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/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Author: Niels Keeman <nielskeeman@gmail.com>
*
*/
#ifndef _V4L2CAMERA_H
#define _V4L2CAMERA_H
#define NB_BUFFER 4
#include <binder/MemoryBase.h>
#include <binder/MemoryHeapBase.h>
#include <linux/videodev.h>
namespace android {
struct vdIn {
struct v4l2_capability cap;
struct v4l2_format format;
struct v4l2_buffer buf;
struct v4l2_requestbuffers rb;
void *mem[NB_BUFFER];
bool isStreaming;
int width;
int height;
int formatIn;
int framesizeIn;
};
class V4L2Camera {
public:
V4L2Camera();
~V4L2Camera();
int Open (const char *device, int width, int height, int pixelformat);
void Close ();
int Init ();
void Uninit ();
int StartStreaming ();
int StopStreaming ();
void GrabPreviewFrame (void *previewBuffer);
void GrabRecordFrame (void *recordBuffer);
sp<IMemory> GrabRawFrame ();
sp<IMemory> GrabJpegFrame ();
private:
struct vdIn *videoIn;
int fd;
int nQueued;
int nDequeued;
int saveYUYVtoJPEG (unsigned char *inputBuffer, int width, int height, FILE *file, int quality);
void convert(unsigned char *buf, unsigned char *rgb, int width, int height);
void yuv_to_rgb16(unsigned char y, unsigned char u, unsigned char v, unsigned char *rgb);
};
}; // namespace android
#endif
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