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update publisers

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lxsang
2020-12-28 21:39:55 +01:00
parent 5b6db3eb75
commit 1f2ef8db4d
3 changed files with 160 additions and 20 deletions
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103
v4l2cam/v4l2cam.c
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@@ -13,6 +13,7 @@
#include <stdio.h>
#include <jpeglib.h>
#include <sys/ioctl.h>
#include <sys/timerfd.h>
#include "../tunnel.h"
@@ -27,6 +28,7 @@ typedef struct
uint8_t jpeg_quality;
uint8_t *raw_buffer;
int fd;
int timerfd;
int raw_size;
char dev_name[DEV_SIZE];
uint8_t queued;
@@ -313,6 +315,43 @@ static int cam_cleanup(cam_setting_t *opts, int close_fd)
{
(void)close(opts->fd);
}
if (close_fd && opts->timerfd > 0)
{
(void)close(opts->timerfd);
}
return 0;
}
static int cam_init_timer(cam_setting_t* opts)
{
long period = 0;
if(opts->timerfd != -1)
{
(void) close(opts->timerfd);
}
opts->timerfd = timerfd_create(CLOCK_MONOTONIC, TFD_CLOEXEC);
if (opts->timerfd == -1)
{
M_ERROR(MODULE_NAME, "Unable to create timerfd: %s", strerror(errno));
return -1;
}
else
{
period = (long) (1e9 / opts->fps);
M_LOG(MODULE_NAME, "Frame period set to %lu", period);
struct itimerspec ch_period =
{
.it_interval = {.tv_sec = 0, .tv_nsec = period},
.it_value = {.tv_sec = 0, .tv_nsec = period}, /* first wake-up = interval */
};
if (timerfd_settime(opts->timerfd, 0 /* no flags */, &ch_period, NULL) == -1)
{
M_ERROR(MODULE_NAME, "Unable to set framerate period: %s", strerror(errno));
(void)close(opts->timerfd);
opts->timerfd = -1;
return -1;
}
}
return 0;
}
static int cam_apply_setting(cam_setting_t *opts)
@@ -349,6 +388,8 @@ static int cam_apply_setting(cam_setting_t *opts)
M_ERROR(MODULE_NAME, "Unable to query buffer");
return -1;
}
(void) cam_init_timer(opts);
return 0;
}
@@ -379,6 +420,7 @@ int main(const int argc, const char **argv)
tunnel_msg_t msg;
int status;
fd_set fd_in;
uint64_t expirations_count;
void *fargv[2];
unsigned int offset = 0;
if (argc != 4)
@@ -404,7 +446,7 @@ int main(const int argc, const char **argv)
{
exit(1);
}
sock = open_unix_socket((char*)argv[1]);
sock = open_unix_socket((char *)argv[1]);
if (sock == -1)
{
M_ERROR(MODULE_NAME, "Unable to open the hotline: %s", argv[1]);
@@ -471,6 +513,12 @@ int main(const int argc, const char **argv)
video_setting.queued = 1;
}
}
if(clients == NULL && video_setting.timerfd != -1)
{
(void) close(video_setting.timerfd);
video_setting.timerfd = -1;
}
status = select(maxfd + 1, &fd_in, NULL, NULL, NULL);
switch (status)
{
@@ -494,7 +542,23 @@ int main(const int argc, const char **argv)
{
case CHANNEL_SUBSCRIBE:
M_LOG(MODULE_NAME, "Client %d subscribes to the chanel", msg.header.client_id);
if(clients == NULL)
{
(void) cam_init_timer(&video_setting);
}
clients = bst_insert(clients, msg.header.client_id, NULL);
// send back the ctl message
msg.header.type = CHANNEL_CTRL;
msg.header.size = 6;
msg.data = (uint8_t *)buff;
(void)memcpy(buff, &video_setting.width, sizeof(video_setting.width));
(void)memcpy(buff + sizeof(video_setting.width), &video_setting.height, sizeof(video_setting.height));
buff[sizeof(video_setting.width) + sizeof(video_setting.height)] = video_setting.fps;
buff[sizeof(video_setting.width) + sizeof(video_setting.height) + 1] = video_setting.jpeg_quality;
if (msg_write(sock, &msg) == -1)
{
running = 0;
}
break;
case CHANNEL_UNSUBSCRIBE:
@@ -515,10 +579,10 @@ int main(const int argc, const char **argv)
offset++;
(void)memcpy(&video_setting.jpeg_quality, msg.data + offset, 1);
M_LOG(MODULE_NAME, "Client request width: %d, height: %d, FPS: %d, JPEG quality: %d",
video_setting.width,
video_setting.height,
video_setting.fps,
video_setting.jpeg_quality);
video_setting.width,
video_setting.height,
video_setting.fps,
video_setting.jpeg_quality);
if (cam_apply_setting(&video_setting) == -1)
{
M_ERROR(MODULE_NAME, "Unable to apply video setting");
@@ -532,6 +596,20 @@ int main(const int argc, const char **argv)
{
running = 0;
}
else
{
// send back the ctl message
msg.header.type = CHANNEL_CTRL;
msg.header.size = 6;
msg.data = (uint8_t *)buff;
(void)memcpy(buff, &video_setting.width, sizeof(video_setting.width));
(void)memcpy(buff + sizeof(video_setting.width), &video_setting.height, sizeof(video_setting.height));
buff[sizeof(video_setting.width) + sizeof(video_setting.height)] = video_setting.fps;
buff[sizeof(video_setting.width) + sizeof(video_setting.height) + 1] = video_setting.jpeg_quality;
fargv[0] = (void *)&msg;
fargv[1] = (void *)&sock;
bst_for_each(clients, send_data, fargv, 2);
}
}
}
else
@@ -553,6 +631,21 @@ int main(const int argc, const char **argv)
{
running = 0;
}
else
{
// check timeout
if(video_setting.timerfd > 0)
{
if(read(video_setting.timerfd, &expirations_count, sizeof(expirations_count)) != (int)sizeof(expirations_count))
{
M_ERROR(MODULE_NAME, "Unable to read timer: %s", strerror(errno));
}
else if (expirations_count > 1u)
{
M_ERROR(MODULE_NAME, "LOOP OVERFLOW COUNT: %llu", expirations_count);
}
}
}
}
else
{