Function rsmpeg::ffi::av_hwframe_ctx_init

pub unsafe extern "C" fn av_hwframe_ctx_init(ref_: *mut AVBufferRef) -> i32

Finalize the context before use. This function must be called after the context is filled with all the required information and before it is attached to any frames.

@param ref a reference to the AVHWFramesContext @return 0 on success, a negative AVERROR code on failure