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1 /* GStreamer
2  * Copyright (C) <2019> Seungha Yang <seungha.yang@navercorp.com>
3  *
4  * This library is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Library General Public
6  * License as published by the Free Software Foundation; either
7  * version 2 of the License, or (at your option) any later version.
8  *
9  * This library is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12  * Library General Public License for more details.
13  *
14  * You should have received a copy of the GNU Library General Public
15  * License along with this library; if not, write to the
16  * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
17  * Boston, MA 02110-1301, USA.
18  */
19 
20 #ifndef __GST_CUDA_BASE_TRANSFORM_H__
21 #define __GST_CUDA_BASE_TRANSFORM_H__
22 
23 #include <gst/gst.h>
24 #include <gst/base/gstbasetransform.h>
25 #include <gst/video/video.h>
26 #include "gstcudacontext.h"
27 #include "gstcudabufferpool.h"
28 
29 G_BEGIN_DECLS
30 
31 #define GST_TYPE_CUDA_BASE_TRANSFORM             (gst_cuda_base_transform_get_type())
32 #define GST_CUDA_BASE_TRANSFORM(obj)             (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_CUDA_BASE_TRANSFORM,GstCudaBaseTransform))
33 #define GST_CUDA_BASE_TRANSFORM_CLASS(klass)     (G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_CUDA_BASE_TRANSFORM,GstCudaBaseTransformClass))
34 #define GST_CUDA_BASE_TRANSFORM_GET_CLASS(obj)   (G_TYPE_INSTANCE_GET_CLASS((obj), GST_TYPE_CUDA_BASE_TRANSFORM,GstCudaBaseTransformClass))
35 #define GST_IS_CUDA_BASE_TRANSFORM(obj)          (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_CUDA_BASE_TRANSFORM))
36 #define GST_IS_CUDA_BASE_TRANSFORM_CLASS(klass)  (G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_CUDA_BASE_TRANSFORM))
37 
38 typedef struct _GstCudaBaseTransform GstCudaBaseTransform;
39 typedef struct _GstCudaBaseTransformClass GstCudaBaseTransformClass;
40 
41 struct _GstCudaBaseTransform
42 {
43   GstBaseTransform parent;
44 
45   gboolean negotiated;
46 
47   GstVideoInfo in_info;
48   GstVideoInfo out_info;
49 
50   GstCudaContext *context;
51   CUstream cuda_stream;
52 
53   gint device_id;
54 };
55 
56 struct _GstCudaBaseTransformClass
57 {
58   GstBaseTransformClass parent_class;
59 
60   gboolean      (*set_info)           (GstCudaBaseTransform *filter,
61                                        GstCaps *incaps, GstVideoInfo *in_info,
62                                        GstCaps *outcaps, GstVideoInfo *out_info);
63 
64   GstFlowReturn (*transform_frame)    (GstCudaBaseTransform *filter,
65                                        GstVideoFrame *in_frame,
66                                        GstCudaMemory *in_cuda_mem,
67                                        GstVideoFrame *out_frame,
68                                        GstCudaMemory *out_cuda_mem);
69 };
70 
71 GType gst_cuda_base_transform_get_type (void);
72 
73 G_END_DECLS
74 
75 #endif /* __GST_CUDA_BASE_TRANSFORM_H__ */
76