gstreamer/gst-libs/gst/gl/gstglupload.h
2017-12-09 19:31:25 +00:00

142 lines
4.9 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_UPLOAD_H__
#define __GST_GL_UPLOAD_H__
#include <gst/video/video.h>
#include <gst/gstmemory.h>
#include "gstglshader.h"
#include "gstgldisplay.h"
G_BEGIN_DECLS
/* forward declare */
typedef struct _GstGLMemory GstGLMemory;
typedef struct _GstGLDisplay GstGLDisplay;
GType gst_gl_upload_get_type (void);
#define GST_TYPE_GL_UPLOAD (gst_gl_upload_get_type())
#define GST_GL_UPLOAD(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GL_UPLOAD,GstGLUpload))
#define GST_GL_UPLOAD_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_GL_DISPLAY,GstGLUploadClass))
#define GST_IS_GL_UPLOAD(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GL_UPLOAD))
#define GST_IS_GL_UPLOAD_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_GL_UPLOAD))
#define GST_GL_UPLOAD_CAST(obj) ((GstGLUpload*)(obj))
typedef struct _GstGLUpload GstGLUpload;
typedef struct _GstGLUploadClass GstGLUploadClass;
/**
* GstGLUpload
* @parent: the parent object
* @lock: thread safety
* @display: a #GstGLDisplay
* @info: the output video info
*
* Upload information for GL textures
*/
struct _GstGLUpload
{
GObject parent;
GMutex lock;
GstGLDisplay *display;
/* input data */
GstVideoInfo info;
/* <private> */
gpointer data[GST_VIDEO_MAX_PLANES];
gboolean initted;
/* used for the conversion */
GLuint fbo;
GLuint depth_buffer;
GLuint out_texture;
GLuint in_texture[GST_VIDEO_MAX_PLANES];
guint in_width;
guint in_height;
GstGLShader *shader;
#ifdef OPENGL_ES2
GLint shader_attr_position_loc;
GLint shader_attr_texture_loc;
#endif
/* <private> */
gpointer _reserved[GST_PADDING];
};
/**
* GstGLUploadClass:
*
* The #GstGLUploadClass struct only contains private data
*/
struct _GstGLUploadClass
{
GObjectClass object_class;
};
/**
* GST_GL_UPLOAD_FORMATS:
*
* The currently supported formats that can be uploaded
*/
#ifndef OPENGL_ES2
# define GST_GL_UPLOAD_FORMATS "{ RGB, RGBx, RGBA, BGR, BGRx, BGRA, xRGB, " \
"xBGR, ARGB, ABGR, I420, YV12, YUY2, UYVY, AYUV }"
#else /* OPENGL_ES2 */
# define GST_GL_UPLOAD_FORMATS "{ RGB, RGBx, RGBA, I420, YV12, YUY2, UYVY, AYUV }"
#endif
/**
* GST_GL_UPLOAD_VIDEO_CAPS:
*
* The currently supported #GstCaps that can be uploaded
*/
#define GST_GL_UPLOAD_VIDEO_CAPS GST_VIDEO_CAPS_MAKE (GST_GL_UPLOAD_FORMATS)
GstGLUpload * gst_gl_upload_new (GstGLDisplay * display);
gboolean gst_gl_upload_init_format (GstGLUpload * upload, GstVideoFormat v_format,
guint in_width, guint in_height,
guint out_width, guint out_height);
gboolean gst_gl_upload_init_format_thread (GstGLUpload * upload, GstVideoFormat v_format,
guint in_width, guint in_height,
guint out_width, guint out_height);
gboolean gst_gl_upload_perform_with_memory (GstGLUpload * upload, GstGLMemory * gl_mem);
gboolean gst_gl_upload_perform_with_data (GstGLUpload * upload, GLuint texture_id,
gpointer data[GST_VIDEO_MAX_PLANES]);
gboolean gst_gl_upload_perform_with_memory_thread (GstGLUpload * upload, GstGLMemory * gl_mem);
gboolean gst_gl_upload_perform_with_data_thread (GstGLUpload * upload, GLuint texture_id,
gpointer data[GST_VIDEO_MAX_PLANES]);
GstGLUpload * gst_gl_display_find_upload (GstGLDisplay * display, GstVideoFormat v_format,
guint in_width, guint in_height,
guint out_width, guint out_height);
GstGLUpload * gst_gl_display_find_upload_unlocked (GstGLDisplay * display, GstVideoFormat v_format,
guint in_width, guint in_height,
guint out_width, guint out_height);
G_END_DECLS
#endif /* __GST_GL_UPLOAD_H__ */