[FFmpeg-devel] [PATCH v2 2/4] ffmpeg: Add display_matrix option

[Gyan Doshi]

On 2022-08-16 01:32 am, Thilo Borgmann wrote:
>
>
> +    struct display_matrix_s {
> +        const AVClass *class;
> +        double  rotation;
> +        int     hflip;
> +        int     vflip;
> +    };

There should be a scale option too since the matrix encodes that 
transform as well. Ref. ISO/IEC 14496-12:2015 6.2.2

Regards,
Gyan