174 lines
4.4 KiB
C++
174 lines
4.4 KiB
C++
//
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// ZoneMinder Local Camera Class Interface, $Date$, $Revision$
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// Copyright (C) 2001-2008 Philip Coombes
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// as published by the Free Software Foundation; either version 2
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// of the License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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//
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#ifndef ZM_LOCAL_CAMERA_H
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#define ZM_LOCAL_CAMERA_H
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#include "zm.h"
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#include "zm_camera.h"
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#include "zm_image.h"
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#include "zm_packetqueue.h"
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#if ZM_HAS_V4L
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#ifdef HAVE_LINUX_VIDEODEV_H
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#include <linux/videodev.h>
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#endif // HAVE_LINUX_VIDEODEV_H
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#ifdef HAVE_LIBV4L1_VIDEODEV_H
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#include <libv4l1-videodev.h>
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#endif // HAVE_LIB4VL1_VIDEODEV_H
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#ifdef HAVE_LINUX_VIDEODEV2_H
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#include <linux/videodev2.h>
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#endif // HAVE_LINUX_VIDEODEV2_H
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// Required on systems with v4l1 but without v4l2 headers
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#ifndef VIDEO_MAX_FRAME
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#define VIDEO_MAX_FRAME 32
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#endif
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#include "zm_ffmpeg.h"
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//
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// Class representing 'local' cameras, i.e. those which are
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// directly connect to the host machine and which are accessed
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// via a video interface.
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//
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class LocalCamera : public Camera
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{
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protected:
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#if ZM_HAS_V4L2
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struct V4L2MappedBuffer
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{
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void *start;
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size_t length;
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};
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struct V4L2Data
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{
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v4l2_cropcap cropcap;
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v4l2_crop crop;
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v4l2_format fmt;
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v4l2_requestbuffers reqbufs;
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V4L2MappedBuffer *buffers;
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v4l2_buffer *bufptr;
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};
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#endif // ZM_HAS_V4L2
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#if ZM_HAS_V4L1
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struct V4L1Data
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{
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int active_frame;
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video_mbuf frames;
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video_mmap *buffers;
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unsigned char *bufptr;
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};
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#endif // ZM_HAS_V4L1
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protected:
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std::string device;
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int channel;
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int standard;
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int palette;
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bool device_prime;
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bool channel_prime;
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int channel_index;
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unsigned int extras;
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unsigned int conversion_type; /* 0 = no conversion needed, 1 = use libswscale, 2 = zm internal conversion, 3 = jpeg decoding */
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convert_fptr_t conversion_fptr; /* Pointer to conversion function used */
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uint32_t AutoSelectFormat(int p_colours);
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static int camera_count;
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static int channel_count;
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static int channels[VIDEO_MAX_FRAME];
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static int standards[VIDEO_MAX_FRAME];
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static int vid_fd;
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static int v4l_version;
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bool v4l_multi_buffer;
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unsigned int v4l_captures_per_frame;
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#if ZM_HAS_V4L2
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static V4L2Data v4l2_data;
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#endif // ZM_HAS_V4L2
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#if ZM_HAS_V4L1
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static V4L1Data v4l1_data;
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#endif // ZM_HAS_V4L1
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#if HAVE_LIBSWSCALE
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static AVFrame **capturePictures;
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_AVPIXELFORMAT imagePixFormat;
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_AVPIXELFORMAT capturePixFormat;
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struct SwsContext *imgConversionContext;
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AVFrame *tmpPicture;
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#endif // HAVE_LIBSWSCALE
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static LocalCamera *last_camera;
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public:
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LocalCamera(
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int p_id,
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const std::string &device,
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int p_channel,
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int p_format,
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bool v4lmultibuffer,
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unsigned int v4lcapturesperframe,
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const std::string &p_method,
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int p_width,
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int p_height,
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int p_colours,
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int p_palette,
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int p_brightness,
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int p_contrast,
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int p_hue,
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int p_colour,
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bool p_capture,
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bool p_record_audio,
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unsigned int p_extras = 0);
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~LocalCamera();
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void Initialise();
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void Terminate();
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const std::string &Device() const { return( device ); }
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int Channel() const { return( channel ); }
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int Standard() const { return( standard ); }
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int Palette() const { return( palette ); }
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int Extras() const { return( extras ); }
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int Brightness( int p_brightness=-1 );
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int Hue( int p_hue=-1 );
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int Colour( int p_colour=-1 );
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int Contrast( int p_contrast=-1 );
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int PrimeCapture();
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int PreCapture();
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int Capture( Image &image );
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int PostCapture();
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int CaptureAndRecord( Image &image, timeval recording, char* event_directory ) {return(0);};
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int Close() { return 0; };
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static bool GetCurrentSettings( const char *device, char *output, int version, bool verbose );
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};
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#endif // ZM_HAS_V4L
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#endif // ZM_LOCAL_CAMERA_H
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