BitstreamReader.smali
.class public Lcom/googlecode/mp4parser/h264/read/BitstreamReader;
.super Ljava/lang/Object;
.source "BitstreamReader.java"
# static fields
.field protected static bitsRead:I
# instance fields
.field private curByte:I
.field protected debugBits:Lcom/googlecode/mp4parser/h264/CharCache;
.field private is:Ljava/io/InputStream;
.field nBit:I
.field private nextByte:I
# direct methods
.method static constructor <clinit>()V
.registers 1
return-void
.end method
.method public constructor <init>(Ljava/io/InputStream;)V
.registers 4
.param p1, "is" # Ljava/io/InputStream;
.annotation system Ldalvik/annotation/Throws;
value = {
Ljava/io/IOException;
}
.end annotation
.line 42
invoke-direct {p0}, Ljava/lang/Object;-><init>()V
.line 40
new-instance v0, Lcom/googlecode/mp4parser/h264/CharCache;
const/16 v1, 0x32
invoke-direct {v0, v1}, Lcom/googlecode/mp4parser/h264/CharCache;-><init>(I)V
iput-object v0, p0, Lcom/googlecode/mp4parser/h264/read/BitstreamReader;->debugBits:Lcom/googlecode/mp4parser/h264/CharCache;
.line 43
iput-object p1, p0, Lcom/googlecode/mp4parser/h264/read/BitstreamReader;->is:Ljava/io/InputStream;
.line 44
invoke-virtual {p1}, Ljava/io/InputStream;->read()I
move-result v0
iput v0, p0, Lcom/googlecode/mp4parser/h264/read/BitstreamReader;->curByte:I
.line 45
invoke-virtual {p1}, Ljava/io/InputStream;->read()I
move-result v0
iput v0, p0, Lcom/googlecode/mp4parser/h264/read/BitstreamReader;->nextByte:I
.line 46
return-void
.end method
.method private advance()V
.registers 2
.annotation system Ldalvik/annotation/Throws;
value = {
Ljava/io/IOException;
}
.end annotation
.line 93
iget v0, p0, Lcom/googlecode/mp4parser/h264/read/BitstreamReader;->nextByte:I
iput v0, p0, Lcom/googlecode/mp4parser/h264/read/BitstreamReader;->curByte:I
.line 94
iget-object v0, p0, Lcom/googlecode/mp4parser/h264/read/BitstreamReader;->is:Ljava/io/InputStream;
invoke-virtual {v0}, Ljava/io/InputStream;->read()I
move-result v0
iput v0, p0, Lcom/googlecode/mp4parser/h264/read/BitstreamReader;->nextByte:I
.line 95
const/4 v0, 0x0
iput v0, p0, Lcom/googlecode/mp4parser/h264/read/BitstreamReader;->nBit:I
.line 96
return-void
.end method
# virtual methods
.method public close()V
.registers 1
.annotation system Ldalvik/annotation/Throws;
value = {
Ljava/io/IOException;
}
.end annotation
.line 193
return-void
.end method
.method public getBitPosition()J
.registers 3
.line 132
sget v0, Lcom/googlecode/mp4parser/h264/read/BitstreamReader;->bitsRead:I
mul-int/lit8 v0, v0, 0x8
iget v1, p0, Lcom/googlecode/mp4parser/h264/read/BitstreamReader;->nBit:I
rem-int/lit8 v1, v1, 0x8
add-int/2addr v0, v1
int-to-long v0, v0
return-wide v0
.end method
.method public getCurBit()I
.registers 2
.line 196
iget v0, p0, Lcom/googlecode/mp4parser/h264/read/BitstreamReader;->nBit:I
return v0
.end method
.method public isByteAligned()Z
.registers 2
.line 184
iget v0, p0, Lcom/googlecode/mp4parser/h264/read/BitstreamReader;->nBit:I
rem-int/lit8 v0, v0, 0x8
if-nez v0, :cond_8
const/4 v0, 0x1
return v0
:cond_8
const/4 v0, 0x0
return v0
.end method
.method public moreRBSPData()Z
.registers 8
.annotation system Ldalvik/annotation/Throws;
value = {
Ljava/io/IOException;
}
.end annotation
.line 121
iget v0, p0, Lcom/googlecode/mp4parser/h264/read/BitstreamReader;->nBit:I
const/16 v1, 0x8
if-ne v0, v1, :cond_9
.line 122
invoke-direct {p0}, Lcom/googlecode/mp4parser/h264/read/BitstreamReader;->advance()V
.line 124
:cond_9
iget v0, p0, Lcom/googlecode/mp4parser/h264/read/BitstreamReader;->nBit:I
sub-int/2addr v1, v0
const/4 v0, 0x1
sub-int/2addr v1, v0
shl-int v1, v0, v1
.line 125
.local v1, "tail":I
shl-int/lit8 v2, v1, 0x1
sub-int/2addr v2, v0
.line 126
.local v2, "mask":I
iget v3, p0, Lcom/googlecode/mp4parser/h264/read/BitstreamReader;->curByte:I
and-int/2addr v3, v2
const/4 v4, 0x0
if-ne v3, v1, :cond_1b
const/4 v3, 0x1
goto :goto_1c
:cond_1b
const/4 v3, 0x0
.line 128
.local v3, "hasTail":Z
:goto_1c
iget v5, p0, Lcom/googlecode/mp4parser/h264/read/BitstreamReader;->curByte:I
const/4 v6, -0x1
if-eq v5, v6, :cond_27
iget v5, p0, Lcom/googlecode/mp4parser/h264/read/BitstreamReader;->nextByte:I
if-ne v5, v6, :cond_28
if-eqz v3, :cond_28
:cond_27
const/4 v0, 0x0
:cond_28
return v0
.end method
.method public peakNextBits(I)I
.registers 9
.param p1, "n" # I
.annotation system Ldalvik/annotation/Throws;
value = {
Ljava/io/IOException;
}
.end annotation
.line 150
const/16 v0, 0x8
if-gt p1, v0, :cond_4a
.line 152
iget v1, p0, Lcom/googlecode/mp4parser/h264/read/BitstreamReader;->nBit:I
if-ne v1, v0, :cond_11
.line 153
invoke-direct {p0}, Lcom/googlecode/mp4parser/h264/read/BitstreamReader;->advance()V
.line 154
iget v1, p0, Lcom/googlecode/mp4parser/h264/read/BitstreamReader;->curByte:I
const/4 v2, -0x1
if-ne v1, v2, :cond_11
.line 155
return v2
.line 158
:cond_11
iget v1, p0, Lcom/googlecode/mp4parser/h264/read/BitstreamReader;->nBit:I
rsub-int/lit8 v1, v1, 0x10
new-array v1, v1, [I
.line 160
.local v1, "bits":[I
const/4 v2, 0x0
.line 161
.local v2, "cnt":I
iget v3, p0, Lcom/googlecode/mp4parser/h264/read/BitstreamReader;->nBit:I
.local v3, "i":I
:goto_1a
if-lt v3, v0, :cond_3b
.line 165
.end local v3 # "i":I
const/4 v3, 0x0
.restart local v3 # "i":I
:goto_1d
if-lt v3, v0, :cond_2c
.line 169
.end local v3 # "i":I
const/4 v0, 0x0
.line 170
.local v0, "result":I
const/4 v3, 0x0
.restart local v3 # "i":I
:goto_21
if-lt v3, p1, :cond_24
.line 175
.end local v3 # "i":I
return v0
.line 171
.restart local v3 # "i":I
:cond_24
shl-int/lit8 v0, v0, 0x1
.line 172
aget v4, v1, v3
or-int/2addr v0, v4
.line 170
add-int/lit8 v3, v3, 0x1
goto :goto_21
.line 166
.end local v0 # "result":I
:cond_2c
add-int/lit8 v4, v2, 0x1
.end local v2 # "cnt":I
.local v4, "cnt":I
iget v5, p0, Lcom/googlecode/mp4parser/h264/read/BitstreamReader;->nextByte:I
rsub-int/lit8 v6, v3, 0x7
shr-int/2addr v5, v6
and-int/lit8 v5, v5, 0x1
aput v5, v1, v2
.line 165
add-int/lit8 v3, v3, 0x1
move v2, v4
goto :goto_1d
.line 162
.end local v4 # "cnt":I
.restart local v2 # "cnt":I
:cond_3b
add-int/lit8 v4, v2, 0x1
.end local v2 # "cnt":I
.restart local v4 # "cnt":I
iget v5, p0, Lcom/googlecode/mp4parser/h264/read/BitstreamReader;->curByte:I
rsub-int/lit8 v6, v3, 0x7
shr-int/2addr v5, v6
and-int/lit8 v5, v5, 0x1
aput v5, v1, v2
.line 161
add-int/lit8 v3, v3, 0x1
move v2, v4
goto :goto_1a
.line 151
.end local v1 # "bits":[I
.end local v3 # "i":I
.end local v4 # "cnt":I
:cond_4a
new-instance v0, Ljava/lang/IllegalArgumentException;
const-string v1, "N should be less then 8"
invoke-direct {v0, v1}, Ljava/lang/IllegalArgumentException;-><init>(Ljava/lang/String;)V
goto :goto_53
:goto_52
throw v0
:goto_53
goto :goto_52
.end method
.method public read1Bit()I
.registers 4
.annotation system Ldalvik/annotation/Throws;
value = {
Ljava/io/IOException;
}
.end annotation
.line 58
iget v0, p0, Lcom/googlecode/mp4parser/h264/read/BitstreamReader;->nBit:I
const/16 v1, 0x8
if-ne v0, v1, :cond_f
.line 59
invoke-direct {p0}, Lcom/googlecode/mp4parser/h264/read/BitstreamReader;->advance()V
.line 60
iget v0, p0, Lcom/googlecode/mp4parser/h264/read/BitstreamReader;->curByte:I
const/4 v1, -0x1
if-ne v0, v1, :cond_f
.line 61
return v1
.line 64
:cond_f
iget v0, p0, Lcom/googlecode/mp4parser/h264/read/BitstreamReader;->curByte:I
iget v1, p0, Lcom/googlecode/mp4parser/h264/read/BitstreamReader;->nBit:I
rsub-int/lit8 v2, v1, 0x7
shr-int/2addr v0, v2
and-int/lit8 v0, v0, 0x1
.line 65
.local v0, "res":I
add-int/lit8 v1, v1, 0x1
iput v1, p0, Lcom/googlecode/mp4parser/h264/read/BitstreamReader;->nBit:I
.line 67
iget-object v1, p0, Lcom/googlecode/mp4parser/h264/read/BitstreamReader;->debugBits:Lcom/googlecode/mp4parser/h264/CharCache;
if-nez v0, :cond_23
const/16 v2, 0x30
goto :goto_25
:cond_23
const/16 v2, 0x31
:goto_25
invoke-virtual {v1, v2}, Lcom/googlecode/mp4parser/h264/CharCache;->append(C)V
.line 68
sget v1, Lcom/googlecode/mp4parser/h264/read/BitstreamReader;->bitsRead:I
add-int/lit8 v1, v1, 0x1
sput v1, Lcom/googlecode/mp4parser/h264/read/BitstreamReader;->bitsRead:I
.line 70
return v0
.end method
.method public readBool()Z
.registers 3
.annotation system Ldalvik/annotation/Throws;
value = {
Ljava/io/IOException;
}
.end annotation
.line 49
invoke-virtual {p0}, Lcom/googlecode/mp4parser/h264/read/BitstreamReader;->read1Bit()I
move-result v0
const/4 v1, 0x1
if-ne v0, v1, :cond_8
return v1
:cond_8
const/4 v0, 0x0
return v0
.end method
.method public readByte()I
.registers 2
.annotation system Ldalvik/annotation/Throws;
value = {
Ljava/io/IOException;
}
.end annotation
.line 104
iget v0, p0, Lcom/googlecode/mp4parser/h264/read/BitstreamReader;->nBit:I
if-lez v0, :cond_7
.line 105
invoke-direct {p0}, Lcom/googlecode/mp4parser/h264/read/BitstreamReader;->advance()V
.line 108
:cond_7
iget v0, p0, Lcom/googlecode/mp4parser/h264/read/BitstreamReader;->curByte:I
.line 110
.local v0, "res":I
invoke-direct {p0}, Lcom/googlecode/mp4parser/h264/read/BitstreamReader;->advance()V
.line 112
return v0
.end method
.method public readNBit(I)J
.registers 7
.param p1, "n" # I
.annotation system Ldalvik/annotation/Throws;
value = {
Ljava/io/IOException;
}
.end annotation
.line 79
const/16 v0, 0x40
if-gt p1, v0, :cond_15
.line 82
const-wide/16 v0, 0x0
.line 84
.local v0, "val":J
const/4 v2, 0x0
.local v2, "i":I
:goto_7
if-lt v2, p1, :cond_a
.line 89
.end local v2 # "i":I
return-wide v0
.line 85
.restart local v2 # "i":I
:cond_a
const/4 v3, 0x1
shl-long/2addr v0, v3
.line 86
invoke-virtual {p0}, Lcom/googlecode/mp4parser/h264/read/BitstreamReader;->read1Bit()I
move-result v3
int-to-long v3, v3
or-long/2addr v0, v3
.line 84
add-int/lit8 v2, v2, 0x1
goto :goto_7
.line 80
.end local v0 # "val":J
.end local v2 # "i":I
:cond_15
new-instance v0, Ljava/lang/IllegalArgumentException;
const-string v1, "Can not readByte more then 64 bit"
invoke-direct {v0, v1}, Ljava/lang/IllegalArgumentException;-><init>(Ljava/lang/String;)V
goto :goto_1e
:goto_1d
throw v0
:goto_1e
goto :goto_1d
.end method
.method public readRemainingByte()J
.registers 3
.annotation system Ldalvik/annotation/Throws;
value = {
Ljava/io/IOException;
}
.end annotation
.line 141
iget v0, p0, Lcom/googlecode/mp4parser/h264/read/BitstreamReader;->nBit:I
rsub-int/lit8 v0, v0, 0x8
invoke-virtual {p0, v0}, Lcom/googlecode/mp4parser/h264/read/BitstreamReader;->readNBit(I)J
move-result-wide v0
return-wide v0
.end method