1 /*
2  * GStreamer
3  * Copyright (C) 2012 Matthew Waters <ystree00@gmail.com>
4  *
5  * This library is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU Library General Public
7  * License as published by the Free Software Foundation; either
8  * version 2 of the License, or (at your option) any later version.
9  *
10  * This library is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13  * Library General Public License for more details.
14  *
15  * You should have received a copy of the GNU Library General Public
16  * License along with this library; if not, write to the
17  * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
18  * Boston, MA 02110-1301, USA.
19  */
20 
21 #ifndef __GST_GL_COLOR_CONVERT_H__
22 #define __GST_GL_COLOR_CONVERT_H__
23 
24 #include <gst/video/video.h>
25 #include <gst/gstmemory.h>
26 
27 #include <gst/gl/gstgl_fwd.h>
28 
29 G_BEGIN_DECLS
30 
31 GST_GL_API
32 GType gst_gl_color_convert_get_type (void);
33 #define GST_TYPE_GL_COLOR_CONVERT (gst_gl_color_convert_get_type())
34 #define GST_GL_COLOR_CONVERT(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GL_COLOR_CONVERT,GstGLColorConvert))
35 #define GST_GL_COLOR_CONVERT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_GL_DISPLAY,GstGLColorConvertClass))
36 #define GST_IS_GL_COLOR_CONVERT(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GL_COLOR_CONVERT))
37 #define GST_IS_GL_COLOR_CONVERT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_GL_COLOR_CONVERT))
38 #define GST_GL_COLOR_CONVERT_CAST(obj) ((GstGLColorConvert*)(obj))
39 
40 /**
41  * GstGLColorConvert
42  *
43  * Opaque #GstGLColorConvert object
44  */
45 struct _GstGLColorConvert
46 {
47   /* <private> */
48   GstObject        parent;
49 
50   GstGLContext    *context;
51 
52   /* input data */
53   GstVideoInfo     in_info;
54   GstVideoInfo     out_info;
55 
56   gboolean         initted;
57   gboolean         passthrough;
58 
59   GstBuffer *    inbuf;
60   GstBuffer *    outbuf;
61 
62   /* used for the conversion */
63   GstGLFramebuffer *fbo;
64   GstGLShader     *shader;
65 
66   /* <private> */
67   GstGLColorConvertPrivate *priv;
68 
69   gpointer _reserved[GST_PADDING];
70 };
71 
72 /**
73  * GstGLColorConvertClass:
74  *
75  * The #GstGLColorConvertClass struct only contains private data
76  */
77 struct _GstGLColorConvertClass
78 {
79   /* <private> */
80   GstObjectClass object_class;
81 
82   gpointer _padding[GST_PADDING];
83 };
84 
85 /**
86  * GST_GL_COLOR_CONVERT_FORMATS:
87  *
88  * The currently supported formats that can be converted
89  */
90 #define GST_GL_COLOR_CONVERT_FORMATS "{ RGBA, RGB, RGBx, BGR, BGRx, BGRA, xRGB, " \
91                                "xBGR, ARGB, ABGR, Y444, I420, YV12, Y42B, " \
92                                "Y41B, NV12, NV21, YUY2, UYVY, AYUV, VUYA, " \
93                                "GRAY8, GRAY16_LE, GRAY16_BE, RGB16, BGR16, ARGB64 }"
94 
95 /**
96  * GST_GL_COLOR_CONVERT_VIDEO_CAPS:
97  *
98  * The currently supported #GstCaps that can be converted
99  */
100 #define GST_GL_COLOR_CONVERT_VIDEO_CAPS \
101     "video/x-raw(" GST_CAPS_FEATURE_MEMORY_GL_MEMORY "), "              \
102     "format = (string) " GST_GL_COLOR_CONVERT_FORMATS ", "              \
103     "width = " GST_VIDEO_SIZE_RANGE ", "                                \
104     "height = " GST_VIDEO_SIZE_RANGE ", "                               \
105     "framerate = " GST_VIDEO_FPS_RANGE ", "                             \
106     "texture-target = (string) { 2D, rectangle, external-oes } "        \
107     " ; "                                                               \
108     "video/x-raw(" GST_CAPS_FEATURE_MEMORY_GL_MEMORY ","                \
109     GST_CAPS_FEATURE_META_GST_VIDEO_OVERLAY_COMPOSITION "), "           \
110     "format = (string) " GST_GL_COLOR_CONVERT_FORMATS ", "              \
111     "width = " GST_VIDEO_SIZE_RANGE ", "                                \
112     "height = " GST_VIDEO_SIZE_RANGE ", "                               \
113     "framerate = " GST_VIDEO_FPS_RANGE ", "                             \
114     "texture-target = (string) { 2D, rectangle, external-oes }"
115 
116 GST_GL_API
117 GstGLColorConvert * gst_gl_color_convert_new (GstGLContext * context);
118 
119 GST_GL_API
120 GstCaps *   gst_gl_color_convert_transform_caps (GstGLContext * context,
121                                                  GstPadDirection direction,
122                                                  GstCaps * caps,
123                                                  GstCaps * filter);
124 GST_GL_API
125 GstCaps *   gst_gl_color_convert_fixate_caps    (GstGLContext * context,
126                                                  GstPadDirection direction,
127                                                  GstCaps * caps,
128                                                  GstCaps * other);
129 GST_GL_API
130 gboolean    gst_gl_color_convert_set_caps    (GstGLColorConvert * convert,
131                                               GstCaps           * in_caps,
132                                               GstCaps           * out_caps);
133 GST_GL_API
134 gboolean    gst_gl_color_convert_decide_allocation (GstGLColorConvert   * convert,
135                                                     GstQuery            * query);
136 
137 GST_GL_API
138 GstBuffer * gst_gl_color_convert_perform    (GstGLColorConvert * convert, GstBuffer * inbuf);
139 
140 G_END_DECLS
141 
142 #endif /* __GST_GL_COLOR_CONVERT_H__ */
143