MP3TrackImpl.smali

.class public Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl;
.super Lcom/googlecode/mp4parser/authoring/AbstractTrack;
.source "MP3TrackImpl.java"


# annotations
.annotation system Ldalvik/annotation/MemberClasses;
    value = {
        Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl$MP3Header;
    }
.end annotation


# static fields
.field private static final BIT_RATE:[I

.field private static final ES_OBJECT_TYPE_INDICATION:I = 0x6b

.field private static final ES_STREAM_TYPE:I = 0x5

.field private static final MPEG_L3:I = 0x1

.field private static final MPEG_V1:I = 0x3

.field private static final SAMPLES_PER_FRAME:I = 0x480

.field private static final SAMPLE_RATE:[I


# instance fields
.field avgBitRate:J

.field private final dataSource:Lcom/googlecode/mp4parser/DataSource;

.field private durations:[J

.field firstHeader:Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl$MP3Header;

.field maxBitRate:J

.field sampleDescriptionBox:Lcom/coremedia/iso/boxes/SampleDescriptionBox;

.field private samples:Ljava/util/List;
    .annotation system Ldalvik/annotation/Signature;
        value = {
            "Ljava/util/List<",
            "Lcom/googlecode/mp4parser/authoring/Sample;",
            ">;"
        }
    .end annotation
.end field

.field trackMetaData:Lcom/googlecode/mp4parser/authoring/TrackMetaData;


# direct methods
.method static constructor <clinit>()V
    .registers 6

    .line 33
    const/4 v0, 0x4

    new-array v1, v0, [I

    const/4 v2, 0x0

    const v3, 0xac44

    aput v3, v1, v2

    const v2, 0xbb80

    const/4 v3, 0x1

    aput v2, v1, v3

    const/16 v4, 0x7d00

    const/4 v5, 0x2

    aput v4, v1, v5

    sput-object v1, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl;->SAMPLE_RATE:[I

    .line 34
    const/16 v1, 0x10

    new-array v1, v1, [I

    aput v4, v1, v3

    const v3, 0x9c40

    aput v3, v1, v5

    const/4 v3, 0x3

    aput v2, v1, v3

    const v2, 0xdac0

    aput v2, v1, v0

    const/4 v0, 0x5

    const v2, 0xfa00

    aput v2, v1, v0

    const/4 v0, 0x6

    const v2, 0x13880

    aput v2, v1, v0

    const/4 v0, 0x7

    const v2, 0x17700

    aput v2, v1, v0

    const/16 v0, 0x8

    const v2, 0x1b580

    aput v2, v1, v0

    const/16 v0, 0x9

    const v2, 0x1f400

    aput v2, v1, v0

    const/16 v0, 0xa

    const v2, 0x27100

    aput v2, v1, v0

    const/16 v0, 0xb

    const v2, 0x2ee00

    aput v2, v1, v0

    const/16 v0, 0xc

    const v2, 0x36b00

    aput v2, v1, v0

    const/16 v0, 0xd

    const v2, 0x3e800

    aput v2, v1, v0

    const/16 v0, 0xe

    const v2, 0x4e200

    aput v2, v1, v0

    sput-object v1, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl;->BIT_RATE:[I

    .line 38
    return-void
.end method

.method public constructor <init>(Lcom/googlecode/mp4parser/DataSource;)V
    .registers 3
    .param p1, "channel"    # Lcom/googlecode/mp4parser/DataSource;
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/io/IOException;
        }
    .end annotation

    .line 53
    const-string v0, "eng"

    invoke-direct {p0, p1, v0}, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl;-><init>(Lcom/googlecode/mp4parser/DataSource;Ljava/lang/String;)V

    .line 54
    return-void
.end method

.method public constructor <init>(Lcom/googlecode/mp4parser/DataSource;Ljava/lang/String;)V
    .registers 21
    .param p1, "dataSource"    # Lcom/googlecode/mp4parser/DataSource;
    .param p2, "lang"    # Ljava/lang/String;
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/io/IOException;
        }
    .end annotation

    .line 61
    move-object/from16 v0, p0

    invoke-virtual/range {p1 .. p1}, Ljava/lang/Object;->toString()Ljava/lang/String;

    move-result-object v1

    invoke-direct {v0, v1}, Lcom/googlecode/mp4parser/authoring/AbstractTrack;-><init>(Ljava/lang/String;)V

    .line 41
    new-instance v1, Lcom/googlecode/mp4parser/authoring/TrackMetaData;

    invoke-direct {v1}, Lcom/googlecode/mp4parser/authoring/TrackMetaData;-><init>()V

    iput-object v1, v0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl;->trackMetaData:Lcom/googlecode/mp4parser/authoring/TrackMetaData;

    .line 62
    move-object/from16 v1, p1

    iput-object v1, v0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl;->dataSource:Lcom/googlecode/mp4parser/DataSource;

    .line 63
    new-instance v2, Ljava/util/LinkedList;

    invoke-direct {v2}, Ljava/util/LinkedList;-><init>()V

    iput-object v2, v0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl;->samples:Ljava/util/List;

    .line 64
    invoke-direct/range {p0 .. p1}, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl;->readSamples(Lcom/googlecode/mp4parser/DataSource;)Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl$MP3Header;

    move-result-object v2

    iput-object v2, v0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl;->firstHeader:Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl$MP3Header;

    .line 66
    iget v2, v2, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl$MP3Header;->sampleRate:I

    int-to-double v2, v2

    const-wide/high16 v4, 0x4092000000000000L    # 1152.0

    invoke-static {v2, v3}, Ljava/lang/Double;->isNaN(D)Z

    div-double/2addr v2, v4

    .line 67
    .local v2, "packetsPerSecond":D
    iget-object v4, v0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl;->samples:Ljava/util/List;

    invoke-interface {v4}, Ljava/util/List;->size()I

    move-result v4

    int-to-double v4, v4

    invoke-static {v4, v5}, Ljava/lang/Double;->isNaN(D)Z

    div-double/2addr v4, v2

    .line 69
    .local v4, "duration":D
    const-wide/16 v6, 0x0

    .line 70
    .local v6, "dataSize":J
    new-instance v8, Ljava/util/LinkedList;

    invoke-direct {v8}, Ljava/util/LinkedList;-><init>()V

    .line 71
    .local v8, "queue":Ljava/util/LinkedList;, "Ljava/util/LinkedList<Ljava/lang/Integer;>;"
    iget-object v9, v0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl;->samples:Ljava/util/List;

    invoke-interface {v9}, Ljava/util/List;->iterator()Ljava/util/Iterator;

    move-result-object v9

    :goto_42
    invoke-interface {v9}, Ljava/util/Iterator;->hasNext()Z

    move-result v10

    if-nez v10, :cond_fd

    .line 90
    const-wide/16 v9, 0x8

    mul-long v9, v9, v6

    long-to-double v9, v9

    invoke-static {v9, v10}, Ljava/lang/Double;->isNaN(D)Z

    div-double/2addr v9, v4

    double-to-int v9, v9

    int-to-long v9, v9

    iput-wide v9, v0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl;->avgBitRate:J

    .line 92
    new-instance v9, Lcom/coremedia/iso/boxes/SampleDescriptionBox;

    invoke-direct {v9}, Lcom/coremedia/iso/boxes/SampleDescriptionBox;-><init>()V

    iput-object v9, v0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl;->sampleDescriptionBox:Lcom/coremedia/iso/boxes/SampleDescriptionBox;

    .line 93
    new-instance v9, Lcom/coremedia/iso/boxes/sampleentry/AudioSampleEntry;

    const-string v10, "mp4a"

    invoke-direct {v9, v10}, Lcom/coremedia/iso/boxes/sampleentry/AudioSampleEntry;-><init>(Ljava/lang/String;)V

    .line 94
    .local v9, "audioSampleEntry":Lcom/coremedia/iso/boxes/sampleentry/AudioSampleEntry;
    iget-object v10, v0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl;->firstHeader:Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl$MP3Header;

    iget v10, v10, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl$MP3Header;->channelCount:I

    invoke-virtual {v9, v10}, Lcom/coremedia/iso/boxes/sampleentry/AudioSampleEntry;->setChannelCount(I)V

    .line 95
    iget-object v10, v0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl;->firstHeader:Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl$MP3Header;

    iget v10, v10, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl$MP3Header;->sampleRate:I

    int-to-long v10, v10

    invoke-virtual {v9, v10, v11}, Lcom/coremedia/iso/boxes/sampleentry/AudioSampleEntry;->setSampleRate(J)V

    .line 96
    const/4 v10, 0x1

    invoke-virtual {v9, v10}, Lcom/coremedia/iso/boxes/sampleentry/AudioSampleEntry;->setDataReferenceIndex(I)V

    .line 97
    const/16 v10, 0x10

    invoke-virtual {v9, v10}, Lcom/coremedia/iso/boxes/sampleentry/AudioSampleEntry;->setSampleSize(I)V

    .line 100
    new-instance v10, Lcom/googlecode/mp4parser/boxes/mp4/ESDescriptorBox;

    invoke-direct {v10}, Lcom/googlecode/mp4parser/boxes/mp4/ESDescriptorBox;-><init>()V

    .line 101
    .local v10, "esds":Lcom/googlecode/mp4parser/boxes/mp4/ESDescriptorBox;
    new-instance v11, Lcom/googlecode/mp4parser/boxes/mp4/objectdescriptors/ESDescriptor;

    invoke-direct {v11}, Lcom/googlecode/mp4parser/boxes/mp4/objectdescriptors/ESDescriptor;-><init>()V

    .line 102
    .local v11, "descriptor":Lcom/googlecode/mp4parser/boxes/mp4/objectdescriptors/ESDescriptor;
    const/4 v12, 0x0

    invoke-virtual {v11, v12}, Lcom/googlecode/mp4parser/boxes/mp4/objectdescriptors/ESDescriptor;->setEsId(I)V

    .line 104
    new-instance v12, Lcom/googlecode/mp4parser/boxes/mp4/objectdescriptors/SLConfigDescriptor;

    invoke-direct {v12}, Lcom/googlecode/mp4parser/boxes/mp4/objectdescriptors/SLConfigDescriptor;-><init>()V

    .line 105
    .local v12, "slConfigDescriptor":Lcom/googlecode/mp4parser/boxes/mp4/objectdescriptors/SLConfigDescriptor;
    const/4 v13, 0x2

    invoke-virtual {v12, v13}, Lcom/googlecode/mp4parser/boxes/mp4/objectdescriptors/SLConfigDescriptor;->setPredefined(I)V

    .line 106
    invoke-virtual {v11, v12}, Lcom/googlecode/mp4parser/boxes/mp4/objectdescriptors/ESDescriptor;->setSlConfigDescriptor(Lcom/googlecode/mp4parser/boxes/mp4/objectdescriptors/SLConfigDescriptor;)V

    .line 108
    new-instance v13, Lcom/googlecode/mp4parser/boxes/mp4/objectdescriptors/DecoderConfigDescriptor;

    invoke-direct {v13}, Lcom/googlecode/mp4parser/boxes/mp4/objectdescriptors/DecoderConfigDescriptor;-><init>()V

    .line 109
    .local v13, "decoderConfigDescriptor":Lcom/googlecode/mp4parser/boxes/mp4/objectdescriptors/DecoderConfigDescriptor;
    const/16 v14, 0x6b

    invoke-virtual {v13, v14}, Lcom/googlecode/mp4parser/boxes/mp4/objectdescriptors/DecoderConfigDescriptor;->setObjectTypeIndication(I)V

    .line 110
    const/4 v14, 0x5

    invoke-virtual {v13, v14}, Lcom/googlecode/mp4parser/boxes/mp4/objectdescriptors/DecoderConfigDescriptor;->setStreamType(I)V

    .line 111
    iget-wide v14, v0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl;->maxBitRate:J

    invoke-virtual {v13, v14, v15}, Lcom/googlecode/mp4parser/boxes/mp4/objectdescriptors/DecoderConfigDescriptor;->setMaxBitRate(J)V

    .line 112
    iget-wide v14, v0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl;->avgBitRate:J

    invoke-virtual {v13, v14, v15}, Lcom/googlecode/mp4parser/boxes/mp4/objectdescriptors/DecoderConfigDescriptor;->setAvgBitRate(J)V

    .line 113
    invoke-virtual {v11, v13}, Lcom/googlecode/mp4parser/boxes/mp4/objectdescriptors/ESDescriptor;->setDecoderConfigDescriptor(Lcom/googlecode/mp4parser/boxes/mp4/objectdescriptors/DecoderConfigDescriptor;)V

    .line 115
    invoke-virtual {v11}, Lcom/googlecode/mp4parser/boxes/mp4/objectdescriptors/ESDescriptor;->serialize()Ljava/nio/ByteBuffer;

    move-result-object v14

    .line 116
    .local v14, "data":Ljava/nio/ByteBuffer;
    invoke-virtual {v10, v14}, Lcom/googlecode/mp4parser/boxes/mp4/ESDescriptorBox;->setData(Ljava/nio/ByteBuffer;)V

    .line 117
    invoke-virtual {v9, v10}, Lcom/coremedia/iso/boxes/sampleentry/AudioSampleEntry;->addBox(Lcom/coremedia/iso/boxes/Box;)V

    .line 118
    iget-object v15, v0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl;->sampleDescriptionBox:Lcom/coremedia/iso/boxes/SampleDescriptionBox;

    invoke-virtual {v15, v9}, Lcom/coremedia/iso/boxes/SampleDescriptionBox;->addBox(Lcom/coremedia/iso/boxes/Box;)V

    .line 120
    iget-object v15, v0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl;->trackMetaData:Lcom/googlecode/mp4parser/authoring/TrackMetaData;

    new-instance v1, Ljava/util/Date;

    invoke-direct {v1}, Ljava/util/Date;-><init>()V

    invoke-virtual {v15, v1}, Lcom/googlecode/mp4parser/authoring/TrackMetaData;->setCreationTime(Ljava/util/Date;)V

    .line 121
    iget-object v1, v0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl;->trackMetaData:Lcom/googlecode/mp4parser/authoring/TrackMetaData;

    new-instance v15, Ljava/util/Date;

    invoke-direct {v15}, Ljava/util/Date;-><init>()V

    invoke-virtual {v1, v15}, Lcom/googlecode/mp4parser/authoring/TrackMetaData;->setModificationTime(Ljava/util/Date;)V

    .line 122
    iget-object v1, v0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl;->trackMetaData:Lcom/googlecode/mp4parser/authoring/TrackMetaData;

    move-object/from16 v15, p2

    invoke-virtual {v1, v15}, Lcom/googlecode/mp4parser/authoring/TrackMetaData;->setLanguage(Ljava/lang/String;)V

    .line 123
    iget-object v1, v0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl;->trackMetaData:Lcom/googlecode/mp4parser/authoring/TrackMetaData;

    move-wide/from16 v16, v4

    .end local v4    # "duration":D
    .local v16, "duration":D
    const/high16 v4, 0x3f800000    # 1.0f

    invoke-virtual {v1, v4}, Lcom/googlecode/mp4parser/authoring/TrackMetaData;->setVolume(F)V

    .line 124
    iget-object v1, v0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl;->trackMetaData:Lcom/googlecode/mp4parser/authoring/TrackMetaData;

    iget-object v4, v0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl;->firstHeader:Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl$MP3Header;

    iget v4, v4, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl$MP3Header;->sampleRate:I

    int-to-long v4, v4

    invoke-virtual {v1, v4, v5}, Lcom/googlecode/mp4parser/authoring/TrackMetaData;->setTimescale(J)V

    .line 125
    iget-object v1, v0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl;->samples:Ljava/util/List;

    invoke-interface {v1}, Ljava/util/List;->size()I

    move-result v1

    new-array v1, v1, [J

    iput-object v1, v0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl;->durations:[J

    .line 126
    const-wide/16 v4, 0x480

    invoke-static {v1, v4, v5}, Ljava/util/Arrays;->fill([JJ)V

    .line 127
    return-void

    .line 71
    .end local v9    # "audioSampleEntry":Lcom/coremedia/iso/boxes/sampleentry/AudioSampleEntry;
    .end local v10    # "esds":Lcom/googlecode/mp4parser/boxes/mp4/ESDescriptorBox;
    .end local v11    # "descriptor":Lcom/googlecode/mp4parser/boxes/mp4/objectdescriptors/ESDescriptor;
    .end local v12    # "slConfigDescriptor":Lcom/googlecode/mp4parser/boxes/mp4/objectdescriptors/SLConfigDescriptor;
    .end local v13    # "decoderConfigDescriptor":Lcom/googlecode/mp4parser/boxes/mp4/objectdescriptors/DecoderConfigDescriptor;
    .end local v14    # "data":Ljava/nio/ByteBuffer;
    .end local v16    # "duration":D
    .restart local v4    # "duration":D
    :cond_fd
    move-object/from16 v15, p2

    move-wide/from16 v16, v4

    .end local v4    # "duration":D
    .restart local v16    # "duration":D
    invoke-interface {v9}, Ljava/util/Iterator;->next()Ljava/lang/Object;

    move-result-object v1

    check-cast v1, Lcom/googlecode/mp4parser/authoring/Sample;

    .line 72
    .local v1, "sample":Lcom/googlecode/mp4parser/authoring/Sample;
    invoke-interface {v1}, Lcom/googlecode/mp4parser/authoring/Sample;->getSize()J

    move-result-wide v4

    long-to-int v5, v4

    .line 73
    .local v5, "size":I
    int-to-long v10, v5

    add-long/2addr v6, v10

    .line 74
    invoke-static {v5}, Ljava/lang/Integer;->valueOf(I)Ljava/lang/Integer;

    move-result-object v4

    invoke-virtual {v8, v4}, Ljava/util/LinkedList;->add(Ljava/lang/Object;)Z

    .line 75
    nop

    :goto_116
    invoke-virtual {v8}, Ljava/util/LinkedList;->size()I

    move-result v4

    int-to-double v10, v4

    cmpl-double v4, v10, v2

    if-gtz v4, :cond_162

    .line 78
    invoke-virtual {v8}, Ljava/util/LinkedList;->size()I

    move-result v4

    double-to-int v10, v2

    if-ne v4, v10, :cond_15c

    .line 79
    const/4 v4, 0x0

    .line 80
    .local v4, "currSize":I
    invoke-virtual {v8}, Ljava/util/LinkedList;->iterator()Ljava/util/Iterator;

    move-result-object v10

    :goto_12b
    invoke-interface {v10}, Ljava/util/Iterator;->hasNext()Z

    move-result v11

    if-nez v11, :cond_150

    .line 83
    const-wide/high16 v10, 0x4020000000000000L    # 8.0

    int-to-double v12, v4

    invoke-static {v12, v13}, Ljava/lang/Double;->isNaN(D)Z

    mul-double v12, v12, v10

    invoke-virtual {v8}, Ljava/util/LinkedList;->size()I

    move-result v10

    int-to-double v10, v10

    invoke-static {v10, v11}, Ljava/lang/Double;->isNaN(D)Z

    div-double/2addr v12, v10

    mul-double v12, v12, v2

    .line 84
    .local v12, "currBitRate":D
    iget-wide v10, v0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl;->maxBitRate:J

    long-to-double v10, v10

    cmpl-double v14, v12, v10

    if-lez v14, :cond_15c

    .line 85
    double-to-int v10, v12

    int-to-long v10, v10

    iput-wide v10, v0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl;->maxBitRate:J

    goto :goto_15c

    .line 80
    .end local v12    # "currBitRate":D
    :cond_150
    invoke-interface {v10}, Ljava/util/Iterator;->next()Ljava/lang/Object;

    move-result-object v11

    check-cast v11, Ljava/lang/Integer;

    .line 81
    .local v11, "aQueue":Ljava/lang/Integer;
    invoke-virtual {v11}, Ljava/lang/Integer;->intValue()I

    move-result v12

    add-int/2addr v4, v12

    goto :goto_12b

    .line 71
    .end local v1    # "sample":Lcom/googlecode/mp4parser/authoring/Sample;
    .end local v4    # "currSize":I
    .end local v5    # "size":I
    .end local v11    # "aQueue":Ljava/lang/Integer;
    :cond_15c
    :goto_15c
    move-object/from16 v1, p1

    move-wide/from16 v4, v16

    goto/16 :goto_42

    .line 76
    .restart local v1    # "sample":Lcom/googlecode/mp4parser/authoring/Sample;
    .restart local v5    # "size":I
    :cond_162
    invoke-virtual {v8}, Ljava/util/LinkedList;->pop()Ljava/lang/Object;

    goto :goto_116
.end method

.method private readMP3Header(Lcom/googlecode/mp4parser/DataSource;)Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl$MP3Header;
    .registers 11
    .param p1, "channel"    # Lcom/googlecode/mp4parser/DataSource;
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/io/IOException;
        }
    .end annotation

    .line 189
    new-instance v0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl$MP3Header;

    invoke-direct {v0, p0}, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl$MP3Header;-><init>(Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl;)V

    .line 190
    .local v0, "hdr":Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl$MP3Header;
    const/4 v1, 0x4

    invoke-static {v1}, Ljava/nio/ByteBuffer;->allocate(I)Ljava/nio/ByteBuffer;

    move-result-object v2

    .line 191
    .local v2, "bb":Ljava/nio/ByteBuffer;
    nop

    :goto_b
    invoke-virtual {v2}, Ljava/nio/ByteBuffer;->position()I

    move-result v3

    if-lt v3, v1, :cond_a6

    .line 197
    new-instance v3, Lcom/googlecode/mp4parser/boxes/mp4/objectdescriptors/BitReaderBuffer;

    invoke-virtual {v2}, Ljava/nio/ByteBuffer;->rewind()Ljava/nio/Buffer;

    move-result-object v4

    check-cast v4, Ljava/nio/ByteBuffer;

    invoke-direct {v3, v4}, Lcom/googlecode/mp4parser/boxes/mp4/objectdescriptors/BitReaderBuffer;-><init>(Ljava/nio/ByteBuffer;)V

    .line 198
    .local v3, "brb":Lcom/googlecode/mp4parser/boxes/mp4/objectdescriptors/BitReaderBuffer;
    const/16 v4, 0xb

    invoke-virtual {v3, v4}, Lcom/googlecode/mp4parser/boxes/mp4/objectdescriptors/BitReaderBuffer;->readBits(I)I

    move-result v4

    .line 199
    .local v4, "sync":I
    const/16 v5, 0x7ff

    if-ne v4, v5, :cond_9e

    .line 201
    const/4 v5, 0x2

    invoke-virtual {v3, v5}, Lcom/googlecode/mp4parser/boxes/mp4/objectdescriptors/BitReaderBuffer;->readBits(I)I

    move-result v6

    iput v6, v0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl$MP3Header;->mpegVersion:I

    .line 203
    iget v6, v0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl$MP3Header;->mpegVersion:I

    const/4 v7, 0x3

    if-ne v6, v7, :cond_96

    .line 206
    invoke-virtual {v3, v5}, Lcom/googlecode/mp4parser/boxes/mp4/objectdescriptors/BitReaderBuffer;->readBits(I)I

    move-result v6

    iput v6, v0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl$MP3Header;->layer:I

    .line 208
    iget v6, v0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl$MP3Header;->layer:I

    const/4 v8, 0x1

    if-ne v6, v8, :cond_8e

    .line 211
    invoke-virtual {v3, v8}, Lcom/googlecode/mp4parser/boxes/mp4/objectdescriptors/BitReaderBuffer;->readBits(I)I

    move-result v6

    iput v6, v0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl$MP3Header;->protectionAbsent:I

    .line 213
    invoke-virtual {v3, v1}, Lcom/googlecode/mp4parser/boxes/mp4/objectdescriptors/BitReaderBuffer;->readBits(I)I

    move-result v1

    iput v1, v0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl$MP3Header;->bitRateIndex:I

    .line 214
    sget-object v1, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl;->BIT_RATE:[I

    iget v6, v0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl$MP3Header;->bitRateIndex:I

    aget v1, v1, v6

    iput v1, v0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl$MP3Header;->bitRate:I

    .line 215
    iget v1, v0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl$MP3Header;->bitRate:I

    if-eqz v1, :cond_86

    .line 218
    invoke-virtual {v3, v5}, Lcom/googlecode/mp4parser/boxes/mp4/objectdescriptors/BitReaderBuffer;->readBits(I)I

    move-result v1

    iput v1, v0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl$MP3Header;->sampleFrequencyIndex:I

    .line 219
    sget-object v1, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl;->SAMPLE_RATE:[I

    iget v6, v0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl$MP3Header;->sampleFrequencyIndex:I

    aget v1, v1, v6

    iput v1, v0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl$MP3Header;->sampleRate:I

    .line 220
    iget v1, v0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl$MP3Header;->sampleRate:I

    if-eqz v1, :cond_7e

    .line 223
    invoke-virtual {v3, v8}, Lcom/googlecode/mp4parser/boxes/mp4/objectdescriptors/BitReaderBuffer;->readBits(I)I

    move-result v1

    iput v1, v0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl$MP3Header;->padding:I

    .line 224
    invoke-virtual {v3, v8}, Lcom/googlecode/mp4parser/boxes/mp4/objectdescriptors/BitReaderBuffer;->readBits(I)I

    .line 226
    invoke-virtual {v3, v5}, Lcom/googlecode/mp4parser/boxes/mp4/objectdescriptors/BitReaderBuffer;->readBits(I)I

    move-result v1

    iput v1, v0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl$MP3Header;->channelMode:I

    .line 227
    iget v1, v0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl$MP3Header;->channelMode:I

    if-ne v1, v7, :cond_7b

    const/4 v5, 0x1

    :cond_7b
    iput v5, v0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl$MP3Header;->channelCount:I

    .line 228
    return-object v0

    .line 221
    :cond_7e
    new-instance v1, Ljava/io/IOException;

    const-string v5, "Unexpected (reserved) sample rate frequency"

    invoke-direct {v1, v5}, Ljava/io/IOException;-><init>(Ljava/lang/String;)V

    throw v1

    .line 216
    :cond_86
    new-instance v1, Ljava/io/IOException;

    const-string v5, "Unexpected (free/bad) bit rate"

    invoke-direct {v1, v5}, Ljava/io/IOException;-><init>(Ljava/lang/String;)V

    throw v1

    .line 209
    :cond_8e
    new-instance v1, Ljava/io/IOException;

    const-string v5, "Expected Layer III"

    invoke-direct {v1, v5}, Ljava/io/IOException;-><init>(Ljava/lang/String;)V

    throw v1

    .line 204
    :cond_96
    new-instance v1, Ljava/io/IOException;

    const-string v5, "Expected MPEG Version 1 (ISO/IEC 11172-3)"

    invoke-direct {v1, v5}, Ljava/io/IOException;-><init>(Ljava/lang/String;)V

    throw v1

    .line 200
    :cond_9e
    new-instance v1, Ljava/io/IOException;

    const-string v5, "Expected Start Word 0x7ff"

    invoke-direct {v1, v5}, Ljava/io/IOException;-><init>(Ljava/lang/String;)V

    throw v1

    .line 192
    .end local v3    # "brb":Lcom/googlecode/mp4parser/boxes/mp4/objectdescriptors/BitReaderBuffer;
    .end local v4    # "sync":I
    :cond_a6
    invoke-interface {p1, v2}, Lcom/googlecode/mp4parser/DataSource;->read(Ljava/nio/ByteBuffer;)I

    move-result v3

    const/4 v4, -0x1

    if-ne v3, v4, :cond_af

    .line 193
    const/4 v1, 0x0

    return-object v1

    .line 192
    :cond_af
    goto/16 :goto_b
.end method

.method private readSamples(Lcom/googlecode/mp4parser/DataSource;)Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl$MP3Header;
    .registers 9
    .param p1, "channel"    # Lcom/googlecode/mp4parser/DataSource;
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/io/IOException;
        }
    .end annotation

    .line 171
    const/4 v0, 0x0

    .line 173
    .local v0, "first":Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl$MP3Header;
    :goto_1
    invoke-interface {p1}, Lcom/googlecode/mp4parser/DataSource;->position()J

    move-result-wide v1

    .line 175
    .local v1, "pos":J
    invoke-direct {p0, p1}, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl;->readMP3Header(Lcom/googlecode/mp4parser/DataSource;)Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl$MP3Header;

    move-result-object v3

    move-object v4, v3

    .local v4, "hdr":Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl$MP3Header;
    if-nez v3, :cond_e

    .line 176
    nop

    .line 185
    .end local v1    # "pos":J
    .end local v4    # "hdr":Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl$MP3Header;
    return-object v0

    .line 177
    .restart local v1    # "pos":J
    .restart local v4    # "hdr":Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl$MP3Header;
    :cond_e
    if-nez v0, :cond_11

    .line 178
    move-object v0, v4

    .line 179
    :cond_11
    invoke-interface {p1, v1, v2}, Lcom/googlecode/mp4parser/DataSource;->position(J)V

    .line 180
    invoke-virtual {v4}, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl$MP3Header;->getFrameLength()I

    move-result v3

    invoke-static {v3}, Ljava/nio/ByteBuffer;->allocate(I)Ljava/nio/ByteBuffer;

    move-result-object v3

    .line 181
    .local v3, "data":Ljava/nio/ByteBuffer;
    invoke-interface {p1, v3}, Lcom/googlecode/mp4parser/DataSource;->read(Ljava/nio/ByteBuffer;)I

    .line 182
    invoke-virtual {v3}, Ljava/nio/ByteBuffer;->rewind()Ljava/nio/Buffer;

    .line 183
    iget-object v5, p0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl;->samples:Ljava/util/List;

    new-instance v6, Lcom/googlecode/mp4parser/authoring/SampleImpl;

    invoke-direct {v6, v3}, Lcom/googlecode/mp4parser/authoring/SampleImpl;-><init>(Ljava/nio/ByteBuffer;)V

    invoke-interface {v5, v6}, Ljava/util/List;->add(Ljava/lang/Object;)Z

    .line 172
    .end local v1    # "pos":J
    .end local v3    # "data":Ljava/nio/ByteBuffer;
    .end local v4    # "hdr":Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl$MP3Header;
    goto :goto_1
.end method


# virtual methods
.method public close()V
    .registers 2
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/io/IOException;
        }
    .end annotation

    .line 57
    iget-object v0, p0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl;->dataSource:Lcom/googlecode/mp4parser/DataSource;

    invoke-interface {v0}, Lcom/googlecode/mp4parser/DataSource;->close()V

    .line 58
    return-void
.end method

.method public getHandler()Ljava/lang/String;
    .registers 2

    .line 142
    const-string/jumbo v0, "soun"

    return-object v0
.end method

.method public getSampleDescriptionBox()Lcom/coremedia/iso/boxes/SampleDescriptionBox;
    .registers 2

    .line 130
    iget-object v0, p0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl;->sampleDescriptionBox:Lcom/coremedia/iso/boxes/SampleDescriptionBox;

    return-object v0
.end method

.method public getSampleDurations()[J
    .registers 2

    .line 134
    iget-object v0, p0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl;->durations:[J

    return-object v0
.end method

.method public getSamples()Ljava/util/List;
    .registers 2
    .annotation system Ldalvik/annotation/Signature;
        value = {
            "()",
            "Ljava/util/List<",
            "Lcom/googlecode/mp4parser/authoring/Sample;",
            ">;"
        }
    .end annotation

    .line 146
    iget-object v0, p0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl;->samples:Ljava/util/List;

    return-object v0
.end method

.method public getTrackMetaData()Lcom/googlecode/mp4parser/authoring/TrackMetaData;
    .registers 2

    .line 138
    iget-object v0, p0, Lcom/googlecode/mp4parser/authoring/tracks/MP3TrackImpl;->trackMetaData:Lcom/googlecode/mp4parser/authoring/TrackMetaData;

    return-object v0
.end method

.method public toString()Ljava/lang/String;
    .registers 2

    .line 233
    const-string v0, "MP3TrackImpl"

    return-object v0
.end method