similar to: page syncing and magic OggS

Hello, All. First, I want to thank Ian Malone and Ralph Giles, thanks for your kind replies. But I still have problems about seek. As you suggested, I could use ov_open_callbacks() to supply my own read/write/seek functions. So, can you give me an example? I?m sorry for my ignorance, because I haven?t used callbacks before. I analyzed the vorbisfile.c in Tremor, and I think I

Ok I just finished writing a Vorbis encoder/decoder, and here are some of my comments (I'm sure some of these are well known, but here they are anyway - sorry this is long): 1. vorbis_info: a. Accessing the pre-computed info structs through pointers to static data is messy IMO. I should be able to vorbis_info_init (or similar) an info struct to be exactly the same as info_A, for

Am 03.12.2013 23:49, schrieb Monty Montgomery: > Any time code is stuck in a loop calling ogg_sync_pageseek() or > ogg_sync_pageout(), you'll see most of the time sunk into checksum > calculation. It's the only thing in libogg that _can_ take much time. > This is not likely a libogg bug, but a bug in the code calling libogg > in a tight loop. > > Looking at the file

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Hello devs, since this bug affect gstreamer and vlc, i assume it is libogg regression. Please take a look at this bug report: https://bugzilla.gnome.org/show_bug.cgi?id=719615 - -- Regards, Oleksij -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.14 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/

I've spent three days tracking this bug down.. I have yet to find how to fix it in the code, tho I do have a workaround which proves the nature of the bug. Sorry for the somewhat-overkill nature of explaining this bug, but some people have been doubting it so I'm going to give the evidence nessesary to prove the nature of it. If you send page-aligned data to libshout (via shout_send) it

I've spent three days tracking this bug down.. I have yet to find how to fix it in the code, tho I do have a workaround which proves the nature of the bug. Sorry for the somewhat-overkill nature of explaining this bug, but some people have been doubting it so I'm going to give the evidence nessesary to prove the nature of it. If you send page-aligned data to libshout (via shout_send) it

Dear members, since two weeks I am stuck, trying to demux a physical ogg stream (theora and vorbis) and play the audio part using vorbisfile. I hope that one of you can give me a hint or point me to additional documentation. I used ogg.h and vorbisfile.h. The way so far: - initializing an ogg_sync_state - inserting data to sync_state using ogg_sync_buffer - when whole page found

Wednesday next week would be the Xiph monthly meeting. It is there enough going on at the moment (IETF document being submitted soon, the various aspects of metadata) to warrant one? -- imalone

Wednesday next week would be the Xiph monthly meeting. It is there enough going on at the moment (IETF document being submitted soon, the various aspects of metadata) to warrant one? -- imalone

Wednesday next week would be the Xiph monthly meeting. It is there enough going on at the moment (IETF document being submitted soon, the various aspects of metadata) to warrant one? -- imalone

I'm updating my vorbis rpm spec file, and when I try to do "make -C vorbis-tools ogg123", due to rpm's build environment, I get lots of: gcc ogg123.o -o ogg123 -lm ../lib/libvorbis.a ../lib/vorbisfile.a ../lib/vorbisfile.a(vorbisfile.o): In function `_get_prev_page': vorbisfile.o(.text+0x54): undefined reference to `ogg_sync_reset' vorbisfile.o(.text+0xa9): undefined

Hi, The following changes allow vorbiscomment to read and edit the tags for the first occuring vorbis stream in a muxed (and chained) Ogg bitstream, while retaining the renormalisation. I've tested it on a number of combinations of muxed and chained streams, using the write comments from file option for vorbiscomment to rewrite the comment header and then cmp for binary differences. Seems

On 14 April 2012 23:40, Ian Malone <ibmalone at gmail.com> wrote: > On 14 April 2012 23:34, Ian Malone <ibmalone at gmail.com> wrote: > >> http://pastebin.com/xXhPyZuQ > >> ./jpegtoblock.pl ?-i DSCN7376.JPG -o flacblock > >> You'll need to add the "METADATA_BLOCK_PICTURE=" which makes it into a >> comment file yourself. >> >

Ralph Giles wrote: > > A URI/URL scheme for referencing streams would be a generally useful > thing. Should we override the query mechanism like the time fragment > draft? "?oggserial=0x15323421" ? > This is roughly what was suggested the last time around. A possible refinement is to provide a mapping from identifiers to IDs so you could say "?oggid=myvideo".

Hi people, I'm writing a decoder that uses libtheora on Windows and Linux. Decoding works well by now. I have a couple of problems with it, that I just can't seem to figure out. I'll write each of them in a single mail, so it's easier to answer individual problems. The first problem I have is seeking, when it's playing files. I have implemented a weighted binary jump

(w. quotes from the xiphmeet: <http://westfish.xiph.org/~giles/200603_meeting.txt>, I've tried to strip it down to relevant stuff) <xiphmont> "Is there any interest in extending vcedit/libvorbisfile to do basic handling of Vorbis streams from concurrently multiplexed Ogg?" < xiphmont> Yes, but that work was *also* tied to OggFile from way back when, and one

On 19/09/2007, Daniel Aleksandersen <aleksandersen+xiphlists@runbox.com> wrote: > On Wednesday 19. September 2007 19:02:06 Ian Malone wrote: > > Daniel Aleksandersen wrote: > > > Attached is a much improved version of yesterday's draft. Introducing > > > the audio:collection:artwork element to deal with album cover graphics > > > and such. > >

Daniel Aleksandersen wrote: > On Saturday 08. September 2007 11:40:05 Ian Malone wrote: >> Daniel Aleksandersen wrote: >>> Hi again list, >>> >>> Attached is a much improved version of yesterday's draft. Introducing >>> the audio:collection:artwork element to deal with album cover graphics >>> and such. >>> >>> After

It seems to me that running ogg_sync_pageout doesn't automatically advance the page. This is good if you haven't worked with the given page, makes coding somewhat easier. However, when does a page advance. Is it after a call to ogg_stream_pagein? On a side note, I need to do seeking on top of libvorbis, I'd love to use vorbisfile but sadly I can't. Is there a reasonable way to

Hi Ian, CMML is still a draft, so we can change the addressing if required. You're correct, currently something like blah.cmml#fragment points to a clip (or temporal section) of the stream, but blah.cmml#t=12 points to a 12 seconds offset. (same for annodex, i.e. ogg files with skeleton track). For pointing to logical streams inside ogg, I'd really suggest you have a look at