WavUtil

Kotlin |Java

@UnstableApi
class WavUtil

Utilities for handling WAVE files.

Summary

Constants
`const Int`	`DATA_FOURCC = 1684108385` Four character code for "data".
`const Int`	`DS64_FOURCC = 1685272116` Four character code for "ds64".
`const Int`	`FACT_FOURCC = 1717658484` Four character code for "fact".
`const Int`	`FMT_FOURCC = 1718449184` Four character code for "fmt ".
`const Int`	`RF64_FOURCC = 1380333108` Four character code for "RF64".
`const Int`	`RIFF_FOURCC = 1380533830` Four character code for "RIFF".
`const Int`	`TYPE_ALAW = 6` WAVE type value for 8-bit ITU-T G.711 A-law audio data.
`const Int`	`TYPE_FLOAT = 3` WAVE type value for float PCM audio data.
`const Int`	`TYPE_IMA_ADPCM = 17` WAVE type value for IMA ADPCM audio data.
`const Int`	`TYPE_MLAW = 7` WAVE type value for 8-bit ITU-T G.711 mu-law audio data.
`const Int`	`TYPE_PCM = 1` WAVE type value for integer PCM audio data.
`const Int`	`TYPE_WAVE_FORMAT_EXTENSIBLE = 65534` WAVE type value for extended WAVE format.
`const Int`	`WAVE_FOURCC = 1463899717` Four character code for "WAVE".

Public functions
`java-static Int`	`@C.PcmEncoding getPcmEncodingForType(type: Int, bitsPerSample: Int)` Returns the `C.PcmEncoding` for the given WAVE format type value, or `ENCODING_INVALID` if the type is not a known PCM type.
`java-static Int`	`getTypeForPcmEncoding(@C.PcmEncoding pcmEncoding: Int)` Returns the WAVE format type value for the given `C.PcmEncoding`.
`java-static Boolean`	`isChannelMaskValid(channelMask: Int, channelCount: Int)` Checks whether the given Microsoft WAVE channel mask is valid and matches the channel count.
`java-static Int`	`mapToAudioFormatChannelMask(wavChannelMask: Int)` Maps the given Microsoft WAVE channel mask to the corresponding Android `android.media.AudioFormat` channel mask.

const val DATA_FOURCC = 1684108385: Int

Four character code for "data".

const val DS64_FOURCC = 1685272116: Int

Four character code for "ds64".

const val FACT_FOURCC = 1717658484: Int

Four character code for "fact".

const val FMT_FOURCC = 1718449184: Int

Four character code for "fmt ".

const val RF64_FOURCC = 1380333108: Int

Four character code for "RF64".

const val RIFF_FOURCC = 1380533830: Int

Four character code for "RIFF".

const val TYPE_ALAW = 6: Int

WAVE type value for 8-bit ITU-T G.711 A-law audio data.

const val TYPE_FLOAT = 3: Int

WAVE type value for float PCM audio data.

const val TYPE_IMA_ADPCM = 17: Int

WAVE type value for IMA ADPCM audio data.

const val TYPE_MLAW = 7: Int

WAVE type value for 8-bit ITU-T G.711 mu-law audio data.

const val TYPE_PCM = 1: Int

WAVE type value for integer PCM audio data.

const val TYPE_WAVE_FORMAT_EXTENSIBLE = 65534: Int

WAVE type value for extended WAVE format.

const val WAVE_FOURCC = 1463899717: Int

Four character code for "WAVE".

@C.PcmEncoding
java-static fun getPcmEncodingForType(type: Int, bitsPerSample: Int): Int

Returns the C.PcmEncoding for the given WAVE format type value, or ENCODING_INVALID if the type is not a known PCM type.

java-static fun getTypeForPcmEncoding(@C.PcmEncoding pcmEncoding: Int): Int

Returns the WAVE format type value for the given C.PcmEncoding.

Parameters
`@C.PcmEncoding pcmEncoding: Int`	The `C.PcmEncoding` value.

Returns
`Int`	The corresponding WAVE format type.

Throws
`java.lang.IllegalArgumentException`	If `pcmEncoding` is not a `C.PcmEncoding`, or if it's `ENCODING_INVALID` or `NO_VALUE`.

java-static fun isChannelMaskValid(channelMask: Int, channelCount: Int): Boolean

Checks whether the given Microsoft WAVE channel mask is valid and matches the channel count.

Parameters
`channelMask: Int`	The WAVE channel mask.
`channelCount: Int`	The number of channels.

Returns
`Boolean`	Whether the channel mask is valid.

java-static fun mapToAudioFormatChannelMask(wavChannelMask: Int): Int

Maps the given Microsoft WAVE channel mask to the corresponding Android android.media.AudioFormat channel mask.

Parameters
`wavChannelMask: Int`	The WAVE channel mask.

Returns
`Int`	The mapped `android.media.AudioFormat` channel mask, or `NO_VALUE` if the channel mask is unknown or not applicable (such as for Ambisonics).