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motion.c
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motion.c
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/* motion.c
*
* Detect changes in a video stream.
* Copyright 2000 by Jeroen Vreeken (pe1rxq@amsat.org)
* This software is distributed under the GNU public license version 2
* See also the file 'COPYING'.
*
*/
// #include "ffmpeg.h"
#include "motion.h"
#if (defined(BSD) && !defined(PWCBSD))
#include "video_freebsd.h"
#else
#include "video.h"
#endif /* BSD */
#include "conf.h"
#include "alg.h"
#include "track.h"
#include "event.h"
#include "picture.h"
#include "rotate.h"
/* Forward declarations */
static int motion_init(struct context *cnt);
static void motion_cleanup(struct context *cnt);
/**
* tls_key_threadnr
*
* TLS key for storing thread number in thread-local storage.
*/
pthread_key_t tls_key_threadnr;
/**
* global_lock
*
* Protects any global variables (like 'threads_running') during updates,
* to prevent problems with multiple threads updating at the same time.
*/
//pthread_mutex_t global_lock = PTHREAD_MUTEX_INITIALIZER;
pthread_mutex_t global_lock;
/**
* cnt_list
*
* List of context structures, one for each main Motion thread.
*/
struct context **cnt_list = NULL;
/**
* threads_running
*
* Keeps track of number of Motion threads currently running. Also used
* by 'main' to know when all threads have exited.
*/
volatile int threads_running = 0;
/* Set this when we want main to end or restart */
volatile unsigned int finish = 0;
/* Log file used instead of stderr and syslog */
FILE *ptr_logfile = NULL;
/**
* restart
*
* Differentiates between a quit and a restart. When all threads have
* finished running, 'main' checks if 'restart' is true and if so starts
* up again (instead of just quitting).
*/
unsigned int restart = 0;
/**
* image_ring_resize
*
* This routine is called from motion_loop to resize the image precapture ringbuffer
* NOTE: This function clears all images in the old ring buffer
* Parameters:
*
* cnt Pointer to the motion context structure
* new_size The new size of the ring buffer
*
* Returns: nothing
*/
static void image_ring_resize(struct context *cnt, int new_size)
{
/*
* Only resize if :
* Not in an event and
* decreasing at last position in new buffer
* increasing at last position in old buffer
* e.g. at end of smallest buffer
*/
if (cnt->event_nr != cnt->prev_event) {
int smallest;
if (new_size < cnt->imgs.image_ring_size) /* Decreasing */
smallest = new_size;
else /* Increasing */
smallest = cnt->imgs.image_ring_size;
if (cnt->imgs.image_ring_in == smallest - 1 || smallest == 0) {
MOTION_LOG(NTC, TYPE_ALL, NO_ERRNO, "%s: Resizing pre_capture buffer to %d items",
new_size);
/* Create memory for new ring buffer */
struct image_data *tmp;
tmp = mymalloc(new_size * sizeof(struct image_data));
/*
* Copy all information from old to new
* Smallest is 0 at initial init
*/
if (smallest > 0)
memcpy(tmp, cnt->imgs.image_ring, sizeof(struct image_data) * smallest);
/* In the new buffers, allocate image memory */
{
int i;
for(i = smallest; i < new_size; i++) {
tmp[i].image = mymalloc(cnt->imgs.size);
memset(tmp[i].image, 0x80, cnt->imgs.size); /* initialize to grey */
}
}
/* Free the old ring */
free(cnt->imgs.image_ring);
/* Point to the new ring */
cnt->imgs.image_ring = tmp;
cnt->imgs.image_ring_size = new_size;
}
}
}
/**
* image_ring_destroy
*
* This routine is called when we want to free the ring
*
* Parameters:
*
* cnt Pointer to the motion context structure
*
* Returns: nothing
*/
static void image_ring_destroy(struct context *cnt)
{
int i;
/* Exit if don't have any ring */
if (cnt->imgs.image_ring == NULL)
return;
/* Free all image buffers */
for (i = 0; i < cnt->imgs.image_ring_size; i++)
free(cnt->imgs.image_ring[i].image);
/* Free the ring */
free(cnt->imgs.image_ring);
cnt->imgs.image_ring = NULL;
cnt->imgs.image_ring_size = 0;
}
/**
* image_save_as_preview
*
* This routine is called when we detect motion and want to save a image in the preview buffer
*
* Parameters:
*
* cnt Pointer to the motion context structure
* img Pointer to the image_data structure we want to set as preview image
*
* Returns: nothing
*/
static void image_save_as_preview(struct context *cnt, struct image_data *img)
{
void * image;
/* Save preview image pointer */
image = cnt->imgs.preview_image.image;
/* Copy all info */
memcpy(&cnt->imgs.preview_image.image, img, sizeof(struct image_data));
/* restore image pointer */
cnt->imgs.preview_image.image = image;
/* Copy image */
memcpy(cnt->imgs.preview_image.image, img->image, cnt->imgs.size);
/*
* If we set output_all to yes and during the event
* there is no image with motion, diffs is 0, we are not going to save the preview event
*/
if (cnt->imgs.preview_image.diffs == 0)
cnt->imgs.preview_image.diffs = 1;
/* draw locate box here when mode = LOCATE_PREVIEW */
if (cnt->locate_motion_mode == LOCATE_PREVIEW) {
if (cnt->locate_motion_style == LOCATE_BOX) {
alg_draw_location(&img->location, &cnt->imgs, cnt->imgs.width, cnt->imgs.preview_image.image,
LOCATE_BOX, LOCATE_NORMAL, cnt->process_thisframe);
} else if (cnt->locate_motion_style == LOCATE_REDBOX) {
alg_draw_red_location(&img->location, &cnt->imgs, cnt->imgs.width, cnt->imgs.preview_image.image,
LOCATE_REDBOX, LOCATE_NORMAL, cnt->process_thisframe);
} else if (cnt->locate_motion_style == LOCATE_CROSS) {
alg_draw_location(&img->location, &cnt->imgs, cnt->imgs.width, cnt->imgs.preview_image.image,
LOCATE_CROSS, LOCATE_NORMAL, cnt->process_thisframe);
} else if (cnt->locate_motion_style == LOCATE_REDCROSS) {
alg_draw_red_location(&img->location, &cnt->imgs, cnt->imgs.width, cnt->imgs.preview_image.image,
LOCATE_REDCROSS, LOCATE_NORMAL, cnt->process_thisframe);
}
}
}
/**
* context_init
*
* Initializes a context struct with the default values for all the
* variables.
*
* Parameters:
*
* cnt - the context struct to destroy
*
* Returns: nothing
*/
static void context_init(struct context *cnt)
{
/*
* We first clear the entire structure to zero, then fill in any
* values which have non-zero default values. Note that this
* assumes that a NULL address pointer has a value of binary 0
* (this is also assumed at other places within the code, i.e.
* there are instances of "if (ptr)"). Just for possible future
* changes to this assumption, any pointers which are intended
* to be initialised to NULL are listed within a comment.
*/
memset(cnt, 0, sizeof(struct context));
cnt->noise = 255;
cnt->lastrate = 25;
memcpy(&cnt->track, &track_template, sizeof(struct trackoptions));
cnt->pipe = -1;
cnt->mpipe = -1;
}
/**
* context_destroy
*
* Destroys a context struct by freeing allocated memory, calling the
* appropriate cleanup functions and finally freeing the struct itself.
*
* Parameters:
*
* cnt - the context struct to destroy
*
* Returns: nothing
*/
static void context_destroy(struct context *cnt)
{
unsigned int j;
/* Free memory allocated for config parameters */
for (j = 0; config_params[j].param_name != NULL; j++) {
if (config_params[j].copy == copy_string) {
void **val;
val = (void *)((char *)cnt+(int)config_params[j].conf_value);
if (*val) {
free(*val);
*val = NULL;
}
}
}
free(cnt);
}
/**
* sig_handler
*
* Our SIGNAL-Handler. We need this to handle alarms and external signals.
*/
static void sig_handler(int signo)
{
int i;
switch(signo) {
case SIGALRM:
/*
* Somebody (maybe we ourself) wants us to make a snapshot
* This feature triggers snapshots on ALL threads that have
* snapshot_interval different from 0.
*/
if (cnt_list) {
i = -1;
while (cnt_list[++i]) {
if (cnt_list[i]->conf.snapshot_interval)
cnt_list[i]->snapshot = 1;
}
}
break;
case SIGUSR1:
/*
* Ouch! We have been hit from the outside! Someone wants us to
* make a movie!
*/
if (cnt_list) {
i = -1;
while (cnt_list[++i])
cnt_list[i]->makemovie = 1;
}
break;
case SIGHUP:
restart = 1;
/*
* Fall through, as the value of 'restart' is the only difference
* between SIGHUP and the ones below.
*/
case SIGINT:
case SIGQUIT:
case SIGTERM:
/*
* Somebody wants us to quit! We should better finish the actual
* movie and end up!
*/
if (cnt_list) {
i = -1;
while (cnt_list[++i]) {
cnt_list[i]->makemovie = 1;
cnt_list[i]->finish = 1;
/*
* Don't restart thread when it ends,
* all threads restarts if global restart is set
*/
cnt_list[i]->restart = 0;
}
}
/*
* Set flag we want to quit main check threads loop
* if restart is set (above) we start up again
*/
finish = 1;
break;
case SIGSEGV:
exit(0);
}
}
/**
* sigchild_handler
*
* This function is a POSIX compliant replacement of the commonly used
* signal(SIGCHLD, SIG_IGN).
*/
static void sigchild_handler(int signo ATTRIBUTE_UNUSED)
{
#ifdef WNOHANG
while (waitpid(-1, NULL, WNOHANG) > 0) {};
#endif /* WNOHANG */
return;
}
/**
* motion_remove_pid
*
* This function remove the process id file ( pid file ) before motion exit.
*/
static void motion_remove_pid(void)
{
if ((cnt_list[0]->daemon) && (cnt_list[0]->conf.pid_file) && (restart == 0)) {
if (!unlink(cnt_list[0]->conf.pid_file))
MOTION_LOG(NTC, TYPE_ALL, NO_ERRNO, "%s: Removed process id file (pid file).");
else
MOTION_LOG(ERR, TYPE_ALL, SHOW_ERRNO, "%s: Error removing pid file");
}
if (ptr_logfile) {
MOTION_LOG(NTC, TYPE_ALL, NO_ERRNO, "%s: Closing logfile (%s).",
cnt_list[0]->conf.log_file);
myfclose(ptr_logfile);
set_log_mode(LOGMODE_SYSLOG);
ptr_logfile = NULL;
}
}
/**
* motion_detected
*
* Called from 'motion_loop' when motion is detected
* Can be called when no motion if emulate_motion is set!
*
* Parameters:
*
* cnt - current thread's context struct
* dev - video device file descriptor
* img - pointer to the captured image_data with detected motion
*/
static void motion_detected(struct context *cnt, int dev, struct image_data *img)
{
struct config *conf = &cnt->conf;
struct images *imgs = &cnt->imgs;
struct coord *location = &img->location;
/* Draw location */
if (cnt->locate_motion_mode == LOCATE_ON) {
if (cnt->locate_motion_style == LOCATE_BOX) {
alg_draw_location(location, imgs, imgs->width, img->image, LOCATE_BOX,
LOCATE_BOTH, cnt->process_thisframe);
} else if (cnt->locate_motion_style == LOCATE_REDBOX) {
alg_draw_red_location(location, imgs, imgs->width, img->image, LOCATE_REDBOX,
LOCATE_BOTH, cnt->process_thisframe);
} else if (cnt->locate_motion_style == LOCATE_CROSS) {
alg_draw_location(location, imgs, imgs->width, img->image, LOCATE_CROSS,
LOCATE_BOTH, cnt->process_thisframe);
} else if (cnt->locate_motion_style == LOCATE_REDCROSS) {
alg_draw_red_location(location, imgs, imgs->width, img->image, LOCATE_REDCROSS,
LOCATE_BOTH, cnt->process_thisframe);
}
}
/* Calculate how centric motion is if configured preview center*/
if (cnt->new_img & NEWIMG_CENTER) {
unsigned int distX = abs((imgs->width / 2) - location->x);
unsigned int distY = abs((imgs->height / 2) - location->y);
img->cent_dist = distX * distX + distY * distY;
}
/* Do things only if we have got minimum_motion_frames */
if (img->flags & IMAGE_TRIGGER) {
/* Take action if this is a new event and we have a trigger image */
if (cnt->event_nr != cnt->prev_event) {
/*
* Reset prev_event number to current event and save event time
* in both time_t and struct tm format.
*/
cnt->prev_event = cnt->event_nr;
cnt->eventtime = img->timestamp;
localtime_r(&cnt->eventtime, cnt->eventtime_tm);
/*
* Since this is a new event we create the event_text_string used for
* the %C conversion specifier. We may already need it for
* on_motion_detected_commend so it must be done now.
*/
mystrftime(cnt, cnt->text_event_string, sizeof(cnt->text_event_string),
cnt->conf.text_event, cnt->eventtime_tm, NULL, 0);
/* EVENT_FIRSTMOTION triggers on_event_start_command and event_ffmpeg_newfile */
event(cnt, EVENT_FIRSTMOTION, img->image, NULL, NULL, &img->timestamp_tm);
MOTION_LOG(NTC, TYPE_ALL, NO_ERRNO, "%s: Motion detected - starting event %d",
cnt->event_nr);
/* always save first motion frame as preview-shot, may be changed to an other one later */
if (cnt->new_img & (NEWIMG_FIRST | NEWIMG_BEST | NEWIMG_CENTER))
image_save_as_preview(cnt, img);
}
/* EVENT_MOTION triggers event_beep and on_motion_detected_command */
event(cnt, EVENT_MOTION, NULL, NULL, NULL, &img->timestamp_tm);
}
/* Limit framerate */
if (img->shot < conf->frame_limit) {
/*
* If config option stream_motion is enabled, send the latest motion detected image
* to the stream but only if it is not the first shot within a second. This is to
* avoid double frames since we already have sent a frame to the stream.
* We also disable this in setup_mode.
*/
if (conf->stream_motion && !conf->setup_mode && img->shot != 1)
event(cnt, EVENT_STREAM, img->image, NULL, NULL, &img->timestamp_tm);
/*
* Save motion jpeg, if configured
* Output the image_out (motion) picture.
*/
if (conf->motion_img)
event(cnt, EVENT_IMAGEM_DETECTED, NULL, NULL, NULL, &img->timestamp_tm);
}
/* if track enabled and auto track on */
if (cnt->track.type && cnt->track.active)
cnt->moved = track_move(cnt, dev, location, imgs, 0);
}
/**
* process_image_ring
*
* Called from 'motion_loop' to save images / send images to movie
*
* Parameters:
*
* cnt - current thread's context struct
* max_images - Max number of images to process
* Set to IMAGE_BUFFER_FLUSH to send/save all images in buffer
*/
#define IMAGE_BUFFER_FLUSH ((unsigned int)-1)
static void process_image_ring(struct context *cnt, unsigned int max_images)
{
/*
* We are going to send an event, in the events there is still
* some code that use cnt->current_image
* so set it temporary to our image
*/
struct image_data *saved_current_image = cnt->current_image;
/* If image is flaged to be saved and not saved yet, process it */
do {
/* Check if we should save/send this image, breakout if not */
if ((cnt->imgs.image_ring[cnt->imgs.image_ring_out].flags & (IMAGE_SAVE | IMAGE_SAVED)) != IMAGE_SAVE)
break;
/* Set inte global cotext that we are working with this image */
cnt->current_image = &cnt->imgs.image_ring[cnt->imgs.image_ring_out];
if (cnt->imgs.image_ring[cnt->imgs.image_ring_out].shot < cnt->conf.frame_limit) {
if (cnt->log_level >= DBG) {
char tmp[32];
const char *t;
if (cnt->imgs.image_ring[cnt->imgs.image_ring_out].flags & IMAGE_TRIGGER)
t = "Trigger";
else if (cnt->imgs.image_ring[cnt->imgs.image_ring_out].flags & IMAGE_MOTION)
t = "Motion";
else if (cnt->imgs.image_ring[cnt->imgs.image_ring_out].flags & IMAGE_PRECAP)
t = "Precap";
else if (cnt->imgs.image_ring[cnt->imgs.image_ring_out].flags & IMAGE_POSTCAP)
t = "Postcap";
else
t = "Other";
mystrftime(cnt, tmp, sizeof(tmp), "%H%M%S-%q",
&cnt->imgs.image_ring[cnt->imgs.image_ring_out].timestamp_tm, NULL, 0);
draw_text(cnt->imgs.image_ring[cnt->imgs.image_ring_out].image, 10, 20,
cnt->imgs.width, tmp, cnt->conf.text_double);
draw_text(cnt->imgs.image_ring[cnt->imgs.image_ring_out].image, 10, 30,
cnt->imgs.width, t, cnt->conf.text_double);
}
//smoothvideo: payne 10/15/2008
//located in two places
/* process this only if we're outputting to a movie */
if (cnt->conf.smooth_video && cnt->conf.useextpipe) {
if (cnt->prevtv.tv_sec > 0) {
time_t elapsedus = ((cnt->imgs.image_ring[cnt->imgs.image_ring_out].tv.tv_sec - cnt->prevtv.tv_sec) * 1000000) +
(cnt->imgs.image_ring[cnt->imgs.image_ring_out].tv.tv_usec - cnt->prevtv.tv_usec);
int myinsertnum = ((elapsedus + cnt->leftovers) / cnt->usinterval);
/* the larger loop we're in is only called to process
* motion -- there will be one frame processed later
* REGARDLESS of what we do here, so, account for it */
cnt->leftovers += elapsedus - (cnt->usinterval*(myinsertnum+1));
if (cnt_list[0]->conf.log_level >= 2)
motion_log(LOG_INFO, 0, "current, prev, fps, us, interval, insertnum, leftovers: "
"%d.%06ld, %d.%06ld, %d, %d, %d, %d, %d",
cnt->imgs.image_ring[cnt->imgs.image_ring_out].tv.tv_sec,
cnt->imgs.image_ring[cnt->imgs.image_ring_out].tv.tv_usec,
cnt->prevtv.tv_sec, cnt->prevtv.tv_usec, cnt->movie_fps, elapsedus,
cnt->usinterval, myinsertnum, cnt->leftovers);
while (myinsertnum > 0) {
event(cnt, EVENT_FFMPEG_PUT, cnt->previmg, NULL, NULL,
&cnt->imgs.image_ring[cnt->imgs.image_ring_out].timestamp_tm);
myinsertnum--;
}
}
cnt->prevtv = cnt->imgs.image_ring[cnt->imgs.image_ring_out].tv;
memcpy(cnt->previmg, cnt->imgs.image_ring[cnt->imgs.image_ring_out].image, cnt->imgs.size);
}
/* Output the picture to jpegs (if motion), ffmpeg and extpipe (regardless)*/
if ((cnt->imgs.image_ring[cnt->imgs.image_ring_out].flags & IMAGE_MOTION) &&
! (cnt->imgs.image_ring[cnt->imgs.image_ring_out].flags & IMAGE_PRECAP)) {
event(cnt, EVENT_IMAGE_DETECTED,
cnt->imgs.image_ring[cnt->imgs.image_ring_out].image, NULL, NULL,
&cnt->imgs.image_ring[cnt->imgs.image_ring_out].timestamp_tm);
} else {
event(cnt, EVENT_FFMPEG_PUT,
cnt->imgs.image_ring[cnt->imgs.image_ring_out].image, NULL, NULL,
&cnt->imgs.image_ring[cnt->imgs.image_ring_out].timestamp_tm);
}
}
/* Mark the image as saved */
cnt->imgs.image_ring[cnt->imgs.image_ring_out].flags |= IMAGE_SAVED;
/* Store it as a preview image, only if it have motion */
if (cnt->imgs.image_ring[cnt->imgs.image_ring_out].flags & IMAGE_MOTION) {
/* Check for most significant preview-shot when output_pictures=best */
if (cnt->new_img & NEWIMG_BEST) {
if (cnt->imgs.image_ring[cnt->imgs.image_ring_out].diffs > cnt->imgs.preview_image.diffs) {
image_save_as_preview(cnt, &cnt->imgs.image_ring[cnt->imgs.image_ring_out]);
}
}
/* Check for most significant preview-shot when output_pictures=center */
if (cnt->new_img & NEWIMG_CENTER) {
if (cnt->imgs.image_ring[cnt->imgs.image_ring_out].cent_dist < cnt->imgs.preview_image.cent_dist) {
image_save_as_preview(cnt, &cnt->imgs.image_ring[cnt->imgs.image_ring_out]);
}
}
}
/* Increment to image after last sended */
if (++cnt->imgs.image_ring_out >= cnt->imgs.image_ring_size)
cnt->imgs.image_ring_out = 0;
if (max_images != IMAGE_BUFFER_FLUSH) {
max_images--;
/* breakout if we have done max_images */
if (max_images == 0)
break;
}
/* loop until out and in is same e.g. buffer empty */
} while (cnt->imgs.image_ring_out != cnt->imgs.image_ring_in);
/* restore global context values */
cnt->current_image = saved_current_image;
}
/**
* motion_init
*
* This routine is called from motion_loop (the main thread of the program) to do
* all of the initialisation required before starting the actual run.
*
* Parameters:
*
* cnt Pointer to the motion context structure
*
* Returns: 0 OK
* -1 Fatal error, open loopback error
* -2 Fatal error, open SQL database error
* -3 Fatal error, image dimensions are not modulo 16
*/
static int motion_init(struct context *cnt)
{
FILE *picture;
/* Store thread number in TLS. */
pthread_setspecific(tls_key_threadnr, (void *)((unsigned long)cnt->threadnr));
cnt->currenttime_tm = mymalloc(sizeof(struct tm));
cnt->eventtime_tm = mymalloc(sizeof(struct tm));
/* Init frame time */
gettimeofday(&cnt->tv, NULL);
cnt->currenttime = cnt->tv.tv_sec;
localtime_r(&cnt->currenttime, cnt->currenttime_tm);
cnt->smartmask_speed = 0;
/*
* We initialize cnt->event_nr to 1 and cnt->prev_event to 0 (not really needed) so
* that certain code below does not run until motion has been detected the first time
*/
cnt->event_nr = 1;
cnt->prev_event = 0;
cnt->lightswitch_framecounter = 0;
cnt->detecting_motion = 0;
cnt->makemovie = 0;
MOTION_LOG(NTC, TYPE_ALL, NO_ERRNO, "%s: Thread %d started , motion detection %s",
(unsigned long)pthread_getspecific(tls_key_threadnr), cnt->pause ? "Disabled":"Enabled");
if (!cnt->conf.filepath)
cnt->conf.filepath = mystrdup(".");
/* set the device settings */
cnt->video_dev = vid_start(cnt);
/*
* We failed to get an initial image from a camera
* So we need to guess height and width based on the config
* file options.
*/
if (cnt->video_dev == -1) {
MOTION_LOG(WRN, TYPE_ALL, NO_ERRNO, "%s: Could not fetch initial image from camera "
"Motion continues using width and height from config file(s)");
cnt->imgs.width = cnt->conf.width;
cnt->imgs.height = cnt->conf.height;
cnt->imgs.size = cnt->conf.width * cnt->conf.height * 3 / 2;
cnt->imgs.motionsize = cnt->conf.width * cnt->conf.height;
cnt->imgs.type = VIDEO_PALETTE_YUV420P;
} else if (cnt->video_dev == -2) {
MOTION_LOG(WRN, TYPE_ALL, NO_ERRNO, "%s: Could not fetch initial image from camera "
"Motion only supports width and height modulo 16");
return -3;
}
/* setup cnt->previmg (previous img for ffmpeg streaming) */
cnt->previmg = mymalloc(cnt->imgs.size);
memset(cnt->previmg, 0x80, cnt->imgs.size); /* initialize to grey */
image_ring_resize(cnt, 1); /* Create a initial precapture ring buffer with 1 frame */
cnt->imgs.ref = mymalloc(cnt->imgs.size);
cnt->imgs.out = mymalloc(cnt->imgs.size);
memset(cnt->imgs.out, 0, cnt->imgs.size);
/* contains the moving objects of ref. frame */
cnt->imgs.ref_dyn = mymalloc(cnt->imgs.motionsize * sizeof(cnt->imgs.ref_dyn));
cnt->imgs.image_virgin = mymalloc(cnt->imgs.size);
cnt->imgs.smartmask = mymalloc(cnt->imgs.motionsize);
cnt->imgs.smartmask_final = mymalloc(cnt->imgs.motionsize);
cnt->imgs.smartmask_buffer = mymalloc(cnt->imgs.motionsize * sizeof(cnt->imgs.smartmask_buffer));
cnt->imgs.labels = mymalloc(cnt->imgs.motionsize * sizeof(cnt->imgs.labels));
cnt->imgs.labelsize = mymalloc((cnt->imgs.motionsize/2+1) * sizeof(cnt->imgs.labelsize));
/* Set output picture type */
if (!strcmp(cnt->conf.picture_type, "ppm"))
cnt->imgs.picture_type = IMAGE_TYPE_PPM;
else
cnt->imgs.picture_type = IMAGE_TYPE_JPEG;
/* allocate buffer here for preview buffer */
cnt->imgs.preview_image.image = mymalloc(cnt->imgs.size);
/*
* Allocate a buffer for temp. usage in some places
* Only despeckle & bayer2rgb24() for now for now...
*/
cnt->imgs.common_buffer = mymalloc(3 * cnt->imgs.width * cnt->imgs.height);
/*
* Now is a good time to init rotation data. Since vid_start has been
* called, we know that we have imgs.width and imgs.height. When capturing
* from a V4L device, these are copied from the corresponding conf values
* in vid_start. When capturing from a netcam, they get set in netcam_start,
* which is called from vid_start.
*
* rotate_init will set cap_width and cap_height in cnt->rotate_data.
*/
rotate_init(cnt); /* rotate_deinit is called in main */
/* Capture first image, or we will get an alarm on start */
if (cnt->video_dev > 0) {
int i;
for (i = 0; i < 5; i++) {
if (vid_next(cnt, cnt->imgs.image_virgin) == 0)
break;
SLEEP(2, 0);
}
if (i >= 5) {
memset(cnt->imgs.image_virgin, 0x80, cnt->imgs.size); /* initialize to grey */
draw_text(cnt->imgs.image_virgin, 10, 20, cnt->imgs.width,
"Error capturing first image", cnt->conf.text_double);
MOTION_LOG(ERR, TYPE_ALL, NO_ERRNO, "%s: Error capturing first image");
}
}
/* create a reference frame */
alg_update_reference_frame(cnt, RESET_REF_FRAME);
#if defined(HAVE_LINUX_VIDEODEV_H) && !defined(WITHOUT_V4L) && !defined(BSD)
/* open video loopback devices if enabled */
if (cnt->conf.vidpipe) {
MOTION_LOG(NTC, TYPE_ALL, NO_ERRNO, "%s: Opening video loopback device for normal pictures");
/* vid_startpipe should get the output dimensions */
cnt->pipe = vid_startpipe(cnt->conf.vidpipe, cnt->imgs.width, cnt->imgs.height, cnt->imgs.type);
if (cnt->pipe < 0) {
MOTION_LOG(ERR, TYPE_ALL, NO_ERRNO, "%s: Failed to open video loopback for normal pictures");
return -1;
}
}
if (cnt->conf.motionvidpipe) {
MOTION_LOG(NTC, TYPE_ALL, NO_ERRNO, "%s: Opening video loopback device for motion pictures");
/* vid_startpipe should get the output dimensions */
cnt->mpipe = vid_startpipe(cnt->conf.motionvidpipe, cnt->imgs.width, cnt->imgs.height, cnt->imgs.type);
if (cnt->mpipe < 0) {
MOTION_LOG(ERR, TYPE_ALL, NO_ERRNO, "%s: Failed to open video loopback for motion pictures");
return -1;
}
}
#endif /* !WITHOUT_V4L && !BSD */
/* Load the mask file if any */
if (cnt->conf.mask_file) {
if ((picture = myfopen(cnt->conf.mask_file, "r", 0))) {
/*
* NOTE: The mask is expected to have the output dimensions. I.e., the mask
* applies to the already rotated image, not the capture image. Thus, use
* width and height from imgs.
*/
cnt->imgs.mask = get_pgm(picture, cnt->imgs.width, cnt->imgs.height);
myfclose(picture);
} else {
MOTION_LOG(ERR, TYPE_ALL, SHOW_ERRNO, "%s: Error opening mask file %s",
cnt->conf.mask_file);
/*
* Try to write an empty mask file to make it easier
* for the user to edit it
*/
put_fixed_mask(cnt, cnt->conf.mask_file);
}
if (!cnt->imgs.mask) {
MOTION_LOG(ERR, TYPE_ALL, NO_ERRNO, "%s: Failed to read mask image. Mask feature disabled.");
} else {
MOTION_LOG(INF, TYPE_ALL, NO_ERRNO, "%s: Maskfile \"%s\" loaded.",
cnt->conf.mask_file);
}
} else {
cnt->imgs.mask = NULL;
}
/* Always initialize smart_mask - someone could turn it on later... */
memset(cnt->imgs.smartmask, 0, cnt->imgs.motionsize);
memset(cnt->imgs.smartmask_final, 255, cnt->imgs.motionsize);
memset(cnt->imgs.smartmask_buffer, 0, cnt->imgs.motionsize*sizeof(cnt->imgs.smartmask_buffer));
/* Set noise level */
cnt->noise = cnt->conf.noise;
/* Set threshold value */
cnt->threshold = cnt->conf.max_changes;
/* Initialize stream server if stream port is specified to not 0 */
if (cnt->conf.stream_port) {
if (stream_init(cnt) == -1) {
MOTION_LOG(ERR, TYPE_ALL, SHOW_ERRNO, "%s: Problem enabling motion-stream server in port %d",
cnt->conf.stream_port);
cnt->finish = 1;
} else {
MOTION_LOG(NTC, TYPE_ALL, NO_ERRNO, "%s: Started motion-stream server in port %d auth %s",
cnt->conf.stream_port, cnt->conf.stream_auth_method ? "Enabled":"Disabled");
}
}
/* Prevent first few frames from triggering motion... */
cnt->moved = 8;
/* 2 sec startup delay so FPS is calculated correct */
cnt->startup_frames = cnt->conf.frame_limit * 2;
return 0;
}
/**
* motion_cleanup
*
* This routine is called from motion_loop when thread ends to
* cleanup all memory etc. that motion_init did.
*
* Parameters:
*
* cnt Pointer to the motion context structure
*
* Returns: nothing
*/
static void motion_cleanup(struct context *cnt)
{
/* Stop stream */
event(cnt, EVENT_STOP, NULL, NULL, NULL, NULL);
if (cnt->video_dev >= 0) {
MOTION_LOG(INF, TYPE_ALL, NO_ERRNO, "%s: Calling vid_close() from motion_cleanup");
vid_close(cnt);
}
if (cnt->imgs.out) {
free(cnt->imgs.out);
cnt->imgs.out = NULL;
}
if (cnt->imgs.ref) {
free(cnt->imgs.ref);
cnt->imgs.ref = NULL;
}
if (cnt->imgs.ref_dyn) {
free(cnt->imgs.ref_dyn);
cnt->imgs.ref_dyn = NULL;
}
if (cnt->imgs.image_virgin) {
free(cnt->imgs.image_virgin);
cnt->imgs.image_virgin = NULL;
}
if (cnt->imgs.labels) {
free(cnt->imgs.labels);
cnt->imgs.labels = NULL;
}
if (cnt->imgs.labelsize) {
free(cnt->imgs.labelsize);
cnt->imgs.labelsize = NULL;
}
if (cnt->imgs.smartmask) {
free(cnt->imgs.smartmask);
cnt->imgs.smartmask = NULL;
}
if (cnt->imgs.smartmask_final) {
free(cnt->imgs.smartmask_final);
cnt->imgs.smartmask_final = NULL;
}
if (cnt->imgs.smartmask_buffer) {
free(cnt->imgs.smartmask_buffer);
cnt->imgs.smartmask_buffer = NULL;
}
if (cnt->imgs.common_buffer) {
free(cnt->imgs.common_buffer);
cnt->imgs.common_buffer = NULL;
}
if (cnt->imgs.preview_image.image) {
free(cnt->imgs.preview_image.image);
cnt->imgs.preview_image.image = NULL;
}
image_ring_destroy(cnt); /* Cleanup the precapture ring buffer */
rotate_deinit(cnt); /* cleanup image rotation data */
if (cnt->pipe != -1) {
close(cnt->pipe);
cnt->pipe = -1;
}
if (cnt->mpipe != -1) {
close(cnt->mpipe);
cnt->mpipe = -1;
}
/* Cleanup the current time structure */
if (cnt->currenttime_tm) {
free(cnt->currenttime_tm);
cnt->currenttime_tm = NULL;
}
/* Cleanup the event time structure */
if (cnt->eventtime_tm) {
free(cnt->eventtime_tm);
cnt->eventtime_tm = NULL;
}
if (cnt->conf.database_type) {
}
/* Cleanup the previmg buffer */
if (cnt->previmg) {
free(cnt->previmg);
cnt->previmg = NULL;
}
}
/**
* motion_loop
*
* Thread function for the motion handling threads.
*
*/
static void *motion_loop(void *arg)
{
struct context *cnt = arg;
int i, j, z = 0;
time_t lastframetime = 0;
int frame_buffer_size;
unsigned int rate_limit = 0;
int area_once = 0;
int area_minx[9], area_miny[9], area_maxx[9], area_maxy[9];
int smartmask_ratio = 0;
int smartmask_count = 20;
unsigned int smartmask_lastrate = 0;
int olddiffs = 0;
int previous_diffs = 0, previous_location_x = 0, previous_location_y = 0;
unsigned int text_size_factor;
unsigned int passflag = 0;