gstvideoscale

typedef enum {
  GST_VIDEOSCALE_POINT_SAMPLE,
  GST_VIDEOSCALE_NEAREST,
  GST_VIDEOSCALE_BILINEAR,
  GST_VIDEOSCALE_BICUBIC
} GstVideoScaleMethod;

struct GstVideoScale {
  guint source_width;
  guint source_height;
  guint dest_width;
  guint dest_height;
  GstColorSpaceType format;
  GstVideoScaleMethod method;
  guint scale_bytes;
  /* private */
  guchar copy_row[8192];
  guchar *temp;
  GstVideoScaleScaler scale;
  void (*scaler) (GstVideoScale *scale, guchar *src, guchar *dest, gint sw, gint sh, gint dw, gint dh);
  guchar (*filter) (guchar *src, gdouble x, gdouble y, gint sw, gint sh);
};

void        (*GstVideoScaleScaler)          (GstVideoScale *scale,
                                             guchar *src,
                                             guchar *dest);

GstVideoScale* gst_videoscale_new           (gint sw,
                                             gint sh,
                                             gint dw,
                                             gint dh,
                                             GstColorSpaceType format,
                                             GstVideoScaleMethod method);

#define gst_videoscale_scale(scaler, src, dest) (scaler)->scale((scaler), (src), (dest))

void        gst_videoscale_destroy          (GstVideoScale *scale);