mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-22 16:26:39 +00:00
73 lines
2.5 KiB
C
73 lines
2.5 KiB
C
/* Gstreamer video blending utility functions
|
|
*
|
|
* Copyright (C) <2011> Intel Corporation
|
|
* Copyright (C) <2011> Collabora Ltd.
|
|
* Copyright (C) <2011> Thibault Saunier <thibault.saunier@collabora.com>
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Library General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Library General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Library General Public
|
|
* License along with this library; if not, write to the
|
|
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
* Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
|
|
#ifndef __GST_VIDEO_BLEND__
|
|
#define __GST_VIDEO_BLEND__
|
|
|
|
#include <gst/gst.h>
|
|
#include <gst/video/video.h>
|
|
|
|
#define MAX_VIDEO_PLANES 4
|
|
|
|
typedef struct _GstBlendVideoFormatInfo GstBlendVideoFormatInfo;
|
|
|
|
/* GstBlendVideoFormatInfo:
|
|
* @fmt: The #GstVideoFormat describing the video format
|
|
* @width: The width of the video
|
|
* @height: The height of the video
|
|
* @pixels: The buffer containing the pixels of the video
|
|
* @size: The size in byte of @pixels
|
|
* @offset: The offsets of the different component of the video
|
|
* @stride: The stride of the different component of the video
|
|
*
|
|
* Information describing image properties containing necessary
|
|
* fields to do video blending.
|
|
*/
|
|
struct _GstBlendVideoFormatInfo
|
|
{
|
|
GstVideoFormat fmt;
|
|
|
|
gint width;
|
|
gint height;
|
|
|
|
guint8 * pixels;
|
|
gsize size;
|
|
|
|
/* YUV components: Y=0, U=1, V=2, A=3
|
|
* RGB components: R=0, G=1, B=2, A=3 */
|
|
gint offset[MAX_VIDEO_PLANES];
|
|
gint stride[MAX_VIDEO_PLANES];
|
|
};
|
|
|
|
void video_blend_format_info_init (GstBlendVideoFormatInfo * info,
|
|
guint8 *pixels, guint height,
|
|
guint width, GstVideoFormat fmt);
|
|
|
|
void video_blend_scale_linear_RGBA (GstBlendVideoFormatInfo * src,
|
|
gint dest_height, gint dest_width);
|
|
|
|
gboolean video_blend (GstBlendVideoFormatInfo * dest,
|
|
GstBlendVideoFormatInfo * src,
|
|
guint x, guint y);
|
|
|
|
#endif
|