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Commit dd0b16c2 authored by James Dong's avatar James Dong
Browse files

Add two methods to Camera.java 

o getSupportedVideoSizes() allows us to retrieve the list of the supported
  video sizes from the camera

o getPreferredPreviewSizeForVideoRecording() allows us to retrieve the
  preferred/recommended preview size for camcorder applications

bug - 3237021

Change-Id: I52fc9938d389bb411406320b0309775b6f44f4dc
parent 407b4e91

api/current.xml

+22 −0
Original line number Diff line number Diff line
@@ -89752,6 +89752,17 @@ 
 visibility="public"

>

</method>

<method name="getPreferredPreviewSizeForVideo"

 return="android.hardware.Camera.Size"

 abstract="false"

 native="false"

 synchronized="false"

 static="false"

 final="false"

 deprecated="not deprecated"

 visibility="public"

>

</method>

<method name="getPreviewFormat"

 return="int"

 abstract="false"
@@ -89941,6 +89952,17 @@ 
 visibility="public"

>

</method>

<method name="getSupportedVideoSizes"

 return="java.util.List&lt;android.hardware.Camera.Size&gt;"

 abstract="false"

 native="false"

 synchronized="false"

 static="false"

 final="false"

 deprecated="not deprecated"

 visibility="public"

>

</method>

<method name="getSupportedWhiteBalance"

 return="java.util.List&lt;java.lang.String&gt;"

 abstract="false"

core/java/android/hardware/Camera.java

+44 −1
Original line number Diff line number Diff line
@@ -1021,6 +1021,9 @@ public class Camera { 
        private static final String KEY_ZOOM_SUPPORTED = "zoom-supported";

        private static final String KEY_SMOOTH_ZOOM_SUPPORTED = "smooth-zoom-supported";

        private static final String KEY_FOCUS_DISTANCES = "focus-distances";

        private static final String KEY_VIDEO_SIZE = "video-size";

        private static final String KEY_PREFERRED_PREVIEW_SIZE_FOR_VIDEO =

                                            "preferred-preview-size-for-video";



        // Parameter key suffix for supported values.

        private static final String SUPPORTED_VALUES_SUFFIX = "-values";
@@ -1398,7 +1401,7 @@ public class Camera { 
        /**

         * Returns the dimensions setting for preview pictures.

         *

         * @return a Size object with the height and width setting

         * @return a Size object with the width and height setting

         *          for the preview picture

         */

        public Size getPreviewSize() {
@@ -1417,6 +1420,46 @@ public class Camera { 
            return splitSize(str);

        }



        /**

         * Gets the supported video frame sizes that can be used by

         * MediaRecorder.

         *

         * If the returned list is not null, the returned list will contain at

         * least one Size and one of the sizes in the returned list must be

         * passed to MediaRecorder.setVideoSize() for camcorder application if

         * camera is used as the video source. In this case, the size of the

         * preview can be different from the resolution of the recorded video

         * during video recording.

         *

         * @return a list of Size object if camera has separate preview and

         *         video output; otherwise, null is returned.

         * @see #getPreferredPreviewSizeForVideo()

         */

        public List<Size> getSupportedVideoSizes() {

            String str = get(KEY_VIDEO_SIZE + SUPPORTED_VALUES_SUFFIX);

            return splitSize(str);

        }



        /**

         * Returns the preferred or recommended preview size (width and height)

         * in pixels for video recording. Camcorder applications should

         * set the preview size to a value that is not larger than the

         * preferred preview size. In other words, the product of the width

         * and height of the preview size should not be larger than that of

         * the preferred preview size. In addition, we recommend to choose a

         * preview size that has the same aspect ratio as the resolution of

         * video to be recorded.

         *

         * @return the preferred preview size (width and height) in pixels for

         *         video recording if getSupportedVideoSizes() does not return

         *         null; otherwise, null is returned.

         * @see #getSupportedVideoSizes()

         */

        public Size getPreferredPreviewSizeForVideo() {

            String pair = get(KEY_PREFERRED_PREVIEW_SIZE_FOR_VIDEO);

            return strToSize(pair);

        }



        /**

         * Sets the dimensions for EXIF thumbnail in Jpeg picture. If

         * applications set both width and height to 0, EXIF will not contain