content: /*
   * Copyright (c) 2013, The Linux Foundation. All rights reserved.
   * Not a Contribution.
   *
   * Copyright (C) 2007 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.rsen.os;
  
  import android.mtp.MtpConstants;
  
  import java.util.HashMap;
  import java.util.Locale;
  
  /**
   * MediaScanner helper class.
   *
   * {@hide}
   */
  public class MediaFile {
  
      // Audio file types
      public static final int FILE_TYPE_MP3     = 1;
      public static final int FILE_TYPE_M4A     = 2;
      public static final int FILE_TYPE_WAV     = 3;
      public static final int FILE_TYPE_AMR     = 4;
      public static final int FILE_TYPE_AWB     = 5;
      public static final int FILE_TYPE_WMA     = 6;
      public static final int FILE_TYPE_OGG     = 7;
      public static final int FILE_TYPE_AAC     = 8;
      public static final int FILE_TYPE_MKA     = 9;
      public static final int FILE_TYPE_FLAC    = 10;
      private static final int FIRST_AUDIO_FILE_TYPE = FILE_TYPE_MP3;
      private static final int LAST_AUDIO_FILE_TYPE = FILE_TYPE_FLAC;
  
      // More audio file types
      public static final int FILE_TYPE_DTS   = 300;
      public static final int FILE_TYPE_3GPA  = 301;
      public static final int FILE_TYPE_AC3   = 302;
      public static final int FILE_TYPE_QCP   = 303;
      public static final int FILE_TYPE_PCM   = 304;
      public static final int FILE_TYPE_EC3   = 305;
      private static final int FIRST_AUDIO_FILE_TYPE2 = FILE_TYPE_DTS;
      private static final int LAST_AUDIO_FILE_TYPE2 = FILE_TYPE_EC3;
  
      // MIDI file types
      public static final int FILE_TYPE_MID     = 11;
      public static final int FILE_TYPE_SMF     = 12;
      public static final int FILE_TYPE_IMY     = 13;
      private static final int FIRST_MIDI_FILE_TYPE = FILE_TYPE_MID;
      private static final int LAST_MIDI_FILE_TYPE = FILE_TYPE_IMY;
     
      // Video file types
      public static final int FILE_TYPE_MP4     = 21;
      public static final int FILE_TYPE_M4V     = 22;
      public static final int FILE_TYPE_3GPP    = 23;
      public static final int FILE_TYPE_3GPP2   = 24;
      public static final int FILE_TYPE_WMV     = 25;
      public static final int FILE_TYPE_ASF     = 26;
      public static final int FILE_TYPE_MKV     = 27;
      public static final int FILE_TYPE_MP2TS   = 28;
      public static final int FILE_TYPE_AVI     = 29;
      public static final int FILE_TYPE_WEBM    = 30;
      private static final int FIRST_VIDEO_FILE_TYPE = FILE_TYPE_MP4;
      private static final int LAST_VIDEO_FILE_TYPE = FILE_TYPE_WEBM;
      
      // More video file types
      public static final int FILE_TYPE_MP2PS   = 200;
      public static final int FILE_TYPE_DIVX    = 201;
      private static final int FIRST_VIDEO_FILE_TYPE2 = FILE_TYPE_MP2PS;
      private static final int LAST_VIDEO_FILE_TYPE2 = FILE_TYPE_DIVX;
  
      // Image file types
      public static final int FILE_TYPE_JPEG    = 31;
      public static final int FILE_TYPE_GIF     = 32;
      public static final int FILE_TYPE_PNG     = 33;
      public static final int FILE_TYPE_BMP     = 34;
      public static final int FILE_TYPE_WBMP    = 35;
      public static final int FILE_TYPE_WEBP    = 36;
      private static final int FIRST_IMAGE_FILE_TYPE = FILE_TYPE_JPEG;
      private static final int LAST_IMAGE_FILE_TYPE = FILE_TYPE_WEBP;
     
      // Playlist file types
      public static final int FILE_TYPE_M3U      = 41;
      public static final int FILE_TYPE_PLS      = 42;
      public static final int FILE_TYPE_WPL      = 43;
      public static final int FILE_TYPE_HTTPLIVE = 44;
      public static final int FILE_TYPE_DASH     = 45;
  
      private static final int FIRST_PLAYLIST_FILE_TYPE = FILE_TYPE_M3U;
      private static final int LAST_PLAYLIST_FILE_TYPE = FILE_TYPE_DASH;
  
      // Drm file types
      public static final int FILE_TYPE_FL      = 51;
      private static final int FIRST_DRM_FILE_TYPE = FILE_TYPE_FL;
      private static final int LAST_DRM_FILE_TYPE = FILE_TYPE_FL;
  
      // Other popular file types
      public static final int FILE_TYPE_TEXT          = 100;
      public static final int FILE_TYPE_HTML          = 101;
      public static final int FILE_TYPE_PDF           = 102;
      public static final int FILE_TYPE_XML           = 103;
      public static final int FILE_TYPE_MS_WORD       = 104;
      public static final int FILE_TYPE_MS_EXCEL      = 105;
      public static final int FILE_TYPE_MS_POWERPOINT = 106;
      public static final int FILE_TYPE_ZIP           = 107;
      
      public static class MediaFileType {
          public final int fileType;
          public final String mimeType;
          
          MediaFileType(int fileType, String mimeType) {
              this.fileType = fileType;
              this.mimeType = mimeType;
          }
      }
      
      private static final HashMap<String, MediaFileType> sFileTypeMap
              = new HashMap<String, MediaFileType>();
      private static final HashMap<String, Integer> sMimeTypeMap
              = new HashMap<String, Integer>();
      // maps file extension to MTP format code
      private static final HashMap<String, Integer> sFileTypeToFormatMap
              = new HashMap<String, Integer>();
      // maps mime type to MTP format code
      private static final HashMap<String, Integer> sMimeTypeToFormatMap
              = new HashMap<String, Integer>();
      // maps MTP format code to mime type
      private static final HashMap<Integer, String> sFormatToMimeTypeMap
              = new HashMap<Integer, String>();
  
      static void addFileType(String extension, int fileType, String mimeType) {
          sFileTypeMap.put(extension, new MediaFileType(fileType, mimeType));
          sMimeTypeMap.put(mimeType, Integer.valueOf(fileType));
      }
  
      static void addFileType(String extension, int fileType, String mimeType, int mtpFormatCode) {
          addFileType(extension, fileType, mimeType);
          sFileTypeToFormatMap.put(extension, Integer.valueOf(mtpFormatCode));
          sMimeTypeToFormatMap.put(mimeType, Integer.valueOf(mtpFormatCode));
          sFormatToMimeTypeMap.put(mtpFormatCode, mimeType);
      }
  
      static {
          addFileType("MP3", FILE_TYPE_MP3, "audio/mpeg", MtpConstants.FORMAT_MP3);
          addFileType("MPGA", FILE_TYPE_MP3, "audio/mpeg", MtpConstants.FORMAT_MP3);
          addFileType("M4A", FILE_TYPE_M4A, "audio/mp4", MtpConstants.FORMAT_MPEG);
          addFileType("WAV", FILE_TYPE_WAV, "audio/x-wav", MtpConstants.FORMAT_WAV);
          addFileType("WAV", FILE_TYPE_PCM, "audio/wav");
          addFileType("AMR", FILE_TYPE_AMR, "audio/amr");
          addFileType("AWB", FILE_TYPE_AWB, "audio/amr-wb");
  //        if (isWMAEnabled()) {
  //            addFileType("WMA", FILE_TYPE_WMA, "audio/x-ms-wma", MtpConstants.FORMAT_WMA);
  //        }
          addFileType("QCP", FILE_TYPE_QCP, "audio/qcelp");
          addFileType("OGG", FILE_TYPE_OGG, "audio/ogg", MtpConstants.FORMAT_OGG);
          addFileType("OGG", FILE_TYPE_OGG, "application/ogg", MtpConstants.FORMAT_OGG);
          addFileType("OGA", FILE_TYPE_OGG, "application/ogg", MtpConstants.FORMAT_OGG);
          addFileType("AAC", FILE_TYPE_AAC, "audio/aac", MtpConstants.FORMAT_AAC);
          addFileType("AAC", FILE_TYPE_AAC, "audio/aac-adts", MtpConstants.FORMAT_AAC);
          addFileType("MKA", FILE_TYPE_MKA, "audio/x-matroska");
   
          addFileType("MID", FILE_TYPE_MID, "audio/midi");
          addFileType("MIDI", FILE_TYPE_MID, "audio/midi");
          addFileType("XMF", FILE_TYPE_MID, "audio/midi");
          addFileType("RTTTL", FILE_TYPE_MID, "audio/midi");
          addFileType("SMF", FILE_TYPE_SMF, "audio/sp-midi");
          addFileType("IMY", FILE_TYPE_IMY, "audio/imelody");
          addFileType("RTX", FILE_TYPE_MID, "audio/midi");
          addFileType("OTA", FILE_TYPE_MID, "audio/midi");
          addFileType("MXMF", FILE_TYPE_MID, "audio/midi");
          
          addFileType("MPEG", FILE_TYPE_MP4, "video/mpeg", MtpConstants.FORMAT_MPEG);
          addFileType("MPG", FILE_TYPE_MP4, "video/mpeg", MtpConstants.FORMAT_MPEG);
          addFileType("MP4", FILE_TYPE_MP4, "video/mp4", MtpConstants.FORMAT_MPEG);
          addFileType("M4V", FILE_TYPE_M4V, "video/mp4", MtpConstants.FORMAT_MPEG);
          addFileType("MOV", FILE_TYPE_MP4, "video/quicktime", MtpConstants.FORMAT_MPEG);
          addFileType("3GP", FILE_TYPE_3GPP, "video/3gpp",  MtpConstants.FORMAT_3GP_CONTAINER);
          addFileType("3GPP", FILE_TYPE_3GPP, "video/3gpp", MtpConstants.FORMAT_3GP_CONTAINER);
          addFileType("3G2", FILE_TYPE_3GPP2, "video/3gpp2", MtpConstants.FORMAT_3GP_CONTAINER);
          addFileType("3GPP2", FILE_TYPE_3GPP2, "video/3gpp2", MtpConstants.FORMAT_3GP_CONTAINER);
          addFileType("MKV", FILE_TYPE_MKV, "video/x-matroska");
          addFileType("WEBM", FILE_TYPE_WEBM, "video/webm");
          addFileType("TS", FILE_TYPE_MP2TS, "video/mp2ts");
          addFileType("AVI", FILE_TYPE_AVI, "video/avi");
  
  //        if (isWMVEnabled()) {
  //            addFileType("WMV", FILE_TYPE_WMV, "video/x-ms-wmv", MtpConstants.FORMAT_WMV);
  //            addFileType("ASF", FILE_TYPE_ASF, "video/x-ms-asf");
  //        }
  
          addFileType("JPG", FILE_TYPE_JPEG, "image/jpeg", MtpConstants.FORMAT_EXIF_JPEG);
          addFileType("JPEG", FILE_TYPE_JPEG, "image/jpeg", MtpConstants.FORMAT_EXIF_JPEG);
          addFileType("GIF", FILE_TYPE_GIF, "image/gif", MtpConstants.FORMAT_GIF);
          addFileType("PNG", FILE_TYPE_PNG, "image/png", MtpConstants.FORMAT_PNG);
          addFileType("BMP", FILE_TYPE_BMP, "image/x-ms-bmp", MtpConstants.FORMAT_BMP);
          addFileType("WBMP", FILE_TYPE_WBMP, "image/vnd.wap.wbmp");
          addFileType("WEBP", FILE_TYPE_WEBP, "image/webp");
   
          addFileType("M3U", FILE_TYPE_M3U, "audio/x-mpegurl", MtpConstants.FORMAT_M3U_PLAYLIST);
          addFileType("M3U", FILE_TYPE_M3U, "application/x-mpegurl", MtpConstants.FORMAT_M3U_PLAYLIST);
          addFileType("PLS", FILE_TYPE_PLS, "audio/x-scpls", MtpConstants.FORMAT_PLS_PLAYLIST);
          addFileType("WPL", FILE_TYPE_WPL, "application/vnd.ms-wpl", MtpConstants.FORMAT_WPL_PLAYLIST);
          addFileType("M3U8", FILE_TYPE_HTTPLIVE, "application/vnd.apple.mpegurl");
          addFileType("M3U8", FILE_TYPE_HTTPLIVE, "audio/mpegurl");
          addFileType("M3U8", FILE_TYPE_HTTPLIVE, "audio/x-mpegurl");
          addFileType("MPD", FILE_TYPE_DASH, "application/dash+xml");
  
          addFileType("FL", FILE_TYPE_FL, "application/x-android-drm-fl");
  
          addFileType("TXT", FILE_TYPE_TEXT, "text/plain", MtpConstants.FORMAT_TEXT);
          addFileType("HTM", FILE_TYPE_HTML, "text/html", MtpConstants.FORMAT_HTML);
          addFileType("HTML", FILE_TYPE_HTML, "text/html", MtpConstants.FORMAT_HTML);
          addFileType("PDF", FILE_TYPE_PDF, "application/pdf");
          addFileType("DOC", FILE_TYPE_MS_WORD, "application/msword", MtpConstants.FORMAT_MS_WORD_DOCUMENT);
          addFileType("XLS", FILE_TYPE_MS_EXCEL, "application/vnd.ms-excel", MtpConstants.FORMAT_MS_EXCEL_SPREADSHEET);
          addFileType("PPT", FILE_TYPE_MS_POWERPOINT, "application/mspowerpoint", MtpConstants.FORMAT_MS_POWERPOINT_PRESENTATION);
          addFileType("FLAC", FILE_TYPE_FLAC, "audio/flac", MtpConstants.FORMAT_FLAC);
          addFileType("ZIP", FILE_TYPE_ZIP, "application/zip");
          addFileType("MPG", FILE_TYPE_MP2PS, "video/mp2p");
          addFileType("MPEG", FILE_TYPE_MP2PS, "video/mp2p");
          addFileType("DIVX", FILE_TYPE_DIVX, "video/divx");
          addFileType("AC3", FILE_TYPE_AC3, "audio/ac3");
          addFileType("EC3", FILE_TYPE_EC3, "audio/eac3");
      }
  
      public static boolean isAudioFileType(int fileType) {
          return ((fileType >= FIRST_AUDIO_FILE_TYPE &&
                  fileType <= LAST_AUDIO_FILE_TYPE) ||
                  (fileType >= FIRST_MIDI_FILE_TYPE &&
                  fileType <= LAST_MIDI_FILE_TYPE) ||
                  (fileType >= FIRST_AUDIO_FILE_TYPE2 &&
                  fileType <= LAST_AUDIO_FILE_TYPE2));
      }
  
      public static boolean isVideoFileType(int fileType) {
          return (fileType >= FIRST_VIDEO_FILE_TYPE &&
                  fileType <= LAST_VIDEO_FILE_TYPE)
              || (fileType >= FIRST_VIDEO_FILE_TYPE2 &&
                  fileType <= LAST_VIDEO_FILE_TYPE2);
      }
  
      public static boolean isImageFileType(int fileType) {
          return (fileType >= FIRST_IMAGE_FILE_TYPE &&
                  fileType <= LAST_IMAGE_FILE_TYPE);
      }
  
      public static boolean isPlayListFileType(int fileType) {
          return (fileType >= FIRST_PLAYLIST_FILE_TYPE &&
                  fileType <= LAST_PLAYLIST_FILE_TYPE);
      }
  
      public static boolean isDrmFileType(int fileType) {
          return (fileType >= FIRST_DRM_FILE_TYPE &&
                  fileType <= LAST_DRM_FILE_TYPE);
      }
  
      public static MediaFileType getFileType(String path) {
          int lastDot = path.lastIndexOf('.');
          if (lastDot < 0)
              return null;
          return sFileTypeMap.get(path.substring(lastDot + 1).toUpperCase(Locale.ROOT));
      }
  
      public static boolean isMimeTypeMedia(String mimeType) {
          int fileType = getFileTypeForMimeType(mimeType);
          return isAudioFileType(fileType) || isVideoFileType(fileType)
                  || isImageFileType(fileType) || isPlayListFileType(fileType);
      }
  
      // generates a title based on file name
      public static String getFileTitle(String path) {
          // extract file name after last slash
          int lastSlash = path.lastIndexOf('/');
          if (lastSlash >= 0) {
              lastSlash++;
              if (lastSlash < path.length()) {
                  path = path.substring(lastSlash);
              }
          }
          // truncate the file extension (if any)
          int lastDot = path.lastIndexOf('.');
          if (lastDot > 0) {
              path = path.substring(0, lastDot);
          }
          return path;
      }
  
      public static int getFileTypeForMimeType(String mimeType) {
          Integer value = sMimeTypeMap.get(mimeType);
          return (value == null ? 0 : value.intValue());
      }
  
      public static String getMimeTypeForFile(String path) {
          MediaFileType mediaFileType = getFileType(path);
          return (mediaFileType == null ? null : mediaFileType.mimeType);
      }
  
      public static int getFormatCode(String fileName, String mimeType) {
          if (mimeType != null) {
              Integer value = sMimeTypeToFormatMap.get(mimeType);
              if (value != null) {
                  return value.intValue();
              }
          }
          int lastDot = fileName.lastIndexOf('.');
          if (lastDot > 0) {
              String extension = fileName.substring(lastDot + 1).toUpperCase(Locale.ROOT);
              Integer value = sFileTypeToFormatMap.get(extension);
              if (value != null) {
                  return value.intValue();
              }
          }
          return MtpConstants.FORMAT_UNDEFINED;
      }
  
      public static String getMimeTypeForFormatCode(int formatCode) {
          return sFormatToMimeTypeMap.get(formatCode);
      }
  }
  