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zm_monitor.cpp
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//
// ZoneMinder Monitor Class Implementation, $Date$, $Revision$
// 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.
//
#include <sys/types.h>
#include <sys/stat.h>
#include <arpa/inet.h>
#include <glob.h>
#include "zm.h"
#include "zm_db.h"
#include "zm_time.h"
#include "zm_mpeg.h"
#include "zm_signal.h"
#include "zm_monitor.h"
#if ZM_HAS_V4L
#include "zm_local_camera.h"
#endif // ZM_HAS_V4L
#include "zm_remote_camera.h"
#include "zm_remote_camera_http.h"
#if HAVE_LIBAVFORMAT
#include "zm_remote_camera_rtsp.h"
#endif // HAVE_LIBAVFORMAT
#include "zm_file_camera.h"
#if HAVE_LIBAVFORMAT
#include "zm_ffmpeg_camera.h"
#endif // HAVE_LIBAVFORMAT
#if HAVE_LIBVLC
#include "zm_libvlc_camera.h"
#endif // HAVE_LIBVLC
#if HAVE_LIBCURL
#include "zm_curl_camera.h"
#endif // HAVE_LIBCURL
#if ZM_MEM_MAPPED
#include <sys/mman.h>
#include <fcntl.h>
#else // ZM_MEM_MAPPED
#include <sys/ipc.h>
#include <sys/shm.h>
#endif // ZM_MEM_MAPPED
// SOLARIS - we don't have MAP_LOCKED on openSolaris/illumos
#ifndef MAP_LOCKED
#define MAP_LOCKED 0
#endif
//=============================================================================
std::vector<std::string> split(const std::string &s, char delim) {
std::vector<std::string> elems;
std::stringstream ss(s);
std::string item;
while(std::getline(ss, item, delim)) {
elems.push_back(trimSpaces(item));
}
return elems;
}
//=============================================================================
Monitor::MonitorLink::MonitorLink( int p_id, const char *p_name ) : id( p_id )
{
strncpy( name, p_name, sizeof(name) );
#if ZM_MEM_MAPPED
map_fd = -1;
snprintf( mem_file, sizeof(mem_file), "%s/zm.mmap.%d", config.path_map, id );
#else // ZM_MEM_MAPPED
shm_id = 0;
#endif // ZM_MEM_MAPPED
mem_size = 0;
mem_ptr = 0;
last_event = 0;
last_state = IDLE;
last_connect_time = 0;
connected = false;
}
Monitor::MonitorLink::~MonitorLink()
{
disconnect();
}
bool Monitor::MonitorLink::connect()
{
if ( !last_connect_time || (time( 0 ) - last_connect_time) > 60 )
{
last_connect_time = time( 0 );
mem_size = sizeof(SharedData) + sizeof(TriggerData);
Debug( 1, "link.mem.size=%d", mem_size );
#if ZM_MEM_MAPPED
map_fd = open( mem_file, O_RDWR, (mode_t)0600 );
if ( map_fd < 0 )
{
Debug( 3, "Can't open linked memory map file %s: %s", mem_file, strerror(errno) );
disconnect();
return( false );
}
while ( map_fd <= 2 ) {
int new_map_fd = dup(map_fd);
Warning( "Got one of the stdio fds for our mmap handle. map_fd was %d, new one is %d", map_fd, new_map_fd );
close(map_fd);
map_fd = new_map_fd;
}
struct stat map_stat;
if ( fstat( map_fd, &map_stat ) < 0 )
{
Error( "Can't stat linked memory map file %s: %s", mem_file, strerror(errno) );
disconnect();
return( false );
}
if ( map_stat.st_size == 0 )
{
Error( "Linked memory map file %s is empty: %s", mem_file, strerror(errno) );
disconnect();
return( false );
}
else if ( map_stat.st_size < mem_size )
{
Error( "Got unexpected memory map file size %ld, expected %d", map_stat.st_size, mem_size );
disconnect();
return( false );
}
mem_ptr = (unsigned char *)mmap( NULL, mem_size, PROT_READ|PROT_WRITE, MAP_SHARED, map_fd, 0 );
if ( mem_ptr == MAP_FAILED )
{
Error( "Can't map file %s (%d bytes) to memory: %s", mem_file, mem_size, strerror(errno) );
disconnect();
return( false );
}
#else // ZM_MEM_MAPPED
shm_id = shmget( (config.shm_key&0xffff0000)|id, mem_size, 0700 );
if ( shm_id < 0 )
{
Debug( 3, "Can't shmget link memory: %s", strerror(errno) );
connected = false;
return( false );
}
mem_ptr = (unsigned char *)shmat( shm_id, 0, 0 );
if ( mem_ptr < 0 )
{
Debug( 3, "Can't shmat link memory: %s", strerror(errno) );
connected = false;
return( false );
}
#endif // ZM_MEM_MAPPED
shared_data = (SharedData *)mem_ptr;
trigger_data = (TriggerData *)((char *)shared_data + sizeof(SharedData));
if ( !shared_data->valid )
{
Debug( 3, "Linked memory not initialised by capture daemon" );
disconnect();
return( false );
}
last_state = shared_data->state;
last_event = shared_data->last_event;
connected = true;
return( true );
}
return( false );
}
bool Monitor::MonitorLink::disconnect()
{
if ( connected )
{
connected = false;
#if ZM_MEM_MAPPED
if ( mem_ptr > 0 )
{
msync( mem_ptr, mem_size, MS_ASYNC );
munmap( mem_ptr, mem_size );
}
if ( map_fd >= 0 )
close( map_fd );
map_fd = -1;
#else // ZM_MEM_MAPPED
struct shmid_ds shm_data;
if ( shmctl( shm_id, IPC_STAT, &shm_data ) < 0 )
{
Debug( 3, "Can't shmctl: %s", strerror(errno) );
return( false );
}
shm_id = 0;
if ( shm_data.shm_nattch <= 1 )
{
if ( shmctl( shm_id, IPC_RMID, 0 ) < 0 )
{
Debug( 3, "Can't shmctl: %s", strerror(errno) );
return( false );
}
}
if ( shmdt( mem_ptr ) < 0 )
{
Debug( 3, "Can't shmdt: %s", strerror(errno) );
return( false );
}
#endif // ZM_MEM_MAPPED
mem_size = 0;
mem_ptr = 0;
}
return( true );
}
bool Monitor::MonitorLink::isAlarmed()
{
if ( !connected )
{
return( false );
}
return( shared_data->state == ALARM );
}
bool Monitor::MonitorLink::inAlarm()
{
if ( !connected )
{
return( false );
}
return( shared_data->state == ALARM || shared_data->state == ALERT );
}
bool Monitor::MonitorLink::hasAlarmed()
{
if ( shared_data->state == ALARM )
{
return( true );
}
else if( shared_data->last_event != (unsigned int)last_event )
{
last_event = shared_data->last_event;
}
return( false );
}
Monitor::Monitor(
int p_id,
const char *p_name,
const unsigned int p_server_id,
int p_function,
bool p_enabled,
const char *p_linked_monitors,
Camera *p_camera,
int p_orientation,
unsigned int p_deinterlacing,
const char *p_event_prefix,
const char *p_label_format,
const Coord &p_label_coord,
int p_label_size,
int p_image_buffer_count,
int p_warmup_count,
int p_pre_event_count,
int p_post_event_count,
int p_stream_replay_buffer,
int p_alarm_frame_count,
int p_section_length,
int p_frame_skip,
int p_motion_frame_skip,
double p_analysis_fps,
unsigned int p_analysis_update_delay,
int p_capture_delay,
int p_alarm_capture_delay,
int p_fps_report_interval,
int p_ref_blend_perc,
int p_alarm_ref_blend_perc,
bool p_track_motion,
Rgb p_signal_check_colour,
bool p_embed_exif,
Purpose p_purpose,
int p_n_zones,
Zone *p_zones[]
) : id( p_id ),
server_id( p_server_id ),
function( (Function)p_function ),
enabled( p_enabled ),
width( (p_orientation==ROTATE_90||p_orientation==ROTATE_270)?p_camera->Height():p_camera->Width() ),
height( (p_orientation==ROTATE_90||p_orientation==ROTATE_270)?p_camera->Width():p_camera->Height() ),
orientation( (Orientation)p_orientation ),
deinterlacing( p_deinterlacing ),
label_coord( p_label_coord ),
label_size( p_label_size ),
image_buffer_count( p_image_buffer_count ),
warmup_count( p_warmup_count ),
pre_event_count( p_pre_event_count ),
post_event_count( p_post_event_count ),
stream_replay_buffer( p_stream_replay_buffer ),
section_length( p_section_length ),
frame_skip( p_frame_skip ),
motion_frame_skip( p_motion_frame_skip ),
analysis_fps( p_analysis_fps ),
analysis_update_delay( p_analysis_update_delay ),
capture_delay( p_capture_delay ),
alarm_capture_delay( p_alarm_capture_delay ),
alarm_frame_count( p_alarm_frame_count ),
fps_report_interval( p_fps_report_interval ),
ref_blend_perc( p_ref_blend_perc ),
alarm_ref_blend_perc( p_alarm_ref_blend_perc ),
track_motion( p_track_motion ),
signal_check_colour( p_signal_check_colour ),
embed_exif( p_embed_exif ),
delta_image( width, height, ZM_COLOUR_GRAY8, ZM_SUBPIX_ORDER_NONE ),
ref_image( width, height, p_camera->Colours(), p_camera->SubpixelOrder() ),
purpose( p_purpose ),
last_motion_score(0),
camera( p_camera ),
n_zones( p_n_zones ),
zones( p_zones ),
timestamps( 0 ),
images( 0 ),
privacy_bitmask( NULL )
{
strncpy( name, p_name, sizeof(name)-1 );
strncpy( event_prefix, p_event_prefix, sizeof(event_prefix)-1 );
strncpy( label_format, p_label_format, sizeof(label_format)-1 );
// Change \n to actual line feeds
char *token_ptr = label_format;
const char *token_string = "\n";
while( ( token_ptr = strstr( token_ptr, token_string ) ) )
{
if ( *(token_ptr+1) )
{
*token_ptr = '\n';
token_ptr++;
strcpy( token_ptr, token_ptr+1 );
}
else
{
*token_ptr = '\0';
break;
}
}
fps = 0.0;
event_count = 0;
image_count = 0;
ready_count = warmup_count;
first_alarm_count = 0;
last_alarm_count = 0;
state = IDLE;
if ( alarm_frame_count < 1 )
alarm_frame_count = 1;
else if ( alarm_frame_count > MAX_PRE_ALARM_FRAMES )
alarm_frame_count = MAX_PRE_ALARM_FRAMES;
auto_resume_time = 0;
if ( strcmp( config.event_close_mode, "time" ) == 0 )
event_close_mode = CLOSE_TIME;
else if ( strcmp( config.event_close_mode, "alarm" ) == 0 )
event_close_mode = CLOSE_ALARM;
else
event_close_mode = CLOSE_IDLE;
Debug( 1, "monitor purpose=%d", purpose );
mem_size = sizeof(SharedData)
+ sizeof(TriggerData)
+ (image_buffer_count*sizeof(struct timeval))
+ (image_buffer_count*camera->ImageSize())
+ 64; /* Padding used to permit aligning the images buffer to 16 byte boundary */
Debug( 1, "mem.size=%d", mem_size );
mem_ptr = NULL;
if ( purpose == CAPTURE ) {
this->connect();
if ( ! mem_ptr ) exit(-1);
memset( mem_ptr, 0, mem_size );
shared_data->size = sizeof(SharedData);
shared_data->active = enabled;
shared_data->signal = false;
shared_data->state = IDLE;
shared_data->last_write_index = image_buffer_count;
shared_data->last_read_index = image_buffer_count;
shared_data->last_write_time = 0;
shared_data->last_event = 0;
shared_data->action = (Action)0;
shared_data->brightness = -1;
shared_data->hue = -1;
shared_data->colour = -1;
shared_data->contrast = -1;
shared_data->alarm_x = -1;
shared_data->alarm_y = -1;
shared_data->format = camera->SubpixelOrder();
shared_data->imagesize = camera->ImageSize();
trigger_data->size = sizeof(TriggerData);
trigger_data->trigger_state = TRIGGER_CANCEL;
trigger_data->trigger_score = 0;
trigger_data->trigger_cause[0] = 0;
trigger_data->trigger_text[0] = 0;
trigger_data->trigger_showtext[0] = 0;
shared_data->valid = true;
} else if ( purpose == ANALYSIS ) {
this->connect();
if ( ! mem_ptr ) exit(-1);
shared_data->state = IDLE;
shared_data->last_read_time = 0;
shared_data->alarm_x = -1;
shared_data->alarm_y = -1;
}
if ( ( ! mem_ptr ) || ! shared_data->valid )
{
if ( purpose != QUERY )
{
Error( "Shared data not initialised by capture daemon for monitor %s", name );
exit( -1 );
}
}
// Will this not happen every time a monitor is instantiated? Seems like all the calls to the Monitor constructor pass a zero for n_zones, then load zones after..
if ( !n_zones ) {
Debug( 1, "Monitor %s has no zones, adding one.", name );
n_zones = 1;
zones = new Zone *[1];
Coord coords[4] = { Coord( 0, 0 ), Coord( width-1, 0 ), Coord( width-1, height-1 ), Coord( 0, height-1 ) };
zones[0] = new Zone( this, 0, "All", Zone::ACTIVE, Polygon( sizeof(coords)/sizeof(*coords), coords ), RGB_RED, Zone::BLOBS );
}
start_time = last_fps_time = time( 0 );
event = 0;
Debug( 1, "Monitor %s has function %d", name, function );
Debug( 1, "Monitor %s LBF = '%s', LBX = %d, LBY = %d, LBS = %d", name, label_format, label_coord.X(), label_coord.Y(), label_size );
Debug( 1, "Monitor %s IBC = %d, WUC = %d, pEC = %d, PEC = %d, EAF = %d, FRI = %d, RBP = %d, ARBP = %d, FM = %d", name, image_buffer_count, warmup_count, pre_event_count, post_event_count, alarm_frame_count, fps_report_interval, ref_blend_perc, alarm_ref_blend_perc, track_motion );
if ( purpose == ANALYSIS )
{
static char path[PATH_MAX];
strncpy( path, config.dir_events, sizeof(path) );
struct stat statbuf;
errno = 0;
stat( path, &statbuf );
if ( errno == ENOENT || errno == ENOTDIR )
{
if ( mkdir( path, 0755 ) )
{
Error( "Can't make %s: %s", path, strerror(errno));
}
}
snprintf( path, sizeof(path), "%s/%d", config.dir_events, id );
errno = 0;
stat( path, &statbuf );
if ( errno == ENOENT || errno == ENOTDIR )
{
if ( mkdir( path, 0755 ) )
{
Error( "Can't make %s: %s", path, strerror(errno));
}
char temp_path[PATH_MAX];
snprintf( temp_path, sizeof(temp_path), "%d", id );
if ( chdir( config.dir_events ) < 0 )
Fatal( "Can't change directory to '%s': %s", config.dir_events, strerror(errno) );
if ( symlink( temp_path, name ) < 0 )
Fatal( "Can't symlink '%s' to '%s': %s", temp_path, name, strerror(errno) );
if ( chdir( ".." ) < 0 )
Fatal( "Can't change to parent directory: %s", strerror(errno) );
}
while( shared_data->last_write_index == (unsigned int)image_buffer_count
&& shared_data->last_write_time == 0)
{
Warning( "Waiting for capture daemon" );
sleep( 1 );
}
ref_image.Assign( width, height, camera->Colours(), camera->SubpixelOrder(), image_buffer[shared_data->last_write_index].image->Buffer(), camera->ImageSize());
n_linked_monitors = 0;
linked_monitors = 0;
adaptive_skip = true;
ReloadLinkedMonitors( p_linked_monitors );
}
}
bool Monitor::connect() {
#if ZM_MEM_MAPPED
snprintf( mem_file, sizeof(mem_file), "%s/zm.mmap.%d", config.path_map, id );
map_fd = open( mem_file, O_RDWR|O_CREAT, (mode_t)0600 );
if ( map_fd < 0 )
Fatal( "Can't open memory map file %s, probably not enough space free: %s", mem_file, strerror(errno) );
struct stat map_stat;
if ( fstat( map_fd, &map_stat ) < 0 )
Fatal( "Can't stat memory map file %s: %s, is the zmc process for this monitor running?", mem_file, strerror(errno) );
if ( map_stat.st_size != mem_size && purpose == CAPTURE ) {
// Allocate the size
if ( ftruncate( map_fd, mem_size ) < 0 ) {
Fatal( "Can't extend memory map file %s to %d bytes: %s", mem_file, mem_size, strerror(errno) );
}
} else if ( map_stat.st_size == 0 ) {
Error( "Got empty memory map file size %ld, is the zmc process for this monitor running?", map_stat.st_size, mem_size );
return false;
} else if ( map_stat.st_size != mem_size ) {
Error( "Got unexpected memory map file size %ld, expected %d", map_stat.st_size, mem_size );
return false;
} else {
#ifdef MAP_LOCKED
mem_ptr = (unsigned char *)mmap( NULL, mem_size, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_LOCKED, map_fd, 0 );
if ( mem_ptr == MAP_FAILED ) {
if ( errno == EAGAIN ) {
Debug( 1, "Unable to map file %s (%d bytes) to locked memory, trying unlocked", mem_file, mem_size );
#endif
mem_ptr = (unsigned char *)mmap( NULL, mem_size, PROT_READ|PROT_WRITE, MAP_SHARED, map_fd, 0 );
Debug( 1, "Mapped file %s (%d bytes) to locked memory, unlocked", mem_file, mem_size );
#ifdef MAP_LOCKED
}
}
#endif
if ( mem_ptr == MAP_FAILED )
Fatal( "Can't map file %s (%d bytes) to memory: %s(%d)", mem_file, mem_size, strerror(errno), errno );
}
#else // ZM_MEM_MAPPED
shm_id = shmget( (config.shm_key&0xffff0000)|id, mem_size, IPC_CREAT|0700 );
if ( shm_id < 0 ) {
Error( "Can't shmget, probably not enough shared memory space free: %s", strerror(errno));
exit( -1 );
}
mem_ptr = (unsigned char *)shmat( shm_id, 0, 0 );
if ( mem_ptr < 0 )
{
Error( "Can't shmat: %s", strerror(errno));
exit( -1 );
}
#endif // ZM_MEM_MAPPED
shared_data = (SharedData *)mem_ptr;
trigger_data = (TriggerData *)((char *)shared_data + sizeof(SharedData));
struct timeval *shared_timestamps = (struct timeval *)((char *)trigger_data + sizeof(TriggerData));
unsigned char *shared_images = (unsigned char *)((char *)shared_timestamps + (image_buffer_count*sizeof(struct timeval)));
if(((unsigned long)shared_images % 16) != 0) {
/* Align images buffer to nearest 16 byte boundary */
Debug(3,"Aligning shared memory images to the next 16 byte boundary");
shared_images = (uint8_t*)((unsigned long)shared_images + (16 - ((unsigned long)shared_images % 16)));
}
image_buffer = new Snapshot[image_buffer_count];
for ( int i = 0; i < image_buffer_count; i++ )
{
image_buffer[i].timestamp = &(shared_timestamps[i]);
image_buffer[i].image = new Image( width, height, camera->Colours(), camera->SubpixelOrder(), &(shared_images[i*camera->ImageSize()]) );
image_buffer[i].image->HoldBuffer(true); /* Don't release the internal buffer or replace it with another */
}
if ( (deinterlacing & 0xff) == 4)
{
/* Four field motion adaptive deinterlacing in use */
/* Allocate a buffer for the next image */
next_buffer.image = new Image( width, height, camera->Colours(), camera->SubpixelOrder());
next_buffer.timestamp = new struct timeval;
}
if ( ( purpose == ANALYSIS ) && analysis_fps )
{
// Size of pre event buffer must be greater than pre_event_count
// if alarm_frame_count > 1, because in this case the buffer contains
// alarmed images that must be discarded when event is created
pre_event_buffer_count = pre_event_count + alarm_frame_count - 1;
pre_event_buffer = new Snapshot[pre_event_buffer_count];
for ( int i = 0; i < pre_event_buffer_count; i++ )
{
pre_event_buffer[i].timestamp = new struct timeval;
pre_event_buffer[i].image = new Image( width, height, camera->Colours(), camera->SubpixelOrder());
}
}
return true;
}
Monitor::~Monitor()
{
if ( timestamps ) {
delete[] timestamps;
timestamps = 0;
}
if ( images ) {
delete[] images;
images = 0;
}
if ( privacy_bitmask ) {
delete[] privacy_bitmask;
privacy_bitmask = NULL;
}
if ( mem_ptr ) {
if ( event )
Info( "%s: %03d - Closing event %d, shutting down", name, image_count, event->Id() );
closeEvent();
if ( (deinterlacing & 0xff) == 4)
{
delete next_buffer.image;
delete next_buffer.timestamp;
}
for ( int i = 0; i < image_buffer_count; i++ )
{
delete image_buffer[i].image;
}
delete[] image_buffer;
} // end if mem_ptr
for ( int i = 0; i < n_zones; i++ )
{
delete zones[i];
}
delete[] zones;
delete camera;
if ( mem_ptr ) {
if ( purpose == ANALYSIS )
{
shared_data->state = state = IDLE;
shared_data->last_read_index = image_buffer_count;
shared_data->last_read_time = 0;
if ( analysis_fps )
{
for ( int i = 0; i < pre_event_buffer_count; i++ )
{
delete pre_event_buffer[i].image;
delete pre_event_buffer[i].timestamp;
}
delete[] pre_event_buffer;
}
}
else if ( purpose == CAPTURE )
{
shared_data->valid = false;
memset( mem_ptr, 0, mem_size );
}
#if ZM_MEM_MAPPED
if ( msync( mem_ptr, mem_size, MS_SYNC ) < 0 )
Error( "Can't msync: %s", strerror(errno) );
if ( munmap( mem_ptr, mem_size ) < 0 )
Fatal( "Can't munmap: %s", strerror(errno) );
close( map_fd );
if ( purpose == CAPTURE ) {
char mmap_path[PATH_MAX] = "";
snprintf( mmap_path, sizeof(mmap_path), "%s/zm.mmap.%d", config.path_map, id );
if ( unlink( mmap_path ) < 0 ) {
Warning( "Can't unlink '%s': %s", mmap_path, strerror(errno) );
}
}
#else // ZM_MEM_MAPPED
struct shmid_ds shm_data;
if ( shmctl( shm_id, IPC_STAT, &shm_data ) < 0 ) {
Error( "Can't shmctl: %s", strerror(errno) );
exit( -1 );
}
if ( shm_data.shm_nattch <= 1 ) {
if ( shmctl( shm_id, IPC_RMID, 0 ) < 0 ) {
Error( "Can't shmctl: %s", strerror(errno) );
exit( -1 );
}
}
#endif // ZM_MEM_MAPPED
} // end if mem_ptr
}
void Monitor::AddZones( int p_n_zones, Zone *p_zones[] )
{
for ( int i = 0; i < n_zones; i++ )
delete zones[i];
delete[] zones;
n_zones = p_n_zones;
zones = p_zones;
}
void Monitor::AddPrivacyBitmask( Zone *p_zones[] )
{
if ( privacy_bitmask )
delete[] privacy_bitmask;
privacy_bitmask = NULL;
Image *privacy_image = NULL;
for ( int i = 0; i < n_zones; i++ )
{
if ( p_zones[i]->IsPrivacy() )
{
if ( !privacy_image )
{
privacy_image = new Image( width, height, 1, ZM_SUBPIX_ORDER_NONE);
privacy_image->Clear();
}
privacy_image->Fill( 0xff, p_zones[i]->GetPolygon() );
privacy_image->Outline( 0xff, p_zones[i]->GetPolygon() );
}
} // end foreach zone
if ( privacy_image )
privacy_bitmask = privacy_image->Buffer();
}
Monitor::State Monitor::GetState() const
{
return( (State)shared_data->state );
}
int Monitor::GetImage( int index, int scale )
{
if ( index < 0 || index > image_buffer_count )
{
index = shared_data->last_write_index;
}
if ( index != image_buffer_count )
{
Image *image;
// If we are going to be modifying the snapshot before writing, then we need to copy it
if ( ( scale != ZM_SCALE_BASE ) || ( !config.timestamp_on_capture ) ) {
Snapshot *snap = &image_buffer[index];
Image *snap_image = snap->image;
alarm_image.Assign( *snap_image );
//write_image.Assign( *snap_image );
if ( scale != ZM_SCALE_BASE ) {
alarm_image.Scale( scale );
}
if ( !config.timestamp_on_capture ) {
TimestampImage( &alarm_image, snap->timestamp );
}
image = &alarm_image;
} else {
image = image_buffer[index].image;
}
static char filename[PATH_MAX];
snprintf( filename, sizeof(filename), "Monitor%d.jpg", id );
image->WriteJpeg( filename );
}
else
{
Error( "Unable to generate image, no images in buffer" );
}
return( 0 );
}
struct timeval Monitor::GetTimestamp( int index ) const
{
if ( index < 0 || index > image_buffer_count )
{
index = shared_data->last_write_index;
}
if ( index != image_buffer_count )
{
Snapshot *snap = &image_buffer[index];
return( *(snap->timestamp) );
}
else
{
static struct timeval null_tv = { 0, 0 };
return( null_tv );
}
}
unsigned int Monitor::GetLastReadIndex() const
{
return( shared_data->last_read_index!=(unsigned int)image_buffer_count?shared_data->last_read_index:-1 );
}
unsigned int Monitor::GetLastWriteIndex() const
{
return( shared_data->last_write_index!=(unsigned int)image_buffer_count?shared_data->last_write_index:-1 );
}
unsigned int Monitor::GetLastEvent() const
{
return( shared_data->last_event );
}
double Monitor::GetFPS() const
{
int index1 = shared_data->last_write_index;
if ( index1 == image_buffer_count )
{
return( 0.0 );
}
Snapshot *snap1 = &image_buffer[index1];
if ( !snap1->timestamp || !snap1->timestamp->tv_sec )
{
return( 0.0 );
}
struct timeval time1 = *snap1->timestamp;
int image_count = image_buffer_count;
int index2 = (index1+1)%image_buffer_count;
if ( index2 == image_buffer_count )
{
return( 0.0 );
}
Snapshot *snap2 = &image_buffer[index2];
while ( !snap2->timestamp || !snap2->timestamp->tv_sec )
{
if ( index1 == index2 )
{
return( 0.0 );
}
index2 = (index2+1)%image_buffer_count;
snap2 = &image_buffer[index2];
image_count--;
}
struct timeval time2 = *snap2->timestamp;
double time_diff = tvDiffSec( time2, time1 );
double curr_fps = image_count/time_diff;
if ( curr_fps < 0.0 )
{
//Error( "Negative FPS %f, time_diff = %lf (%d:%ld.%ld - %d:%ld.%ld), ibc: %d", curr_fps, time_diff, index2, time2.tv_sec, time2.tv_usec, index1, time1.tv_sec, time1.tv_usec, image_buffer_count );
return( 0.0 );
}
return( curr_fps );
}
useconds_t Monitor::GetAnalysisRate()
{
double capturing_fps = GetFPS();
if ( !analysis_fps )
{
return( 0 );
}
else if ( analysis_fps > capturing_fps )
{
Warning( "Analysis fps (%.2f) is greater than capturing fps (%.2f)", analysis_fps, capturing_fps );
return( 0 );
}
else
{
return( ( 1000000 / analysis_fps ) - ( 1000000 / capturing_fps ) );
}
}
void Monitor::UpdateAdaptiveSkip()
{
if ( config.opt_adaptive_skip )
{
double capturing_fps = GetFPS();
if ( adaptive_skip && analysis_fps && ( analysis_fps < capturing_fps ) )
{
Info( "Analysis fps (%.2f) is lower than capturing fps (%.2f), disabling adaptive skip feature", analysis_fps, capturing_fps );
adaptive_skip = false;
}
else if ( !adaptive_skip && ( !analysis_fps || ( analysis_fps >= capturing_fps ) ) )
{
Info( "Enabling adaptive skip feature" );
adaptive_skip = true;
}
}
else
{
adaptive_skip = false;
}
}
void Monitor::ForceAlarmOn( int force_score, const char *force_cause, const char *force_text )
{
trigger_data->trigger_state = TRIGGER_ON;
trigger_data->trigger_score = force_score;
strncpy( trigger_data->trigger_cause, force_cause, sizeof(trigger_data->trigger_cause) );
strncpy( trigger_data->trigger_text, force_text, sizeof(trigger_data->trigger_text) );
}
void Monitor::ForceAlarmOff()
{
trigger_data->trigger_state = TRIGGER_OFF;
}
void Monitor::CancelForced()
{
trigger_data->trigger_state = TRIGGER_CANCEL;
}
void Monitor::actionReload()
{
shared_data->action |= RELOAD;
}
void Monitor::actionEnable()
{
shared_data->action |= RELOAD;
static char sql[ZM_SQL_SML_BUFSIZ];
snprintf( sql, sizeof(sql), "update Monitors set Enabled = 1 where Id = '%d'", id );
if ( mysql_query( &dbconn, sql ) )
{
Error( "Can't run query: %s", mysql_error( &dbconn ) );
exit( mysql_errno( &dbconn ) );
}
}
void Monitor::actionDisable()
{
shared_data->action |= RELOAD;
static char sql[ZM_SQL_SML_BUFSIZ];
snprintf( sql, sizeof(sql), "update Monitors set Enabled = 0 where Id = '%d'", id );
if ( mysql_query( &dbconn, sql ) )
{
Error( "Can't run query: %s", mysql_error( &dbconn ) );
exit( mysql_errno( &dbconn ) );
}
}
void Monitor::actionSuspend()
{
shared_data->action |= SUSPEND;
}
void Monitor::actionResume()
{
shared_data->action |= RESUME;
}
int Monitor::actionBrightness( int p_brightness )
{
if ( purpose != CAPTURE )
{
if ( p_brightness >= 0 )
{
shared_data->brightness = p_brightness;
shared_data->action |= SET_SETTINGS;
int wait_loops = 10;
while ( shared_data->action & SET_SETTINGS )
{
if ( wait_loops-- )
usleep( 100000 );
else
{
Warning( "Timed out waiting to set brightness" );
return( -1 );
}
}
}
else
{
shared_data->action |= GET_SETTINGS;
int wait_loops = 10;
while ( shared_data->action & GET_SETTINGS )
{
if ( wait_loops-- )
usleep( 100000 );
else
{
Warning( "Timed out waiting to get brightness" );
return( -1 );
}
}
}
return( shared_data->brightness );
}
return( camera->Brightness( p_brightness ) );