zoneminder/src/zm_camera.h

132 lines
4.4 KiB
C++

//
// ZoneMinder Camera Class Interface, $Date$, $Revision$
// Copyright (C) 2001-2008 Philip Coombes
//
// 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.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
#ifndef ZM_CAMERA_H
#define ZM_CAMERA_H
#include "zm_image.h"
#include <sys/ioctl.h>
#include <sys/types.h>
#include <memory>
class Monitor;
class ZMPacket;
//
// Abstract base class for cameras. This is intended just to express
// common attributes
//
class Camera {
protected:
typedef enum { LOCAL_SRC, REMOTE_SRC, FILE_SRC, FFMPEG_SRC, LIBVLC_SRC, CURL_SRC, VNC_SRC } SourceType;
const Monitor *monitor;
SourceType type;
unsigned int width;
unsigned int linesize;
unsigned int height;
unsigned int colours;
unsigned int subpixelorder;
unsigned int pixels;
unsigned long long imagesize;
int brightness;
int hue;
int colour;
int contrast;
bool capture;
bool record_audio;
int mVideoStreamId;
int mAudioStreamId;
AVCodecContext *mVideoCodecContext;
AVCodecContext *mAudioCodecContext;
AVStream *mVideoStream;
AVStream *mAudioStream;
AVFormatContext *mFormatContext; // One for video, one for audio
AVFormatContext *mSecondFormatContext; // One for video, one for audio
int64_t mFirstVideoPTS;
int64_t mFirstAudioPTS;
int64_t mLastVideoPTS;
int64_t mLastAudioPTS;
unsigned int bytes;
public:
Camera(
const Monitor* monitor,
SourceType p_type,
unsigned int p_width,
unsigned int p_height,
int p_colours,
int p_subpixelorder,
int p_brightness,
int p_contrast,
int p_hue,
int p_colour,
bool p_capture,
bool p_record_audio
);
virtual ~Camera();
SourceType Type() const { return type; }
bool IsLocal() const { return type == LOCAL_SRC; }
bool IsRemote() const { return type == REMOTE_SRC; }
bool IsFile() const { return type == FILE_SRC; }
bool IsFfmpeg() const { return type == FFMPEG_SRC; }
bool IsLibvlc() const { return type == LIBVLC_SRC; }
bool IscURL() const { return type == CURL_SRC; }
bool IsVNC() const { return type == VNC_SRC; }
unsigned int Width() const { return width; }
unsigned int LineSize() const { return linesize; }
unsigned int Height() const { return height; }
unsigned int Colours() const { return colours; }
unsigned int SubpixelOrder() const { return subpixelorder; }
unsigned int Pixels() const { return pixels; }
unsigned long long ImageSize() const { return imagesize; }
unsigned int Bytes() const { return bytes; };
int getFrequency() { return mAudioStream ? mAudioStream->codecpar->sample_rate : -1; }
int getChannels() { return mAudioStream ? mAudioStream->codecpar->channels : -1; }
virtual int Brightness( int/*p_brightness*/=-1 ) { return -1; }
virtual int Hue( int/*p_hue*/=-1 ) { return -1; }
virtual int Colour( int/*p_colour*/=-1 ) { return -1; }
virtual int Contrast( int/*p_contrast*/=-1 ) { return -1; }
bool CanCapture() const { return capture; }
bool SupportsNativeVideo() const {
return (type == FFMPEG_SRC);
//return (type == FFMPEG_SRC )||(type == REMOTE_SRC);
}
virtual AVStream *getVideoStream();
virtual AVStream *getAudioStream() { return mAudioStream; };
virtual AVCodecContext *getVideoCodecContext() { return mVideoCodecContext; };
virtual AVCodecContext *getAudioCodecContext() { return mAudioCodecContext; };
int getVideoStreamId() { return mVideoStreamId; };
int getAudioStreamId() { return mAudioStreamId; };
virtual int PrimeCapture() { return 0; }
virtual int PreCapture() = 0;
virtual int Capture(std::shared_ptr<ZMPacket> &p) = 0;
virtual int PostCapture() = 0;
virtual int Close() = 0;
};
#endif // ZM_CAMERA_H