Android demo: add clarifications to README.md

andrewharp · tensorflower-gardener · commit fe37c8c2178e · 2017-02-22T11:34:03.000-08:00
Change: 148243198
diff --git a/tensorflow/examples/android/README.md b/tensorflow/examples/android/README.md
@@ -10,7 +10,8 @@ TensorFlow in mobile applications.
 
 Inference is done using the [TensorFlow Android Inference Interface](../../../tensorflow/contrib/android),
 which may be built separately if you want a standalone library to drop into your
-existing application.
+existing application. Object tracking and YUV -> RGB conversion is handled by
+libtensorflow_demo.so.
 
 A device running Android 5.0 (API 21) or higher is required to run the demo due
 to the use of the camera2 API, although the native libraries themselves can run
@@ -40,7 +41,7 @@ on API >= 14 devices.
 If you just want the fastest path to trying the demo, you may download the
 nightly build
 [here](https://ci.tensorflow.org/view/Nightly/job/nightly-android/). Expand the
-"View" and then the "out" folders under "Last Successful Artifacts to find
+"View" and then the "out" folders under "Last Successful Artifacts" to find
 tensorflow_demo.apk. Also available are precompiled native libraries that you
 may drop into your own applications. See
 [tensorflow/contrib/android/README.md](../../../tensorflow/contrib/android/README.md)
@@ -71,6 +72,12 @@ protobuf compilation.
 
 ### Bazel
 
+NOTE: Bazel does not currently support building for Android on Windows. Full
+support for gradle/cmake builds is coming soon, but in the meantime we suggest
+that Windows users download the
+[prebuilt binaries](https://ci.tensorflow.org/view/Nightly/job/nightly-android/)
+instead.
+
 ##### Install Bazel and Android Prerequisites
 
 Bazel is the primary build system for TensorFlow. To build with Bazel,
@@ -84,7 +91,8 @@ it and the Android NDK and SDK must be installed on your system.
         [here](https://developer.android.com/tools/revisions/build-tools.html),
         or alternatively as part of
         [Android Studio](https://developer.android.com/studio/index.html). Build
-        tools API >= 23 is required to build the TF Android demo.
+        tools API >= 23 is required to build the TF Android demo (though it will
+        run on API >= 21 devices).
 
 ##### Edit WORKSPACE
 
@@ -109,7 +117,7 @@ in `WORKSPACE` during the build process.
 **Optional**: If you wish to place the models in your assets manually (E.g. for
 non-Bazel builds), remove all of the `model_files` entries from the `assets`
 list in `tensorflow_demo` found in the `[BUILD](BUILD)` file. Then download
-and extract the archives yourself to the `assets` directory in thesource tree:
+and extract the archives yourself to the `assets` directory in the source tree:
 
 ```bash
 BASE_URL=https://storage.googleapis.com/download.tensorflow.org/models
