Project import generated by Copybara.

GitOrigin-RevId: e3a43e4e5e519cd14df7095749059e2613bdcf76

docs/getting_started/building_examples.md

@@ -184,12 +184,8 @@ app:
 
 ### Prerequisite
 
-1.  Install [Xcode](https://developer.apple.com/xcode/) and the Command Line
-    Tools.
-
-    Follow Apple's instructions to obtain the required development certificates
-    and provisioning profiles for your iOS device. Install the Command Line
-    Tools by
+1.  Install [Xcode](https://developer.apple.com/xcode/), and additionally
+    install the Command Line Tools by:
 
     ```bash
     xcode-select --install
@@ -209,26 +205,31 @@ app:
     pip3 install --user six
     ```
 
-4.  Clone the MediaPipe repository.
+4.  Follow
+    [Apple's instructions](https://developer.apple.com/support/certificates/) to
+    obtain the required development certificates and provisioning profiles for
+    your iOS device.
+
+    Tip: You can the following command to see the provisioning profiles you have
+    previously downloaded using Xcode: `open
+    ~/Library/MobileDevice/"Provisioning Profiles"`. If there are none, generate
+    and download a profile on
+    [Apple's developer site](https://developer.apple.com/account/resources/).
+
+5.  Clone the MediaPipe repository.
 
     ```bash
     git clone https://github.com/google/mediapipe.git
     ```
 
-5.  Symlink or copy your provisioning profile to
-    `mediapipe/mediapipe/provisioning_profile.mobileprovision`.
+6.  In the cloned MediaPipe repository, symlink or copy your provisioning profile
+    to `mediapipe/provisioning_profile.mobileprovision`, e.g.,
 
     ```bash
     cd mediapipe
     ln -s ~/Downloads/MyProvisioningProfile.mobileprovision mediapipe/provisioning_profile.mobileprovision
     ```
 
-    Tip: You can use this command to see the provisioning profiles you have
-    previously downloaded using Xcode: `open
-    ~/Library/MobileDevice/"Provisioning Profiles"`. If there are none, generate
-    and download a profile on
-    [Apple's developer site](https://developer.apple.com/account/resources/).
-
 ### Option 1: Build with Bazel in Command Line
 
 1.  Modify the `bundle_id` field of the app's `ios_application` build target to
@@ -246,6 +247,10 @@ app:
 
     You may see a permission request from `codesign` in order to sign the app.
 
+    Tip: You can run this
+    [script](https://github.com/google/mediapipe/blob/master/build_ios_examples.sh)
+    to build all MediaPipe iOS example apps.
+
 3.  In Xcode, open the `Devices and Simulators` window (command-shift-2).
 
 4.  Make sure your device is connected. You will see a list of installed apps.

docs/getting_started/install.md

@@ -44,6 +44,18 @@ apps, see these [instructions](./building_examples.md#ios).
     [Bazel documentation](https://docs.bazel.build/versions/master/install-ubuntu.html)
     to install Bazel 2.0 or higher.
 
+    For Nvidia Jetson and Raspberry Pi devices with ARM Ubuntu, Bazel needs to
+    be built from source.
+
+    ```bash
+    # For Bazel 3.0.0
+    wget https://github.com/bazelbuild/bazel/releases/download/3.0.0/bazel-3.0.0-dist.zip
+    sudo apt-get install build-essential openjdk-8-jdk python zip unzip
+    unzip bazel-3.0.0-dist.zip
+    env EXTRA_BAZEL_ARGS="--host_javabase=@local_jdk//:jdk" bash ./compile.sh
+    sudo cp output/bazel /usr/local/bin/
+    ```
+
 3.  Install OpenCV and FFmpeg.
 
     Option 1. Use package manager tool to install the pre-compiled OpenCV
@@ -58,6 +70,14 @@ apps, see these [instructions](./building_examples.md#ios).
                            libopencv-imgproc-dev libopencv-video-dev
     ```
 
+    [`opencv_linux.BUILD`] is configured for x86_64 by default. For Nvidia
+    Jetson and Raspberry Pi devices with ARM Ubuntu, the lib paths need to be
+    modified.
+
+    ```bash
+    sed -i "s/x86_64-linux-gnu/aarch64-linux-gnu/g" third_party/opencv_linux.BUILD
+    ```
+
     Option 2. Run [`setup_opencv.sh`] to automatically build OpenCV from source
     and modify MediaPipe's OpenCV config.
 
@@ -493,14 +513,14 @@ cameras. Alternatively, you use a video file as input.
 
     ```bash
     username@DESKTOP-TMVLBJ1:~$ curl -sLO --retry 5 --retry-max-time 10 \
-    https://storage.googleapis.com/bazel/2.0.0/release/bazel-2.0.0-installer-linux-x86_64.sh && \
-    sudo mkdir -p /usr/local/bazel/2.0.0 && \
-    chmod 755 bazel-2.0.0-installer-linux-x86_64.sh && \
-    sudo ./bazel-2.0.0-installer-linux-x86_64.sh --prefix=/usr/local/bazel/2.0.0 && \
-    source /usr/local/bazel/2.0.0/lib/bazel/bin/bazel-complete.bash
+    https://storage.googleapis.com/bazel/3.0.0/release/bazel-3.0.0-installer-linux-x86_64.sh && \
+    sudo mkdir -p /usr/local/bazel/3.0.0 && \
+    chmod 755 bazel-3.0.0-installer-linux-x86_64.sh && \
+    sudo ./bazel-3.0.0-installer-linux-x86_64.sh --prefix=/usr/local/bazel/3.0.0 && \
+    source /usr/local/bazel/3.0.0/lib/bazel/bin/bazel-complete.bash
 
-    username@DESKTOP-TMVLBJ1:~$ /usr/local/bazel/2.0.0/lib/bazel/bin/bazel version && \
-    alias bazel='/usr/local/bazel/2.0.0/lib/bazel/bin/bazel'
+    username@DESKTOP-TMVLBJ1:~$ /usr/local/bazel/3.0.0/lib/bazel/bin/bazel version && \
+    alias bazel='/usr/local/bazel/3.0.0/lib/bazel/bin/bazel'
     ```
 
 6.  Checkout MediaPipe repository.