shared context and rename config filer

src/video.c

@@ -3,13 +3,10 @@
 #include <linux/videodev2.h>
 #include <log.h>
 #include <stdbool.h>
-#include <stdio.h>
 #include <stdlib.h>
 #include <sys/ioctl.h>
 #include <unistd.h>
 
-#include "config.h"
-#include "rand.h"
 #include "shared.h"
 #include "timer.h"
 #include "types.h"
@@ -270,14 +267,6 @@ static void create_image_buffer(VideoCapture *video_capture) {
   ioctl(video_capture->fd, VIDIOC_QBUF, &video_capture->buf);
 }
 
-static void create_shared_data(VideoCapture *video_capture) {
-  char name[256];
-
-  sprintf(name, "/" PACKAGE "_fps_%d", rand_uint(1000000));
-
-  video_capture->fps = shared_init_uint(name, 0);
-}
-
 static void close_stream(VideoCapture video_capture) {
   ioctl(video_capture.fd, VIDIOC_STREAMOFF, &buf_type);
 }
@@ -317,8 +306,6 @@ VideoCapture video_init(char *name, unsigned int preferred_height) {
 
   create_image_buffer(&video_capture);
 
-  create_shared_data(&video_capture);
-
   return video_capture;
 }
 
@@ -340,7 +327,8 @@ static bool read_video(VideoCapture *video_capture) {
   return true;
 }
 
-void video_background_read(VideoCapture *video_capture, SharedBool *stop) {
+void video_background_read(VideoCapture *video_capture, SharedContext *context,
+                           int input_index) {
   pid_t pid;
   Timer timer;
   double fps;
@@ -357,16 +345,16 @@ void video_background_read(VideoCapture *video_capture, SharedBool *stop) {
            pid);
   timer = timer_init(30);
 
-  while (!stop->value && read_video(video_capture)) {
+  while (!context->stop && read_video(video_capture)) {
     // repeat infinitely
     if (timer_inc(&timer)) {
       fps = timer_reset(&timer);
 
-      video_capture->fps->value = (unsigned int)round(fps);
+      context->input_fps[input_index] = (unsigned int)round(fps);
       log_trace("(%s) %.2ffps", video_capture->name, fps);
     }
   }
-  if (stop->value) {
+  if (context->stop) {
     log_info("%s background acquisition stopped by main thread (pid: %d)",
              video_capture->name, pid);
   } else {
@@ -374,13 +362,12 @@ void video_background_read(VideoCapture *video_capture, SharedBool *stop) {
              video_capture->name, pid);
   }
   window_terminate();
-  exit(stop->value ? EXIT_SUCCESS : EXIT_FAILURE);
+  exit(context->stop ? EXIT_SUCCESS : EXIT_FAILURE);
 }
 
 void video_free(VideoCapture video_capture) {
   if (!video_capture.error) {
     close_stream(video_capture);
-    shared_close_uint(video_capture.fps);
   }
   if (video_capture.exp_fd != -1) {
     close(video_capture.exp_fd);