Utility function to swap the endianness of a pixel format.
@paramin pix_fmt the pixel format
@return pixel format with swapped endianness if it exists, otherwise AV_PIX_FMT_NONE
See Implementation
Utility function to swap the endianness of a pixel format.
@paramin pix_fmt the pixel format
@return pixel format with swapped endianness if it exists, otherwise AV_PIX_FMT_NONE