diff --git a/NVEncC_Options.en.md b/NVEncC_Options.en.md
index 9a886891..70eb8d44 100644
--- a/NVEncC_Options.en.md
+++ b/NVEncC_Options.en.md
@@ -123,7 +123,7 @@
   - [--dhdr10-info copy \[HEVC, AV1\]](#--dhdr10-info-copy-hevc-av1)
   - [--dolby-vision-profile \<string\> \[HEVC, AV1\]](#--dolby-vision-profile-string-hevc-av1)
   - [--dolby-vision-rpu \<string\> \[HEVC, AV1\]](#--dolby-vision-rpu-string-hevc-av1)
-  - [--dolby-vision-rpu copy \[HEVC\]](#--dolby-vision-rpu-copy-hevc)
+  - [--dolby-vision-rpu copy \[HEVC, AV1\]](#--dolby-vision-rpu-copy-hevc-av1)
   - [--aud \[H.264/HEVC\]](#--aud-h264hevc)
   - [--repeat-headers](#--repeat-headers)
   - [--pic-struct \[H.264/HEVC\]](#--pic-struct-h264hevc)
@@ -900,7 +900,7 @@ unset, copy, 5.0, 8.1, 8.2, 8.4
 ### --dolby-vision-rpu &lt;string&gt; [HEVC, AV1]
 Interleave Dolby Vision RPU metadata from the specified file into the output file. Recommended to be used with [--dolby-vision-profile](#--dolby-vision-profile-string).
 
-### --dolby-vision-rpu copy [HEVC]
+### --dolby-vision-rpu copy [HEVC, AV1]
 Interleave Dolby Vision RPU metadata copied from HEVC input file. Recommended to be used with [--dolby-vision-profile](#--dolby-vision-profile-string).
 
 Limitations for avhw reader: this option uses timestamps to reorder frames to decoded order to presentation order.
diff --git a/NVEncCore/rgy_bitstream.cpp b/NVEncCore/rgy_bitstream.cpp
index 3345d69c..490850a6 100644
--- a/NVEncCore/rgy_bitstream.cpp
+++ b/NVEncCore/rgy_bitstream.cpp
@@ -525,7 +525,7 @@ int DOVIRpu::get_next_rpu_nal(std::vector<uint8_t>& bytes, const int64_t id) {
     if (int ret = get_next_rpu(rpu, id); ret != 0) {
         return ret;
     }
-    //to_nal(rpu); // NALU_HEVC_UNSPECIFIEDの場合は不要
+    //to_nal(rpu); // get_next_rpuはすでにこの処理を実施済みのものを返す
     if (rpu.back() == 0x00) { // 最後が0x00の場合
         rpu.push_back(0x03);
     }
@@ -540,6 +540,38 @@ int DOVIRpu::get_next_rpu_nal(std::vector<uint8_t>& bytes, const int64_t id) {
     return 0;
 }
 
+int DOVIRpu::get_next_rpu_obu(std::vector<uint8_t>& bytes, const int64_t id) {
+    std::vector<uint8_t> tmp;
+    if (int ret = get_next_rpu(tmp, id); ret != 0) {
+        return ret;
+    }
+
+    auto rpu = unnal(tmp.data(), tmp.size());
+
+    static const uint8_t itut_t35_header[] = {
+        0xB5, // country code
+        0x00, 0x3B, // provider_code
+        0x00, 0x00, 0x08, 0x00 // provider_oriented_code
+    };
+    std::vector<uint8_t> buf;
+    if (rpu.size() > sizeof(itut_t35_header) && memcmp(rpu.data(), itut_t35_header, sizeof(itut_t35_header)) == 0) {
+        buf = rpu;
+    } else {
+        buf = make_vector<uint8_t>(itut_t35_header);
+        vector_cat(buf, rpu);
+    }
+    bytes = gen_av1_obu_metadata(AV1_METADATA_TYPE_ITUT_T35, buf);
+    return 0;
+}
+
+int DOVIRpu::get_next_rpu(std::vector<uint8_t>& bytes, const int64_t id, const RGY_CODEC codec) {
+    switch (codec) {
+    case RGY_CODEC_HEVC: return get_next_rpu_nal(bytes, id);
+    case RGY_CODEC_AV1: return get_next_rpu_obu(bytes, id);
+    default: return 1;
+    }
+}
+
 const DOVIProfile *getDOVIProfile(const int id) {
     static const std::array<DOVIProfile, 4> DOVI_PROFILES = {
         DOVIProfile{ 50, true, true, true, VideoVUIInfo(1, RGY_PRIM_UNSPECIFIED, RGY_MATRIX_UNSPECIFIED, RGY_TRANSFER_UNSPECIFIED, 5, RGY_COLORRANGE_FULL,    RGY_CHROMALOC_UNSPECIFIED) },
diff --git a/NVEncCore/rgy_bitstream.h b/NVEncCore/rgy_bitstream.h
index d747bbe7..77b09d65 100644
--- a/NVEncCore/rgy_bitstream.h
+++ b/NVEncCore/rgy_bitstream.h
@@ -274,6 +274,8 @@ class DOVIRpu {
     ~DOVIRpu();
     int init(const TCHAR *rpu_file);
     int get_next_rpu_nal(std::vector<uint8_t>& bytes, const int64_t id);
+    int get_next_rpu_obu(std::vector<uint8_t>& bytes, const int64_t id);
+    int get_next_rpu(std::vector<uint8_t>& bytes, const int64_t id, const RGY_CODEC codec);
     const tstring& get_filepath() const;
 
 protected:
diff --git a/NVEncCore/rgy_output.cpp b/NVEncCore/rgy_output.cpp
index 6de2c473..6760f54c 100644
--- a/NVEncCore/rgy_output.cpp
+++ b/NVEncCore/rgy_output.cpp
@@ -740,11 +740,11 @@ RGY_ERR RGYOutputRaw::WriteNextOneFrame(RGYBitstream *pBitstream) {
     }
     if (m_doviRpu) {
         std::vector<uint8_t> dovi_nal;
-        if (m_doviRpu->get_next_rpu_nal(dovi_nal, bs_framedata.inputFrameId) != 0) {
+        if (m_doviRpu->get_next_rpu(dovi_nal, bs_framedata.inputFrameId, m_VideoOutputInfo.codec) != 0) {
             AddMessage(RGY_LOG_ERROR, _T("Failed to get dovi rpu for %lld.\n"), bs_framedata.inputFrameId);
         }
         if (dovi_nal.size() > 0) {
-            metadataList.push_back(std::make_unique<RGYOutputInsertMetadata>(dovi_nal, false, true));
+            metadataList.push_back(std::make_unique<RGYOutputInsertMetadata>(dovi_nal, false, m_VideoOutputInfo.codec == RGY_CODEC_HEVC ? true : false));
         }
     } else {
         auto [err_dovirpu, metadata_dovi_rpu] = getMetadata<RGYFrameDataDOVIRpu>(RGY_FRAME_DATA_DOVIRPU, bs_framedata);
diff --git a/NVEncCore/rgy_output_avcodec.cpp b/NVEncCore/rgy_output_avcodec.cpp
index a7e6e073..6a021ffa 100644
--- a/NVEncCore/rgy_output_avcodec.cpp
+++ b/NVEncCore/rgy_output_avcodec.cpp
@@ -2759,11 +2759,11 @@ RGY_ERR RGYOutputAvcodec::WriteNextFrameInternalOneFrame(RGYBitstream *bitstream
     }
     if (m_Mux.video.doviRpu) {
         std::vector<uint8_t> dovi_nal;
-        if (m_Mux.video.doviRpu->get_next_rpu_nal(dovi_nal, bs_framedata.inputFrameId) != 0) {
+        if (m_Mux.video.doviRpu->get_next_rpu(dovi_nal, bs_framedata.inputFrameId, m_VideoOutputInfo.codec) != 0) {
             AddMessage(RGY_LOG_ERROR, _T("Failed to get dovi rpu for %lld.\n"), bs_framedata.inputFrameId);
         }
         if (dovi_nal.size() > 0) {
-            metadataList.push_back(std::make_unique<RGYOutputInsertMetadata>(dovi_nal, false, true));
+            metadataList.push_back(std::make_unique<RGYOutputInsertMetadata>(dovi_nal, false, m_VideoOutputInfo.codec == RGY_CODEC_HEVC ? true : false));
         }
     } else {
         auto [err_dovirpu, metadata_dovi_rpu] = getMetadata<RGYFrameDataDOVIRpu>(RGY_FRAME_DATA_DOVIRPU, bs_framedata);