[FFmpeg-devel] [PATCH v5 0/4] Explain what "context" means

[Michael Niedermayer]

On Thu, May 23, 2024 at 09:00:39PM +0100, Andrew Sayers wrote:
> NOTE: this patchset depends on [1], and should not be applied before that.
> 
> I think it's important to guide readers between parts of FFmpeg, because
> learning how the pieces of the puzzle fit together is a big part of the
> newbie experience.  So this patchset replaces the "@ref Context for foo"
> statements in public structs with "@see" blocks, giving us a hook we can
> hang more links on in future.
> 
> That said, there's a rule against internal links from private structs,
> so I've removed the @ref's from them.  By the way, is this rule written
> somewhere?  If not, where would be a good place to write it?
> And either way, it would be good to link to this as part of [2].
> 
> Previous patches had to change the language for many structs, but "@see" blocks
> avoid the need to include those changes in this patchset.  Rather than waste
> that work, I've temporarily moved those changes to the final patch in this set.
> My feelings about that last patch aren't strong, but I guess I'll propose them
> in a separate thread unless anyone wants them here or chucked altogether.
> 
> 
> I've rewritten AVOptions and AVClass based on feedback.  The new version
> reflects a hypothetical that's been going round my head all week...
> 
> Imagine you wanted to write a system that nudged people to try new codecs.
> It might say e.g. "you seem to be using H.264, would you like to try H.265?"
> Implementing that would probably involve a struct like:
> 
> struct AVOldNew {
>   AVClass* old;
>   AVClass* new;
> };

AVClass would describe the internal decoder structures. This would not be
correct at all in this example.
Thats like handing a man 2 CAD documents about 2 engines of 2 cars

If you wanted to suggest to get a tesla instead of a ford. One would have to
describe the 2 cars and their differences
thats 2 AVCodecDescriptor maybe

thx

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

It is a danger to trust the dream we wish for rather than
the science we have, -- Dr. Kenneth Brown
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