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The source code is released under:
Apache License
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package com.qinxiandiqi.utils; /*from w ww. j ava 2 s . co m*/ import java.util.HashMap; public class MediaUtils { // 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; // 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; // 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; private static final int FIRST_PLAYLIST_FILE_TYPE = FILE_TYPE_M3U; private static final int LAST_PLAYLIST_FILE_TYPE = FILE_TYPE_HTTPLIVE; // 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 HashMap<String, MediaFileType> sFileTypeMap = new HashMap<String, MediaFileType>(); private static HashMap<String, Integer> sMimeTypeMap = new HashMap<String, Integer>(); static void addFileType(String extension, int fileType, String mimeType) { sFileTypeMap.put(extension, new MediaFileType(fileType, mimeType)); sMimeTypeMap.put(mimeType, Integer.valueOf(fileType)); } static { addFileType("MP3", FILE_TYPE_MP3, "audio/mpeg"); addFileType("M4A", FILE_TYPE_M4A, "audio/mp4"); addFileType("WAV", FILE_TYPE_WAV, "audio/x-wav"); addFileType("AMR", FILE_TYPE_AMR, "audio/amr"); addFileType("AWB", FILE_TYPE_AWB, "audio/amr-wb"); addFileType("WMA", FILE_TYPE_WMA, "audio/x-ms-wma"); addFileType("OGG", FILE_TYPE_OGG, "application/ogg"); addFileType("OGA", FILE_TYPE_OGG, "application/ogg"); addFileType("AAC", FILE_TYPE_AAC, "audio/aac"); addFileType("AAC", FILE_TYPE_AAC, "audio/aac-adts"); 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"); addFileType("MPG", FILE_TYPE_MP4, "video/mpeg"); addFileType("MP4", FILE_TYPE_MP4, "video/mp4"); addFileType("M4V", FILE_TYPE_M4V, "video/mp4"); addFileType("3GP", FILE_TYPE_3GPP, "video/3gpp"); addFileType("3GPP", FILE_TYPE_3GPP, "video/3gpp"); addFileType("3G2", FILE_TYPE_3GPP2, "video/3gpp2"); addFileType("3GPP2", FILE_TYPE_3GPP2, "video/3gpp2"); 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"); addFileType("WMV", FILE_TYPE_WMV, "video/x-ms-wmv"); addFileType("ASF", FILE_TYPE_ASF, "video/x-ms-asf"); addFileType("JPG", FILE_TYPE_JPEG, "image/jpeg"); addFileType("JPEG", FILE_TYPE_JPEG, "image/jpeg"); addFileType("GIF", FILE_TYPE_GIF, "image/gif"); addFileType("PNG", FILE_TYPE_PNG, "image/png"); addFileType("BMP", FILE_TYPE_BMP, "image/x-ms-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"); addFileType("M3U", FILE_TYPE_M3U, "application/x-mpegurl"); addFileType("PLS", FILE_TYPE_PLS, "audio/x-scpls"); addFileType("WPL", FILE_TYPE_WPL, "application/vnd.ms-wpl"); 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("FL", FILE_TYPE_FL, "application/x-android-drm-fl"); addFileType("TXT", FILE_TYPE_TEXT, "text/plain"); addFileType("HTM", FILE_TYPE_HTML, "text/html"); addFileType("HTML", FILE_TYPE_HTML, "text/html"); addFileType("PDF", FILE_TYPE_PDF, "application/pdf"); addFileType("DOC", FILE_TYPE_MS_WORD, "application/msword"); addFileType("XLS", FILE_TYPE_MS_EXCEL, "application/vnd.ms-excel"); addFileType("PPT", FILE_TYPE_MS_POWERPOINT, "application/mspowerpoint"); addFileType("FLAC", FILE_TYPE_FLAC, "audio/flac"); addFileType("ZIP", FILE_TYPE_ZIP, "application/zip"); } 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)); } public static boolean isVideoFileType(int fileType) { return (fileType >= FIRST_VIDEO_FILE_TYPE && fileType <= LAST_VIDEO_FILE_TYPE); } 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()); } // ??????????????????? public static boolean isAudioFile(String path){ if(getFileType(path)==null){ return false; } return isAudioFileType(getFileType(path).fileType); } // ??????????????????? public static boolean isVideoFile(String path){ if(getFileType(path)==null){ return false; } return isVideoFileType(getFileType(path).fileType); } // ?????????????? public static boolean isMimeTypeMedia(String mimeType) { int fileType = getFileTypeForMimeType(mimeType); return isAudioFileType(fileType) || isVideoFileType(fileType) || isImageFileType(fileType) || isPlayListFileType(fileType); } // ?????????????????????????? public static String getFileTitle(String path) { int lastSlash = path.lastIndexOf('/'); if (lastSlash >= 0) { lastSlash++; if (lastSlash < path.length()) { path = path.substring(lastSlash); } } 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); } }