diff --git a/multitree/build_vendor.sh b/multitree/build_vendor.sh
index 790d31044..84afcfdd9 100755
--- a/multitree/build_vendor.sh
+++ b/multitree/build_vendor.sh
@@ -60,6 +60,8 @@ done
 
 cp out/target/product/$device/vendor.img $dist_dir
 
+mkdir -p $dist_dir/logs
+
 out/host/linux-x86/bin/collect_ninja_inputs -n prebuilts/build-tools/linux-x86/bin/ninja \
   -f out/combined-$product.ninja -t vendorimage -m $dist_dir/manifest_$build_id.xml \
-  > $dist_dir/ninja_inputs.json
+  --out $dist_dir/logs/ninja_inputs
diff --git a/tools/ninja_dependency_analysis/Android.bp b/tools/ninja_dependency_analysis/Android.bp
index b8756487f..cda0ba813 100644
--- a/tools/ninja_dependency_analysis/Android.bp
+++ b/tools/ninja_dependency_analysis/Android.bp
@@ -6,7 +6,15 @@ python_binary_host {
     name: "collect_ninja_inputs",
     srcs: [
         "collect_ninja_inputs.py",
+        "ninja_metrics_proto/ninja_metrics.py",
+        "ninja_metrics_proto/ninja_metrics.proto",
     ],
+    libs: [
+        "libprotobuf-python",
+    ],
+    proto: {
+        canonical_path_from_root: false,
+    },
     version: {
         py2: {
             enabled: false,
diff --git a/tools/ninja_dependency_analysis/collect_ninja_inputs.py b/tools/ninja_dependency_analysis/collect_ninja_inputs.py
index e7f2234c8..f78357f4a 100755
--- a/tools/ninja_dependency_analysis/collect_ninja_inputs.py
+++ b/tools/ninja_dependency_analysis/collect_ninja_inputs.py
@@ -23,7 +23,7 @@ import sys
 import xml.etree.ElementTree as ET
 from collections import OrderedDict
 from operator import itemgetter
-
+from ninja_metrics_proto import ninja_metrics
 
 def build_cmd(ninja_binary, ninja_file, target, exempted_file_list):
     cmd = [ninja_binary, '-f', ninja_file, '-t', 'inputs']
@@ -53,6 +53,7 @@ parser.add_argument('-n', '--ninja_binary', type=pathlib.Path, required=True)
 parser.add_argument('-f', '--ninja_file', type=pathlib.Path, required=True)
 parser.add_argument('-t', '--target', type=str, required=True)
 parser.add_argument('-e', '--exempted_file_list', type=pathlib.Path)
+parser.add_argument('-o', '--out', type=pathlib.Path)
 group = parser.add_mutually_exclusive_group()
 group.add_argument('-r', '--repo_project_list', type=pathlib.Path)
 group.add_argument('-m', '--repo_manifest', type=pathlib.Path)
@@ -82,4 +83,11 @@ if projects:
     result['total_project_count'] = len(project_to_count)
 
 result['total_input_count'] = len(input_files)
-print(json.dumps(result, indent=2))
+
+if args.out:
+    with open(os.path.join(args.out.parent, args.out.name + '.json'), 'w') as json_file:
+        json.dump(result, json_file, indent=2)
+    with open(os.path.join(args.out.parent, args.out.name + '.pb'), 'wb') as pb_file:
+        pb_file.write(ninja_metrics.generate_proto(result).SerializeToString())
+else:
+    print(json.dumps(result, indent=2))
diff --git a/tools/ninja_dependency_analysis/ninja_metrics_proto/ninja_metrics.proto b/tools/ninja_dependency_analysis/ninja_metrics_proto/ninja_metrics.proto
new file mode 100644
index 000000000..f6294f07a
--- /dev/null
+++ b/tools/ninja_dependency_analysis/ninja_metrics_proto/ninja_metrics.proto
@@ -0,0 +1,28 @@
+// Copyright (C) 2022 The Android Open Source Project
+//
+// 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.
+
+syntax = "proto3";
+
+package ninja_metrics;
+
+message NinjaMetrics {
+    uint32 num_input_files = 1;
+    uint32 num_projects = 2;
+    repeated ProjectInfo project_infos = 3;
+}
+
+message ProjectInfo {
+    string name = 1;
+    uint32 num_input_files = 2;
+}
\ No newline at end of file
diff --git a/tools/ninja_dependency_analysis/ninja_metrics_proto/ninja_metrics.py b/tools/ninja_dependency_analysis/ninja_metrics_proto/ninja_metrics.py
new file mode 100644
index 000000000..6dff394fb
--- /dev/null
+++ b/tools/ninja_dependency_analysis/ninja_metrics_proto/ninja_metrics.py
@@ -0,0 +1,37 @@
+#!/usr/bin/env python3
+
+# Copyright (C) 2022 The Android Open Source Project
+#
+# 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.
+
+from ninja_metrics_proto import ninja_metrics_pb2
+
+def generate_proto(ninja_data: dict):
+    proto = ninja_metrics_pb2.NinjaMetrics()
+    proto.num_input_files = ninja_data['total_input_count']
+    proto.num_projects = ninja_data['total_project_count']
+    for project in ninja_data['project_count']:
+        project_info = proto.project_infos.add()
+        project_info.name = project
+        project_info.num_input_files = ninja_data['project_count'][project]
+    return proto
+
+def print_proto_file(proto_file):
+    proto = ninja_metrics_pb2.NinjaMetrics()
+    proto.ParseFromString(proto_file.read())
+    print("num_input_files: ", proto.num_input_files)
+    print("num_projects: ", proto.num_projects)
+    print("project_infos: [")
+    for project in proto.project_infos:
+        print(f"  {project.name}: {project.num_input_files}")
+    print("]")
\ No newline at end of file