Function ffio_read_indirect

pub unsafe extern "C" fn ffio_read_indirect(
    s: *mut AVIOContext,
    buf: *mut c_uchar,
    size: c_int,
    data: *mut *const c_uchar,
) -> c_int

Read size bytes from AVIOContext, returning a pointer. Note that the data pointed at by the returned pointer is only valid until the next call that references the same IO context. @param s IO context @param buf pointer to buffer into which to assemble the requested data if it is not available in contiguous addresses in the underlying buffer @param size number of bytes requested @param data address at which to store pointer: this will be a a direct pointer into the underlying buffer if the requested number of bytes are available at contiguous addresses, otherwise will be a copy of buf @return number of bytes read or AVERROR