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#include "OoTAudioSampleWriter.h"
#include "spdlog/spdlog.h"
#include "Companion.h"
#include <iomanip>
#include <sstream>
namespace OoT {
std::map<int, std::map<int, std::string>> AudioSampleWriter::ParseSampleNames(YAML::Node& node) {
std::map<int, std::map<int, std::string>> sampleNames;
if (node["samples"] && node["samples"].IsSequence()) {
auto samplesNode = node["samples"];
for (size_t i = 0; i < samplesNode.size(); i++) {
auto bankNode = samplesNode[i];
int bank = bankNode["bank"].as<int>();
if (bankNode["entries"] && bankNode["entries"].IsSequence()) {
auto entries = bankNode["entries"];
for (size_t j = 0; j < entries.size(); j++) {
auto e = entries[j];
sampleNames[bank][e["offset"].as<int>()] = e["name"].as<std::string>();
}
}
}
}
return sampleNames;
}
void AudioSampleWriter::ParseSample(int bankIndex, uint32_t sampleAddr, uint32_t baseOffset, AudioParseContext& ctx) {
if (sampleAddr + 16 > ctx.audioBank.Size()) return;
uint32_t dataRelPtr = ctx.audioBank.ReadU32(sampleAddr + 4);
uint32_t sampleDataOffset = dataRelPtr + ctx.sampleBankTable[bankIndex].ptr;
if (ctx.sampleMap.count(sampleDataOffset)) return;
SampleInfo s;
uint32_t origField = ctx.audioBank.ReadU32(sampleAddr);
s.codec = (origField >> 28) & 0x0F;
s.medium = (origField >> 24) & 0x03;
s.unk_bit26 = (origField >> 22) & 0x01;
s.unk_bit25 = (origField >> 21) & 0x01;
s.dataSize = origField & 0x00FFFFFF;
s.dataOffset = sampleDataOffset;
uint32_t loopAddr = ctx.audioBank.ReadU32(sampleAddr + 8) + baseOffset;
uint32_t bookAddr = ctx.audioBank.ReadU32(sampleAddr + 12) + baseOffset;
if (loopAddr + 12 <= ctx.audioBank.Size()) {
s.loopStart = (int32_t)ctx.audioBank.ReadU32(loopAddr);
s.loopEnd = (int32_t)ctx.audioBank.ReadU32(loopAddr + 4);
s.loopCount = (int32_t)ctx.audioBank.ReadU32(loopAddr + 8);
if (s.loopCount != 0 && loopAddr + 48 <= ctx.audioBank.Size()) {
for (int i = 0; i < 16; i++) {
s.loopStates.push_back(ctx.audioBank.ReadS16(loopAddr + 16 + i * 2));
}
}
}
if (bookAddr + 8 <= ctx.audioBank.Size()) {
s.bookOrder = (int32_t)ctx.audioBank.ReadU32(bookAddr);
s.bookNpredictors = (int32_t)ctx.audioBank.ReadU32(bookAddr + 4);
int numBooks = s.bookOrder * s.bookNpredictors * 8;
if (bookAddr + 8 + numBooks * 2 <= ctx.audioBank.Size()) {
for (int i = 0; i < numBooks; i++) {
s.books.push_back(ctx.audioBank.ReadS16(bookAddr + 8 + i * 2));
}
}
}
// Resolve name from YAML (use absolute offset as key, matching ZAPDTR behavior)
if (ctx.sampleNames.count(bankIndex) && ctx.sampleNames[bankIndex].count((int)sampleDataOffset)) {
s.name = ctx.sampleNames[bankIndex][(int)sampleDataOffset];
} else {
std::ostringstream ss;
ss << "sample_" << bankIndex << "_" << std::setfill('0') << std::setw(8)
<< std::hex << std::uppercase << sampleDataOffset;
s.name = ss.str();
}
ctx.sampleMap[sampleDataOffset] = s;
}
void AudioSampleWriter::ParseSFESample(int bankIndex, uint32_t sfeAddr, uint32_t baseOffset, AudioParseContext& ctx) {
if (sfeAddr + 4 > ctx.audioBank.Size()) return;
uint32_t samplePtr = ctx.audioBank.ReadU32(sfeAddr);
if (samplePtr != 0) {
ParseSample(bankIndex, samplePtr + baseOffset, baseOffset, ctx);
}
}
void AudioSampleWriter::WriteCompanionFiles(const std::map<uint32_t, SampleInfo>& sampleMap,
const std::vector<uint8_t>& audioTable) {
for (auto& [offset, s] : sampleMap) {
LUS::BinaryWriter w;
BaseExporter::WriteHeader(w, Torch::ResourceType::OoTAudioSample, 2);
w.Write(s.codec);
w.Write(s.medium);
w.Write(s.unk_bit26);
w.Write(s.unk_bit25);
w.Write(static_cast<uint32_t>(s.dataSize));
if (s.dataOffset + s.dataSize <= audioTable.size()) {
w.Write((char*)(audioTable.data() + s.dataOffset), s.dataSize);
}
w.Write(static_cast<uint32_t>(s.loopStart));
w.Write(static_cast<uint32_t>(s.loopEnd));
w.Write(static_cast<uint32_t>(s.loopCount));
w.Write(static_cast<uint32_t>(s.loopStates.size()));
for (auto ls : s.loopStates) w.Write(ls);
w.Write(static_cast<uint32_t>(s.bookOrder));
w.Write(static_cast<uint32_t>(s.bookNpredictors));
w.Write(static_cast<uint32_t>(s.books.size()));
for (auto b : s.books) w.Write(b);
std::stringstream ss;
w.Finish(ss);
std::string str = ss.str();
Companion::Instance->RegisterCompanionFile(
"samples/" + s.name + "_META", std::vector<char>(str.begin(), str.end()));
}
SPDLOG_INFO("OoTAudioFactory: wrote {} sample companion files", sampleMap.size());
}
void AudioSampleWriter::DiscoverSamples(const std::vector<AudioTableEntry>& fontTable, AudioParseContext& ctx) {
for (uint32_t fi = 0; fi < fontTable.size(); fi++) {
auto& fe = fontTable[fi];
uint32_t ptr = fe.ptr;
int sampleBankId = (fe.data1 >> 8) & 0xFF;
int numInstruments = (fe.data2 >> 8) & 0xFF;
int numDrums = fe.data2 & 0xFF;
int numSfx = fe.data3;
if (ptr + 8 > ctx.audioBank.Size()) continue;
// Drums
uint32_t drumListAddr = ctx.audioBank.ReadU32(ptr) + ptr;
for (int i = 0; i < numDrums; i++) {
if (drumListAddr + (i + 1) * 4 > ctx.audioBank.Size()) break;
uint32_t drumPtr = ctx.audioBank.ReadU32(drumListAddr + i * 4);
if (drumPtr != 0) {
drumPtr += ptr;
if (drumPtr + 8 > ctx.audioBank.Size()) continue;
uint32_t sampleEntryPtr = ctx.audioBank.ReadU32(drumPtr + 4) + ptr;
ParseSample(sampleBankId, sampleEntryPtr, ptr, ctx);
}
}
// SFX
uint32_t sfxListAddr = ctx.audioBank.ReadU32(ptr + 4) + ptr;
for (int i = 0; i < numSfx; i++) {
if (sfxListAddr + (i + 1) * 8 > ctx.audioBank.Size()) break;
ParseSFESample(sampleBankId, sfxListAddr + i * 8, ptr, ctx);
}
// Instruments
for (int i = 0; i < numInstruments; i++) {
if (ptr + 8 + (i + 1) * 4 > ctx.audioBank.Size()) break;
uint32_t instPtr = ctx.audioBank.ReadU32(ptr + 8 + i * 4);
if (instPtr != 0) {
instPtr += ptr;
if (instPtr + 28 > ctx.audioBank.Size()) continue;
ParseSFESample(sampleBankId, instPtr + 8, ptr, ctx);
ParseSFESample(sampleBankId, instPtr + 16, ptr, ctx);
ParseSFESample(sampleBankId, instPtr + 24, ptr, ctx);
}
}
}
}
bool AudioSampleWriter::Extract(std::vector<uint8_t>& buffer, YAML::Node& node,
SafeAudioBankReader& audioBank,
const std::vector<AudioTableEntry>& fontTable,
const std::vector<AudioTableEntry>& sampleBankTable,
std::map<uint32_t, SampleInfo>& sampleMap) {
// Load Audiotable segment (only needed for sample data extraction)
auto audiotableSeg = Companion::Instance->GetFileOffsetFromSegmentedAddr(3);
if (!audiotableSeg.has_value()) {
SPDLOG_ERROR("OoTAudioFactory: Audiotable segment not found");
return false;
}
uint32_t tableOff = audiotableSeg.value();
uint32_t tableSize = std::min((uint32_t)0x500000, (uint32_t)(buffer.size() - tableOff));
std::vector<uint8_t> audioTable(buffer.begin() + tableOff, buffer.begin() + tableOff + tableSize);
AudioParseContext ctx {
.audioBank = audioBank,
.sampleBankTable = sampleBankTable,
.sampleNames = ParseSampleNames(node),
.sampleMap = sampleMap,
};
DiscoverSamples(fontTable, ctx);
SPDLOG_INFO("OoTAudioFactory: discovered {} unique samples", sampleMap.size());
WriteCompanionFiles(sampleMap, audioTable);
return true;
}
} // namespace OoT
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