Quoting James Almer (2024-09-25 02:14:46)
> Based on a patch by Hacene Bouaroua.
> 
> Co-authored-by: Hacene Bouaroua <hbouar...@freebox.fr>
> Signed-off-by: James Almer <jamr...@gmail.com>
> ---
>  libavformat/avformat.h |  6 +++++
>  libavformat/isom.h     |  1 +
>  libavformat/mov.c      | 54 ++++++++++++++++++++++++++++++++++++++----
>  3 files changed, 57 insertions(+), 4 deletions(-)
> 
> diff --git a/libavformat/avformat.h b/libavformat/avformat.h
> index 56c1c80289..a54aac0f3a 100644
> --- a/libavformat/avformat.h
> +++ b/libavformat/avformat.h
> @@ -1082,6 +1082,12 @@ typedef struct AVStreamGroupTileGrid {
>       * final image before presentation.
>       */
>      int height;
> +
> +    /**
> +     * The angle in which the reconstructed image is rotated (in 
> anti-clockwise
> +     * direction) before presentation, in units of degrees.
> +     */
> +    AVRational rotation;

Should it not be a display matrix rather than just an angle?

-- 
Anton Khirnov
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