1.1 --- a/src/stereoplay.c	Sun Mar 06 20:31:18 2011 +0200
     1.2 +++ b/src/stereoplay.c	Sun Mar 06 20:53:30 2011 +0200
     1.3 @@ -28,12 +28,14 @@
     1.4  void keyb(unsigned char key, int x, int y);
     1.5  void skeyb(int key, int x, int y);
     1.6  void sig(int s);
     1.7 +void sig_decode(int s);
     1.8  void *shmalloc(size_t sz);
     1.9  
    1.10  struct video_file *vf;
    1.11  uint32_t *img;
    1.12  int vid_xsz, vid_ysz, win_xsz, win_ysz;
    1.13  unsigned int tex, sdr;
    1.14 +int decode_pid;
    1.15  int pfd[2], xsock = -1;
    1.16  int upd_frame;
    1.17  int fullscr;
    1.18 @@ -43,7 +45,6 @@
    1.19  
    1.20  int main(int argc, char **argv)
    1.21  {
    1.22 -	int pid;
    1.23  	char *stereo_combiner, *sdrfile;
    1.24  
    1.25  	atexit(cleanup);
    1.26 @@ -102,10 +103,10 @@
    1.27  
    1.28  	signal(SIGCHLD, sig);
    1.29  
    1.30 -	if((pid = fork()) == -1) {
    1.31 +	if((decode_pid = fork()) == -1) {
    1.32  		perror("failed to fork video decoding process");
    1.33  		return 1;
    1.34 -	} else if(pid) {
    1.35 +	} else if(decode_pid) {
    1.36  		close(pfd[1]);
    1.37  	} else {
    1.38  		close(pfd[0]);
    1.39 @@ -160,6 +161,8 @@
    1.40  	close(pfd[0]);
    1.41  }
    1.42  
    1.43 +static int paused;
    1.44 +
    1.45  /* decoding_loop() runs in a separate decoding process and communicates
    1.46   * with the parent process through the pfd[1] pipe.
    1.47   */
    1.48 @@ -171,6 +174,8 @@
    1.49  	unsigned long frame_nsec = vid_frame_interval(vf) * 1000;
    1.50  	printf("nanosecs per frame: %lu\n", frame_nsec);
    1.51  
    1.52 +	signal(SIGUSR1, sig_decode);
    1.53 +
    1.54  	gettimeofday(&tv0, 0);
    1.55  
    1.56  	while(vid_get_frame(vf, img) != -1) {
    1.57 @@ -182,6 +187,10 @@
    1.58  		ts.tv_nsec = frame_nsec - (tv.tv_usec - tv0.tv_usec) * 1000;
    1.59  		nanosleep(&ts, 0);
    1.60  
    1.61 +		while(paused) {
    1.62 +			pause();
    1.63 +		}
    1.64 +
    1.65  		gettimeofday(&tv0, 0);
    1.66  	}
    1.67  
    1.68 @@ -234,7 +243,7 @@
    1.69  		break;
    1.70  
    1.71  	case ' ':
    1.72 -		/* TODO pause/resume */
    1.73 +		kill(decode_pid, SIGUSR1);
    1.74  		break;
    1.75  
    1.76  	case 's':
    1.77 @@ -292,6 +301,15 @@
    1.78  	}
    1.79  }
    1.80  
    1.81 +void sig_decode(int s)
    1.82 +{
    1.83 +	signal(s, sig_decode);
    1.84 +
    1.85 +	if(s == SIGUSR1) {
    1.86 +		paused = !paused;
    1.87 +	}
    1.88 +}
    1.89 +
    1.90  void *shmalloc(size_t sz)
    1.91  {
    1.92  	int fd;