MP3Frame.smali

.class public Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame;
.super Ljava/lang/Object;
.source "MP3Frame.java"


# annotations
.annotation system Ldalvik/annotation/MemberClasses;
    value = {
        Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame$Header;,
        Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame$CRC16;
    }
.end annotation


# instance fields
.field private final bytes:[B

.field private final header:Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame$Header;


# direct methods
.method static constructor <clinit>()V
    .registers 1

    return-void
.end method

.method constructor <init>(Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame$Header;[B)V
    .registers 3
    .param p1, "header"    # Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame$Header;
    .param p2, "bytes"    # [B

    .line 240
    invoke-direct {p0}, Ljava/lang/Object;-><init>()V

    .line 241
    iput-object p1, p0, Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame;->header:Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame$Header;

    .line 242
    iput-object p2, p0, Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame;->bytes:[B

    .line 243
    return-void
.end method


# virtual methods
.method public getHeader()Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame$Header;
    .registers 2

    .line 268
    iget-object v0, p0, Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame;->header:Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame$Header;

    return-object v0
.end method

.method public getNumberOfFrames()I
    .registers 6

    .line 297
    invoke-virtual {p0}, Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame;->isXingFrame()Z

    move-result v0

    if-eqz v0, :cond_39

    .line 298
    iget-object v0, p0, Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame;->header:Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame$Header;

    invoke-virtual {v0}, Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame$Header;->getXingOffset()I

    move-result v0

    .line 299
    .local v0, "xingOffset":I
    iget-object v1, p0, Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame;->bytes:[B

    add-int/lit8 v2, v0, 0x7

    aget-byte v2, v1, v2

    .line 300
    .local v2, "flags":B
    and-int/lit8 v3, v2, 0x1

    if-eqz v3, :cond_38

    .line 301
    add-int/lit8 v3, v0, 0x8

    aget-byte v3, v1, v3

    and-int/lit16 v3, v3, 0xff

    shl-int/lit8 v3, v3, 0x18

    add-int/lit8 v4, v0, 0x9

    aget-byte v4, v1, v4

    and-int/lit16 v4, v4, 0xff

    shl-int/lit8 v4, v4, 0x10

    or-int/2addr v3, v4

    add-int/lit8 v4, v0, 0xa

    aget-byte v4, v1, v4

    and-int/lit16 v4, v4, 0xff

    shl-int/lit8 v4, v4, 0x8

    or-int/2addr v3, v4

    add-int/lit8 v4, v0, 0xb

    aget-byte v1, v1, v4

    and-int/lit16 v1, v1, 0xff

    or-int/2addr v1, v3

    return v1

    .line 300
    .end local v0    # "xingOffset":I
    .end local v2    # "flags":B
    :cond_38
    goto :goto_69

    .line 306
    :cond_39
    invoke-virtual {p0}, Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame;->isVBRIFrame()Z

    move-result v0

    if-eqz v0, :cond_69

    .line 307
    iget-object v0, p0, Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame;->header:Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame$Header;

    invoke-virtual {v0}, Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame$Header;->getVBRIOffset()I

    move-result v0

    .line 308
    .local v0, "vbriOffset":I
    iget-object v1, p0, Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame;->bytes:[B

    add-int/lit8 v2, v0, 0xe

    aget-byte v2, v1, v2

    and-int/lit16 v2, v2, 0xff

    shl-int/lit8 v2, v2, 0x18

    add-int/lit8 v3, v0, 0xf

    aget-byte v3, v1, v3

    and-int/lit16 v3, v3, 0xff

    shl-int/lit8 v3, v3, 0x10

    or-int/2addr v2, v3

    add-int/lit8 v3, v0, 0x10

    aget-byte v3, v1, v3

    and-int/lit16 v3, v3, 0xff

    shl-int/lit8 v3, v3, 0x8

    or-int/2addr v2, v3

    add-int/lit8 v3, v0, 0x11

    aget-byte v1, v1, v3

    and-int/lit16 v1, v1, 0xff

    or-int/2addr v1, v2

    return v1

    .line 306
    .end local v0    # "vbriOffset":I
    :cond_69
    :goto_69
    nop

    .line 313
    const/4 v0, -0x1

    return v0
.end method

.method public getSize()I
    .registers 2

    .line 264
    iget-object v0, p0, Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame;->bytes:[B

    array-length v0, v0

    return v0
.end method

.method isChecksumError()Z
    .registers 8

    .line 246
    iget-object v0, p0, Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame;->header:Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame$Header;

    invoke-virtual {v0}, Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame$Header;->getProtection()I

    move-result v0

    const/4 v1, 0x0

    if-nez v0, :cond_53

    .line 247
    iget-object v0, p0, Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame;->header:Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame$Header;

    invoke-virtual {v0}, Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame$Header;->getLayer()I

    move-result v0

    const/4 v2, 0x1

    if-ne v0, v2, :cond_53

    .line 248
    new-instance v0, Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame$CRC16;

    invoke-direct {v0}, Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame$CRC16;-><init>()V

    .line 249
    .local v0, "crc16":Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame$CRC16;
    iget-object v3, p0, Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame;->bytes:[B

    const/4 v4, 0x2

    aget-byte v3, v3, v4

    invoke-virtual {v0, v3}, Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame$CRC16;->update(B)V

    .line 250
    iget-object v3, p0, Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame;->bytes:[B

    const/4 v4, 0x3

    aget-byte v3, v3, v4

    invoke-virtual {v0, v3}, Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame$CRC16;->update(B)V

    .line 252
    iget-object v3, p0, Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame;->header:Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame$Header;

    invoke-virtual {v3}, Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame$Header;->getSideInfoSize()I

    move-result v3

    .line 253
    .local v3, "sideInfoSize":I
    const/4 v4, 0x0

    .local v4, "i":I
    :goto_2e
    if-ge v4, v3, :cond_3c

    .line 254
    iget-object v5, p0, Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame;->bytes:[B

    add-int/lit8 v6, v4, 0x6

    aget-byte v5, v5, v6

    invoke-virtual {v0, v5}, Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame$CRC16;->update(B)V

    .line 253
    add-int/lit8 v4, v4, 0x1

    goto :goto_2e

    .line 256
    .end local v4    # "i":I
    :cond_3c
    iget-object v4, p0, Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame;->bytes:[B

    const/4 v5, 0x4

    aget-byte v5, v4, v5

    and-int/lit16 v5, v5, 0xff

    shl-int/lit8 v5, v5, 0x8

    const/4 v6, 0x5

    aget-byte v4, v4, v6

    and-int/lit16 v4, v4, 0xff

    or-int/2addr v4, v5

    .line 257
    .local v4, "crc":I
    invoke-virtual {v0}, Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame$CRC16;->getValue()S

    move-result v5

    if-eq v4, v5, :cond_52

    const/4 v1, 0x1

    :cond_52
    return v1

    .line 260
    .end local v0    # "crc16":Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame$CRC16;
    .end local v3    # "sideInfoSize":I
    .end local v4    # "crc":I
    :cond_53
    return v1
.end method

.method isVBRIFrame()Z
    .registers 6

    .line 289
    iget-object v0, p0, Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame;->header:Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame$Header;

    invoke-virtual {v0}, Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame$Header;->getVBRIOffset()I

    move-result v0

    .line 290
    .local v0, "vbriOffset":I
    iget-object v1, p0, Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame;->bytes:[B

    array-length v2, v1

    add-int/lit8 v3, v0, 0x1a

    const/4 v4, 0x0

    if-ge v2, v3, :cond_f

    .line 291
    return v4

    .line 293
    :cond_f
    aget-byte v2, v1, v0

    const/16 v3, 0x56

    if-ne v2, v3, :cond_2e

    add-int/lit8 v2, v0, 0x1

    aget-byte v2, v1, v2

    const/16 v3, 0x42

    if-ne v2, v3, :cond_2e

    add-int/lit8 v2, v0, 0x2

    aget-byte v2, v1, v2

    const/16 v3, 0x52

    if-ne v2, v3, :cond_2e

    add-int/lit8 v2, v0, 0x3

    aget-byte v1, v1, v2

    const/16 v2, 0x49

    if-ne v1, v2, :cond_2e

    const/4 v4, 0x1

    :cond_2e
    return v4
.end method

.method isXingFrame()Z
    .registers 8

    .line 272
    iget-object v0, p0, Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame;->header:Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame$Header;

    invoke-virtual {v0}, Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame$Header;->getXingOffset()I

    move-result v0

    .line 273
    .local v0, "xingOffset":I
    iget-object v1, p0, Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame;->bytes:[B

    array-length v2, v1

    add-int/lit8 v3, v0, 0xc

    const/4 v4, 0x0

    if-ge v2, v3, :cond_f

    .line 274
    return v4

    .line 276
    :cond_f
    if-ltz v0, :cond_57

    array-length v2, v1

    add-int/lit8 v3, v0, 0x8

    if-ge v2, v3, :cond_17

    goto :goto_57

    .line 279
    :cond_17
    aget-byte v2, v1, v0

    const/16 v3, 0x58

    const/16 v5, 0x6e

    const/4 v6, 0x1

    if-ne v2, v3, :cond_37

    add-int/lit8 v2, v0, 0x1

    aget-byte v2, v1, v2

    const/16 v3, 0x69

    if-ne v2, v3, :cond_37

    add-int/lit8 v2, v0, 0x2

    aget-byte v2, v1, v2

    if-ne v2, v5, :cond_37

    add-int/lit8 v2, v0, 0x3

    aget-byte v1, v1, v2

    const/16 v2, 0x67

    if-ne v1, v2, :cond_37

    .line 280
    return v6

    .line 282
    :cond_37
    iget-object v1, p0, Lim/tpelyyftgw/messenger/audioinfo/mp3/MP3Frame;->bytes:[B

    aget-byte v2, v1, v0

    const/16 v3, 0x49

    if-ne v2, v3, :cond_56

    add-int/lit8 v2, v0, 0x1

    aget-byte v2, v1, v2

    if-ne v2, v5, :cond_56

    add-int/lit8 v2, v0, 0x2

    aget-byte v2, v1, v2

    const/16 v3, 0x66

    if-ne v2, v3, :cond_56

    add-int/lit8 v2, v0, 0x3

    aget-byte v1, v1, v2

    const/16 v2, 0x6f

    if-ne v1, v2, :cond_56

    .line 283
    return v6

    .line 285
    :cond_56
    return v4

    .line 277
    :cond_57
    :goto_57
    return v4
.end method