add camera1 zoom by value

Author: pedroSG94

README.md

@@ -51,7 +51,7 @@ allprojects {
   }
 }
 dependencies {
-  implementation 'com.github.pedroSG94.rtmp-rtsp-stream-client-java:rtplibrary:2.1.5'
+  implementation 'com.github.pedroSG94.rtmp-rtsp-stream-client-java:rtplibrary:2.1.6'
 }
 
 ```

build.gradle

@@ -3,8 +3,8 @@
 buildscript {
   ext.kotlin_version = '1.6.10'
   ext.library_group = "com.github.pedroSG94"
-  ext.version_code = 215
-  ext.version_name = "2.1.5"
+  ext.version_code = 216
+  ext.version_name = "2.1.6"
 
   repositories {
     google()

encoder/src/main/java/com/pedro/encoder/input/video/Camera1ApiManager.java

@@ -216,6 +216,54 @@ public void setPreviewOrientation(final int orientation) {
     }
   }
 
+  public void setZoom(int level) {
+    try {
+      if (camera != null && running && camera.getParameters() != null && camera.getParameters()
+          .isZoomSupported()) {
+        android.hardware.Camera.Parameters params = camera.getParameters();
+        int maxZoom = params.getMaxZoom();
+        if (level > maxZoom) level = maxZoom;
+        else if (level < getMinZoom()) level = getMinZoom();
+        params.setZoom(level);
+        camera.setParameters(params);
+      }
+    } catch (Exception e) {
+      Log.e(TAG, "Error", e);
+    }
+  }
+
+  public int getZoom() {
+    try {
+      if (camera != null && running && camera.getParameters() != null && camera.getParameters()
+          .isZoomSupported()) {
+        android.hardware.Camera.Parameters params = camera.getParameters();
+        return params.getZoom();
+      } else {
+        return getMinZoom();
+      }
+    } catch (Exception e) {
+      Log.e(TAG, "Error", e);
+      return getMinZoom();
+    }
+  }
+
+  public int getMaxZoom() {
+    try {
+      if (camera != null && running && camera.getParameters() != null && camera.getParameters()
+          .isZoomSupported()) {
+        android.hardware.Camera.Parameters params = camera.getParameters();
+        return params.getMaxZoom();
+      } else {
+        return getMinZoom();
+      }
+    } catch (Exception e) {
+      Log.e(TAG, "Error", e);
+      return getMinZoom();
+    }
+  }
+
+  public int getMinZoom() { return 0; }
+
   public void setZoom(MotionEvent event) {
     try {
       if (camera != null && running && camera.getParameters() != null && camera.getParameters()

rtplibrary/src/main/java/com/pedro/rtplibrary/base/Camera1Base.java

@@ -561,6 +561,44 @@ public void setZoom(MotionEvent event) {
     cameraManager.setZoom(event);
   }
 
+  /**
+   * Set zoomIn or zoomOut to camera.
+   * Use this method if you use a zoom slider.
+   *
+   * @param level Expected to be >= 1 and <= max zoom level
+   * @see Camera2Base#getZoom()
+   */
+  public void setZoom(int level) {
+    cameraManager.setZoom(level);
+  }
+
+  /**
+   * Return current zoom level
+   *
+   * @return current zoom level
+   */
+  public float getZoom() {
+    return cameraManager.getZoom();
+  }
+
+  /**
+   * Return max zoom level
+   *
+   * @return max zoom level range
+   */
+  public int getMaxZoom() {
+    return cameraManager.getMaxZoom();
+  }
+
+  /**
+   * Return min zoom level
+   *
+   * @return min zoom level range
+   */
+  public int getMinZoom() {
+    return cameraManager.getMinZoom();
+  }
+
   @RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN_MR2)
   public void startStreamAndRecord(String url, String path, RecordController.Listener listener) throws IOException {
     startStream(url);