int main(int argc, char *argv[]){
Camera *camera;
GPContext *context = gp_context_new();
int retval;
CameraEventType evttype;
void *evtdata;
CameraFile *file;
gp_camera_new(&camera);
retval = gp_camera_init(camera, context);
if(retval != GP_OK)
{
printf("Error: %s\n", gp_result_as_string(retval));
return 1;
}
do {
retval = gp_camera_wait_for_event (camera, 10, &evttype, &evtdata, context);
} while ((retval == GP_OK) && (evttype != GP_EVENT_TIMEOUT));
retval = gp_file_new(&file);
if (retval != GP_OK) {
printf("gp_file_new: %d\n", retval);
return 1;
}
/*retval = gp_camera_capture_preview(camera, file, context); */
if (retval != GP_OK) {
printf("gp_camera_capture_preview: %d\n", retval);
return 1;
}
gp_file_free (file);
if(argc == 1)
{
retval = camera_auto_focus(camera, context);
if(retval != GP_OK) {
printf("Error: %s\n", gp_result_as_string(retval));
return 1;
}
}
else if(argc == 2)
{
int value = atoi(argv[1]);
retval = camera_manual_focus(camera, value, context);
if(retval != GP_OK) {
printf("Error: %s\n", gp_result_as_string(retval));
return 1;
}
}
do {
retval = gp_camera_wait_for_event (camera, 10, &evttype, &evtdata, context);
} while ((retval == GP_OK) && (evttype != GP_EVENT_TIMEOUT));
gp_camera_exit(camera, context);
return 0;
}
int
main(int argc, char **argv) {
Camera *canon;
int i, retval;
GPContext *canoncontext = sample_create_context();
gp_log_add_func(GP_LOG_ERROR, errordumper, 0);
gp_camera_new(&canon);
/* When I set GP_LOG_DEBUG instead of GP_LOG_ERROR above, I noticed that the
* init function seems to traverse the entire filesystem on the camera. This
* is partly why it takes so long.
* (Marcus: the ptp2 driver does this by default currently.)
*/
printf("Camera init. Takes about 10 seconds.\n");
retval = gp_camera_init(canon, canoncontext);
if (retval != GP_OK) {
printf(" Retval: %d\n", retval);
exit (1);
}
canon_enable_capture(canon, TRUE, canoncontext);
retval = camera_eosviewfinder(canon,canoncontext,1);
if (retval != GP_OK) {
fprintf(stderr,"camera_eosviewfinder(1): %d\n", retval);
exit(1);
}
/*set_capturetarget(canon, canoncontext);*/
printf("Taking 100 previews and saving them to snapshot-XXX.jpg ...\n");
for (i=0;i<100;i++) {
CameraFile *file;
char output_file[32];
fprintf(stderr,"preview %d\n", i);
retval = gp_file_new(&file);
if (retval != GP_OK) {
fprintf(stderr,"gp_file_new: %d\n", retval);
exit(1);
}
/* autofocus every 10 shots */
if (i%10 == 9) {
camera_auto_focus (canon, canoncontext, 1);
/* FIXME: wait a bit and/or poll events ? */
camera_auto_focus (canon, canoncontext, 0);
} else {
camera_manual_focus (canon, (i/10-5)/2, canoncontext);
}
#if 0 /* testcase for EOS zooming */
{
char buf[20];
if (i<10) set_config_value_string (canon, "eoszoom", "5", canoncontext);
sprintf(buf,"%d,%d",(i&0x1f)*64,(i>>5)*64);
fprintf(stderr, "%d - %s\n", i, buf);
set_config_value_string (canon, "eoszoomposition", buf, canoncontext);
}
#endif
retval = gp_camera_capture_preview(canon, file, canoncontext);
if (retval != GP_OK) {
fprintf(stderr,"gp_camera_capture_preview(%d): %d\n", i, retval);
exit(1);
}
sprintf(output_file, "snapshot-%03d.jpg", i);
retval = gp_file_save(file, output_file);
if (retval != GP_OK) {
fprintf(stderr,"gp_camera_capture_preview(%d): %d\n", i, retval);
exit(1);
}
gp_file_unref(file);
/*
sprintf(output_file, "image-%03d.jpg", i);
capture_to_file(canon, canoncontext, output_file);
*/
}
retval = camera_eosviewfinder(canon,canoncontext,0);
if (retval != GP_OK) {
fprintf(stderr,"camera_eosviewfinder(0): %d\n", retval);
exit(1);
}
sleep(10);
gp_camera_exit(canon, canoncontext);
return 0;
}
