+/**
+ * It will fill up a video_format_tvideo_format_t using the given arguments.
+ * Becarefull that the video_format_t must already be initialized.
+ */
+VLC_API void video_format_Setup( video_format_t *, vlc_fourcc_t i_chroma, int i_width, int i_height, int i_sar_num, int i_sar_den );
+
+/**
+ * It will copy the crop properties from a video_format_t to another.
+ */
+VLC_API void video_format_CopyCrop( video_format_t *, const video_format_t * );
+
+/**
+ * It will compute the crop/ar properties when scaling.
+ */
+VLC_API void video_format_ScaleCropAr( video_format_t *, const video_format_t * );
+
+/**
+ * This function will check if the first video format is similar
+ * to the second one.
+ */
+VLC_API bool video_format_IsSimilar( const video_format_t *, const video_format_t * );
+
+/**
+ * It prints details about the given video_format_t
+ */
+VLC_API void video_format_Print( vlc_object_t *, const char *, const video_format_t * );
+