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path: root/v4l2-apps/util/v4l2-ctl.cpp
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Diffstat (limited to 'v4l2-apps/util/v4l2-ctl.cpp')
-rw-r--r--v4l2-apps/util/v4l2-ctl.cpp9
1 files changed, 5 insertions, 4 deletions
diff --git a/v4l2-apps/util/v4l2-ctl.cpp b/v4l2-apps/util/v4l2-ctl.cpp
index 920fbd1a3..41946978a 100644
--- a/v4l2-apps/util/v4l2-ctl.cpp
+++ b/v4l2-apps/util/v4l2-ctl.cpp
@@ -1148,7 +1148,7 @@ int main(int argc, char **argv)
/* command args */
int ch;
- char *device = strdup("/dev/video0"); /* -d device */
+ const char *device = "/dev/video0"; /* -d device */
struct v4l2_format vfmt; /* set_format/get_format for video */
struct v4l2_format vfmt_out; /* set_format/get_format video output */
struct v4l2_format vbi_fmt; /* set_format/get_format for sliced VBI */
@@ -1224,11 +1224,13 @@ int main(int argc, char **argv)
usage();
return 0;
case OptSetDevice:
- device = strdup(optarg);
+ device = optarg;
if (device[0] >= '0' && device[0] <= '9' && device[1] == 0) {
+ static char newdev[20];
char dev = device[0];
- sprintf(device, "/dev/video%c", dev);
+ sprintf(newdev, "/dev/video%c", dev);
+ device = newdev;
}
break;
case OptSetVideoFormat:
@@ -1496,7 +1498,6 @@ int main(int argc, char **argv)
strerror(errno));
exit(1);
}
- free(device);
doioctl(fd, VIDIOC_QUERYCAP, &vcap, "VIDIOC_QUERYCAP");
capabilities = vcap.capabilities;