Added support for reading MP4 chapters
This commit is contained in:
daniel oeh
parent
4b1b271ca9
commit
1ebb209bc6
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@ -0,0 +1,16 @@
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FFmpegMediaMetadataRetriever: A unified interface for retrieving frame
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and meta data from an input media file.
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Copyright 2014 William Seemann
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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@ -79,4 +79,12 @@ licensed under the Apache 2.0 license <a href="LICENSE_OKHTTP.txt">(View)</a>
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<h2>Okio <a href="https://github.com/square/okio">(Link)</a></h2>
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licensed under the Apache 2.0 license <a href="LICENSE_OKIO.txt">(View)</a>
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<h2>FFmpegMediaMetadataRetriever <a href="https://github.com/wseemann/FFmpegMediaMetadataRetriever">(Link)</a></h2>
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licensed under the Apache 2.0 license <a href="LICENSE_FFMPEGMEDIAMETADATARETRIEVER.txt">(View)</a>
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<p>This software uses <a href="https://ffmpeg.org">FFmpeg</a> licensed under the <a href="http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html">
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LGPLv2.1</a> and its source can be downloaded <a href="https://github.com/wseemann/FFmpegMediaMetadataRetriever/blob/master/fmmr-library/ffmpeg-2.1-android-2013-11-13.tar.gz">here</a>.</p>
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</a>
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</html>
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@ -85,6 +85,7 @@ android {
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renderscript.srcDirs = ['src']
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res.srcDirs = ['res']
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assets.srcDirs = ['assets']
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jniLibs.srcDirs = ['jniLibs']
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}
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}
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@ -0,0 +1,27 @@
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package de.danoeh.antennapod.feed;
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import wseemann.media.FFmpegChapter;
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/**
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* Represents a chapter contained in a MP4 file.
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*/
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public class MP4Chapter extends Chapter {
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public static final int CHAPTERTYPE_MP4CHAPTER = 4;
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/**
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* Construct a MP4Chapter from an FFmpegChapter.
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*/
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public MP4Chapter(FFmpegChapter ch) {
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this.start = ch.getStart();
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this.title = ch.getTitle();
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}
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public MP4Chapter(long start, String title, FeedItem item, String link) {
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super(start, title, item, link);
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}
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@Override
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public int getChapterType() {
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return CHAPTERTYPE_MP4CHAPTER;
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}
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}
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@ -262,6 +262,9 @@ public final class DBReader {
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chapter = new VorbisCommentChapter(start,
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title, item, link);
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break;
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case MP4Chapter.CHAPTERTYPE_MP4CHAPTER:
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chapter = new MP4Chapter(start, title, item, link);
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break;
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}
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if (chapter != null) {
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chapter.setId(chapterCursor
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@ -3,17 +3,22 @@ package de.danoeh.antennapod.util;
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import android.util.Log;
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import de.danoeh.antennapod.BuildConfig;
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import de.danoeh.antennapod.feed.Chapter;
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import de.danoeh.antennapod.feed.MP4Chapter;
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import de.danoeh.antennapod.util.comparator.ChapterStartTimeComparator;
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import de.danoeh.antennapod.util.id3reader.ChapterReader;
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import de.danoeh.antennapod.util.id3reader.ID3ReaderException;
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import de.danoeh.antennapod.util.playback.Playable;
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import de.danoeh.antennapod.util.vorbiscommentreader.VorbisCommentChapterReader;
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import de.danoeh.antennapod.util.vorbiscommentreader.VorbisCommentReaderException;
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import wseemann.media.FFmpegChapter;
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import wseemann.media.FFmpegMediaMetadataRetriever;
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import org.apache.commons.io.IOUtils;
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import java.io.*;
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import java.net.MalformedURLException;
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import java.net.URL;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.List;
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@ -190,6 +195,30 @@ public class ChapterUtils {
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}
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}
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private static void readMP4ChaptersFromFileUrl(Playable p) {
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if (!FFmpegMediaMetadataRetriever.LIB_AVAILABLE) {
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if (BuildConfig.DEBUG) Log.d(TAG, "FFmpegMediaMetadataRetriever not available on this architecture");
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return;
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}
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if (BuildConfig.DEBUG) Log.d(TAG, "Trying to read mp4 chapters from file " + p.getEpisodeTitle());
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FFmpegMediaMetadataRetriever retriever = new FFmpegMediaMetadataRetriever();
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retriever.setDataSource(p.getLocalMediaUrl());
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FFmpegChapter[] res = retriever.getChapters();
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retriever.release();
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if (res != null) {
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List<Chapter> chapters = new ArrayList<Chapter>();
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for (FFmpegChapter fFmpegChapter : res) {
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chapters.add(new MP4Chapter(fFmpegChapter));
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}
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Collections.sort(chapters, new ChapterStartTimeComparator());
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processChapters(chapters, p);
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p.setChapters(chapters);
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} else {
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if (BuildConfig.DEBUG) Log.d(TAG, "No mp4 chapters found in " + p.getEpisodeTitle());
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}
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}
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/** Makes sure that chapter does a title and an item attribute. */
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private static void processChapters(List<Chapter> chapters, Playable p) {
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for (int i = 0; i < chapters.size(); i++) {
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@ -254,6 +283,9 @@ public class ChapterUtils {
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if (media.getChapters() == null) {
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ChapterUtils.readOggChaptersFromPlayableFileUrl(media);
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}
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if (media.getChapters() == null) {
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ChapterUtils.readMP4ChaptersFromFileUrl(media);
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}
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} else {
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Log.e(TAG, "Could not load chapters from file url: local file not available");
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}
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@ -0,0 +1,29 @@
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package wseemann.media;
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/**
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* Represents a chapter mark returned by FFmpegMediaMetadataRetriever.
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* */
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public class FFmpegChapter
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{
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private int id;
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private String title;
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private long start;
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public FFmpegChapter(int id, String title, long start) {
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this.id = id;
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this.title = title;
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this.start = start;
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}
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public int getId() {
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return id;
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}
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public String getTitle() {
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return title;
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}
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public long getStart() {
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return start;
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}
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}
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@ -0,0 +1,595 @@
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/*
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* FFmpegMediaMetadataRetriever: A unified interface for retrieving frame
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* and meta data from an input media file.
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*
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* Copyright 2014 William Seemann
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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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*
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* Changes by Daniel Oeh:
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* - Rewrite of the 'static' section
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* - Addition of 'getChapters' method
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*
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*/
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package wseemann.media;
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import android.annotation.SuppressLint;
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import android.content.ContentResolver;
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import android.content.Context;
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import android.content.res.AssetFileDescriptor;
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import android.graphics.Bitmap;
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import android.graphics.BitmapFactory;
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import android.net.Uri;
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import android.util.Log;
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import java.io.File;
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import java.io.FileDescriptor;
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import java.io.FileNotFoundException;
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import java.io.IOException;
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import java.util.Map;
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/**
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* FFmpegMediaMetadataRetriever class provides a unified interface for retrieving
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* frame and meta data from an input media file.
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*/
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public class FFmpegMediaMetadataRetriever
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{
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private final static String TAG = "FFmpegMediaMetadataRetriever";
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public static boolean LIB_AVAILABLE = false;
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/**
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* User defined bitmap configuration. A bitmap configuration describes how pixels are
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* stored. This affects the quality (color depth) as well as the ability to display
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* transparent/translucent colors.
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*/
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public static Bitmap.Config IN_PREFERRED_CONFIG;
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@SuppressLint("SdCardPath")
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private static final String LIBRARY_PATH = "/data/data/";
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private static final String [] JNI_LIBRARIES = {
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"avutil",
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"swscale",
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"avcodec",
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"avformat",
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"ffmpeg_mediametadataretriever_jni"
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};
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static {
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/*
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StackTraceElement[] stackTraceElements = Thread.currentThread().getStackTrace();
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StringBuffer path = null;
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File file = null;
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boolean foundLibs = false;
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for (int j = 0; j < stackTraceElements.length; j++) {
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String libraryPath = stackTraceElements[j].getClassName();
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String [] packageFragments = libraryPath.trim().split("\\.");
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path = new StringBuffer(LIBRARY_PATH);
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for (int i = 0; i < packageFragments.length; i++) {
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if (i > 0) {
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path.append(".");
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}
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path.append(packageFragments[i]);
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try {
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//System.load(path.toString() + "/lib/" + JNI_LIBRARIES[0]);
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file = new File(path.toString() + "/lib/" + JNI_LIBRARIES[0]);
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if (file.exists()) {
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path.append("/lib/");
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foundLibs = true;
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break;
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}
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} catch (UnsatisfiedLinkError ex) {
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}
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}
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if (foundLibs) {
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break;
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}
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}
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// Since libraries for some architectures have been excluded from the source in order to save
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// space, this class might not work on all devices.
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if (!foundLibs) {
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Log.e(TAG, TAG + " libraries not found. Did you forget to add them to your libs folder?");
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//throw new UnsatisfiedLinkError();
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LIB_AVAILABLE = false;
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} else {
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LIB_AVAILABLE = true;
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for (int i = 0; i < JNI_LIBRARIES.length; i++) {
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System.load(path.toString() + JNI_LIBRARIES[i]);
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}
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native_init();
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}*/
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try {
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for (int i = 0; i < JNI_LIBRARIES.length; i++) {
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System.loadLibrary(JNI_LIBRARIES[i]);
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}
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LIB_AVAILABLE = true;
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native_init();
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} catch (UnsatisfiedLinkError e) {
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Log.e(TAG, "Library not found");
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LIB_AVAILABLE = false;
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}
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}
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// The field below is accessed by native methods
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private int mNativeContext;
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public FFmpegMediaMetadataRetriever() {
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native_setup();
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}
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/**
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* Sets the data source (file pathname) to use. Call this
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* method before the rest of the methods in this class. This method may be
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* time-consuming.
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*
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* @param path The path of the input media file.
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* @throws IllegalArgumentException If the path is invalid.
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*/
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public native void setDataSource(String path) throws IllegalArgumentException;
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/**
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* Sets the data source (URI) to use. Call this
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* method before the rest of the methods in this class. This method may be
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* time-consuming.
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*
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* @param uri The URI of the input media.
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* @param headers the headers to be sent together with the request for the data
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* @throws IllegalArgumentException If the URI is invalid.
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*/
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public void setDataSource(String uri, Map<String, String> headers)
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throws IllegalArgumentException {
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int i = 0;
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String[] keys = new String[headers.size()];
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String[] values = new String[headers.size()];
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for (Map.Entry<String, String> entry: headers.entrySet()) {
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keys[i] = entry.getKey();
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values[i] = entry.getValue();
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++i;
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}
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_setDataSource(uri, keys, values);
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}
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private native void _setDataSource(
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String uri, String[] keys, String[] values)
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throws IllegalArgumentException;
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/**
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* Sets the data source (FileDescriptor) to use. It is the caller's
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* responsibility to close the file descriptor. It is safe to do so as soon
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* as this call returns. Call this method before the rest of the methods in
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* this class. This method may be time-consuming.
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*
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* @param fd the FileDescriptor for the file you want to play
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* @param offset the offset into the file where the data to be played starts,
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* in bytes. It must be non-negative
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* @param length the length in bytes of the data to be played. It must be
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* non-negative.
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* @throws IllegalArgumentException if the arguments are invalid
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*/
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public native void setDataSource(FileDescriptor fd, long offset, long length)
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throws IllegalArgumentException;
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/**
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* Sets the data source (FileDescriptor) to use. It is the caller's
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* responsibility to close the file descriptor. It is safe to do so as soon
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* as this call returns. Call this method before the rest of the methods in
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* this class. This method may be time-consuming.
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*
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* @param fd the FileDescriptor for the file you want to play
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* @throws IllegalArgumentException if the FileDescriptor is invalid
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*/
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public void setDataSource(FileDescriptor fd)
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throws IllegalArgumentException {
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// intentionally less than LONG_MAX
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setDataSource(fd, 0, 0x7ffffffffffffffL);
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}
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/**
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* Sets the data source as a content Uri. Call this method before
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* the rest of the methods in this class. This method may be time-consuming.
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*
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* @param context the Context to use when resolving the Uri
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* @param uri the Content URI of the data you want to play
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* @throws IllegalArgumentException if the Uri is invalid
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* @throws SecurityException if the Uri cannot be used due to lack of
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* permission.
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*/
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public void setDataSource(Context context, Uri uri)
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throws IllegalArgumentException, SecurityException {
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if (uri == null) {
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throw new IllegalArgumentException();
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}
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String scheme = uri.getScheme();
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if(scheme == null || scheme.equals("file")) {
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setDataSource(uri.getPath());
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return;
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}
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AssetFileDescriptor fd = null;
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try {
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ContentResolver resolver = context.getContentResolver();
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try {
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fd = resolver.openAssetFileDescriptor(uri, "r");
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} catch(FileNotFoundException e) {
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throw new IllegalArgumentException();
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}
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if (fd == null) {
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throw new IllegalArgumentException();
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}
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FileDescriptor descriptor = fd.getFileDescriptor();
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if (!descriptor.valid()) {
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throw new IllegalArgumentException();
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}
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// Note: using getDeclaredLength so that our behavior is the same
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// as previous versions when the content provider is returning
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// a full file.
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if (fd.getDeclaredLength() < 0) {
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setDataSource(descriptor);
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} else {
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setDataSource(descriptor, fd.getStartOffset(), fd.getDeclaredLength());
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}
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return;
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} catch (SecurityException ex) {
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} finally {
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try {
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if (fd != null) {
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fd.close();
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}
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} catch(IOException ioEx) {
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}
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}
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setDataSource(uri.toString());
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}
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/**
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* Call this method after setDataSource(). This method retrieves the
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* meta data value associated with the keyCode.
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*
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* The keyCode currently supported is listed below as METADATA_XXX
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* constants. With any other value, it returns a null pointer.
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*
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* @param keyCode One of the constants listed below at the end of the class.
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* @return The meta data value associate with the given keyCode on success;
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* null on failure.
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*/
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public native String extractMetadata(String key);
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/**
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* Call this method after setDataSource(). This method finds a
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* representative frame close to the given time position by considering
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* the given option if possible, and returns it as a bitmap. This is
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* useful for generating a thumbnail for an input data source or just
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* obtain and display a frame at the given time position.
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*
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* @param timeUs The time position where the frame will be retrieved.
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* When retrieving the frame at the given time position, there is no
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* guarantee that the data source has a frame located at the position.
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* When this happens, a frame nearby will be returned. If timeUs is
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* negative, time position and option will ignored, and any frame
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* that the implementation considers as representative may be returned.
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*
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* @param option a hint on how the frame is found. Use
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* {@link #OPTION_PREVIOUS_SYNC} if one wants to retrieve a sync frame
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* that has a timestamp earlier than or the same as timeUs. Use
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* {@link #OPTION_NEXT_SYNC} if one wants to retrieve a sync frame
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* that has a timestamp later than or the same as timeUs. Use
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* {@link #OPTION_CLOSEST_SYNC} if one wants to retrieve a sync frame
|
||||
* that has a timestamp closest to or the same as timeUs. Use
|
||||
* {@link #OPTION_CLOSEST} if one wants to retrieve a frame that may
|
||||
* or may not be a sync frame but is closest to or the same as timeUs.
|
||||
* {@link #OPTION_CLOSEST} often has larger performance overhead compared
|
||||
* to the other options if there is no sync frame located at timeUs.
|
||||
*
|
||||
* @return A Bitmap containing a representative video frame, which
|
||||
* can be null, if such a frame cannot be retrieved.
|
||||
*/
|
||||
public Bitmap getFrameAtTime(long timeUs, int option) {
|
||||
if (option < OPTION_PREVIOUS_SYNC ||
|
||||
option > OPTION_CLOSEST) {
|
||||
throw new IllegalArgumentException("Unsupported option: " + option);
|
||||
}
|
||||
|
||||
Bitmap b = null;
|
||||
|
||||
BitmapFactory.Options bitmapOptionsCache = new BitmapFactory.Options();
|
||||
bitmapOptionsCache.inPreferredConfig = getInPreferredConfig();
|
||||
bitmapOptionsCache.inDither = false;
|
||||
|
||||
byte [] picture = _getFrameAtTime(timeUs, option);
|
||||
|
||||
if (picture != null) {
|
||||
b = BitmapFactory.decodeByteArray(picture, 0, picture.length, bitmapOptionsCache);
|
||||
}
|
||||
|
||||
return b;
|
||||
}
|
||||
|
||||
/**
|
||||
* Call this method after setDataSource(). This method finds a
|
||||
* representative frame close to the given time position if possible,
|
||||
* and returns it as a bitmap. This is useful for generating a thumbnail
|
||||
* for an input data source. Call this method if one does not care
|
||||
* how the frame is found as long as it is close to the given time;
|
||||
* otherwise, please call {@link #getFrameAtTime(long, int)}.
|
||||
*
|
||||
* @param timeUs The time position where the frame will be retrieved.
|
||||
* When retrieving the frame at the given time position, there is no
|
||||
* guarentee that the data source has a frame located at the position.
|
||||
* When this happens, a frame nearby will be returned. If timeUs is
|
||||
* negative, time position and option will ignored, and any frame
|
||||
* that the implementation considers as representative may be returned.
|
||||
*
|
||||
* @return A Bitmap containing a representative video frame, which
|
||||
* can be null, if such a frame cannot be retrieved.
|
||||
*
|
||||
* @see #getFrameAtTime(long, int)
|
||||
*/
|
||||
public Bitmap getFrameAtTime(long timeUs) {
|
||||
Bitmap b = null;
|
||||
|
||||
BitmapFactory.Options bitmapOptionsCache = new BitmapFactory.Options();
|
||||
bitmapOptionsCache.inPreferredConfig = getInPreferredConfig();
|
||||
bitmapOptionsCache.inDither = false;
|
||||
|
||||
byte [] picture = _getFrameAtTime(timeUs, OPTION_CLOSEST_SYNC);
|
||||
|
||||
if (picture != null) {
|
||||
b = BitmapFactory.decodeByteArray(picture, 0, picture.length, bitmapOptionsCache);
|
||||
}
|
||||
|
||||
return b;
|
||||
}
|
||||
|
||||
/**
|
||||
* Call this method after setDataSource(). This method finds a
|
||||
* representative frame at any time position if possible,
|
||||
* and returns it as a bitmap. This is useful for generating a thumbnail
|
||||
* for an input data source. Call this method if one does not
|
||||
* care about where the frame is located; otherwise, please call
|
||||
* {@link #getFrameAtTime(long)} or {@link #getFrameAtTime(long, int)}
|
||||
*
|
||||
* @return A Bitmap containing a representative video frame, which
|
||||
* can be null, if such a frame cannot be retrieved.
|
||||
*
|
||||
* @see #getFrameAtTime(long)
|
||||
* @see #getFrameAtTime(long, int)
|
||||
*/
|
||||
public Bitmap getFrameAtTime() {
|
||||
return getFrameAtTime(-1, OPTION_CLOSEST_SYNC);
|
||||
}
|
||||
|
||||
/**
|
||||
* Call this method after setDataSource(). This method finds any
|
||||
* chapter marks that are contained in the media file.
|
||||
*
|
||||
* @return An array of FFmpegChapter objects or null if no chapters
|
||||
* could be found.
|
||||
* */
|
||||
public native FFmpegChapter[] getChapters();
|
||||
|
||||
private native byte [] _getFrameAtTime(long timeUs, int option);
|
||||
|
||||
/**
|
||||
* Call this method after setDataSource(). This method finds the optional
|
||||
* graphic or album/cover art associated associated with the data source. If
|
||||
* there are more than one pictures, (any) one of them is returned.
|
||||
*
|
||||
* @return null if no such graphic is found.
|
||||
*/
|
||||
public native byte[] getEmbeddedPicture();
|
||||
|
||||
/**
|
||||
* Call it when one is done with the object. This method releases the memory
|
||||
* allocated internally.
|
||||
*/
|
||||
public native void release();
|
||||
private native void native_setup();
|
||||
private static native void native_init();
|
||||
|
||||
private native final void native_finalize();
|
||||
|
||||
@Override
|
||||
protected void finalize() throws Throwable {
|
||||
try {
|
||||
native_finalize();
|
||||
} finally {
|
||||
super.finalize();
|
||||
}
|
||||
}
|
||||
|
||||
private Bitmap.Config getInPreferredConfig() {
|
||||
if (IN_PREFERRED_CONFIG != null) {
|
||||
return IN_PREFERRED_CONFIG;
|
||||
}
|
||||
|
||||
return Bitmap.Config.RGB_565;
|
||||
}
|
||||
|
||||
/**
|
||||
* Option used in method {@link #getFrameAtTime(long, int)} to get a
|
||||
* frame at a specified location.
|
||||
*
|
||||
* @see #getFrameAtTime(long, int)
|
||||
*/
|
||||
/* Do not change these option values without updating their counterparts
|
||||
* in jni/metadata/ffmpeg_mediametadataretriever.h!
|
||||
*/
|
||||
/**
|
||||
* This option is used with {@link #getFrameAtTime(long, int)} to retrieve
|
||||
* a sync (or key) frame associated with a data source that is located
|
||||
* right before or at the given time.
|
||||
*
|
||||
* @see #getFrameAtTime(long, int)
|
||||
*/
|
||||
public static final int OPTION_PREVIOUS_SYNC = 0x00;
|
||||
/**
|
||||
* This option is used with {@link #getFrameAtTime(long, int)} to retrieve
|
||||
* a sync (or key) frame associated with a data source that is located
|
||||
* right after or at the given time.
|
||||
*
|
||||
* @see #getFrameAtTime(long, int)
|
||||
*/
|
||||
public static final int OPTION_NEXT_SYNC = 0x01;
|
||||
/**
|
||||
* This option is used with {@link #getFrameAtTime(long, int)} to retrieve
|
||||
* a sync (or key) frame associated with a data source that is located
|
||||
* closest to (in time) or at the given time.
|
||||
*
|
||||
* @see #getFrameAtTime(long, int)
|
||||
*/
|
||||
public static final int OPTION_CLOSEST_SYNC = 0x02;
|
||||
/**
|
||||
* This option is used with {@link #getFrameAtTime(long, int)} to retrieve
|
||||
* a frame (not necessarily a key frame) associated with a data source that
|
||||
* is located closest to or at the given time.
|
||||
*
|
||||
* @see #getFrameAtTime(long, int)
|
||||
*/
|
||||
public static final int OPTION_CLOSEST = 0x03;
|
||||
|
||||
/**
|
||||
* The metadata key to retrieve the name of the set this work belongs to.
|
||||
*/
|
||||
public static final String METADATA_KEY_ALBUM = "album";
|
||||
/**
|
||||
* The metadata key to retrieve the main creator of the set/album, if different
|
||||
* from artist. e.g. "Various Artists" for compilation albums.
|
||||
*/
|
||||
public static final String METADATA_KEY_ALBUM_ARTIST = "album_artist";
|
||||
/**
|
||||
* The metadata key to retrieve the main creator of the work.
|
||||
*/
|
||||
public static final String METADATA_KEY_ARTIST = "artist";
|
||||
/**
|
||||
* The metadata key to retrieve the any additional description of the file.
|
||||
*/
|
||||
public static final String METADATA_KEY_COMMENT = "comment";
|
||||
/**
|
||||
* The metadata key to retrieve the who composed the work, if different from artist.
|
||||
*/
|
||||
public static final String METADATA_KEY_COMPOSER = "composer";
|
||||
/**
|
||||
* The metadata key to retrieve the name of copyright holder.
|
||||
*/
|
||||
public static final String METADATA_KEY_COPYRIGHT = "copyright";
|
||||
/**
|
||||
* The metadata key to retrieve the date when the file was created, preferably in ISO 8601.
|
||||
*/
|
||||
public static final String METADATA_KEY_CREATION_TIME = "creation_time";
|
||||
/**
|
||||
* The metadata key to retrieve the date when the work was created, preferably in ISO 8601.
|
||||
*/
|
||||
public static final String METADATA_KEY_DATE = "date";
|
||||
/**
|
||||
* The metadata key to retrieve the number of a subset, e.g. disc in a multi-disc collection.
|
||||
*/
|
||||
public static final String METADATA_KEY_DISC = "disc";
|
||||
/**
|
||||
* The metadata key to retrieve the name/settings of the software/hardware that produced the file.
|
||||
*/
|
||||
public static final String METADATA_KEY_ENCODER = "encoder";
|
||||
/**
|
||||
* The metadata key to retrieve the person/group who created the file.
|
||||
*/
|
||||
public static final String METADATA_KEY_ENCODED_BY = "encoded_by";
|
||||
/**
|
||||
* The metadata key to retrieve the original name of the file.
|
||||
*/
|
||||
public static final String METADATA_KEY_FILENAME = "filename";
|
||||
/**
|
||||
* The metadata key to retrieve the genre of the work.
|
||||
*/
|
||||
public static final String METADATA_KEY_GENRE = "genre";
|
||||
/**
|
||||
* The metadata key to retrieve the main language in which the work is performed, preferably
|
||||
* in ISO 639-2 format. Multiple languages can be specified by separating them with commas.
|
||||
*/
|
||||
public static final String METADATA_KEY_LANGUAGE = "language";
|
||||
/**
|
||||
* The metadata key to retrieve the artist who performed the work, if different from artist.
|
||||
* E.g for "Also sprach Zarathustra", artist would be "Richard Strauss" and performer "London
|
||||
* Philharmonic Orchestra".
|
||||
*/
|
||||
public static final String METADATA_KEY_PERFORMER = "performer";
|
||||
/**
|
||||
* The metadata key to retrieve the name of the label/publisher.
|
||||
*/
|
||||
public static final String METADATA_KEY_PUBLISHER = "publisher";
|
||||
/**
|
||||
* The metadata key to retrieve the name of the service in broadcasting (channel name).
|
||||
*/
|
||||
public static final String METADATA_KEY_SERVICE_NAME = "service_name";
|
||||
/**
|
||||
* The metadata key to retrieve the name of the service provider in broadcasting.
|
||||
*/
|
||||
public static final String METADATA_KEY_SERVICE_PROVIDER = "service_provider";
|
||||
/**
|
||||
* The metadata key to retrieve the name of the work.
|
||||
*/
|
||||
public static final String METADATA_KEY_TITLE = "title";
|
||||
/**
|
||||
* The metadata key to retrieve the number of this work in the set, can be in form current/total.
|
||||
*/
|
||||
public static final String METADATA_KEY_TRACK = "track";
|
||||
/**
|
||||
* The metadata key to retrieve the total bitrate of the bitrate variant that the current stream
|
||||
* is part of.
|
||||
*/
|
||||
public static final String METADATA_KEY_VARIANT_BITRATE = "bitrate";
|
||||
/**
|
||||
* The metadata key to retrieve the duration of the work in milliseconds.
|
||||
*/
|
||||
public static final String METADATA_KEY_DURATION = "duration";
|
||||
/**
|
||||
* The metadata key to retrieve the audio codec of the work.
|
||||
*/
|
||||
public static final String METADATA_KEY_AUDIO_CODEC = "audio_codec";
|
||||
/**
|
||||
* The metadata key to retrieve the video codec of the work.
|
||||
*/
|
||||
public static final String METADATA_KEY_VIDEO_CODEC = "video_codec";
|
||||
/**
|
||||
* This key retrieves the video rotation angle in degrees, if available.
|
||||
* The video rotation angle may be 0, 90, 180, or 270 degrees.
|
||||
*/
|
||||
public static final String METADATA_KEY_VIDEO_ROTATION = "rotate";
|
||||
/**
|
||||
* The metadata key to retrieve the main creator of the work.
|
||||
*/
|
||||
public static final String METADATA_KEY_ICY_METADATA = "icy_metadata";
|
||||
/**
|
||||
* The metadata key to retrieve the main creator of the work.
|
||||
*/
|
||||
//private static final String METADATA_KEY_ICY_ARTIST = "icy_artist";
|
||||
/**
|
||||
* The metadata key to retrieve the name of the work.
|
||||
*/
|
||||
//private static final String METADATA_KEY_ICY_TITLE = "icy_title";
|
||||
/**
|
||||
* This metadata key retrieves the average framerate (in frames/sec), if available.
|
||||
*/
|
||||
public static final String METADATA_KEY_FRAMERATE = "framerate";
|
||||
}
|
||||
Loading…
Reference in New Issue