gstreamer/gst-libs/gst/gl/gstgldownload.h
2017-12-09 19:31:29 +00:00

123 lines
4.1 KiB
C

/*
* GStreamer
* Copyright (C) 2012 Matthew Waters <ystree00@gmail.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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GST_GL_DOWNLOAD_H__
#define __GST_GL_DOWNLOAD_H__
#include <gst/video/video.h>
#include <gst/gstmemory.h>
#include <gst/gl/gstgl_fwd.h>
G_BEGIN_DECLS
GType gst_gl_download_get_type (void);
#define GST_TYPE_GL_DOWNLOAD (gst_gl_download_get_type())
#define GST_GL_DOWNLOAD(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GL_DOWNLOAD,GstGLDownload))
#define GST_GL_DOWNLOAD_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_GL_DISPLAY,GstGLDownloadClass))
#define GST_IS_GL_DOWNLOAD(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GL_DOWNLOAD))
#define GST_IS_GL_DOWNLOAD_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_GL_DOWNLOAD))
#define GST_GL_DOWNLOAD_CAST(obj) ((GstGLDownload*)(obj))
/**
* GstGLDownload
* @parent: the parent object
* @lock: thread safety
* @display: a #GstGLDisplay
* @info: the output video info
*
* Download information about GL textures
*/
struct _GstGLDownload
{
GObject parent;
GMutex lock;
GstGLDisplay *display;
/* output data */
GstVideoInfo info;
/* <private> */
gpointer data[GST_VIDEO_MAX_PLANES];
gboolean initted;
/* used for the conversion */
GLuint fbo;
GLuint depth_buffer;
GLuint in_texture;
GLuint out_texture[GST_VIDEO_MAX_PLANES];
GstGLShader *shader;
GLint shader_attr_position_loc;
GLint shader_attr_texture_loc;
GstGLDownloadPrivate *priv;
gpointer _reserved[GST_PADDING];
};
/**
* GstGLDownloadClass:
*
* The #GstGLDownloadClass struct only contains private data
*/
struct _GstGLDownloadClass
{
GObjectClass object_class;
};
/**
* GST_GL_DOWNLOAD_FORMATS:
*
* The currently supported formats that can be downloaded
*/
#if !GST_GL_HAVE_GLES2
# define GST_GL_DOWNLOAD_FORMATS "{ RGB, RGBx, RGBA, BGR, BGRx, BGRA, xRGB, " \
"xBGR, ARGB, ABGR, I420, YV12, YUY2, UYVY, AYUV }"
#else /* GST_GL_HAVE_GLES2 */
# define GST_GL_DOWNLOAD_FORMATS "{ RGB, RGBx, RGBA, I420, YV12, YUY2, UYVY, AYUV }"
#endif /* !GST_GL_HAVE_GLES2 */
/**
* GST_GL_DOWNLOAD_VIDEO_CAPS:
*
* The currently supported #GstCaps that can be downloaded
*/
#define GST_GL_DOWNLOAD_VIDEO_CAPS GST_VIDEO_CAPS_MAKE (GST_GL_DOWNLOAD_FORMATS)
GstGLDownload * gst_gl_download_new (GstGLDisplay * display);
gboolean gst_gl_download_init_format (GstGLDownload * download, GstVideoFormat v_format,
guint out_width, guint out_height);
gboolean gst_gl_download_init_format_thread (GstGLDownload * download, GstVideoFormat v_format,
guint out_width, guint out_height);
gboolean gst_gl_download_perform_with_memory_thread (GstGLDownload * download, GstGLMemory * gl_mem);
gboolean gst_gl_download_perform_with_data_thread (GstGLDownload * download, GLuint texture_id,
gpointer data[GST_VIDEO_MAX_PLANES]);
gboolean gst_gl_download_perform_with_memory (GstGLDownload * download, GstGLMemory * gl_mem);
gboolean gst_gl_download_perform_with_data (GstGLDownload * download, GLuint texture_id,
gpointer data[GST_VIDEO_MAX_PLANES]);
G_END_DECLS
#endif /* __GST_GL_DOWNLOAD_H__ */