diff --git a/media/libmediatranscoding/transcoder/NdkCommon.cpp b/media/libmediatranscoding/transcoder/NdkCommon.cpp
index f5c9594..fb909b2 100644
--- a/media/libmediatranscoding/transcoder/NdkCommon.cpp
+++ b/media/libmediatranscoding/transcoder/NdkCommon.cpp
@@ -90,4 +90,29 @@
 DEFINE_SET_DEFAULT_FORMAT_VALUE_FUNC(float, Float);
 DEFINE_SET_DEFAULT_FORMAT_VALUE_FUNC(int32_t, Int32);
 
-}  // namespace AMediaFormatUtils
\ No newline at end of file
+// Determines whether a track format describes HDR video content or not. The
+// logic is based on isHdr() in libstagefright/Utils.cpp.
+bool VideoIsHdr(AMediaFormat* format) {
+    // If VUI signals HDR content, this internal flag is set by the extractor.
+    int32_t isHdr;
+    if (AMediaFormat_getInt32(format, "android._is-hdr", &isHdr)) {
+        return isHdr;
+    }
+
+    // If container supplied HDR static info without transfer set, assume HDR.
+    const char* hdrInfo;
+    int32_t transfer;
+    if ((AMediaFormat_getString(format, AMEDIAFORMAT_KEY_HDR_STATIC_INFO, &hdrInfo) ||
+         AMediaFormat_getString(format, "hdr10-plus-info", &hdrInfo)) &&
+        !AMediaFormat_getInt32(format, AMEDIAFORMAT_KEY_COLOR_TRANSFER, &transfer)) {
+        return true;
+    }
+
+    // Otherwise, check if an HDR transfer function is set.
+    if (AMediaFormat_getInt32(format, AMEDIAFORMAT_KEY_COLOR_TRANSFER, &transfer)) {
+        return transfer == COLOR_TRANSFER_ST2084 || transfer == COLOR_TRANSFER_HLG;
+    }
+
+    return false;
+}
+}  // namespace AMediaFormatUtils
diff --git a/media/libmediatranscoding/transcoder/VideoTrackTranscoder.cpp b/media/libmediatranscoding/transcoder/VideoTrackTranscoder.cpp
index 04a513e..acf5f6c 100644
--- a/media/libmediatranscoding/transcoder/VideoTrackTranscoder.cpp
+++ b/media/libmediatranscoding/transcoder/VideoTrackTranscoder.cpp
@@ -51,32 +51,6 @@
 // Default frame rate.
 static constexpr int32_t kDefaultFrameRate = 30;
 
-// Determines whether a track format describes HDR video content or not. The
-// logic is based on isHdr() in libstagefright/Utils.cpp.
-static bool isHdr(AMediaFormat* format) {
-    // If VUI signals HDR content, this internal flag is set by the extractor.
-    int32_t isHdr;
-    if (AMediaFormat_getInt32(format, "android._is-hdr", &isHdr)) {
-        return isHdr;
-    }
-
-    // If container supplied HDR static info without transfer set, assume HDR.
-    const char* hdrInfo;
-    int32_t transfer;
-    if ((AMediaFormat_getString(format, AMEDIAFORMAT_KEY_HDR_STATIC_INFO, &hdrInfo) ||
-         AMediaFormat_getString(format, "hdr10-plus-info", &hdrInfo)) &&
-        !AMediaFormat_getInt32(format, AMEDIAFORMAT_KEY_COLOR_TRANSFER, &transfer)) {
-        return true;
-    }
-
-    // Otherwise, check if an HDR transfer function is set.
-    if (AMediaFormat_getInt32(format, AMEDIAFORMAT_KEY_COLOR_TRANSFER, &transfer)) {
-        return transfer == COLOR_TRANSFER_ST2084 || transfer == COLOR_TRANSFER_HLG;
-    }
-
-    return false;
-}
-
 template <typename T>
 void VideoTrackTranscoder::BlockingQueue<T>::push(T const& value, bool front) {
     {
@@ -347,7 +321,7 @@
     }
 
     // Request decoder to convert HDR content to SDR.
-    const bool sourceIsHdr = isHdr(mSourceFormat.get());
+    const bool sourceIsHdr = VideoIsHdr(mSourceFormat.get());
     if (sourceIsHdr) {
         AMediaFormat_setInt32(decoderFormat.get(),
                               TBD_AMEDIACODEC_PARAMETER_KEY_COLOR_TRANSFER_REQUEST,
diff --git a/media/libmediatranscoding/transcoder/include/media/NdkCommon.h b/media/libmediatranscoding/transcoder/include/media/NdkCommon.h
index cc3399a..a7ed6a7 100644
--- a/media/libmediatranscoding/transcoder/include/media/NdkCommon.h
+++ b/media/libmediatranscoding/transcoder/include/media/NdkCommon.h
@@ -88,5 +88,7 @@
 bool SetDefaultFormatValueFloat(const char* key, AMediaFormat* format, float value);
 bool SetDefaultFormatValueInt32(const char* key, AMediaFormat* format, int32_t value);
 
+bool VideoIsHdr(AMediaFormat* format);
+
 }  // namespace AMediaFormatUtils
 #endif  // ANDROID_MEDIA_TRANSCODING_NDK_COMMON_H