Change #286510

Comments

avfilter/vf_scale_cuda: describe kernel passes independently
Each pass took its kernel, filter weights and planes from its position
in the chain, and the sample format parameters of its kernels from the
filter's input and output formats. Only the geometry came from the
buffers it reads and writes.

Describe every pass explicitly instead: its kernels, weights, written
plane groups, source and destination buffers, and the formats it reads
and writes. The fixed function and generic paths both build such a
plan, and processing a frame just runs its passes in order, passing
plane groups a pass does not write through from its source. This
makes adding passes that do not just read the input or write the
output, such as for color conversion, possible without special cases.

No functional change.

Assisted-By: Claude Opus 5.5

Changed files

• libavfilter/vf_scale_cuda.c