SectionReader.smali

.class public final Lcom/google/android/exoplayer2/extractor/ts/SectionReader;
.super Ljava/lang/Object;
.source "SectionReader.java"

# interfaces
.implements Lcom/google/android/exoplayer2/extractor/ts/TsPayloadReader;


# static fields
.field private static final DEFAULT_SECTION_BUFFER_LENGTH:I = 0x20

.field private static final MAX_SECTION_LENGTH:I = 0x1002

.field private static final SECTION_HEADER_LENGTH:I = 0x3


# instance fields
.field private bytesRead:I

.field private final reader:Lcom/google/android/exoplayer2/extractor/ts/SectionPayloadReader;

.field private final sectionData:Lcom/google/android/exoplayer2/util/ParsableByteArray;

.field private sectionSyntaxIndicator:Z

.field private totalSectionLength:I

.field private waitingForPayloadStart:Z


# direct methods
.method public constructor <init>(Lcom/google/android/exoplayer2/extractor/ts/SectionPayloadReader;)V
    .registers 3

    .line 42
    invoke-direct {p0}, Ljava/lang/Object;-><init>()V

    .line 43
    iput-object p1, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->reader:Lcom/google/android/exoplayer2/extractor/ts/SectionPayloadReader;

    .line 44
    new-instance p1, Lcom/google/android/exoplayer2/util/ParsableByteArray;

    const/16 v0, 0x20

    invoke-direct {p1, v0}, Lcom/google/android/exoplayer2/util/ParsableByteArray;-><init>(I)V

    iput-object p1, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->sectionData:Lcom/google/android/exoplayer2/util/ParsableByteArray;

    return-void
.end method


# virtual methods
.method public consume(Lcom/google/android/exoplayer2/util/ParsableByteArray;Z)V
    .registers 10

    const/4 v0, -0x1

    if-eqz p2, :cond_d

    .line 63
    invoke-virtual {p1}, Lcom/google/android/exoplayer2/util/ParsableByteArray;->readUnsignedByte()I

    move-result v1

    .line 64
    invoke-virtual {p1}, Lcom/google/android/exoplayer2/util/ParsableByteArray;->getPosition()I

    move-result v2

    add-int/2addr v2, v1

    goto :goto_e

    :cond_d
    const/4 v2, -0x1

    .line 67
    :goto_e
    iget-boolean v1, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->waitingForPayloadStart:Z

    const/4 v3, 0x0

    if-eqz v1, :cond_1d

    if-nez p2, :cond_16

    return-void

    .line 71
    :cond_16
    iput-boolean v3, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->waitingForPayloadStart:Z

    .line 72
    invoke-virtual {p1, v2}, Lcom/google/android/exoplayer2/util/ParsableByteArray;->setPosition(I)V

    .line 73
    iput v3, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->bytesRead:I

    .line 76
    :cond_1d
    :goto_1d
    invoke-virtual {p1}, Lcom/google/android/exoplayer2/util/ParsableByteArray;->bytesLeft()I

    move-result p2

    if-lez p2, :cond_f7

    .line 77
    iget p2, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->bytesRead:I

    const/4 v1, 0x1

    const/4 v2, 0x3

    if-ge p2, v2, :cond_ab

    if-nez p2, :cond_3e

    .line 81
    invoke-virtual {p1}, Lcom/google/android/exoplayer2/util/ParsableByteArray;->readUnsignedByte()I

    move-result p2

    .line 82
    invoke-virtual {p1}, Lcom/google/android/exoplayer2/util/ParsableByteArray;->getPosition()I

    move-result v4

    sub-int/2addr v4, v1

    invoke-virtual {p1, v4}, Lcom/google/android/exoplayer2/util/ParsableByteArray;->setPosition(I)V

    const/16 v4, 0xff

    if-ne p2, v4, :cond_3e

    .line 85
    iput-boolean v1, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->waitingForPayloadStart:Z

    return-void

    .line 89
    :cond_3e
    invoke-virtual {p1}, Lcom/google/android/exoplayer2/util/ParsableByteArray;->bytesLeft()I

    move-result p2

    iget v4, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->bytesRead:I

    rsub-int/lit8 v4, v4, 0x3

    invoke-static {p2, v4}, Ljava/lang/Math;->min(II)I

    move-result p2

    .line 90
    iget-object v4, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->sectionData:Lcom/google/android/exoplayer2/util/ParsableByteArray;

    iget-object v4, v4, Lcom/google/android/exoplayer2/util/ParsableByteArray;->data:[B

    iget v5, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->bytesRead:I

    invoke-virtual {p1, v4, v5, p2}, Lcom/google/android/exoplayer2/util/ParsableByteArray;->readBytes([BII)V

    .line 91
    iget v4, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->bytesRead:I

    add-int/2addr v4, p2

    iput v4, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->bytesRead:I

    if-ne v4, v2, :cond_1d

    .line 93
    iget-object p2, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->sectionData:Lcom/google/android/exoplayer2/util/ParsableByteArray;

    invoke-virtual {p2, v2}, Lcom/google/android/exoplayer2/util/ParsableByteArray;->reset(I)V

    .line 94
    iget-object p2, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->sectionData:Lcom/google/android/exoplayer2/util/ParsableByteArray;

    invoke-virtual {p2, v1}, Lcom/google/android/exoplayer2/util/ParsableByteArray;->skipBytes(I)V

    .line 95
    iget-object p2, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->sectionData:Lcom/google/android/exoplayer2/util/ParsableByteArray;

    invoke-virtual {p2}, Lcom/google/android/exoplayer2/util/ParsableByteArray;->readUnsignedByte()I

    move-result p2

    .line 96
    iget-object v4, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->sectionData:Lcom/google/android/exoplayer2/util/ParsableByteArray;

    invoke-virtual {v4}, Lcom/google/android/exoplayer2/util/ParsableByteArray;->readUnsignedByte()I

    move-result v4

    and-int/lit16 v5, p2, 0x80

    if-eqz v5, :cond_75

    goto :goto_76

    :cond_75
    const/4 v1, 0x0

    .line 97
    :goto_76
    iput-boolean v1, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->sectionSyntaxIndicator:Z

    and-int/lit8 p2, p2, 0xf

    shl-int/lit8 p2, p2, 0x8

    or-int/2addr p2, v4

    add-int/2addr p2, v2

    .line 98
    iput p2, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->totalSectionLength:I

    .line 100
    iget-object p2, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->sectionData:Lcom/google/android/exoplayer2/util/ParsableByteArray;

    invoke-virtual {p2}, Lcom/google/android/exoplayer2/util/ParsableByteArray;->capacity()I

    move-result p2

    iget v1, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->totalSectionLength:I

    if-ge p2, v1, :cond_1d

    .line 102
    iget-object p2, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->sectionData:Lcom/google/android/exoplayer2/util/ParsableByteArray;

    iget-object p2, p2, Lcom/google/android/exoplayer2/util/ParsableByteArray;->data:[B

    .line 103
    iget-object v1, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->sectionData:Lcom/google/android/exoplayer2/util/ParsableByteArray;

    const/16 v4, 0x1002

    iget v5, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->totalSectionLength:I

    array-length v6, p2

    mul-int/lit8 v6, v6, 0x2

    .line 104
    invoke-static {v5, v6}, Ljava/lang/Math;->max(II)I

    move-result v5

    invoke-static {v4, v5}, Ljava/lang/Math;->min(II)I

    move-result v4

    .line 103
    invoke-virtual {v1, v4}, Lcom/google/android/exoplayer2/util/ParsableByteArray;->reset(I)V

    .line 105
    iget-object v1, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->sectionData:Lcom/google/android/exoplayer2/util/ParsableByteArray;

    iget-object v1, v1, Lcom/google/android/exoplayer2/util/ParsableByteArray;->data:[B

    invoke-static {p2, v3, v1, v3, v2}, Ljava/lang/System;->arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V

    goto/16 :goto_1d

    .line 110
    :cond_ab
    invoke-virtual {p1}, Lcom/google/android/exoplayer2/util/ParsableByteArray;->bytesLeft()I

    move-result p2

    iget v2, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->totalSectionLength:I

    iget v4, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->bytesRead:I

    sub-int/2addr v2, v4

    invoke-static {p2, v2}, Ljava/lang/Math;->min(II)I

    move-result p2

    .line 111
    iget-object v2, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->sectionData:Lcom/google/android/exoplayer2/util/ParsableByteArray;

    iget-object v2, v2, Lcom/google/android/exoplayer2/util/ParsableByteArray;->data:[B

    iget v4, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->bytesRead:I

    invoke-virtual {p1, v2, v4, p2}, Lcom/google/android/exoplayer2/util/ParsableByteArray;->readBytes([BII)V

    .line 112
    iget v2, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->bytesRead:I

    add-int/2addr v2, p2

    iput v2, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->bytesRead:I

    .line 113
    iget p2, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->totalSectionLength:I

    if-ne v2, p2, :cond_1d

    .line 114
    iget-boolean v2, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->sectionSyntaxIndicator:Z

    if-eqz v2, :cond_e7

    .line 116
    iget-object p2, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->sectionData:Lcom/google/android/exoplayer2/util/ParsableByteArray;

    iget-object p2, p2, Lcom/google/android/exoplayer2/util/ParsableByteArray;->data:[B

    iget v2, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->totalSectionLength:I

    invoke-static {p2, v3, v2, v0}, Lcom/google/android/exoplayer2/util/Util;->crc([BIII)I

    move-result p2

    if-eqz p2, :cond_dd

    .line 118
    iput-boolean v1, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->waitingForPayloadStart:Z

    return-void

    .line 121
    :cond_dd
    iget-object p2, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->sectionData:Lcom/google/android/exoplayer2/util/ParsableByteArray;

    iget v1, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->totalSectionLength:I

    add-int/lit8 v1, v1, -0x4

    invoke-virtual {p2, v1}, Lcom/google/android/exoplayer2/util/ParsableByteArray;->reset(I)V

    goto :goto_ec

    .line 124
    :cond_e7
    iget-object v1, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->sectionData:Lcom/google/android/exoplayer2/util/ParsableByteArray;

    invoke-virtual {v1, p2}, Lcom/google/android/exoplayer2/util/ParsableByteArray;->reset(I)V

    .line 126
    :goto_ec
    iget-object p2, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->reader:Lcom/google/android/exoplayer2/extractor/ts/SectionPayloadReader;

    iget-object v1, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->sectionData:Lcom/google/android/exoplayer2/util/ParsableByteArray;

    invoke-interface {p2, v1}, Lcom/google/android/exoplayer2/extractor/ts/SectionPayloadReader;->consume(Lcom/google/android/exoplayer2/util/ParsableByteArray;)V

    .line 127
    iput v3, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->bytesRead:I

    goto/16 :goto_1d

    :cond_f7
    return-void
.end method

.method public init(Lcom/google/android/exoplayer2/util/TimestampAdjuster;Lcom/google/android/exoplayer2/extractor/ExtractorOutput;Lcom/google/android/exoplayer2/extractor/ts/TsPayloadReader$TrackIdGenerator;)V
    .registers 5

    .line 50
    iget-object v0, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->reader:Lcom/google/android/exoplayer2/extractor/ts/SectionPayloadReader;

    invoke-interface {v0, p1, p2, p3}, Lcom/google/android/exoplayer2/extractor/ts/SectionPayloadReader;->init(Lcom/google/android/exoplayer2/util/TimestampAdjuster;Lcom/google/android/exoplayer2/extractor/ExtractorOutput;Lcom/google/android/exoplayer2/extractor/ts/TsPayloadReader$TrackIdGenerator;)V

    const/4 p1, 0x1

    .line 51
    iput-boolean p1, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->waitingForPayloadStart:Z

    return-void
.end method

.method public seek()V
    .registers 2

    const/4 v0, 0x1

    .line 56
    iput-boolean v0, p0, Lcom/google/android/exoplayer2/extractor/ts/SectionReader;->waitingForPayloadStart:Z

    return-void
.end method