diff --git a/src/gfxstream/codegen/scripts/cereal/api_log_decoder.py b/src/gfxstream/codegen/scripts/cereal/api_log_decoder.py
index 811cbbd8095..859bb837e3a 100644
--- a/src/gfxstream/codegen/scripts/cereal/api_log_decoder.py
+++ b/src/gfxstream/codegen/scripts/cereal/api_log_decoder.py
@@ -1,3 +1,6 @@
+# Copyright 2023 Google LLC
+# SPDX-License-Identifier: MIT
+
 import os
 from typing import List, Set, Dict, Optional
 
diff --git a/src/gfxstream/codegen/scripts/cereal/common/__init__.py b/src/gfxstream/codegen/scripts/cereal/common/__init__.py
index dd6cdc998a7..519ef23780e 100644
--- a/src/gfxstream/codegen/scripts/cereal/common/__init__.py
+++ b/src/gfxstream/codegen/scripts/cereal/common/__init__.py
@@ -1,2 +1,4 @@
+# Copyright 2023 Google LLC
+# SPDX-License-Identifier: MIT
 from .vulkantypes import *
 from .codegen import *
diff --git a/src/gfxstream/codegen/scripts/cereal/common/codegen.py b/src/gfxstream/codegen/scripts/cereal/common/codegen.py
index 688a947e043..bac483a2da4 100644
--- a/src/gfxstream/codegen/scripts/cereal/common/codegen.py
+++ b/src/gfxstream/codegen/scripts/cereal/common/codegen.py
@@ -1,18 +1,5 @@
-# Copyright (c) 2018 The Android Open Source Project
-# Copyright (c) 2018 Google Inc.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
+# Copyright 2023 Google LLC
+# SPDX-License-Identifier: MIT
 from .vulkantypes import VulkanType, VulkanTypeInfo, VulkanCompoundType, VulkanAPI
 from collections import OrderedDict
 from copy import copy
diff --git a/src/gfxstream/codegen/scripts/cereal/common/vulkantypes.py b/src/gfxstream/codegen/scripts/cereal/common/vulkantypes.py
index 728f23d2b4e..8f2fff2c72f 100644
--- a/src/gfxstream/codegen/scripts/cereal/common/vulkantypes.py
+++ b/src/gfxstream/codegen/scripts/cereal/common/vulkantypes.py
@@ -1,17 +1,5 @@
-# Copyright (c) 2018 The Android Open Source Project
-# Copyright (c) 2018 Google Inc.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Copyright 2018 Google LLC
+# SPDX-License-Identifier: MIT
 from typing import Dict, Optional, List, Set, Union
 from xml.etree.ElementTree import Element
 
diff --git a/src/gfxstream/codegen/scripts/cereal/counting.py b/src/gfxstream/codegen/scripts/cereal/counting.py
index 849ceafc3e4..b6d628aad31 100644
--- a/src/gfxstream/codegen/scripts/cereal/counting.py
+++ b/src/gfxstream/codegen/scripts/cereal/counting.py
@@ -1,17 +1,5 @@
-# Copyright (c) 2018 The Android Open Source Project
-# Copyright (c) 2018 Google Inc.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Copyright 2023 Google LLC
+# SPDX-License-Identifier: MIT
 
 from copy import copy
 
diff --git a/src/gfxstream/codegen/scripts/cereal/decoder.py b/src/gfxstream/codegen/scripts/cereal/decoder.py
index dc2dab751c6..6a6b3774a1c 100644
--- a/src/gfxstream/codegen/scripts/cereal/decoder.py
+++ b/src/gfxstream/codegen/scripts/cereal/decoder.py
@@ -1,3 +1,6 @@
+# Copyright 2023 Google LLC
+# SPDX-License-Identifier: MIT
+
 from .common.codegen import CodeGen, VulkanWrapperGenerator
 from .common.vulkantypes import VulkanAPI, makeVulkanTypeSimple, iterateVulkanType, VulkanTypeInfo,\
     VulkanType
diff --git a/src/gfxstream/codegen/scripts/cereal/decodersnapshot.py b/src/gfxstream/codegen/scripts/cereal/decodersnapshot.py
index 44953996206..bd8f163e18f 100644
--- a/src/gfxstream/codegen/scripts/cereal/decodersnapshot.py
+++ b/src/gfxstream/codegen/scripts/cereal/decodersnapshot.py
@@ -1,3 +1,6 @@
+# Copyright 2018 Google LLC
+# SPDX-License-Identifier: MIT
+
 from .common.codegen import CodeGen, VulkanWrapperGenerator, VulkanAPIWrapper
 from .common.vulkantypes import \
         VulkanAPI, makeVulkanTypeSimple, iterateVulkanType, DISPATCHABLE_HANDLE_TYPES, NON_DISPATCHABLE_HANDLE_TYPES
diff --git a/src/gfxstream/codegen/scripts/cereal/deepcopy.py b/src/gfxstream/codegen/scripts/cereal/deepcopy.py
index 52842e994b4..5921804ef9a 100644
--- a/src/gfxstream/codegen/scripts/cereal/deepcopy.py
+++ b/src/gfxstream/codegen/scripts/cereal/deepcopy.py
@@ -1,17 +1,5 @@
-# Copyright (c) 2018 The Android Open Source Project
-# Copyright (c) 2018 Google Inc.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Copyright 2018 Google LLC
+# SPDX-License-Identifier: MIT
 
 from .common.codegen import CodeGen
 from .common.vulkantypes import \
diff --git a/src/gfxstream/codegen/scripts/cereal/dispatch.py b/src/gfxstream/codegen/scripts/cereal/dispatch.py
index 4fdf9929835..c0e283d5500 100644
--- a/src/gfxstream/codegen/scripts/cereal/dispatch.py
+++ b/src/gfxstream/codegen/scripts/cereal/dispatch.py
@@ -1,17 +1,5 @@
-# Copyright (c) 2018 The Android Open Source Project
-# Copyright (c) 2018 Google Inc.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Copyright 2018 Google LLC
+# SPDX-License-Identifier: MIT
 
 from .common.codegen import CodeGen
 from .common.vulkantypes import \
diff --git a/src/gfxstream/codegen/scripts/cereal/encoder.py b/src/gfxstream/codegen/scripts/cereal/encoder.py
index 55048b96a29..42e5ff9c9f2 100644
--- a/src/gfxstream/codegen/scripts/cereal/encoder.py
+++ b/src/gfxstream/codegen/scripts/cereal/encoder.py
@@ -1,3 +1,5 @@
+# Copyright 2018 Google LLC
+# SPDX-License-Identifier: MIT
 import copy
 
 from .common.codegen import CodeGen, VulkanWrapperGenerator
diff --git a/src/gfxstream/codegen/scripts/cereal/extensionstructs.py b/src/gfxstream/codegen/scripts/cereal/extensionstructs.py
index 68115154fd6..caa4ea19ea8 100644
--- a/src/gfxstream/codegen/scripts/cereal/extensionstructs.py
+++ b/src/gfxstream/codegen/scripts/cereal/extensionstructs.py
@@ -1,17 +1,5 @@
-# Copyright (c) 2018 The Android Open Source Project
-# Copyright (c) 2018 Google Inc.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Copyright 2018 Google LLC
+# SPDX-License-Identifier: MIT
 
 from .common.codegen import CodeGen
 from .common.vulkantypes import \
diff --git a/src/gfxstream/codegen/scripts/cereal/frontend.py b/src/gfxstream/codegen/scripts/cereal/frontend.py
index b182c0e7852..2938a04f398 100644
--- a/src/gfxstream/codegen/scripts/cereal/frontend.py
+++ b/src/gfxstream/codegen/scripts/cereal/frontend.py
@@ -1,17 +1,5 @@
-# Copyright (c) 2018 The Android Open Source Project
-# Copyright (c) 2018 Google Inc.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Copyright 2018 Google LLC
+# SPDX-License-Identifier: MIT
 
 from .common.codegen import CodeGen, VulkanAPIWrapper
 from .common.vulkantypes import \
diff --git a/src/gfxstream/codegen/scripts/cereal/handlemap.py b/src/gfxstream/codegen/scripts/cereal/handlemap.py
index 6360e37e018..8ccc43cdfd4 100644
--- a/src/gfxstream/codegen/scripts/cereal/handlemap.py
+++ b/src/gfxstream/codegen/scripts/cereal/handlemap.py
@@ -1,17 +1,5 @@
-# Copyright (c) 2018 The Android Open Source Project
-# Copyright (c) 2018 Google Inc.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Copyright 2018 Google LLC
+# SPDX-License-Identifier: MIT
 
 from .common.codegen import CodeGen
 from .common.vulkantypes import \
diff --git a/src/gfxstream/codegen/scripts/cereal/marshaling.py b/src/gfxstream/codegen/scripts/cereal/marshaling.py
index 8fc67ddd6b9..0593fb3ceb6 100644
--- a/src/gfxstream/codegen/scripts/cereal/marshaling.py
+++ b/src/gfxstream/codegen/scripts/cereal/marshaling.py
@@ -1,17 +1,5 @@
-# Copyright (c) 2018 The Android Open Source Project
-# Copyright (c) 2018 Google Inc.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Copyright 2018 Google LLC
+# SPDX-License-Identifier: MIT
 
 from copy import copy
 import hashlib, sys
diff --git a/src/gfxstream/codegen/scripts/cereal/marshalingdefs.py b/src/gfxstream/codegen/scripts/cereal/marshalingdefs.py
index 01d4bc7da88..01ac6975054 100644
--- a/src/gfxstream/codegen/scripts/cereal/marshalingdefs.py
+++ b/src/gfxstream/codegen/scripts/cereal/marshalingdefs.py
@@ -1,17 +1,5 @@
-# Copyright (c) 2021 The Android Open Source Project
-# Copyright (c) 2021 Google Inc.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Copyright 2018 Google LLC
+# SPDX-License-Identifier: MIT
 
 KNOWN_FUNCTION_OPCODES = {
     "vkCreateInstance": 20000,
diff --git a/src/gfxstream/codegen/scripts/cereal/reservedmarshaling.py b/src/gfxstream/codegen/scripts/cereal/reservedmarshaling.py
index 1452c3e36d7..492077e42fc 100644
--- a/src/gfxstream/codegen/scripts/cereal/reservedmarshaling.py
+++ b/src/gfxstream/codegen/scripts/cereal/reservedmarshaling.py
@@ -1,17 +1,5 @@
-# Copyright (c) 2018 The Android Open Source Project
-# Copyright (c) 2018 Google Inc.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Copyright 2018 Google LLC
+# SPDX-License-Identifier: MIT
 from copy import copy
 
 from .common.codegen import CodeGen, VulkanAPIWrapper
diff --git a/src/gfxstream/codegen/scripts/cereal/subdecode.py b/src/gfxstream/codegen/scripts/cereal/subdecode.py
index feecc33c24c..3c535b35856 100644
--- a/src/gfxstream/codegen/scripts/cereal/subdecode.py
+++ b/src/gfxstream/codegen/scripts/cereal/subdecode.py
@@ -1,3 +1,5 @@
+# Copyright 2018 Google LLC
+# SPDX-License-Identifier: MIT
 from .common.codegen import CodeGen, VulkanWrapperGenerator
 from .common.vulkantypes import VulkanAPI, iterateVulkanType, VulkanType
 
diff --git a/src/gfxstream/codegen/scripts/cereal/testing.py b/src/gfxstream/codegen/scripts/cereal/testing.py
index 898532fc946..fdf4b1d7f9b 100644
--- a/src/gfxstream/codegen/scripts/cereal/testing.py
+++ b/src/gfxstream/codegen/scripts/cereal/testing.py
@@ -1,17 +1,5 @@
-# Copyright (c) 2018 The Android Open Source Project
-# Copyright (c) 2018 Google Inc.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Copyright 2018 Google LLC
+# SPDX-License-Identifier: MIT
 
 from copy import copy
 
diff --git a/src/gfxstream/codegen/scripts/cereal/transform.py b/src/gfxstream/codegen/scripts/cereal/transform.py
index 79aff0e3a8c..d0026bc5ba1 100644
--- a/src/gfxstream/codegen/scripts/cereal/transform.py
+++ b/src/gfxstream/codegen/scripts/cereal/transform.py
@@ -1,17 +1,5 @@
-# Copyright (c) 2018 The Android Open Source Project
-# Copyright (c) 2018 Google Inc.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Copyright 2018 Google LLC
+# SPDX-License-Identifier: MIT
 
 from .common.codegen import CodeGen
 from .common.vulkantypes import \
diff --git a/src/gfxstream/codegen/scripts/cereal/unbox.py b/src/gfxstream/codegen/scripts/cereal/unbox.py
index f18fa2717e7..6c9c1200c82 100644
--- a/src/gfxstream/codegen/scripts/cereal/unbox.py
+++ b/src/gfxstream/codegen/scripts/cereal/unbox.py
@@ -1,17 +1,5 @@
-# Copyright (c) 2018 The Android Open Source Project
-# Copyright (c) 2018 Google Inc.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Copyright 2018 Google LLC
+# SPDX-License-Identifier: MIT
 
 from .common.codegen import CodeGen
 from .common.vulkantypes import \
diff --git a/src/gfxstream/codegen/scripts/cereal/vkextensionstructuretype.py b/src/gfxstream/codegen/scripts/cereal/vkextensionstructuretype.py
index 8db988aea79..ca3f97d81ff 100644
--- a/src/gfxstream/codegen/scripts/cereal/vkextensionstructuretype.py
+++ b/src/gfxstream/codegen/scripts/cereal/vkextensionstructuretype.py
@@ -1,17 +1,5 @@
-# Copyright (c) 2022 The Android Open Source Project
-# Copyright (c) 2022 Google Inc.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Copyright 2018 Google LLC
+# SPDX-License-Identifier: MIT
 
 from .wrapperdefs import VulkanWrapperGenerator
 
diff --git a/src/gfxstream/codegen/scripts/cereal/wrapperdefs.py b/src/gfxstream/codegen/scripts/cereal/wrapperdefs.py
index 9b96987559d..5d6e2cdbe18 100644
--- a/src/gfxstream/codegen/scripts/cereal/wrapperdefs.py
+++ b/src/gfxstream/codegen/scripts/cereal/wrapperdefs.py
@@ -1,17 +1,5 @@
-# Copyright (c) 2018 The Android Open Source Project
-# Copyright (c) 2018 Google Inc.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Copyright 2018 Google LLC
+# SPDX-License-Identifier: MIT
 
 from .common.codegen import VulkanWrapperGenerator
 from .common.vulkantypes import makeVulkanTypeSimple
diff --git a/src/gfxstream/codegen/scripts/cerealgenerator.py b/src/gfxstream/codegen/scripts/cerealgenerator.py
index 99de1e29c9d..7d650ff06be 100644
--- a/src/gfxstream/codegen/scripts/cerealgenerator.py
+++ b/src/gfxstream/codegen/scripts/cerealgenerator.py
@@ -1,19 +1,5 @@
-#!/usr/bin/python3 -i
-#
-# Copyright (c) 2013-2018 The Khronos Group Inc.
-# Copyright (c) 2013-2018 Google Inc.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# Copyright 2023 Google LLC
+# SPDX-License-Identifier: MIT
 
 import os, re, sys
 from generator import *