f545a3ac9e
Under the new MtpStorageManager design, media info like MP3 Track title, album and artist, Genre, etc can not be retrieved via MTP by Windows Media Player, Linux Rhythmbox and Some Car Kits Bug: 112635346 Test: atest MtpTests Test: atest MediaProviderTests Test: Manual test: Windows Media Player Change-Id: I57a947fe6d3a583a0990be5bd2b0678f39d948f2
289 lines
12 KiB
Java
289 lines
12 KiB
Java
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.mtp;
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import android.content.ContentProviderClient;
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import android.database.Cursor;
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import android.net.Uri;
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import android.os.RemoteException;
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import android.provider.MediaStore.Audio;
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import android.provider.MediaStore.Files;
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import android.provider.MediaStore.Images;
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import android.util.Log;
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import java.util.ArrayList;
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/**
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* MtpPropertyGroup represents a list of MTP properties.
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* {@hide}
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*/
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class MtpPropertyGroup {
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private static final String TAG = MtpPropertyGroup.class.getSimpleName();
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private class Property {
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int code;
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int type;
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int column;
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Property(int code, int type, int column) {
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this.code = code;
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this.type = type;
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this.column = column;
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}
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}
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// list of all properties in this group
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private final Property[] mProperties;
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// list of columns for database query
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private String[] mColumns;
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private static final String PATH_WHERE = Files.FileColumns.DATA + "=?";
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// constructs a property group for a list of properties
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public MtpPropertyGroup(int[] properties) {
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int count = properties.length;
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ArrayList<String> columns = new ArrayList<>(count);
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columns.add(Files.FileColumns._ID);
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mProperties = new Property[count];
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for (int i = 0; i < count; i++) {
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mProperties[i] = createProperty(properties[i], columns);
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}
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count = columns.size();
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mColumns = new String[count];
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for (int i = 0; i < count; i++) {
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mColumns[i] = columns.get(i);
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}
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}
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private Property createProperty(int code, ArrayList<String> columns) {
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String column = null;
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int type;
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switch (code) {
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case MtpConstants.PROPERTY_STORAGE_ID:
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type = MtpConstants.TYPE_UINT32;
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break;
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case MtpConstants.PROPERTY_OBJECT_FORMAT:
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type = MtpConstants.TYPE_UINT16;
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break;
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case MtpConstants.PROPERTY_PROTECTION_STATUS:
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type = MtpConstants.TYPE_UINT16;
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break;
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case MtpConstants.PROPERTY_OBJECT_SIZE:
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type = MtpConstants.TYPE_UINT64;
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break;
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case MtpConstants.PROPERTY_OBJECT_FILE_NAME:
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type = MtpConstants.TYPE_STR;
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break;
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case MtpConstants.PROPERTY_NAME:
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type = MtpConstants.TYPE_STR;
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break;
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case MtpConstants.PROPERTY_DATE_MODIFIED:
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type = MtpConstants.TYPE_STR;
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break;
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case MtpConstants.PROPERTY_DATE_ADDED:
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type = MtpConstants.TYPE_STR;
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break;
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case MtpConstants.PROPERTY_ORIGINAL_RELEASE_DATE:
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column = Audio.AudioColumns.YEAR;
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type = MtpConstants.TYPE_STR;
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break;
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case MtpConstants.PROPERTY_PARENT_OBJECT:
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type = MtpConstants.TYPE_UINT32;
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break;
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case MtpConstants.PROPERTY_PERSISTENT_UID:
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type = MtpConstants.TYPE_UINT128;
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break;
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case MtpConstants.PROPERTY_DURATION:
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column = Audio.AudioColumns.DURATION;
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type = MtpConstants.TYPE_UINT32;
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break;
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case MtpConstants.PROPERTY_TRACK:
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column = Audio.AudioColumns.TRACK;
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type = MtpConstants.TYPE_UINT16;
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break;
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case MtpConstants.PROPERTY_DISPLAY_NAME:
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type = MtpConstants.TYPE_STR;
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break;
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case MtpConstants.PROPERTY_ARTIST:
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column = Audio.AudioColumns.ARTIST;
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type = MtpConstants.TYPE_STR;
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break;
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case MtpConstants.PROPERTY_ALBUM_NAME:
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column = Audio.AudioColumns.ALBUM;
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type = MtpConstants.TYPE_STR;
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break;
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case MtpConstants.PROPERTY_ALBUM_ARTIST:
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column = Audio.AudioColumns.ALBUM_ARTIST;
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type = MtpConstants.TYPE_STR;
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break;
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case MtpConstants.PROPERTY_GENRE:
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column = Audio.AudioColumns.GENRE;
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type = MtpConstants.TYPE_STR;
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break;
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case MtpConstants.PROPERTY_COMPOSER:
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column = Audio.AudioColumns.COMPOSER;
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type = MtpConstants.TYPE_STR;
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break;
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case MtpConstants.PROPERTY_DESCRIPTION:
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column = Images.ImageColumns.DESCRIPTION;
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type = MtpConstants.TYPE_STR;
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break;
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case MtpConstants.PROPERTY_AUDIO_WAVE_CODEC:
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case MtpConstants.PROPERTY_AUDIO_BITRATE:
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case MtpConstants.PROPERTY_SAMPLE_RATE:
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// these are special cased
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type = MtpConstants.TYPE_UINT32;
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break;
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case MtpConstants.PROPERTY_BITRATE_TYPE:
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case MtpConstants.PROPERTY_NUMBER_OF_CHANNELS:
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// these are special cased
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type = MtpConstants.TYPE_UINT16;
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break;
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default:
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type = MtpConstants.TYPE_UNDEFINED;
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Log.e(TAG, "unsupported property " + code);
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break;
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}
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if (column != null) {
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columns.add(column);
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return new Property(code, type, columns.size() - 1);
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} else {
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return new Property(code, type, -1);
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}
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}
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/**
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* Gets the values of the properties represented by this property group for the given
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* object and adds them to the given property list.
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* @return Response_OK if the operation succeeded.
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*/
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public int getPropertyList(ContentProviderClient provider, String volumeName,
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MtpStorageManager.MtpObject object, MtpPropertyList list) {
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Cursor c = null;
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int id = object.getId();
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String path = object.getPath().toString();
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for (Property property : mProperties) {
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if (property.column != -1 && c == null) {
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try {
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// Look up the entry in MediaProvider only if one of those properties is needed.
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final Uri uri = MtpDatabase.getObjectPropertiesUri(object.getFormat(),
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volumeName);
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c = provider.query(uri, mColumns,
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PATH_WHERE, new String[] {path}, null, null);
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if (c != null && !c.moveToNext()) {
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c.close();
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c = null;
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}
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} catch (IllegalArgumentException e) {
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return MtpConstants.RESPONSE_INVALID_OBJECT_PROP_CODE;
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} catch (RemoteException e) {
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Log.e(TAG, "Mediaprovider lookup failed");
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}
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}
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switch (property.code) {
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case MtpConstants.PROPERTY_PROTECTION_STATUS:
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// protection status is always 0
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list.append(id, property.code, property.type, 0);
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break;
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case MtpConstants.PROPERTY_NAME:
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case MtpConstants.PROPERTY_OBJECT_FILE_NAME:
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case MtpConstants.PROPERTY_DISPLAY_NAME:
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list.append(id, property.code, object.getName());
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break;
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case MtpConstants.PROPERTY_DATE_MODIFIED:
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case MtpConstants.PROPERTY_DATE_ADDED:
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// convert from seconds to DateTime
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list.append(id, property.code,
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format_date_time(object.getModifiedTime()));
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break;
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case MtpConstants.PROPERTY_STORAGE_ID:
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list.append(id, property.code, property.type, object.getStorageId());
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break;
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case MtpConstants.PROPERTY_OBJECT_FORMAT:
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list.append(id, property.code, property.type, object.getFormat());
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break;
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case MtpConstants.PROPERTY_OBJECT_SIZE:
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list.append(id, property.code, property.type, object.getSize());
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break;
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case MtpConstants.PROPERTY_PARENT_OBJECT:
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list.append(id, property.code, property.type,
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object.getParent().isRoot() ? 0 : object.getParent().getId());
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break;
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case MtpConstants.PROPERTY_PERSISTENT_UID:
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// The persistent uid must be unique and never reused among all objects,
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// and remain the same between sessions.
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long puid = (object.getPath().toString().hashCode() << 32)
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+ object.getModifiedTime();
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list.append(id, property.code, property.type, puid);
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break;
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case MtpConstants.PROPERTY_ORIGINAL_RELEASE_DATE:
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// release date is stored internally as just the year
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int year = 0;
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if (c != null)
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year = c.getInt(property.column);
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String dateTime = Integer.toString(year) + "0101T000000";
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list.append(id, property.code, dateTime);
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break;
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case MtpConstants.PROPERTY_TRACK:
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int track = 0;
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if (c != null)
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track = c.getInt(property.column);
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list.append(id, property.code, MtpConstants.TYPE_UINT16,
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track % 1000);
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break;
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case MtpConstants.PROPERTY_AUDIO_WAVE_CODEC:
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case MtpConstants.PROPERTY_AUDIO_BITRATE:
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case MtpConstants.PROPERTY_SAMPLE_RATE:
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// we don't have these in our database, so return 0
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list.append(id, property.code, MtpConstants.TYPE_UINT32, 0);
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break;
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case MtpConstants.PROPERTY_BITRATE_TYPE:
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case MtpConstants.PROPERTY_NUMBER_OF_CHANNELS:
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// we don't have these in our database, so return 0
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list.append(id, property.code, MtpConstants.TYPE_UINT16, 0);
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break;
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default:
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switch(property.type) {
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case MtpConstants.TYPE_UNDEFINED:
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list.append(id, property.code, property.type, 0);
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break;
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case MtpConstants.TYPE_STR:
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String value = "";
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if (c != null)
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value = c.getString(property.column);
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list.append(id, property.code, value);
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break;
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default:
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long longValue = 0L;
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if (c != null)
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longValue = c.getLong(property.column);
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list.append(id, property.code, property.type, longValue);
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}
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}
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}
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if (c != null)
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c.close();
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return MtpConstants.RESPONSE_OK;
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}
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private native String format_date_time(long seconds);
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}
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