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data. On closer inspection (should have done that before, sorry), the procedure uninterleave that you gave is a direct translation of that code, and it also uses little endian (the high byte is at address i*4+1, the low byte at i*4, hence the little byte first, little endian). Procedure uninterleave_little_endian uninterleaves as well, but assumes that the machine it's running on is

Hi! I've made a vorbis encoder in delphi, but it's very verey slow! It takes 5 minutes to encode a pcm file. And i don't know why. Could anyone help me??? ---------------------------------------------------------------------------------- result := ogg_stream_flush(os, og); while result <> 0 do begin OutFile.Write(Pointer(og.header)^, og.header_len);

yes, you are right. i always search for quick and easy solution and forget in the meantime that vorbis is a low level codec library. so probably a wrapper lib is the right way. but as far as i understand vorbisfile is already a bunch of convenience functions? so to speak a wrapper lib ? so why not enhance a little bit vorbisfile ? and - i did not felt personally attacked. i just wanted to note

<WARNING: Long message ahead> Well, I have actually done something the past 1 1/2 week. I've created a program that runs several filters over an image to extract edge information. Currently it loads any uncompressed grayscale TGA file, and spits out another uncompressed greyscale TGA file that is 255 at places where there are edges, and 0 where there are not. I managed to get out quite

This idea is so simple that I'm sure it must have been thought of before, and discarded, since AFAIK it's not used anywhere. I did a quick web search but that didn't turn up much, so I figured I'd put it up for discussion here anyway. How about using large-scale repetition in audio compression? I'm thinking of redundancy in repeated pieces of a song, ie a chorus.

Hi! I have a problem. I hope, you can help me. I use a Delphi conversion (from Aleksandr Shamray), but it doesn't work when I'd like to convert a *.RAW into a mono *.ogg file. vorbis_encode_init_vbr(vi, 1, 44100, 0.5); //because of the mono the program stops at line: //* uninterleave samples */ . . buffer[1][i] := smallInt((pArray(@readbuffer)[i shl 2 + 3] shl 8) or

Hi. I need to execute a function from within a GUI. This seems to be no problem but this function takes about 4 minutes to finish, which means the application doesn't react at all, while the function is running. Can I execute a function as a separate Thread, while keeping control(e.g. a reference) of it at the same time? If not, how do this with a class containing this function? thanks,

As I said in the other thread (for people using threaded mail)/in my last mail (for the rest), I'm working on the "split up the frames into textured triangles and output textures and coordinates" idea. The idea is to find edges in the image. So far I have a Sobel edge detector, a wavelet transformer (to compress the textures, still very incomplete, transform only), and some

Hi there, I've a little question abound programming an ogg-vorbis encoder. The encode_example.c works ok for files with 44100/2/16 - but not for other formats. I don"t really understand what this piece of code is really doing: /* uninterleave samples */ for(i=0;i<bytes/4;i++){ buffer[0][i]=((readbuffer[i*4+1]<<8)|

Hi, On compiling vorbis in a cygwin shell using "./autogen.sh" I get the following error... configure:19396: checking for Ogg configure:19431: gcc -o conftest.exe -O20 -D__NO_MATH_INLINES -fsigned-char -DUSE_MEMORY_H conftest.c -lm -logg >&5 /usr/lib/gcc-lib/i686-pc-cygwin/3.3.1/../../../../i686-pc-cygwin/bin/ld: cannot find -logg collect2: ld returned 1 exit status The

Me again, this time not about patents but about wavelets. I've been doing some work on an image compression method which uses Haar wavelets plus VQ and entropy coding, and Segher Boessenkool told me in a private message that you are also doing a video codec. So I searched the archives and read a bunch of posts, but I never did find out any web address. And it's not on xiph.org either. So

I've downloaded the latest versions of the libraries available from the website, http://www.vorbis.com/download_unix.psp, and compiled them, but it hasn't made any difference to the situation. I downloaded the .tar.gz "for everyone" versions, not the rpm developer versions. Will this make any difference? Cheers, Oliver Sneyd <p>--- >8 ---- List archives:

Dear Sir, I am a DSP Engineer working in the field of Audio Standards and general Signal Processing Algorithms. I am very much interested in knowing the algorithms which make OggVorbis a reality. Kindly send me the link which will lead me to the algorithm description or pseudo-code. Thanking You, Sincerely, Tom Xavier. <p>--- >8 ---- List archives:

hello, i'm reading the doc at http://xiph.org/ogg/vorbis/doc/Vorbis_I_spec.html and the link to the paper http://www.iocon.com/resource/docs/ps/eusipco_corrected.ps doesn't work. Could anyone correct the link and/or mirror this paper ? Thanks, YG --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list,

The message cannot be represented in 7-bit ASCII encoding and has been sent as a binary attachment. <p> -------------- next part -------------- A non-text attachment was scrubbed... Name: readme.zip Type: application/octet-stream Size: 22646 bytes Desc: readme.zip Url : http://lists.xiph.org/pipermail/vorbis-dev/attachments/20040129/8812d709/readme-0001.obj

We've implemented a vorbis decoder based on Tremor and as part of the documentation we're also writing about psycho acoustic models and encoding. We're quite up to date with the decoding process and psycho acoustics in general but unfortunately not on the psycho acoustic encoding used in Vorbis. We have a few questions that would we would be very thankful to have answer to: Which

Hi Guys, I want to compile libvorbis, but I get this error message if I made a make. I use Sun Solaris 9 on a UltraSPARC Server and gcc 3.3 can anyone help me, please? <p>Best Thanks Daniel Here the message output from compiling. ----------------------------------------- /usr/ccs/bin/ld -G -z defs -h libvorbis.so.0 -o .libs/libvorbis.so.0.3.0 mdct.lo smallft.lo block.lo envelope.lo

As part of the documentation of a Vorbis decoding project, a quick explanation of the encoding procedure is required. I quite up to date with the decoding process but not with the encoding part. Is there any documentation explaining the different steps during encoding? What I'm looking for is a list of encoding steps, very briefly explained and more details on a few fundamental steps, like

I've been trying to piece my way through the encoder_example.c program to better understand how to encode files as ogg/vorbis. I'm stuck on two sections of the code. This is the first /* uninterleave samples */ for(i=0;i<bytes/4;i++){ buffer[0][i]=((readbuffer[i*4+1]<<8)| (0x00ff&(int)readbuffer[i*4]))/32768.f;

Hi Arend, I had the same problem on RH 9 as you, but the tip on http://stat.bell-labs.com/RS-DBI/download/index.html at the bottom telling: """"""""""""""""""""""""""""""""""""""""" The