int main(int argc, char *argv[])
{
dc1394_t * d;
dc1394camera_list_t * list;
dc1394camera_t *camera;
dc1394error_t err;
d = dc1394_new ();
if (!d)
return 1;
int cam=0;
int num=-1;
int chan;
unsigned int val;
do
{
err=dc1394_camera_enumerate (d, &list);
DC1394_ERR_RTN(err,"Failed to enumerate cameras");
if (list->num == 0) {
dc1394_log_error("No cameras found");
return 1;
}
else
{
num=list->num;
}
printf("Camera %d\n",cam);
camera = dc1394_camera_new (d, list->ids[cam].guid);
if (!camera) {
dc1394_log_error("Failed to initialize camera with guid %llx", list->ids[cam].guid);
return 1;
}
dc1394_camera_free_list (list);
printf("Using camera with GUID %"PRIx64"\n", camera->guid);
printf ("Reseting bus...\n");
if (dc1394_reset_bus (camera) != DC1394_SUCCESS)
printf ("Warning: reset reported error\n");
dc1394_capture_stop(camera);
dc1394_iso_release_all(camera);
if ( dc1394_video_get_bandwidth_usage(camera,&val) == DC1394_SUCCESS
&& dc1394_iso_release_bandwidth(camera,val) == DC1394_SUCCESS)
{
printf("Freed %d Bandwidth\n",val);
}
if ( dc1394_video_get_iso_channel(camera,&val) == DC1394_SUCCESS
&& dc1394_iso_release_channel(camera,val) == DC1394_SUCCESS)
{
printf("Freed ISO %d\n",val);
}
dc1394_video_set_transmission(camera, DC1394_OFF);
//dc1394_iso_release_bandwidth(camera, 10000000);
/*dc1394_iso_release_bandwidth(camera, INT_MAX);
for(chan=0;chan<64;chan++)
{
dc1394_iso_release_channel(camera,chan);
}*/
dc1394_camera_free (camera);
cam++;
}
while(cam<num);
dc1394_free (d);
return 0;
}
static gboolean
gst_dc1394_open_cam_with_best_caps (GstDc1394 * src)
{
dc1394camera_list_t *cameras = NULL;
gint err = 0;
int framerateconst;
GST_LOG_OBJECT (src, "Opening the camera!!!");
if (dc1394_camera_enumerate (src->dc1394, &cameras) != DC1394_SUCCESS) {
GST_ELEMENT_ERROR (src, RESOURCE, FAILED, ("Can't find cameras"),
("Can't find cameras"));
goto error;
}
GST_LOG_OBJECT (src, "Found %d cameras", cameras->num);
if (src->camnum > (cameras->num - 1)) {
GST_ELEMENT_ERROR (src, RESOURCE, FAILED, ("Invalid camera number"),
("Invalid camera number"));
goto error;
}
GST_LOG_OBJECT (src, "Opening camera : %d", src->camnum);
src->camera =
dc1394_camera_new_unit (src->dc1394, cameras->ids[src->camnum].guid,
cameras->ids[src->camnum].unit);
dc1394_camera_free_list (cameras);
cameras = NULL;
// figure out mode
framerateconst = gst_dc1394_framerate_frac_to_const (src->rate_numerator,
src->rate_denominator);
GST_LOG_OBJECT (src, "The dma buffer queue size is %d buffers",
src->bufsize);
switch (src->iso_speed) {
case 100:
err = dc1394_video_set_iso_speed (src->camera, DC1394_ISO_SPEED_100);
break;
case 200:
err = dc1394_video_set_iso_speed (src->camera, DC1394_ISO_SPEED_200);
break;
case 400:
err = dc1394_video_set_iso_speed (src->camera, DC1394_ISO_SPEED_400);
break;
case 800:
if (src->camera->bmode_capable > 0) {
dc1394_video_set_operation_mode (src->camera,
DC1394_OPERATION_MODE_1394B);
err = dc1394_video_set_iso_speed (src->camera, DC1394_ISO_SPEED_800);
}
break;
case 1600:
if (src->camera->bmode_capable > 0) {
dc1394_video_set_operation_mode (src->camera,
DC1394_OPERATION_MODE_1394B);
err = dc1394_video_set_iso_speed (src->camera, DC1394_ISO_SPEED_1600);
}
break;
case 3200:
if (src->camera->bmode_capable > 0) {
dc1394_video_set_operation_mode (src->camera,
DC1394_OPERATION_MODE_1394B);
err = dc1394_video_set_iso_speed (src->camera, DC1394_ISO_SPEED_3200);
}
break;
default:
GST_ELEMENT_ERROR (src, RESOURCE, FAILED, ("Invalid ISO speed"),
("Invalid ISO speed"));
goto error;
break;
}
if (err != DC1394_SUCCESS) {
GST_ELEMENT_ERROR (src, RESOURCE, FAILED, ("Could not set ISO speed"),
("Could not set ISO speed"));
goto error;
}
GST_LOG_OBJECT (src, "Setting mode : %d", src->vmode);
err = dc1394_video_set_mode (src->camera, src->vmode);
if (err != DC1394_SUCCESS) {
GST_ELEMENT_ERROR (src, RESOURCE, FAILED, ("Could not set video mode %d",
src->vmode), ("Could not set video mode %d", src->vmode));
goto error;
}
GST_LOG_OBJECT (src, "Setting framerate : %d", framerateconst);
dc1394_video_set_framerate (src->camera, framerateconst);
if (err != DC1394_SUCCESS) {
GST_ELEMENT_ERROR (src, RESOURCE, FAILED, ("Could not set framerate to %d",
framerateconst), ("Could not set framerate to %d", framerateconst));
goto error;
}
// set any format-7 parameters if this is a format-7 mode
if (src->vmode >= DC1394_VIDEO_MODE_FORMAT7_MIN &&
src->vmode <= DC1394_VIDEO_MODE_FORMAT7_MAX) {
// the big thing we care about right now is frame size
err = dc1394_format7_set_image_size (src->camera, src->vmode,
src->width, src->height);
if (err != DC1394_SUCCESS) {
GST_ELEMENT_ERROR (src, RESOURCE, FAILED,
("Could not set format 7 image size to %d x %d", src->width,
src->height), ("Could not set format 7 image size to %d x %d",
src->width, src->height));
goto error;
}
}
err = dc1394_capture_setup (src->camera, src->bufsize,
DC1394_CAPTURE_FLAGS_DEFAULT);
if (err != DC1394_SUCCESS) {
GST_ELEMENT_ERROR (src, RESOURCE, FAILED, ("Error setting capture mode"),
("Error setting capture mode"));
}
if (err != DC1394_SUCCESS) {
if (err == DC1394_NO_BANDWIDTH) {
GST_LOG_OBJECT (src, "Capture setup_dma failed."
"Trying to cleanup the iso_channels_and_bandwidth and retrying");
// try to cleanup the bandwidth and retry
err = dc1394_iso_release_all (src->camera);
if (err != DC1394_SUCCESS) {
GST_ELEMENT_ERROR (src, RESOURCE, FAILED,
("Could not cleanup bandwidth"), ("Could not cleanup bandwidth"));
goto error;
} else {
err =
dc1394_capture_setup (src->camera, src->bufsize,
DC1394_CAPTURE_FLAGS_DEFAULT);
if (err != DC1394_SUCCESS) {
GST_ELEMENT_ERROR (src, RESOURCE, FAILED,
("unable to setup camera error %d", err),
("unable to setup camera error %d", err));
goto error;
}
}
} else {
GST_ELEMENT_ERROR (src, RESOURCE, FAILED,
("unable to setup camera error %d", err),
("unable to setup camera error %d", err));
goto error;
}
}
return TRUE;
error:
if (src->camera) {
dc1394_camera_free (src->camera);
src->camera = NULL;
}
return FALSE;
}
