private void writeSdtaChunk(RIFFWriter writer) throws IOException {
byte[] pad = new byte[32];
RIFFWriter smpl_chunk = writer.writeChunk("smpl");
for (SF2Sample sample : samples) {
ModelByteBuffer data = sample.getDataBuffer();
data.writeTo(smpl_chunk);
/*
smpl_chunk.write(data.array(),
data.arrayOffset(),
data.capacity());
*/
smpl_chunk.write(pad);
smpl_chunk.write(pad);
}
if (major < 2) return;
if (major == 2 && minor < 4) return;
for (SF2Sample sample : samples) {
ModelByteBuffer data24 = sample.getData24Buffer();
if (data24 == null) return;
}
RIFFWriter sm24_chunk = writer.writeChunk("sm24");
for (SF2Sample sample : samples) {
ModelByteBuffer data = sample.getData24Buffer();
data.writeTo(sm24_chunk);
/*
sm24_chunk.write(data.array(),
data.arrayOffset(),
data.capacity());*/
smpl_chunk.write(pad);
}
}
public int write(AudioInputStream stream, Type fileType, File out) throws IOException {
checkFormat(fileType, stream);
if (stream.getFormat().isBigEndian()) stream = toLittleEndian(stream);
RIFFWriter writer = new RIFFWriter(out, "WAVE");
write(stream, writer);
int fpointer = (int) writer.getFilePointer();
writer.close();
return fpointer;
}
private void writeModulators(RIFFWriter writer, List<SF2Modulator> modulators)
throws IOException {
for (SF2Modulator modulator : modulators) {
writer.writeUnsignedShort(modulator.sourceOperator);
writer.writeUnsignedShort(modulator.destinationOperator);
writer.writeShort(modulator.amount);
writer.writeUnsignedShort(modulator.amountSourceOperator);
writer.writeUnsignedShort(modulator.transportOperator);
}
}
private void writeInfoStringChunk(RIFFWriter writer, String name, String value)
throws IOException {
if (value == null) return;
RIFFWriter chunk = writer.writeChunk(name);
chunk.writeString(value);
int len = value.getBytes("ascii").length;
chunk.write(0);
len++;
if (len % 2 != 0) chunk.write(0);
}
public static void main(String[] args) throws Exception {
RIFFWriter writer = null;
RIFFReader reader = null;
File tempfile = File.createTempFile("test", ".riff");
try {
writer = new RIFFWriter(tempfile, "TEST");
RIFFWriter chunk = writer.writeChunk("TSCH");
chunk.writeByte((byte) 33);
writer.close();
writer = null;
FileInputStream fis = new FileInputStream(tempfile);
reader = new RIFFReader(fis);
assertEquals(reader.getFormat(), "RIFF");
assertEquals(reader.getType(), "TEST");
RIFFReader readchunk = reader.nextChunk();
assertEquals(readchunk.getFormat(), "TSCH");
assertEquals((int) reader.readByte(), 33);
fis.close();
reader = null;
} finally {
if (writer != null) writer.close();
if (reader != null) reader.close();
if (tempfile.exists()) if (!tempfile.delete()) tempfile.deleteOnExit();
}
}
private void writeGenerators(RIFFWriter writer, Map<Integer, Short> generators)
throws IOException {
Short keyrange = (Short) generators.get(SF2Region.GENERATOR_KEYRANGE);
Short velrange = (Short) generators.get(SF2Region.GENERATOR_VELRANGE);
if (keyrange != null) {
writer.writeUnsignedShort(SF2Region.GENERATOR_KEYRANGE);
writer.writeShort(keyrange);
}
if (velrange != null) {
writer.writeUnsignedShort(SF2Region.GENERATOR_VELRANGE);
writer.writeShort(velrange);
}
for (Map.Entry<Integer, Short> generator : generators.entrySet()) {
if (generator.getKey() == SF2Region.GENERATOR_KEYRANGE) continue;
if (generator.getKey() == SF2Region.GENERATOR_VELRANGE) continue;
writer.writeUnsignedShort(generator.getKey());
writer.writeShort(generator.getValue());
}
}
private void writeInfo(RIFFWriter writer) throws IOException {
if (this.targetEngine == null) this.targetEngine = "EMU8000";
if (this.name == null) this.name = "";
RIFFWriter ifil_chunk = writer.writeChunk("ifil");
ifil_chunk.writeUnsignedShort(this.major);
ifil_chunk.writeUnsignedShort(this.minor);
writeInfoStringChunk(writer, "isng", this.targetEngine);
writeInfoStringChunk(writer, "INAM", this.name);
writeInfoStringChunk(writer, "irom", this.romName);
if (romVersionMajor != -1) {
RIFFWriter iver_chunk = writer.writeChunk("iver");
iver_chunk.writeUnsignedShort(this.romVersionMajor);
iver_chunk.writeUnsignedShort(this.romVersionMinor);
}
writeInfoStringChunk(writer, "ICRD", this.creationDate);
writeInfoStringChunk(writer, "IENG", this.engineers);
writeInfoStringChunk(writer, "IPRD", this.product);
writeInfoStringChunk(writer, "ICOP", this.copyright);
writeInfoStringChunk(writer, "ICMT", this.comments);
writeInfoStringChunk(writer, "ISFT", this.tools);
writer.close();
}
private void writePdtaChunk(RIFFWriter writer) throws IOException {
RIFFWriter phdr_chunk = writer.writeChunk("phdr");
int phdr_zone_count = 0;
for (SF2Instrument preset : this.instruments) {
phdr_chunk.writeString(preset.name, 20);
phdr_chunk.writeUnsignedShort(preset.preset);
phdr_chunk.writeUnsignedShort(preset.bank);
phdr_chunk.writeUnsignedShort(phdr_zone_count);
if (preset.getGlobalRegion() != null) phdr_zone_count += 1;
phdr_zone_count += preset.getRegions().size();
phdr_chunk.writeUnsignedInt(preset.library);
phdr_chunk.writeUnsignedInt(preset.genre);
phdr_chunk.writeUnsignedInt(preset.morphology);
}
phdr_chunk.writeString("EOP", 20);
phdr_chunk.writeUnsignedShort(0);
phdr_chunk.writeUnsignedShort(0);
phdr_chunk.writeUnsignedShort(phdr_zone_count);
phdr_chunk.writeUnsignedInt(0);
phdr_chunk.writeUnsignedInt(0);
phdr_chunk.writeUnsignedInt(0);
RIFFWriter pbag_chunk = writer.writeChunk("pbag");
int pbag_gencount = 0;
int pbag_modcount = 0;
for (SF2Instrument preset : this.instruments) {
if (preset.getGlobalRegion() != null) {
pbag_chunk.writeUnsignedShort(pbag_gencount);
pbag_chunk.writeUnsignedShort(pbag_modcount);
pbag_gencount += preset.getGlobalRegion().getGenerators().size();
pbag_modcount += preset.getGlobalRegion().getModulators().size();
}
for (SF2InstrumentRegion region : preset.getRegions()) {
pbag_chunk.writeUnsignedShort(pbag_gencount);
pbag_chunk.writeUnsignedShort(pbag_modcount);
if (layers.indexOf(region.layer) != -1) {
// One generator is used to reference to instrument record
pbag_gencount += 1;
}
pbag_gencount += region.getGenerators().size();
pbag_modcount += region.getModulators().size();
}
}
pbag_chunk.writeUnsignedShort(pbag_gencount);
pbag_chunk.writeUnsignedShort(pbag_modcount);
RIFFWriter pmod_chunk = writer.writeChunk("pmod");
for (SF2Instrument preset : this.instruments) {
if (preset.getGlobalRegion() != null) {
writeModulators(pmod_chunk, preset.getGlobalRegion().getModulators());
}
for (SF2InstrumentRegion region : preset.getRegions())
writeModulators(pmod_chunk, region.getModulators());
}
pmod_chunk.write(new byte[10]);
RIFFWriter pgen_chunk = writer.writeChunk("pgen");
for (SF2Instrument preset : this.instruments) {
if (preset.getGlobalRegion() != null) {
writeGenerators(pgen_chunk, preset.getGlobalRegion().getGenerators());
}
for (SF2InstrumentRegion region : preset.getRegions()) {
writeGenerators(pgen_chunk, region.getGenerators());
int ix = (int) layers.indexOf(region.layer);
if (ix != -1) {
pgen_chunk.writeUnsignedShort(SF2Region.GENERATOR_INSTRUMENT);
pgen_chunk.writeShort((short) ix);
}
}
}
pgen_chunk.write(new byte[4]);
RIFFWriter inst_chunk = writer.writeChunk("inst");
int inst_zone_count = 0;
for (SF2Layer instrument : this.layers) {
inst_chunk.writeString(instrument.name, 20);
inst_chunk.writeUnsignedShort(inst_zone_count);
if (instrument.getGlobalRegion() != null) inst_zone_count += 1;
inst_zone_count += instrument.getRegions().size();
}
inst_chunk.writeString("EOI", 20);
inst_chunk.writeUnsignedShort(inst_zone_count);
RIFFWriter ibag_chunk = writer.writeChunk("ibag");
int ibag_gencount = 0;
int ibag_modcount = 0;
for (SF2Layer instrument : this.layers) {
if (instrument.getGlobalRegion() != null) {
ibag_chunk.writeUnsignedShort(ibag_gencount);
ibag_chunk.writeUnsignedShort(ibag_modcount);
ibag_gencount += instrument.getGlobalRegion().getGenerators().size();
ibag_modcount += instrument.getGlobalRegion().getModulators().size();
}
for (SF2LayerRegion region : instrument.getRegions()) {
ibag_chunk.writeUnsignedShort(ibag_gencount);
ibag_chunk.writeUnsignedShort(ibag_modcount);
if (samples.indexOf(region.sample) != -1) {
// One generator is used to reference to instrument record
ibag_gencount += 1;
}
ibag_gencount += region.getGenerators().size();
ibag_modcount += region.getModulators().size();
}
}
ibag_chunk.writeUnsignedShort(ibag_gencount);
ibag_chunk.writeUnsignedShort(ibag_modcount);
RIFFWriter imod_chunk = writer.writeChunk("imod");
for (SF2Layer instrument : this.layers) {
if (instrument.getGlobalRegion() != null) {
writeModulators(imod_chunk, instrument.getGlobalRegion().getModulators());
}
for (SF2LayerRegion region : instrument.getRegions())
writeModulators(imod_chunk, region.getModulators());
}
imod_chunk.write(new byte[10]);
RIFFWriter igen_chunk = writer.writeChunk("igen");
for (SF2Layer instrument : this.layers) {
if (instrument.getGlobalRegion() != null) {
writeGenerators(igen_chunk, instrument.getGlobalRegion().getGenerators());
}
for (SF2LayerRegion region : instrument.getRegions()) {
writeGenerators(igen_chunk, region.getGenerators());
int ix = samples.indexOf(region.sample);
if (ix != -1) {
igen_chunk.writeUnsignedShort(SF2Region.GENERATOR_SAMPLEID);
igen_chunk.writeShort((short) ix);
}
}
}
igen_chunk.write(new byte[4]);
RIFFWriter shdr_chunk = writer.writeChunk("shdr");
long sample_pos = 0;
for (SF2Sample sample : samples) {
shdr_chunk.writeString(sample.name, 20);
long start = sample_pos;
sample_pos += sample.data.capacity() / 2;
long end = sample_pos;
long startLoop = sample.startLoop + start;
long endLoop = sample.endLoop + start;
if (startLoop < start) startLoop = start;
if (endLoop > end) endLoop = end;
shdr_chunk.writeUnsignedInt(start);
shdr_chunk.writeUnsignedInt(end);
shdr_chunk.writeUnsignedInt(startLoop);
shdr_chunk.writeUnsignedInt(endLoop);
shdr_chunk.writeUnsignedInt(sample.sampleRate);
shdr_chunk.writeUnsignedByte(sample.originalPitch);
shdr_chunk.writeByte(sample.pitchCorrection);
shdr_chunk.writeUnsignedShort(sample.sampleLink);
shdr_chunk.writeUnsignedShort(sample.sampleType);
sample_pos += 32;
}
shdr_chunk.writeString("EOS", 20);
shdr_chunk.write(new byte[26]);
}
private void writeSoundbank(RIFFWriter writer) throws IOException {
writeInfo(writer.writeList("INFO"));
writeSdtaChunk(writer.writeList("sdta"));
writePdtaChunk(writer.writeList("pdta"));
writer.close();
}
public void write(AudioInputStream stream, RIFFWriter writer) throws IOException {
RIFFWriter fmt_chunk = writer.writeChunk("fmt ");
AudioFormat format = stream.getFormat();
fmt_chunk.writeUnsignedShort(3); // WAVE_FORMAT_IEEE_FLOAT
fmt_chunk.writeUnsignedShort(format.getChannels());
fmt_chunk.writeUnsignedInt((int) format.getSampleRate());
fmt_chunk.writeUnsignedInt(((int) format.getFrameRate()) * format.getFrameSize());
fmt_chunk.writeUnsignedShort(format.getFrameSize());
fmt_chunk.writeUnsignedShort(format.getSampleSizeInBits());
fmt_chunk.close();
RIFFWriter data_chunk = writer.writeChunk("data");
byte[] buff = new byte[1024];
int len;
while ((len = stream.read(buff, 0, buff.length)) != -1) data_chunk.write(buff, 0, len);
data_chunk.close();
}
