PsshAtomUtil.smali

.class public final Lcom/google/android/exoplayer2/extractor/mp4/PsshAtomUtil;
.super Ljava/lang/Object;
.source "PsshAtomUtil.java"


# static fields
.field private static final TAG:Ljava/lang/String; = "PsshAtomUtil"


# direct methods
.method private constructor <init>()V
    .registers 1

    .line 31
    invoke-direct {p0}, Ljava/lang/Object;-><init>()V

    return-void
.end method

.method public static buildPsshAtom(Ljava/util/UUID;[B)[B
    .registers 6

    .line 41
    array-length v0, p1

    add-int/lit8 v0, v0, 0x20

    .line 42
    invoke-static {v0}, Ljava/nio/ByteBuffer;->allocate(I)Ljava/nio/ByteBuffer;

    move-result-object v1

    .line 43
    invoke-virtual {v1, v0}, Ljava/nio/ByteBuffer;->putInt(I)Ljava/nio/ByteBuffer;

    .line 44
    sget v0, Lcom/google/android/exoplayer2/extractor/mp4/Atom;->TYPE_pssh:I

    invoke-virtual {v1, v0}, Ljava/nio/ByteBuffer;->putInt(I)Ljava/nio/ByteBuffer;

    const/4 v0, 0x0

    .line 45
    invoke-virtual {v1, v0}, Ljava/nio/ByteBuffer;->putInt(I)Ljava/nio/ByteBuffer;

    .line 46
    invoke-virtual {p0}, Ljava/util/UUID;->getMostSignificantBits()J

    move-result-wide v2

    invoke-virtual {v1, v2, v3}, Ljava/nio/ByteBuffer;->putLong(J)Ljava/nio/ByteBuffer;

    .line 47
    invoke-virtual {p0}, Ljava/util/UUID;->getLeastSignificantBits()J

    move-result-wide v2

    invoke-virtual {v1, v2, v3}, Ljava/nio/ByteBuffer;->putLong(J)Ljava/nio/ByteBuffer;

    .line 48
    array-length p0, p1

    invoke-virtual {v1, p0}, Ljava/nio/ByteBuffer;->putInt(I)Ljava/nio/ByteBuffer;

    .line 49
    invoke-virtual {v1, p1}, Ljava/nio/ByteBuffer;->put([B)Ljava/nio/ByteBuffer;

    .line 50
    invoke-virtual {v1}, Ljava/nio/ByteBuffer;->array()[B

    move-result-object p0

    return-object p0
.end method

.method private static parsePsshAtom([B)Landroid/util/Pair;
    .registers 10
    .annotation system Ldalvik/annotation/Signature;
        value = {
            "([B)",
            "Landroid/util/Pair<",
            "Ljava/util/UUID;",
            "[B>;"
        }
    .end annotation

    .line 102
    new-instance v0, Lcom/google/android/exoplayer2/util/ParsableByteArray;

    invoke-direct {v0, p0}, Lcom/google/android/exoplayer2/util/ParsableByteArray;-><init>([B)V

    .line 103
    invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableByteArray;->limit()I

    move-result p0

    const/4 v1, 0x0

    const/16 v2, 0x20

    if-ge p0, v2, :cond_f

    return-object v1

    :cond_f
    const/4 p0, 0x0

    .line 107
    invoke-virtual {v0, p0}, Lcom/google/android/exoplayer2/util/ParsableByteArray;->setPosition(I)V

    .line 108
    invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableByteArray;->readInt()I

    move-result v2

    .line 109
    invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableByteArray;->bytesLeft()I

    move-result v3

    add-int/lit8 v3, v3, 0x4

    if-eq v2, v3, :cond_20

    return-object v1

    .line 113
    :cond_20
    invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableByteArray;->readInt()I

    move-result v2

    .line 114
    sget v3, Lcom/google/android/exoplayer2/extractor/mp4/Atom;->TYPE_pssh:I

    if-eq v2, v3, :cond_29

    return-object v1

    .line 118
    :cond_29
    invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableByteArray;->readInt()I

    move-result v2

    invoke-static {v2}, Lcom/google/android/exoplayer2/extractor/mp4/Atom;->parseFullAtomVersion(I)I

    move-result v2

    const/4 v3, 0x1

    if-le v2, v3, :cond_4b

    .line 120
    new-instance p0, Ljava/lang/StringBuilder;

    invoke-direct {p0}, Ljava/lang/StringBuilder;-><init>()V

    const-string v0, "Unsupported pssh version: "

    invoke-virtual {p0, v0}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    invoke-virtual {p0, v2}, Ljava/lang/StringBuilder;->append(I)Ljava/lang/StringBuilder;

    invoke-virtual {p0}, Ljava/lang/StringBuilder;->toString()Ljava/lang/String;

    move-result-object p0

    const-string v0, "PsshAtomUtil"

    invoke-static {v0, p0}, Landroid/util/Log;->w(Ljava/lang/String;Ljava/lang/String;)I

    return-object v1

    .line 123
    :cond_4b
    new-instance v4, Ljava/util/UUID;

    invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableByteArray;->readLong()J

    move-result-wide v5

    invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableByteArray;->readLong()J

    move-result-wide v7

    invoke-direct {v4, v5, v6, v7, v8}, Ljava/util/UUID;-><init>(JJ)V

    if-ne v2, v3, :cond_63

    .line 125
    invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableByteArray;->readUnsignedIntToInt()I

    move-result v2

    mul-int/lit8 v2, v2, 0x10

    .line 126
    invoke-virtual {v0, v2}, Lcom/google/android/exoplayer2/util/ParsableByteArray;->skipBytes(I)V

    .line 128
    :cond_63
    invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableByteArray;->readUnsignedIntToInt()I

    move-result v2

    .line 129
    invoke-virtual {v0}, Lcom/google/android/exoplayer2/util/ParsableByteArray;->bytesLeft()I

    move-result v3

    if-eq v2, v3, :cond_6e

    return-object v1

    .line 133
    :cond_6e
    new-array v1, v2, [B

    .line 134
    invoke-virtual {v0, v1, p0, v2}, Lcom/google/android/exoplayer2/util/ParsableByteArray;->readBytes([BII)V

    .line 135
    invoke-static {v4, v1}, Landroid/util/Pair;->create(Ljava/lang/Object;Ljava/lang/Object;)Landroid/util/Pair;

    move-result-object p0

    return-object p0
.end method

.method public static parseSchemeSpecificData([BLjava/util/UUID;)[B
    .registers 5

    .line 82
    invoke-static {p0}, Lcom/google/android/exoplayer2/extractor/mp4/PsshAtomUtil;->parsePsshAtom([B)Landroid/util/Pair;

    move-result-object p0

    const/4 v0, 0x0

    if-nez p0, :cond_8

    return-object v0

    :cond_8
    if-eqz p1, :cond_38

    .line 86
    iget-object v1, p0, Landroid/util/Pair;->first:Ljava/lang/Object;

    invoke-virtual {p1, v1}, Ljava/util/UUID;->equals(Ljava/lang/Object;)Z

    move-result v1

    if-nez v1, :cond_38

    .line 87
    new-instance v1, Ljava/lang/StringBuilder;

    invoke-direct {v1}, Ljava/lang/StringBuilder;-><init>()V

    const-string v2, "UUID mismatch. Expected: "

    invoke-virtual {v1, v2}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    invoke-virtual {v1, p1}, Ljava/lang/StringBuilder;->append(Ljava/lang/Object;)Ljava/lang/StringBuilder;

    const-string p1, ", got: "

    invoke-virtual {v1, p1}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    iget-object p0, p0, Landroid/util/Pair;->first:Ljava/lang/Object;

    invoke-virtual {v1, p0}, Ljava/lang/StringBuilder;->append(Ljava/lang/Object;)Ljava/lang/StringBuilder;

    const-string p0, "."

    invoke-virtual {v1, p0}, Ljava/lang/StringBuilder;->append(Ljava/lang/String;)Ljava/lang/StringBuilder;

    invoke-virtual {v1}, Ljava/lang/StringBuilder;->toString()Ljava/lang/String;

    move-result-object p0

    const-string p1, "PsshAtomUtil"

    invoke-static {p1, p0}, Landroid/util/Log;->w(Ljava/lang/String;Ljava/lang/String;)I

    return-object v0

    .line 90
    :cond_38
    iget-object p0, p0, Landroid/util/Pair;->second:Ljava/lang/Object;

    check-cast p0, [B

    return-object p0
.end method

.method public static parseUuid([B)Ljava/util/UUID;
    .registers 1

    .line 63
    invoke-static {p0}, Lcom/google/android/exoplayer2/extractor/mp4/PsshAtomUtil;->parsePsshAtom([B)Landroid/util/Pair;

    move-result-object p0

    if-nez p0, :cond_8

    const/4 p0, 0x0

    return-object p0

    .line 67
    :cond_8
    iget-object p0, p0, Landroid/util/Pair;->first:Ljava/lang/Object;

    check-cast p0, Ljava/util/UUID;

    return-object p0
.end method