getSupportedCameraIds api method introduced on android, fixes #145

tanersener · May 28, 2019 · 0733ca2 · 0733ca2
1 parent f16edb5
commit 0733ca2
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Showing 2 changed files with 57 additions and 2 deletions.
diff --git a/android/app/src/main/java/com/arthenica/mobileffmpeg/Config.java b/android/app/src/main/java/com/arthenica/mobileffmpeg/Config.java
@@ -20,16 +20,22 @@
 package com.arthenica.mobileffmpeg;
 
 import android.content.Context;
+import android.hardware.camera2.CameraAccessException;
+import android.hardware.camera2.CameraCharacteristics;
+import android.hardware.camera2.CameraManager;
+import android.hardware.camera2.CameraMetadata;
 import android.os.Build;
 import android.util.Log;
 
 import java.io.File;
 import java.io.FileOutputStream;
 import java.io.IOException;
+import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
 import java.util.concurrent.atomic.AtomicReference;
 
+import static android.content.Context.CAMERA_SERVICE;
 import static com.arthenica.mobileffmpeg.FFmpeg.getBuildDate;
 import static com.arthenica.mobileffmpeg.FFmpeg.getVersion;
 
@@ -438,7 +444,7 @@ public static List<String> getExternalLibraries() {
      *
      * <p>Please note that creator is responsible of closing created pipes.
      *
-     * @param context application context to access application data
+     * @param context application context
      * @return the full path of named pipe
      */
     public static String registerNewFFmpegPipe(final Context context) {
@@ -535,6 +541,40 @@ static String getSystemCommandOutput() {
         return systemCommandOutputReference.get().toString();
     }
 
+    /**
+     * Returns the list of camera ids supported.
+     *
+     * @param context application context
+     * @return the list of camera ids supported or an empty list if no supported camera is found
+     */
+    public static List<String> getSupportedCameraIds(final Context context) {
+        final List<String> detectedCameraIdList = new ArrayList<>();
+
+        if (Build.VERSION.SDK_INT > Build.VERSION_CODES.LOLLIPOP) {
+            try {
+                final CameraManager manager = (CameraManager) context.getSystemService(CAMERA_SERVICE);
+                if (manager != null) {
+                    final String[] cameraIdList = manager.getCameraIdList();
+
+                    for (String cameraId : cameraIdList) {
+                        final CameraCharacteristics chars = manager.getCameraCharacteristics(cameraId);
+                        final Integer cameraSupport = chars.get(CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL);
+
+                        if (cameraSupport != null && cameraSupport == CameraMetadata.INFO_SUPPORTED_HARDWARE_LEVEL_LEGACY) {
+                            Log.d(TAG, "Detected camera with id " + cameraId + " has not supported LEGACY hardware level.");
+                        } else if (cameraSupport != null) {
+                            detectedCameraIdList.add(cameraId);
+                        }
+                    }
+                }
+            } catch (final CameraAccessException e) {
+                Log.w(TAG, "Detecting camera ids failed.", e);
+            }
+        }
+
+        return detectedCameraIdList;
+    }
+
     /**
      * <p>Enables native redirection. Necessary for log and statistics callback functions.
      */

diff --git a/android/test-app/src/main/java/com/arthenica/mobileffmpeg/test/MainActivity.java b/android/test-app/src/main/java/com/arthenica/mobileffmpeg/test/MainActivity.java
@@ -49,6 +49,7 @@
 import java.io.IOException;
 import java.io.InputStream;
 import java.util.HashMap;
+import java.util.List;
 import java.util.Queue;
 import java.util.concurrent.Callable;
 import java.util.concurrent.ConcurrentLinkedQueue;
@@ -139,6 +140,9 @@ protected void onCreate(final Bundle savedInstanceState) {
         } catch (final IOException e) {
             Log.e(TAG, "Font registration failed.", e);
         }
+
+        Log.d(TAG, "Listing supported camera ids.");
+        listSupportedCameraIds();
     }
 
     @Override
@@ -152,7 +156,7 @@ protected void onDestroy() {
      * <p>Starts a new asynchronous FFmpeg operation with arguments provided.
      *
      * @param executeCallback callback function to receive result of this execution
-     * @param arguments   FFmpeg command options/arguments
+     * @param arguments       FFmpeg command options/arguments
      */
     public static void executeAsync(final ExecuteCallback executeCallback, final String arguments) {
         final AsyncExecuteTask asyncCommandTask = new AsyncExecuteTask(executeCallback);
@@ -252,4 +256,15 @@ protected void registerAppFont() throws IOException {
         // Config.setFontDirectory(this, cacheDirectory.getAbsolutePath(), null);
     }
 
+    protected void listSupportedCameraIds() {
+        final List<String> supportedCameraIds = Config.getSupportedCameraIds(this);
+        if (supportedCameraIds.size() == 0) {
+            android.util.Log.d(MainActivity.TAG, "No supported cameras found.");
+        } else {
+            for (String supportedCameraId : supportedCameraIds) {
+                android.util.Log.d(MainActivity.TAG, "Supported camera detected: " + supportedCameraId);
+            }
+        }
+    }
+
 }