zoneminder/src/zm_monitorstream.h

//
// ZoneMinder MonitorStream Class Interfaces, $Date$, $Revision$
// 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_MONITORSTREAM_H
#define ZM_MONITORSTREAM_H

#include "zm.h"
#include "zm_coord.h"
#include "zm_image.h"
#include "zm_utils.h"
#include "zm_monitor.h"

class MonitorStream : public StreamBase {
  protected:
    typedef struct SwapImage {
      bool            valid;
      struct timeval  timestamp;
      char            file_name[PATH_MAX];
    } SwapImage;

  private:
    SwapImage *temp_image_buffer;
    int temp_image_buffer_count;
    int temp_read_index;
    int temp_write_index;

  protected:
    time_t ttl;
    int playback_buffer;
    bool delayed;
    int frame_count;

  protected:
    bool checkSwapPath(const char *path, bool create_path);
    bool sendFrame(const char *filepath, struct timeval *timestamp);
    bool sendFrame(Image *image, struct timeval *timestamp);
    void processCommand(const CmdMsg *msg);
    void SingleImage(int scale=100);
    void SingleImageRaw(int scale=100);
#ifdef HAVE_ZLIB_H
    void SingleImageZip(int scale=100);
#endif

  public:
    MonitorStream() : 
      temp_image_buffer(nullptr), temp_image_buffer_count(0), temp_read_index(0), temp_write_index(0),
      ttl(0), playback_buffer(0), delayed(false), frame_count(0) {
    }
    void setStreamBuffer(int p_playback_buffer) {
      playback_buffer = p_playback_buffer;
    }
    void setStreamTTL(time_t p_ttl) {
      ttl = p_ttl;
    }
    bool setStreamStart(int monitor_id) {
      return loadMonitor(monitor_id);
    }
    void runStream();
};

#endif // ZM_MONITORSTREAM_H