[x264-devel] Re: tiles
Tobias Bergmann
tobias.bergmann at gmx.de
Fri Sep 30 18:16:28 CEST 2005
Sachin Patil wrote:
> reamer-s at Safe-mail.net wrote:
>
>> I am new to 264 so please excuse my ignorance. Can the multi-slice or
>> some other feature be used to segment the image into a few (perhaps
>> six or less) non-overlapping rectangular tiles, none of which
>> encompass a complete scan line of the original image? If not, is
>> there anything to prevent me from stictching an image together from
>> separately encoded tiles in a manner which will be transparent to most
>> decoders? If so, is this approach also likely to work with other
>> MPEG-4/AVC-like formats?
>>
>> RS
>>
>
> The concept of encoding in slices and stitching together a final
> bitstream is quiet frequently used in cases where a multiprocessor
> system is available to improve encoding speeds. The H264 standard itself
> supports the slice encoding feature very well. This approach will work
> with other AVC like formats if slice level encoding is supported.
> hth
> SP.
ASP supports it even better as no in-loop filter is involved and thus
multi-slice encoding can be completely transparent.
It's even not neccessary to lose quality when all threads have the
complete reference frames at their disposal :)
But no one volunteered to code that yet.
bis besser,
T0B1A5
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