Function ff_alloc_a53_sei

pub unsafe extern "C" fn ff_alloc_a53_sei(
    frame: *const AVFrame,
    prefix_len: usize,
    data: *mut *mut c_void,
    sei_size: *mut usize,
) -> c_int

Check AVFrame for A53 side data and allocate and fill SEI message with A53 info

@param frame Raw frame to get A53 side data from @param prefix_len Number of bytes to allocate before SEI message @param data Pointer to a variable to store allocated memory Upon return the variable will hold NULL on error or if frame has no A53 info. Otherwise it will point to prefix_len uninitialized bytes followed by *sei_size SEI message @param sei_size Pointer to a variable to store generated SEI message length @return Zero on success, negative error code on failure