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View Full Version : libtheora 1.0 alpha 5 released

bond
20th August 2005, 21:58
a new version of the theora reference codec is out:

We're pleased to announce a new release of the libtheora reference implemenation. This is an incremental update over alpha 4, to draw a line under recent work before we start adding optimization work.

There are two important bugfixes as well, so we recommend upgrading to everyone. This release is source and binary compatible with 1.0 alpha 4.

Changes since the 1.0 alpha 4 release:

Fixed bitrate management bugs that caused popping and encode errors.
Fixed a crash problem with the theora_state internals not being intialized properly.
new theora_granule_shift() utility function
dump_video example now makes YUV4MPEG files by default, so the results can be fed back to encoder_example and similar tools. The old behavior is restored with the '-r' switch.
./configure now prints a summary
simple unit test of the comment api under 'make check'
misc code cleanup, warning and leak fixes

Thanks to everyone who contributed!get it here (http://www.theora.org)
Matrics
21st August 2005, 01:52
The website seems to be down... :confused:
bond
21st August 2005, 11:07
works fine here
hellfred
21st August 2005, 12:22
Alternativ URL:
http://downloads.xiph.org/releases/
Go to theora subdir and choose alpha5 archvies.

Hellfred
hellfred
25th August 2005, 20:15
libtheora-mmx-1.0alpha5, a "drop in replacement that uses MMX assembly to speedup some of the most demanding routines in theora encoding/decoding" was released.
Read more about it here (http://lists.xiph.org/pipermail/theora-dev/2005-August/002852.html).
Hellfred
bond
25th August 2005, 22:41
libtheora-mmx-1.0alpha5, a "drop in replacement that uses MMX assembly to speedup some of the most demanding routines in theora encoding/decoding" was released.
Read more about it here (http://lists.xiph.org/pipermail/theora-dev/2005-August/002852.html).
Hellfredgreat! thats after all far more useable than the unoptimized reference encoder
Inventive Software
13th October 2005, 09:23
More likely when they can get the encoding algorithm speeded up and optimised more.
PatchWorKs
13th October 2005, 22:29
Any GUI tool to create Theora file?

I try VirtualDubMod but i can't find any option to create Theora file.

Ehm, what about ffdshow ? :rolleyes:
bond
14th October 2005, 15:42
Ehm, what about ffdshow ? :rolleyes:yeah you can output theora in .ogg via dshows own gui from inside virtualdub

note that i am NOT talking about virtualdubmods ogm output here
celtic_druid
19th October 2005, 02:26
Tick the store frames to an external file option and set it to ogg.
celtic_druid
19th October 2005, 15:57
Yes you would need to re-encode again.
No idea about remuxing. ffmpeg I guess?
Should be able to do it with oggzmerge I would imagine.
bond
20th October 2005, 17:07
Tick the store frames to an external file option and set it to ogg.thats the solution. remuxing stuff from avi to other formats is often a problem