Displaying 20 results from an estimated 6000 matches similar to: "SOC 2010"
2009 Sep 22
5
Indexing Ogg files for faster seeking
I've developed an indexer which embeds a keyframe index track in Ogg
files. It embeds the index in its own track, so that players that don't
understand or don't want to use the index can just ignore it.
Ogg needs this to make seeking over networks faster and more efficient.
Currently we must do a bisection search when seeking, which usually
takes aound 6 HTTP requests, give or
2007 Feb 16
1
AW: How to do Theora playback efficiently ?
Hi Ralph,
thanks for your posting.
Yes, the standard example player in the theora distribution could also do it
when theora would not need so much time. I removed the frame dropping from
the example because it's based on some audio stuff under Linux that isn't
available on Windows. Currently I've no frame dropping handling build in
because the first goal is a good raw performance of
2009 Apr 03
4
liboggplay, liboggz, libfishsound migrated to git.xiph.org
Hi,
A week or two ago Viktor Gal migrated the liboggplay source repo to
git.xiph.org, and this week I moved the liboggz and libfishsound
repositories.
You can see the git repositories available via gitweb at http://git.xiph.org/
I wrote some brief news about the move, and instructions for getting the code:
http://blog.kfish.org/2009/04/liboggplay-liboggz-libfishsound.html
Thanks to Ralph Giles
2009 Apr 03
4
liboggplay, liboggz, libfishsound migrated to git.xiph.org
Hi,
A week or two ago Viktor Gal migrated the liboggplay source repo to
git.xiph.org, and this week I moved the liboggz and libfishsound
repositories.
You can see the git repositories available via gitweb at http://git.xiph.org/
I wrote some brief news about the move, and instructions for getting the code:
http://blog.kfish.org/2009/04/liboggplay-liboggz-libfishsound.html
Thanks to Ralph Giles
2009 Apr 03
4
liboggplay, liboggz, libfishsound migrated to git.xiph.org
Hi,
A week or two ago Viktor Gal migrated the liboggplay source repo to
git.xiph.org, and this week I moved the liboggz and libfishsound
repositories.
You can see the git repositories available via gitweb at http://git.xiph.org/
I wrote some brief news about the move, and instructions for getting the code:
http://blog.kfish.org/2009/04/liboggplay-liboggz-libfishsound.html
Thanks to Ralph Giles
2009 Apr 03
4
liboggplay, liboggz, libfishsound migrated to git.xiph.org
Hi,
A week or two ago Viktor Gal migrated the liboggplay source repo to
git.xiph.org, and this week I moved the liboggz and libfishsound
repositories.
You can see the git repositories available via gitweb at http://git.xiph.org/
I wrote some brief news about the move, and instructions for getting the code:
http://blog.kfish.org/2009/04/liboggplay-liboggz-libfishsound.html
Thanks to Ralph Giles
2009 Jul 20
1
Liboggplay seeking artifacts
Is anyone working on liboggplay, and if so, is there any plan to support
keyframe-based seeking? I found this, but seems to me that the feature ought
to be part of liboggplay:
http://pearce.org.nz/2009/05/video-seeking-improvements.html
Is there a more appropriate list to post to regarding liboggplay?
Shayne Wissler
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2010 Apr 29
3
Ogg index and Skeleton 4.0
Hi everybody,
I've updated OggIndex to now output Skeleton 4.0 tracks. The differences
between Skeleton 3.x and Skeleton 4.0 with OggIndex is:
* The fisbone packet now includes a "Radix" field.
* The fisbone packet now includes two new compulsory message
headers; "Role" and "Name".
* The fishead packet no longer includes "start time"
2010 Mar 11
4
Seek issue in cortado player
One of the issues I've consistently run into with the cortado player app is seek behavior, so I was curious to see how cortado handles video encoded with the latest ffmpeg2theora (0.26) and the new -seek-index option, so I tried converting an h.264 video:
ffmpeg2theora tronlegacy-tsr1_480p.mov --seek-index
This output the following advisory messages:
> Allocated 372 bytes for theora
2013 Dec 04
1
possible regression in libogg
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
2014 Aug 24
2
Merging Ogg streams whilst updating the Skeleton?
On Sat, 23 Aug 2014, Silvia Pfeiffer wrote:
> I would merge them with oggz-merge without skeleton and then add
> skeleton using oggindex e.g.
> http://git.xiph.org/?p=OggIndex.git;a=summary . (oggindex is also
> available from http://firefogg.org/nightly/ )
Ah, that looks like the tool I was looking for! Nearly there now...
With a theora+speex file, or a theora+opus file, it
2010 Jun 02
3
Fwd: Skeleton 4.0 draft, help with Dirac fields please!
On 31 May 2010 20:51, Chris Pearce <chris at pearce.org.nz> wrote:
> Ok, thanks Silvia. I'll keep working on OggIndex/Skeleton 4.0 without
> the new granulepos fields, and if they're ready in time I'll include
> them, otherwise they can wait until Skeleton 4.x.
I was waiting for Monty so summarize his ideas too, but from the irc
discussion, it sounds like the extra
2007 Apr 11
2
Is this project still ongoing?
2009 Aug 19
2
How to seek theora streams
I need to be exposed to a way of seeking theora streams. I have repeatedly found the same question asked on a different forums but could not find an answer. I'm working on a game and started integrating video with theora, the sound works just fine with ogg/vorbis(i find it easy to seek using ov_raw_seek for audio files). Could someone please point me to some example/code of how can i seek with
2010 Jun 11
1
Skeleton 4.0 final draft
I'm happy with it.
How are you creating the new message header fields? A default role of
audio/main and video/main on the first tracks? And a default of
"audio_1" and "video_1" on the name? Or is it enforced as parameters
on the command line?
Cheers,
Silvia.
On Fri, Jun 11, 2010 at 10:16 AM, Chris Pearce <chris at pearce.org.nz> wrote:
> ?Hey all,
>
>
2008 Apr 30
4
[PATCH] browser_plugin - kate support, build fixes, and misc
2008/4/30 ogg.k.ogg.k at googlemail.com <ogg.k.ogg.k at googlemail.com>:
> > > Let me know if this works for you or not; eg. it may be necessary to
> > > also put X_EXTRA_LIBS etc. in src/Makefile.am.
> >
> > will try this.
>
> It worked fine for me, with no need to add anything to Makefile.am.
>
good
> > > > - bad pointer
2009 Sep 04
1
Taking advantage of SIMD
After creating a simple decoder for theora using liboggz i started profiling. As someone else stated in the lists the conversion from yuv 2 rgb takes a significant time. I decided to go on the way of SIMD not shaders because SIMD is supported on a wider range of computers. I managed to strip out the yuv 2 rgba conversion code from liboggplay but it seems i am missing something. It runs but the
2010 Jun 11
2
Skeleton 4.0 final draft
On 06/10/2010 09:25 PM, Chris Pearce wrote:
> I looked at Benjamin's proposal, it does indeed produce much better
> compression. However I decided not to use it because I felt it was too
> complex.
For the record, the Skeleton 4.0, as implemented by OggIndex, currently
requires a multi-round iteration to produce. The encoder produces the
index, then shifts the file content
2010 Jun 11
2
Skeleton 4.0 final draft
On 06/10/2010 08:16 PM, Chris Pearce wrote:
> I have no plans to change the 'index' packet format further.
I have proposed an alternative formulation of the index packet at
http://github.com/bemasc/OggIndex/blob/master/Proposed-modified-spec.txt
That repository also contains a working implementation of the alternative
formulation. I have reviewed the details with Chris extensively.
2010 Feb 05
5
ffmpeg2theora 0.26 released
ffmpeg2theora 0.26 is out - http://v2v.cc/~j/ffmpeg2theora
Some changes that went into this release:
* use a/v sync from input container
this should fix many issues that came up with variable framerates
* include metadata from source in --info json output
* update fmpeg
* update libkate
* OggIndex support, can be enabled with --seek-index
* update GPL to version 3
Source: