[theora] Oggz 0.9.8 Released

aphid aphid at ucsc.edu
Sun Jul 20 19:04:47 PDT 2008

By accident I double clicked an oggzchopped theora file that was on my 
desktop - apprently Audacity was the default app to open up '.ogg' 
files; imagine my surprise when it launched, opened the file &properly 
recognized the audio track.  Rawk!


Michael Dale wrote:
> at least with the VLC playhead issue should be solved by giving 
> content length in response header. (if you wget the file and then host 
> it with apache sending out content-length it has a playhead and is 
> http seekable :)
> Giving content length would be beneficial for other reasons too like 
> generating %downloaded and be more friendly to caching/proxy systems 
> ... if just cutting a ogg file this should theoretically not be too 
> hard to calculate before sending out the stream no?
> peace
> --michael
> On Wed, 16 Jul 2008 15:58:03 +0900
>  "Conrad Parker" <conrad at metadecks.org> wrote:
>> 2008/7/12 aphid <aphid at ucsc.edu>:
>>> Conrad - thanks for the great work on this.
>>> Here are some observations with release oggzchop, using
>>>  as test stream.
>>> VLC:  when playing the stream over the net, VLC's playhead does not 
>>> move
>>> and the time index stays at 0:00:00.
>>> However, when the above is saved locally (I  used curl -O), it behaves
>>> ~normally.  The start time even begins at 15:22, even though it's the
>>> front of the file (which is pretty cool :D) and the playhead moves as
>>> normal.
>>> Quicktime via xiphQT (on intel mac): Audio and video are not in sync -
>>> both when streaming the file and playing it locally.  If I play the 
>>> file
>>> from the beginning (as opposed to 15m22s in) things are in sync so I'm
>>> assuming something is happening at a keyframe...
>> Hey,
>> thanks for testing these out. Perhaps we should make a wiki page to
>> track which players etc. can deal with Skeleton (ie. chopped streams)
>> properly, along the lines of:
>> http://wiki.xiph.org/index.php/MIME-Migration
>> ... which will of course involve documenting what needs to be done to
>> deal with them properly, which is probably atm only documented in the
>> annodex internet-drafts.
>> It's partly documented in:
>> http://wiki.xiph.org/index.php/Ogg_Skeleton
>> ie. it's mostly a matter of players handling the presentation and base
>> times properly.
>> K.
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