similar to: compglobals.c

My understanding -- Monty or Emmett, feel free to chime in if you think this is incorrect -- is as follows: www.theora.org is the home for all new releases of the Theora video codec (formally known as VP3). This includes the main OGG/Vorbis integration product, which Monty is working on personally, as well as the QT and Windows codecs, both legacy VP3 versions and new versions reflecting any

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

All the notes you mention for VC are in vp32_build.html in the release, but thanks for reiterating. Last time I built for Mac I believe I did the os9 version in CW6 and the OsX version in CW8, but I can't think why they shouldn't both compile in CW8. <p>-----Original Message----- From: Tabuleiro [mailto:beta@tabuleiro.com] Sent: Thu 9/5/2002 4:25 PM To: theora-dev@xiph.org Cc:

--- Stephane wrote: VP3 codec uses a lot of CPU for decoding. We will need some optimization because now this codec is way too slow for home uses. --- end of quote --- Actually, the Windows VP3 QuickTime codec runs just fine on a 400MHz Pentium II box, with only occasional glitches on some dodgy Celeron systems. At work, we routinely test 320x240 full-color, full-motion video on low-end boxes.

it appears your encoder/player do not yet reflece the changes rillian introduced wrt theora headers, which have been split into three parts -- header proper, comment, and tables (see toplevel.c). It's strange that your code works at all linked against the new libs; presumably since the tables still have the hard-coded values, if you encode & decode from the same lib compile you won't

good question. I would think beta means the bitstream is more or less stable. Monty? >If June is the goal for public release, is the second milestone the first beta/rc1? Guess what I'm asking is, whats a good estimate for when the codec will be frozen as far as backwards compatability.. -----Original Message----- From: Arc [mailto:arc@indymedia.org] Sent:

--- "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,

Question: is it permissible to put more than one frame packet into a page? At 30 fps, Ogg page overhead is on the order of 8 - 10 kbits/sec. At low datarates, this is going to be unacceptable. If I shove a few frames into a page, how does this affect the granulepos stuff? ___ Dan Miller (++,) Founder, On2 Technologies <p>--- >8 ---- List archives: http://www.xiph.org/archives/

[standard disclaimer about my mail format] in ftp.vp3.com/theora user: vp3 pass: vp3dev theora_dbm_5-28.zip this implements a bitstream change; the header now contains a compressed huffman tree rather than the frequency counts (as discussed) pardon my inability to use diff correctly. The change in toplevel.c is trivial (new function names & params) huffman.c is the important one. I

First, an introduction: I work in a group that makes educational software. In the coming months, we're planning to release our entire Mac/Windows runtime under the GPL. We currently encode our audio with MP3 and our video with VP3. For playback, we rely on QuickTime 5 on MacOS and Windows. In the short run, we'd like to help maintain the VP3 QuickTime codecs, preferably without

This is mostly for derf, but others may be interested too. Attached are the warnings (stderr log) from compling theora under gcc 3.2.3 (Debian). There quite a few. Many of them are spurious, but some indicate real bugs. In particular it seems likely we have more unitialized variables since Dan reports differing encoder output depending on the compiler used. In general, we need to go through

Hi there. This patch changes the block selection to quantify error based on the sum of the squared differences of the pixel values rather than the sum of the absolute differences, the former conventionally and statistically seeming like the preferable thing to do. The patch also const'ifies some parameters (which doesn't affect code quality on recent GCCs but might help on older/ other

I think I'll start with the simple stuff, just to be safe. :-) Here are some cvsignore updates, and a fix for the inter-project dependencies in the MSVC *.dsw file. Cheers, Eric -------------- next part -------------- A non-text attachment was scrubbed... Name: vp32-cvs-ignore-patch.diff Type: application/octet-stream Size: 1524 bytes Desc: vp32-cvs-ignore-patch.diff Url :

I haven't actually had many questions up to now. Despite the all-encompassing CP_INSTANCE monolith, things have been relatively easy going. Now we get into real grit: First off, CBitman looks like it has endianness issues; it's packing into host-order 32 bit arrays (the comments and symbol names seem to indicate that this was originally byte-based packing code that got upped to 32 bit.

ok now I see why we need another packet in the header. The first one is basically for ID purposes (theora_decode_header()). I've jammed my huffman trees in there but it sucks because I need them later on when I actually build the huffman tree structs (theora_decode_init, calls InitHuffmanSet()). At that point the original header packet is gone so I've been keeping it around in a buffer.

Okay, thanks to some stubbornness on my part and helpfulness on the part of people on this mailing list, I got the Ogg Theora alpha compiled up and installed and running. Yesterday, I went to the Prelinger archives (the public-domain video archive at www.archive.com) to find a high-quality original to re-encode as a test. The encoder worked just fine, and playback as well, and I thought I'd

QuickTime 6 for Windows breaks the VP3 codec quite severely--if you turn on "Safe Mode" (which forces QuickTime to draw through GDI), you'll see a white or black screen instead of video. This is logged as bug #2111990 in Apple's QuickTime feedback system. The fix is a classic one-liner, although it took me a long time to figure it out. :-/ Also attached is a patch to bump the

--- "Daniel B. Miller" wrote: It looks to me like patch is trying to put each .cvsignore in the vp32 directory rather than the specified subdirectories such as Codecs/quicktime/. It seems like I need some option to get patch to use the 'Index:' commands. I looked at the man page, it goes on about how patch tries to derive the filenames, but I am still confused. Any help would

Hi all, > One problem I see with your proposed implementation is that it does not > specify how audio and video would be synchronized, since there are no > absolute time stamps for the video frames. So it is difficult to account > for > audio latency on different systems, much like when you play an AVI file. > Ideally it would be wonderful to have timestamps that could be used

Hi, I am creating a new ogg stream for theatrical/stage/disco lighting and am having trouble encoding my comment header with the following code in _tp_writelsbint function, it does not write the second byte to the ogg buffer. I am using windows and have created a new win32 library project with visual studio and added my code, what do i have to do to get the function working? Is there a project