Re: [FFmpeg-devel] [PATCH v5] avcodec/cbs_vp8: Add support for VP8 codec bitstream

["Ronald S. Bultje" <rsbultje@gmail.com>]

Hi,

On Mon, Nov 6, 2023 at 7:07 AM Ronald S. Bultje <rsbultje@gmail.com> wrote:

> On Sun, Nov 5, 2023 at 11:13 PM Dai, Jianhui J <
> jianhui.j.dai-at-intel.com@ffmpeg.org> wrote:
>
>> > > +static const uint8_t vp8_token_update_probs[4][8][3][11] = {
>> >
>> > It would be nice if these symbols could be re-used from the existing vp8
>> > native decoder, instead of duplicating them? Both source + binary size
>> are
>> > relevant here.
>>
>> Including vp8data.h would introduce many unwanted static tables other
>> than vp8_token_update_probs and increase the binary size.
>> As suggested in patch v3, it is better to use local defined
>> vp8_token_update_probs.
>>
>
> I didn't mean to include vp8data.h. I mean to include a new *.h that
> declares extern const uint8_t vp8_token_update_probs[][][][] and move said
> table into a new *.c file. The point is to prevent symbol duplication.
>

And to elaborate further, in case it's unclear: the symbol move means the
native VP8 decoder would include this probability table using the same new
mechanism also. It would no longer exist in vp8data.h.

Ronald
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