similar to: Ogg spec

Displaying 20 results from an estimated 3000 matches similar to: "Ogg spec"

2003 Jun 28
4
lacing values clarifications
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I thought I would separate this out into a separate mail since it's not comment specific stuff -- There seem to be a couple of inconcistanies in the Ogg spec as regards to lacing values: *) "The raw packet is logicaly divided into [n] 255 byte segments and a last fractional segment of < 255 bytes." However, in the wild, I've
2002 Nov 06
3
Confusion with page_segments / segment_table
Hi, There is something I don't understand about the page_segment and segment_table values in the documentation. As I understand it, the segment table consist of as many bytes as specified in page_segment, PLUS one trailing byte with a value between 0 and 254. I've looked at some files that has a Comment tag so large, that it is spread over two pages. Here, the first Page Header (not the
2005 Jun 02
1
Lacing Values
I noticed that, when decoding an ogg vorbis file that was encoded with the xiph library, that the comment header and setup header are encoded on one page. Okay, the vorbis documentation says you can do this, no problem. My question is, the lacing values seem to indicate where the packet boundaries for the two of these are, is this required, or is this just a hint? Further, I'm seeing
2003 Dec 05
1
overhead ??
Someone could tell me the question about the question about lacing values values of segments. I mean i know what happens about segmentation but reading ogg specs i didn't understand this lines: "We simply add the lacing values for the total size; the last lacing value for a packet is always the value that is less than 255. Note that this encoding both avoids imposing a maximum packet
2007 Mar 14
1
AW: AW: packets and OGG pages
>Searching for 'vorbis' to find the packet boundary is wrong however. >The lacing values in the Ogg page header tells you exactly where the >division is. OK, so given the fact that a page can also contain multiple packets this means that the lacing values of one page could be like the following example: 255 255 189 (something less than 255, indicating that a new packet starts
2000 Aug 15
1
Ogg Vorbis Framing
Hi all, Here are some thoughts on Vorbis framing, which may make it easier to stream Vorbis in real time. The suggested changes also move more audio data closer to the beginning of each page. A note in the Vorbis framing spec suggests a simple 'bandwidth limited' mode whereby important information is placed at the front of each page and the end of each page is discarded. When operating
2001 Feb 04
2
Am I missing something?
Hey all, If my understanding is right, there's a serious big in vorbisfile.c, in the routine _fetch_headers(), which will only show up when comment packet spans multiple pages. The code to read the first 3 Vorbis packets ogg_stream_pagein() once, then calls ogg_stream_packetout(). The problem is that ogg_stream_pagein() only adds a single page to the ogg stream state, whereas
2007 Mar 15
1
AW: packets and OGG pages
Ralph, thanks for your help. >>Since the length of the precedent identification header is fixed, this even is a fixed offset >>into the logical ogg stream. >This will work for all the vorbis-only files I've seen (because no one >pads the first packet). You should really implement a proper ogg parser, >but by all means get a hack working first. I will of course use the
2000 Aug 20
1
question about encoding of lacing values
Hi, I'm reading the logical bitstream framing doc, and I have a question about lacing values, which encode the length of a packet (I think). For example, the values 255, 255, 243 encode a length of 753. I'm wondering whether a format more like this was considered length bytes encoding 0-254 1 value in one byte 255-65534 3 one 255 + value in two bytes
2003 Mar 02
1
Final Ogg 1.0 submission to IETF
Hi all, just letting you know that I am about to submit the final version of the Ogg 1.0 file format Internet-Draft to the IETF. It is due by today (March 3, Monday - Internet Draft final submission cut-off at 09:00 ET) for the next IETF meeting and I expect they will promote it to RFC status at the meeting. Please send any last-minute changes to me. Cheers, Silvia. <p><p>
2003 Mar 02
1
Final Ogg 1.0 submission to IETF
Hi all, just letting you know that I am about to submit the final version of the Ogg 1.0 file format Internet-Draft to the IETF. It is due by today (March 3, Monday - Internet Draft final submission cut-off at 09:00 ET) for the next IETF meeting and I expect they will promote it to RFC status at the meeting. Please send any last-minute changes to me. Cheers, Silvia. <p><p>
2004 Nov 30
2
Ogg for Java
Hello, I think this new list is a good idea, at least there is a place on which this mail is on-topic. Altough I do not know if anyobody is on this list yet. There is a new Java implementation of the Ogg library. The link is http://netmind.hu/ogg This is a high level implementation, meant to be as easy as possible, while preserving all ogg's features. It lacks real-world tests and can be
2003 Feb 13
2
Changes to Ogg format IETF I-D
Howdy, yeah, I've finally collected all your feedback on my I-D on the Ogg encapsulation format, many thanks to all of you! Below, I've listed the changes that I have made to the previous version and the attachment contains the complete new I-D. If there are any more change requests, please send me wording proposals as it's easier to include. :) Monty, in case you are doing any
2003 Feb 13
2
Changes to Ogg format IETF I-D
Howdy, yeah, I've finally collected all your feedback on my I-D on the Ogg encapsulation format, many thanks to all of you! Below, I've listed the changes that I have made to the previous version and the attachment contains the complete new I-D. If there are any more change requests, please send me wording proposals as it's easier to include. :) Monty, in case you are doing any
2012 Jun 24
2
Power calculation using pwr.t.test()
Dear R experts, I have conducted a power calculation in order to estimate the number of subjects needed to detect an effect size of d=0.28 (cohen's d) for a difference between two independent groups (alpha level should be 0.05 and the effect should be detected with 80% probability). The results from the code below indicates that I would need n=400 subjects (200 in each group). This is seems
2002 Aug 09
1
OGG header
hello, I am writing an OGG tag editor, but I have a problem with a part of the header. Here is a part of a file header in hex <g>: <p>00000000: 4F 67 67 53 00 02 00 00 - 00 00 00 00 00 00 01 03 OggS______________ 00000010: F2 4D 00 00 00 00 BC 1B - FB E9 01 1E 01 76 6F 72 _______________vor 00000020: 62 69 73 00 00 00 00 02 - 44 AC 00 00 00 00 00 00 bis_______________
2008 Aug 15
0
Fwd: Fwd: New Ogg Dirac mapping draft
On Wed, Aug 13, 2008 at 3:05 AM, ogg.k.ogg.k at googlemail.com wrote: > And that's the canonical way AFAIK. Comparing times computed from > the granpos you get from pages you get from a bsearch requires good > knowledge of the codec, whereas comparing granpos can seek within > any codec. No. it's in general impossible to calculate the granulepos that corresponds to a
2013 Apr 08
2
Does ogg segments include more than one Vorbis frame
Hi, Guys: Does anybody know is it allowed for the OGG segment including more than one Vorbis frame? Or should I consider about that? I am working on OGG+Vorbis player now, but met some cases that OGG segment includes some garbage bytes after one Vorbis frame, I want to know whether it's safe if I just drop the left bytes after decoding one Vorbis frame? I read the page
2008 Aug 12
7
New Ogg Dirac mapping draft
David Flynn has proposed a new Ogg Dirac mapping. The draft is here: http://davidf.woaf.net/dirac-mapping-ogg.pdf This is a much bigger break from other codecs than my draft (at http://wiki.xiph.org/index.php/OggDirac). We talked a bit about it on IRC today. Below is my summary; hopefully David can correct anything I got wrong or misleading. Comments? There are two main differences
2019 Feb 15
3
32 seconds vs 72 minutes -- expected performance difference?
Saurabh Nanda <saurabhnanda at gmail.com> writes: > 1) Why is the log saying `SMB2` everywhere? Shouldn't it be saying > `SMB3`? "SMB3" is mostly marketing, it inherits almost everything from SMB2 hence why it's often handled by SMB2 code. You will see this in Samba, Wireshark, Linux, and even Microsoft specification "MS-SMB2" which actually covers both