[FFmpeg-devel] Can the pixel format be changed between sws_scale() calls?

[Ramiro Polla]

Hi,

If I understood the code correctly, every time sws_scale() is called,
it runs a whole bunch of:
if (srcFormat == something)
    do_this()
else if (srcFormat == something_else)
    do_that()
...

for many different converters.

But {src,dst}Format cannot be changed from one call to another, since
the user doesn't even have access to struct SwsContext.

I just want to make sure:
is it safe to assume {src,dst}Format will not change, and therefore we
can assign a function pointer to the appropriate converter at
sws_getContext()?

Ramiro Polla