Change #260057

Comments

swscale: explicitly track if a context is "legacy" or not
The legacy API is defined by sws_init_context(), sws_scale() etc., whereas
the "modern" API is defined by just using sws_scale_frame() without prior
init call.

This int allows us to cleanly distinguish the type of context, paving the
way for some minor refactoring.

As an immediate benefit, we now gain a bunch of explict error checks to
ensure the API is used correctly (i.e. sws_scale() not called before
sws_init_context()).

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Niklas Haas <git@haasn.dev>

Changed files

• libswscale/swscale.c
• libswscale/swscale_internal.h
• libswscale/utils.c