path: root/v4l2_vdin.h (plain)
blob: 5af1a9d12e179bc6240280c49d5c0a4eaa66f3b6

1	/*
2	* Copyright (C) 2013 The Android Open Source Project
3	*
4	* Licensed under the Apache License, Version 2.0 (the "License");
5	* you may not use this file except in compliance with the License.
6	* You may obtain a copy of the License at
7	*
8	* http://www.apache.org/licenses/LICENSE-2.0
9	*
10	* Unless required by applicable law or agreed to in writing, software
11	* distributed under the License is distributed on an "AS IS" BASIS,
12	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13	* See the License for the specific language governing permissions and
14	* limitations under the License.
15	*/
16	#include <signal.h>
17	#include <stdio.h>
18	#include <stdlib.h>
19	#include <string.h>
20	#include <fcntl.h>
21	#include <unistd.h>
22	#include <errno.h>
23	#include <sys/ioctl.h>
24	#include <sys/mman.h>
25	#include <sys/select.h>
26	#include <linux/videodev.h>
27	#include <sys/time.h>
28
29	#include <utils/KeyedVector.h>
30	#include <cutils/properties.h>
31	#include <sys/types.h>
32	#include <sys/stat.h>
33
34	namespace android {
35
36	#define NB_BUFFER 4
37
38	struct VideoInfo {
39	struct v4l2_capability cap;
40	struct v4l2_format format;
41	struct v4l2_buffer buf;
42	struct v4l2_requestbuffers rb;
43	void *mem[NB_BUFFER];
44	unsigned canvas[NB_BUFFER];
45	bool isStreaming;
46	int width;
47	int height;
48	int formatIn;
49	int framesizeIn;
50	};
51
52	class vdin_screen_source {
53	public:
54	vdin_screen_source();
55	~vdin_screen_source();
56
57	int start();
58	int stop();
59	int get_format();
60	int set_format(int width = 640, int height = 480, int color_format = V4L2_PIX_FMT_NV21);
61	int set_rotation(int degree);
62	int aquire_buffer(unsigned* buff_info);
63	int release_buffer(char* ptr);
64	private:
65	int mCurrentIndex;
66	KeyedVector<int, int> mBufs;
67	int mCameraHandle;
68	struct VideoInfo *mVideoInfo;
69	};
70
71	}