18872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb/* 28872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb * Copyright (C) 2011 The Android Open Source Project 38872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb * 48872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb * Licensed under the Apache License, Version 2.0 (the "License"); 58872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb * you may not use this file except in compliance with the License. 68872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb * You may obtain a copy of the License at 78872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb * 88872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb * http://www.apache.org/licenses/LICENSE-2.0 98872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb * 108872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb * Unless required by applicable law or agreed to in writing, software 118872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb * distributed under the License is distributed on an "AS IS" BASIS, 128872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 138872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb * See the License for the specific language governing permissions and 148872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb * limitations under the License. 158872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb */ 168872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb 178872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolbpackage com.android.camera; 188872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb 198872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolbimport android.graphics.Bitmap; 208872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolbimport android.media.MediaMetadataRetriever; 218872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb 228872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolbimport java.io.FileDescriptor; 238872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb 248872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolbpublic class Thumbnail { 258872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb public static Bitmap createVideoThumbnailBitmap(FileDescriptor fd, int targetWidth) { 268872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb return createVideoThumbnailBitmap(null, fd, targetWidth); 278872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb } 288872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb 298872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb public static Bitmap createVideoThumbnailBitmap(String filePath, int targetWidth) { 308872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb return createVideoThumbnailBitmap(filePath, null, targetWidth); 318872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb } 328872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb 338872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb private static Bitmap createVideoThumbnailBitmap(String filePath, FileDescriptor fd, 348872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb int targetWidth) { 358872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb Bitmap bitmap = null; 368872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb MediaMetadataRetriever retriever = new MediaMetadataRetriever(); 378872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb try { 388872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb if (filePath != null) { 398872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb retriever.setDataSource(filePath); 408872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb } else { 418872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb retriever.setDataSource(fd); 428872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb } 438872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb bitmap = retriever.getFrameAtTime(-1); 448872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb } catch (IllegalArgumentException ex) { 458872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb // Assume this is a corrupt video file 468872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb } catch (RuntimeException ex) { 478872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb // Assume this is a corrupt video file. 488872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb } finally { 498872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb try { 508872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb retriever.release(); 518872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb } catch (RuntimeException ex) { 528872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb // Ignore failures while cleaning up. 538872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb } 548872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb } 558872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb if (bitmap == null) return null; 568872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb 578872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb // Scale down the bitmap if it is bigger than we need. 588872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb int width = bitmap.getWidth(); 598872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb int height = bitmap.getHeight(); 608872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb if (width > targetWidth) { 618872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb float scale = (float) targetWidth / width; 628872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb int w = Math.round(scale * width); 638872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb int h = Math.round(scale * height); 648872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb bitmap = Bitmap.createScaledBitmap(bitmap, w, h, true); 658872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb } 668872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb return bitmap; 678872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb } 688872c23e739de38d74f04a8c852ebb5199c905f6Michael Kolb} 69