de.sciss.audiofile.impl.Wave64Header.scala Maven / Gradle / Ivy
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A library to read and write uncompressed audio files (AIFF, WAVE, etc.)
/*
* Wave64Header.java
* (AudioFile)
*
* Copyright (c) 2004-2021 Hanns Holger Rutz. All rights reserved.
*
* This software is published under the GNU Affero General Public License v3+
*
*
* For further information, please contact Hanns Holger Rutz at
* [email protected]
*/
package de.sciss.audiofile.impl
import java.io.{DataInput, DataInputStream, DataOutput, EOFException, IOException, RandomAccessFile}
import java.nio.{Buffer, ByteBuffer, ByteOrder}
import java.util.ConcurrentModificationException
import de.sciss.asyncfile.{AsyncReadableByteBuffer, AsyncReadableByteChannel, AsyncWritableByteChannel}
import de.sciss.audiofile.{AsyncWritableAudioFileHeader, AudioFileHeader, AudioFileSpec, AudioFileType, WritableAudioFileHeader}
import scala.concurrent.Future
/** The 64 bit version of Wave.
*
* Info: http://www.vcs.de/fileadmin/user_upload/MBS/PDF/Whitepaper/Informations_about_Sony_Wave64.pdf
* (link broken; now: http://www.ambisonia.com/Members/mleese/sony_wave64.pdf )
*/
private[audiofile] object Wave64Header extends AbstractRIFFHeader {
import AbstractRIFFHeader._
import de.sciss.audiofile.AudioFileHeader._
// private final val RIFF_MAGIC1a = 0x72696666 // 'riff' ; first 4 bytes of RIFF-GUID in big endian notation
// private final val RIFF_MAGIC1b = 0x2E91CF11 // next 2 shorts of RIFF-GUID in big endian notation
private final val RIFF_MAGIC1 = 0x726966662E91CF11L // RIFF-GUID in big endian notation
private final val RIFF_MAGIC2 = 0xA5D628DB04C10000L // ...
private final val WAVE_MAGIC1 = 0x77617665F3ACD311L // WAVE-GUID in big endian notation
private final val WAVE_MAGIC2 = 0x8CD100C04F8EDB8AL // ...
// chunk identifiers
private final val FMT_MAGIC1 = 0x666D7420F3ACD311L // 'fmt ' GUID in big endian notation
private final val FMT_MAGIC1_LE = 0x11D3ACF320746D66L // 'fmt ' GUID in little endian notation
private final val FMT_MAGIC2 = 0x8CD100C04F8EDB8AL
private final val FMT_MAGIC2_LE = 0x8ADB8E4FC000D18CL
private final val DATA_MAGIC1 = 0x64617461F3ACD311L // 'data' GUID in big endian notation
private final val DATA_MAGIC1_LE = 0x11D3ACF361746164L // 'data' GUID in little endian notation
private final val DATA_MAGIC2 = 0x8CD100C04F8EDB8AL
private final val DATA_MAGIC2_LE = 0x8ADB8E4FC000D18CL
private final val FACT_MAGIC1 = 0x66616374F3ACD311L // 'fact' GUID in big endian notation
private final val FACT_MAGIC2 = 0x8CD100C04F8EDB8AL
@throws(classOf[IOException])
def identify(dis: DataInputStream): Boolean = dis.readLong() == RIFF_MAGIC1 && dis.readLong() == RIFF_MAGIC2 && {
dis.skipBytes(8) // length
dis.readLong() == WAVE_MAGIC1 && dis.readLong() == WAVE_MAGIC2
}
@throws(classOf[IOException])
protected def readDataInput(din: DataInput): AudioFileHeader = {
val riffMagic1 = din.readLong() // 8
val riffMagic2 = din.readLong() // 16
if (riffMagic1 != RIFF_MAGIC1 || riffMagic2 != RIFF_MAGIC2) {
formatError(s"Not RIFF magic: 0x${riffMagic1.toHexString}, 0x${riffMagic2.toHexString}")
}
din.skipBytes(8) // len = readLittleLong // 24
val waveMagic1 = din.readLong() // 32
val waveMagic2 = din.readLong() // 40
if (waveMagic1 != WAVE_MAGIC1 || waveMagic2 != WAVE_MAGIC2) {
formatError(s"Not WAVE magic: 0x${waveMagic1.toHexString}, 0x${waveMagic2.toHexString}")
}
var chunkRem = 0L
var fc: FormatChunk = null
try {
while (true) {
while (chunkRem > 0) {
val skp = math.min(chunkRem, 0x7FFFFFFF).toInt
din.skipBytes(skp)
chunkRem -= skp
}
val magic1 = din.readLong()
val magic2 = din.readLong()
val chunkLen = readLittleLong(din) - 24 // minus 16-bytes magic and 8-bytes length
chunkRem = (chunkLen + 7) & 0xFFFFFFFFFFFFFFF8L
if (magic1 == FMT_MAGIC1 && magic2 == FMT_MAGIC2) {
fc = readFormatChunk(din, chunkRem.toInt)
chunkRem = fc.chunkSkip
} else if (magic1 == DATA_MAGIC1 && magic2 == DATA_MAGIC2) {
return createReader(fc, AudioFileType.Wave64, chunkLen)
// } else if( magic1 == MARKER_MAGIC1 && magic2 == MARKER_MAGIC2 ) {
// markersOffset = raf.getFilePointer()
}
}
} catch {
case _: EOFException =>
}
throw new IOException(s"${AudioFileType.Wave64.name} header misses data chunk")
}
def readAsync(ch: AsyncReadableByteChannel): Future[AudioFileHeader] = {
val ab = new AsyncReadableByteBuffer(ch)
import ab._
ensure(40).flatMap { _ =>
val riffMagic1 = buffer.getLong() // 8
val riffMagic2 = buffer.getLong() // 16
if (riffMagic1 != RIFF_MAGIC1 || riffMagic2 != RIFF_MAGIC2) {
formatError(s"Not RIFF magic: 0x${riffMagic1.toHexString}, 0x${riffMagic2.toHexString}")
}
skip(8) // len = readLittleLong // 24
val waveMagic1 = buffer.getLong() // 32
val waveMagic2 = buffer.getLong() // 40
if (waveMagic1 != WAVE_MAGIC1 || waveMagic2 != WAVE_MAGIC2) {
formatError(s"Not WAVE magic: 0x${waveMagic1.toHexString}, 0x${waveMagic2.toHexString}")
}
buffer.order(ByteOrder.LITTLE_ENDIAN)
def readChunk(fc: FormatChunk): Future[AudioFileHeader] =
ensure(24).flatMap { _ =>
val magic1Le = buffer.getLong() // 8
val magic2Le = buffer.getLong() // 16
val chunkLen = buffer.getLong() - 24 // minus 16-bytes magic and 8-bytes length // 24
val chunkRem = (chunkLen + 7) & 0xFFFFFFFFFFFFFFF8L
if (magic1Le == FMT_MAGIC1_LE && magic2Le == FMT_MAGIC2_LE) {
val fcFut = readFormatChunkAsync(ab, chunkRem.toInt)
fcFut.flatMap { fc1 =>
val chunkRem1 = fc1.chunkSkip
skip(chunkRem1)
readChunk(fc1)
}
} else if (magic1Le == DATA_MAGIC1_LE && magic2Le == DATA_MAGIC2_LE) {
purge()
if (fc != null) {
val afh = createReader(fc, AudioFileType.Wave64, chunkLen)
Future.successful(afh)
} else {
Future.failed(new IOException("Wave64 header misses FMT chunk"))
}
} else { // ignore unknown chunks
skip(chunkRem)
readChunk(fc)
}
}
readChunk(null)
}
}
final protected def createWriter(raf: RandomAccessFile, spec: AudioFileSpec, factSmpNumOffset: Long,
dataChunkLenOff: Long): WritableAudioFileHeader =
new WritableFileHeader(raf, spec, factSmpNumOffset = factSmpNumOffset, dataChunkLenOff = dataChunkLenOff)
final protected def createAsyncWriter(ch: AsyncWritableByteChannel, spec: AudioFileSpec, factSmpNumOffset: Long,
dataChunkLenOff: Long): AsyncWritableAudioFileHeader =
new AsyncWritableFileHeader(ch, spec, factSmpNumOffset = factSmpNumOffset, dataChunkLenOff = dataChunkLenOff)
final protected def writeRiffMagic(dout: DataOutput, fileSize: Long): Unit = {
dout.writeLong(RIFF_MAGIC1)
dout.writeLong(RIFF_MAGIC2)
dout.writeLong(fileSize) // total size (including cookie chunk header!)
dout.writeLong(WAVE_MAGIC1)
dout.writeLong(WAVE_MAGIC2)
}
final protected def writeFmtMagic(dout: DataOutput, fmtChunkSize: Int): Unit = {
dout.writeLong(FMT_MAGIC1)
dout.writeLong(FMT_MAGIC2)
writeLittleLong(dout, fmtChunkSize)
}
final protected def writeFactChunk(dout: DataOutput, numFrames: Long): Unit = {
dout.writeLong(FACT_MAGIC1)
dout.writeLong(FACT_MAGIC2)
writeLittleLong(dout, 32)
dout.writeLong(numFrames)
}
final protected def writeDataMagic(dout: DataOutput, dataChunkSize: Long): Unit = {
dout.writeLong(DATA_MAGIC1)
dout.writeLong(DATA_MAGIC2)
writeLittleLong(dout, dataChunkSize)
}
final protected val cookieSize = 16
final protected val chunkLenSize = 8
final protected val chunkPad = 8
final private class WritableFileHeader(raf: RandomAccessFile, val spec: AudioFileSpec,
factSmpNumOffset: Long, dataChunkLenOff: Long)
extends WritableAudioFileHeader {
private var numFrames0 = 0L
@throws(classOf[IOException])
def update(numFrames: Long): Unit = {
if (numFrames == numFrames0) return
val oldPos = raf.getFilePointer
val fileSize = raf.length()
raf.seek(cookieSize)
writeLittleLong(raf, fileSize)
if (factSmpNumOffset != 0L) {
raf.seek(factSmpNumOffset)
writeLittleLong(raf, numFrames)
}
raf.seek(dataChunkLenOff)
val dataChunkSize = fileSize - (dataChunkLenOff - cookieSize)
writeLittleLong(raf, dataChunkSize)
raf.seek(oldPos)
numFrames0 = numFrames
}
def byteOrder: ByteOrder = spec.byteOrder.get
}
final private class AsyncWritableFileHeader(ch: AsyncWritableByteChannel, val spec: AudioFileSpec,
factSmpNumOffset: Long, dataChunkLenOff: Long)
extends AsyncWritableAudioFileHeader {
private[this] val sync = new AnyRef
private[this] var numFramesRef = 0L
private[this] val bb = ByteBuffer.allocate(8).order(byteOrder)
def updateAsync(numFrames: Long): Future[Unit] = {
import ch.fileSystem.executionContext
val oldNumFr = sync.synchronized { numFramesRef }
if (numFrames == oldNumFr) return Future.unit
val oldPos = ch.position
val fileSize = ch.size
ch.position_=(cookieSize)
(bb: Buffer).clear()
bb.putLong(0, fileSize)
ch.write(bb).flatMap { _ =>
val futFact = if (factSmpNumOffset == 0L) Future.unit else {
ch.position_=(factSmpNumOffset)
(bb: Buffer).clear()
bb.putLong(0, numFrames)
ch.write(bb)
}
futFact.flatMap { _ =>
ch.position_=(dataChunkLenOff)
val dataChunkSize = fileSize - (dataChunkLenOff - cookieSize)
(bb: Buffer).clear()
bb.putLong(0, dataChunkSize)
ch.write(bb).map { _ =>
ch.position_=(oldPos)
sync.synchronized {
if (numFramesRef != oldNumFr) throw new ConcurrentModificationException
numFramesRef = numFrames
}
()
}
}
}
}
def byteOrder: ByteOrder = spec.byteOrder.get
}
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