gmane.comp.multimedia.ogg.theora.general

Tom Sparks | 16 Aug 06:56

theora 1.1

what is going to be the differences between theora 1.0
and theora 1.1?
well there be a program that can transcode be between
formats?
what programs well support this newer format?
well currently theora file be still playable?

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xiphmont | 16 Aug 07:34

Re: theora 1.1

On Sat, Aug 16, 2008 at 1:00 AM, Tom Sparks <tom_a_sparks <at> yahoo.com.au> wrote:
> what is going to be the differences between theora 1.0
> and theora 1.1?
> well there be a program that can transcode be between
> formats?
> what programs well support this newer format?

The format itself is frozen. There are no format differences. The
software implementation will improve without altering compatability.

> well currently theora file be still playable?

yes.

Monty

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Charles Mason | 29 Aug 13:12

Re: theora 1.1

On Sat, Aug 16, 2008 at 6:34 AM,  <xiphmont <at> xiph.org> wrote:
> On Sat, Aug 16, 2008 at 1:00 AM, Tom Sparks <tom_a_sparks <at> yahoo.com.au> wrote:
>> what is going to be the differences between theora 1.0
>> and theora 1.1?
>> well there be a program that can transcode be between
>> formats?
>> what programs well support this newer format?
>
> The format itself is frozen. There are no format differences. The
> software implementation will improve without altering compatability.
>

Correct me if I am wrong but wasn't there talk of modifying the bit
stream format at some latter date to enable further enhancements to
come from the Thusnelda work.

Any change to the bit stream format is likely to break compatibility,
so I am sure if the change is ever made its not going to be a decision
taken lightly.

Incidentally from the demo site the work on Thusnelda seems to be
really paying dividends. It would be nice to be able to try the
Thusnelda encoder in ffmpeg2theora as that seems to be the tool most
people use to generate Theora files. Is the new Thusnelda encoder a
drop in replacement for the old reference encoder?

Keep up the good work.

Charlie M

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Ralph Giles | 29 Aug 19:31

Re: theora 1.1

On Fri, Aug 29, 2008 at 4:12 AM, Charles Mason <charlie.mas <at> gmail.com> wrote:

> Correct me if I am wrong but wasn't there talk of modifying the bit
> stream format at some latter date to enable further enhancements to
> come from the Thusnelda work.

Yes. We have ideas, as one does. As you say, this wouldn't be a step
taken lightly. Especially with Dirac available as a next-generation,
royalty-free codec.

> Is the new Thusnelda encoder a drop in replacement for the old reference encoder?

Yes.

 -r