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Initial implementation of camera-controller app (#37835)
* Initial implemenation of camera-controller app * Fix build errors * Remove ICD stuff since it is not needed for camera
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‎.github/workflows/examples-linux-standalone.yaml

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.environment/pigweed-venv/bin/python3 scripts/tools/memory/gh_sizes.py \
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linux debug camera-app \
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out/linux-x64-camera/chip-camera-app \
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/tmp/bloat_reports/
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/tmp/bloat_reports/
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- name: Build example Camera Controller App
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run: |
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./scripts/run_in_build_env.sh \
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"./scripts/build/build_examples.py \
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--target linux-x64-camera-controller \
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build"
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.environment/pigweed-venv/bin/python3 scripts/tools/memory/gh_sizes.py \
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linux debug camera-controller \
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out/linux-x64-camera-controller/camera-controller \
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/tmp/bloat_reports/
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- name: Uploading Size Reports
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uses: ./.github/actions/upload-size-reports
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if: ${{ !env.ACT }}

‎docs/examples/camera_controller.md

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## Camera
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```{toctree}
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:glob:
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:maxdepth: 1
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camera-controller/README
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```

‎examples/camera-controller/.gn

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# Copyright (c) 2025 Project CHIP Authors
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import("//build_overrides/build.gni")
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# The location of the build configuration file.
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buildconfig = "${build_root}/config/BUILDCONFIG.gn"
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# CHIP uses angle bracket includes.
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check_system_includes = true
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default_args = {
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import("//args.gni")
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}

‎examples/camera-controller/BUILD.gn

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# Copyright (c) 2025 Project CHIP Authors
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import("//build_overrides/build.gni")
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import("//build_overrides/chip.gni")
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import("//build_overrides/editline.gni")
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import("${chip_root}/build/chip/tools.gni")
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import("${chip_root}/examples/camera-controller/camera-controller.gni")
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import("${chip_root}/src/lib/core/core.gni")
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assert(chip_build_tools)
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config("config") {
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include_dirs = [
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".",
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"${chip_root}/examples/common",
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"${chip_root}/zzz_generated/app-common/app-common",
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"${chip_root}/zzz_generated/chip-tool",
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"${chip_root}/src/lib",
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]
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defines = [ "CONFIG_USE_SEPARATE_EVENTLOOP=${config_use_separate_eventloop}" ]
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# Note: CONFIG_USE_LOCAL_STORAGE is tested for via #ifdef, not #if.
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if (config_use_local_storage) {
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defines += [ "CONFIG_USE_LOCAL_STORAGE" ]
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}
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}
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static_library("camera-controller-utils") {
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sources = [
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"${chip_root}/src/controller/ExamplePersistentStorage.cpp",
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"${chip_root}/src/controller/ExamplePersistentStorage.h",
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"${chip_root}/zzz_generated/chip-tool/zap-generated/cluster/ComplexArgumentParser.cpp",
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"${chip_root}/zzz_generated/chip-tool/zap-generated/cluster/logging/DataModelLogger.cpp",
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"commands/clusters/ModelCommand.cpp",
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"commands/clusters/ModelCommand.h",
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"commands/clusters/ReportCommand.cpp",
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"commands/clusters/ReportCommand.h",
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"commands/common/CHIPCommand.cpp",
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"commands/common/CHIPCommand.h",
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"commands/common/Command.cpp",
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"commands/common/Command.h",
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"commands/common/Commands.cpp",
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"commands/common/Commands.h",
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"commands/common/CredentialIssuerCommands.h",
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"commands/common/HexConversion.h",
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"commands/common/RemoteDataModelLogger.cpp",
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"commands/common/RemoteDataModelLogger.h",
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"commands/pairing/OpenCommissioningWindowCommand.cpp",
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"commands/pairing/OpenCommissioningWindowCommand.h",
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"commands/pairing/PairingCommand.cpp",
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"commands/pairing/ToTLVCert.cpp",
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]
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deps = [ "${chip_root}/src/app:events" ]
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sources += [ "commands/interactive/InteractiveCommands.cpp" ]
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deps += [
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"${chip_root}/src/platform/logging:headers",
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"${editline_root}:editline",
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]
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if (chip_device_platform == "darwin") {
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sources += [ "commands/common/DeviceScanner.cpp" ]
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}
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public_deps = [
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"${chip_root}/examples/common/tracing:commandline",
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"${chip_root}/src/app/server",
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"${chip_root}/src/app/tests/suites/commands/interaction_model",
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"${chip_root}/src/controller/data_model",
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"${chip_root}/src/credentials:file_attestation_trust_store",
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"${chip_root}/src/lib",
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"${chip_root}/src/lib/core:types",
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"${chip_root}/src/lib/support/jsontlv",
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"${chip_root}/src/platform",
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"${chip_root}/third_party/inipp",
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"${chip_root}/third_party/jsoncpp",
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]
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public_configs = [ ":config" ]
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if (chip_enable_transport_trace) {
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public_deps +=
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[ "${chip_root}/examples/common/tracing:trace_handlers_decoder" ]
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}
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output_dir = root_out_dir
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}
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executable("camera-controller") {
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sources = [ "main.cpp" ]
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deps = [
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":camera-controller-utils",
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"${chip_root}/src/platform/logging:stdio",
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]
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output_dir = root_out_dir
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}
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group("default") {
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deps = [ ":camera-controller" ]
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}

‎examples/camera-controller/README.md

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# Matter Camera Controller Example
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This example application demonstrates the CHIP Camera Controller running on a
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Linux platform and explains how to build and run the Camera Controller Example
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on Linux.
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In a typical setup, the Camera Controller app manages a CameraDevice app running
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on a Raspberry Pi. The CameraDevice captures and encodes the video feed before
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streaming it through a WebRTC track, while the CameraController receives this
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video stream and displays it, creating a complete end-to-end camera solution.
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---
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- [Building the Example Application](#building-the-example-application)
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---
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## Building the Example Application
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For Linux host example:
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```
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source scripts/activate.sh
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./scripts/build/build_examples.py --target linux-x64-camera-controller build
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```

‎examples/camera-controller/args.gni

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# Copyright (c) 2025 Project CHIP Authors
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import("//build_overrides/chip.gni")
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import("${chip_root}/config/standalone/args.gni")
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chip_device_project_config_include = "<CHIPProjectAppConfig.h>"
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chip_project_config_include = "<CHIPProjectAppConfig.h>"
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chip_system_project_config_include = "<SystemProjectConfig.h>"
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chip_project_config_include_dirs =
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[ "${chip_root}/examples/camera-controller/include" ]
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chip_project_config_include_dirs += [ "${chip_root}/config/standalone" ]
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matter_enable_tracing_support = true
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matter_log_json_payload_hex = true
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matter_log_json_payload_decode_full = true
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# make camera-controller very strict by default
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chip_tlv_validate_char_string_on_read = true
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chip_tlv_validate_char_string_on_write = true

‎examples/camera-controller/build_overrides

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../build_overrides

‎examples/camera-controller/camera-controller.gni

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# Copyright (c) 2025 Project CHIP Authors
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import("//build_overrides/build.gni")
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import("//build_overrides/chip.gni")
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declare_args() {
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# Use a separate eventloop for CHIP tasks
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config_use_separate_eventloop = true
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config_use_local_storage = true
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}

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