Function rsmpeg::ffi::av_dict_copy

pub unsafe extern "C" fn av_dict_copy(
    dst: *mut *mut AVDictionary, 
    src: *const AVDictionary, 
    flags: i32
) -> i32

Copy entries from one AVDictionary struct into another. @param dst pointer to a pointer to a AVDictionary struct. If *dst is NULL, this function will allocate a struct for you and put it in *dst @param src pointer to source AVDictionary struct @param flags flags to use when setting entries in *dst @note metadata is read using the AV_DICT_IGNORE_SUFFIX flag @return 0 on success, negative AVERROR code on failure. If dst was allocated by this function, callers should free the associated memory.