AxisCommunications · pataxis · Oct 8, 2024 · Oct 2, 2024
@@ -1,30 +1,30 @@
-name: Build metadata-broker applications
+name: Build message-broker applications
 on:
   workflow_dispatch:
   push:
     paths:
-      - 'metadata-broker/**'
-      - '!metadata-broker/README.md'
-      - '.github/workflows/metadata-broker.yml'
+      - 'message-broker/**'
+      - '!message-broker/README.md'
+      - '.github/workflows/message-broker.yml'
 jobs:
   test-app:
     name: Test app
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        axis-os: ["11.11.70"]
+        axis-os: ["12.0.93"]
         arch: ["armv7hf", "aarch64"]
     env:
       EXREPO: acap-native-examples
-      EXNAME: metadata-broker
+      EXNAME: message-broker
     steps:
       - uses: actions/checkout@v4
       - uses: docker/setup-buildx-action@v3
 
       - name: Build ${{ env.example }} application
         env:
-          example: consume-analytics-scene-description
-          imagetag: ${{ env.EXREPO }}_consume-analytics-scene-description:${{ matrix.arch }}
+          example: consume-scene-metadata
+          imagetag: ${{ env.EXREPO }}_consume-scene-metadata:${{ matrix.arch }}
         run: |
           docker image rm -f $imagetag
           cd $EXNAME/$example

@@ -40,8 +40,8 @@ Below is the list of examples available in the repository.
   - A simple hello world C application.
 - [licensekey](./licensekey/)
   - An example in C that illustrates how to check the licensekey status.
-- [metadata-broker](./metadata-broker/)
-  - Examples that consume metadata.
+- [message-broker](./message-broker/)
+  - Examples that showcase how to use the Message Broker API.
 - [object-detection](./object-detection/)
   - An example of object detection, cropping and saving detected objects into JPEG files.
 - [object-detection-cv25](./object-detection-cv25/)

@@ -1,19 +1,18 @@
 *Copyright (C) 2024, Axis Communications AB, Lund, Sweden. All Rights Reserved.*
 
-# ACAP applications using Metadata Broker API
+# ACAP applications using the Message Broker API
 
 This directory contains ACAP application examples that interacts with the
-[Metadata Broker API](https://axiscommunications.github.io/acap-documentation/docs/api/native-sdk-api.html#metadata-broker-api).
+[Message Broker API](https://axiscommunications.github.io/acap-documentation/docs/api/native-sdk-api.html#message-broker-api).
 
 ## Example applications
 
 Each example has as a README file in its directory which shows overview,
 example directory structure and step-by-step instructions on how to run
 applications on an Axis device.
 
-- [Consume Analytics Scene Description](./consume-analytics-scene-description/README.md)
-  - The example is written in C and shows how to consume metadata stream
-    **Analytics Scene Description**.
+- [Consume AXIS Scene Metadata](./consume-scene-metadata/README.md)
+  - The example is written in C and shows how to consume [Scene Metadata](https://www.axis.com/developer-community/scene-metadata-integration).
 
 ## License
 

@@ -1,6 +1,6 @@
 ARG ARCH=
-ARG VERSION=1.15
-ARG UBUNTU_VERSION=22.04
+ARG VERSION=12.0.0-rc.1
+ARG UBUNTU_VERSION=24.04
 ARG REPO=axisecp
 ARG SDK=acap-native-sdk
 

@@ -1,26 +1,31 @@
 *Copyright (C) 2024, Axis Communications AB, Lund, Sweden. All Rights Reserved.*
 
-# ACAP application consuming metadata stream Analytics Scene Description
+# ACAP application consuming AXIS Scene Metadata
 
 > [!IMPORTANT]
 >
-> - The Metadata Broker API is released as a [Beta API](https://axiscommunications.github.io/acap-documentation/docs/api/beta-api.html).
+> - The Message Broker API is released as a [Beta API](https://axiscommunications.github.io/acap-documentation/docs/api/beta-api.html).
 > To get all topics that can be subscribed to, see more information in the
-> [API documentation](https://axiscommunications.github.io/acap-documentation/docs/api/src/api/metadata-broker/html/standard_topics.html).
-> - First released in ACAP Native SDK 1.13 which maps to AXIS OS 11.9.
+> [API documentation](https://axiscommunications.github.io/acap-documentation/docs/api/src/api/message-broker/html/standard_topics.html).
+> - In ACAP Native SDK 1.13 which maps to AXIS OS 11.9:
+>   - **Metadata Broker API** was released as a Beta API.
 >   - In this release there's only one topic (`com.axis.analytics_scene_description.v0.beta`) that can be subscribed to.
 > - In ACAP Native SDK 1.15 which maps to AXIS OS 11.11, there are the following updates:
->   - Breaking change in function names, see more info in the [Changelog](https://axiscommunications.github.io/acap-documentation/docs/api/src/api/metadata-broker/html/release_notes.html).
->   - A new topic has been added called `com.axis.consolidated_track.v1.beta`
+>   - Breaking change in function names, see more info in the [Changelog](https://axiscommunications.github.io/acap-documentation/docs/api/src/api/message-broker/html/release_notes.html).
+>   - A new topic has been added called `com.axis.consolidated_track.v1.beta` for [consolidated scene metadata](https://www.axis.com/developer-community/scene-metadata-integration).
+> - In ACAP Native SDK 12.0 which maps to AXIS OS 12.0:
+>   - The **Metadata Broker API** has been renamed to **Message Broker API**.
 
 ## Use case
 
 - Consume streamed analytics metadata of detected objects in the scene.
 
 ## Introduction
 
-This example showcases how an ACAP application can `consume` metadata in AXIS OS
-by using the [Metadata Broker API](https://axiscommunications.github.io/acap-documentation/docs/api/native-sdk-api.html#metadata-broker-api).
+This example showcases how an ACAP application can `consume` frame-by-frame scene metadata in AXIS OS
+by using the [Message Broker API](https://axiscommunications.github.io/acap-documentation/docs/api/native-sdk-api.html#message-broker-api).
+To learn more about analytics metadata generated by Axis devices see
+[AXIS Scene Metadata integration](https://www.axis.com/developer-community/scene-metadata-integration).
 
 The ACAP application is a **consumer** that subscribes to the `topic`
 `com.axis.analytics_scene_description.v0.beta`.
@@ -111,20 +116,20 @@ These instructions will guide you on how to execute the code. Below is the
 structure and scripts used in the example:
 
 ```sh
-consume-analytics-scene-description
+consume-scene-metadata
 ├── app
 │   ├── LICENSE
 │   ├── Makefile
 │   ├── manifest.json
-│   └── consume_analytics_metadata.c
+│   └── consume_scene_metadata.c
 ├── Dockerfile
 └── README.md
 ```
 
 - **app/LICENSE** - Text file which lists all open source licensed source code distributed with the application.
 - **app/Makefile** - Makefile containing the build and link instructions for building the ACAP application.
 - **app/manifest.json** - Defines the application and its configuration.
-- **app/consume_analytics_metadata.c** - Application source code.
+- **app/consume_scene_metadata.c** - Application source code.
 - **Dockerfile** - Dockerfile with the specified Axis toolchain and API container to build the example specified.
 - **README.md** - Step by step instructions on how to run the example.
 
@@ -149,7 +154,7 @@ Standing in your working directory run the following commands:
 docker build --tag <APP_IMAGE> --build-arg ARCH=<ARCH> .
 ```
 
-- `<APP_IMAGE>` is the name to tag the image with, e.g., `consume_analytics_metadata:1.0`
+- `<APP_IMAGE>` is the name to tag the image with, e.g., `consume_scene_metadata:1.0`
 - `<ARCH>` is the SDK architecture, `armv7hf` or `aarch64`.
 
 Copy the result from the container image to a local directory build:
@@ -161,32 +166,32 @@ docker cp $(docker create <APP_IMAGE>):/opt/app ./build
 The working directory now contains a build folder with the following files:
 
 ```sh
-consume-analytics-scene-description
+consume-scene-metadata
 ├── app
 │   ├── LICENSE
 │   ├── Makefile
 │   ├── manifest.json
-│   └── consume_analytics_metadata.c
+│   └── consume_scene_metadata.c
 ├── build
 │   ├── LICENSE
 │   ├── Makefile
 │   ├── manifest.json
 │   ├── package.conf
 │   ├── param.conf
-│   ├── consume_analytics_metadata*
-│   ├── consume_analytics_metadata_1_0_0_armv7hf.eap
-│   ├── consume_analytics_metadata_1_0_0_LICENSE.txt
-│   └── consume_analytics_metadata.c
+│   ├── consume_scene_metadata*
+│   ├── consume_scene_metadata_1_0_0_armv7hf.eap
+│   ├── consume_scene_metadata_1_0_0_LICENSE.txt
+│   └── consume_scene_metadata.c
 ├── Dockerfile
 └── README.md
 ```
 
 - **build/manifest.json** - Defines the application and its configuration.
 - **build/package.conf** - Defines the application and its configuration.
 - **build/param.conf** - File containing application parameters.
-- **build/consume_analytics_metadata*** - Application executable binary file.
-- **build/consume_analytics_metadata_1_0_0_armv7hf.eap** - Application package .eap file.
-- **build/consume_analytics_metadata_1_0_0_LICENSE.txt** - Copy of LICENSE file.
+- **build/consume_scene_metadata*** - Application executable binary file.
+- **build/consume_scene_metadata_1_0_0_armv7hf.eap** - Application package .eap file.
+- **build/consume_scene_metadata_1_0_0_LICENSE.txt** - Copy of LICENSE file.
 
 #### Install your application
 
@@ -198,28 +203,28 @@ http://<AXIS_DEVICE_IP>/index.html#apps
 
 - Click on the tab `App` in the device GUI
 - Click `(+)` sign to upload the application file
-- Browse to the newly built `consume_analytics_metadata_1_0_0_armv7hf.eap`
+- Browse to the newly built `consume_scene_metadata_1_0_0_armv7hf.eap`
 - Click `Install`
 - Run the application by enabling the `Start` switch
 
 #### The expected output
 
 The application log can be found at
 
-- Browse to `http://<AXIS_DEVICE_IP>/axis-cgi/admin/systemlog.cgi?appname=consume_analytics_metadata`.
+- Browse to `http://<AXIS_DEVICE_IP>/axis-cgi/admin/systemlog.cgi?appname=consume_scene_metadata`.
 
 > [!IMPORTANT]
 > The logged output can have data which is empty or has a detection.
 > To get a detection, make sure to have an object that can be detected by
 > the Axis device scene data. Examples are persons and cars.
 
 ```sh
------ Contents of SYSTEM_LOG for 'consume_analytics_metadata' -----
+----- Contents of SYSTEM_LOG for 'consume_scene_metadata' -----
 
-consume_analytics_metadata[3844]: Subscribed to com.axis.analytics_scene_description.v0.beta (1)...
-consume_analytics_metadata[3844]: Subscriber started...
-consume_analytics_metadata[3844]: message received from topic: com.axis.analytics_scene_description.v0.beta on source: 1: Monotonic time - 483.054847000. Data - {"frame":{"observations":[{"bounding_box":{"bottom":0.7384,"left":0.4254,"right":0.7552,"top":0.4216},"class":{"score":0.74,"type":"Car"},"timestamp":"2024-02-14T15:37:20.940582Z","track_id":"25"},{"bounding_box":{"bottom":0.9431,"left":0.9656,"right":0.9989,"top":0.8384},"timestamp":"2024-02-14T15:37:20.940582Z","track_id":"26"},{"bounding_box":{"bottom":0.8378,"left":0.8102,"right":0.9693,"top":0.1988},"class":{"score":0.75,"type":"Human"},"timestamp":"2024-02-14T15:37:20.940582Z","track_id":"37"},{"bounding_box":{"bottom":0.0553,"left":0.727,"right":0.7499,"top":0.0443},"timestamp":"2024-02-14T15:37:20.940582Z","track_id":"44"},{"bounding_box":{"bottom":0.7997,"left":0.9833,"right":0.9989,"top":0.7262},"timestamp":"2024-02-14T15:37:20.940582Z","track_id":"45"},{"bounding_box":{"bottom":0.9689,"left":0.0208,"right":0.6354,"top":0.002},"timestamp":"2024-02-14T15:37:20.940582Z","track_id":"46"},{"bounding_box":{"bottom":0.3236,"left":0.7083,"right":0.8041,"top":0.0994},"timestamp":"2024-02-14T15:37:20.940582Z","track_id":"48"}],"operations":[],"timestamp":"2024-02-14T15:37:20.940582Z"}}
-consume_analytics_metadata[3844]: message received from topic: com.axis.analytics_scene_description.v0.beta on source: 1: Monotonic time - 483.154843000. Data - {"frame":{"observations":[{"bounding_box":{"bottom":0.7413,"left":0.4396,"right":0.7661,"top":0.4234},"class":{"score":0.74,"type":"Car"},"timestamp":"2024-02-14T15:37:21.040577Z","track_id":"25"},{"bounding_box":{"bottom":0.9431,"left":0.9656,"right":0.9989,"top":0.8365},"timestamp":"2024-02-14T15:37:21.040577Z","track_id":"26"},{"bounding_box":{"bottom":0.839,"left":0.8295,"right":0.9782,"top":0.2037},"class":{"score":0.75,"type":"Human"},"timestamp":"2024-02-14T15:37:21.040577Z","track_id":"37"},{"bounding_box":{"bottom":0.9395,"left":0.0219,"right":0.6531,"top":0.002},"timestamp":"2024-02-14T15:37:21.040577Z","track_id":"46"},{"bounding_box":{"bottom":0.3181,"left":0.7094,"right":0.8114,"top":0.1012},"timestamp":"2024-02-14T15:37:21.040577Z","track_id":"48"}],"operations":[{"id":"35","type":"DeleteOperation"},{"id":"47","type":"DeleteOperation"}],"timestamp":"2024-02-14T15:37:21.040577Z"}}
+consume_scene_metadata[3844]: Subscribed to com.axis.analytics_scene_description.v0.beta (1)...
+consume_scene_metadata[3844]: Subscriber started...
+consume_scene_metadata[3844]: message received from topic: com.axis.analytics_scene_description.v0.beta on source: 1: Monotonic time - 483.054847000. Data - {"frame":{"observations":[{"bounding_box":{"bottom":0.7384,"left":0.4254,"right":0.7552,"top":0.4216},"class":{"score":0.74,"type":"Car"},"timestamp":"2024-02-14T15:37:20.940582Z","track_id":"25"},{"bounding_box":{"bottom":0.9431,"left":0.9656,"right":0.9989,"top":0.8384},"timestamp":"2024-02-14T15:37:20.940582Z","track_id":"26"},{"bounding_box":{"bottom":0.8378,"left":0.8102,"right":0.9693,"top":0.1988},"class":{"score":0.75,"type":"Human"},"timestamp":"2024-02-14T15:37:20.940582Z","track_id":"37"},{"bounding_box":{"bottom":0.0553,"left":0.727,"right":0.7499,"top":0.0443},"timestamp":"2024-02-14T15:37:20.940582Z","track_id":"44"},{"bounding_box":{"bottom":0.7997,"left":0.9833,"right":0.9989,"top":0.7262},"timestamp":"2024-02-14T15:37:20.940582Z","track_id":"45"},{"bounding_box":{"bottom":0.9689,"left":0.0208,"right":0.6354,"top":0.002},"timestamp":"2024-02-14T15:37:20.940582Z","track_id":"46"},{"bounding_box":{"bottom":0.3236,"left":0.7083,"right":0.8041,"top":0.0994},"timestamp":"2024-02-14T15:37:20.940582Z","track_id":"48"}],"operations":[],"timestamp":"2024-02-14T15:37:20.940582Z"}}
+consume_scene_metadata[3844]: message received from topic: com.axis.analytics_scene_description.v0.beta on source: 1: Monotonic time - 483.154843000. Data - {"frame":{"observations":[{"bounding_box":{"bottom":0.7413,"left":0.4396,"right":0.7661,"top":0.4234},"class":{"score":0.74,"type":"Car"},"timestamp":"2024-02-14T15:37:21.040577Z","track_id":"25"},{"bounding_box":{"bottom":0.9431,"left":0.9656,"right":0.9989,"top":0.8365},"timestamp":"2024-02-14T15:37:21.040577Z","track_id":"26"},{"bounding_box":{"bottom":0.839,"left":0.8295,"right":0.9782,"top":0.2037},"class":{"score":0.75,"type":"Human"},"timestamp":"2024-02-14T15:37:21.040577Z","track_id":"37"},{"bounding_box":{"bottom":0.9395,"left":0.0219,"right":0.6531,"top":0.002},"timestamp":"2024-02-14T15:37:21.040577Z","track_id":"46"},{"bounding_box":{"bottom":0.3181,"left":0.7094,"right":0.8114,"top":0.1012},"timestamp":"2024-02-14T15:37:21.040577Z","track_id":"48"}],"operations":[{"id":"35","type":"DeleteOperation"},{"id":"47","type":"DeleteOperation"}],"timestamp":"2024-02-14T15:37:21.040577Z"}}
 ```
 
 The format of a detection shown in a more readable way.

@@ -1,4 +1,4 @@
-PROG1	= consume_analytics_metadata
+PROG1	= consume_scene_metadata
 OBJS1	= $(PROG1).c
 PROGS	= $(PROG1)
 DEBUG_DIR = debug

@@ -15,7 +15,7 @@
  */
 
 /**
- * This example creates a Metadata Broker subscriber for the
+ * This example creates a Message Broker subscriber for the
  * analytics_scene_description topic. Streamed messages are received in the
  * Analytics Data Format (ADF) and is logged to syslog.
  */

@@ -2,7 +2,7 @@
     "schemaVersion": "1.7.0",
     "acapPackageConf": {
         "setup": {
-            "appName": "consume_analytics_metadata",
+            "appName": "consume_scene_metadata",
             "vendor": "Axis Communications",
             "embeddedSdkVersion": "3.0",
             "vendorUrl": "https://www.axis.com",