DirectFileReadDataSource.smali

.class public Lcom/googlecode/mp4parser/DirectFileReadDataSource;
.super Ljava/lang/Object;
.source "DirectFileReadDataSource.java"

# interfaces
.implements Lcom/googlecode/mp4parser/DataSource;


# static fields
.field private static final TRANSFER_SIZE:I


# instance fields
.field private filename:Ljava/lang/String;

.field private raf:Ljava/io/RandomAccessFile;


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

    const v0, 0x356f

    invoke-static {v0}, Lnp/NPFog;->d(I)I

    move-result v0

    sput v0, Lcom/googlecode/mp4parser/DirectFileReadDataSource;->TRANSFER_SIZE:I

    return-void
.end method

.method public constructor <init>(Ljava/io/File;)V
    .registers 4
    .param p1, "f"    # Ljava/io/File;
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/io/IOException;
        }
    .end annotation

    .line 26
    invoke-direct {p0}, Ljava/lang/Object;-><init>()V

    .line 27
    new-instance v0, Ljava/io/RandomAccessFile;

    const-string/jumbo v1, "r"

    invoke-direct {v0, p1, v1}, Ljava/io/RandomAccessFile;-><init>(Ljava/io/File;Ljava/lang/String;)V

    iput-object v0, p0, Lcom/googlecode/mp4parser/DirectFileReadDataSource;->raf:Ljava/io/RandomAccessFile;

    .line 28
    invoke-virtual {p1}, Ljava/io/File;->getName()Ljava/lang/String;

    move-result-object v0

    iput-object v0, p0, Lcom/googlecode/mp4parser/DirectFileReadDataSource;->filename:Ljava/lang/String;

    .line 29
    return-void
.end method


# virtual methods
.method public close()V
    .registers 2
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/io/IOException;
        }
    .end annotation

    .line 80
    iget-object v0, p0, Lcom/googlecode/mp4parser/DirectFileReadDataSource;->raf:Ljava/io/RandomAccessFile;

    invoke-virtual {v0}, Ljava/io/RandomAccessFile;->close()V

    .line 81
    return-void
.end method

.method public map(JJ)Ljava/nio/ByteBuffer;
    .registers 7
    .param p1, "startPosition"    # J
    .param p3, "size"    # J
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/io/IOException;
        }
    .end annotation

    .line 73
    iget-object v0, p0, Lcom/googlecode/mp4parser/DirectFileReadDataSource;->raf:Ljava/io/RandomAccessFile;

    invoke-virtual {v0, p1, p2}, Ljava/io/RandomAccessFile;->seek(J)V

    .line 74
    invoke-static {p3, p4}, Lcom/googlecode/mp4parser/util/CastUtils;->l2i(J)I

    move-result v0

    new-array v0, v0, [B

    .line 75
    .local v0, "payload":[B
    iget-object v1, p0, Lcom/googlecode/mp4parser/DirectFileReadDataSource;->raf:Ljava/io/RandomAccessFile;

    invoke-virtual {v1, v0}, Ljava/io/RandomAccessFile;->readFully([B)V

    .line 76
    invoke-static {v0}, Ljava/nio/ByteBuffer;->wrap([B)Ljava/nio/ByteBuffer;

    move-result-object v1

    return-object v1
.end method

.method public position()J
    .registers 3
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/io/IOException;
        }
    .end annotation

    .line 61
    iget-object v0, p0, Lcom/googlecode/mp4parser/DirectFileReadDataSource;->raf:Ljava/io/RandomAccessFile;

    invoke-virtual {v0}, Ljava/io/RandomAccessFile;->getFilePointer()J

    move-result-wide v0

    return-wide v0
.end method

.method public position(J)V
    .registers 4
    .param p1, "nuPos"    # J
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/io/IOException;
        }
    .end annotation

    .line 65
    iget-object v0, p0, Lcom/googlecode/mp4parser/DirectFileReadDataSource;->raf:Ljava/io/RandomAccessFile;

    invoke-virtual {v0, p1, p2}, Ljava/io/RandomAccessFile;->seek(J)V

    .line 66
    return-void
.end method

.method public read(Ljava/nio/ByteBuffer;)I
    .registers 10
    .param p1, "byteBuffer"    # Ljava/nio/ByteBuffer;
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/io/IOException;
        }
    .end annotation

    .line 32
    invoke-virtual {p1}, Ljava/nio/ByteBuffer;->remaining()I

    move-result v0

    .line 33
    .local v0, "len":I
    const/4 v1, 0x0

    .line 34
    .local v1, "totalRead":I
    const/4 v2, 0x0

    .line 35
    .local v2, "bytesRead":I
    const/16 v3, 0x2000

    new-array v4, v3, [B

    .line 36
    .local v4, "buf":[B
    nop

    :goto_b
    if-lt v1, v0, :cond_e

    goto :goto_1e

    .line 37
    :cond_e
    sub-int v5, v0, v1

    invoke-static {v5, v3}, Ljava/lang/Math;->min(II)I

    move-result v5

    .line 38
    .local v5, "bytesToRead":I
    iget-object v6, p0, Lcom/googlecode/mp4parser/DirectFileReadDataSource;->raf:Ljava/io/RandomAccessFile;

    const/4 v7, 0x0

    invoke-virtual {v6, v4, v7, v5}, Ljava/io/RandomAccessFile;->read([BII)I

    move-result v2

    .line 39
    if-gez v2, :cond_26

    .line 40
    nop

    .line 46
    .end local v5    # "bytesToRead":I
    :goto_1e
    if-gez v2, :cond_24

    if-nez v1, :cond_24

    const/4 v3, -0x1

    goto :goto_25

    :cond_24
    move v3, v1

    :goto_25
    return v3

    .line 42
    .restart local v5    # "bytesToRead":I
    :cond_26
    add-int/2addr v1, v2

    .line 44
    invoke-virtual {p1, v4, v7, v2}, Ljava/nio/ByteBuffer;->put([BII)Ljava/nio/ByteBuffer;

    goto :goto_b
.end method

.method public readAllInOnce(Ljava/nio/ByteBuffer;)I
    .registers 5
    .param p1, "byteBuffer"    # Ljava/nio/ByteBuffer;
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/io/IOException;
        }
    .end annotation

    .line 50
    invoke-virtual {p1}, Ljava/nio/ByteBuffer;->remaining()I

    move-result v0

    new-array v0, v0, [B

    .line 51
    .local v0, "buf":[B
    iget-object v1, p0, Lcom/googlecode/mp4parser/DirectFileReadDataSource;->raf:Ljava/io/RandomAccessFile;

    invoke-virtual {v1, v0}, Ljava/io/RandomAccessFile;->read([B)I

    move-result v1

    .line 52
    .local v1, "read":I
    const/4 v2, 0x0

    invoke-virtual {p1, v0, v2, v1}, Ljava/nio/ByteBuffer;->put([BII)Ljava/nio/ByteBuffer;

    .line 53
    return v1
.end method

.method public size()J
    .registers 3
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/io/IOException;
        }
    .end annotation

    .line 57
    iget-object v0, p0, Lcom/googlecode/mp4parser/DirectFileReadDataSource;->raf:Ljava/io/RandomAccessFile;

    invoke-virtual {v0}, Ljava/io/RandomAccessFile;->length()J

    move-result-wide v0

    return-wide v0
.end method

.method public toString()Ljava/lang/String;
    .registers 2

    .line 86
    iget-object v0, p0, Lcom/googlecode/mp4parser/DirectFileReadDataSource;->filename:Ljava/lang/String;

    return-object v0
.end method

.method public transferTo(JJLjava/nio/channels/WritableByteChannel;)J
    .registers 8
    .param p1, "position"    # J
    .param p3, "count"    # J
    .param p5, "target"    # Ljava/nio/channels/WritableByteChannel;
    .annotation system Ldalvik/annotation/Throws;
        value = {
            Ljava/io/IOException;
        }
    .end annotation

    .line 69
    invoke-virtual {p0, p1, p2, p3, p4}, Lcom/googlecode/mp4parser/DirectFileReadDataSource;->map(JJ)Ljava/nio/ByteBuffer;

    move-result-object v0

    invoke-interface {p5, v0}, Ljava/nio/channels/WritableByteChannel;->write(Ljava/nio/ByteBuffer;)I

    move-result v0

    int-to-long v0, v0

    return-wide v0
.end method