5beef42922
With GST_SEEK_FLAG_SNAP_AFTER present, the previous version would adjust seek time based on the keyframe farthest away from desired_time. This was incorrect, because we always want the *earliest* suitable keyframe to seek to, not the last one. With this fix, in case of the SNAP_AFTER, we now look for the closest keyframe that can be found after desired_time. Behaviour for SNAP_BEFORE should remain unchanged. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4183>