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

1266 lines
22 KiB
Smali

.class public final Lcom/google/android/exoplayer2/util/NalUnitUtil;
.super Ljava/lang/Object;
.source "NalUnitUtil.java"
# annotations
.annotation system Ldalvik/annotation/MemberClasses;
value = {
Lcom/google/android/exoplayer2/util/NalUnitUtil$PpsData;,
Lcom/google/android/exoplayer2/util/NalUnitUtil$SpsData;
}
.end annotation
# static fields
.field public static final ASPECT_RATIO_IDC_VALUES:[F
.field public static final EXTENDED_SAR:I = 0xff
.field private static final H264_NAL_UNIT_TYPE_SEI:I = 0x6
.field private static final H264_NAL_UNIT_TYPE_SPS:I = 0x7
.field private static final H265_NAL_UNIT_TYPE_PREFIX_SEI:I = 0x27
.field public static final NAL_START_CODE:[B
.field private static final TAG:Ljava/lang/String; = "NalUnitUtil"
.field private static scratchEscapePositions:[I
.field private static final scratchEscapePositionsLock:Ljava/lang/Object;
# direct methods
.method public static constructor <clinit>()V
.locals 1
const/4 v0, 0x4
new-array v0, v0, [B
.line 1
fill-array-data v0, :array_0
sput-object v0, Lcom/google/android/exoplayer2/util/NalUnitUtil;->NAL_START_CODE:[B
const/16 v0, 0x11
new-array v0, v0, [F
.line 2
fill-array-data v0, :array_1
sput-object v0, Lcom/google/android/exoplayer2/util/NalUnitUtil;->ASPECT_RATIO_IDC_VALUES:[F
.line 3
new-instance v0, Ljava/lang/Object;
invoke-direct {v0}, Ljava/lang/Object;-><init>()V
sput-object v0, Lcom/google/android/exoplayer2/util/NalUnitUtil;->scratchEscapePositionsLock:Ljava/lang/Object;
const/16 v0, 0xa
new-array v0, v0, [I
.line 4
sput-object v0, Lcom/google/android/exoplayer2/util/NalUnitUtil;->scratchEscapePositions:[I
return-void
nop
:array_0
.array-data 1
0x0t
0x0t
0x0t
0x1t
.end array-data
:array_1
.array-data 4
0x3f800000 # 1.0f
0x3f800000 # 1.0f
0x3f8ba2e9
0x3f68ba2f
0x3fba2e8c
0x3f9b26ca
0x400ba2e9
0x3fe8ba2f
0x403a2e8c
0x401b26ca
0x3fd1745d
0x3fae8ba3
0x3ff83e10
0x3fcede62
0x3faaaaab
0x3fc00000 # 1.5f
0x40000000 # 2.0f
.end array-data
.end method
.method private constructor <init>()V
.locals 0
.line 1
invoke-direct {p0}, Ljava/lang/Object;-><init>()V
return-void
.end method
.method public static clearPrefixFlags([Z)V
.locals 2
const/4 v0, 0x0
.line 1
aput-boolean v0, p0, v0
const/4 v1, 0x1
.line 2
aput-boolean v0, p0, v1
const/4 v1, 0x2
.line 3
aput-boolean v0, p0, v1
return-void
.end method
.method public static discardToSps(Ljava/nio/ByteBuffer;)V
.locals 9
.line 1
invoke-virtual {p0}, Ljava/nio/ByteBuffer;->position()I
move-result v0
const/4 v1, 0x0
move v2, v1
move v3, v2
:goto_0
add-int/lit8 v4, v2, 0x1
if-ge v4, v0, :cond_3
.line 2
invoke-virtual {p0, v2}, Ljava/nio/ByteBuffer;->get(I)B
move-result v5
and-int/lit16 v5, v5, 0xff
const/4 v6, 0x3
if-ne v3, v6, :cond_0
const/4 v7, 0x1
if-ne v5, v7, :cond_1
.line 3
invoke-virtual {p0, v4}, Ljava/nio/ByteBuffer;->get(I)B
move-result v7
and-int/lit8 v7, v7, 0x1f
const/4 v8, 0x7
if-ne v7, v8, :cond_1
.line 4
invoke-virtual {p0}, Ljava/nio/ByteBuffer;->duplicate()Ljava/nio/ByteBuffer;
move-result-object v3
sub-int/2addr v2, v6
.line 5
invoke-virtual {v3, v2}, Ljava/nio/ByteBuffer;->position(I)Ljava/nio/Buffer;
.line 6
invoke-virtual {v3, v0}, Ljava/nio/ByteBuffer;->limit(I)Ljava/nio/Buffer;
.line 7
invoke-virtual {p0, v1}, Ljava/nio/ByteBuffer;->position(I)Ljava/nio/Buffer;
.line 8
invoke-virtual {p0, v3}, Ljava/nio/ByteBuffer;->put(Ljava/nio/ByteBuffer;)Ljava/nio/ByteBuffer;
return-void
:cond_0
if-nez v5, :cond_1
add-int/lit8 v3, v3, 0x1
:cond_1
if-eqz v5, :cond_2
move v3, v1
:cond_2
move v2, v4
goto :goto_0
.line 9
:cond_3
invoke-virtual {p0}, Ljava/nio/ByteBuffer;->clear()Ljava/nio/Buffer;
return-void
.end method
.method public static findNalUnit([BII[Z)I
.locals 7
sub-int v0, p2, p1
const/4 v1, 0x0
const/4 v2, 0x1
if-ltz v0, :cond_0
move v3, v2
goto :goto_0
:cond_0
move v3, v1
.line 1
:goto_0
invoke-static {v3}, Lcom/google/android/exoplayer2/util/Assertions;->checkState(Z)V
if-nez v0, :cond_1
return p2
:cond_1
const/4 v3, 0x2
if-eqz p3, :cond_4
.line 2
aget-boolean v4, p3, v1
if-eqz v4, :cond_2
.line 3
invoke-static {p3}, Lcom/google/android/exoplayer2/util/NalUnitUtil;->clearPrefixFlags([Z)V
add-int/lit8 p1, p1, -0x3
return p1
:cond_2
if-le v0, v2, :cond_3
.line 4
aget-boolean v4, p3, v2
if-eqz v4, :cond_3
aget-byte v4, p0, p1
if-ne v4, v2, :cond_3
.line 5
invoke-static {p3}, Lcom/google/android/exoplayer2/util/NalUnitUtil;->clearPrefixFlags([Z)V
sub-int/2addr p1, v3
return p1
:cond_3
if-le v0, v3, :cond_4
.line 6
aget-boolean v4, p3, v3
if-eqz v4, :cond_4
aget-byte v4, p0, p1
if-nez v4, :cond_4
add-int/lit8 v4, p1, 0x1
aget-byte v4, p0, v4
if-ne v4, v2, :cond_4
.line 7
invoke-static {p3}, Lcom/google/android/exoplayer2/util/NalUnitUtil;->clearPrefixFlags([Z)V
sub-int/2addr p1, v2
return p1
:cond_4
add-int/lit8 v4, p2, -0x1
add-int/2addr p1, v3
:goto_1
if-ge p1, v4, :cond_8
.line 8
aget-byte v5, p0, p1
and-int/lit16 v5, v5, 0xfe
if-eqz v5, :cond_5
goto :goto_2
:cond_5
add-int/lit8 v5, p1, -0x2
.line 9
aget-byte v6, p0, v5
if-nez v6, :cond_7
add-int/lit8 v6, p1, -0x1
aget-byte v6, p0, v6
if-nez v6, :cond_7
aget-byte v6, p0, p1
if-ne v6, v2, :cond_7
if-eqz p3, :cond_6
.line 10
invoke-static {p3}, Lcom/google/android/exoplayer2/util/NalUnitUtil;->clearPrefixFlags([Z)V
:cond_6
return v5
:cond_7
add-int/lit8 p1, p1, -0x2
:goto_2
add-int/lit8 p1, p1, 0x3
goto :goto_1
:cond_8
if-eqz p3, :cond_f
if-le v0, v3, :cond_a
add-int/lit8 p1, p2, -0x3
.line 11
aget-byte p1, p0, p1
if-nez p1, :cond_9
add-int/lit8 p1, p2, -0x2
aget-byte p1, p0, p1
if-nez p1, :cond_9
aget-byte p1, p0, v4
if-ne p1, v2, :cond_9
goto :goto_3
:cond_9
move p1, v1
goto :goto_4
:cond_a
if-ne v0, v3, :cond_b
aget-boolean p1, p3, v3
if-eqz p1, :cond_9
add-int/lit8 p1, p2, -0x2
aget-byte p1, p0, p1
if-nez p1, :cond_9
aget-byte p1, p0, v4
if-ne p1, v2, :cond_9
goto :goto_3
:cond_b
aget-boolean p1, p3, v2
if-eqz p1, :cond_9
aget-byte p1, p0, v4
if-ne p1, v2, :cond_9
:goto_3
move p1, v2
:goto_4
aput-boolean p1, p3, v1
if-le v0, v2, :cond_c
add-int/lit8 p1, p2, -0x2
.line 12
aget-byte p1, p0, p1
if-nez p1, :cond_d
aget-byte p1, p0, v4
if-nez p1, :cond_d
goto :goto_5
:cond_c
aget-boolean p1, p3, v3
if-eqz p1, :cond_d
aget-byte p1, p0, v4
if-nez p1, :cond_d
:goto_5
move p1, v2
goto :goto_6
:cond_d
move p1, v1
:goto_6
aput-boolean p1, p3, v2
.line 13
aget-byte p0, p0, v4
if-nez p0, :cond_e
move v1, v2
:cond_e
aput-boolean v1, p3, v3
:cond_f
return p2
.end method
.method private static findNextUnescapeIndex([BII)I
.locals 2
:goto_0
add-int/lit8 v0, p2, -0x2
if-ge p1, v0, :cond_1
.line 1
aget-byte v0, p0, p1
if-nez v0, :cond_0
add-int/lit8 v0, p1, 0x1
aget-byte v0, p0, v0
if-nez v0, :cond_0
add-int/lit8 v0, p1, 0x2
aget-byte v0, p0, v0
const/4 v1, 0x3
if-ne v0, v1, :cond_0
return p1
:cond_0
add-int/lit8 p1, p1, 0x1
goto :goto_0
:cond_1
return p2
.end method
.method public static getH265NalUnitType([BI)I
.locals 0
add-int/lit8 p1, p1, 0x3
.line 1
aget-byte p0, p0, p1
and-int/lit8 p0, p0, 0x7e
shr-int/lit8 p0, p0, 0x1
return p0
.end method
.method public static getNalUnitType([BI)I
.locals 0
add-int/lit8 p1, p1, 0x3
.line 1
aget-byte p0, p0, p1
and-int/lit8 p0, p0, 0x1f
return p0
.end method
.method public static isNalUnitSei(Ljava/lang/String;B)Z
.locals 3
const-string v0, "video/avc"
.line 1
invoke-virtual {v0, p0}, Ljava/lang/String;->equals(Ljava/lang/Object;)Z
move-result v0
const/4 v1, 0x1
if-eqz v0, :cond_0
and-int/lit8 v0, p1, 0x1f
const/4 v2, 0x6
if-eq v0, v2, :cond_2
:cond_0
const-string v0, "video/hevc"
.line 2
invoke-virtual {v0, p0}, Ljava/lang/String;->equals(Ljava/lang/Object;)Z
move-result p0
if-eqz p0, :cond_1
and-int/lit8 p0, p1, 0x7e
shr-int/2addr p0, v1
const/16 p1, 0x27
if-ne p0, p1, :cond_1
goto :goto_0
:cond_1
const/4 v1, 0x0
:cond_2
:goto_0
return v1
.end method
.method public static parsePpsNalUnit([BII)Lcom/google/android/exoplayer2/util/NalUnitUtil$PpsData;
.locals 1
.line 1
new-instance v0, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;
invoke-direct {v0, p0, p1, p2}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;-><init>([BII)V
const/16 p0, 0x8
.line 2
invoke-virtual {v0, p0}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;->skipBits(I)V
.line 3
invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;->readUnsignedExpGolombCodedInt()I
move-result p0
.line 4
invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;->readUnsignedExpGolombCodedInt()I
move-result p1
.line 5
invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;->skipBit()V
.line 6
invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;->readBit()Z
move-result p2
.line 7
new-instance v0, Lcom/google/android/exoplayer2/util/NalUnitUtil$PpsData;
invoke-direct {v0, p0, p1, p2}, Lcom/google/android/exoplayer2/util/NalUnitUtil$PpsData;-><init>(IIZ)V
return-object v0
.end method
.method public static parseSpsNalUnit([BII)Lcom/google/android/exoplayer2/util/NalUnitUtil$SpsData;
.locals 17
.line 1
new-instance v0, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;
move-object/from16 v1, p0
move/from16 v2, p1
move/from16 v3, p2
invoke-direct {v0, v1, v2, v3}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;-><init>([BII)V
const/16 v1, 0x8
.line 2
invoke-virtual {v0, v1}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;->skipBits(I)V
.line 3
invoke-virtual {v0, v1}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;->readBits(I)I
move-result v2
const/16 v3, 0x10
.line 4
invoke-virtual {v0, v3}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;->skipBits(I)V
.line 5
invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;->readUnsignedExpGolombCodedInt()I
move-result v5
const/4 v4, 0x3
const/4 v6, 0x0
const/4 v7, 0x1
const/16 v8, 0x64
if-eq v2, v8, :cond_1
const/16 v8, 0x6e
if-eq v2, v8, :cond_1
const/16 v8, 0x7a
if-eq v2, v8, :cond_1
const/16 v8, 0xf4
if-eq v2, v8, :cond_1
const/16 v8, 0x2c
if-eq v2, v8, :cond_1
const/16 v8, 0x53
if-eq v2, v8, :cond_1
const/16 v8, 0x56
if-eq v2, v8, :cond_1
const/16 v8, 0x76
if-eq v2, v8, :cond_1
const/16 v8, 0x80
if-eq v2, v8, :cond_1
const/16 v8, 0x8a
if-ne v2, v8, :cond_0
goto :goto_0
:cond_0
move v9, v6
move v2, v7
goto :goto_5
.line 6
:cond_1
:goto_0
invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;->readUnsignedExpGolombCodedInt()I
move-result v2
if-ne v2, v4, :cond_2
.line 7
invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;->readBit()Z
move-result v8
goto :goto_1
:cond_2
move v8, v6
.line 8
:goto_1
invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;->readUnsignedExpGolombCodedInt()I
.line 9
invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;->readUnsignedExpGolombCodedInt()I
.line 10
invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;->skipBit()V
.line 11
invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;->readBit()Z
move-result v9
if-eqz v9, :cond_6
if-eq v2, v4, :cond_3
move v4, v1
goto :goto_2
:cond_3
const/16 v4, 0xc
:goto_2
move v9, v6
:goto_3
if-ge v9, v4, :cond_6
.line 12
invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;->readBit()Z
move-result v10
if-eqz v10, :cond_5
const/4 v10, 0x6
if-ge v9, v10, :cond_4
move v10, v3
goto :goto_4
:cond_4
const/16 v10, 0x40
.line 13
:goto_4
invoke-static {v0, v10}, Lcom/google/android/exoplayer2/util/NalUnitUtil;->skipScalingList(Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;I)V
:cond_5
add-int/lit8 v9, v9, 0x1
goto :goto_3
:cond_6
move v9, v8
.line 14
:goto_5
invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;->readUnsignedExpGolombCodedInt()I
move-result v4
add-int/lit8 v11, v4, 0x4
.line 15
invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;->readUnsignedExpGolombCodedInt()I
move-result v12
if-nez v12, :cond_7
.line 16
invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;->readUnsignedExpGolombCodedInt()I
move-result v4
add-int/lit8 v4, v4, 0x4
move/from16 p1, v2
move v13, v4
move v14, v6
goto :goto_7
:cond_7
if-ne v12, v7, :cond_9
.line 17
invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;->readBit()Z
move-result v4
.line 18
invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;->readSignedExpGolombCodedInt()I
.line 19
invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;->readSignedExpGolombCodedInt()I
.line 20
invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;->readUnsignedExpGolombCodedInt()I
move-result v8
int-to-long v13, v8
move/from16 p1, v2
move v8, v6
:goto_6
int-to-long v1, v8
cmp-long v1, v1, v13
if-gez v1, :cond_8
.line 21
invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;->readUnsignedExpGolombCodedInt()I
add-int/lit8 v8, v8, 0x1
goto :goto_6
:cond_8
move v14, v4
move v13, v6
goto :goto_7
:cond_9
move/from16 p1, v2
move v13, v6
move v14, v13
.line 22
:goto_7
invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;->readUnsignedExpGolombCodedInt()I
.line 23
invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;->skipBit()V
.line 24
invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;->readUnsignedExpGolombCodedInt()I
move-result v1
add-int/2addr v1, v7
.line 25
invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;->readUnsignedExpGolombCodedInt()I
move-result v2
add-int/2addr v2, v7
.line 26
invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;->readBit()Z
move-result v10
rsub-int/lit8 v4, v10, 0x2
mul-int/2addr v4, v2
if-nez v10, :cond_a
.line 27
invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;->skipBit()V
.line 28
:cond_a
invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;->skipBit()V
mul-int/2addr v1, v3
mul-int/2addr v4, v3
.line 29
invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;->readBit()Z
move-result v2
if-eqz v2, :cond_e
.line 30
invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;->readUnsignedExpGolombCodedInt()I
move-result v2
.line 31
invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;->readUnsignedExpGolombCodedInt()I
move-result v3
.line 32
invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;->readUnsignedExpGolombCodedInt()I
move-result v6
.line 33
invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;->readUnsignedExpGolombCodedInt()I
move-result v8
if-nez p1, :cond_b
rsub-int/lit8 v15, v10, 0x2
goto :goto_a
:cond_b
const/4 v15, 0x3
move/from16 v7, p1
if-ne v7, v15, :cond_c
const/4 v15, 0x1
const/16 v16, 0x1
goto :goto_8
:cond_c
const/4 v15, 0x1
const/16 v16, 0x2
:goto_8
if-ne v7, v15, :cond_d
const/4 v7, 0x2
goto :goto_9
:cond_d
move v7, v15
:goto_9
rsub-int/lit8 v15, v10, 0x2
mul-int/2addr v15, v7
move/from16 v7, v16
:goto_a
add-int/2addr v2, v3
mul-int/2addr v2, v7
sub-int/2addr v1, v2
add-int/2addr v6, v8
mul-int/2addr v6, v15
sub-int/2addr v4, v6
:cond_e
move v6, v1
move v7, v4
const/high16 v1, 0x3f800000 # 1.0f
.line 34
invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;->readBit()Z
move-result v2
if-eqz v2, :cond_11
.line 35
invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;->readBit()Z
move-result v2
if-eqz v2, :cond_11
const/16 v2, 0x8
.line 36
invoke-virtual {v0, v2}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;->readBits(I)I
move-result v2
const/16 v3, 0xff
if-ne v2, v3, :cond_f
const/16 v2, 0x10
.line 37
invoke-virtual {v0, v2}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;->readBits(I)I
move-result v3
.line 38
invoke-virtual {v0, v2}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;->readBits(I)I
move-result v0
if-eqz v3, :cond_11
if-eqz v0, :cond_11
int-to-float v1, v3
int-to-float v0, v0
div-float/2addr v1, v0
goto :goto_b
.line 39
:cond_f
sget-object v0, Lcom/google/android/exoplayer2/util/NalUnitUtil;->ASPECT_RATIO_IDC_VALUES:[F
array-length v3, v0
if-ge v2, v3, :cond_10
.line 40
aget v0, v0, v2
move v8, v0
goto :goto_c
:cond_10
const-string v0, "Unexpected aspect_ratio_idc value: "
const-string v3, "NalUnitUtil"
.line 41
invoke-static {v0, v2, v3}, Ld1/e;->a(Ljava/lang/String;ILjava/lang/String;)V
:cond_11
:goto_b
move v8, v1
.line 42
:goto_c
new-instance v0, Lcom/google/android/exoplayer2/util/NalUnitUtil$SpsData;
move-object v4, v0
invoke-direct/range {v4 .. v14}, Lcom/google/android/exoplayer2/util/NalUnitUtil$SpsData;-><init>(IIIFZZIIIZ)V
return-object v0
.end method
.method private static skipScalingList(Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;I)V
.locals 3
const/16 v0, 0x8
const/4 v1, 0x0
move v2, v1
move v1, v0
:goto_0
if-ge v2, p1, :cond_2
if-eqz v0, :cond_0
.line 1
invoke-virtual {p0}, Lcom/google/android/exoplayer2/util/ParsableNalUnitBitArray;->readSignedExpGolombCodedInt()I
move-result v0
add-int/2addr v0, v1
add-int/lit16 v0, v0, 0x100
.line 2
rem-int/lit16 v0, v0, 0x100
:cond_0
if-nez v0, :cond_1
goto :goto_1
:cond_1
move v1, v0
:goto_1
add-int/lit8 v2, v2, 0x1
goto :goto_0
:cond_2
return-void
.end method
.method public static unescapeStream([BI)I
.locals 8
.line 1
sget-object v0, Lcom/google/android/exoplayer2/util/NalUnitUtil;->scratchEscapePositionsLock:Ljava/lang/Object;
monitor-enter v0
const/4 v1, 0x0
move v2, v1
move v3, v2
:cond_0
:goto_0
if-ge v2, p1, :cond_2
.line 2
:try_start_0
invoke-static {p0, v2, p1}, Lcom/google/android/exoplayer2/util/NalUnitUtil;->findNextUnescapeIndex([BII)I
move-result v2
if-ge v2, p1, :cond_0
.line 3
sget-object v4, Lcom/google/android/exoplayer2/util/NalUnitUtil;->scratchEscapePositions:[I
array-length v5, v4
if-gt v5, v3, :cond_1
.line 4
array-length v5, v4
mul-int/lit8 v5, v5, 0x2
invoke-static {v4, v5}, Ljava/util/Arrays;->copyOf([II)[I
move-result-object v4
sput-object v4, Lcom/google/android/exoplayer2/util/NalUnitUtil;->scratchEscapePositions:[I
.line 5
:cond_1
sget-object v4, Lcom/google/android/exoplayer2/util/NalUnitUtil;->scratchEscapePositions:[I
add-int/lit8 v5, v3, 0x1
aput v2, v4, v3
add-int/lit8 v2, v2, 0x3
move v3, v5
goto :goto_0
:catchall_0
move-exception p0
goto :goto_2
:cond_2
sub-int/2addr p1, v3
move v2, v1
move v4, v2
move v5, v4
:goto_1
if-ge v2, v3, :cond_3
.line 6
sget-object v6, Lcom/google/android/exoplayer2/util/NalUnitUtil;->scratchEscapePositions:[I
aget v6, v6, v2
sub-int/2addr v6, v5
.line 7
invoke-static {p0, v5, p0, v4, v6}, Ljava/lang/System;->arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V
add-int/2addr v4, v6
add-int/lit8 v7, v4, 0x1
.line 8
aput-byte v1, p0, v4
add-int/lit8 v4, v7, 0x1
.line 9
aput-byte v1, p0, v7
add-int/lit8 v6, v6, 0x3
add-int/2addr v5, v6
add-int/lit8 v2, v2, 0x1
goto :goto_1
:cond_3
sub-int v1, p1, v4
.line 10
invoke-static {p0, v5, p0, v4, v1}, Ljava/lang/System;->arraycopy(Ljava/lang/Object;ILjava/lang/Object;II)V
.line 11
monitor-exit v0
return p1
.line 12
:goto_2
monitor-exit v0
:try_end_0
.catchall {:try_start_0 .. :try_end_0} :catchall_0
throw p0
.end method