pub unsafe extern "C" fn av_frame_side_data_new(
sd: *mut *mut *mut AVFrameSideData,
nb_sd: *mut c_int,
type_: AVFrameSideDataType,
size: usize,
flags: c_uint,
) -> *mut AVFrameSideData展开描述
Add new side data entry to an array.
@param sd pointer to array of side data to which to add another entry, or to NULL in order to start a new array. @param nb_sd pointer to an integer containing the number of entries in the array. @param type type of the added side data @param size size of the side data @param flags Some combination of AV_FRAME_SIDE_DATA_FLAG_* flags, or 0.
@return newly added side data on success, NULL on error. @note In case of AV_FRAME_SIDE_DATA_FLAG_UNIQUE being set, entries of matching AVFrameSideDataType will be removed before the addition is attempted. @note In case of AV_FRAME_SIDE_DATA_FLAG_REPLACE being set, if an entry of the same type already exists, it will be replaced instead.