integer underflow in Video::data(index: usize)

[RubenMovsesyan]

Im running Ubuntu 24.04 and using FFMPEG 7.1

there's an issue the the Video::data(index: usize) function where you sometimes get an integer underflow. The data function calls the Video::stride(index: usize) function from within which gets the linesize at that index which is set at somepoint by the avcodec_recieve_frame function. However, the linesize can be a negative value which is stated here: AVFrame. This is because if the data is flipped the stride width will be negative. Unless I just don't understand how the data function is supposed to be used I suggest implementing something along the lines of:

unsafe {
    slice::from_raw_parts(
        (*decoded.as_ptr()).data[index],
        match decoded.stride(index) as isize {
            size if size < 0 => (size * -1) as usize,
            size => size as usize,
        } * decoded.plane_height(index) as usize,
    )
};

In the data function here: data. The same goes for the data_mut function just below