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Commit 538e71c0 by Oliver Woodman
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Merge branch 'dev-v2-dvbsubs' of git://github.com/tresvecesseis/ExoPlayer into… 

Merge branch 'dev-v2-dvbsubs' of git://github.com/tresvecesseis/ExoPlayer into tresvecesseis-dev-v2-dvbsubs
parents 6caa3e79 38779de2
Inline Side-by-side
Showing with 1865 additions and 10 deletions
library/core/proguard-rules.txt
...@@ -5,3 +5,6 @@ ...@@ -5,3 +5,6 @@
-keepclassmembers class com.google.android.exoplayer2.text.cea.Cea708Decoder { -keepclassmembers class com.google.android.exoplayer2.text.cea.Cea708Decoder {
public <init>(int); public <init>(int);
} }
-keepclassmembers class com.google.android.exoplayer2.text.dvb.DvbDecoder {
public <init>(java.util.List);
}
\ No newline at end of file
library/core/src/main/java/com/google/android/exoplayer2/extractor/mkv/MatroskaExtractor.java
...@@ -99,6 +99,7 @@ public final class MatroskaExtractor implements Extractor { ...@@ -99,6 +99,7 @@ public final class MatroskaExtractor implements Extractor {
private static final String CODEC_ID_SUBRIP = "S_TEXT/UTF8"; private static final String CODEC_ID_SUBRIP = "S_TEXT/UTF8";
private static final String CODEC_ID_VOBSUB = "S_VOBSUB"; private static final String CODEC_ID_VOBSUB = "S_VOBSUB";
private static final String CODEC_ID_PGS = "S_HDMV/PGS"; private static final String CODEC_ID_PGS = "S_HDMV/PGS";
private static final String CODEC_ID_DVBSUB = "S_DVBSUB";
private static final int VORBIS_MAX_INPUT_SIZE = 8192; private static final int VORBIS_MAX_INPUT_SIZE = 8192;
private static final int OPUS_MAX_INPUT_SIZE = 5760; private static final int OPUS_MAX_INPUT_SIZE = 5760;
...@@ -1233,7 +1234,8 @@ public final class MatroskaExtractor implements Extractor { ...@@ -1233,7 +1234,8 @@ public final class MatroskaExtractor implements Extractor {
|| CODEC_ID_PCM_INT_LIT.equals(codecId) || CODEC_ID_PCM_INT_LIT.equals(codecId)
|| CODEC_ID_SUBRIP.equals(codecId) || CODEC_ID_SUBRIP.equals(codecId)
|| CODEC_ID_VOBSUB.equals(codecId) || CODEC_ID_VOBSUB.equals(codecId)
|| CODEC_ID_PGS.equals(codecId); || CODEC_ID_PGS.equals(codecId)
|| CODEC_ID_DVBSUB.equals(codecId);
} }
/** /**
...@@ -1461,6 +1463,11 @@ public final class MatroskaExtractor implements Extractor { ...@@ -1461,6 +1463,11 @@ public final class MatroskaExtractor implements Extractor {
case CODEC_ID_PGS: case CODEC_ID_PGS:
mimeType = MimeTypes.APPLICATION_PGS; mimeType = MimeTypes.APPLICATION_PGS;
break; break;
case CODEC_ID_DVBSUB:
mimeType = MimeTypes.APPLICATION_DVBSUBS;
initializationData = Collections.singletonList(new byte[] {
(byte) 0x01, codecPrivate[0], codecPrivate[1], codecPrivate[2], codecPrivate[3]});
break;
default: default:
throw new ParserException("Unrecognized codec identifier."); throw new ParserException("Unrecognized codec identifier.");
} }
...@@ -1495,7 +1502,8 @@ public final class MatroskaExtractor implements Extractor { ...@@ -1495,7 +1502,8 @@ public final class MatroskaExtractor implements Extractor {
format = Format.createTextSampleFormat(Integer.toString(trackId), mimeType, null, format = Format.createTextSampleFormat(Integer.toString(trackId), mimeType, null,
Format.NO_VALUE, selectionFlags, language, drmInitData); Format.NO_VALUE, selectionFlags, language, drmInitData);
} else if (MimeTypes.APPLICATION_VOBSUB.equals(mimeType) } else if (MimeTypes.APPLICATION_VOBSUB.equals(mimeType)
|| MimeTypes.APPLICATION_PGS.equals(mimeType)) { || MimeTypes.APPLICATION_PGS.equals(mimeType)
|| MimeTypes.APPLICATION_DVBSUBS.equals(mimeType)) {
type = C.TRACK_TYPE_TEXT; type = C.TRACK_TYPE_TEXT;
format = Format.createImageSampleFormat(Integer.toString(trackId), mimeType, null, format = Format.createImageSampleFormat(Integer.toString(trackId), mimeType, null,
Format.NO_VALUE, initializationData, language, drmInitData); Format.NO_VALUE, initializationData, language, drmInitData);
......
library/core/src/main/java/com/google/android/exoplayer2/extractor/ts/DefaultTsPayloadReaderFactory.java
...@@ -109,6 +109,8 @@ public final class DefaultTsPayloadReaderFactory implements TsPayloadReader.Fact ...@@ -109,6 +109,8 @@ public final class DefaultTsPayloadReaderFactory implements TsPayloadReader.Fact
? null : new SectionReader(new SpliceInfoSectionReader()); ? null : new SectionReader(new SpliceInfoSectionReader());
case TsExtractor.TS_STREAM_TYPE_ID3: case TsExtractor.TS_STREAM_TYPE_ID3:
return new PesReader(new Id3Reader()); return new PesReader(new Id3Reader());
case TsExtractor.TS_STREAM_TYPE_DVBSUBS:
return new PesReader(new DvbSubtitlesReader(esInfo));
default: default:
return null; return null;
} }
......
library/core/src/main/java/com/google/android/exoplayer2/extractor/ts/DvbSubtitlesReader.java 0 → 100644
/*
* Copyright (C) 2017 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.google.android.exoplayer2.extractor.ts;
import com.google.android.exoplayer2.C;
import com.google.android.exoplayer2.Format;
import com.google.android.exoplayer2.extractor.ExtractorOutput;
import com.google.android.exoplayer2.extractor.TrackOutput;
import com.google.android.exoplayer2.extractor.ts.TsPayloadReader.TrackIdGenerator;
import com.google.android.exoplayer2.util.MimeTypes;
import com.google.android.exoplayer2.util.ParsableByteArray;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
/**
* Output PES packets to a {@link TrackOutput}.
*/
public final class DvbSubtitlesReader implements ElementaryStreamReader {
private class SubtitleTrack {
private String language;
private List<byte[]> initializationData;
}
private List<SubtitleTrack> subtitles = new ArrayList<>();
private long sampleTimeUs;
private int sampleBytesWritten;
private boolean writingSample;
private List<TrackOutput> outputTracks = new ArrayList<>();
public DvbSubtitlesReader(TsPayloadReader.EsInfo esInfo) {
int pos = 2;
while (pos < esInfo.descriptorBytes.length) {
SubtitleTrack subtitle = new SubtitleTrack();
subtitle.language = new String(new byte[] {
esInfo.descriptorBytes[pos],
esInfo.descriptorBytes[pos + 1],
esInfo.descriptorBytes[pos + 2]});
if (((esInfo.descriptorBytes[pos + 3] & 0xF0 ) >> 4 ) == 2 ) {
subtitle.language += " for hard of hearing";
}
subtitle.initializationData = Collections.singletonList(new byte[] {(byte) 0x00,
esInfo.descriptorBytes[pos + 4], esInfo.descriptorBytes[pos + 5],
esInfo.descriptorBytes[pos + 6], esInfo.descriptorBytes[pos + 7]});
subtitles.add(subtitle);
pos += 8;
}
}
@Override
public void seek() {
writingSample = false;
}
@Override
public void createTracks(ExtractorOutput extractorOutput, TrackIdGenerator idGenerator) {
TrackOutput output;
SubtitleTrack subtitle;
for (int i = 0; i < subtitles.size(); i++) {
subtitle = subtitles.get(i);
idGenerator.generateNewId();
output = extractorOutput.track(idGenerator.getTrackId(), C.TRACK_TYPE_TEXT);
output.format(Format.createImageSampleFormat(idGenerator.getFormatId(),
MimeTypes.APPLICATION_DVBSUBS, null, Format.NO_VALUE,
subtitle.initializationData, subtitle.language, null));
outputTracks.add(output);
}
}
@Override
public void packetStarted(long pesTimeUs, boolean dataAlignmentIndicator) {
if (!dataAlignmentIndicator) {
return;
}
writingSample = true;
sampleTimeUs = pesTimeUs;
sampleBytesWritten = 0;
}
@Override
public void packetFinished() {
TrackOutput output;
for (int i = 0; i < outputTracks.size(); i++) {
output = outputTracks.get(i);
output.sampleMetadata(sampleTimeUs, C.BUFFER_FLAG_KEY_FRAME, sampleBytesWritten, 0, null);
}
writingSample = false;
}
@Override
public void consume(ParsableByteArray data) {
if (writingSample) {
int bytesAvailable = data.bytesLeft();
TrackOutput output;
int dataPosition = data.getPosition();
for (int i = 0; i < outputTracks.size(); i++) {
data.setPosition(dataPosition);
output = outputTracks.get(i);
output.sampleData(data, bytesAvailable);
}
sampleBytesWritten += bytesAvailable;
}
}
}
\ No newline at end of file
library/core/src/main/java/com/google/android/exoplayer2/extractor/ts/TsExtractor.java
...@@ -92,6 +92,7 @@ public final class TsExtractor implements Extractor { ...@@ -92,6 +92,7 @@ public final class TsExtractor implements Extractor {
public static final int TS_STREAM_TYPE_H265 = 0x24; public static final int TS_STREAM_TYPE_H265 = 0x24;
public static final int TS_STREAM_TYPE_ID3 = 0x15; public static final int TS_STREAM_TYPE_ID3 = 0x15;
public static final int TS_STREAM_TYPE_SPLICE_INFO = 0x86; public static final int TS_STREAM_TYPE_SPLICE_INFO = 0x86;
public static final int TS_STREAM_TYPE_DVBSUBS = 0x59;
private static final int TS_PACKET_SIZE = 188; private static final int TS_PACKET_SIZE = 188;
private static final int TS_SYNC_BYTE = 0x47; // First byte of each TS packet. private static final int TS_SYNC_BYTE = 0x47; // First byte of each TS packet.
...@@ -356,6 +357,7 @@ public final class TsExtractor implements Extractor { ...@@ -356,6 +357,7 @@ public final class TsExtractor implements Extractor {
private static final int TS_PMT_DESC_AC3 = 0x6A; private static final int TS_PMT_DESC_AC3 = 0x6A;
private static final int TS_PMT_DESC_EAC3 = 0x7A; private static final int TS_PMT_DESC_EAC3 = 0x7A;
private static final int TS_PMT_DESC_DTS = 0x7B; private static final int TS_PMT_DESC_DTS = 0x7B;
private static final int TS_PMT_DESC_DVBSUBS = 0x59;
private final ParsableBitArray pmtScratch; private final ParsableBitArray pmtScratch;
private final int pid; private final int pid;
...@@ -498,6 +500,9 @@ public final class TsExtractor implements Extractor { ...@@ -498,6 +500,9 @@ public final class TsExtractor implements Extractor {
} else if (descriptorTag == TS_PMT_DESC_ISO639_LANG) { } else if (descriptorTag == TS_PMT_DESC_ISO639_LANG) {
language = new String(data.data, data.getPosition(), 3).trim(); language = new String(data.data, data.getPosition(), 3).trim();
// Audio type is ignored. // Audio type is ignored.
} else if (descriptorTag == TS_PMT_DESC_DVBSUBS) {
streamType = TS_STREAM_TYPE_DVBSUBS;
language = new String(data.data, data.getPosition(), 3).trim();
} }
// Skip unused bytes of current descriptor. // Skip unused bytes of current descriptor.
data.skipBytes(positionOfNextDescriptor - data.getPosition()); data.skipBytes(positionOfNextDescriptor - data.getPosition());
......
library/core/src/main/java/com/google/android/exoplayer2/text/Cue.java
...@@ -168,6 +168,12 @@ public class Cue { ...@@ -168,6 +168,12 @@ public class Cue {
public final float size; public final float size;
/** /**
* The bitmap height as a fraction of the of the viewport size, or -1 if the bitmap should be
* displayed at its natural height given for its specified {@link #size}.
*/
public final float bitmapHeight;
/**
* Specifies whether or not the {@link #windowColor} property is set. * Specifies whether or not the {@link #windowColor} property is set.
*/ */
public final boolean windowColorSet; public final boolean windowColorSet;
...@@ -190,11 +196,13 @@ public class Cue { ...@@ -190,11 +196,13 @@ public class Cue {
* @param verticalPositionAnchor The vertical anchor. One of {@link #ANCHOR_TYPE_START}, * @param verticalPositionAnchor The vertical anchor. One of {@link #ANCHOR_TYPE_START},
* {@link #ANCHOR_TYPE_MIDDLE}, {@link #ANCHOR_TYPE_END} and {@link #TYPE_UNSET}. * {@link #ANCHOR_TYPE_MIDDLE}, {@link #ANCHOR_TYPE_END} and {@link #TYPE_UNSET}.
* @param width The width of the cue, expressed as a fraction of the viewport width. * @param width The width of the cue, expressed as a fraction of the viewport width.
* @param height The width of the cue, expressed as a fraction of the viewport width.
*/ */
public Cue(Bitmap bitmap, float horizontalPosition, @AnchorType int horizontalPositionAnchor, public Cue(Bitmap bitmap, float horizontalPosition, @AnchorType int horizontalPositionAnchor,
float verticalPosition, @AnchorType int verticalPositionAnchor, float width) { float verticalPosition, @AnchorType int verticalPositionAnchor, float width, float
height) {
this(null, null, bitmap, verticalPosition, LINE_TYPE_FRACTION, verticalPositionAnchor, this(null, null, bitmap, verticalPosition, LINE_TYPE_FRACTION, verticalPositionAnchor,
horizontalPosition, horizontalPositionAnchor, width, false, Color.BLACK); horizontalPosition, horizontalPositionAnchor, width, height, false, Color.BLACK);
} }
/** /**
...@@ -240,15 +248,16 @@ public class Cue { ...@@ -240,15 +248,16 @@ public class Cue {
* @param windowColor See {@link #windowColor}. * @param windowColor See {@link #windowColor}.
*/ */
public Cue(CharSequence text, Alignment textAlignment, float line, @LineType int lineType, public Cue(CharSequence text, Alignment textAlignment, float line, @LineType int lineType,
@AnchorType int lineAnchor, float position, @AnchorType int positionAnchor, float size, @AnchorType int lineAnchor, float position, @AnchorType int positionAnchor, float size,
boolean windowColorSet, int windowColor) { boolean windowColorSet, int windowColor) {
this(text, textAlignment, null, line, lineType, lineAnchor, position, positionAnchor, size, this(text, textAlignment, null, line, lineType, lineAnchor, position, positionAnchor, size,
windowColorSet, windowColor); -1, windowColorSet, windowColor);
} }
private Cue(CharSequence text, Alignment textAlignment, Bitmap bitmap, float line, private Cue(CharSequence text, Alignment textAlignment, Bitmap bitmap, float line,
@LineType int lineType, @AnchorType int lineAnchor, float position, @LineType int lineType, @AnchorType int lineAnchor, float position,
@AnchorType int positionAnchor, float size, boolean windowColorSet, int windowColor) { @AnchorType int positionAnchor, float size, float bitmapHeight, boolean windowColorSet,
int windowColor) {
this.text = text; this.text = text;
this.textAlignment = textAlignment; this.textAlignment = textAlignment;
this.bitmap = bitmap; this.bitmap = bitmap;
...@@ -258,6 +267,7 @@ public class Cue { ...@@ -258,6 +267,7 @@ public class Cue {
this.position = position; this.position = position;
this.positionAnchor = positionAnchor; this.positionAnchor = positionAnchor;
this.size = size; this.size = size;
this.bitmapHeight = bitmapHeight;
this.windowColorSet = windowColorSet; this.windowColorSet = windowColorSet;
this.windowColor = windowColor; this.windowColor = windowColor;
} }
......
library/core/src/main/java/com/google/android/exoplayer2/text/SubtitleDecoderFactory.java
...@@ -25,6 +25,8 @@ import com.google.android.exoplayer2.text.webvtt.Mp4WebvttDecoder; ...@@ -25,6 +25,8 @@ import com.google.android.exoplayer2.text.webvtt.Mp4WebvttDecoder;
import com.google.android.exoplayer2.text.webvtt.WebvttDecoder; import com.google.android.exoplayer2.text.webvtt.WebvttDecoder;
import com.google.android.exoplayer2.util.MimeTypes; import com.google.android.exoplayer2.util.MimeTypes;
import java.util.List;
/** /**
* A factory for {@link SubtitleDecoder} instances. * A factory for {@link SubtitleDecoder} instances.
*/ */
...@@ -83,6 +85,8 @@ public interface SubtitleDecoderFactory { ...@@ -83,6 +85,8 @@ public interface SubtitleDecoderFactory {
} else if (format.sampleMimeType.equals(MimeTypes.APPLICATION_CEA708)) { } else if (format.sampleMimeType.equals(MimeTypes.APPLICATION_CEA708)) {
return clazz.asSubclass(SubtitleDecoder.class).getConstructor(Integer.TYPE) return clazz.asSubclass(SubtitleDecoder.class).getConstructor(Integer.TYPE)
.newInstance(format.accessibilityChannel); .newInstance(format.accessibilityChannel);
} else if (format.sampleMimeType.equals(MimeTypes.APPLICATION_DVBSUBS)) {
return clazz.asSubclass(SubtitleDecoder.class).getConstructor(List.class).newInstance(format.initializationData);
} else { } else {
return clazz.asSubclass(SubtitleDecoder.class).getConstructor().newInstance(); return clazz.asSubclass(SubtitleDecoder.class).getConstructor().newInstance();
} }
...@@ -112,6 +116,8 @@ public interface SubtitleDecoderFactory { ...@@ -112,6 +116,8 @@ public interface SubtitleDecoderFactory {
return Class.forName("com.google.android.exoplayer2.text.cea.Cea608Decoder"); return Class.forName("com.google.android.exoplayer2.text.cea.Cea608Decoder");
case MimeTypes.APPLICATION_CEA708: case MimeTypes.APPLICATION_CEA708:
return Class.forName("com.google.android.exoplayer2.text.cea.Cea708Decoder"); return Class.forName("com.google.android.exoplayer2.text.cea.Cea708Decoder");
case MimeTypes.APPLICATION_DVBSUBS:
return Class.forName("com.google.android.exoplayer2.text.dvb.DvbDecoder");
default: default:
return null; return null;
} }
......
library/core/src/main/java/com/google/android/exoplayer2/text/dvb/DvbDecoder.java 0 → 100644
/*
* Copyright (C) 2017 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.google.android.exoplayer2.text.dvb;
import com.google.android.exoplayer2.text.SimpleSubtitleDecoder;
import java.util.List;
/**
* A {@link SimpleSubtitleDecoder} for DVB Subtitles.
*/
public final class DvbDecoder extends SimpleSubtitleDecoder {
private final DvbParser parser;
public DvbDecoder(List<byte[]> initializationData) {
super("DvbDecoder");
int subtitleCompositionPage = 1;
int subtitleAncillaryPage = 1;
int flags = 0;
byte[] tempByteArray;
if ((tempByteArray = initializationData.get(0)) != null && tempByteArray.length == 5) {
if (tempByteArray[0] == 0x01) {
flags |= DvbParser.FLAG_PES_STRIPPED_DVBSUB;
}
subtitleCompositionPage = ((tempByteArray[1] & 0xFF) << 8) | (tempByteArray[2] & 0xFF);
subtitleAncillaryPage = ((tempByteArray[3] & 0xFF) << 8) | (tempByteArray[4] & 0xFF);
}
parser = new DvbParser(subtitleCompositionPage, subtitleAncillaryPage, flags);
}
@Override
protected DvbSubtitle decode(byte[] data, int length) {
return new DvbSubtitle(parser.dvbSubsDecode(data, length));
}
}
\ No newline at end of file
library/core/src/main/java/com/google/android/exoplayer2/text/dvb/DvbParser.java 0 → 100644
/*
* Copyright (C) 2017 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.google.android.exoplayer2.text.dvb;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.PorterDuff;
import android.graphics.DashPathEffect;
import android.graphics.PorterDuffXfermode;
import android.graphics.Region;
import android.support.annotation.IntDef;
import android.util.Log;
import android.util.SparseArray;
import com.google.android.exoplayer2.core.BuildConfig;
import com.google.android.exoplayer2.text.Cue;
import com.google.android.exoplayer2.util.ParsableBitArray;
import java.util.ArrayList;
import java.util.List;
/**
* Parse and generate a list of {@link Cue}s from DVB subtitling bitstream
*/
public class DvbParser {
private static final String TAG = "DVBSubs";
@IntDef(flag = true, value = {FLAG_PES_STRIPPED_DVBSUB})
public @interface Flags {
}
public static final int FLAG_PES_STRIPPED_DVBSUB = 1;
@Flags
private final int flags;
/* List of different SEGMENT TYPES */
/* According to EN 300-743, table 2 */
private final static int DVBSUB_ST_PAGE_COMPOSITION = 0x10;
private final static int DVBSUB_ST_REGION_COMPOSITION = 0x11;
private final static int DVBSUB_ST_CLUT_DEFINITION = 0x12;
private final static int DVBSUB_ST_OBJECT_DATA = 0x13;
private final static int DVBSUB_ST_DISPLAY_DEFINITION = 0x14;
private final static int DVBSUB_ST_ENDOFDISPLAY = 0x80;
private final static int DVBSUB_ST_STUFFING = 0xff;
/* List of different Page Composition Segment state */
/* According to EN 300-743, 7.2.1 table 3 */
private final static int DVBSUB_PCS_STATE_NORMAL = 0b00; // Update. Only changed elements.
private final static int DVBSUB_PCS_STATE_ACQUISITION = 0b01; // Refresh. All subtitle elements.
private final static int DVBSUB_PCS_STATE_CHANGE = 0b10; // New. All subtitle elements.
/* List of different Region Composition Segments CLUT level oc compatibility */
/* According to EN 300-743, 7.2.1 table 4 */
private final static int DVBSUB_RCS_CLUT_2 = 0x01;
private final static int DVBSUB_RCS_CLUT_4 = 0x02;
private final static int DVBSUB_RCS_CLUT_8 = 0x03;
/* List of different Region Composition Segments bit depths */
/* According to EN 300-743, 7.2.1 table 5 */
private final static int DVBSUB_RCS_BITDEPTH_2 = 0x01;
private final static int DVBSUB_RCS_BITDEPTH_4 = 0x02;
private final static int DVBSUB_RCS_BITDEPTH_8 = 0x03;
/* List of different object types in the Region Composition Segment */
/* According to EN 300-743, table 6 */
private final static int DVBSUB_OT_BASIC_BITMAP = 0x00;
private final static int DVBSUB_OT_BASIC_CHAR = 0x01;
private final static int DVBSUB_OT_COMPOSITE_STRING = 0x02;
/* List of different object coding methods in the Object Data Segment */
/* According to EN 300-743, table 8 */
private static final int DVBSUB_ODS_PIXEL_CODED = 0x00;
private static final int DVBSUB_ODS_CHAR_CODED = 0x01;
/* Pixel DATA TYPES */
/* According to EN 300-743, table 9 */
private final static int DVBSUB_DT_2BP_CODE_STRING = 0x10;
private final static int DVBSUB_DT_4BP_CODE_STRING = 0x11;
private final static int DVBSUB_DT_8BP_CODE_STRING = 0x12;
private final static int DVBSUB_DT_24_TABLE_DATA = 0x20;
private final static int DVBSUB_DT_28_TABLE_DATA = 0x21;
private final static int DVBSUB_DT_48_TABLE_DATA = 0x22;
private final static int DVBSUB_DT_END_LINE = 0xf0;
/* Clut mapping tables */
/* According to EN 300-743, 10.4 10.5 10.6 */
private byte[] defaultMap24 = {(byte) 0x00, (byte) 0x07, (byte) 0x08, (byte) 0x0f};
private byte[] defaultMap28 = {(byte) 0x00, (byte) 0x77, (byte) 0x88, (byte) 0xff};
private byte[] defaultMap48 = {(byte) 0x00, (byte) 0x11, (byte) 0x22, (byte) 0x33,
(byte) 0x44, (byte) 0x55, (byte) 0x66, (byte) 0x77,
(byte) 0x88, (byte) 0x99, (byte) 0xaa, (byte) 0xbb,
(byte) 0xcc, (byte) 0xdd, (byte) 0xee, (byte) 0xff};
/* FLAGS */
private final static int DISPLAY_WINDOW_FLAG = 0x01;
private final static int REGION_FILL_FLAG = 0x01;
private final static int OBJECT_NON_MODIFYING_COLOUR_FLAG = 0x01;
/* instance variables */
private Paint defaultPaint = new Paint();
private Paint fillRegionPaint = new Paint();
private Paint debugRegionPaint = new Paint();
private Paint debugObjectPaint = new Paint();
private Bitmap bitmap;
private Canvas canvas = new Canvas();
private ClutDefinition defaultClut = new ClutDefinition();
private static ParsableBitArray tsStream;
private SubtitleService subtitleService;
/*
* Contains the current subtitle service definition
*/
private class SubtitleService {
int subtitlePageId;
int ancillaryPageId;
// subtitle page
DisplayDefinition displayDefinition;
PageComposition pageComposition;
SparseArray<RegionComposition> regions = new SparseArray<>();
SparseArray<ClutDefinition> cluts = new SparseArray<>();
SparseArray<ObjectData> objects = new SparseArray<>();
// ancillary page
SparseArray<ClutDefinition> ancillaryCluts = new SparseArray<>();
SparseArray<ObjectData> ancillaryObjects = new SparseArray<>();
}
/* The display definition contains the geometry and active area of the subtitle service [7.2.1] */
private class DisplayDefinition {
int pageId;
int versionNumber;
int displayWidth = 719;
int displayHeight = 575;
int flags;
int displayWindowHorizontalPositionMinimum = 0;
int displayWindowHorizontalPositionMaximum = 719;
int displayWindowVerticalPositionMinimum = 0;
int displayWindowVerticalPositionMaximum = 575;
void updateBitmapResolution() {
bitmap = Bitmap.createBitmap(this.displayWidth + 1, this.displayHeight + 1,
Bitmap.Config.ARGB_8888);
canvas = new Canvas(bitmap);
}
}
/* The page is the definition and arrangement of regions in the screen [7.2.2] */
private class PageComposition {
int pageId;
int pageTimeOut; /* in seconds */
int pageVersionNumber;
int pageState;
SparseArray<PageRegion> pageRegions = new SparseArray<>();
}
private class PageRegion {
int regionId;
int regionHorizontalAddress;
int regionVerticalAddress;
}
/* The Region is an area of the page [7.2.3] composed of a list of objects and a CLUT */
private class RegionComposition {
int pageId;
int regionId;
int regionVersionNumber;
int flags;
int regionWidth;
int regionHeight;
int regionLevelOfCompatibility;
int regionDepth;
int clutId;
int region8bitPixelCode;
int region4bitPixelCode;
int region2bitPixelCode;
SparseArray<RegionObject> regionObjects = new SparseArray<>();
/*
* We maintain a reference to the Cue to implement future drawing optimizations, no re-render in case of:
*
* - Page updates not affecting region composition (no clut change/redefinition, no object changes)
* - Incremental subtitle display render (e.g. live captions updates)
*/
Cue cue;
}
private class RegionObject {
int objectId;
int objectType;
int objectProvider;
int objectHorizontalPosition;
int objectVerticalPosition;
int foregroundPixelCode;
int backgroundPixelCode;
}
/* An entry in the palette CLUT and associated color space translation methods */
private class ClutEntry {
int clutEntryId;
byte flags;
byte Y;
byte Cr;
byte Cb;
byte T;
byte A;
byte R;
byte G;
byte B;
int ARGB;
void clutYCbCrT(int Y, int Cb, int Cr, int T) {
this.Y = (byte) Y;
this.Cb = (byte) Cb;
this.Cr = (byte) Cr;
this.T = (byte) T;
int R = (int) (Y + 1.40200 * (Cr - 128));
int G = (int) (Y - 0.34414 * (Cb - 128) - 0.71414 * (Cr - 128));
int B = (int) (Y + 1.77200 * (Cb - 128));
if (R > 255) this.R = (byte) 255;
else if (R < 0) this.R = 0;
else this.R = (byte) R;
if (G > 255) this.G = (byte) 255;
else if (G < 0) this.G = 0;
else this.G = (byte) G;
if (B > 255) this.B = (byte) 255;
else if (B < 0) this.B = 0;
else this.B = (byte) B;
this.A = (byte) (0xFF - (this.T & 0xFF));
this.ARGB =
((this.A & 0xFF) << 24) |
((this.R & 0xFF) << 16) |
((this.G & 0xFF) << 8) |
(this.B & 0xFF);
}
void clutRGBA(int R, int G, int B, int A) {
this.A = (byte) A;
this.R = (byte) R;
this.G = (byte) G;
this.B = (byte) B;
this.ARGB =
((A & 0xFF) << 24) |
((R & 0xFF) << 16) |
((G & 0xFF) << 8) |
(B & 0xFF);
int y = (int) (0.299000 * R + 0.587000 * G + 0.114000 * B);
int Cb = 128 + (int) (-0.168736 * R + -0.331264 * G + 0.500000 * B);
int Cr = 128 + (int) (0.500000 * R + -0.418688 * G + -0.081312 * B);
if (y > 255) this.Y = (byte) 255;
else if (y < 0) this.Y = 0;
else this.Y = (byte) y;
if (Cb > 255) this.Cb = (byte) 255;
else if (Cb < 0) this.Cb = 0;
else this.Cb = (byte) Cb;
if (Cr > 255) this.Cr = (byte) 255;
else if (Cr < 0) this.Cr = 0;
else this.Cr = (byte) Cr;
this.T = (byte) (0xFF - (this.A & 0xFF));
}
}
/* CLUT family definition containing the color tables for the three bitdepths defined [7.2.4] */
private class ClutDefinition {
int pageId;
int clutId;
int clutVersionNumber;
ClutEntry[] clutEntries2bit;
ClutEntry[] clutEntries4bit;
ClutEntry[] clutEntries8bit;
ClutEntry[] generateDefault2bitClut() {
ClutEntry[] entries = new ClutEntry[4];
entries[0] = new ClutEntry();
entries[0].clutRGBA(0x00, 0x00, 0x00, 0x00);
entries[1] = new ClutEntry();
entries[1].clutRGBA(0xFF, 0xFF, 0xFF, 0xFF);
entries[2] = new ClutEntry();
entries[2].clutRGBA(0x00, 0x00, 0x00, 0xFF);
entries[3] = new ClutEntry();
entries[3].clutRGBA(0x7F, 0x7F, 0x7F, 0xFF);
return entries;
}
ClutEntry[] generateDefault4bitClut() {
ClutEntry[] entries = new ClutEntry[16];
entries[0] = new ClutEntry();
entries[0].clutRGBA(0x00, 0x00, 0x00, 0x00);
int i = 15;
while (i > 0) {
entries[i] = new ClutEntry();
if (i < 8) {
entries[i].clutRGBA(
((i & 0x01) != 0 ? 0xFF : 0x00),
((i & 0x02) != 0 ? 0xFF : 0x00),
((i & 0x04) != 0 ? 0xFF : 0x00),
0xFF);
} else {
entries[i].clutRGBA(
((i & 0x01) != 0 ? 0x7F : 0x00),
((i & 0x02) != 0 ? 0x7F : 0x00),
((i & 0x04) != 0 ? 0x7F : 0x00),
0xFF);
}
i--;
}
return entries;
}
ClutEntry[] generateDefault8bitClut() {
ClutEntry[] entries = new ClutEntry[256];
entries[0] = new ClutEntry();
entries[0].clutRGBA(0x00, 0x00, 0x00, 0x00);
int i = 255;
while (i > 0) {
entries[i] = new ClutEntry();
if (i < 8) {
entries[i].clutRGBA(
((i & 0x01) != 0 ? 0xFF : 0x00),
((i & 0x02) != 0 ? 0xFF : 0x00),
((i & 0x04) != 0 ? 0xFF : 0x00),
0x3F);
} else {
switch (i & 0x88) {
case 0x00:
entries[i].clutRGBA(
(((i & 0x01) != 0 ? 0x55 : 0x00) + ((i & 0x10) != 0 ? 0xAA : 0x00)),
(((i & 0x02) != 0 ? 0x55 : 0x00) + ((i & 0x20) != 0 ? 0xAA : 0x00)),
(((i & 0x04) != 0 ? 0x55 : 0x00) + ((i & 0x40) != 0 ? 0xAA : 0x00)),
0xFF);
break;
case 0x08:
entries[i].clutRGBA(
(((i & 0x01) != 0 ? 0x55 : 0x00) + ((i & 0x10) != 0 ? 0xAA : 0x00)),
(((i & 0x02) != 0 ? 0x55 : 0x00) + ((i & 0x20) != 0 ? 0xAA : 0x00)),
(((i & 0x04) != 0 ? 0x55 : 0x00) + ((i & 0x40) != 0 ? 0xAA : 0x00)),
0x7F);
break;
case 0x80:
entries[i].clutRGBA(
(127 + ((i & 0x01) != 0 ? 0x2B : 0x00) + ((i & 0x10) != 0 ? 0x55 : 0x00)),
(127 + ((i & 0x02) != 0 ? 0x2B : 0x00) + ((i & 0x20) != 0 ? 0x55 : 0x00)),
(127 + ((i & 0x04) != 0 ? 0x2B : 0x00) + ((i & 0x40) != 0 ? 0x55 : 0x00)),
0xFF);
break;
case 0x88:
entries[i].clutRGBA(
(((i & 0x01) != 0 ? 0x2B : 0x00) + ((i & 0x10) != 0 ? 0x55 : 0x00)),
(((i & 0x02) != 0 ? 0x2B : 0x00) + ((i & 0x20) != 0 ? 0x55 : 0x00)),
(((i & 0x04) != 0 ? 0x2B : 0x00) + ((i & 0x40) != 0 ? 0x55 : 0x00)),
0xFF);
break;
}
}
i--;
}
return entries;
}
ClutDefinition() {
clutEntries2bit = generateDefault2bitClut();
clutEntries4bit = generateDefault4bitClut();
clutEntries8bit = generateDefault8bitClut();
}
}
/* The object data segment contains the textual/graphical representation of an object [7.2.5] */
private class ObjectData {
int pageId;
int objectId;
int objectVersionNumber;
int objectCodingMethod;
byte flags;
int topFieldDataLength;
byte[] topFieldData;
int bottomFieldDataLength;
byte[] bottomFieldData;
int numberOfCodes;
}
/**
* Construct a subtitle service for the given subtitle and ancillary pageIds
*
* @param subtitlePageId The Id of the subtitle page carrying the selected subtitle track
* @param ancillaryPageId Id of the common subtitle page containing additional data for the current
* subtitle track
* @param flags additional initialisation info to properly configure the parser
*/
DvbParser(int subtitlePageId, int ancillaryPageId, @Flags int flags) {
this.subtitleService = new SubtitleService();
this.flags = flags;
this.defaultPaint.setStyle(Paint.Style.FILL_AND_STROKE);
this.defaultPaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC));
this.defaultPaint.setPathEffect(null);
this.fillRegionPaint.setStyle(Paint.Style.FILL);
this.fillRegionPaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.DST_OVER));
this.fillRegionPaint.setPathEffect(null);
this.debugRegionPaint.setColor(0xff00ff00);
this.debugRegionPaint.setStyle(Paint.Style.STROKE);
this.debugRegionPaint.setPathEffect(new DashPathEffect(new float[]{2, 2}, 0));
this.debugObjectPaint.setColor(0xffff0000);
this.debugObjectPaint.setStyle(Paint.Style.STROKE);
this.debugObjectPaint.setPathEffect(new DashPathEffect(new float[]{10, 20}, 0));
this.subtitleService.subtitlePageId = subtitlePageId;
this.subtitleService.ancillaryPageId = ancillaryPageId;
this.subtitleService.displayDefinition = new DisplayDefinition();
this.subtitleService.displayDefinition.updateBitmapResolution();
}
private void parseSubtitlingSegment() {
/* Parse subtitling segment. ETSI EN 300 743 7.2
SYNTAX SIZE SEMANTICS
--------------------------------------- ---- ------------------------------------------
Subtitling_segment() {
sync_byte 8 An 8-bit field that shall be coded with the value '0000 1111'
segment_type 8 Indicates the type of data contained in the segment data field
page_id 16 Identifies the subtitle service of the data contained in this subtitling_segment
segment_length 16 Number of bytes contained in the segment_data_field
segment_data_field() This is the payload of the segment
*/
int pageId, segmentId, segmentLength;
segmentId = tsStream.readBits(8);
switch (segmentId) {
case DVBSUB_ST_DISPLAY_DEFINITION:
if (BuildConfig.DEBUG) Log.d(TAG, " Parse Display Definition segment.");
DisplayDefinition tempDisplay = parseDisplayDefinitionSegment();
if (tempDisplay != null && tempDisplay.pageId == subtitleService.subtitlePageId) {
if (tempDisplay.displayWidth != subtitleService.displayDefinition.displayWidth ||
tempDisplay.displayHeight != subtitleService.displayDefinition.displayHeight ||
tempDisplay.displayWindowHorizontalPositionMaximum != subtitleService.displayDefinition.displayWindowHorizontalPositionMaximum ||
tempDisplay.displayWindowHorizontalPositionMinimum != subtitleService.displayDefinition.displayWindowHorizontalPositionMinimum ||
tempDisplay.displayWindowVerticalPositionMaximum != subtitleService.displayDefinition.displayWindowVerticalPositionMaximum ||
tempDisplay.displayWindowVerticalPositionMinimum != subtitleService.displayDefinition.displayWindowVerticalPositionMinimum ||
tempDisplay.flags != subtitleService.displayDefinition.flags) {
subtitleService.displayDefinition = tempDisplay;
subtitleService.displayDefinition.updateBitmapResolution();
} else {
subtitleService.displayDefinition.versionNumber = tempDisplay.versionNumber;
}
if (BuildConfig.DEBUG)
Log.d(TAG + "/DDS", " [versionNumber] = " + tempDisplay.versionNumber +
" [width/height] = " + (tempDisplay.displayWidth + 1) + "/" + (tempDisplay.displayHeight + 1) +
" Window[minX/minY/maxX/maxY] = " + tempDisplay.displayWindowHorizontalPositionMinimum +
"/" + tempDisplay.displayWindowVerticalPositionMinimum +
"/" + tempDisplay.displayWindowHorizontalPositionMaximum +
"/" + tempDisplay.displayWindowVerticalPositionMaximum
);
}
break;
case DVBSUB_ST_PAGE_COMPOSITION:
if (BuildConfig.DEBUG) Log.d(TAG, " Parse Page Composition segment.");
PageComposition tempPage = parsePageCompositionSegment();
if (tempPage != null && tempPage.pageId == subtitleService.subtitlePageId) {
if (tempPage.pageState == DVBSUB_PCS_STATE_NORMAL && subtitleService.pageComposition == null)
break;
subtitleService.pageComposition = tempPage;
}
break;
case DVBSUB_ST_REGION_COMPOSITION:
if (BuildConfig.DEBUG) Log.d(TAG, " Parse Region Composition segment.");
RegionComposition tempRegionComposition = parseRegionCompositionSegment();
if (tempRegionComposition != null && tempRegionComposition.pageId == subtitleService.subtitlePageId) {
subtitleService.regions.put(tempRegionComposition.regionId, tempRegionComposition);
}
break;
case DVBSUB_ST_CLUT_DEFINITION:
if (BuildConfig.DEBUG) Log.d(TAG, " Parse Clut Definition segment.");
ClutDefinition tempClutDefinition = parseClutDefinitionSegment();
if (tempClutDefinition != null) {
if (tempClutDefinition.pageId == subtitleService.subtitlePageId) {
subtitleService.cluts.put(tempClutDefinition.clutId, tempClutDefinition);
} else if (tempClutDefinition.pageId == subtitleService.ancillaryPageId) {
subtitleService.ancillaryCluts.put(tempClutDefinition.clutId, tempClutDefinition);
}
}
break;
case DVBSUB_ST_OBJECT_DATA:
if (BuildConfig.DEBUG) Log.d(TAG, " Parse Object Data segment.");
ObjectData tempObjectData = parseObjectDataSegment();
if (tempObjectData != null) {
if (tempObjectData.pageId == subtitleService.subtitlePageId) {
subtitleService.objects.put(tempObjectData.objectId, tempObjectData);
} else if (tempObjectData.pageId == subtitleService.ancillaryPageId) {
subtitleService.ancillaryObjects.put(tempObjectData.objectId, tempObjectData);
}
}
break;
case DVBSUB_ST_ENDOFDISPLAY:
pageId = tsStream.readBits(16);
segmentLength = tsStream.readBits(16);
if (BuildConfig.DEBUG)
Log.d(TAG, "pageId " + pageId + "end of display size = " + segmentLength);
tsStream.skipBits(segmentLength * 8);
break;
case DVBSUB_ST_STUFFING:
pageId = tsStream.readBits(16);
segmentLength = tsStream.readBits(16);
if (BuildConfig.DEBUG) Log.d(TAG, "pageId " + pageId + "stuffing size = " + segmentLength);
tsStream.skipBits(segmentLength * 8);
break;
default:
break;
}
}
private DisplayDefinition parseDisplayDefinitionSegment() {
/* Parse display definition segment. ETSI EN 300 743 7.2.1
SYNTAX SIZE SEMANTICS
--------------------------------------- ---- ------------------------------------------
display_definition_segment(){
sync_byte 8 An 8-bit field that shall be coded with the value '0000 1111'
segment_type 8 Indicates the type of data contained in the segment data field
page_id 16 Identifies the subtitle service of the data contained in this subtitling_segment
segment_length 16 Number of bytes contained in the segment_data_field
dds_version_number 4 Incremented when any of the contents of this segment change
display_window_flag 1 if "1" display the subtitle in the defined window
reserved 3
display_width 16 Specifies the maximum horizontal width of the display in pixels minus 1
display_height 16 Specifies the maximum vertical height of the display in lines minus 1
if (display_window_flag == 1) { With origin in the top-left of the screen:
display_window_horizontal_position_minimum
16 Specifies the left-hand most pixel of this DVB subtitle display set
display_window_horizontal_position_maximum
16 Specifies the right-hand most pixel of this DVB subtitle display set
display_window_vertical_position_minimum
16 Specifies the upper most line of this DVB subtitle display set
display_window_vertical_position_maximum
16 Specifies the bottom line of this DVB subtitle display set
}
}
*/
DisplayDefinition display = new DisplayDefinition();
display.pageId = tsStream.readBits(16);
tsStream.skipBits(16);
display.versionNumber = tsStream.readBits(4);
if (tsStream.readBits(1) == 1) {
display.flags |= DISPLAY_WINDOW_FLAG;
}
tsStream.skipBits(3);
display.displayWidth = tsStream.readBits(16);
display.displayHeight = tsStream.readBits(16);
if ((display.flags & DISPLAY_WINDOW_FLAG) != 0) {
display.displayWindowHorizontalPositionMinimum = tsStream.readBits(16);
display.displayWindowHorizontalPositionMaximum = tsStream.readBits(16);
display.displayWindowVerticalPositionMinimum = tsStream.readBits(16);
display.displayWindowVerticalPositionMaximum = tsStream.readBits(16);
} else {
display.displayWindowHorizontalPositionMinimum = 0;
display.displayWindowHorizontalPositionMaximum = display.displayWidth;
display.displayWindowVerticalPositionMinimum = 0;
display.displayWindowVerticalPositionMaximum = display.displayHeight;
}
return display;
}
private PageComposition parsePageCompositionSegment() {
/* Parse page composition segment. ETSI EN 300 743 7.2.2
SYNTAX SIZE SEMANTICS
--------------------------------------- ---- ------------------------------------------
page_composition_segment() {
sync_byte 8
segment_type 8
page_id 16
segment_length 16
page_time_out 8 The period after the page instace should be erased
page_version_number 4 Incremented when any of the contents of this segment change
page_state 2 The status of the subtitling page instance
reserved 2
while (processed_length < segment_length) { Page region list
region_id 8 Uniquely identifies a region within a page
reserved 8
region_horizontal_address 16 Horizontal address of the top left pixel of this region
region_vertical_address 16 Vertical address of the top line of this region
}
}
*/
PageComposition page = new PageComposition();
page.pageId = tsStream.readBits(16);
int remainingSegmentLength = tsStream.readBits(16);
page.pageTimeOut = tsStream.readBits(8);
page.pageVersionNumber = tsStream.readBits(4);
page.pageState = tsStream.readBits(2);
tsStream.skipBits(2);
if (page.pageState == DVBSUB_PCS_STATE_NORMAL &&
subtitleService.pageComposition != null &&
subtitleService.pageComposition.pageId == page.pageId &&
(subtitleService.pageComposition.pageVersionNumber + 1) % 16 == page.pageVersionNumber) {
//page.pageRegions = subtitleService.pageComposition.pageRegions;
if (BuildConfig.DEBUG) {
Log.d(TAG, " Updated Page Composition. pageId: " + page.pageId +
" version: " + page.pageVersionNumber +
" timeout: " + page.pageTimeOut
);
}
} else if (subtitleService.subtitlePageId == page.pageId) {
if (BuildConfig.DEBUG) {
if (page.pageState == DVBSUB_PCS_STATE_NORMAL) {
Log.d(TAG, " FAILED Page Composition update. pageId: " + page.pageId +
" Version(Old/New): " + (subtitleService.pageComposition != null ? subtitleService.pageComposition.pageVersionNumber : "NaN") + "/" + page.pageVersionNumber);
}
}
subtitleService.pageComposition = null;
subtitleService.regions = new SparseArray<>();
subtitleService.cluts = new SparseArray<>();
subtitleService.objects = new SparseArray<>();
if (BuildConfig.DEBUG) {
if (page.pageState != DVBSUB_PCS_STATE_NORMAL) {
Log.d(TAG, " New Page Composition. pageId: " + page.pageId +
" version: " + page.pageVersionNumber +
" timeout: " + page.pageTimeOut
);
}
}
}
remainingSegmentLength -= 2;
while (remainingSegmentLength > 0) {
PageRegion region = new PageRegion();
region.regionId = tsStream.readBits(8);
tsStream.skipBits(8);
region.regionHorizontalAddress = tsStream.readBits(16);
region.regionVerticalAddress = tsStream.readBits(16);
if (BuildConfig.DEBUG) {
Log.d(TAG, " " +
(page.pageRegions.get(region.regionId) == null ? "New" : "Upd.") +
" Page Region. regionId: " + region.regionId +
" (x/y): (" + region.regionHorizontalAddress + "/" + region.regionVerticalAddress + ")");
}
page.pageRegions.put(region.regionId, region);
remainingSegmentLength -= 6;
}
return page;
}
private RegionComposition parseRegionCompositionSegment() {
/* Parse region composition segment. ETSI EN 300 743 7.2.3
SYNTAX SIZE SEMANTICS
--------------------------------------- ---- ------------------------------------------
region_composition_segment() {
sync_byte 8
segment_type 8
page_id 16
segment_length 16
region_id 8 Uniquely identifies the region
region_version_number 4 Indicates the version of this region
region_fill_flag 1 If set the region is to be filled region_n-bit_pixel_code clut index
reserved 3
region_width 16 Specifies the horizontal length of this region
region_height 16 Specifies the vertical length of the region
region_level_of_compatibility 3 Code that indicates the minimum bithdepth of CLUT
region_depth 3 Identifies the intended pixel depth for this region
reserved 2
CLUT_id 8 Identifies the family of CLUTs that applies to this region
region_8-bit_pixel_code 8 Specifies the entry of the applied 8-bit CLUT as background colour
region_4-bit_pixel-code 4 Specifies the entry of the applied 4-bit CLUT as background colour
region_2-bit_pixel-code 2 Specifies the entry of the applied 2-bit CLUT as background colour
reserved 2
while (processed_length < segment_length) { list of region objects
object_id 16 Identifies an object that is shown in the region
object_type 2 Identifies the type of object
object_provider_flag 2 How this object is provided
object_horizontal_position 12 Specifies the horizontal position of the top left pixel of this object
reserved 4
object_vertical_position 12 Specifies the vertical position of the top left pixel of this object
if (object_type ==0x01 or object_type == 0x02){ UNSUPPORTED
foreground_pixel_code 8
background_pixel_code 8
}
}
}
*/
RegionComposition region = new RegionComposition();
region.pageId = tsStream.readBits(16);
int remainingSegmentLength = tsStream.readBits(16);
region.regionId = tsStream.readBits(8);
region.regionVersionNumber = tsStream.readBits(4);
if (tsStream.readBits(1) == 1) {
region.flags |= REGION_FILL_FLAG;
}
tsStream.skipBits(3);
region.regionWidth = tsStream.readBits(16);
region.regionHeight = tsStream.readBits(16);
region.regionLevelOfCompatibility = tsStream.readBits(3);
region.regionDepth = tsStream.readBits(3);
tsStream.skipBits(2);
region.clutId = tsStream.readBits(8);
tsStream.skipBits(16);
if (BuildConfig.DEBUG) {
Log.d(TAG, " New Region Composition. regionId: " + region.regionId +
" (w/h): (" + region.regionWidth + "/" + region.regionHeight + ")");
}
int arrayIndex = 0; // index by an incremental counter to allow repeating objects in one region
if (subtitleService.pageComposition != null && subtitleService.pageComposition.pageId == region.pageId &&
subtitleService.pageComposition.pageState == DVBSUB_PCS_STATE_NORMAL) {
RegionComposition tempRegion = subtitleService.regions.get(region.regionId);
if (tempRegion != null) {
region.regionObjects = tempRegion.regionObjects;
arrayIndex = region.regionObjects.size();
}
}
remainingSegmentLength -= 10;
RegionObject object;
while (remainingSegmentLength > 0) {
object = new RegionObject();
object.objectId = tsStream.readBits(16);
object.objectType = tsStream.readBits(2);
object.objectProvider = tsStream.readBits(2);
object.objectHorizontalPosition = tsStream.readBits(12);
tsStream.skipBits(4);
object.objectVerticalPosition = tsStream.readBits(12);
remainingSegmentLength -= 6;
if (object.objectType == 0x01 || object.objectType == 0x02) { // Only seems to affect to char subtitles
object.foregroundPixelCode = tsStream.readBits(8);
object.backgroundPixelCode = tsStream.readBits(8);
remainingSegmentLength -= 2;
}
if (BuildConfig.DEBUG) {
Log.d(TAG, " New Region Object[" + arrayIndex + "]." +
" objectId: " + object.objectId +
" (x/y): (" + object.objectHorizontalPosition + "/" + object.objectVerticalPosition + ")");
}
region.regionObjects.put(arrayIndex++, object);
}
return region;
}
private ClutDefinition parseClutDefinitionSegment() {
/* Parse CLUT definition segment. ETSI EN 300 743 7.2.4
SYNTAX SIZE SEMANTICS
--------------------------------------- ---- ------------------------------------------
CLUT_definition_segment() {
sync_byte 8
segment_type 8
page_id 16
segment_length 16
CLUT-id 8 Uniquely identifies within a page the CLUT family
CLUT_version_number 4 Indicates the version of this segment data
reserved 4
while (processed_length < segment_length) { Clut entries list
CLUT_entry_id 8 Specifies the entry number of the CLUT
2-bit/entry_CLUT_flag 1 Indicates this entry is to be loaded into the 2-bit/entry CLUT
4-bit/entry_CLUT_flag 1 Indicates this entry is to be loaded into the 4-bit/entry CLUT
8-bit/entry_CLUT_flag 1 Indicates this entry is to be loaded into the 8-bit/entry CLUT
reserved 4
full_range_flag 1 Indicates that the Y_value, Cr_value, Cb_value and T_value
fields have the full 8-bit resolution
if full_range_flag =='1' {
Y-value 8 The Y value for this CLUT entry.
Cr-value 8 The Cr value for this CLUT entry.
Cb-value 8 The Cb value for this CLUT entry.
T-value 8 The Transparency value for this CLUT entry. 0 = no transparency
} else {
Y-value 6 The Y value for this CLUT entry.
Cr-value 4 The Cr value for this CLUT entry.
Cb-value 4 The Cb value for this CLUT entry.
T-value 2 The Transparency value for this CLUT entry. 0 = no transparency
}
}
}
*/
ClutDefinition clut = new ClutDefinition();
clut.pageId = tsStream.readBits(16);
int remainingSegmentLength = tsStream.readBits(16);
clut.clutId = tsStream.readBits(8);
clut.clutVersionNumber = tsStream.readBits(4);
tsStream.skipBits(4);
remainingSegmentLength -= 2;
ClutEntry entry;
int Y, Cb, Cr, T;
int entryId, entryFlags;
while (remainingSegmentLength > 0) {
entryId = tsStream.readBits(8);
entryFlags = tsStream.readBits(8);
if ((entryFlags & 0x80) != 0) {
entry = clut.clutEntries2bit[entryId];
} else if ((entryFlags & 0x40) != 0) {
entry = clut.clutEntries4bit[entryId];
} else {
entry = clut.clutEntries8bit[entryId];
}
entry.flags = (byte) (entryFlags & 0xE1);
if ((entry.flags & 0x01) != 0) {
Y = tsStream.readBits(8);
Cr = tsStream.readBits(8);
Cb = tsStream.readBits(8);
T = tsStream.readBits(8);
remainingSegmentLength -= 6;
} else {
Y = tsStream.readBits(6) << 2;
Cr = tsStream.readBits(4) << 4;
Cb = tsStream.readBits(4) << 4;
T = tsStream.readBits(2) << 6;
remainingSegmentLength -= 4;
}
if (Y == 0x00) {
Cr = 0x00;
Cb = 0x00;
T = 0xFF;
}
entry.clutYCbCrT(Y, Cb, Cr, T);
}
return clut;
}
private ObjectData parseObjectDataSegment() {
/* Parse object data segment. ETSI EN 300 743 7.2.5
SYNTAX SIZE SEMANTICS
--------------------------------------- ---- ------------------------------------------
object_data_segment() {
sync_byte 8
segment_type 8
page_id 16
segment_length 16
object_id 16 Uniquely identifies within the page the object
object_version_number 4 Indicates the version of this segment data
object_coding_method 2 Specifies the method used to code the object
non_modifying_colour_flag 1 Indicates that the CLUT entry value '1' is a non modifying colour
reserved 1
if (object_coding_method == '00'){
top_field_data_block_length 16 Specifies the number of bytes contained in his pixel-data_sub-blocks
bottom_field_data_block_length 16 Specifies the number of bytes contained in his pixel-data_sub-blocks
while(processed_length<top_field_data_block_length)
pixel-data_sub-block()
while (processed_length<bottom_field_data_block_length)
pixel-data_sub-block()
if (!wordaligned())
8_stuff_bits 8
}
if (object_coding_method == '01') { UNSUPPORTED
number of codes 8
for (i == 1, i <= number of codes, i ++)
character_code 16
}
}
*/
ObjectData object = new ObjectData();
object.pageId = tsStream.readBits(16);
tsStream.skipBits(16); // remainingSegmentLength
object.objectId = tsStream.readBits(16);
object.objectVersionNumber = tsStream.readBits(4);
object.objectCodingMethod = tsStream.readBits(2);
if (tsStream.readBits(1) == 1) {
object.flags |= OBJECT_NON_MODIFYING_COLOUR_FLAG;
}
tsStream.skipBits(1);
if (object.objectCodingMethod == DVBSUB_ODS_CHAR_CODED) {
/* not implemented yet */
object.numberOfCodes = tsStream.readBits(8);
tsStream.skipBits(object.numberOfCodes * 16);
} else if (object.objectCodingMethod == DVBSUB_ODS_PIXEL_CODED) {
object.topFieldDataLength = tsStream.readBits(16);
object.bottomFieldDataLength = tsStream.readBits(16);
object.topFieldData = new byte[object.topFieldDataLength];
System.arraycopy(tsStream.data, tsStream.getPosition() / 8, object.topFieldData, 0, object.topFieldDataLength);
tsStream.skipBits(object.topFieldDataLength * 8);
object.bottomFieldData = new byte[object.bottomFieldDataLength];
if (object.bottomFieldDataLength == 0) {
object.bottomFieldData = object.topFieldData;
} else {
System.arraycopy(tsStream.data, tsStream.getPosition() / 8, object.bottomFieldData, 0, object.bottomFieldDataLength);
tsStream.skipBits(object.bottomFieldDataLength * 8);
}
}
return object;
}
private Bitmap parsePixelDataSubBlocks(ObjectData object, ClutDefinition clut, int regionDepth,
int horizontalAddress, int verticalAddress) {
/* Parse pixel-data sub-block. ETSI EN 300 743 7.2.5.1
SYNTAX SIZE
--------------------------------------- ----
pixel-data_sub-block() {
data_type 8
if data_type =='0x10' {
repeat {
2-bit/pixel_code_string()
} until (end of 2-bit/pixel_code_string)
while (!bytealigned())
2_stuff_bits 2
if data_type =='0x11' {
repeat {
4-bit/pixel_code_string()
} until (end of 4-bit/pixel_code_string)
if (!bytealigned())
4_stuff_bits 4
}
}
if data_type =='0x12' {
repeat {
8-bit/pixel_code_string()
} until (end of 8-bit/pixel_code_string)
}
if data_type =='0x20'
2_to_4-bit_map-table 16
if data_type =='0x21'
2_to_8-bit_map-table 32
if data_type =='0x22'
4_to_8-bit_map-table 128
}
*/
int line, column;
int i;
byte[] clutMapTable, clutMapTable24, clutMapTable28, clutMapTable48;
ClutEntry[] clutEntries;
if (regionDepth == DVBSUB_RCS_BITDEPTH_8) {
clutEntries = clut.clutEntries8bit;
} else if (regionDepth == DVBSUB_RCS_BITDEPTH_4) {
clutEntries = clut.clutEntries4bit;
} else {
clutEntries = clut.clutEntries2bit;
}
int lineHeight;
ParsableBitArray[] pixelData = new ParsableBitArray[2];
pixelData[0] = new ParsableBitArray(object.topFieldData);
if (object.bottomFieldDataLength == 0) {
lineHeight = 2;
} else {
lineHeight = 1;
pixelData[1] = new ParsableBitArray(object.bottomFieldData);
}
ParsableBitArray data;
int field = 0;
while (field < 2) {
data = pixelData[field];
column = horizontalAddress;
line = verticalAddress + field;
clutMapTable24 = null;
clutMapTable28 = null;
clutMapTable48 = null;
while (data.bitsLeft() > 0) {
switch (data.readBits(8)) {
case DVBSUB_DT_2BP_CODE_STRING:
if (regionDepth == DVBSUB_RCS_BITDEPTH_8) {
clutMapTable = clutMapTable28 == null ? defaultMap28 : clutMapTable28;
} else if (regionDepth == DVBSUB_RCS_BITDEPTH_4) {
clutMapTable = clutMapTable24 == null ? defaultMap24 : clutMapTable24;
} else {
clutMapTable = null;
}
column += dvbSub2BitPixelCodeString(data, lineHeight, clutEntries, clutMapTable,
column, line, (object.flags & OBJECT_NON_MODIFYING_COLOUR_FLAG) == 0);
if ((i = data.getPosition() % 8) != 0) {
data.skipBits(7 - i + 1);
}
break;
case DVBSUB_DT_4BP_CODE_STRING:
if (regionDepth == DVBSUB_RCS_BITDEPTH_8)
clutMapTable = clutMapTable48 == null ? defaultMap48 : clutMapTable48;
else
clutMapTable = null;
column += dvbSub4BitPixelCodeString(data, lineHeight, clutEntries, clutMapTable,
column, line, (object.flags & OBJECT_NON_MODIFYING_COLOUR_FLAG) == 0);
if ((i = data.getPosition() % 8) != 0) {
data.skipBits(7 - i + 1);
}
break;
case DVBSUB_DT_8BP_CODE_STRING:
column += dvbSub8BitPixelCodeString(data, lineHeight, clutEntries, null,
column, line, (object.flags & OBJECT_NON_MODIFYING_COLOUR_FLAG) == 0);
break;
case DVBSUB_DT_24_TABLE_DATA:
clutMapTable24 = new byte[4];
for (i = 0; i < 4; i++) {
clutMapTable24[i] = (byte) data.readBits(4);
}
break;
case DVBSUB_DT_28_TABLE_DATA:
clutMapTable28 = new byte[4];
for (i = 0; i < 4; i++) {
clutMapTable28[i] = (byte) data.readBits(8);
}
break;
case DVBSUB_DT_48_TABLE_DATA:
clutMapTable48 = new byte[16];
for (i = 0; i < 4; i++) {
clutMapTable48[i] = (byte) data.readBits(8);
}
break;
case DVBSUB_DT_END_LINE:
column = horizontalAddress;
line += 2;
break;
default:
break;
}
}
field += lineHeight;
}
return null;
}
private int dvbSub2BitPixelCodeString(ParsableBitArray data, int lineHeigth,
ClutEntry[] clutEntries, byte[] clutMapTable,
int column, int line, boolean paint) {
/* Parse 2-bit/pixel code string. ETSI EN 300 743 7.2.5.2
SYNTAX SIZE
--------------------------------------- ----
2-bit/pixel_code_string() {
if (nextbits() != '00') {
2-bit_pixel-code 2
} else {
2-bit_zero 2
switch_1 1 bslbf
if (switch_1 == '1') {
run_length_3-10 3
2-bit_pixel-code 2
} else {
switch_2 1
if (switch_2 == '0') {
switch_3 2
if (switch_3 == '10') {
run_length_12-27 4
2-bit_pixel-code 2
}
if (switch_3 == '11') {
run_length_29-284 8
2-bit_pixel-code 2
}
}
}
}
}
*/
int savedColumn = column, peek, runLength, clutIdx = 0x00, colour;
boolean endOfPixelCodeString = false;
while (!endOfPixelCodeString) {
runLength = 0;
peek = data.readBits(2);
if (peek != 0x00) {
runLength = 1;
clutIdx = peek;
} else {
peek = data.readBits(1);
if (peek == 0x01) {
runLength = 3 + data.readBits(3);
clutIdx = data.readBits(2);
} else {
peek = data.readBits(1);
if (peek == 0x00) {
peek = data.readBits(2);
switch (peek) {
case 0x00:
endOfPixelCodeString = true;
break;
case 0x01:
runLength = 2;
clutIdx = 0x00;
break;
case 0x02:
runLength = 12 + data.readBits(4);
clutIdx = data.readBits(2);
break;
case 0x03:
runLength = 29 + data.readBits(8);
clutIdx = data.readBits(2);
break;
}
}
}
}
if (runLength != 0 && paint) {
colour = clutMapTable != null ? clutEntries[clutMapTable[clutIdx]].ARGB
: clutEntries[clutIdx].ARGB;
defaultPaint.setColor(colour);
canvas.drawRect(
column, line, column + runLength, line + lineHeigth, defaultPaint);
}
column += runLength;
}
return column - savedColumn;
}
private int dvbSub4BitPixelCodeString(ParsableBitArray data, int lineHeigth,
ClutEntry[] clutEntries, byte[] clutMapTable,
int column, int line, boolean paint) {
/* Parse 4-bit/pixel code string. ETSI EN 300 743 7.2.5.2
SYNTAX SIZE
--------------------------------------- ----
4-bit/pixel_code_string() {
if (nextbits() != '0000') {
4-bit_pixel-code 4
} else {
4-bit_zero 4
switch_1 1
if (switch_1 == '0') {
if (nextbits() != '000')
run_length_3-9 3
else
end_of_string_signal 3
} else {
switch_2 1
if (switch_2 == '0') {
run_length_4-7 2
4-bit_pixel-code 4
} else {
switch_3 2
if (switch_3 == '10') {
run_length_9-24 4
4-bit_pixel-code 4
}
if (switch_3 == '11') {
run_length_25-280 8
4-bit_pixel-code 4
}
}
}
}
}
*/
int savedColumn = column, peek, runLength, clutIdx = 0x00, colour;
boolean endOfPixelCodeString = false;
while (!endOfPixelCodeString) {
runLength = 0;
peek = data.readBits(4);
if (peek != 0x00) {
runLength = 1;
clutIdx = peek;
} else {
peek = data.readBits(1);
if (peek == 0x00) {
peek = data.readBits(3);
if (peek != 0x00) {
runLength = 2 + peek;
clutIdx = 0x00;
} else {
endOfPixelCodeString = true;
}
} else {
peek = data.readBits(1);
if (peek == 0x00) {
runLength = 4 + data.readBits(2);
clutIdx = data.readBits(4);
} else {
peek = data.readBits(2);
switch (peek) {
case 0x00:
runLength = 1;
clutIdx = 0x00;
break;
case 0x01:
runLength = 2;
clutIdx = 0x00;
break;
case 0x02:
runLength = 9 + data.readBits(4);
clutIdx = data.readBits(4);
break;
case 0x03:
runLength = 25 + data.readBits(8);
clutIdx = data.readBits(4);
break;
}
}
}
}
if (runLength != 0 && paint) {
colour = clutMapTable != null ? clutEntries[clutMapTable[clutIdx]].ARGB
: clutEntries[clutIdx].ARGB;
defaultPaint.setColor(colour);
canvas.drawRect(
column, line, column + runLength, line + lineHeigth, defaultPaint);
}
column += runLength;
}
return column - savedColumn;
}
private int dvbSub8BitPixelCodeString(ParsableBitArray data, int lineHeigth,
ClutEntry[] clutEntries, byte[] clutMapTable,
int column, int line, boolean paint) {
/* Parse 8-bit/pixel code string. ETSI EN 300 743 7.2.5.2
SYNTAX SIZE
--------------------------------------- ----
8-bit/pixel_code_string() {
if (nextbits() != '0000 0000') {
8-bit_pixel-code 8
} else {
8-bit_zero 8
switch_1 1
if switch_1 == '0' {
if nextbits() != '000 0000'
run_length_1-127 7
else
end_of_string_signal 7
} else {
run_length_3-127 7
8-bit_pixel-code 8
}
}
}
*/
int savedColumn = column, peek, runLength, clutIdx = 0x00, colour;
boolean endOfPixelCodeString = false;
while (!endOfPixelCodeString) {
runLength = 0;
peek = data.readBits(8);
if (peek != 0x00) {
runLength = 1;
clutIdx = peek;
} else {
peek = data.readBits(1);
if (peek == 0x00) {
peek = data.readBits(7);
if (peek != 0x00) {
runLength = peek;
clutIdx = 0x00;
} else {
endOfPixelCodeString = true;
}
} else {
runLength = data.readBits(7);
clutIdx = data.readBits(8);
}
}
if (runLength != 0 && paint) {
colour = clutMapTable != null ? clutEntries[clutMapTable[clutIdx]].ARGB
: clutEntries[clutIdx].ARGB;
defaultPaint.setColor(colour);
canvas.drawRect(
column, line, column + runLength, line + lineHeigth, defaultPaint);
}
column += runLength;
}
return column - savedColumn;
}
/**
* Takes a subtitling packet, parses the included segments and returns the list of {@link Cue}s
* defined in them
*
* @param input
* @param inputSize
* @return list of {@link Cue}s contained in the packet or null if there is an error or subtitle
* is incomplete
*/
List<Cue> dvbSubsDecode(byte[] input, int inputSize) {
/* process PES PACKET. ETSI EN 300 743 7.1
SYNTAX SIZE SEMANTICS
--------------------------------------- ---- ------------------------------------------
PES_data_field() {
data_identifier 8 For DVB subtitle streams it shall be 0x20
subtitle_stream_id 8 For DVB subtitling stream it shall be 0x00
while nextbits() == '0000 1111' {
Subtitling_segment()
}
end_of_PES_data_field_marker 8 An 8-bit field with fixed contents '1111 1111'
*/
if (input != null) {
tsStream = new ParsableBitArray(input, inputSize);
} else {
return null;
}
if (!isSet(FLAG_PES_STRIPPED_DVBSUB)) {
if (tsStream.readBits(8) != 0x20) { // data_identifier
return null;
}
if (tsStream.readBits(8) != 0x00) { // subtitle_stream_id
return null;
}
}
if (BuildConfig.DEBUG) Log.d(TAG, "New PES subtitle packet.");
int sync = tsStream.readBits(8);
// test for segment Sync Byte and account for possible additional wordalign byte in Object data segment
while (sync == 0x0f || (sync == 0x00 && (sync = tsStream.readBits(8)) == 0x0f)) {
parseSubtitlingSegment();
if (isSet(FLAG_PES_STRIPPED_DVBSUB) && tsStream.bitsLeft() == 0) {
break;
}
sync = tsStream.readBits(8);
}
if (sync == 0xff || (isSet(FLAG_PES_STRIPPED_DVBSUB) && tsStream.bitsLeft() == 0)) { // end_of_PES_data_field_marker
// paint the current Subtitle definition
if (subtitleService.pageComposition != null) {
List<Cue> cueList = new ArrayList<>();
if (BuildConfig.DEBUG) {
Log.d(TAG, "Rendering subtitle. w: " + subtitleService.displayDefinition.displayWidth +
" h: " + subtitleService.displayDefinition.displayHeight);
if ((subtitleService.displayDefinition.flags & DISPLAY_WINDOW_FLAG) != 0) {
Log.d(TAG, " Window dimensions (x/y/w/h): (" +
subtitleService.displayDefinition.displayWindowHorizontalPositionMinimum + "/" +
subtitleService.displayDefinition.displayWindowVerticalPositionMinimum + "/" +
(subtitleService.displayDefinition.displayWindowHorizontalPositionMaximum -
subtitleService.displayDefinition.displayWindowHorizontalPositionMinimum) + "/" +
(subtitleService.displayDefinition.displayWindowVerticalPositionMaximum -
subtitleService.displayDefinition.displayWindowVerticalPositionMinimum) + ")");
}
}
int a, b;
PageRegion pageRegion;
RegionComposition regionComposition;
int baseHorizontalAddress, baseVerticalAddress;
ObjectData object;
ClutDefinition clut;
int regionKey;
// process page regions
for (a = 0; a < subtitleService.pageComposition.pageRegions.size(); a++) {
regionKey = subtitleService.pageComposition.pageRegions.keyAt(a);
pageRegion = subtitleService.pageComposition.pageRegions.get(regionKey);
regionComposition = subtitleService.regions.get(regionKey);
baseHorizontalAddress = pageRegion.regionHorizontalAddress;
baseVerticalAddress = pageRegion.regionVerticalAddress;
if ((subtitleService.displayDefinition.flags & DISPLAY_WINDOW_FLAG) != 0) {
baseHorizontalAddress +=
subtitleService.displayDefinition.displayWindowHorizontalPositionMinimum;
baseVerticalAddress +=
subtitleService.displayDefinition.displayWindowVerticalPositionMinimum;
}
// clip object drawing to the current region and display definition window
canvas.clipRect(
baseHorizontalAddress, baseVerticalAddress,
Math.min(baseHorizontalAddress + regionComposition.regionWidth,
subtitleService.displayDefinition.displayWindowHorizontalPositionMaximum),
Math.min(baseVerticalAddress + regionComposition.regionHeight,
subtitleService.displayDefinition.displayWindowVerticalPositionMaximum),
Region.Op.REPLACE);
if ((clut = subtitleService.cluts.get(regionComposition.clutId)) == null) {
if ((clut = subtitleService.ancillaryCluts.get(regionComposition.clutId)) == null) {
clut = defaultClut;
}
}
if (BuildConfig.DEBUG) {
Log.d(TAG, " Region: " + regionKey + " (x/y/w/h): (" +
baseHorizontalAddress + "/" + baseVerticalAddress + "/" +
(baseHorizontalAddress + regionComposition.regionWidth - 1) + "/" +
(baseVerticalAddress + regionComposition.regionHeight - 1) + ")"
);
canvas.drawRect(
baseHorizontalAddress, baseVerticalAddress,
baseHorizontalAddress + regionComposition.regionWidth - 1,
baseVerticalAddress + regionComposition.regionHeight - 1,
debugRegionPaint);
}
RegionObject regionObject;
int objectKey;
// process regions compositions
for (b = 0; b < regionComposition.regionObjects.size(); b++) {
objectKey = regionComposition.regionObjects.keyAt(b);
regionObject = regionComposition.regionObjects.get(objectKey);
if (BuildConfig.DEBUG) {
Log.d(TAG, " Object[" + objectKey + "]. objectId: " + regionObject.objectId + " (x/y): (" +
(baseHorizontalAddress + regionObject.objectHorizontalPosition) + "/" +
(baseVerticalAddress + regionObject.objectVerticalPosition) + ")"
);
canvas.drawRect(
baseHorizontalAddress + regionObject.objectHorizontalPosition,
baseVerticalAddress + regionObject.objectVerticalPosition,
baseHorizontalAddress + regionObject.objectHorizontalPosition + regionComposition.regionWidth - 1,
baseVerticalAddress + regionObject.objectVerticalPosition + regionComposition.regionHeight - 1,
debugObjectPaint);
}
if ((object = subtitleService.objects.get(regionObject.objectId)) == null) {
if ((object = subtitleService.ancillaryObjects.get(regionObject.objectId)) == null) {
continue;
}
}
parsePixelDataSubBlocks(object, clut, regionComposition.regionDepth,
baseHorizontalAddress + regionObject.objectHorizontalPosition,
baseVerticalAddress + regionObject.objectVerticalPosition);
}
// fill the region if needed
if ((regionComposition.flags & REGION_FILL_FLAG) != 0) {
int colour;
if (regionComposition.regionDepth == DVBSUB_RCS_BITDEPTH_8) {
colour = clut.clutEntries8bit[regionComposition.region8bitPixelCode].ARGB;
} else if (regionComposition.regionDepth == DVBSUB_RCS_BITDEPTH_4) {
colour = clut.clutEntries4bit[regionComposition.region4bitPixelCode].ARGB;
} else {
colour = clut.clutEntries2bit[regionComposition.region2bitPixelCode].ARGB;
}
fillRegionPaint.setColor(colour);
canvas.drawRect(
baseHorizontalAddress, baseVerticalAddress,
baseHorizontalAddress + regionComposition.regionWidth,
baseVerticalAddress + regionComposition.regionHeight,
fillRegionPaint);
}
Bitmap cueBitmap = Bitmap.createBitmap(bitmap,
baseHorizontalAddress, baseVerticalAddress,
regionComposition.regionWidth, regionComposition.regionHeight);
canvas.drawColor(Color.TRANSPARENT, PorterDuff.Mode.CLEAR);
regionComposition.cue = new Cue(cueBitmap,
(float) baseHorizontalAddress / subtitleService.displayDefinition.displayWidth, Cue.ANCHOR_TYPE_START,
(float) baseVerticalAddress / subtitleService.displayDefinition.displayHeight, Cue.ANCHOR_TYPE_START,
(float) regionComposition.regionWidth / subtitleService.displayDefinition.displayWidth,
(float) regionComposition.regionHeight / subtitleService.displayDefinition.displayHeight);
cueList.add(regionComposition.cue);
}
return cueList;
}
} else {
Log.d(TAG, "Unexpected...");
}
return null;
}
private boolean isSet(@Flags int flag) {
return (flags & flag) != 0;
}
}
library/core/src/main/java/com/google/android/exoplayer2/text/dvb/DvbSubtitle.java 0 → 100644
/*
* Copyright (C) 2017 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.google.android.exoplayer2.text.dvb;
import com.google.android.exoplayer2.C;
import com.google.android.exoplayer2.text.Cue;
import com.google.android.exoplayer2.text.Subtitle;
import java.util.Collections;
import java.util.List;
/**
* A representation of a DVB subtitle.
*/
/* package */ final class DvbSubtitle implements Subtitle {
private final List<Cue> cues;
public DvbSubtitle(List<Cue> cues) {
if (cues == null) {
this.cues = Collections.emptyList();
} else {
this.cues = cues;
}
}
@Override
public int getNextEventTimeIndex(long timeUs) {
return C.INDEX_UNSET;
}
@Override
public int getEventTimeCount() {
return 1;
}
@Override
public long getEventTime(int index) {
return 0;
}
@Override
public List<Cue> getCues(long timeUs) {
return cues;
}
}
\ No newline at end of file
library/core/src/main/java/com/google/android/exoplayer2/util/MimeTypes.java
...@@ -81,6 +81,7 @@ public final class MimeTypes { ...@@ -81,6 +81,7 @@ public final class MimeTypes {
public static final String APPLICATION_SCTE35 = BASE_TYPE_APPLICATION + "/x-scte35"; public static final String APPLICATION_SCTE35 = BASE_TYPE_APPLICATION + "/x-scte35";
public static final String APPLICATION_CAMERA_MOTION = BASE_TYPE_APPLICATION + "/x-camera-motion"; public static final String APPLICATION_CAMERA_MOTION = BASE_TYPE_APPLICATION + "/x-camera-motion";
public static final String APPLICATION_EMSG = BASE_TYPE_APPLICATION + "/x-emsg"; public static final String APPLICATION_EMSG = BASE_TYPE_APPLICATION + "/x-emsg";
public static final String APPLICATION_DVBSUBS = BASE_TYPE_APPLICATION + "/dvbsubs";
private MimeTypes() {} private MimeTypes() {}
...@@ -222,7 +223,7 @@ public final class MimeTypes { ...@@ -222,7 +223,7 @@ public final class MimeTypes {
|| APPLICATION_SUBRIP.equals(mimeType) || APPLICATION_TTML.equals(mimeType) || APPLICATION_SUBRIP.equals(mimeType) || APPLICATION_TTML.equals(mimeType)
|| APPLICATION_TX3G.equals(mimeType) || APPLICATION_MP4VTT.equals(mimeType) || APPLICATION_TX3G.equals(mimeType) || APPLICATION_MP4VTT.equals(mimeType)
|| APPLICATION_RAWCC.equals(mimeType) || APPLICATION_VOBSUB.equals(mimeType) || APPLICATION_RAWCC.equals(mimeType) || APPLICATION_VOBSUB.equals(mimeType)
|| APPLICATION_PGS.equals(mimeType)) { || APPLICATION_PGS.equals(mimeType) || APPLICATION_DVBSUBS.equals(mimeType)) {
return C.TRACK_TYPE_TEXT; return C.TRACK_TYPE_TEXT;
} else if (APPLICATION_ID3.equals(mimeType) } else if (APPLICATION_ID3.equals(mimeType)
|| APPLICATION_EMSG.equals(mimeType) || APPLICATION_EMSG.equals(mimeType)
......
library/ui/src/main/java/com/google/android/exoplayer2/ui/SubtitlePainter.java
...@@ -77,6 +77,7 @@ import com.google.android.exoplayer2.util.Util; ...@@ -77,6 +77,7 @@ import com.google.android.exoplayer2.util.Util;
@Cue.AnchorType @Cue.AnchorType
private int cuePositionAnchor; private int cuePositionAnchor;
private float cueSize; private float cueSize;
private float cueBitmapHeight;
private boolean applyEmbeddedStyles; private boolean applyEmbeddedStyles;
private int foregroundColor; private int foregroundColor;
private int backgroundColor; private int backgroundColor;
...@@ -173,6 +174,7 @@ import com.google.android.exoplayer2.util.Util; ...@@ -173,6 +174,7 @@ import com.google.android.exoplayer2.util.Util;
&& this.cuePosition == cue.position && this.cuePosition == cue.position
&& Util.areEqual(this.cuePositionAnchor, cue.positionAnchor) && Util.areEqual(this.cuePositionAnchor, cue.positionAnchor)
&& this.cueSize == cue.size && this.cueSize == cue.size
&& this.cueBitmapHeight == cue.bitmapHeight
&& this.applyEmbeddedStyles == applyEmbeddedStyles && this.applyEmbeddedStyles == applyEmbeddedStyles
&& this.foregroundColor == style.foregroundColor && this.foregroundColor == style.foregroundColor
&& this.backgroundColor == style.backgroundColor && this.backgroundColor == style.backgroundColor
...@@ -200,6 +202,7 @@ import com.google.android.exoplayer2.util.Util; ...@@ -200,6 +202,7 @@ import com.google.android.exoplayer2.util.Util;
this.cuePosition = cue.position; this.cuePosition = cue.position;
this.cuePositionAnchor = cue.positionAnchor; this.cuePositionAnchor = cue.positionAnchor;
this.cueSize = cue.size; this.cueSize = cue.size;
this.cueBitmapHeight = cue.bitmapHeight;
this.applyEmbeddedStyles = applyEmbeddedStyles; this.applyEmbeddedStyles = applyEmbeddedStyles;
this.foregroundColor = style.foregroundColor; this.foregroundColor = style.foregroundColor;
this.backgroundColor = style.backgroundColor; this.backgroundColor = style.backgroundColor;
...@@ -312,7 +315,8 @@ import com.google.android.exoplayer2.util.Util; ...@@ -312,7 +315,8 @@ import com.google.android.exoplayer2.util.Util;
float anchorX = parentLeft + (parentWidth * cuePosition); float anchorX = parentLeft + (parentWidth * cuePosition);
float anchorY = parentTop + (parentHeight * cueLine); float anchorY = parentTop + (parentHeight * cueLine);
int width = Math.round(parentWidth * cueSize); int width = Math.round(parentWidth * cueSize);
int height = Math.round(width * ((float) cueBitmap.getHeight() / cueBitmap.getWidth())); int height = cueBitmapHeight != -1 ? Math.round(parentHeight * cueBitmapHeight)
: Math.round(width * ((float) cueBitmap.getHeight() / cueBitmap.getWidth()));
int x = Math.round(cueLineAnchor == Cue.ANCHOR_TYPE_END ? (anchorX - width) int x = Math.round(cueLineAnchor == Cue.ANCHOR_TYPE_END ? (anchorX - width)
: cueLineAnchor == Cue.ANCHOR_TYPE_MIDDLE ? (anchorX - (width / 2)) : anchorX); : cueLineAnchor == Cue.ANCHOR_TYPE_MIDDLE ? (anchorX - (width / 2)) : anchorX);
int y = Math.round(cuePositionAnchor == Cue.ANCHOR_TYPE_END ? (anchorY - height) int y = Math.round(cuePositionAnchor == Cue.ANCHOR_TYPE_END ? (anchorY - height)
......
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