| /* |
| * Copyright (C) 2013 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.camera; |
| |
| import android.content.ContentResolver; |
| import android.content.ContentValues; |
| import android.graphics.BitmapFactory; |
| import android.location.Location; |
| import android.net.Uri; |
| import android.os.AsyncTask; |
| import android.provider.MediaStore.Video; |
| |
| import com.android.camera.app.MediaSaver; |
| import com.android.camera.debug.Log; |
| import com.android.camera.exif.ExifInterface; |
| |
| import java.io.File; |
| |
| /** |
| * A class implementing {@link com.android.camera.app.MediaSaver}. |
| */ |
| public class MediaSaverImpl implements MediaSaver { |
| private static final Log.Tag TAG = new Log.Tag("MediaSaverImpl"); |
| private static final String VIDEO_BASE_URI = "content://media/external/video/media"; |
| |
| /** The memory limit for unsaved image is 20MB. */ |
| private static final int SAVE_TASK_MEMORY_LIMIT = 20 * 1024 * 1024; |
| |
| private QueueListener mQueueListener; |
| |
| /** Memory used by the total queued save request, in bytes. */ |
| private long mMemoryUse; |
| |
| public MediaSaverImpl() { |
| mMemoryUse = 0; |
| } |
| |
| @Override |
| public boolean isQueueFull() { |
| return (mMemoryUse >= SAVE_TASK_MEMORY_LIMIT); |
| } |
| |
| @Override |
| public void addImage(final byte[] data, String title, long date, Location loc, int width, |
| int height, int orientation, ExifInterface exif, OnMediaSavedListener l, |
| ContentResolver resolver) { |
| if (isQueueFull()) { |
| Log.e(TAG, "Cannot add image when the queue is full"); |
| return; |
| } |
| ImageSaveTask t = new ImageSaveTask(data, title, date, |
| (loc == null) ? null : new Location(loc), |
| width, height, orientation, exif, resolver, l); |
| |
| mMemoryUse += data.length; |
| if (isQueueFull()) { |
| onQueueFull(); |
| } |
| t.execute(); |
| } |
| |
| @Override |
| public void addImage(final byte[] data, String title, long date, Location loc, int orientation, |
| ExifInterface exif, OnMediaSavedListener l, ContentResolver resolver) { |
| // When dimensions are unknown, pass 0 as width and height, |
| // and decode image for width and height later in a background thread |
| addImage(data, title, date, loc, 0, 0, orientation, exif, l, resolver); |
| } |
| @Override |
| public void addImage(final byte[] data, String title, Location loc, int width, int height, |
| int orientation, ExifInterface exif, OnMediaSavedListener l, |
| ContentResolver resolver) { |
| addImage(data, title, System.currentTimeMillis(), loc, width, height, |
| orientation, exif, l, resolver); |
| } |
| |
| @Override |
| public void addVideo(String path, ContentValues values, OnMediaSavedListener l, |
| ContentResolver resolver) { |
| // We don't set a queue limit for video saving because the file |
| // is already in the storage. Only updating the database. |
| new VideoSaveTask(path, values, l, resolver).execute(); |
| } |
| |
| @Override |
| public void setQueueListener(QueueListener l) { |
| mQueueListener = l; |
| if (l == null) { |
| return; |
| } |
| l.onQueueStatus(isQueueFull()); |
| } |
| |
| private void onQueueFull() { |
| if (mQueueListener != null) { |
| mQueueListener.onQueueStatus(true); |
| } |
| } |
| |
| private void onQueueAvailable() { |
| if (mQueueListener != null) { |
| mQueueListener.onQueueStatus(false); |
| } |
| } |
| |
| private class ImageSaveTask extends AsyncTask <Void, Void, Uri> { |
| private final byte[] data; |
| private final String title; |
| private final long date; |
| private final Location loc; |
| private int width, height; |
| private final int orientation; |
| private final ExifInterface exif; |
| private final ContentResolver resolver; |
| private final OnMediaSavedListener listener; |
| |
| public ImageSaveTask(byte[] data, String title, long date, Location loc, |
| int width, int height, int orientation, ExifInterface exif, |
| ContentResolver resolver, OnMediaSavedListener listener) { |
| this.data = data; |
| this.title = title; |
| this.date = date; |
| this.loc = loc; |
| this.width = width; |
| this.height = height; |
| this.orientation = orientation; |
| this.exif = exif; |
| this.resolver = resolver; |
| this.listener = listener; |
| } |
| |
| @Override |
| protected void onPreExecute() { |
| // do nothing. |
| } |
| |
| @Override |
| protected Uri doInBackground(Void... v) { |
| if (width == 0 || height == 0) { |
| // Decode bounds |
| BitmapFactory.Options options = new BitmapFactory.Options(); |
| options.inJustDecodeBounds = true; |
| BitmapFactory.decodeByteArray(data, 0, data.length, options); |
| width = options.outWidth; |
| height = options.outHeight; |
| } |
| return Storage.addImage( |
| resolver, title, date, loc, orientation, exif, data, width, height); |
| } |
| |
| @Override |
| protected void onPostExecute(Uri uri) { |
| if (listener != null && uri != null) { |
| listener.onMediaSaved(uri); |
| } |
| boolean previouslyFull = isQueueFull(); |
| mMemoryUse -= data.length; |
| if (isQueueFull() != previouslyFull) { |
| onQueueAvailable(); |
| } |
| } |
| } |
| |
| private class VideoSaveTask extends AsyncTask <Void, Void, Uri> { |
| private String path; |
| private final ContentValues values; |
| private final OnMediaSavedListener listener; |
| private final ContentResolver resolver; |
| |
| public VideoSaveTask(String path, ContentValues values, OnMediaSavedListener l, |
| ContentResolver r) { |
| this.path = path; |
| this.values = new ContentValues(values); |
| this.listener = l; |
| this.resolver = r; |
| } |
| |
| @Override |
| protected Uri doInBackground(Void... v) { |
| Uri uri = null; |
| try { |
| Uri videoTable = Uri.parse(VIDEO_BASE_URI); |
| uri = resolver.insert(videoTable, values); |
| |
| // Rename the video file to the final name. This avoids other |
| // apps reading incomplete data. We need to do it after we are |
| // certain that the previous insert to MediaProvider is completed. |
| String finalName = values.getAsString(Video.Media.DATA); |
| File finalFile = new File(finalName); |
| if (new File(path).renameTo(finalFile)) { |
| path = finalName; |
| } |
| resolver.update(uri, values, null, null); |
| } catch (Exception e) { |
| // We failed to insert into the database. This can happen if |
| // the SD card is unmounted. |
| Log.e(TAG, "failed to add video to media store", e); |
| uri = null; |
| } finally { |
| Log.v(TAG, "Current video URI: " + uri); |
| } |
| return uri; |
| } |
| |
| @Override |
| protected void onPostExecute(Uri uri) { |
| if (listener != null) { |
| listener.onMediaSaved(uri); |
| } |
| } |
| } |
| } |