diff --git a/src/kvazaar.c b/src/kvazaar.c
index 59d24d05f..651f934ad 100644
--- a/src/kvazaar.c
+++ b/src/kvazaar.c
@@ -117,6 +117,7 @@ static void set_frame_info(kvz_frame_info *const info, const encoder_state_t *co
 {
   info->poc = state->global->poc,
   info->qp = state->global->QP;
+  info->nal_unit_type = state->global->pictype;
   info->slice_type = state->global->slicetype;
   kvz_encoder_get_ref_lists(state, info->ref_list_len, info->ref_list);
 }
diff --git a/src/kvazaar.h b/src/kvazaar.h
index a0939d24d..117918618 100644
--- a/src/kvazaar.h
+++ b/src/kvazaar.h
@@ -191,6 +191,70 @@ typedef struct kvz_picture {
   int64_t dts;             //!< \brief Decompression timestamp.
 } kvz_picture;
 
+/**
+ * \brief NAL unit type codes.
+ *
+ * These are the nal_unit_type codes from Table 7-1 ITU-T H.265 v1.0.
+ */
+enum kvz_nal_unit_type {
+
+  // Trailing pictures
+
+  KVZ_NAL_TRAIL_N = 0,
+  KVZ_NAL_TRAIL_R = 1,
+
+  KVZ_NAL_TSA_N = 2,
+  KVZ_NAL_TSA_R = 3,
+
+  KVZ_NAL_STSA_N = 4,
+  KVZ_NAL_STSA_R = 5,
+
+  // Leading pictures
+
+  KVZ_NAL_RADL_N = 6,
+  KVZ_NAL_RADL_R = 7,
+
+  KVZ_NAL_RASL_N = 8,
+  KVZ_NAL_RASL_R = 9,
+
+  // Reserved non-IRAP RSV_VCL_N/R 10-15
+
+  // Intra random access point pictures
+
+  KVZ_NAL_BLA_W_LP   = 16,
+  KVZ_NAL_BLA_W_RADL = 17,
+  KVZ_NAL_BLA_N_LP   = 18,
+
+  KVZ_NAL_IDR_W_RADL = 19,
+  KVZ_NAL_IDR_N_LP   = 20,
+
+  KVZ_NAL_CRA_NUT    = 21,
+
+  // Reserved IRAP
+
+  KVZ_NAL_RSV_IRAP_VCL22 = 22,
+  KVZ_NAL_RSV_IRAP_VCL23 = 23,
+
+  // Reserved non-IRAP RSV_VCL 24-32
+
+  // non-VCL
+
+  KVZ_NAL_VPS_NUT = 32,
+  KVZ_NAL_SPS_NUT = 33,
+  KVZ_NAL_PPS_NUT = 34,
+
+  KVZ_NAL_AUD_NUT = 35,
+  KVZ_NAL_EOS_NUT = 36,
+  KVZ_NAL_EOB_NUT = 37,
+  KVZ_NAL_FD_NUT  = 38,
+
+  KVZ_NAL_PREFIX_SEI_NUT = 39,
+  KVZ_NAL_SUFFIX_SEI_NUT = 40,
+
+  // Reserved RSV_NVCL 41-47
+  // Unspecified UNSPEC 48-63
+};
+
 enum kvz_slice_type {
   KVZ_SLICE_B = 0,
   KVZ_SLICE_P = 1,
@@ -212,6 +276,11 @@ typedef struct kvz_frame_info {
    */
   int8_t qp;
 
+  /**
+   * \brief Type of the NAL VCL unit
+   */
+  enum kvz_nal_unit_type nal_unit_type;
+
   /**
    * \brief Type of the slice
    */
diff --git a/src/nal.h b/src/nal.h
index d2e334a95..5f94645c8 100644
--- a/src/nal.h
+++ b/src/nal.h
@@ -32,74 +32,6 @@
 #include "image.h"
 #include "bitstream.h"
 
-
-//////////////////////////////////////////////////////////////////////////
-// TYPES
-
-/**
- * \brief NAL unit type codes.
- *
- * These are the nal_unit_type codes from Table 7-1 ITU-T H.265 v1.0.
- */
-enum kvz_nal_unit_type {
-
-  // Trailing pictures
-
-  KVZ_NAL_TRAIL_N = 0,
-  KVZ_NAL_TRAIL_R = 1,
-
-  KVZ_NAL_TSA_N = 2,
-  KVZ_NAL_TSA_R = 3,
-
-  KVZ_NAL_STSA_N = 4,
-  KVZ_NAL_STSA_R = 5,
-
-  // Leading pictures
-
-  KVZ_NAL_RADL_N = 6,
-  KVZ_NAL_RADL_R = 7,
-
-  KVZ_NAL_RASL_N = 8,
-  KVZ_NAL_RASL_R = 9,
-
-  // Reserved non-IRAP RSV_VCL_N/R 10-15
-
-  // Intra random access point pictures
-
-  KVZ_NAL_BLA_W_LP   = 16,
-  KVZ_NAL_BLA_W_RADL = 17,
-  KVZ_NAL_BLA_N_LP   = 18,
-
-  KVZ_NAL_IDR_W_RADL = 19,
-  KVZ_NAL_IDR_N_LP   = 20,
-
-  KVZ_NAL_CRA_NUT    = 21,
-
-  // Reserved IRAP
-
-  KVZ_NAL_RSV_IRAP_VCL22 = 22,
-  KVZ_NAL_RSV_IRAP_VCL23 = 23,
-
-  // Reserved non-IRAP RSV_VCL 24-32
-
-  // non-VCL
-
-  KVZ_NAL_VPS_NUT = 32,
-  KVZ_NAL_SPS_NUT = 33,
-  KVZ_NAL_PPS_NUT = 34,
-
-  KVZ_NAL_AUD_NUT = 35,
-  KVZ_NAL_EOS_NUT = 36,
-  KVZ_NAL_EOB_NUT = 37,
-  KVZ_NAL_FD_NUT  = 38,
-
-  KVZ_NAL_PREFIX_SEI_NUT = 39,
-  KVZ_NAL_SUFFIX_SEI_NUT = 40,
-
-  // Reserved RSV_NVCL 41-47
-  // Unspecified UNSPEC 48-63
-};
-
 #define SEI_HASH_MAX_LENGTH 4
 
 //////////////////////////////////////////////////////////////////////////