148 lines
4.3 KiB
C++
148 lines
4.3 KiB
C++
//
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// ZoneMinder Core Interfaces, $Date$, $Revision$
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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_EVENTSTREAM_H
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#define ZM_EVENTSTREAM_H
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#include "zm_image.h"
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#include "zm_stream.h"
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#include "zm_video.h"
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#include "zm_ffmpeg_input.h"
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#include "zm_monitor.h"
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#include "zm_storage.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "libavformat/avformat.h"
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#include "libavformat/avio.h"
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#include "libavcodec/avcodec.h"
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#ifdef __cplusplus
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}
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#endif
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class EventStream : public StreamBase {
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public:
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typedef enum { MODE_NONE, MODE_SINGLE, MODE_ALL, MODE_ALL_GAPLESS } StreamMode;
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static const std::string StreamMode_Strings[4];
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protected:
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struct FrameData {
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//unsigned long id;
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double timestamp;
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double offset;
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double delta;
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bool in_db;
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};
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struct EventData {
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uint64_t event_id;
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unsigned int monitor_id;
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unsigned long storage_id;
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unsigned long frame_count; // Value of Frames column in Event
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unsigned long last_frame_id; // Highest frame id known about. Can be < frame_count in incomplete events
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time_t start_time;
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time_t end_time;
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double duration;
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char path[PATH_MAX];
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int n_frames; // # of frame rows returned from database
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FrameData *frames;
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char video_file[PATH_MAX];
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Storage::Schemes scheme;
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int SaveJPEGs;
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Monitor::Orientation Orientation;
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};
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protected:
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static const int STREAM_PAUSE_WAIT = 250000; // Microseconds
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static const StreamMode DEFAULT_MODE = MODE_SINGLE;
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StreamMode mode;
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bool forceEventChange;
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long curr_frame_id;
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double curr_stream_time;
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bool send_frame;
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struct timeval start; // clock time when started the event
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EventData *event_data;
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protected:
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bool loadEventData(uint64_t event_id);
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bool loadInitialEventData(uint64_t init_event_id, unsigned int init_frame_id);
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bool loadInitialEventData(int monitor_id, time_t event_time);
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bool checkEventLoaded();
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void processCommand(const CmdMsg *msg);
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bool sendFrame(int delta_us);
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public:
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EventStream() :
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mode(DEFAULT_MODE),
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forceEventChange(false),
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curr_frame_id(0),
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curr_stream_time(0.0),
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send_frame(false),
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event_data(nullptr),
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storage(nullptr),
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ffmpeg_input(nullptr),
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// Used when loading frames from an mp4
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input_codec_context(nullptr),
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input_codec(nullptr)
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{}
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~EventStream() {
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if ( event_data ) {
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if ( event_data->frames ) {
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delete[] event_data->frames;
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event_data->frames = nullptr;
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}
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delete event_data;
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event_data = nullptr;
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}
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if ( monitor ) {
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delete monitor;
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monitor = nullptr;
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}
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if ( storage ) {
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delete storage;
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storage = nullptr;
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}
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if ( ffmpeg_input ) {
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delete ffmpeg_input;
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ffmpeg_input = nullptr;
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}
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}
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void setStreamStart(uint64_t init_event_id, unsigned int init_frame_id);
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void setStreamStart(int monitor_id, time_t event_time);
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void setStreamMode(StreamMode p_mode) { mode = p_mode; }
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void runStream() override;
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Image *getImage();
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private:
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bool send_file(const char *filepath);
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bool send_buffer(uint8_t * buffer, int size);
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Storage *storage;
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FFmpeg_Input *ffmpeg_input;
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AVCodecContext *input_codec_context;
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AVCodec *input_codec;
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};
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#endif // ZM_EVENTSTREAM_H
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