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); } }
static void setUp() throws Exception { testarray = new float[1024]; for (int i = 0; i < 1024; i++) { double ii = i / 1024.0; ii = ii * ii; testarray[i] = (float) Math.sin(10 * ii * 2 * Math.PI); testarray[i] += (float) Math.sin(1.731 + 2 * ii * 2 * Math.PI); testarray[i] += (float) Math.sin(0.231 + 6.3 * ii * 2 * Math.PI); testarray[i] *= 0.3; } test_byte_array = new byte[testarray.length * 2]; AudioFloatConverter.getConverter(format).toByteArray(testarray, test_byte_array); buffer = new ModelByteBuffer(test_byte_array); byte[] test_byte_array2 = new byte[testarray.length * 3]; buffer24 = new ModelByteBuffer(test_byte_array2); test_byte_array_8ext = new byte[testarray.length]; byte[] test_byte_array_8_16 = new byte[testarray.length * 2]; AudioFloatConverter.getConverter(format24).toByteArray(testarray, test_byte_array2); int ix = 0; int x = 0; for (int i = 0; i < test_byte_array_8ext.length; i++) { test_byte_array_8ext[i] = test_byte_array2[ix++]; test_byte_array_8_16[x++] = test_byte_array2[ix++]; test_byte_array_8_16[x++] = test_byte_array2[ix++]; } buffer16_8 = new ModelByteBuffer(test_byte_array_8_16); buffer8 = new ModelByteBuffer(test_byte_array_8ext); AudioInputStream ais = new AudioInputStream(buffer.getInputStream(), format, testarray.length); ByteArrayOutputStream baos = new ByteArrayOutputStream(); AudioSystem.write(ais, AudioFileFormat.Type.WAVE, baos); buffer_wave = new ModelByteBuffer(baos.toByteArray()); }
public static void main(String[] args) throws Exception { try { setUp(); ModelByteBuffer buff = new ModelByteBuffer(test_file); List<ModelByteBuffer> col = new ArrayList<ModelByteBuffer>(); col.add(buff); ModelByteBuffer.loadAll(col); if (buff.array() == null) throw new RuntimeException("buf is null!"); if (buff.array().length != test_byte_array.length) throw new RuntimeException("buff.array().length length is incorrect!"); byte[] b = buff.array(); for (int i = 0; i < b.length; i++) if (test_byte_array[i] != b[i]) throw new RuntimeException("buff.array() incorrect!"); } finally { tearDown(); } }
private void readPdtaChunk(RIFFReader riff) throws IOException { List<SF2Instrument> presets = new ArrayList<SF2Instrument>(); List<Integer> presets_bagNdx = new ArrayList<Integer>(); List<SF2InstrumentRegion> presets_splits_gen = new ArrayList<SF2InstrumentRegion>(); List<SF2InstrumentRegion> presets_splits_mod = new ArrayList<SF2InstrumentRegion>(); List<SF2Layer> instruments = new ArrayList<SF2Layer>(); List<Integer> instruments_bagNdx = new ArrayList<Integer>(); List<SF2LayerRegion> instruments_splits_gen = new ArrayList<SF2LayerRegion>(); List<SF2LayerRegion> instruments_splits_mod = new ArrayList<SF2LayerRegion>(); while (riff.hasNextChunk()) { RIFFReader chunk = riff.nextChunk(); String format = chunk.getFormat(); if (format.equals("phdr")) { // Preset Header / Instrument if (chunk.available() % 38 != 0) throw new RIFFInvalidDataException(); int count = chunk.available() / 38; for (int i = 0; i < count; i++) { SF2Instrument preset = new SF2Instrument(this); preset.name = chunk.readString(20); preset.preset = chunk.readUnsignedShort(); preset.bank = chunk.readUnsignedShort(); presets_bagNdx.add(chunk.readUnsignedShort()); preset.library = chunk.readUnsignedInt(); preset.genre = chunk.readUnsignedInt(); preset.morphology = chunk.readUnsignedInt(); presets.add(preset); if (i != count - 1) this.instruments.add(preset); } } else if (format.equals("pbag")) { // Preset Zones / Instruments splits if (chunk.available() % 4 != 0) throw new RIFFInvalidDataException(); int count = chunk.available() / 4; // Skip first record { int gencount = chunk.readUnsignedShort(); int modcount = chunk.readUnsignedShort(); while (presets_splits_gen.size() < gencount) presets_splits_gen.add(null); while (presets_splits_mod.size() < modcount) presets_splits_mod.add(null); count--; } int offset = presets_bagNdx.get(0); // Offset should be 0 (but just case) for (int i = 0; i < offset; i++) { if (count == 0) throw new RIFFInvalidDataException(); int gencount = chunk.readUnsignedShort(); int modcount = chunk.readUnsignedShort(); while (presets_splits_gen.size() < gencount) presets_splits_gen.add(null); while (presets_splits_mod.size() < modcount) presets_splits_mod.add(null); count--; } for (int i = 0; i < presets_bagNdx.size() - 1; i++) { int zone_count = presets_bagNdx.get(i + 1) - presets_bagNdx.get(i); SF2Instrument preset = presets.get(i); for (int ii = 0; ii < zone_count; ii++) { if (count == 0) throw new RIFFInvalidDataException(); int gencount = chunk.readUnsignedShort(); int modcount = chunk.readUnsignedShort(); SF2InstrumentRegion split = new SF2InstrumentRegion(); preset.regions.add(split); while (presets_splits_gen.size() < gencount) presets_splits_gen.add(split); while (presets_splits_mod.size() < modcount) presets_splits_mod.add(split); count--; } } } else if (format.equals("pmod")) { // Preset Modulators / Split Modulators for (int i = 0; i < presets_splits_mod.size(); i++) { SF2Modulator modulator = new SF2Modulator(); modulator.sourceOperator = chunk.readUnsignedShort(); modulator.destinationOperator = chunk.readUnsignedShort(); modulator.amount = chunk.readShort(); modulator.amountSourceOperator = chunk.readUnsignedShort(); modulator.transportOperator = chunk.readUnsignedShort(); SF2InstrumentRegion split = presets_splits_mod.get(i); if (split != null) split.modulators.add(modulator); } } else if (format.equals("pgen")) { // Preset Generators / Split Generators for (int i = 0; i < presets_splits_gen.size(); i++) { int operator = chunk.readUnsignedShort(); short amount = chunk.readShort(); SF2InstrumentRegion split = presets_splits_gen.get(i); if (split != null) split.generators.put(operator, amount); } } else if (format.equals("inst")) { // Instrument Header / Layers if (chunk.available() % 22 != 0) throw new RIFFInvalidDataException(); int count = chunk.available() / 22; for (int i = 0; i < count; i++) { SF2Layer layer = new SF2Layer(this); layer.name = chunk.readString(20); instruments_bagNdx.add(chunk.readUnsignedShort()); instruments.add(layer); if (i != count - 1) this.layers.add(layer); } } else if (format.equals("ibag")) { // Instrument Zones / Layer splits if (chunk.available() % 4 != 0) throw new RIFFInvalidDataException(); int count = chunk.available() / 4; // Skip first record { int gencount = chunk.readUnsignedShort(); int modcount = chunk.readUnsignedShort(); while (instruments_splits_gen.size() < gencount) instruments_splits_gen.add(null); while (instruments_splits_mod.size() < modcount) instruments_splits_mod.add(null); count--; } int offset = instruments_bagNdx.get(0); // Offset should be 0 (but just case) for (int i = 0; i < offset; i++) { if (count == 0) throw new RIFFInvalidDataException(); int gencount = chunk.readUnsignedShort(); int modcount = chunk.readUnsignedShort(); while (instruments_splits_gen.size() < gencount) instruments_splits_gen.add(null); while (instruments_splits_mod.size() < modcount) instruments_splits_mod.add(null); count--; } for (int i = 0; i < instruments_bagNdx.size() - 1; i++) { int zone_count = instruments_bagNdx.get(i + 1) - instruments_bagNdx.get(i); SF2Layer layer = layers.get(i); for (int ii = 0; ii < zone_count; ii++) { if (count == 0) throw new RIFFInvalidDataException(); int gencount = chunk.readUnsignedShort(); int modcount = chunk.readUnsignedShort(); SF2LayerRegion split = new SF2LayerRegion(); layer.regions.add(split); while (instruments_splits_gen.size() < gencount) instruments_splits_gen.add(split); while (instruments_splits_mod.size() < modcount) instruments_splits_mod.add(split); count--; } } } else if (format.equals("imod")) { // Instrument Modulators / Split Modulators for (int i = 0; i < instruments_splits_mod.size(); i++) { SF2Modulator modulator = new SF2Modulator(); modulator.sourceOperator = chunk.readUnsignedShort(); modulator.destinationOperator = chunk.readUnsignedShort(); modulator.amount = chunk.readShort(); modulator.amountSourceOperator = chunk.readUnsignedShort(); modulator.transportOperator = chunk.readUnsignedShort(); SF2LayerRegion split = instruments_splits_gen.get(i); if (split != null) split.modulators.add(modulator); } } else if (format.equals("igen")) { // Instrument Generators / Split Generators for (int i = 0; i < instruments_splits_gen.size(); i++) { int operator = chunk.readUnsignedShort(); short amount = chunk.readShort(); SF2LayerRegion split = instruments_splits_gen.get(i); if (split != null) split.generators.put(operator, amount); } } else if (format.equals("shdr")) { // Sample Headers if (chunk.available() % 46 != 0) throw new RIFFInvalidDataException(); int count = chunk.available() / 46; for (int i = 0; i < count; i++) { SF2Sample sample = new SF2Sample(this); sample.name = chunk.readString(20); long start = chunk.readUnsignedInt(); long end = chunk.readUnsignedInt(); sample.data = sampleData.subbuffer(start * 2, end * 2, true); if (sampleData24 != null) sample.data24 = sampleData24.subbuffer(start, end, true); /* sample.data = new ModelByteBuffer(sampleData, (int)(start*2), (int)((end - start)*2)); if (sampleData24 != null) sample.data24 = new ModelByteBuffer(sampleData24, (int)start, (int)(end - start)); */ sample.startLoop = chunk.readUnsignedInt() - start; sample.endLoop = chunk.readUnsignedInt() - start; if (sample.startLoop < 0) sample.startLoop = -1; if (sample.endLoop < 0) sample.endLoop = -1; sample.sampleRate = chunk.readUnsignedInt(); sample.originalPitch = chunk.readUnsignedByte(); sample.pitchCorrection = chunk.readByte(); sample.sampleLink = chunk.readUnsignedShort(); sample.sampleType = chunk.readUnsignedShort(); if (i != count - 1) this.samples.add(sample); } } } Iterator<SF2Layer> liter = this.layers.iterator(); while (liter.hasNext()) { SF2Layer layer = liter.next(); Iterator<SF2LayerRegion> siter = layer.regions.iterator(); SF2Region globalsplit = null; while (siter.hasNext()) { SF2LayerRegion split = siter.next(); if (split.generators.get(SF2LayerRegion.GENERATOR_SAMPLEID) != null) { int sampleid = split.generators.get(SF2LayerRegion.GENERATOR_SAMPLEID); split.generators.remove(SF2LayerRegion.GENERATOR_SAMPLEID); split.sample = samples.get(sampleid); } else { globalsplit = split; } } if (globalsplit != null) { layer.getRegions().remove(globalsplit); SF2GlobalRegion gsplit = new SF2GlobalRegion(); gsplit.generators = globalsplit.generators; gsplit.modulators = globalsplit.modulators; layer.setGlobalZone(gsplit); } } Iterator<SF2Instrument> iiter = this.instruments.iterator(); while (iiter.hasNext()) { SF2Instrument instrument = iiter.next(); Iterator<SF2InstrumentRegion> siter = instrument.regions.iterator(); SF2Region globalsplit = null; while (siter.hasNext()) { SF2InstrumentRegion split = siter.next(); if (split.generators.get(SF2LayerRegion.GENERATOR_INSTRUMENT) != null) { int instrumentid = split.generators.get(SF2InstrumentRegion.GENERATOR_INSTRUMENT); split.generators.remove(SF2LayerRegion.GENERATOR_INSTRUMENT); split.layer = layers.get(instrumentid); } else { globalsplit = split; } } if (globalsplit != null) { instrument.getRegions().remove(globalsplit); SF2GlobalRegion gsplit = new SF2GlobalRegion(); gsplit.generators = globalsplit.generators; gsplit.modulators = globalsplit.modulators; instrument.setGlobalZone(gsplit); } } }