similar to: VP30

Hello, We put the DirectShow filters on hold till the release of our software (next week) and will integrate it into the first patch. Till then, our customers will ahve to live with a VP31 vfw hack. Now, my problem is that I need to integrate the vp31vfw.dll setup into a MSI file, because spawning another installer is not exactly an option. Can anyone post a list of complete registry keys that

Hi, There seem to be 2 sets of block coding patterns in the VP3x/Theora algorithm. Based on the comments in the code, the first pattern is used if encoder version < 6 and the second pattern is used in encoder version >= 6. None of the code to support the second pattern is ever called. Is there an encoder with a version >= 6? The code in question is

I don't know how to change a video quality on the fly - I want to provide a slider with a preview window, so user could see the result immediately in this window. I tried to send ICM_COMPRESS_FRAMES_INFO to encoder or calling ICSetState() - with no success however. Am I doing something wrong ? How can I set 'lDataRate', 'dwRate', 'dwScale' parameters ? I tried every

Hi, I'm developing ffdshow and ffvfw codecs for Windows. You can read more about them at http://cutka.szm.sk and http://sourceforge.net/projects/ffdshow. Stéphane Bérubé asked me recently if I could implement Theora support. I knew about first Theora release, downloaded its sources and tested it. I liked the results add decided to support it. I implemented encoding functionality into ffvfw,

Well, I've been slamming my head against this all night, so it's time to ask for help... Having gotten together a reasonably decent port of what I thought was the whole API to the Ogg Way, complete with Ogg mem management and bitpacking, I started digging deeper in the code... only to find that it looks like I only have a middle stream handler. The encode and decode code both assume that

Hi, So it took a little while to get here but VP3 through ffmpeg is finally starting to achieve viewable results. It partially works right now. Keyframes only. And monochrome. Oh, and the picture is upside down (something I did not realize about VP3 until I let it fly just now). Anyway, here is a picture of ffmpeg's VP3 decoder in action using xine:

Dan, In reviewing the code, derf came across the DCSearchPoints array in QuadCodeDisplayFragments(), encode.c:696. It looks like it specifies a search order for nearby coded fragments for prediction if there isn't a nearest neighbor. However, the upper search bound is defined as *0*, so the search loop (line 917) is never executed and it always falls back to the last coded fragment.

I have a simple test program which encodes, decodes and displays a single video stream ( at 2-3 fps ). It takes about 15% of CPU time when it uses DivX codec, but 35% when the VP31 codec is active. Is there any way to speed encoding/decoding with VP31 ? Or maybe VP31 is just much slower than DivX ? Kamil <p>--- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage:

Hi, Since a number of people are eager to try out the native VP3 decoder in xine, I have made a patch available, bz2-compressed: http://www.pcisys.net/~melanson/codecs/xine-vp3-decoder-patch.bz2 To work with this patch: 1) Get the latest xine-lib from CVS. Visit this page for more details: http://sourceforge.net/cvs/?group_id=9655 The module name is xine-lib, but you will also need

Hi, I am making good progress on understanding, documenting, and re-implementing VP3. I have found some more deadwood in the decoder code and I just wanted to verify that it really has no place: * Version 3.3 tables: There are 2 sets of VLCs: One for v3.1 and one for v3.3. The v3.1 set is always selected. Are the v3.3 tables in production, or will they ever be? * DC Search Points: VP3

Hi, Is there anything special I need to know about VP3's IDCT? I mean besides the fact that there are separate IDCTs to handle sparse coefficient matrices. Are the IDCT functions mathematically equivalent to any textbook IDCT functions? Thanks... -- -Mike Melanson --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To

Hi, I have been on a documentation kick recently. I finally updated my VP3 format document tonight: http://www.pcisys.net/~melanson/codecs/vp3-format.txt v0.2: October 9, 2003 - expanded section "Reversing the DC Prediction" - added Appendix B: Theora Differences Feel free to look it over and point out any glaring mistakes. I can't wait to see how much sense it makes to

Hello, Due to some licensing changes (and because I actually want to promote this, too) I want to replace our usage of Intel Indeo 5 with VP3 in a video conferencing pplication we are just developing (check: http://www.stnadby24.no/ for infos (english language) on the application). My problem is this: I need to define at least the bandwidth. I am feeding full frames from the camera with a given

just added to the WIKI: * Ideas with some concensus after discussion on IRC, it was provisionally agreed (by those present at the time) that Theora should support arbitrary pixel sizes (presently it is limited to multiples of 16 both horizontally and vertically). It is felt that this can be achieved with minimal pain by adding four values to the page header, immediately following the present

Hi, Check it out-- another update in the space of a week: http://home.pcisys.net/~melanson/codecs/vp3-format.txt v0.4: March 2, 2004 - renamed and expanded section "Initializing The Quantization Matrices" - outlined section "Reconstructing The Frame" - moved Theora Differences Appendix to its own section entitled "Theora Specification" - added Appendix:

Hi, Keep up the good work! The file sizes of Theora's output is amazing! I have just joined the list, and would like to contribute to the

I hope this list is small enough for not beeing banned when introducing oneself. So... Hi, I just subscribed to the theora-lists. I'm from the XVID project, so I know a deal about video and MPEG-4 in particular, but nothing about Vorbis/Theora etc., That's why I'm here, because I'm interested in patent-free alternatives. I guess there is no documentation of the current status

./configure: line 524: syntax error near unexpected token `AM_INIT_AUTOMAKE(libtheora,0.0)' ./configure: line 524: `AM_INIT_AUTOMAKE(libtheora,0.0)' I'm sure I'm doing something pro-stupid, but --- my setup works fine for ogg & vorbis. autoconf ver 2.13 automake (GNU automake) 1.4-p4 if that matters hey let's put tool version numbers into the README -dan

--- "Tabuleiro" wrote: Hi, guys. I was working with the VP3 code, planning to integrate it with Ogg for a self-contained solution for video playback, platform independant, no installation required, no QT, no AVI runtimes. My main interest is CD-based work using local files and portability/performance, not really into streaming or anything fancy (network error correction, prediction,

Hello everybody, I'm a new member of this mailing-list. My name is Remi BEAUDOUIN, I'm student in an engeneering school in France (ENSEIRB, Bordeaux), major Data and Image Processing. I'm currently doing my last internship before graduating in Thales Airborne Systems. I'm working on video compression and I have to choose the best way to encode and to embed it on a DSP TMS320DM642