/*
* myLib - https://github.com/taktod/myLib
* Copyright (c) 2014 ttProject. All rights reserved.
*
* Licensed under The MIT license.
*/
package com.ttProject.container.mkv;
import java.io.FileOutputStream;
import java.nio.ByteBuffer;
import java.nio.channels.WritableByteChannel;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.log4j.Logger;
import com.ttProject.container.IContainer;
import com.ttProject.container.IWriter;
import com.ttProject.container.mkv.type.Cluster;
import com.ttProject.container.mkv.type.EBML;
import com.ttProject.container.mkv.type.Info;
import com.ttProject.container.mkv.type.Seek;
import com.ttProject.container.mkv.type.SeekHead;
import com.ttProject.container.mkv.type.Segment;
import com.ttProject.container.mkv.type.SimpleTag;
import com.ttProject.container.mkv.type.Tag;
import com.ttProject.container.mkv.type.Tags;
import com.ttProject.container.mkv.type.Targets;
import com.ttProject.container.mkv.type.TrackEntry;
import com.ttProject.container.mkv.type.Tracks;
import com.ttProject.container.mkv.type.Void;
import com.ttProject.frame.CodecType;
import com.ttProject.frame.IAudioFrame;
import com.ttProject.frame.IFrame;
import com.ttProject.frame.IVideoFrame;
import com.ttProject.frame.extra.AudioMultiFrame;
import com.ttProject.frame.extra.VideoMultiFrame;
/**
* mkvTagWriter
*
* mkvを作成するためのwriter
* とりあえず、headerの部分はできたつもり、次はCluster
* Clusterはまとまり分できたら一気に出力するという形にしないとだめっぽいですね。
* ffmpegの出力のmkvをみてみたけど、別にkeyFrameからはじまらないとだめということはないみたいですね。
* timediffは線形増加になっているので、転置が発生するとまずいかもしれませんね。
*
* 一応、keyFrame間隔をベースにつくっておいた方がシークとしては、有利に働きそうだが・・・
* とりあえず、h264 + aacのデータを再生成させて、再生できるところまでもっていきたいね。
*
* keyFrame間隔にしようとするとマルチトラックで複数の映像フレームがあるときにややこしくなりそう。
* よって、単に時間ベースにしておこうと思います。
* 0.25秒ごとみたいな。
*
* cuesの動作について
* 同じsegmentに属しているデータへのリンクを保持している感じ。
* segmentのtagIdとtagSizeを抜いた部分からの相対位置を保持しているらしいです。
* よってpositionとして、先頭からのデータ量をもっていても意味がないっぽいですね。
* cuesはcuesのtimestamp情報(任意っぽいです。)
* trackId情報(参照したいtrackId、映像コーデックのものにしておけば間違いなさそう)
* clusterPosition(クラスタの位置情報、実際のデータの位置ではなく、clusterの位置っぽいです)
* となっているみたいですね。
*
* とりあえず、それぞれのclusterが1keyFrameから次のkeyFrameまでの集まりみたいにしておけば、cuesは毎回クラスタの先頭になるし(なお全frameを動向というわけではないみたいです。適当なtimestampが適当なところからはじまるようになっていればいいみたい。)
*
* clusterにcodecTypeの情報をのせておく方がよくて、そのcodecTypeのデータがすべて過ぎ去ったら、書き込みする。という形にしておけばよくなりそう。
* 現状では、すべてのcodecTypeがそろう前に登録をしたり書き込みしたりするのが問題で、かつ属するclusterがみつからないことがあるのも問題っぽい。
* 書き込み開始までは、放置にしておく。
* 書き込み開始した瞬間にすべてのクラスタに必要なデータについて登録するようにしておく。
* まだ未登録のtrackについて書き込みor終了データがくるまで放置しないとだめ。
* @author taktod
*/
public class MkvTagWriter implements IWriter {
/** logger */
private Logger logger = Logger.getLogger(MkvTagWriter.class);
/** segmentの位置からの位置(cuesやseekHeadで利用する) */
@SuppressWarnings("unused")
private long segmentPos = 0;
private long position = 0;
private final WritableByteChannel outputChannel;
private FileOutputStream outputStream = null;
private SeekHead seekHead = null;
private Info info = null;
private Tracks tracks = null;
private Tags tags = null;
private long defaultTimebase = 1000;
// ライブストリームとして動作することを考慮すると、seekHead、info、tracks、tagsの情報はよこから取得できるようになっていると有利になりそう
// またclusterの作成を実施した時点で、そのデータを出力として取り上げることができると助かるけど・・・
// trackEntryのデータを保持しておいて、frameを取得したときに、対応するtrackEntryの詳細情報を構築するようにしむける
/** trackEntryの紐付け用の一時データ */
private List<TrackEntry> trackEntries = new ArrayList<TrackEntry>();
/** 追加frameがどのtrackEntryであるかのmap保持(これ必要ないかもしれませんね。再生中にtrackEntryのデータを参照する必要ないのでは？) */
private Map<Integer, TrackEntry> trackEntryMap = new HashMap<Integer, TrackEntry>();
/** 処理候補のclusterリスト */
private List<Cluster> clusterList = new ArrayList<Cluster>();
private long nextClusterPts = 0; // 次のclusterの位置情報
/*
* 必要であろう、エレメントリスト
06:25:14,113 [main] INFO [MkvTagReader] - EBML size:23*
06:25:14,111 [main] INFO [MkvTagReader] - EBMLVersion size:1 uint:1
06:25:14,112 [main] INFO [MkvTagReader] - EBMLReadVersion size:1 uint:1
06:25:14,112 [main] INFO [MkvTagReader] - EBMLMaxIDLength size:1 uint:4
06:25:14,112 [main] INFO [MkvTagReader] - EBMLMaxSizeLength size:1 uint:8
06:25:14,113 [main] INFO [MkvTagReader] - DocType size:8 string:matroska : webmだったら別の名前になる。
06:25:14,113 [main] INFO [MkvTagReader] - DocTypeVersion size:1 uint:2
06:25:14,113 [main] INFO [MkvTagReader] - DocTypeReadVersion size:1 uint:2
06:25:14,114 [main] INFO [MkvTagReader] - Segment size:5a1f*
06:25:14,117 [main] INFO [MkvTagReader] - SeekHead size:3b*
06:25:14,115 [main] INFO [MkvTagReader] - Seek size:b*
06:25:14,115 [main] INFO [MkvTagReader] - SeekID size:4 binary:4 // 対象のmkvのtag名みたい
06:25:14,115 [main] INFO [MkvTagReader] - SeekPosition size:1 uint:223 // mkvのtagのsizeを読み終わった場所からの相対位置っぽい。
06:25:14,116 [main] INFO [MkvTagReader] - Seek size:c*
06:25:14,115 [main] INFO [MkvTagReader] - SeekID size:4 binary:4
06:25:14,116 [main] INFO [MkvTagReader] - SeekPosition size:2 uint:302
06:25:14,117 [main] INFO [MkvTagReader] - Seek size:c*
06:25:14,116 [main] INFO [MkvTagReader] - SeekID size:4 binary:4
06:25:14,116 [main] INFO [MkvTagReader] - SeekPosition size:2 uint:489
06:25:14,117 [main] INFO [MkvTagReader] - Seek size:c*
06:25:14,117 [main] INFO [MkvTagReader] - SeekID size:4 binary:4
06:25:14,117 [main] INFO [MkvTagReader] - SeekPosition size:2 uint:22957
06:25:14,118 [main] INFO [MkvTagReader] - (Void size:95)
06:25:14,121 [main] INFO [MkvTagReader] - Info size:43*
06:25:14,119 [main] INFO [MkvTagReader] - TimecodeScale size:3 uint:1000000
06:25:14,119 [main] INFO [MkvTagReader] - MuxingApp size:c string:Lavf54.2.100
06:25:14,119 [main] INFO [MkvTagReader] - WritingApp size:c string:Lavf54.2.100
06:25:14,119 [main] INFO [MkvTagReader] - SegmentUID size:10 binary:10 (ランダムでOKっぽい)
06:25:14,121 [main] INFO [MkvTagReader] - Duration size:8 float:913.0 (ライブならスキップでOKか？)一応voidいれておいてtailerで書き込むようにしておくべし、timescaleに会わせたデータ設定にする必要があるっぽい。ここでは0.913秒になってる
06:25:14,152 [main] INFO [MkvTagReader] - Tracks size:af*
06:25:14,126 [main] INFO [MkvTagReader] - TrackEntry size:64*
06:25:14,123 [main] INFO [MkvTagReader] - TrackNumber size:1 uint:1(この数値はSimpleBlockと一致させる必要あり)
06:25:14,123 [main] INFO [MkvTagReader] - TrackUID size:1 uint:1 (ランダムでOKっぽい)
06:25:14,123 [main] INFO [MkvTagReader] - FlagLacing size:1 uint:0 (いらないだろ)(デフォでONなのでOFF強制するなら必要)
06:25:14,123 [main] INFO [MkvTagReader] - Language size:3 string:und
06:25:14,124 [main] INFO [MkvTagReader] - CodecID size:f string:V_MPEG4/ISO/AVC
06:25:14,124 [main] INFO [MkvTagReader] - TrackType size:1 uint:1
06:25:14,124 [main] INFO [MkvTagReader] - DefaultDuration size:3 uint:1000000 fpsを知るために必要っぽい
06:25:14,125 [main] INFO [MkvTagReader] - Video size:7*
06:25:14,125 [main] INFO [MkvTagReader] - PixelWidth size:2 uint:320
06:25:14,125 [main] INFO [MkvTagReader] - PixelHeight size:1 uint:240
06:25:14,125 [main] INFO [MkvTagReader] - CodecPrivate size:25 binary:25
06:25:14,147 [main] INFO [MkvTagReader] - TrackEntry size:39*
06:25:14,145 [main] INFO [MkvTagReader] - TrackNumber size:1 uint:2
06:25:14,145 [main] INFO [MkvTagReader] - TrackUID size:1 uint:2
06:25:14,145 [main] INFO [MkvTagReader] - FlagLacing size:1 uint:0
06:25:14,145 [main] INFO [MkvTagReader] - Language size:3 string:und
06:25:14,146 [main] INFO [MkvTagReader] - CodecID size:9 string:A_MPEG/L3
06:25:14,146 [main] INFO [MkvTagReader] - TrackType size:1 uint:2
06:25:14,147 [main] INFO [MkvTagReader] - Audio size:11*
06:25:14,146 [main] INFO [MkvTagReader] - Channels size:1 uint:2
06:25:14,147 [main] INFO [MkvTagReader] - SamplingFrequency size:8 float:44100.0
06:25:14,147 [main] INFO [MkvTagReader] - BitDepth size:1 uint:32
06:25:14,154 [main] INFO [MkvTagReader] - Tags size:37*
06:25:14,154 [main] INFO [MkvTagReader] - Tag size:2d*
06:25:14,153 [main] INFO [MkvTagReader] - Targets size:0*
06:25:14,154 [main] INFO [MkvTagReader] - SimpleTag size:19*
06:25:14,154 [main] INFO [MkvTagReader] - TagName size:7 string:ENCODER
06:25:14,154 [main] INFO [MkvTagReader] - TagString size:c string:Lavf54.2.100
06:25:14,155 [main] INFO [MkvTagReader] - Cluster size:177f*
06:25:14,155 [main] INFO [MkvTagReader] - Timecode size:1 uint:0
06:25:14,156 [main] INFO [MkvTagReader] - SimpleBlock size:4b4 binary:4b0 trackId:1 timeDiff:0
06:25:14,157 [main] INFO [MkvTagReader] - SimpleBlock size:13d binary:139 trackId:2 timeDiff:0
06:25:14,157 [main] INFO [MkvTagReader] - SimpleBlock size:c9 binary:c5 trackId:1 timeDiff:25
06:25:14,157 [main] INFO [MkvTagReader] - SimpleBlock size:13e binary:13a trackId:2 timeDiff:25
06:25:14,158 [main] INFO [MkvTagReader] - SimpleBlock size:111 binary:10d trackId:1 timeDiff:50
06:25:14,158 [main] INFO [MkvTagReader] - SimpleBlock size:13d binary:139 trackId:2 timeDiff:51
06:25:14,158 [main] INFO [MkvTagReader] - SimpleBlock size:e6 binary:e2 trackId:1 timeDiff:75
06:25:14,159 [main] INFO [MkvTagReader] - SimpleBlock size:13e binary:13a trackId:2 timeDiff:77
06:25:14,159 [main] INFO [MkvTagReader] - SimpleBlock size:b2 binary:ae trackId:1 timeDiff:100
06:25:14,159 [main] INFO [MkvTagReader] - SimpleBlock size:13d binary:139 trackId:2 timeDiff:103
06:25:14,160 [main] INFO [MkvTagReader] - SimpleBlock size:249 binary:245 trackId:1 timeDiff:125
06:25:14,160 [main] INFO [MkvTagReader] - SimpleBlock size:13e binary:13a trackId:2 timeDiff:129
06:25:14,160 [main] INFO [MkvTagReader] - SimpleBlock size:f5 binary:f1 trackId:1 timeDiff:150
06:25:14,161 [main] INFO [MkvTagReader] - SimpleBlock size:13d binary:139 trackId:2 timeDiff:156
06:25:14,161 [main] INFO [MkvTagReader] - SimpleBlock size:fa binary:f6 trackId:1 timeDiff:175
06:25:14,161 [main] INFO [MkvTagReader] - SimpleBlock size:13e binary:13a trackId:2 timeDiff:182
06:25:14,162 [main] INFO [MkvTagReader] - SimpleBlock size:ff binary:fb trackId:1 timeDiff:200
06:25:14,162 [main] INFO [MkvTagReader] - Cluster size:1970*
06:25:14,162 [main] INFO [MkvTagReader] - Timecode size:1 uint:208
06:25:14,163 [main] INFO [MkvTagReader] - SimpleBlock size:13d binary:139 trackId:2 timeDiff:0
06:25:14,163 [main] INFO [MkvTagReader] - SimpleBlock size:23a binary:236 trackId:1 timeDiff:17
06:25:14,164 [main] INFO [MkvTagReader] - SimpleBlock size:13e binary:13a trackId:2 timeDiff:26
06:25:14,164 [main] INFO [MkvTagReader] - SimpleBlock size:11b binary:117 trackId:1 timeDiff:42
06:25:14,164 [main] INFO [MkvTagReader] - SimpleBlock size:13d binary:139 trackId:2 timeDiff:52
06:25:14,165 [main] INFO [MkvTagReader] - SimpleBlock size:e8 binary:e4 trackId:1 timeDiff:67
06:25:14,165 [main] INFO [MkvTagReader] - SimpleBlock size:13e binary:13a trackId:2 timeDiff:78
06:25:14,165 [main] INFO [MkvTagReader] - SimpleBlock size:101 binary:fd trackId:1 timeDiff:92
06:25:14,166 [main] INFO [MkvTagReader] - SimpleBlock size:13d binary:139 trackId:2 timeDiff:104
06:25:14,166 [main] INFO [MkvTagReader] - SimpleBlock size:a4 binary:a0 trackId:1 timeDiff:117
06:25:14,167 [main] INFO [MkvTagReader] - SimpleBlock size:13e binary:13a trackId:2 timeDiff:130
06:25:14,167 [main] INFO [MkvTagReader] - SimpleBlock size:229 binary:225 trackId:1 timeDiff:142
06:25:14,167 [main] INFO [MkvTagReader] - SimpleBlock size:13d binary:139 trackId:2 timeDiff:157
06:25:14,168 [main] INFO [MkvTagReader] - SimpleBlock size:14b binary:147 trackId:1 timeDiff:167
06:25:14,168 [main] INFO [MkvTagReader] - SimpleBlock size:13e binary:13a trackId:2 timeDiff:183
06:25:14,168 [main] INFO [MkvTagReader] - SimpleBlock size:153 binary:14f trackId:1 timeDiff:192
06:25:14,169 [main] INFO [MkvTagReader] - SimpleBlock size:13d binary:139 trackId:2 timeDiff:209
06:25:14,169 [main] INFO [MkvTagReader] - SimpleBlock size:147 binary:143 trackId:1 timeDiff:217
06:25:14,169 [main] INFO [MkvTagReader] - SimpleBlock size:13d binary:139 trackId:2 timeDiff:235
06:25:14,170 [main] INFO [MkvTagReader] - SimpleBlock size:db binary:d7 trackId:1 timeDiff:242
06:25:14,170 [main] INFO [MkvTagReader] - Cluster size:1723*
06:25:14,170 [main] INFO [MkvTagReader] - Timecode size:2 uint:469
06:25:14,171 [main] INFO [MkvTagReader] - SimpleBlock size:13e binary:13a trackId:2 timeDiff:0
06:25:14,171 [main] INFO [MkvTagReader] - SimpleBlock size:234 binary:230 trackId:1 timeDiff:6
06:25:14,171 [main] INFO [MkvTagReader] - SimpleBlock size:13d binary:139 trackId:2 timeDiff:26
06:25:14,172 [main] INFO [MkvTagReader] - SimpleBlock size:12b binary:127 trackId:1 timeDiff:31
06:25:14,172 [main] INFO [MkvTagReader] - SimpleBlock size:13e binary:13a trackId:2 timeDiff:52
06:25:14,173 [main] INFO [MkvTagReader] - SimpleBlock size:168 binary:164 trackId:1 timeDiff:56
06:25:14,173 [main] INFO [MkvTagReader] - SimpleBlock size:13d binary:139 trackId:2 timeDiff:78
06:25:14,173 [main] INFO [MkvTagReader] - SimpleBlock size:ea binary:e6 trackId:1 timeDiff:81
06:25:14,174 [main] INFO [MkvTagReader] - SimpleBlock size:13e binary:13a trackId:2 timeDiff:105
06:25:14,174 [main] INFO [MkvTagReader] - SimpleBlock size:1c4 binary:1c0 trackId:1 timeDiff:106
06:25:14,174 [main] INFO [MkvTagReader] - SimpleBlock size:207 binary:203 trackId:1 timeDiff:131
06:25:14,175 [main] INFO [MkvTagReader] - SimpleBlock size:13d binary:139 trackId:2 timeDiff:131
06:25:14,175 [main] INFO [MkvTagReader] - SimpleBlock size:cf binary:cb trackId:1 timeDiff:156
06:25:14,175 [main] INFO [MkvTagReader] - SimpleBlock size:13e binary:13a trackId:2 timeDiff:157
06:25:14,176 [main] INFO [MkvTagReader] - SimpleBlock size:16f binary:16b trackId:1 timeDiff:181
06:25:14,176 [main] INFO [MkvTagReader] - SimpleBlock size:13d binary:139 trackId:2 timeDiff:183
06:25:14,176 [main] INFO [MkvTagReader] - SimpleBlock size:146 binary:142 trackId:1 timeDiff:206
06:25:14,177 [main] INFO [MkvTagReader] - Cluster size:f3f*
06:25:14,177 [main] INFO [MkvTagReader] - Timecode size:2 uint:678
06:25:14,177 [main] INFO [MkvTagReader] - SimpleBlock size:13e binary:13a trackId:2 timeDiff:0
06:25:14,178 [main] INFO [MkvTagReader] - SimpleBlock size:29d binary:299 trackId:1 timeDiff:22
06:25:14,178 [main] INFO [MkvTagReader] - SimpleBlock size:13d binary:139 trackId:2 timeDiff:26
06:25:14,179 [main] INFO [MkvTagReader] - SimpleBlock size:154 binary:150 trackId:1 timeDiff:47
06:25:14,179 [main] INFO [MkvTagReader] - SimpleBlock size:13e binary:13a trackId:2 timeDiff:52
06:25:14,179 [main] INFO [MkvTagReader] - SimpleBlock size:13d binary:139 trackId:2 timeDiff:78
06:25:14,180 [main] INFO [MkvTagReader] - SimpleBlock size:13e binary:13a trackId:2 timeDiff:105
06:25:14,180 [main] INFO [MkvTagReader] - SimpleBlock size:13d binary:139 trackId:2 timeDiff:131
06:25:14,180 [main] INFO [MkvTagReader] - SimpleBlock size:13e binary:13a trackId:2 timeDiff:157
06:25:14,181 [main] INFO [MkvTagReader] - SimpleBlock size:13d binary:139 trackId:2 timeDiff:183
06:25:14,182 [main] INFO [MkvTagReader] - SimpleBlock size:13d binary:139 trackId:2 timeDiff:209
いるのかなぁ・・・一応liveじゃなかったら必要ってかいてあるか・・・
06:25:14,190 [main] INFO [MkvTagReader] - Cues size:66*
06:25:14,183 [main] INFO [MkvTagReader] - CuePoint size:c*
06:25:14,182 [main] INFO [MkvTagReader] - CueTime size:1 uint:0
06:25:14,183 [main] INFO [MkvTagReader] - CueTrackPositions size:7*
06:25:14,183 [main] INFO [MkvTagReader] - CueTrack size:1 uint:1
06:25:14,183 [main] INFO [MkvTagReader] - CueClusterPosition size:2 uint:556
06:25:14,184 [main] INFO [MkvTagReader] - CuePoint size:c*
06:25:14,184 [main] INFO [MkvTagReader] - CueTime size:1 uint:125
06:25:14,184 [main] INFO [MkvTagReader] - CueTrackPositions size:7*
06:25:14,184 [main] INFO [MkvTagReader] - CueTrack size:1 uint:1
06:25:14,184 [main] INFO [MkvTagReader] - CueClusterPosition size:2 uint:556
06:25:14,185 [main] INFO [MkvTagReader] - CuePoint size:c*
06:25:14,185 [main] INFO [MkvTagReader] - CueTime size:1 uint:225
06:25:14,185 [main] INFO [MkvTagReader] - CueTrackPositions size:7*
06:25:14,185 [main] INFO [MkvTagReader] - CueTrack size:1 uint:1
06:25:14,185 [main] INFO [MkvTagReader] - CueClusterPosition size:2 uint:6583
06:25:14,187 [main] INFO [MkvTagReader] - CuePoint size:d*
06:25:14,186 [main] INFO [MkvTagReader] - CueTime size:2 uint:350
06:25:14,186 [main] INFO [MkvTagReader] - CueTrackPositions size:7*
06:25:14,186 [main] INFO [MkvTagReader] - CueTrack size:1 uint:1
06:25:14,186 [main] INFO [MkvTagReader] - CueClusterPosition size:2 uint:6583
06:25:14,188 [main] INFO [MkvTagReader] - CuePoint size:d*
06:25:14,187 [main] INFO [MkvTagReader] - CueTime size:2 uint:475
06:25:14,188 [main] INFO [MkvTagReader] - CueTrackPositions size:7*
06:25:14,187 [main] INFO [MkvTagReader] - CueTrack size:1 uint:1
06:25:14,188 [main] INFO [MkvTagReader] - CueClusterPosition size:2 uint:13107
06:25:14,189 [main] INFO [MkvTagReader] - CuePoint size:d*
06:25:14,188 [main] INFO [MkvTagReader] - CueTime size:2 uint:575
06:25:14,189 [main] INFO [MkvTagReader] - CueTrackPositions size:7*
06:25:14,189 [main] INFO [MkvTagReader] - CueTrack size:1 uint:1
06:25:14,189 [main] INFO [MkvTagReader] - CueClusterPosition size:2 uint:13107
06:25:14,190 [main] INFO [MkvTagReader] - CuePoint size:d*
06:25:14,189 [main] INFO [MkvTagReader] - CueTime size:2 uint:700
06:25:14,190 [main] INFO [MkvTagReader] - CueTrackPositions size:7*
06:25:14,190 [main] INFO [MkvTagReader] - CueTrack size:1 uint:1
06:25:14,190 [main] INFO [MkvTagReader] - CueClusterPosition size:2 uint:19042
*/
/**
* constructor
* @param fileName
* @throws Exception
*/
public MkvTagWriter(String fileName) throws Exception {
outputStream = new FileOutputStream(fileName);
this.outputChannel = outputStream.getChannel();
}
/**
* constructor
* @param fileOutputStream
*/
public MkvTagWriter(FileOutputStream fileOutputStream) {
this(fileOutputStream.getChannel());
}
/**
* constructor
* @param outputChannel
*/
public MkvTagWriter(WritableByteChannel outputChannel) {
this.outputChannel = outputChannel;
}
/**
* {@inheritDoc}
*/
@Override
public void prepareHeader(CodecType ...codecs) throws Exception {
// EBMLの動作はwebmになったらoverrideしてmatroskaではなく、webmと記入してやりたいところ
// EBML
position = 0;
setupEbml();
// Segment
setupSegment();
segmentPos = position;
position = 0;
// ここまではここで書き込みを実施しておく
// seekHeadは作成しません。大きさは0x60になるように調整しますが、Voidタグで埋めを実施します。
// あとで情報がそろってから作成します。(masterTagのremakeができないため)
setupInfo();
setupTracks(codecs);
setupTags();
// header情報そのものは、必要なcodecsに対応するframeデータを取得完了したときに、完了します。
}
/**
* ebmlの部分の初期化を実施
* webmのwriterではこの部分をoverrideさせて終わらせようと思う。
*/
protected void setupEbml() throws Exception {
EBML ebml = new EBML();
ebml.setup(1, 1, "matroska", 2, 2);
// ebmlのタグを書き込んでおく
addContainer(ebml);
}
/**
* segmentの冒頭部つくっておく
* @throws Exception
*/
private void setupSegment() throws Exception {
Segment segment = new Segment();
segment.setInfinite(true);
addContainer(segment);
}
/**
* info情報をつくっておく
*/
private void setupInfo() throws Exception {
info = new Info();
defaultTimebase = info.setup(1000000L, "ttProject.mkvMuxer", "ttProject.mkvWriter");
}
/**
* tracks情報をつくっておく(この場では完了しない)
* @param codecs
* @throws Exception
*/
private void setupTracks(CodecType ...codecs) throws Exception {
tracks = new Tracks();
for(CodecType codecType : codecs) {
// trackEntryの基本となる、codecTypeの指定のみ実施しておきます。
TrackEntry trackEntry = new TrackEntry();
trackEntry.setCodecType(codecType);
// CodecID codecId = new CodecID();
// codecId.setCodecType(codecType);
// trackEntry.addChild(codecId);
// 全部取得済みであるかをこのリストのsizeが0になったかで判定するので、必要か・・・
trackEntries.add(trackEntry); // trackEntryを保持しておく。
tracks.addChild(trackEntry);
}
}
/**
* tagsをつくっておく
* @throws Exception
*/
private void setupTags() throws Exception {
tags = new Tags();
Tag tag = new Tag();
tags.addChild(tag);
tag.addChild(new Targets()); // めずらしい空のmasterTag
SimpleTag simpleTag = new SimpleTag();
simpleTag.setup("ENCODER", "ttProject.mkvMuxer"); // この情報おかしいね。encoderではない
tags.addChild(simpleTag);
}
/**
* {@inheritDoc}
* TODO INFO のduration設定、Segmentのデータ量設定、SeekHeadにCuesへのseek動作の追加
* Cuesとその配下データの構築が必要になると思う。
*/
@Override
public void prepareTailer() throws Exception {
if(outputStream != null) {
try {
outputStream.close();
}
catch(Exception e) {
}
outputStream = null;
}
}
/**
* {@inheritDoc}
*/
@Override
public void addContainer(IContainer container) throws Exception {
if(container instanceof MkvMasterTag) {
MkvMasterTag masterTag = (MkvMasterTag)container;
writeData(masterTag.getData());
for(MkvTag tag : masterTag.getChildList()) {
addContainer(tag);
}
}
else {
writeData(container.getData());
}
}
/**
* {@inheritDoc}
*/
@Override
public synchronized void addFrame(int trackId, IFrame frame) throws Exception {
// マルチframeデータの場合は分解させる
if(frame instanceof AudioMultiFrame) {
AudioMultiFrame multiFrame = (AudioMultiFrame)frame;
for(IAudioFrame aFrame : multiFrame.getFrameList()) {
addFrame(trackId, aFrame);
}
return;
}
else if(frame instanceof VideoMultiFrame) {
VideoMultiFrame multiFrame = (VideoMultiFrame)frame;
for(IVideoFrame vFrame : multiFrame.getFrameList()) {
addFrame(trackId, vFrame);
}
return;
}
if(frame == null) {
return;
}
if(!trackEntryMap.containsKey(trackId)) {
// trackEntryMap化していないトラック
TrackEntry findTrackEntry = null;
for(TrackEntry trackEntry : trackEntries) {
if(trackEntry.getCodecType() == frame.getCodecType()) {
findTrackEntry = trackEntry;
break;
}
}
if(findTrackEntry != null) {
trackEntryMap.put(trackId, findTrackEntry);
trackEntries.remove(findTrackEntry);
findTrackEntry.setupFrame(trackId, frame, defaultTimebase);
// この完了して、headerを構築する部分も別関数化しておきたいけど・・・
if(isReadyToWork()) {
logger.info("now all track information is ready.");
makeHeader();
}
// データが構築済みになっていないので、データを保持しておく必要あるかも・・・
// 過去あつかったときには、mp3はlacingをつかって、１つのsimpleTagに大量にデータがはいっていたけど、aacのデータを確認してみたところ、1つのAACFrameに対して1つのsimpleTagで動作しているみたいですね。
}
}
long pts = frame.getPts() * 1000L / frame.getTimebase();
// logger.info("pts:" + pts + " " + frame.getCodecType());
if(pts >= nextClusterPts) {
long duration = defaultTimebase;
// logger.info("need to make next cluster:" + nextClusterPts + ":" + duration);
Cluster newCluster = new Cluster();
newCluster.setupTimeinfo(nextClusterPts, defaultTimebase, duration);
clusterList.add(newCluster);
nextClusterPts += duration;
}
for(Cluster cluster : clusterList) {
cluster.checkTrackId(trackId);
}
int count = 0;
for(Cluster cluster : clusterList) {
if(cluster.addFrame(trackId, frame) != null) {
if(cluster.isCompleteCluster()) {
count ++;
}
continue;
}
break;
}
for(int i = 0;i < count;i ++) {
Cluster cluster = clusterList.remove(0);
logger.info("cluster is completed, try to write data.");
cluster.setupComplete();
if(isReadyToWork()) {
logger.info("write cluster.");
addContainer(cluster);
}
else {
logger.info("dispose cluster, because header info is not ready.");
}
}
}
private boolean isReadyToWork() {
return trackEntries.size() == 0;
}
/**
* header部を完成させる
*/
protected void makeHeader() throws Exception {
// 強制的にsizeを更新しておく
// seekHeadのサイズは0x80くらいとする
int originalSeekHeadSize = 0x60; // seekHeadのサイズが大きくなった分、voidのサイズを削らないとだめ
// それぞれのデータについてgetDataを実施して、サイズを確定させる
info.getData();
tracks.getData();
tags.getData();
// スキップさせるデータ量を確認し、seekの値として保持させる。
long skipSize = originalSeekHeadSize;
seekHead = new SeekHead();
seekHead.addChild(setupSeek(Type.Info, skipSize));
skipSize += info.getSize();
seekHead.addChild(setupSeek(Type.Tracks, skipSize));
skipSize += tracks.getSize();
seekHead.addChild(setupSeek(Type.Tags, skipSize));
// seekHeadのデータ構築開始
seekHead.getData();
if(seekHead.getSize() != originalSeekHeadSize) {
// 空白がある場合はVoidでうめておく。
int diff = originalSeekHeadSize - seekHead.getSize();
Void voidTag = new Void();
voidTag.setTagSize(diff - 2);
seekHead.addChild(voidTag);
seekHead.getData();
}
// データの書き込みを実施
addContainer(seekHead);
addContainer(info);
addContainer(tracks);
addContainer(tags);
// header部作成完了
}
/**
* seekの中身を作成する
* @param type
* @return
*/
private MkvTag setupSeek(Type type, long pos) throws Exception {
Seek seek = new Seek();
seek.setup(type, pos);
return seek;
}
/**
* 実データの書き込み処理
* @param buffer
* @throws Exception
*/
private void writeData(ByteBuffer buffer) throws Exception {
position += buffer.remaining(); // 書き込む量を追加していく
outputChannel.write(buffer);
}
}