similar to: Speex ACM Format Tag

Keith, Try emailing mmreg@microsoft.com to register a wave format tag. If that doesn’t work please let me know and we'll find the direct contact there. Regards, Marc -----Original Message----- Wrom: YLEJGDGVCJVTLBXFGGMEPYOQKEDOTWFAOBUZXUWLSZLKBRNVWWCUFPEGAUTF Behalf Of Keith Looney Sent: Friday, May 16, 2003 10:58 AM To: speex-dev@xiph.org Subject: [speex-dev] Speex ACM Format Tag

I have arranged for an official Speex ACM format tag from Microsoft (see below). Feel free to use this in any ACM codec work. Keith Looney ________________________________________________ Keith Looney Senior Software Engineer On2 Technologies, Inc. The Duck Corporation <p><p>-----Original Message----- From: Bill Schiefelbein [mailto:billsch@windows.microsoft.com] Sent: Wednesday,

My arrangement for a Speex format tag was actually accidental. I was asking what would be involved and instead of an answer, I got a format tag. Since there is only one functional Speex ACM codec available as far as I know, it should use the official format tag. I will be glad to modify our applications to conform to this de-facto standard. Others who may develop ACM codecs in the future

Christian, I have successfully integrated your ACM codec in our applications, but I have run into one minor issue. In a code comment you imply that fmtnotice is an optional part of the WAVEFORMATEX extra data. I tried to play a file that had no fmtnotice but Windows did not recognize it as valid and did not play the audio. Your work is very much appreciated here and we are anxiously awaiting

Prior to having your ACM codec, I was manually compressing Speex audio and writing it into one stream of an AVI file. To be able to use your codec for playback, I simply appended your WAVEFORMATEX extra data (the extra fields in SPEEXWAVEFORMAT) to the audio format. In looking at your code trying to determine how to fill in that data, it looked like the fmtnotice was optional. Is this truly the

Hello Theora developers, I'm doing some cursory research into Theora's IP status in preparation for asking Apple to reconsider the possibility of shipping an implementation. I have a few questions and I'm hoping knowledgeable people can help out. 1) What are the terms of any patent licenses or disclaimers, and do they have field of use restrictions or limitations on code for

FYI, Google is acquiring On2: <http://www.betanews.com/article/Future-of-open-Web-video-may-change-with-Google-acquisition-of-On2/1249481107> Also on Slashdot: <http://tech.slashdot.org/article.pl?sid=09/08/05/1742249> Anyone knows what, if anything, this means for Theora, open video and/or the Xiph.Org Foundation? Wild speculation: considering that they complained about the

Ok, I have spent that past 4 - 5hrs working (trying to) figure some AGI syntax out in perl. Maybe I'm Looney / slow or what I don't know, but I am lost. I need to figure out how to send STDIN into the script. I understand the concept of it, but lost when it comes down to it. No matter what I try with standard <stdin> The app completes on me before I can ever enter in keys. I

Supposedly On2 transferred their Video Recorder and TrueCast5 streaming server into opensource along with VP3. Theora is obviously the VP3 project, and while I can find nothing on Xiph about it, the recorder source is offered on vp3.com; but I can find nothing on Xiph or vp3.com about what happened to Truecast5. I contacted On2 about whether TrueCast5 was really going to be open source, and they

"Google will soon make its VP8 video codec open source, we?ve learned from multiple sources. The company is scheduled to officially announce the release at its Google I/O developers conference next month, a source with knowledge of the announcement said. And with that release, Mozilla ? maker of the Firefox browser ? and Google Chrome are expected to also announce support for HTML5 video

I noticed that in the narrow band and wide band destroy functions only the main pointer is being freed. I think that it should be: void nb_decoder_destroy(void *state) { DecState *st; st=(DecState*)state; speex_free (st->inBuf); speex_free (st->excBuf); speex_free (st->innov); speex_free (st->interp_qlpc); speex_free (st->qlsp); speex_free

In the fir_mem_up filter, the inner loop does a mac on the y0, y1, y2, y3 variables. What is the range of values of those variables? I would like to move the SHR 1 outside the loop after the mac has been done. Will this result in a 32 bit overflow of the y0, y2, y2 and y3 variables? -Fritz On2 Technologies, Inc. http://www.on2.com

does there exist anywhere a useful source version of an ACM for vorbis audio? I've seen the binary one somewhere in Japan, and there's an abandoned project at SourceForge, but I'm having a helluva time building it. I know all the caveats about CBR vs. VBR, ACM/AVI problems etc. but I need it anyway. Thanks in advance - ___ Dan Miller (++,) Founder, CTO, On2.com --- >8 ----

can anyone confirm that, unlike VP3, Theora in fact decodes images right-side-up? (VP3 managed to turn everything upside down on encode and reverse it on decode) The tests I'm doing indicate that Theora doesn't reverse the image -- the first coefficients encoded correspond to the upper-left corner of the frame. ___ Dan Miller (++,) Founder, On2 Technologies --- >8 ---- List

Hi, I have been working with VP3 for some time now. Dan Miller from On2 just told me about this list. A few months ago, I managed to get On2's VP3 source snapshot to compile under Linux, a feat that many have apparently attempted and quickly abandoned. I compiled a small console app and the results of the experiment are explained here:

Hullo, When people ask me what Vorbis's license terms are, I usually tell them that the bitstream format is in the public domain, that the reference libraries are licensed under a BSD-like license, and that the example programs are licensed under the GNU GPL. (Note the distinction between filespec and implementation here.) Meanwhile, Theora.org's FAQ doesn't say anything about the

Ok, we got it working with 176x144 resolution. The following string produced an image that was not falling behind too much for too long - basically a little when it was getting TONS of movement, and then catching up fast. "65 58 110 0 1 1 90 8 120 1 1 " Now, we need to get this working on a 320x240 resolution, too (as sadly VP3 does not support 160x120. Seems to be a little senseless,

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

Yes, the Theora codec is based on VP3, which is an earlier version of ON2's VP6 codec. Theora is currently at its alpha 3 release, and is stable enough to have been used already for streaming live video from a number of conferences, and for encoding several videos that can be found at www.theora.org. Development has progressed to the point that the value of the codec can be seen. That

I am trying to track down an mbox corruption issue that has been happening for one of our users. It appears that the mbox file is getting truncated and the all important From line no longer exists which then leads to the mbox being useless. It also appears, as in most truncations, that parts of the mbox are being lost. I am not sure how to debug this to find out whether this is a client or