com.google.android.exoplayer2.audio

Class DtsUtil

java.lang.Object

com.google.android.exoplayer2.audio.DtsUtil

public final class DtsUtil
extends java.lang.Object

Utility methods for parsing DTS frames.

Method Summary

Modifier and Type	Method and Description
static int	getDtsFrameSize(byte[] data) Returns the size in bytes of the given DTS frame.
static boolean	isSyncWord(int word) Returns whether a given integer matches a DTS sync word.
static int	parseDtsAudioSampleCount(byte[] data) Returns the number of audio samples represented by the given DTS frame.
static int	parseDtsAudioSampleCount(java.nio.ByteBuffer buffer) Like parseDtsAudioSampleCount(byte[]) but reads from a ByteBuffer.
static Format	parseDtsFormat(byte[] frame, java.lang.String trackId, java.lang.String language, DrmInitData drmInitData) Returns the DTS format given data containing the DTS frame according to ETSI TS 102 114 subsections 5.3/5.4.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

isSyncWord

public static boolean isSyncWord(int word)

Returns whether a given integer matches a DTS sync word. Synchronization and storage modes are defined in ETSI TS 102 114 V1.1.1 (2002-08), Section 5.3.

Parameters:

word - An integer.

Returns:

Whether a given integer matches a DTS sync word.

parseDtsFormat

public static Format parseDtsFormat(byte[] frame,
                                    java.lang.String trackId,
                                    java.lang.String language,
                                    DrmInitData drmInitData)

Returns the DTS format given data containing the DTS frame according to ETSI TS 102 114 subsections 5.3/5.4.

Parameters:

frame - The DTS frame to parse.

trackId - The track identifier to set on the format.

language - The language to set on the format.

drmInitData - DrmInitData to be included in the format.

Returns:

The DTS format parsed from data in the header.

parseDtsAudioSampleCount

public static int parseDtsAudioSampleCount(byte[] data)

Returns the number of audio samples represented by the given DTS frame.

Parameters:

data - The frame to parse.

Returns:

The number of audio samples represented by the frame.

parseDtsAudioSampleCount

public static int parseDtsAudioSampleCount(java.nio.ByteBuffer buffer)

Like parseDtsAudioSampleCount(byte[]) but reads from a ByteBuffer. The buffer's position is not modified.

Parameters:

buffer - The ByteBuffer from which to read.

Returns:

The number of audio samples represented by the syncframe.

getDtsFrameSize

public static int getDtsFrameSize(byte[] data)

Returns the size in bytes of the given DTS frame.

Parameters:

data - The frame to parse.

Returns:

The frame's size in bytes.