MpegAudioReader.smali

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

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


# static fields
.field private static final HEADER_SIZE:I = 0x4

.field private static final STATE_FINDING_HEADER:I = 0x0

.field private static final STATE_READING_FRAME:I = 0x2

.field private static final STATE_READING_HEADER:I = 0x1


# instance fields
.field private frameBytesRead:I

.field private frameDurationUs:J

.field private frameSize:I

.field private hasOutputFormat:Z

.field private final header:Lcom/google/android/exoplayer2/extractor/MpegAudioHeader;

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

.field private final language:Ljava/lang/String;

.field private lastByteWasFF:Z

.field private output:Lcom/google/android/exoplayer2/extractor/TrackOutput;

.field private state:I

.field private timeUs:J


# direct methods
.method public constructor <init>()V
    .registers 2

    const/4 v0, 0x0

    .line 58
    invoke-direct {p0, v0}, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;-><init>(Ljava/lang/String;)V

    return-void
.end method

.method public constructor <init>(Ljava/lang/String;)V
    .registers 5

    .line 61
    invoke-direct {p0}, Ljava/lang/Object;-><init>()V

    const/4 v0, 0x0

    .line 62
    iput v0, p0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->state:I

    .line 64
    new-instance v1, Lcom/google/android/exoplayer2/util/ParsableByteArray;

    const/4 v2, 0x4

    invoke-direct {v1, v2}, Lcom/google/android/exoplayer2/util/ParsableByteArray;-><init>(I)V

    iput-object v1, p0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->headerScratch:Lcom/google/android/exoplayer2/util/ParsableByteArray;

    .line 65
    iget-object v1, v1, Lcom/google/android/exoplayer2/util/ParsableByteArray;->data:[B

    const/4 v2, -0x1

    aput-byte v2, v1, v0

    .line 66
    new-instance v0, Lcom/google/android/exoplayer2/extractor/MpegAudioHeader;

    invoke-direct {v0}, Lcom/google/android/exoplayer2/extractor/MpegAudioHeader;-><init>()V

    iput-object v0, p0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->header:Lcom/google/android/exoplayer2/extractor/MpegAudioHeader;

    .line 67
    iput-object p1, p0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->language:Ljava/lang/String;

    return-void
.end method

.method private findHeader(Lcom/google/android/exoplayer2/util/ParsableByteArray;)V
    .registers 10

    .line 122
    iget-object v0, p1, Lcom/google/android/exoplayer2/util/ParsableByteArray;->data:[B

    .line 123
    invoke-virtual {p1}, Lcom/google/android/exoplayer2/util/ParsableByteArray;->getPosition()I

    move-result v1

    .line 124
    invoke-virtual {p1}, Lcom/google/android/exoplayer2/util/ParsableByteArray;->limit()I

    move-result v2

    :goto_a
    if-ge v1, v2, :cond_42

    .line 126
    aget-byte v3, v0, v1

    const/16 v4, 0xff

    and-int/2addr v3, v4

    const/4 v5, 0x0

    const/4 v6, 0x1

    if-ne v3, v4, :cond_17

    const/4 v3, 0x1

    goto :goto_18

    :cond_17
    const/4 v3, 0x0

    .line 127
    :goto_18
    iget-boolean v4, p0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->lastByteWasFF:Z

    if-eqz v4, :cond_25

    aget-byte v4, v0, v1

    const/16 v7, 0xe0

    and-int/2addr v4, v7

    if-ne v4, v7, :cond_25

    const/4 v4, 0x1

    goto :goto_26

    :cond_25
    const/4 v4, 0x0

    .line 128
    :goto_26
    iput-boolean v3, p0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->lastByteWasFF:Z

    if-eqz v4, :cond_3f

    add-int/lit8 v2, v1, 0x1

    .line 130
    invoke-virtual {p1, v2}, Lcom/google/android/exoplayer2/util/ParsableByteArray;->setPosition(I)V

    .line 132
    iput-boolean v5, p0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->lastByteWasFF:Z

    .line 133
    iget-object p1, p0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->headerScratch:Lcom/google/android/exoplayer2/util/ParsableByteArray;

    iget-object p1, p1, Lcom/google/android/exoplayer2/util/ParsableByteArray;->data:[B

    aget-byte v0, v0, v1

    aput-byte v0, p1, v6

    const/4 p1, 0x2

    .line 134
    iput p1, p0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->frameBytesRead:I

    .line 135
    iput v6, p0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->state:I

    return-void

    :cond_3f
    add-int/lit8 v1, v1, 0x1

    goto :goto_a

    .line 139
    :cond_42
    invoke-virtual {p1, v2}, Lcom/google/android/exoplayer2/util/ParsableByteArray;->setPosition(I)V

    return-void
.end method

.method private readFrameRemainder(Lcom/google/android/exoplayer2/util/ParsableByteArray;)V
    .registers 9

    .line 204
    invoke-virtual {p1}, Lcom/google/android/exoplayer2/util/ParsableByteArray;->bytesLeft()I

    move-result v0

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

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

    sub-int/2addr v1, v2

    invoke-static {v0, v1}, Ljava/lang/Math;->min(II)I

    move-result v0

    .line 205
    iget-object v1, p0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->output:Lcom/google/android/exoplayer2/extractor/TrackOutput;

    invoke-interface {v1, p1, v0}, Lcom/google/android/exoplayer2/extractor/TrackOutput;->sampleData(Lcom/google/android/exoplayer2/util/ParsableByteArray;I)V

    .line 206
    iget p1, p0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->frameBytesRead:I

    add-int/2addr p1, v0

    iput p1, p0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->frameBytesRead:I

    .line 207
    iget v4, p0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->frameSize:I

    if-ge p1, v4, :cond_1c

    return-void

    .line 212
    :cond_1c
    iget-object v0, p0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->output:Lcom/google/android/exoplayer2/extractor/TrackOutput;

    iget-wide v1, p0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->timeUs:J

    const/4 v3, 0x1

    const/4 v5, 0x0

    const/4 v6, 0x0

    invoke-interface/range {v0 .. v6}, Lcom/google/android/exoplayer2/extractor/TrackOutput;->sampleMetadata(JIII[B)V

    .line 213
    iget-wide v0, p0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->timeUs:J

    iget-wide v2, p0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->frameDurationUs:J

    add-long/2addr v0, v2

    iput-wide v0, p0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->timeUs:J

    const/4 p1, 0x0

    .line 214
    iput p1, p0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->frameBytesRead:I

    .line 215
    iput p1, p0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->state:I

    return-void
.end method

.method private readHeaderRemainder(Lcom/google/android/exoplayer2/util/ParsableByteArray;)V
    .registers 22

    move-object/from16 v0, p0

    .line 159
    invoke-virtual/range {p1 .. p1}, Lcom/google/android/exoplayer2/util/ParsableByteArray;->bytesLeft()I

    move-result v1

    iget v2, v0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->frameBytesRead:I

    const/4 v3, 0x4

    rsub-int/lit8 v2, v2, 0x4

    invoke-static {v1, v2}, Ljava/lang/Math;->min(II)I

    move-result v1

    .line 160
    iget-object v2, v0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->headerScratch:Lcom/google/android/exoplayer2/util/ParsableByteArray;

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

    iget v4, v0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->frameBytesRead:I

    move-object/from16 v5, p1

    invoke-virtual {v5, v2, v4, v1}, Lcom/google/android/exoplayer2/util/ParsableByteArray;->readBytes([BII)V

    .line 161
    iget v2, v0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->frameBytesRead:I

    add-int/2addr v2, v1

    iput v2, v0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->frameBytesRead:I

    if-ge v2, v3, :cond_22

    return-void

    .line 167
    :cond_22
    iget-object v1, v0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->headerScratch:Lcom/google/android/exoplayer2/util/ParsableByteArray;

    const/4 v2, 0x0

    invoke-virtual {v1, v2}, Lcom/google/android/exoplayer2/util/ParsableByteArray;->setPosition(I)V

    .line 168
    iget-object v1, v0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->headerScratch:Lcom/google/android/exoplayer2/util/ParsableByteArray;

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

    move-result v1

    iget-object v4, v0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->header:Lcom/google/android/exoplayer2/extractor/MpegAudioHeader;

    invoke-static {v1, v4}, Lcom/google/android/exoplayer2/extractor/MpegAudioHeader;->populateHeader(ILcom/google/android/exoplayer2/extractor/MpegAudioHeader;)Z

    move-result v1

    const/4 v4, 0x1

    if-nez v1, :cond_3c

    .line 171
    iput v2, v0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->frameBytesRead:I

    .line 172
    iput v4, v0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->state:I

    return-void

    .line 176
    :cond_3c
    iget-object v1, v0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->header:Lcom/google/android/exoplayer2/extractor/MpegAudioHeader;

    iget v1, v1, Lcom/google/android/exoplayer2/extractor/MpegAudioHeader;->frameSize:I

    iput v1, v0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->frameSize:I

    .line 177
    iget-boolean v1, v0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->hasOutputFormat:Z

    if-nez v1, :cond_7e

    const-wide/32 v5, 0xf4240

    .line 178
    iget-object v1, v0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->header:Lcom/google/android/exoplayer2/extractor/MpegAudioHeader;

    iget v1, v1, Lcom/google/android/exoplayer2/extractor/MpegAudioHeader;->samplesPerFrame:I

    int-to-long v7, v1

    mul-long v7, v7, v5

    iget-object v1, v0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->header:Lcom/google/android/exoplayer2/extractor/MpegAudioHeader;

    iget v1, v1, Lcom/google/android/exoplayer2/extractor/MpegAudioHeader;->sampleRate:I

    int-to-long v5, v1

    div-long/2addr v7, v5

    iput-wide v7, v0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->frameDurationUs:J

    const/4 v9, 0x0

    .line 179
    iget-object v1, v0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->header:Lcom/google/android/exoplayer2/extractor/MpegAudioHeader;

    iget-object v10, v1, Lcom/google/android/exoplayer2/extractor/MpegAudioHeader;->mimeType:Ljava/lang/String;

    const/4 v11, 0x0

    const/4 v12, -0x1

    const/16 v13, 0x1000

    iget-object v1, v0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->header:Lcom/google/android/exoplayer2/extractor/MpegAudioHeader;

    iget v14, v1, Lcom/google/android/exoplayer2/extractor/MpegAudioHeader;->channels:I

    iget-object v1, v0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->header:Lcom/google/android/exoplayer2/extractor/MpegAudioHeader;

    iget v15, v1, Lcom/google/android/exoplayer2/extractor/MpegAudioHeader;->sampleRate:I

    const/16 v16, 0x0

    const/16 v17, 0x0

    const/16 v18, 0x0

    iget-object v1, v0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->language:Ljava/lang/String;

    move-object/from16 v19, v1

    invoke-static/range {v9 .. v19}, Lcom/google/android/exoplayer2/Format;->createAudioSampleFormat(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;IIIILjava/util/List;Lcom/google/android/exoplayer2/drm/DrmInitData;ILjava/lang/String;)Lcom/google/android/exoplayer2/Format;

    move-result-object v1

    .line 182
    iget-object v5, v0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->output:Lcom/google/android/exoplayer2/extractor/TrackOutput;

    invoke-interface {v5, v1}, Lcom/google/android/exoplayer2/extractor/TrackOutput;->format(Lcom/google/android/exoplayer2/Format;)V

    .line 183
    iput-boolean v4, v0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->hasOutputFormat:Z

    .line 186
    :cond_7e
    iget-object v1, v0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->headerScratch:Lcom/google/android/exoplayer2/util/ParsableByteArray;

    invoke-virtual {v1, v2}, Lcom/google/android/exoplayer2/util/ParsableByteArray;->setPosition(I)V

    .line 187
    iget-object v1, v0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->output:Lcom/google/android/exoplayer2/extractor/TrackOutput;

    iget-object v2, v0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->headerScratch:Lcom/google/android/exoplayer2/util/ParsableByteArray;

    invoke-interface {v1, v2, v3}, Lcom/google/android/exoplayer2/extractor/TrackOutput;->sampleData(Lcom/google/android/exoplayer2/util/ParsableByteArray;I)V

    const/4 v1, 0x2

    .line 188
    iput v1, v0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->state:I

    return-void
.end method


# virtual methods
.method public consume(Lcom/google/android/exoplayer2/util/ParsableByteArray;)V
    .registers 4

    .line 89
    :goto_0
    invoke-virtual {p1}, Lcom/google/android/exoplayer2/util/ParsableByteArray;->bytesLeft()I

    move-result v0

    if-lez v0, :cond_1d

    .line 90
    iget v0, p0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->state:I

    if-eqz v0, :cond_19

    const/4 v1, 0x1

    if-eq v0, v1, :cond_15

    const/4 v1, 0x2

    if-eq v0, v1, :cond_11

    goto :goto_0

    .line 98
    :cond_11
    invoke-direct {p0, p1}, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->readFrameRemainder(Lcom/google/android/exoplayer2/util/ParsableByteArray;)V

    goto :goto_0

    .line 95
    :cond_15
    invoke-direct {p0, p1}, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->readHeaderRemainder(Lcom/google/android/exoplayer2/util/ParsableByteArray;)V

    goto :goto_0

    .line 92
    :cond_19
    invoke-direct {p0, p1}, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->findHeader(Lcom/google/android/exoplayer2/util/ParsableByteArray;)V

    goto :goto_0

    :cond_1d
    return-void
.end method

.method public createTracks(Lcom/google/android/exoplayer2/extractor/ExtractorOutput;Lcom/google/android/exoplayer2/extractor/ts/TsPayloadReader$TrackIdGenerator;)V
    .registers 3

    .line 79
    invoke-virtual {p2}, Lcom/google/android/exoplayer2/extractor/ts/TsPayloadReader$TrackIdGenerator;->getNextId()I

    move-result p2

    invoke-interface {p1, p2}, Lcom/google/android/exoplayer2/extractor/ExtractorOutput;->track(I)Lcom/google/android/exoplayer2/extractor/TrackOutput;

    move-result-object p1

    iput-object p1, p0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->output:Lcom/google/android/exoplayer2/extractor/TrackOutput;

    return-void
.end method

.method public packetFinished()V
    .registers 1

    return-void
.end method

.method public packetStarted(JZ)V
    .registers 4

    .line 84
    iput-wide p1, p0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->timeUs:J

    return-void
.end method

.method public seek()V
    .registers 2

    const/4 v0, 0x0

    .line 72
    iput v0, p0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->state:I

    .line 73
    iput v0, p0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->frameBytesRead:I

    .line 74
    iput-boolean v0, p0, Lcom/google/android/exoplayer2/extractor/ts/MpegAudioReader;->lastByteWasFF:Z

    return-void
.end method