1 package com.android.camera.data; 2 3 import android.media.MediaMetadataRetriever; 4 5 import com.android.camera.debug.Log; 6 7 public class VideoRotationMetadataLoader { 8 private static final Log.Tag TAG = new Log.Tag("VidRotDataLoader"); 9 private static final String ROTATION_KEY = "metadata_video_rotation"; 10 private static final String WIDTH_KEY = "metadata_video_width"; 11 private static final String HEIGHT_KEY = "metadata_video_height"; 12 13 private static final String ROTATE_90 = "90"; 14 private static final String ROTATE_270 = "270"; 15 16 static boolean isRotated(LocalData localData) { 17 final String rotation = localData.getMetadata().getString(ROTATION_KEY); 18 return ROTATE_90.equals(rotation) || ROTATE_270.equals(rotation); 19 } 20 21 static int getWidth(LocalData localData) { 22 return localData.getMetadata().getInt(WIDTH_KEY); 23 24 } 25 26 static int getHeight(LocalData localData) { 27 return localData.getMetadata().getInt(HEIGHT_KEY); 28 } 29 30 static void loadRotationMetdata(final LocalData data) { 31 final String path = data.getPath(); 32 MediaMetadataRetriever retriever = new MediaMetadataRetriever(); 33 try { 34 retriever.setDataSource(path); 35 String rotation = retriever.extractMetadata( 36 MediaMetadataRetriever.METADATA_KEY_VIDEO_ROTATION); 37 data.getMetadata().putString(ROTATION_KEY, rotation); 38 39 String val = retriever.extractMetadata( 40 MediaMetadataRetriever.METADATA_KEY_VIDEO_WIDTH); 41 int width = Integer.parseInt(val); 42 43 data.getMetadata().putInt(WIDTH_KEY, width); 44 45 val = retriever.extractMetadata( 46 MediaMetadataRetriever.METADATA_KEY_VIDEO_HEIGHT); 47 int height = Integer.parseInt(val); 48 49 data.getMetadata().putInt(HEIGHT_KEY, height); 50 } catch (RuntimeException ex) { 51 // setDataSource() can cause RuntimeException beyond 52 // IllegalArgumentException. e.g: data contain *.avi file. 53 Log.e(TAG, "MediaMetdataRetriever.setDataSource() fail", ex); 54 } 55 } 56 } 57
