gstvideoaffinetransformationmeta

gstvideoaffinetransformationmeta

Synopsis

#include <gst/video/gstvideoaffinetransformationmeta.h>

struct              GstVideoAffineTransformationMeta;
GstVideoAffineTransformationMeta * gst_buffer_add_video_affine_transformation_meta
                                                        (GstBuffer *buffer);
#define             gst_buffer_get_video_affine_transformation_meta(b)
void                gst_video_affine_transformation_meta_apply_matrix
                                                        (GstVideoAffineTransformationMeta *meta,
                                                         const gfloat matrix[16]);

Description

Details

struct GstVideoAffineTransformationMeta

struct GstVideoAffineTransformationMeta {
  GstMeta meta;

  gfloat matrix[16];
};

gst_buffer_add_video_affine_transformation_meta ()

GstVideoAffineTransformationMeta * gst_buffer_add_video_affine_transformation_meta
                                                        (GstBuffer *buffer);

Attaches GstVideoAffineTransformationMeta metadata to buffer with the given parameters.

buffer :

a GstBuffer

Returns :

the GstVideoAffineTransformationMeta on buffer. [transfer none]

Since 1.8


gst_buffer_get_video_affine_transformation_meta()

#define             gst_buffer_get_video_affine_transformation_meta(b)

gst_video_affine_transformation_meta_apply_matrix ()

void                gst_video_affine_transformation_meta_apply_matrix
                                                        (GstVideoAffineTransformationMeta *meta,
                                                         const gfloat matrix[16]);

Apply a transformation using the given 4x4 transformation matrix

meta :

a GstVideoAffineTransformationMeta

matrix :

a 4x4 transformation matrix to be applied

Since 1.8