[Ffmpeg-devel] [PATCH] theora huffamn table

[matthieu castet]

Hi,

matthieu castet wrote:
> Hi,
> 
> Mike Melanson wrote:
> 
>> matthieu castet wrote:
>>
>>> Hi,
>>>
>>> matthieu castet wrote:
>>>
>>>> Hi,
>>>>
>>>> this patch allow to read the huffman table in theora header.
>>>>
>>>>
>>> Any comments ?
>>>
>>> Does huffman_table is need after init_vlc ?
>>> If not if could directly init the vlc.
>>
>>
>>
>>     Do you have any Theora samples that use non-VP31 Huffman tables so 
>> that we can test this?
> 
> In libtheora source, you have :
> #define NEW_FREQS 0 /* dbm - test new frequency tables */
> 
> #if NEW_FREQS
> /* New baseline frequency tables for encoder version >= 2 */
> 
> but the even if version >= 2, they used the old tables...
> 
> Changing the define could allow us to generate Theora samples with an 
> non-VP31 Huffman tables.
> 
> I don't know if new encoder like theora-exp 
> (http://svn.xiph.org/experimental/derf/theora-exp/) allow to change the 
> huffman tables.
> 
you could find a sample here : 
ftp://ftp.mplayerhq.hu/MPlayer/incoming/te.ogg

Matthieu