2022-06-10 21:38:30 +09:00

492 lines
10 KiB
Smali

.class public final Lcom/google/android/exoplayer2/util/ParsableBitArray;
.super Ljava/lang/Object;
.source "ParsableBitArray.java"
# instance fields
.field private bitOffset:I
.field private byteLimit:I
.field private byteOffset:I
.field public data:[B
# direct methods
.method public constructor <init>()V
.locals 0
.line 1
invoke-direct {p0}, Ljava/lang/Object;-><init>()V
return-void
.end method
.method public constructor <init>([B)V
.locals 1
.line 2
array-length v0, p1
invoke-direct {p0, p1, v0}, Lcom/google/android/exoplayer2/util/ParsableBitArray;-><init>([BI)V
return-void
.end method
.method public constructor <init>([BI)V
.locals 0
.line 3
invoke-direct {p0}, Ljava/lang/Object;-><init>()V
.line 4
iput-object p1, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->data:[B
.line 5
iput p2, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->byteLimit:I
return-void
.end method
.method private assertValidOffset()V
.locals 2
.line 1
iget v0, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->byteOffset:I
if-ltz v0, :cond_1
iget v1, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->byteLimit:I
if-lt v0, v1, :cond_0
if-ne v0, v1, :cond_1
iget v0, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->bitOffset:I
if-nez v0, :cond_1
:cond_0
const/4 v0, 0x1
goto :goto_0
:cond_1
const/4 v0, 0x0
:goto_0
invoke-static {v0}, Lcom/google/android/exoplayer2/util/Assertions;->checkState(Z)V
return-void
.end method
# virtual methods
.method public bitsLeft()I
.locals 2
.line 1
iget v0, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->byteLimit:I
iget v1, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->byteOffset:I
sub-int/2addr v0, v1
mul-int/lit8 v0, v0, 0x8
iget v1, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->bitOffset:I
sub-int/2addr v0, v1
return v0
.end method
.method public byteAlign()V
.locals 1
.line 1
iget v0, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->bitOffset:I
if-nez v0, :cond_0
return-void
:cond_0
const/4 v0, 0x0
.line 2
iput v0, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->bitOffset:I
.line 3
iget v0, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->byteOffset:I
add-int/lit8 v0, v0, 0x1
iput v0, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->byteOffset:I
.line 4
invoke-direct {p0}, Lcom/google/android/exoplayer2/util/ParsableBitArray;->assertValidOffset()V
return-void
.end method
.method public getBytePosition()I
.locals 1
.line 1
iget v0, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->bitOffset:I
if-nez v0, :cond_0
const/4 v0, 0x1
goto :goto_0
:cond_0
const/4 v0, 0x0
:goto_0
invoke-static {v0}, Lcom/google/android/exoplayer2/util/Assertions;->checkState(Z)V
.line 2
iget v0, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->byteOffset:I
return v0
.end method
.method public getPosition()I
.locals 2
.line 1
iget v0, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->byteOffset:I
mul-int/lit8 v0, v0, 0x8
iget v1, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->bitOffset:I
add-int/2addr v0, v1
return v0
.end method
.method public readBit()Z
.locals 3
.line 1
iget-object v0, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->data:[B
iget v1, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->byteOffset:I
aget-byte v0, v0, v1
iget v1, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->bitOffset:I
const/16 v2, 0x80
shr-int v1, v2, v1
and-int/2addr v0, v1
if-eqz v0, :cond_0
const/4 v0, 0x1
goto :goto_0
:cond_0
const/4 v0, 0x0
.line 2
:goto_0
invoke-virtual {p0}, Lcom/google/android/exoplayer2/util/ParsableBitArray;->skipBit()V
return v0
.end method
.method public readBits(I)I
.locals 7
.line 1
iget v0, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->bitOffset:I
add-int/2addr v0, p1
iput v0, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->bitOffset:I
const/4 v0, 0x0
move v1, v0
.line 2
:goto_0
iget v2, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->bitOffset:I
const/16 v3, 0x8
if-le v2, v3, :cond_0
add-int/lit8 v2, v2, -0x8
.line 3
iput v2, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->bitOffset:I
.line 4
iget-object v3, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->data:[B
iget v4, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->byteOffset:I
add-int/lit8 v5, v4, 0x1
iput v5, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->byteOffset:I
aget-byte v3, v3, v4
and-int/lit16 v3, v3, 0xff
shl-int v2, v3, v2
or-int/2addr v1, v2
goto :goto_0
.line 5
:cond_0
iget-object v4, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->data:[B
iget v5, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->byteOffset:I
aget-byte v4, v4, v5
and-int/lit16 v4, v4, 0xff
rsub-int/lit8 v6, v2, 0x8
shr-int/2addr v4, v6
or-int/2addr v1, v4
const/4 v4, -0x1
rsub-int/lit8 p1, p1, 0x20
ushr-int p1, v4, p1
and-int/2addr p1, v1
if-ne v2, v3, :cond_1
.line 6
iput v0, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->bitOffset:I
add-int/lit8 v5, v5, 0x1
.line 7
iput v5, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->byteOffset:I
.line 8
:cond_1
invoke-direct {p0}, Lcom/google/android/exoplayer2/util/ParsableBitArray;->assertValidOffset()V
return p1
.end method
.method public readBytes([BII)V
.locals 2
.line 1
iget v0, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->bitOffset:I
if-nez v0, :cond_0
const/4 v0, 0x1
goto :goto_0
:cond_0
const/4 v0, 0x0
:goto_0
invoke-static {v0}, Lcom/google/android/exoplayer2/util/Assertions;->checkState(Z)V
.line 2
iget-object v0, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->data:[B
iget v1, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->byteOffset:I
invoke-static {v0, v1, p1, p2, p3}, Ljava/lang/System;->arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V
.line 3
iget p1, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->byteOffset:I
add-int/2addr p1, p3
iput p1, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->byteOffset:I
.line 4
invoke-direct {p0}, Lcom/google/android/exoplayer2/util/ParsableBitArray;->assertValidOffset()V
return-void
.end method
.method public reset([B)V
.locals 1
.line 1
array-length v0, p1
invoke-virtual {p0, p1, v0}, Lcom/google/android/exoplayer2/util/ParsableBitArray;->reset([BI)V
return-void
.end method
.method public reset([BI)V
.locals 0
.line 2
iput-object p1, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->data:[B
const/4 p1, 0x0
.line 3
iput p1, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->byteOffset:I
.line 4
iput p1, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->bitOffset:I
.line 5
iput p2, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->byteLimit:I
return-void
.end method
.method public setPosition(I)V
.locals 1
.line 1
div-int/lit8 v0, p1, 0x8
iput v0, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->byteOffset:I
mul-int/lit8 v0, v0, 0x8
sub-int/2addr p1, v0
.line 2
iput p1, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->bitOffset:I
.line 3
invoke-direct {p0}, Lcom/google/android/exoplayer2/util/ParsableBitArray;->assertValidOffset()V
return-void
.end method
.method public skipBit()V
.locals 2
.line 1
iget v0, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->bitOffset:I
add-int/lit8 v0, v0, 0x1
iput v0, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->bitOffset:I
const/16 v1, 0x8
if-ne v0, v1, :cond_0
const/4 v0, 0x0
.line 2
iput v0, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->bitOffset:I
.line 3
iget v0, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->byteOffset:I
add-int/lit8 v0, v0, 0x1
iput v0, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->byteOffset:I
.line 4
:cond_0
invoke-direct {p0}, Lcom/google/android/exoplayer2/util/ParsableBitArray;->assertValidOffset()V
return-void
.end method
.method public skipBits(I)V
.locals 3
.line 1
div-int/lit8 v0, p1, 0x8
.line 2
iget v1, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->byteOffset:I
add-int/2addr v1, v0
iput v1, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->byteOffset:I
.line 3
iget v2, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->bitOffset:I
mul-int/lit8 v0, v0, 0x8
sub-int/2addr p1, v0
add-int/2addr p1, v2
iput p1, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->bitOffset:I
const/4 v0, 0x7
if-le p1, v0, :cond_0
add-int/lit8 v1, v1, 0x1
.line 4
iput v1, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->byteOffset:I
add-int/lit8 p1, p1, -0x8
.line 5
iput p1, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->bitOffset:I
.line 6
:cond_0
invoke-direct {p0}, Lcom/google/android/exoplayer2/util/ParsableBitArray;->assertValidOffset()V
return-void
.end method
.method public skipBytes(I)V
.locals 1
.line 1
iget v0, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->bitOffset:I
if-nez v0, :cond_0
const/4 v0, 0x1
goto :goto_0
:cond_0
const/4 v0, 0x0
:goto_0
invoke-static {v0}, Lcom/google/android/exoplayer2/util/Assertions;->checkState(Z)V
.line 2
iget v0, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->byteOffset:I
add-int/2addr v0, p1
iput v0, p0, Lcom/google/android/exoplayer2/util/ParsableBitArray;->byteOffset:I
.line 3
invoke-direct {p0}, Lcom/google/android/exoplayer2/util/ParsableBitArray;->assertValidOffset()V
return-void
.end method