1 /*
2  * dma_video_buffer.h - dma video buffer
3  *
4  *  Copyright (c) 2016 Intel Corporation
5  *
6  * Licensed under the Apache License, Version 2.0 (the "License");
7  * you may not use this file except in compliance with the License.
8  * You may obtain a copy of the License at
9  *
10  *      http://www.apache.org/licenses/LICENSE-2.0
11  *
12  * Unless required by applicable law or agreed to in writing, software
13  * distributed under the License is distributed on an "AS IS" BASIS,
14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15  * See the License for the specific language governing permissions and
16  * limitations under the License.
17  *
18  * Author: Wind Yuan <feng.yuan@intel.com>
19  */
20 #ifndef XCAM_DMA_VIDEO_BUFFER_H
21 #define XCAM_DMA_VIDEO_BUFFER_H
22 
23 #include <xcam_std.h>
24 #include <video_buffer.h>
25 #include <unistd.h>
26 
27 namespace XCam {
28 
29 class DmaVideoBuffer
30     : public VideoBuffer
31 {
32 public:
33     DmaVideoBuffer (const VideoBufferInfo &info, int dma_fd, bool need_close_fd = false);
34 
35     virtual ~DmaVideoBuffer ();
36 
37     virtual uint8_t *map ();
38     virtual bool unmap ();
39     virtual int get_fd ();
40 
41 private:
42 
43     XCAM_DEAD_COPY (DmaVideoBuffer);
44 
45 private:
46     int         _dma_fd;
47     bool        _need_close_fd;
48 };
49 
50 SmartPtr<DmaVideoBuffer> external_buf_to_dma_buf (XCamVideoBuffer *buf);
51 
52 }
53 
54 #endif //XCAM_DMA_VIDEO_BUFFER_H
55