dimensional set of bubbles (like a foam). I know there

>There's plenty of areas for improvements that don't require incompatible changes like this one. can u please tell me what do I do to make it more exact waveform coder for music rather than speech. I understand that its meant for speech, but I was just using it for music... I am interested in getting the residual as small as possible using speex. Can you please tell me the areas to

Hi there, Is the gpg FreeBSD port vulnerable to ElGamal signing key disclosure problem? Info: http://lists.gnupg.org/pipermail/gnupg-announce/2003q4/000276.html Thank you, /Dorin. __________________________________ Do you Yahoo!? Free Pop-Up Blocker - Get it now http://companion.yahoo.com/

There is bit space in Bitstream Header to put Huffman codes in. However, This space can take only 80 kinds of Huffman code set. And This space is divded into DC Huffman code set and AC Huffman set, and There are only 16 choices in each DC and AC Huffman code set. If we want to use this space, we find out best(or proper) performance 80 frequency counts(Huffman code sets) from tens thousands of

Hello, I was wondering if it is possible to change the huffman stuff? A different mapping maybe, or maybe it is not too late to change? Decoding is much more efficient if: -- the huffman tree is left-aligned (i.e., longer codes more to the left) -- and we get the bits msb, not lsb Oh, and I need some clarification about the lsp: the purpose of the lsp is to find a low-bitcount approximation of

> On Mon, Dec 15, 2014 at 2:26 PM, Chad Rosier <mcrosier at codeaurora.org> > wrote: >> >> > On Mon, Dec 15, 2014 at 9:57 AM, Chad Rosier <mcrosier at codeaurora.org> >> > wrote: >> >> All, >> >> About two months ago I posted a patch that hoisted the hottest case >> >> statement from a switch statement during

On my host I run my lighttpd instance bound to a specific port and my hostname is mapped to this port (I''m not exactly sure how this is accomplished, but it is lighttpd also listening on port 80 which handles this for me I believe). A redirect from rails includes my local port number in the request, so that it shows up in the address bar. I prefer people not to see this - I

> On Mon, Dec 15, 2014 at 9:57 AM, Chad Rosier <mcrosier at codeaurora.org> > wrote: >> All, >> About two months ago I posted a patch that hoisted the hottest case >> statement from a switch statement during ISelLowering. >> >> See: http://reviews.llvm.org/D5786 >> >> Sean was rather adamant about using a Huffman tree (and I agree this is

All, About two months ago I posted a patch that hoisted the hottest case statement from a switch statement during ISelLowering. See: http://reviews.llvm.org/D5786 Sean was rather adamant about using a Huffman tree (and I agree this is a more complete solution), so I'd like to put a patch together. That being said, I have a few questions. The current switch lowering code sorts based on case

I installed the Syncpeople textmate bundle ( http://syncpeople.com/downloads/syncpeople_on_rails_features ) and the commands all work from the menu, but the short-cuts never work for any of the snippets or commands ever work, because the scopes are not being selected properly. If I change the scope to just "source.ruby" it will work fine. But I cannot see why their scope selectors do not

After messing around with this a bit recently, I've come to the following conclusions: 1. One issue is at what granularity to consider the PGO weightings. For example, should a set of 50 consecutive cases with 65% of the total weight distributed approximately evenly and which can be lowered to a table lookup be handled before the 3 remaining cases that 5%, 10%, and 20% probability,

Hello, Vorbis uses codebooks, for example to do vectorquantization and huffman-encoding. My question is - are all these codebook dynamicly generated ("trained") or are there also static codebooks used ? If yes, what specific tasks are these 2 types used for, during encoding ? Thanks Stoffke <p>--- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project

Good day! I'm creating HDL IP CORE (for using in FPGA) for theora encoder (now only I-frames). I don't undestand one moment. Now i develop such stages: 1. From RBG(byer) to YCbCr converter 2. DCT processing (8x8 pixels blocks) 3. Quantizator of DCT coeff. 4. Zig-Zag of quantized DCT coeff. and now i have uresolved last stage of compression - how i must send 8x8 blocks to huffman

Anyone have any tips for handling postgres constraints when using fixtures to load the database, other than to sort out the proper insertion orders or leaving the constraints out? I''d prefer not to do the former since I''d rather use my app to generate my fixture data (using a dump_fixtures task) and I''d prefer not to do the latter because leaving out constraints till the

Hello all, I've been working a little inside the Theora decoder when I found that it seems that many videos had the very same huffman tables encoded into their bitstreams (at least the ones that I could take my time to dissecate). I found that the tables are listed as TH_VP31_HUFF_CODES in the file huffenc.c. I tried to investigate a little bit more to see who was setting the bitstream