diff --git a/include/ndk/NdkMediaCodec.h b/include/ndk/NdkMediaCodec.h
index 4f6a1ef..034cb35 100644
--- a/include/ndk/NdkMediaCodec.h
+++ b/include/ndk/NdkMediaCodec.h
@@ -170,6 +170,11 @@
     AMEDIACODECRYPTOINFO_MODE_AES_CTR = 1
 } cryptoinfo_mode_t;
 
+typedef struct {
+    int32_t encryptBlocks;
+    int32_t skipBlocks;
+} cryptoinfo_pattern_t;
+
 /**
  * Create an AMediaCodecCryptoInfo from scratch. Use this if you need to use custom
  * crypto info, rather than one obtained from AMediaExtractor.
@@ -199,6 +204,13 @@
 media_status_t AMediaCodecCryptoInfo_delete(AMediaCodecCryptoInfo*);
 
 /**
+ * Set the crypto pattern on an AMediaCryptoInfo object
+ */
+void AMediaCodecCryptoInfo_setPattern(
+        AMediaCodecCryptoInfo *info,
+        cryptoinfo_pattern_t *pattern);
+
+/**
  * The number of subsamples that make up the buffer's contents.
  */
 size_t AMediaCodecCryptoInfo_getNumSubSamples(AMediaCodecCryptoInfo*);