diff --git a/src/context.c b/src/context.c
index 4785399..47bfc55 100644
--- a/src/context.c
+++ b/src/context.c
@@ -142,11 +142,17 @@ VAStatus RequestCreateContext(VADriverContextP context, VAConfigID config_id,
 			if (found)
 				video_format = video_format_find(V4L2_PIX_FMT_NV12);
 		} else {
-			found = v4l2_find_format(driver_data->video_fd,
-						 V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE,
-						 V4L2_PIX_FMT_NV15);
-			if (found)
-				video_format = video_format_find(V4L2_PIX_FMT_NV15);
+			/*
+			 * iter39 fresnel fix: rkvdec only advertises NV15 in
+			 * VIDIOC_ENUM_FMT(CAPTURE) AFTER S_FMT(OUTPUT) +
+			 * S_EXT_CTRLS(SPS) resolve image_fmt to 420_10BIT.
+			 * Before that, only NV12 is enumerated. Pre-finding
+			 * NV15 always fails. Skip the find_format check and
+			 * directly map to our NV15 video_format entry; the
+			 * later S_FMT(CAPTURE) commits the actual NV15 mode
+			 * once the synthetic SPS sets bit_depth_luma_minus8=2.
+			 */
+			video_format = video_format_find(V4L2_PIX_FMT_NV15);
 		}
 
 		if (video_format == NULL) {