Rename SessionType to Mode. takePicture fails when Mode == VIDEO

MIGRATION.md

@@ -17,3 +17,8 @@
 - onPictureTaken(): now passing a PictureResult. Use PictureResult.getJpeg() to access the jpeg stream.
 - CameraUtils.BitmapCallback: has been moved in a separate BitmapCallback class.
 - isCapturingVideo(): renamed to isTakingVideo().
+- SessionType: renamed to Mode. This means that setSessionType() and cameraSessionType are renamed to
+  setMode() and cameraMode.
+- CameraOptions.isVideoSnapshotSupported(): removed, this would be ambiguous now. While in video
+  mode, you can only use takePictureSnapshot(), not takePicture().
+- takePicture(): will now throw an exception if called when Mode == Mode.VIDEO. You can only take snapshots.

README.md

@@ -410,8 +410,8 @@ Most camera parameters can be controlled through XML attributes or linked method
     app:cameraFacing="back"
     app:cameraFlash="off"
     app:cameraGrid="off"
-    app:cameraSessionType="picture"
     app:cameraVideoQuality="max480p"
+    app:cameraMode="picture"
     app:cameraVideoCodec="deviceDefault"
     app:cameraWhiteBalance="auto"
     app:cameraHdr="off"
@@ -423,7 +423,7 @@ Most camera parameters can be controlled through XML attributes or linked method
 
 |XML Attribute|Method|Values|Default Value|
 |-------------|------|------|-------------|
-|[`cameraSessionType`](#camerasessiontype)|`setSessionType()`|`picture` `video`|`picture`|
+|[`cameraMode`](#cameramode)|`setMode()`|`picture` `video`|`picture`|
 |[`cameraFacing`](#camerafacing)|`setFacing()`|`back` `front`|`back`|
 |[`cameraFlash`](#cameraflash)|`setFlash()`|`off` `on` `auto` `torch`|`off`|
 |[`cameraGrid`](#cameragrid)|`setGrid()`|`off` `draw3x3` `draw4x4` `drawPhi`|`off`|
@@ -436,21 +436,21 @@ Most camera parameters can be controlled through XML attributes or linked method
 |[`cameraVideoMaxSize`](#cameravideomaxsize)|`setVideoMaxSize()`|number|`0`|
 |[`cameraVideoMaxDuration`](#cameravideomaxduration)|`setVideoMaxDuration()`|number|`0`|
 
-#### cameraSessionType
+#### cameraMode
 
 What to capture - either picture or video. This has a couple of consequences:
 
 - Sizing: picture and preview size are chosen among the available picture or video sizes,
   depending on the flag. The picture size is chosen according to the given [size selector](#picture-size).
   When `video`, in addition, we try to match the `videoQuality` aspect ratio.
-- Picture capturing: while recording a video, image capturing might work, but it is not guaranteed
+- Capturing: while in picture mode, `takeVideo` will throw an exception.
-  (it's device dependent)
+- Capturing: while in video mode, `takePicture` will throw an exception, but picture snapshots are supported.
 - Permission behavior: when requesting a `video` session, the record audio permission will be requested.
   If this is needed, the audio permission should be added to your manifest or the app will crash.
 
 ```java
-cameraView.setSessionType(SessionType.PICTURE);
+cameraView.setMode(Mode.PICTURE);
-cameraView.setSessionType(SessionType.VIDEO);
+cameraView.setMode(Mode.VIDEO);
 ```
 
 #### cameraFacing

cameraview/src/androidTest/java/com/otaliastudios/cameraview/CameraOptions1Test.java

@@ -35,7 +35,6 @@ public class CameraOptions1Test extends BaseTest {
         assertTrue(o.getSupportedHdr().isEmpty());
         assertFalse(o.isAutoFocusSupported());
         assertFalse(o.isExposureCorrectionSupported());
-        assertFalse(o.isVideoSnapshotSupported());
         assertFalse(o.isZoomSupported());
         assertEquals(o.getExposureCorrectionMaxValue(), 0f, 0);
         assertEquals(o.getExposureCorrectionMinValue(), 0f, 0);
@@ -135,11 +134,11 @@ public class CameraOptions1Test extends BaseTest {
 
         Collection<Grid> grids = o.getSupportedControls(Grid.class);
         Collection<VideoQuality> video = o.getSupportedControls(VideoQuality.class);
-        Collection<SessionType> sessions = o.getSupportedControls(SessionType.class);
+        Collection<Mode> sessions = o.getSupportedControls(Mode.class);
         Collection<Audio> audio = o.getSupportedControls(Audio.class);
         assertEquals(grids.size(), Grid.values().length);
         assertEquals(video.size(), VideoQuality.values().length);
-        assertEquals(sessions.size(), SessionType.values().length);
+        assertEquals(sessions.size(), Mode.values().length);
         assertEquals(audio.size(), Audio.values().length);
     }
 
@@ -223,7 +222,6 @@ public class CameraOptions1Test extends BaseTest {
         when(params.isZoomSupported()).thenReturn(true);
         when(params.getSupportedFocusModes()).thenReturn(Arrays.asList(Camera.Parameters.FOCUS_MODE_AUTO));
         CameraOptions o = new CameraOptions(params, false);
-        assertTrue(o.isVideoSnapshotSupported());
         assertTrue(o.isZoomSupported());
         assertTrue(o.isAutoFocusSupported());
     }

cameraview/src/androidTest/java/com/otaliastudios/cameraview/CameraViewCallbacksTest.java

@@ -2,8 +2,6 @@ package com.otaliastudios.cameraview;
 
 
 import android.content.Context;
-import android.graphics.Bitmap;
-import android.graphics.BitmapFactory;
 import android.graphics.PointF;
 import android.support.test.filters.MediumTest;
 import android.support.test.runner.AndroidJUnit4;
@@ -63,7 +61,7 @@ public class CameraViewCallbacksTest extends BaseTest {
                     }
 
                     @Override
-                    protected boolean checkPermissions(SessionType sessionType, Audio audio) {
+                    protected boolean checkPermissions(Mode mode, Audio audio) {
                         return true;
                     }
                 };

cameraview/src/androidTest/java/com/otaliastudios/cameraview/CameraViewTest.java

@@ -50,7 +50,7 @@ public class CameraViewTest extends BaseTest {
                     }
 
                     @Override
-                    protected boolean checkPermissions(SessionType sessionType, Audio audio) {
+                    protected boolean checkPermissions(Mode mode, Audio audio) {
                         return hasPermissions;
                     }
                 };
@@ -85,7 +85,7 @@ public class CameraViewTest extends BaseTest {
         assertEquals(cameraView.getFacing(), Facing.DEFAULT);
         assertEquals(cameraView.getGrid(), Grid.DEFAULT);
         assertEquals(cameraView.getWhiteBalance(), WhiteBalance.DEFAULT);
-        assertEquals(cameraView.getSessionType(), SessionType.DEFAULT);
+        assertEquals(cameraView.getMode(), Mode.DEFAULT);
         assertEquals(cameraView.getHdr(), Hdr.DEFAULT);
         assertEquals(cameraView.getAudio(), Audio.DEFAULT);
         assertEquals(cameraView.getVideoQuality(), VideoQuality.DEFAULT);
@@ -503,11 +503,11 @@ public class CameraViewTest extends BaseTest {
     }
 
     @Test
-    public void testSessionType() {
+    public void testMode() {
-        cameraView.set(SessionType.VIDEO);
+        cameraView.set(Mode.VIDEO);
-        assertEquals(cameraView.getSessionType(), SessionType.VIDEO);
+        assertEquals(cameraView.getMode(), Mode.VIDEO);
-        cameraView.set(SessionType.PICTURE);
+        cameraView.set(Mode.PICTURE);
-        assertEquals(cameraView.getSessionType(), SessionType.PICTURE);
+        assertEquals(cameraView.getMode(), Mode.PICTURE);
     }
 
     @Test

cameraview/src/androidTest/java/com/otaliastudios/cameraview/IntegrationTest.java

@@ -37,7 +37,7 @@ import static org.mockito.Mockito.mock;
  */
 @RunWith(AndroidJUnit4.class)
 @MediumTest
-@Ignore
+// @Ignore
 public class IntegrationTest extends BaseTest {
 
     @Rule
@@ -231,8 +231,8 @@ public class IntegrationTest extends BaseTest {
     }
 
     @Test
-    public void testSetSessionType() throws Exception {
+    public void testSetMode() throws Exception {
-        camera.setSessionType(SessionType.PICTURE);
+        camera.setMode(Mode.PICTURE);
         waitForOpen(true);
 
         // set session type should call stop and start again.
@@ -240,11 +240,11 @@ public class IntegrationTest extends BaseTest {
         doCountDown(latch).when(listener).onCameraOpened(any(CameraOptions.class));
         doCountDown(latch).when(listener).onCameraClosed();
 
-        camera.setSessionType(SessionType.VIDEO);
+        camera.setMode(Mode.VIDEO);
 
         boolean did = latch.await(2, TimeUnit.SECONDS);
-        assertTrue("Handles setSessionType while active", did);
+        assertTrue("Handles setMode while active", did);
-        assertEquals(camera.getSessionType(), SessionType.VIDEO);
+        assertEquals(camera.getMode(), Mode.VIDEO);
     }
 
     //endregion
@@ -391,7 +391,7 @@ public class IntegrationTest extends BaseTest {
     public void testSetVideoQuality_whileRecording() throws Throwable {
         // Can't run on Travis, MediaRecorder not supported.
         // Error while starting MediaRecorder. java.lang.RuntimeException: start failed.
-        camera.setSessionType(SessionType.VIDEO);
+        camera.setMode(Mode.VIDEO);
         waitForVideoQuality(VideoQuality.HIGHEST);
         waitForOpen(true);
         waitForVideoStart();
@@ -400,8 +400,8 @@ public class IntegrationTest extends BaseTest {
     }
 
     @Test
-    public void testSetVideoQuality_whileInPictureSessionType() {
+    public void testSetVideoQuality_whileInPictureMode() {
-        camera.setSessionType(SessionType.PICTURE);
+        camera.setMode(Mode.PICTURE);
         waitForVideoQuality(VideoQuality.HIGHEST);
         waitForOpen(true);
         waitForVideoQuality(VideoQuality.LOWEST);
@@ -435,7 +435,7 @@ public class IntegrationTest extends BaseTest {
         // Fails on Travis. Some emulators can't deal with MediaRecorder
         // Error while starting MediaRecorder. java.lang.RuntimeException: start failed.
         // as documented. This works locally though.
-        camera.setSessionType(SessionType.PICTURE);
+        camera.setMode(Mode.PICTURE);
         waitForOpen(true);
         waitForVideoStart();
         waitForUiException();
@@ -446,7 +446,7 @@ public class IntegrationTest extends BaseTest {
         // Fails on Travis. Some emulators can't deal with MediaRecorder,
         // Error while starting MediaRecorder. java.lang.RuntimeException: start failed.
         // as documented. This works locally though.
-        camera.setSessionType(SessionType.VIDEO);
+        camera.setMode(Mode.VIDEO);
         waitForOpen(true);
         camera.takeVideo(null, 4000);
         waitForVideoEnd(true);
@@ -454,7 +454,7 @@ public class IntegrationTest extends BaseTest {
 
     @Test
     public void testEndVideo_withoutStarting() {
-        camera.setSessionType(SessionType.VIDEO);
+        camera.setMode(Mode.VIDEO);
         waitForOpen(true);
         camera.stopVideo();
         waitForVideoEnd(false);
@@ -462,7 +462,7 @@ public class IntegrationTest extends BaseTest {
 
     @Test
     public void testEndVideo_withMaxSize() {
-        camera.setSessionType(SessionType.VIDEO);
+        camera.setMode(Mode.VIDEO);
         camera.setVideoMaxSize(500*1000); // 0.5 mb
         waitForOpen(true);
         waitForVideoStart();
@@ -471,7 +471,7 @@ public class IntegrationTest extends BaseTest {
 
     @Test
     public void testEndVideo_withMaxDuration() {
-        camera.setSessionType(SessionType.VIDEO);
+        camera.setMode(Mode.VIDEO);
         camera.setVideoMaxDuration(4000);
         waitForOpen(true);
         waitForVideoStart();
@@ -540,6 +540,14 @@ public class IntegrationTest extends BaseTest {
         assertFalse(result.isSnapshot());
     }
 
+    @Test(expected = RuntimeException.class)
+    public void testCapturePicture_whileInVideoMode() throws Throwable {
+        camera.setMode(Mode.VIDEO);
+        waitForOpen(true);
+        camera.takePicture();
+        waitForUiException();
+    }
+
     @Test
     public void testCaptureSnapshot_beforeStarted() {
         camera.takePictureSnapshot();

cameraview/src/androidTest/java/com/otaliastudios/cameraview/MockCameraController.java

@@ -72,8 +72,8 @@ public class MockCameraController extends CameraController {
     }
 
     @Override
-    void setSessionType(SessionType sessionType) {
+    void setMode(Mode mode) {
-        mSessionType = sessionType;
+        mMode = mode;
     }
 
     @Override

cameraview/src/main/java/com/otaliastudios/cameraview/Camera1.java

@@ -187,7 +187,7 @@ class Camera1 extends CameraController implements Camera.PreviewCallback, Camera
             mergeWhiteBalance(params, WhiteBalance.DEFAULT);
             mergeHdr(params, Hdr.DEFAULT);
             mergePlaySound(mPlaySounds);
-            params.setRecordingHint(mSessionType == SessionType.VIDEO);
+            params.setRecordingHint(mMode == Mode.VIDEO);
             mCamera.setParameters(params);
 
             // Try starting preview.
@@ -284,9 +284,9 @@ class Camera1 extends CameraController implements Camera.PreviewCallback, Camera
     }
 
     @Override
-    void setSessionType(SessionType sessionType) {
+    void setMode(Mode mode) {
-        if (sessionType != mSessionType) {
+        if (mode != mMode) {
-            mSessionType = sessionType;
+            mMode = mode;
             schedule(null, true, new Runnable() {
                 @Override
                 public void run() {
@@ -441,7 +441,7 @@ class Camera1 extends CameraController implements Camera.PreviewCallback, Camera
     private void applyDefaultFocus(Camera.Parameters params) {
         List<String> modes = params.getSupportedFocusModes();
 
-        if (mSessionType == SessionType.VIDEO &&
+        if (mMode == Mode.VIDEO &&
                 modes.contains(Camera.Parameters.FOCUS_MODE_CONTINUOUS_VIDEO)) {
             params.setFocusMode(Camera.Parameters.FOCUS_MODE_CONTINUOUS_VIDEO);
             return;
@@ -478,7 +478,7 @@ class Camera1 extends CameraController implements Camera.PreviewCallback, Camera
                     throw new IllegalStateException("Can't change video quality while recording a video.");
                 }
 
-                if (mSessionType == SessionType.VIDEO) {
+                if (mMode == Mode.VIDEO) {
                     // Change capture size to a size that fits the video aspect ratio.
                     Size oldSize = mPictureSize;
                     mPictureSize = computePictureSize();
@@ -503,11 +503,14 @@ class Camera1 extends CameraController implements Camera.PreviewCallback, Camera
         schedule(null, true, new Runnable() {
             @Override
             public void run() {
+                if (mMode == Mode.VIDEO) {
+                    throw new IllegalStateException("Can't take hq pictures while in VIDEO mode");
+                }
+
                 LOG.v("takePicture: performing.", mIsCapturingImage);
                 if (mIsCapturingImage) return;
-                if (mIsTakingVideo && !mCameraOptions.isVideoSnapshotSupported()) return;
-
                 mIsCapturingImage = true;
+
                 final int sensorToOutput = offset(REF_SENSOR, REF_OUTPUT);
                 final Size outputSize = getPictureSize(REF_OUTPUT);
                 Camera.Parameters params = mCamera.getParameters();
@@ -556,15 +559,15 @@ class Camera1 extends CameraController implements Camera.PreviewCallback, Camera
         schedule(null, true, new Runnable() {
             @Override
             public void run() {
-                LOG.v("takePictureSnapshot: performing.", mIsCapturingImage);
-                if (mIsCapturingImage) return;
-                // This won't work while capturing a video.
-                // Switch to takePicture.
-                // TODO v2: what to do here?
                 if (mIsTakingVideo) {
-                    takePicture();
+                    // TODO v2: what to do here?
+                    // This won't work while capturing a video.
+                    // But we want it to work.
                     return;
                 }
+
+                LOG.v("takePictureSnapshot: performing.", mIsCapturingImage);
+                if (mIsCapturingImage) return;
                 mIsCapturingImage = true;
                 mCamera.setOneShotPreviewCallback(new Camera.PreviewCallback() {
                     @Override
@@ -654,74 +657,74 @@ class Camera1 extends CameraController implements Camera.PreviewCallback, Camera
         schedule(mStartVideoTask, true, new Runnable() {
             @Override
             public void run() {
+                if (mMode == Mode.PICTURE) {
+                    throw new IllegalStateException("Can't record video while in PICTURE mode");
+                }
+
                 if (mIsTakingVideo) return;
-                if (mSessionType == SessionType.VIDEO) {
+                mIsTakingVideo = true;
-                    mIsTakingVideo = true;
+
-
+                // Create the video result
-                    // Create the video result
+                CamcorderProfile profile = getCamcorderProfile();
-                    CamcorderProfile profile = getCamcorderProfile();
+                Size videoSize = new Size(profile.videoFrameWidth, profile.videoFrameHeight);
-                    Size videoSize = new Size(profile.videoFrameWidth, profile.videoFrameHeight);
+                mVideoResult = new VideoResult();
-                    mVideoResult = new VideoResult();
+                mVideoResult.file = videoFile;
-                    mVideoResult.file = videoFile;
+                mVideoResult.isSnapshot = false;
-                    mVideoResult.isSnapshot = false;
+                mVideoResult.codec = mVideoCodec;
-                    mVideoResult.codec = mVideoCodec;
+                mVideoResult.location = mLocation;
-                    mVideoResult.location = mLocation;
+                mVideoResult.rotation = offset(REF_SENSOR, REF_OUTPUT);
-                    mVideoResult.rotation = offset(REF_SENSOR, REF_OUTPUT);
+                mVideoResult.size = flip(REF_SENSOR, REF_OUTPUT) ? videoSize.flip() : videoSize;
-                    mVideoResult.size = flip(REF_SENSOR, REF_OUTPUT) ? videoSize.flip() : videoSize;
+
-
+                // Initialize the media recorder
-                    // Initialize the media recorder
+                mCamera.unlock();
-                    mCamera.unlock();
+                mMediaRecorder = new MediaRecorder();
-                    mMediaRecorder = new MediaRecorder();
+                mMediaRecorder.setCamera(mCamera);
-                    mMediaRecorder.setCamera(mCamera);
+                mMediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
-                    mMediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
+                if (mAudio == Audio.ON) {
-                    if (mAudio == Audio.ON) {
+                    // Must be called before setOutputFormat.
-                        // Must be called before setOutputFormat.
+                    mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.DEFAULT);
-                        mMediaRecorder.setAudioSource(MediaRecorder.AudioSource.DEFAULT);
+                }
-                    }
+                mMediaRecorder.setOutputFormat(profile.fileFormat);
-                    mMediaRecorder.setOutputFormat(profile.fileFormat);
+                mMediaRecorder.setVideoFrameRate(profile.videoFrameRate);
-                    mMediaRecorder.setVideoFrameRate(profile.videoFrameRate);
+                mMediaRecorder.setVideoSize(profile.videoFrameWidth, profile.videoFrameHeight);
-                    mMediaRecorder.setVideoSize(profile.videoFrameWidth, profile.videoFrameHeight);
+                mMediaRecorder.setVideoEncoder(mMapper.map(mVideoCodec));
-                    mMediaRecorder.setVideoEncoder(mMapper.map(mVideoCodec));
+                mMediaRecorder.setVideoEncodingBitRate(profile.videoBitRate);
-                    mMediaRecorder.setVideoEncodingBitRate(profile.videoBitRate);
+                if (mAudio == Audio.ON) {
-                    if (mAudio == Audio.ON) {
+                    mMediaRecorder.setAudioChannels(profile.audioChannels);
-                        mMediaRecorder.setAudioChannels(profile.audioChannels);
+                    mMediaRecorder.setAudioSamplingRate(profile.audioSampleRate);
-                        mMediaRecorder.setAudioSamplingRate(profile.audioSampleRate);
+                    mMediaRecorder.setAudioEncoder(profile.audioCodec);
-                        mMediaRecorder.setAudioEncoder(profile.audioCodec);
+                    mMediaRecorder.setAudioEncodingBitRate(profile.audioBitRate);
-                        mMediaRecorder.setAudioEncodingBitRate(profile.audioBitRate);
+                }
-                    }
+                if (mLocation != null) {
-                    if (mLocation != null) {
+                    mMediaRecorder.setLocation(
-                        mMediaRecorder.setLocation(
+                            (float) mLocation.getLatitude(),
-                                (float) mLocation.getLatitude(),
+                            (float) mLocation.getLongitude());
-                                (float) mLocation.getLongitude());
+                }
-                    }
+                mMediaRecorder.setOutputFile(mVideoResult.getFile().getAbsolutePath());
-                    mMediaRecorder.setOutputFile(mVideoResult.getFile().getAbsolutePath());
+                mMediaRecorder.setOrientationHint(mVideoResult.getRotation());
-                    mMediaRecorder.setOrientationHint(mVideoResult.getRotation());
+                mMediaRecorder.setMaxFileSize(mVideoMaxSize);
-                    mMediaRecorder.setMaxFileSize(mVideoMaxSize);
+                mMediaRecorder.setMaxDuration(mVideoMaxDuration);
-                    mMediaRecorder.setMaxDuration(mVideoMaxDuration);
+                mMediaRecorder.setOnInfoListener(new MediaRecorder.OnInfoListener() {
-                    mMediaRecorder.setOnInfoListener(new MediaRecorder.OnInfoListener() {
+                    @Override
-                        @Override
+                    public void onInfo(MediaRecorder mediaRecorder, int what, int extra) {
-                        public void onInfo(MediaRecorder mediaRecorder, int what, int extra) {
+                        switch (what) {
-                            switch (what) {
+                            case MediaRecorder.MEDIA_RECORDER_INFO_MAX_DURATION_REACHED:
-                                case MediaRecorder.MEDIA_RECORDER_INFO_MAX_DURATION_REACHED:
+                            case MediaRecorder.MEDIA_RECORDER_INFO_MAX_FILESIZE_REACHED:
-                                case MediaRecorder.MEDIA_RECORDER_INFO_MAX_FILESIZE_REACHED:
+                                stopVideoImmediately();
-                                    stopVideoImmediately();
+                                break;
-                                    break;
-                            }
                         }
-                    });
-                    // Not needed. mMediaRecorder.setPreviewDisplay(mPreview.getSurface());
-
-                    try {
-                        mMediaRecorder.prepare();
-                        mMediaRecorder.start();
-                    } catch (Exception e) {
-                        LOG.e("Error while starting MediaRecorder. Swallowing.", e);
-                        mVideoResult = null;
-                        mCamera.lock();
-                        stopVideoImmediately();
                     }
-                } else {
+                });
-                    throw new IllegalStateException("Can't record video while session type is picture");
+                // Not needed. mMediaRecorder.setPreviewDisplay(mPreview.getSurface());
+
+                try {
+                    mMediaRecorder.prepare();
+                    mMediaRecorder.start();
+                } catch (Exception e) {
+                    LOG.e("Error while starting MediaRecorder. Swallowing.", e);
+                    mVideoResult = null;
+                    mCamera.lock();
+                    stopVideoImmediately();
                 }
             }
         });

cameraview/src/main/java/com/otaliastudios/cameraview/Camera2.java

@@ -36,7 +36,7 @@ class Camera2 extends CameraController {
     }
 
     @Override
-    void setSessionType(SessionType sessionType) {
+    void setMode(Mode mode) {
 
     }
 

cameraview/src/main/java/com/otaliastudios/cameraview/CameraController.java

@@ -44,7 +44,7 @@ abstract class CameraController implements
     protected WhiteBalance mWhiteBalance;
     protected VideoQuality mVideoQuality;
     protected VideoCodec mVideoCodec;
-    protected SessionType mSessionType;
+    protected Mode mMode;
     protected Hdr mHdr;
     protected Location mLocation;
     protected Audio mAudio;
@@ -299,7 +299,7 @@ abstract class CameraController implements
     //region Abstract setters and APIs
 
     // Should restart the session if active.
-    abstract void setSessionType(SessionType sessionType);
+    abstract void setMode(Mode mode);
 
     // Should restart the session if active.
     abstract void setFacing(Facing facing);
@@ -377,8 +377,8 @@ abstract class CameraController implements
         return mVideoMaxDuration;
     }
 
-    final SessionType getSessionType() {
+    final Mode getMode() {
-        return mSessionType;
+        return mMode;
     }
 
     final Hdr getHdr() {
@@ -479,7 +479,7 @@ abstract class CameraController implements
         boolean flip = flip(REF_SENSOR, REF_VIEW);
         SizeSelector selector;
 
-        if (mSessionType == SessionType.PICTURE) {
+        if (mMode == Mode.PICTURE) {
             selector = SizeSelectors.or(mPictureSizeSelector, SizeSelectors.biggest());
         } else {
             // The Camcorder internally checks for cameraParameters.getSupportedVideoSizes() etc.

cameraview/src/main/java/com/otaliastudios/cameraview/CameraOptions.java

@@ -148,8 +148,8 @@ public class CameraOptions {
             return (Collection<T>) Arrays.asList(Grid.values());
         } else if (controlClass.equals(Hdr.class)) {
             return (Collection<T>) getSupportedHdr();
-        } else if (controlClass.equals(SessionType.class)) {
+        } else if (controlClass.equals(Mode.class)) {
-            return (Collection<T>) Arrays.asList(SessionType.values());
+            return (Collection<T>) Arrays.asList(Mode.values());
         } else if (controlClass.equals(VideoQuality.class)) {
             return (Collection<T>) Arrays.asList(VideoQuality.values());
         } else if (controlClass.equals(WhiteBalance.class)) {
@@ -255,17 +255,6 @@ public class CameraOptions {
     }
 
 
-    /**
-     * Whether video snapshots are supported. If this is false, taking pictures
-     * while recording a video will have no effect.
-     *
-     * @return whether video snapshot is supported.
-     */
-    public boolean isVideoSnapshotSupported() {
-        return videoSnapshotSupported;
-    }
-
-
     /**
      * Whether auto focus is supported. This means you can map gestures to
      * {@link GestureAction#FOCUS} or {@link GestureAction#FOCUS_WITH_MARKER}

cameraview/src/main/java/com/otaliastudios/cameraview/CameraView.java

@@ -101,7 +101,7 @@ public class CameraView extends FrameLayout implements LifecycleObserver {
         Grid grid = Grid.fromValue(a.getInteger(R.styleable.CameraView_cameraGrid, Grid.DEFAULT.value()));
         WhiteBalance whiteBalance = WhiteBalance.fromValue(a.getInteger(R.styleable.CameraView_cameraWhiteBalance, WhiteBalance.DEFAULT.value()));
         VideoQuality videoQuality = VideoQuality.fromValue(a.getInteger(R.styleable.CameraView_cameraVideoQuality, VideoQuality.DEFAULT.value()));
-        SessionType sessionType = SessionType.fromValue(a.getInteger(R.styleable.CameraView_cameraSessionType, SessionType.DEFAULT.value()));
+        Mode mode = Mode.fromValue(a.getInteger(R.styleable.CameraView_cameraMode, Mode.DEFAULT.value()));
         Hdr hdr = Hdr.fromValue(a.getInteger(R.styleable.CameraView_cameraHdr, Hdr.DEFAULT.value()));
         Audio audio = Audio.fromValue(a.getInteger(R.styleable.CameraView_cameraAudio, Audio.DEFAULT.value()));
         VideoCodec codec = VideoCodec.fromValue(a.getInteger(R.styleable.CameraView_cameraVideoCodec, VideoCodec.DEFAULT.value()));
@@ -169,7 +169,7 @@ public class CameraView extends FrameLayout implements LifecycleObserver {
         // Apply camera controller params
         setFacing(facing);
         setFlash(flash);
-        setSessionType(sessionType);
+        setMode(mode);
         setVideoQuality(videoQuality);
         setWhiteBalance(whiteBalance);
         setGrid(grid);
@@ -551,7 +551,7 @@ public class CameraView extends FrameLayout implements LifecycleObserver {
     public void start() {
         if (!isEnabled()) return;
 
-        if (checkPermissions(getSessionType(), getAudio())) {
+        if (checkPermissions(getMode(), getAudio())) {
             // Update display orientation for current CameraController
             mOrientationHelper.enable(getContext());
             mCameraController.setDisplayOffset(mOrientationHelper.getDisplayOffset());
@@ -563,19 +563,19 @@ public class CameraView extends FrameLayout implements LifecycleObserver {
     /**
      * Checks that we have appropriate permissions for this session type.
      * Throws if session = audio and manifest did not add the microphone permissions.     
-     * @param sessionType the sessionType to be checked
+     * @param mode the sessionType to be checked
      * @param audio the audio setting to be checked
      * @return true if we can go on, false otherwise.
      */
     @SuppressLint("NewApi")
-    protected boolean checkPermissions(SessionType sessionType, Audio audio) {
+    protected boolean checkPermissions(Mode mode, Audio audio) {
-        checkPermissionsManifestOrThrow(sessionType, audio);
+        checkPermissionsManifestOrThrow(mode, audio);
         // Manifest is OK at this point. Let's check runtime permissions.
         if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) return true;
 
         Context c = getContext();
         boolean needsCamera = true;
-        boolean needsAudio = sessionType == SessionType.VIDEO && audio == Audio.ON;
+        boolean needsAudio = mode == Mode.VIDEO && audio == Audio.ON;
 
         needsCamera = needsCamera && c.checkSelfPermission(Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED;
         needsAudio = needsAudio && c.checkSelfPermission(Manifest.permission.RECORD_AUDIO) != PackageManager.PERMISSION_GRANTED;
@@ -593,8 +593,8 @@ public class CameraView extends FrameLayout implements LifecycleObserver {
      * If the developer did not add this to its manifest, throw and fire warnings.
      * (Hoping this is not caught elsewhere... we should test).
      */
-    private void checkPermissionsManifestOrThrow(SessionType sessionType, Audio audio) {
+    private void checkPermissionsManifestOrThrow(Mode mode, Audio audio) {
-        if (sessionType == SessionType.VIDEO && audio == Audio.ON) {
+        if (mode == Mode.VIDEO && audio == Audio.ON) {
             try {
                 PackageManager manager = getContext().getPackageManager();
                 PackageInfo info = manager.getPackageInfo(getContext().getPackageName(), PackageManager.GET_PERMISSIONS);
@@ -656,8 +656,8 @@ public class CameraView extends FrameLayout implements LifecycleObserver {
             setGrid((Grid) control);
         } else if (control instanceof Hdr) {
             setHdr((Hdr) control);
-        } else if (control instanceof SessionType) {
+        } else if (control instanceof Mode) {
-            setSessionType((SessionType) control);
+            setMode((Mode) control);
         } else if (control instanceof VideoQuality) {
             setVideoQuality((VideoQuality) control);
         } else if (control instanceof WhiteBalance) {
@@ -932,7 +932,7 @@ public class CameraView extends FrameLayout implements LifecycleObserver {
             // Check did took place, or will happen on start().
             mCameraController.setAudio(audio);
 
-        } else if (checkPermissions(getSessionType(), audio)) {
+        } else if (checkPermissions(getMode(), audio)) {
             // Camera is running. Pass.
             mCameraController.setAudio(audio);
 
@@ -971,24 +971,21 @@ public class CameraView extends FrameLayout implements LifecycleObserver {
 
     /**
      * Set the current session type to either picture or video.
-     * When sessionType is video,
-     * - {@link #takeVideo(File)} will not throw any exception
-     * - {@link #takePicture()} might fallback to {@link #takePictureSnapshot()} or might not work
      *
-     * @see SessionType#PICTURE
+     * @see Mode#PICTURE
-     * @see SessionType#VIDEO
+     * @see Mode#VIDEO
      *
-     * @param sessionType desired session type.
+     * @param mode desired session type.
      */
-    public void setSessionType(SessionType sessionType) {
+    public void setMode(Mode mode) {
 
-        if (sessionType == getSessionType() || isStopped()) {
+        if (mode == getMode() || isStopped()) {
             // Check did took place, or will happen on start().
-            mCameraController.setSessionType(sessionType);
+            mCameraController.setMode(mode);
 
-        } else if (checkPermissions(sessionType, getAudio())) {
+        } else if (checkPermissions(mode, getAudio())) {
-            // Camera is running. CameraImpl setSessionType will do the trick.
+            // Camera is running. CameraImpl setMode will do the trick.
-            mCameraController.setSessionType(sessionType);
+            mCameraController.setMode(mode);
 
         } else {
             // This means that the audio permission is being asked.
@@ -1001,11 +998,11 @@ public class CameraView extends FrameLayout implements LifecycleObserver {
 
 
     /**
-     * Gets the current session type.
+     * Gets the current mode.
-     * @return the current session type
+     * @return the current mode
      */
-    public SessionType getSessionType() {
+    public Mode getMode() {
-        return mCameraController.getSessionType();
+        return mCameraController.getMode();
     }
 
 
@@ -1123,7 +1120,7 @@ public class CameraView extends FrameLayout implements LifecycleObserver {
      * This will trigger {@link CameraListener#onPictureTaken(PictureResult)} if a listener
      * was registered.
      *
-     * Note that if sessionType is {@link SessionType#VIDEO}, this
+     * Note that if sessionType is {@link Mode#VIDEO}, this
      * might fall back to {@link #takePictureSnapshot()} (that is, we might capture a preview frame).
      *
      * @see #takePictureSnapshot()

cameraview/src/main/options/com/otaliastudios/cameraview/Mode.java

@@ -0,0 +1,54 @@
+package com.otaliastudios.cameraview;
+
+
+import java.io.File;
+
+/**
+ * Type of the session to be opened or to move to.
+ * Session modes have influence over the capture and preview size, ability to shoot pictures,
+ * focus modes, runtime permissions needed.
+ *
+ * @see CameraView#setMode(Mode)
+ */
+public enum Mode implements Control {
+
+    /**
+     * Session used to capture pictures.
+     *
+     * - {@link CameraView#takeVideo(File)} will throw an exception
+     * - Only the camera permission is requested
+     * - Capture size is chosen according to the current picture size selector
+     */
+    PICTURE(0),
+
+    /**
+     * Session used to capture videos.
+     *
+     * - {@link CameraView#takePicture()} will throw an exception
+     * - Camera and audio record permissions are requested
+     * - Capture size is chosen according to the current video size selector
+     */
+    VIDEO(1);
+
+    static final Mode DEFAULT = PICTURE;
+
+    private int value;
+
+    Mode(int value) {
+        this.value = value;
+    }
+
+    int value() {
+        return value;
+    }
+
+    static Mode fromValue(int value) {
+        Mode[] list = Mode.values();
+        for (Mode action : list) {
+            if (action.value() == value) {
+                return action;
+            }
+        }
+        return null;
+    }
+}

cameraview/src/main/options/com/otaliastudios/cameraview/SessionType.java

@@ -1,56 +0,0 @@
-package com.otaliastudios.cameraview;
-
-
-
-/**
- * Type of the session to be opened or to move to.
- * Session types have influence over the capture and preview size, ability to shoot pictures,
- * focus modes, runtime permissions needed.
- *
- * @see CameraView#setSessionType(SessionType)
- */
-public enum SessionType implements Control {
-
-    /**
-     * Session optimized to capture pictures.
-     *
-     * - Trying to take videos in this session will throw an exception
-     * - Only the camera permission is requested
-     * - Capture size is chosen according to the current picture size selector
-     */
-    PICTURE(0),
-
-    /**
-     * Session optimized to capture videos.
-     *
-     * - Trying to take pictures in this session will work, though with lower quality
-     * - Trying to take pictures while recording a video will work if supported
-     * - Camera and audio record permissions are requested
-     * - Capture size is chosen trying to respect the {@link VideoQuality} aspect ratio
-     *
-     * @see CameraOptions#isVideoSnapshotSupported()
-     */
-    VIDEO(1);
-
-    static final SessionType DEFAULT = PICTURE;
-
-    private int value;
-
-    SessionType(int value) {
-        this.value = value;
-    }
-
-    int value() {
-        return value;
-    }
-
-    static SessionType fromValue(int value) {
-        SessionType[] list = SessionType.values();
-        for (SessionType action : list) {
-            if (action.value() == value) {
-                return action;
-            }
-        }
-        return null;
-    }
-}

cameraview/src/main/res/values/attrs.xml

@@ -84,7 +84,7 @@
             <enum name="drawPhi" value="3" />
         </attr>
 
-        <attr name="cameraSessionType" format="enum">
+        <attr name="cameraMode" format="enum">
             <enum name="picture" value="0" />
             <enum name="video" value="1" />
         </attr>

demo/src/main/java/com/otaliastudios/cameraview/demo/CameraActivity.java

@@ -18,7 +18,7 @@ import com.otaliastudios.cameraview.CameraLogger;
 import com.otaliastudios.cameraview.CameraOptions;
 import com.otaliastudios.cameraview.CameraView;
 import com.otaliastudios.cameraview.PictureResult;
-import com.otaliastudios.cameraview.SessionType;
+import com.otaliastudios.cameraview.Mode;
 import com.otaliastudios.cameraview.VideoResult;
 
 import java.io.File;
@@ -163,7 +163,7 @@ public class CameraActivity extends AppCompatActivity implements View.OnClickLis
     }
 
     private void captureVideo() {
-        if (camera.getSessionType() != SessionType.VIDEO) {
+        if (camera.getMode() != Mode.VIDEO) {
             message("Can't record video while session type is 'picture'.", false);
             return;
         }

demo/src/main/java/com/otaliastudios/cameraview/demo/Control.java

@@ -11,12 +11,11 @@ import com.otaliastudios.cameraview.Gesture;
 import com.otaliastudios.cameraview.GestureAction;
 import com.otaliastudios.cameraview.Grid;
 import com.otaliastudios.cameraview.Hdr;
-import com.otaliastudios.cameraview.SessionType;
+import com.otaliastudios.cameraview.Mode;
 import com.otaliastudios.cameraview.VideoQuality;
 import com.otaliastudios.cameraview.WhiteBalance;
 
 import java.util.ArrayList;
-import java.util.Arrays;
 import java.util.Collection;
 import java.util.List;
 
@@ -27,7 +26,7 @@ public enum Control {
 
     WIDTH("Width", false),
     HEIGHT("Height", true),
-    SESSION("Session type", false),
+    MODE("Mode", false),
     FLASH("Flash", false),
     WHITE_BALANCE("White balance", false),
     GRID("Grid", true),
@@ -72,7 +71,7 @@ public enum Control {
                     list.add(i);
                 }
                 return list;
-            case SESSION: return options.getSupportedControls(SessionType.class);
+            case MODE: return options.getSupportedControls(Mode.class);
             case FLASH: return options.getSupportedControls(Flash.class);
             case WHITE_BALANCE: return options.getSupportedControls(WhiteBalance.class);
             case HDR: return options.getSupportedControls(Hdr.class);
@@ -108,7 +107,7 @@ public enum Control {
         switch (this) {
             case WIDTH: return view.getLayoutParams().width;
             case HEIGHT: return view.getLayoutParams().height;
-            case SESSION: return view.getSessionType();
+            case MODE: return view.getMode();
             case FLASH: return view.getFlash();
             case WHITE_BALANCE: return view.getWhiteBalance();
             case GRID: return view.getGrid();
@@ -134,7 +133,7 @@ public enum Control {
                 camera.getLayoutParams().height = (int) value;
                 camera.setLayoutParams(camera.getLayoutParams());
                 break;
-            case SESSION:
+            case MODE:
             case FLASH:
             case WHITE_BALANCE:
             case GRID:

demo/src/main/res/layout/activity_camera.xml

@@ -25,7 +25,7 @@
         app:cameraGesturePinch="zoom"
         app:cameraGestureScrollHorizontal="exposureCorrection"
         app:cameraGestureScrollVertical="none"
-        app:cameraSessionType="picture" />
+        app:cameraMode="picture" />
 
 
     <ImageButton