summaryrefslogtreecommitdiff
path: root/isoparser/src/main/java/com/googlecode/mp4parser/authoring/tracks/.svn/text-base/AC3TrackImpl.java.svn-base
diff options
context:
space:
mode:
Diffstat (limited to 'isoparser/src/main/java/com/googlecode/mp4parser/authoring/tracks/.svn/text-base/AC3TrackImpl.java.svn-base')
-rw-r--r--isoparser/src/main/java/com/googlecode/mp4parser/authoring/tracks/.svn/text-base/AC3TrackImpl.java.svn-base513
1 files changed, 0 insertions, 513 deletions
diff --git a/isoparser/src/main/java/com/googlecode/mp4parser/authoring/tracks/.svn/text-base/AC3TrackImpl.java.svn-base b/isoparser/src/main/java/com/googlecode/mp4parser/authoring/tracks/.svn/text-base/AC3TrackImpl.java.svn-base
deleted file mode 100644
index 5e5b2cd..0000000
--- a/isoparser/src/main/java/com/googlecode/mp4parser/authoring/tracks/.svn/text-base/AC3TrackImpl.java.svn-base
+++ /dev/null
@@ -1,513 +0,0 @@
-package com.googlecode.mp4parser.authoring.tracks;
-
-import com.coremedia.iso.boxes.*;
-import com.coremedia.iso.boxes.sampleentry.AudioSampleEntry;
-import com.googlecode.mp4parser.authoring.AbstractTrack;
-import com.googlecode.mp4parser.authoring.TrackMetaData;
-import com.googlecode.mp4parser.boxes.AC3SpecificBox;
-import com.googlecode.mp4parser.boxes.mp4.objectdescriptors.BitReaderBuffer;
-
-import java.io.InputStream;
-import java.io.IOException;
-import java.nio.ByteBuffer;
-import java.util.Date;
-import java.util.LinkedList;
-import java.util.List;
-
-public class AC3TrackImpl extends AbstractTrack {
- TrackMetaData trackMetaData = new TrackMetaData();
- SampleDescriptionBox sampleDescriptionBox;
-
- int samplerate;
- int bitrate;
- int channelCount;
-
- int fscod;
- int bsid;
- int bsmod;
- int acmod;
- int lfeon;
- int frmsizecod;
-
- int frameSize;
- int[][][][] bitRateAndFrameSizeTable;
-
- private InputStream inputStream;
- private List<ByteBuffer> samples;
- boolean readSamples = false;
- List<TimeToSampleBox.Entry> stts;
- private String lang = "und";
-
- public AC3TrackImpl(InputStream fin, String lang) throws IOException {
- this.lang = lang;
- parse(fin);
- }
-
- public AC3TrackImpl(InputStream fin) throws IOException {
- parse(fin);
- }
-
- private void parse(InputStream fin) throws IOException {
- inputStream = fin;
- bitRateAndFrameSizeTable = new int[19][2][3][2];
- stts = new LinkedList<TimeToSampleBox.Entry>();
- initBitRateAndFrameSizeTable();
- if (!readVariables()) {
- throw new IOException();
- }
-
- sampleDescriptionBox = new SampleDescriptionBox();
- AudioSampleEntry audioSampleEntry = new AudioSampleEntry("ac-3");
- audioSampleEntry.setChannelCount(2); // According to ETSI TS 102 366 Annex F
- audioSampleEntry.setSampleRate(samplerate);
- audioSampleEntry.setDataReferenceIndex(1);
- audioSampleEntry.setSampleSize(16);
-
- AC3SpecificBox ac3 = new AC3SpecificBox();
- ac3.setAcmod(acmod);
- ac3.setBitRateCode(frmsizecod >> 1);
- ac3.setBsid(bsid);
- ac3.setBsmod(bsmod);
- ac3.setFscod(fscod);
- ac3.setLfeon(lfeon);
- ac3.setReserved(0);
-
- audioSampleEntry.addBox(ac3);
- sampleDescriptionBox.addBox(audioSampleEntry);
-
- trackMetaData.setCreationTime(new Date());
- trackMetaData.setModificationTime(new Date());
- trackMetaData.setLanguage(lang);
- trackMetaData.setTimescale(samplerate); // Audio tracks always use samplerate as timescale
-
- samples = new LinkedList<ByteBuffer>();
- if (!readSamples()) {
- throw new IOException();
- }
- }
-
-
- public List<ByteBuffer> getSamples() {
-
- return samples;
- }
-
- public SampleDescriptionBox getSampleDescriptionBox() {
- return sampleDescriptionBox;
- }
-
- public List<TimeToSampleBox.Entry> getDecodingTimeEntries() {
- return stts;
- }
-
- public List<CompositionTimeToSample.Entry> getCompositionTimeEntries() {
- return null;
- }
-
- public long[] getSyncSamples() {
- return null;
- }
-
- public List<SampleDependencyTypeBox.Entry> getSampleDependencies() {
- return null;
- }
-
- public TrackMetaData getTrackMetaData() {
- return trackMetaData;
- }
-
- public String getHandler() {
- return "soun";
- }
-
- public Box getMediaHeaderBox() {
- return new SoundMediaHeaderBox();
- }
-
- public SubSampleInformationBox getSubsampleInformationBox() {
- return null;
- }
-
- private boolean readVariables() throws IOException {
- byte[] data = new byte[100];
- inputStream.mark(100);
- if (100 != inputStream.read(data, 0, 100)) {
- return false;
- }
- inputStream.reset(); // Rewind
- ByteBuffer bb = ByteBuffer.wrap(data);
- BitReaderBuffer brb = new BitReaderBuffer(bb);
- int syncword = brb.readBits(16);
- if (syncword != 0xb77) {
- return false;
- }
- brb.readBits(16); // CRC-1
- fscod = brb.readBits(2);
-
- switch (fscod) {
- case 0:
- samplerate = 48000;
- break;
-
- case 1:
- samplerate = 44100;
- break;
-
- case 2:
- samplerate = 32000;
- break;
-
- case 3:
- samplerate = 0;
- break;
-
- }
- if (samplerate == 0) {
- return false;
- }
-
- frmsizecod = brb.readBits(6);
-
- if (!calcBitrateAndFrameSize(frmsizecod)) {
- return false;
- }
-
- if (frameSize == 0) {
- return false;
- }
- bsid = brb.readBits(5);
- bsmod = brb.readBits(3);
- acmod = brb.readBits(3);
-
- if (bsid == 9) {
- samplerate /= 2;
- } else if (bsid != 8 && bsid != 6) {
- return false;
- }
-
- if ((acmod != 1) && ((acmod & 1) == 1)) {
- brb.readBits(2);
- }
-
- if (0 != (acmod & 4)) {
- brb.readBits(2);
- }
-
- if (acmod == 2) {
- brb.readBits(2);
- }
-
- switch (acmod) {
- case 0:
- channelCount = 2;
- break;
-
- case 1:
- channelCount = 1;
- break;
-
- case 2:
- channelCount = 2;
- break;
-
- case 3:
- channelCount = 3;
- break;
-
- case 4:
- channelCount = 3;
- break;
-
- case 5:
- channelCount = 4;
- break;
-
- case 6:
- channelCount = 4;
- break;
-
- case 7:
- channelCount = 5;
- break;
-
- }
-
- lfeon = brb.readBits(1);
-
- if (lfeon == 1) {
- channelCount++;
- }
- return true;
- }
-
- private boolean calcBitrateAndFrameSize(int code) {
- int frmsizecode = code >>> 1;
- int flag = code & 1;
- if (frmsizecode > 18 || flag > 1 || fscod > 2) {
- return false;
- }
- bitrate = bitRateAndFrameSizeTable[frmsizecode][flag][fscod][0];
- frameSize = 2 * bitRateAndFrameSizeTable[frmsizecode][flag][fscod][1];
- return true;
- }
-
- private boolean readSamples() throws IOException {
- if (readSamples) {
- return true;
- }
- readSamples = true;
- byte[] header = new byte[5];
- boolean ret = false;
- inputStream.mark(5);
- while (-1 != inputStream.read(header)) {
- ret = true;
- int frmsizecode = header[4] & 63;
- calcBitrateAndFrameSize(frmsizecode);
- inputStream.reset();
- byte[] data = new byte[frameSize];
- inputStream.read(data);
- samples.add(ByteBuffer.wrap(data));
- stts.add(new TimeToSampleBox.Entry(1, 1536));
- inputStream.mark(5);
- }
- return ret;
- }
-
- private void initBitRateAndFrameSizeTable() {
- // ETSI 102 366 Table 4.13, in frmsizecod, flag, fscod, bitrate/size order. Note that all sizes are in words, and all bitrates in kbps
-
- // 48kHz
- bitRateAndFrameSizeTable[0][0][0][0] = 32;
- bitRateAndFrameSizeTable[0][1][0][0] = 32;
- bitRateAndFrameSizeTable[0][0][0][1] = 64;
- bitRateAndFrameSizeTable[0][1][0][1] = 64;
- bitRateAndFrameSizeTable[1][0][0][0] = 40;
- bitRateAndFrameSizeTable[1][1][0][0] = 40;
- bitRateAndFrameSizeTable[1][0][0][1] = 80;
- bitRateAndFrameSizeTable[1][1][0][1] = 80;
- bitRateAndFrameSizeTable[2][0][0][0] = 48;
- bitRateAndFrameSizeTable[2][1][0][0] = 48;
- bitRateAndFrameSizeTable[2][0][0][1] = 96;
- bitRateAndFrameSizeTable[2][1][0][1] = 96;
- bitRateAndFrameSizeTable[3][0][0][0] = 56;
- bitRateAndFrameSizeTable[3][1][0][0] = 56;
- bitRateAndFrameSizeTable[3][0][0][1] = 112;
- bitRateAndFrameSizeTable[3][1][0][1] = 112;
- bitRateAndFrameSizeTable[4][0][0][0] = 64;
- bitRateAndFrameSizeTable[4][1][0][0] = 64;
- bitRateAndFrameSizeTable[4][0][0][1] = 128;
- bitRateAndFrameSizeTable[4][1][0][1] = 128;
- bitRateAndFrameSizeTable[5][0][0][0] = 80;
- bitRateAndFrameSizeTable[5][1][0][0] = 80;
- bitRateAndFrameSizeTable[5][0][0][1] = 160;
- bitRateAndFrameSizeTable[5][1][0][1] = 160;
- bitRateAndFrameSizeTable[6][0][0][0] = 96;
- bitRateAndFrameSizeTable[6][1][0][0] = 96;
- bitRateAndFrameSizeTable[6][0][0][1] = 192;
- bitRateAndFrameSizeTable[6][1][0][1] = 192;
- bitRateAndFrameSizeTable[7][0][0][0] = 112;
- bitRateAndFrameSizeTable[7][1][0][0] = 112;
- bitRateAndFrameSizeTable[7][0][0][1] = 224;
- bitRateAndFrameSizeTable[7][1][0][1] = 224;
- bitRateAndFrameSizeTable[8][0][0][0] = 128;
- bitRateAndFrameSizeTable[8][1][0][0] = 128;
- bitRateAndFrameSizeTable[8][0][0][1] = 256;
- bitRateAndFrameSizeTable[8][1][0][1] = 256;
- bitRateAndFrameSizeTable[9][0][0][0] = 160;
- bitRateAndFrameSizeTable[9][1][0][0] = 160;
- bitRateAndFrameSizeTable[9][0][0][1] = 320;
- bitRateAndFrameSizeTable[9][1][0][1] = 320;
- bitRateAndFrameSizeTable[10][0][0][0] = 192;
- bitRateAndFrameSizeTable[10][1][0][0] = 192;
- bitRateAndFrameSizeTable[10][0][0][1] = 384;
- bitRateAndFrameSizeTable[10][1][0][1] = 384;
- bitRateAndFrameSizeTable[11][0][0][0] = 224;
- bitRateAndFrameSizeTable[11][1][0][0] = 224;
- bitRateAndFrameSizeTable[11][0][0][1] = 448;
- bitRateAndFrameSizeTable[11][1][0][1] = 448;
- bitRateAndFrameSizeTable[12][0][0][0] = 256;
- bitRateAndFrameSizeTable[12][1][0][0] = 256;
- bitRateAndFrameSizeTable[12][0][0][1] = 512;
- bitRateAndFrameSizeTable[12][1][0][1] = 512;
- bitRateAndFrameSizeTable[13][0][0][0] = 320;
- bitRateAndFrameSizeTable[13][1][0][0] = 320;
- bitRateAndFrameSizeTable[13][0][0][1] = 640;
- bitRateAndFrameSizeTable[13][1][0][1] = 640;
- bitRateAndFrameSizeTable[14][0][0][0] = 384;
- bitRateAndFrameSizeTable[14][1][0][0] = 384;
- bitRateAndFrameSizeTable[14][0][0][1] = 768;
- bitRateAndFrameSizeTable[14][1][0][1] = 768;
- bitRateAndFrameSizeTable[15][0][0][0] = 448;
- bitRateAndFrameSizeTable[15][1][0][0] = 448;
- bitRateAndFrameSizeTable[15][0][0][1] = 896;
- bitRateAndFrameSizeTable[15][1][0][1] = 896;
- bitRateAndFrameSizeTable[16][0][0][0] = 512;
- bitRateAndFrameSizeTable[16][1][0][0] = 512;
- bitRateAndFrameSizeTable[16][0][0][1] = 1024;
- bitRateAndFrameSizeTable[16][1][0][1] = 1024;
- bitRateAndFrameSizeTable[17][0][0][0] = 576;
- bitRateAndFrameSizeTable[17][1][0][0] = 576;
- bitRateAndFrameSizeTable[17][0][0][1] = 1152;
- bitRateAndFrameSizeTable[17][1][0][1] = 1152;
- bitRateAndFrameSizeTable[18][0][0][0] = 640;
- bitRateAndFrameSizeTable[18][1][0][0] = 640;
- bitRateAndFrameSizeTable[18][0][0][1] = 1280;
- bitRateAndFrameSizeTable[18][1][0][1] = 1280;
-
- // 44.1 kHz
- bitRateAndFrameSizeTable[0][0][1][0] = 32;
- bitRateAndFrameSizeTable[0][1][1][0] = 32;
- bitRateAndFrameSizeTable[0][0][1][1] = 69;
- bitRateAndFrameSizeTable[0][1][1][1] = 70;
- bitRateAndFrameSizeTable[1][0][1][0] = 40;
- bitRateAndFrameSizeTable[1][1][1][0] = 40;
- bitRateAndFrameSizeTable[1][0][1][1] = 87;
- bitRateAndFrameSizeTable[1][1][1][1] = 88;
- bitRateAndFrameSizeTable[2][0][1][0] = 48;
- bitRateAndFrameSizeTable[2][1][1][0] = 48;
- bitRateAndFrameSizeTable[2][0][1][1] = 104;
- bitRateAndFrameSizeTable[2][1][1][1] = 105;
- bitRateAndFrameSizeTable[3][0][1][0] = 56;
- bitRateAndFrameSizeTable[3][1][1][0] = 56;
- bitRateAndFrameSizeTable[3][0][1][1] = 121;
- bitRateAndFrameSizeTable[3][1][1][1] = 122;
- bitRateAndFrameSizeTable[4][0][1][0] = 64;
- bitRateAndFrameSizeTable[4][1][1][0] = 64;
- bitRateAndFrameSizeTable[4][0][1][1] = 139;
- bitRateAndFrameSizeTable[4][1][1][1] = 140;
- bitRateAndFrameSizeTable[5][0][1][0] = 80;
- bitRateAndFrameSizeTable[5][1][1][0] = 80;
- bitRateAndFrameSizeTable[5][0][1][1] = 174;
- bitRateAndFrameSizeTable[5][1][1][1] = 175;
- bitRateAndFrameSizeTable[6][0][1][0] = 96;
- bitRateAndFrameSizeTable[6][1][1][0] = 96;
- bitRateAndFrameSizeTable[6][0][1][1] = 208;
- bitRateAndFrameSizeTable[6][1][1][1] = 209;
- bitRateAndFrameSizeTable[7][0][1][0] = 112;
- bitRateAndFrameSizeTable[7][1][1][0] = 112;
- bitRateAndFrameSizeTable[7][0][1][1] = 243;
- bitRateAndFrameSizeTable[7][1][1][1] = 244;
- bitRateAndFrameSizeTable[8][0][1][0] = 128;
- bitRateAndFrameSizeTable[8][1][1][0] = 128;
- bitRateAndFrameSizeTable[8][0][1][1] = 278;
- bitRateAndFrameSizeTable[8][1][1][1] = 279;
- bitRateAndFrameSizeTable[9][0][1][0] = 160;
- bitRateAndFrameSizeTable[9][1][1][0] = 160;
- bitRateAndFrameSizeTable[9][0][1][1] = 348;
- bitRateAndFrameSizeTable[9][1][1][1] = 349;
- bitRateAndFrameSizeTable[10][0][1][0] = 192;
- bitRateAndFrameSizeTable[10][1][1][0] = 192;
- bitRateAndFrameSizeTable[10][0][1][1] = 417;
- bitRateAndFrameSizeTable[10][1][1][1] = 418;
- bitRateAndFrameSizeTable[11][0][1][0] = 224;
- bitRateAndFrameSizeTable[11][1][1][0] = 224;
- bitRateAndFrameSizeTable[11][0][1][1] = 487;
- bitRateAndFrameSizeTable[11][1][1][1] = 488;
- bitRateAndFrameSizeTable[12][0][1][0] = 256;
- bitRateAndFrameSizeTable[12][1][1][0] = 256;
- bitRateAndFrameSizeTable[12][0][1][1] = 557;
- bitRateAndFrameSizeTable[12][1][1][1] = 558;
- bitRateAndFrameSizeTable[13][0][1][0] = 320;
- bitRateAndFrameSizeTable[13][1][1][0] = 320;
- bitRateAndFrameSizeTable[13][0][1][1] = 696;
- bitRateAndFrameSizeTable[13][1][1][1] = 697;
- bitRateAndFrameSizeTable[14][0][1][0] = 384;
- bitRateAndFrameSizeTable[14][1][1][0] = 384;
- bitRateAndFrameSizeTable[14][0][1][1] = 835;
- bitRateAndFrameSizeTable[14][1][1][1] = 836;
- bitRateAndFrameSizeTable[15][0][1][0] = 448;
- bitRateAndFrameSizeTable[15][1][1][0] = 448;
- bitRateAndFrameSizeTable[15][0][1][1] = 975;
- bitRateAndFrameSizeTable[15][1][1][1] = 975;
- bitRateAndFrameSizeTable[16][0][1][0] = 512;
- bitRateAndFrameSizeTable[16][1][1][0] = 512;
- bitRateAndFrameSizeTable[16][0][1][1] = 1114;
- bitRateAndFrameSizeTable[16][1][1][1] = 1115;
- bitRateAndFrameSizeTable[17][0][1][0] = 576;
- bitRateAndFrameSizeTable[17][1][1][0] = 576;
- bitRateAndFrameSizeTable[17][0][1][1] = 1253;
- bitRateAndFrameSizeTable[17][1][1][1] = 1254;
- bitRateAndFrameSizeTable[18][0][1][0] = 640;
- bitRateAndFrameSizeTable[18][1][1][0] = 640;
- bitRateAndFrameSizeTable[18][0][1][1] = 1393;
- bitRateAndFrameSizeTable[18][1][1][1] = 1394;
-
- // 32kHz
- bitRateAndFrameSizeTable[0][0][2][0] = 32;
- bitRateAndFrameSizeTable[0][1][2][0] = 32;
- bitRateAndFrameSizeTable[0][0][2][1] = 96;
- bitRateAndFrameSizeTable[0][1][2][1] = 96;
- bitRateAndFrameSizeTable[1][0][2][0] = 40;
- bitRateAndFrameSizeTable[1][1][2][0] = 40;
- bitRateAndFrameSizeTable[1][0][2][1] = 120;
- bitRateAndFrameSizeTable[1][1][2][1] = 120;
- bitRateAndFrameSizeTable[2][0][2][0] = 48;
- bitRateAndFrameSizeTable[2][1][2][0] = 48;
- bitRateAndFrameSizeTable[2][0][2][1] = 144;
- bitRateAndFrameSizeTable[2][1][2][1] = 144;
- bitRateAndFrameSizeTable[3][0][2][0] = 56;
- bitRateAndFrameSizeTable[3][1][2][0] = 56;
- bitRateAndFrameSizeTable[3][0][2][1] = 168;
- bitRateAndFrameSizeTable[3][1][2][1] = 168;
- bitRateAndFrameSizeTable[4][0][2][0] = 64;
- bitRateAndFrameSizeTable[4][1][2][0] = 64;
- bitRateAndFrameSizeTable[4][0][2][1] = 192;
- bitRateAndFrameSizeTable[4][1][2][1] = 192;
- bitRateAndFrameSizeTable[5][0][2][0] = 80;
- bitRateAndFrameSizeTable[5][1][2][0] = 80;
- bitRateAndFrameSizeTable[5][0][2][1] = 240;
- bitRateAndFrameSizeTable[5][1][2][1] = 240;
- bitRateAndFrameSizeTable[6][0][2][0] = 96;
- bitRateAndFrameSizeTable[6][1][2][0] = 96;
- bitRateAndFrameSizeTable[6][0][2][1] = 288;
- bitRateAndFrameSizeTable[6][1][2][1] = 288;
- bitRateAndFrameSizeTable[7][0][2][0] = 112;
- bitRateAndFrameSizeTable[7][1][2][0] = 112;
- bitRateAndFrameSizeTable[7][0][2][1] = 336;
- bitRateAndFrameSizeTable[7][1][2][1] = 336;
- bitRateAndFrameSizeTable[8][0][2][0] = 128;
- bitRateAndFrameSizeTable[8][1][2][0] = 128;
- bitRateAndFrameSizeTable[8][0][2][1] = 384;
- bitRateAndFrameSizeTable[8][1][2][1] = 384;
- bitRateAndFrameSizeTable[9][0][2][0] = 160;
- bitRateAndFrameSizeTable[9][1][2][0] = 160;
- bitRateAndFrameSizeTable[9][0][2][1] = 480;
- bitRateAndFrameSizeTable[9][1][2][1] = 480;
- bitRateAndFrameSizeTable[10][0][2][0] = 192;
- bitRateAndFrameSizeTable[10][1][2][0] = 192;
- bitRateAndFrameSizeTable[10][0][2][1] = 576;
- bitRateAndFrameSizeTable[10][1][2][1] = 576;
- bitRateAndFrameSizeTable[11][0][2][0] = 224;
- bitRateAndFrameSizeTable[11][1][2][0] = 224;
- bitRateAndFrameSizeTable[11][0][2][1] = 672;
- bitRateAndFrameSizeTable[11][1][2][1] = 672;
- bitRateAndFrameSizeTable[12][0][2][0] = 256;
- bitRateAndFrameSizeTable[12][1][2][0] = 256;
- bitRateAndFrameSizeTable[12][0][2][1] = 768;
- bitRateAndFrameSizeTable[12][1][2][1] = 768;
- bitRateAndFrameSizeTable[13][0][2][0] = 320;
- bitRateAndFrameSizeTable[13][1][2][0] = 320;
- bitRateAndFrameSizeTable[13][0][2][1] = 960;
- bitRateAndFrameSizeTable[13][1][2][1] = 960;
- bitRateAndFrameSizeTable[14][0][2][0] = 384;
- bitRateAndFrameSizeTable[14][1][2][0] = 384;
- bitRateAndFrameSizeTable[14][0][2][1] = 1152;
- bitRateAndFrameSizeTable[14][1][2][1] = 1152;
- bitRateAndFrameSizeTable[15][0][2][0] = 448;
- bitRateAndFrameSizeTable[15][1][2][0] = 448;
- bitRateAndFrameSizeTable[15][0][2][1] = 1344;
- bitRateAndFrameSizeTable[15][1][2][1] = 1344;
- bitRateAndFrameSizeTable[16][0][2][0] = 512;
- bitRateAndFrameSizeTable[16][1][2][0] = 512;
- bitRateAndFrameSizeTable[16][0][2][1] = 1536;
- bitRateAndFrameSizeTable[16][1][2][1] = 1536;
- bitRateAndFrameSizeTable[17][0][2][0] = 576;
- bitRateAndFrameSizeTable[17][1][2][0] = 576;
- bitRateAndFrameSizeTable[17][0][2][1] = 1728;
- bitRateAndFrameSizeTable[17][1][2][1] = 1728;
- bitRateAndFrameSizeTable[18][0][2][0] = 640;
- bitRateAndFrameSizeTable[18][1][2][0] = 640;
- bitRateAndFrameSizeTable[18][0][2][1] = 1920;
- bitRateAndFrameSizeTable[18][1][2][1] = 1920;
- }
-} \ No newline at end of file
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-22 01:24:17 +0000