v4l2object: Fixed incorrect maximum value for int range

There are objects where maximum is not multiplication of the step,
e.g. there was a combination where max was 65535 with step 2.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7961>

diff --git a/subprojects/gst-plugins-good/sys/v4l2/gstv4l2object.c b/subprojects/gst-plugins-good/sys/v4l2/gstv4l2object.c
index 04b7b8ce1d6d84d3773dae1bf3d17beb5b9a17ca..ef9c0fcc8376d03e3ec50737042a120c5b801327 100644 (file)
--- a/subprojects/gst-plugins-good/sys/v4l2/gstv4l2object.c
+++ b/subprojects/gst-plugins-good/sys/v4l2/gstv4l2object.c
@@ -2890,7 +2890,11 @@ gst_v4l2_object_probe_caps_for_format (GstV4l2Object * v4l2object,
     maxw = MIN (size.stepwise.max_width, G_MAXINT);
     maxh = MIN (size.stepwise.max_height, G_MAXINT);
 
-    /* FIXME: check for sanity and that min/max are multiples of the steps */
+    /* ensure maxes are multiples of the steps */
+    maxw -= maxw % step_w;
+    maxh -= maxh % step_h;
+
+    /* FIXME: check for sanity */
 
     /* we only query details for the max width/height since it's likely the
      * most restricted if there are any resolution-dependent restrictions */