SoundBankWriter code

src/Crypto/Crypto.cpp

@@ -1,10 +1,16 @@
 #include "Crypto.h"
 
+#include "Impl/AlgorithmMD5.h"
 #include "Impl/AlgorithmRSA.h"
 #include "Impl/AlgorithmSHA1.h"
 #include "Impl/AlgorithmSHA256.h"
 #include "Impl/AlgorithmSalsa20.h"
 
+std::unique_ptr<IHashFunction> Crypto::CreateMD5()
+{
+    return std::make_unique<AlgorithmMD5>();
+}
+
 std::unique_ptr<IHashFunction> Crypto::CreateSHA1()
 {
     return std::make_unique<AlgorithmSHA1>();

src/Crypto/Crypto.h

@@ -16,6 +16,8 @@ public:
         RSA_PADDING_PSS,
     };
 
+    static std::unique_ptr<IHashFunction> CreateMD5();
+
     static std::unique_ptr<IHashFunction> CreateSHA1();
     static std::unique_ptr<IHashFunction> CreateSHA256();
 

src/Crypto/Impl/AlgorithmMD5.cpp

@@ -0,0 +1,64 @@
+#include "AlgorithmSHA1.h"
+
+#include "CryptoLibrary.h"
+
+#include <cstdint>
+
+class AlgorithmSHA1::AlgorithmSHA1Impl
+{
+    hash_state m_state{};
+
+public:
+    AlgorithmSHA1Impl()
+    {
+        CryptoLibrary::Init();
+
+        Init();
+    }
+
+    void Init()
+    {
+        sha1_init(&m_state);
+    }
+
+    void Process(const void* input, const size_t inputSize)
+    {
+        sha1_process(&m_state, static_cast<const uint8_t*>(input), inputSize);
+    }
+
+    void Finish(void* hashBuffer)
+    {
+        sha1_done(&m_state, static_cast<uint8_t*>(hashBuffer));
+    }
+};
+
+AlgorithmSHA1::AlgorithmSHA1()
+{
+    m_impl = new AlgorithmSHA1Impl();
+}
+
+AlgorithmSHA1::~AlgorithmSHA1()
+{
+    delete m_impl;
+    m_impl = nullptr;
+}
+
+size_t AlgorithmSHA1::GetHashSize()
+{
+    return HASH_SIZE;
+}
+
+void AlgorithmSHA1::Init()
+{
+    m_impl->Init();
+}
+
+void AlgorithmSHA1::Process(const void* input, const size_t inputSize)
+{
+    m_impl->Process(input, inputSize);
+}
+
+void AlgorithmSHA1::Finish(void* hashBuffer)
+{
+    m_impl->Finish(hashBuffer);
+}

src/Crypto/Impl/AlgorithmMD5.h

@@ -0,0 +1,20 @@
+#pragma once
+#include "IHashFunction.h"
+
+class AlgorithmSHA1 : public IHashFunction
+{
+    class AlgorithmSHA1Impl;
+    AlgorithmSHA1Impl* m_impl;
+
+public:
+    static const int HASH_SIZE = 20;
+
+    AlgorithmSHA1();
+    ~AlgorithmSHA1() override;
+
+    size_t GetHashSize() override;
+
+    void Init() override;
+    void Process(const void* input, size_t inputSize) override;
+    void Finish(void* hashBuffer) override;
+};

src/Linker/Linker.cpp

@@ -9,6 +9,7 @@
 #include "LinkerSearchPaths.h"
 #include "ObjContainer/IPak/IPakWriter.h"
 #include "ObjContainer/IWD/IWD.h"
+#include "ObjContainer/SoundBank/SoundBankWriter.h"
 #include "ObjLoading.h"
 #include "ObjWriting.h"
 #include "SearchPath/SearchPaths.h"
@@ -419,6 +420,8 @@ class LinkerImpl final : public Linker
                        SearchPaths& gdtSearchPaths,
                        SearchPaths& sourceSearchPaths) const
     {
+        SoundBankWriter::OutputPath = fs::path(m_args.GetOutputFolderPathForProject(projectName));
+        
         const auto zone = CreateZoneForDefinition(targetName, zoneDefinition, &assetSearchPaths, &gdtSearchPaths, &sourceSearchPaths);
         auto result = zone != nullptr;
         if (zone)

src/ObjCommon/Csv/ParsedCsv.cpp

@@ -6,7 +6,7 @@ ParsedCsvRow::ParsedCsvRow(std::unordered_map<std::string, size_t>& headers, std
 {
 }
 
-const std::string& ParsedCsvRow::GetValue(const std::string& header, bool required) const
+const std::string ParsedCsvRow::GetValue(const std::string& header, bool required) const
 {
     if (this->headers.find(header) == this->headers.end())
     {
@@ -14,19 +14,34 @@ const std::string& ParsedCsvRow::GetValue(const std::string& header, bool requir
             std::cerr << "ERROR: Required column \"" << header << "\" was not found";
         else
             std::cerr << "WARNING: Expected column \"" << header << "\" was not found";
-        return nullptr;
+        
+        return {};
     }
 
     auto& value = this->values.at(this->headers[header]);
     if (required && value.empty())
     {
         std::cerr << "ERROR: Required column \"" << header << "\" does not have a value";
-        return nullptr;
+        return {};
     }
 
     return value;
 }
 
+const float ParsedCsvRow::GetValueFloat(const std::string& header, bool required) const
+{
+    const auto& value = this->GetValue(header, required);
+    if (!value.empty())
+    {
+        std::istringstream ss(value);
+        float out;
+        ss >> out;
+        return out;
+    }
+
+    return {};
+}
+
 ParsedCsv::ParsedCsv(const CsvInputStream& inputStream, bool hasHeaders)
 {
     std::vector<std::vector<std::string>> csvLines;

src/ObjCommon/Csv/ParsedCsv.h

@@ -10,17 +10,18 @@ class ParsedCsvRow
 
 public:
     explicit ParsedCsvRow(std::unordered_map<std::string, size_t>& headers, std::vector<std::string>& row);
-    const std::string& GetValue(const std::string& header, bool required = false) const;
+    const std::string GetValue(const std::string& header, bool required = false) const;
+    const float GetValueFloat(const std::string& header, bool required = false) const;
     
-    template<typename T> T GetValueAs(const std::string& header, bool required = false) const
+    template<typename T> T GetValueInt(const std::string& header, bool required = false) const
     {
         const auto& value = this->GetValue(header, required);
         if (!value.empty())
         {
             std::istringstream ss(value);
-            T out{};
+            long long out;
             ss >> out;
-            return out;
+            return static_cast<T>(out);
         }
 
         return {};

src/ObjCommon/Sound/WavTypes.h

@@ -28,3 +28,20 @@ struct WavFormatChunkPcm
     uint16_t nBlockAlign;
     uint16_t wBitsPerSample;
 };
+
+struct WavMetaData
+{
+    unsigned channelCount;
+    unsigned samplesPerSec;
+    unsigned bitsPerSample;
+};
+
+struct WavHeader
+{
+    unsigned int chunkIdRiff;
+    unsigned int chunkIdSize;
+    unsigned int format;
+    WavChunkHeader chunkHeader;
+    WavFormatChunkPcm formatChunk;
+    WavChunkHeader subChunkHeader;
+};

src/ObjLoading/Game/T6/AssetLoaders/AssetLoaderSoundBank.cpp

@@ -1,6 +1,7 @@
 #include "AssetLoaderSoundBank.h"
 
 #include "Csv/ParsedCsv.h"
+#include "ObjContainer/SoundBank/SoundBankWriter.h"
 #include "nlohmann/json.hpp"
 
 #include "Game/T6/CommonT6.h"
@@ -11,8 +12,54 @@
 #include <Utils/StringUtils.h>
 #include <cstring>
 #include <iostream>
+#include <fstream>
 
 using namespace T6;
+namespace fs = std::filesystem;
+
+namespace
+{
+    const std::string PREFIXES_TO_DROP[] {
+        "raw/",
+        "devraw/",
+    };
+
+    _NODISCARD std::string GetSoundFilePath(SndAlias* sndAlias)
+    {
+        std::string soundFilePath(sndAlias->assetFileName);
+
+        std::replace(soundFilePath.begin(), soundFilePath.end(), '\\', '/');
+        for (const auto& droppedPrefix : PREFIXES_TO_DROP)
+        {
+            if (soundFilePath.rfind(droppedPrefix, 0) != std::string::npos)
+            {
+                soundFilePath.erase(0, droppedPrefix.size());
+                break;
+            }
+        }
+
+        return soundFilePath;
+    }
+
+    _NODISCARD std::unique_ptr<std::ofstream> OpenSoundBankOutputFile(const std::string& bankName)
+    {
+        fs::path assetPath = SoundBankWriter::OutputPath / bankName;
+
+        auto assetDir(assetPath);
+        assetDir.remove_filename();
+
+        create_directories(assetDir);
+
+        auto outputStream = std::make_unique<std::ofstream>(assetPath, std::ios_base::out | std::ios_base::binary);
+
+        if (outputStream->is_open())
+        {
+            return std::move(outputStream);
+        }
+
+        return nullptr;
+    }
+}
 
 void* AssetLoaderSoundBank::CreateEmptyAsset(const std::string& assetName, MemoryManager* memory)
 {
@@ -84,38 +131,44 @@ bool LoadSoundAlias(MemoryManager* memory, SndAlias* alias, const ParsedCsvRow&
     alias->id = Common::SND_HashName(name.data());
     alias->assetFileName = memory->Dup(aliasFileName.data());
     alias->assetId = Common::SND_HashName(aliasFileName.data());
-    alias->secondaryname = memory->Dup(row.GetValue("secondary").data());
-    alias->subtitle = memory->Dup(row.GetValue("subtitle").data());
+
+    auto secondaryName = row.GetValue("secondary");
+    if (!secondaryName.empty())
+        alias->secondaryname = memory->Dup(secondaryName.data());
+
+    auto subtitle = row.GetValue("subtitle");
+    if (!subtitle.empty())
+        alias->subtitle = memory->Dup(subtitle.data());
 
     alias->duck = Common::SND_HashName(row.GetValue("duck").data());
 
-    alias->volMin = row.GetValueAs<uint16_t>("vol_min");
-    alias->volMax = row.GetValueAs<uint16_t>("vol_max");
-    alias->distMin = row.GetValueAs<uint16_t>("dist_min");
-    alias->distMax = row.GetValueAs<uint16_t>("dist_max");
-    alias->distReverbMax = row.GetValueAs<uint16_t>("dist_reverb_max");
-    alias->limitCount = row.GetValueAs<char>("limit_count");
-    alias->entityLimitCount = row.GetValueAs<char>("entity_limit_count");
-    alias->pitchMin = row.GetValueAs<uint16_t>("pitch_min");
-    alias->pitchMax = row.GetValueAs<uint16_t>("pitch_max");
-    alias->minPriority = row.GetValueAs<char>("min_priority");
-    alias->maxPriority = row.GetValueAs<char>("max_priority");
-    alias->minPriorityThreshold = row.GetValueAs<char>("min_priority_threshold");
-    alias->maxPriorityThreshold = row.GetValueAs<char>("max_priority_threshold");
-    alias->probability = row.GetValueAs<char>("probability");
-    alias->startDelay = row.GetValueAs<uint16_t>("start_delay");
-    alias->reverbSend = row.GetValueAs<uint16_t>("reverb_send");
-    alias->centerSend = row.GetValueAs<uint16_t>("center_send");
-    alias->envelopMin = row.GetValueAs<uint16_t>("envelop_min");
-    alias->envelopMax = row.GetValueAs<uint16_t>("envelop_max");
-    alias->envelopPercentage = row.GetValueAs<uint16_t>("envelop_percentage");
-    alias->occlusionLevel = row.GetValueAs<char>("occlusion_level");
-    alias->fluxTime = row.GetValueAs<uint16_t>("move_time");
-    alias->futzPatch = row.GetValueAs<unsigned int>("futz");
-    alias->contextType = row.GetValueAs<unsigned int>("context_type");
-    alias->contextValue = row.GetValueAs<unsigned int>("context_value");
-    alias->fadeIn = row.GetValueAs<int16_t>("fade_in");
-    alias->fadeOut = row.GetValueAs<int16_t>("fade_out");
+    alias->volMin = row.GetValueInt<uint16_t>("vol_min");
+    alias->volMax = row.GetValueInt<uint16_t>("vol_max");
+    alias->distMin = row.GetValueInt<uint16_t>("dist_min");
+    alias->distMax = row.GetValueInt<uint16_t>("dist_max");
+    alias->distReverbMax = row.GetValueInt<uint16_t>("dist_reverb_max");
+    alias->limitCount = row.GetValueInt<uint8_t>("limit_count");
+    alias->entityLimitCount = row.GetValueInt<uint8_t>("entity_limit_count");
+    alias->pitchMin = row.GetValueInt<uint16_t>("pitch_min");
+    alias->pitchMax = row.GetValueInt<uint16_t>("pitch_max");
+    alias->minPriority = row.GetValueInt<uint8_t>("min_priority");
+    alias->maxPriority = row.GetValueInt<uint8_t>("max_priority");
+    alias->minPriorityThreshold = row.GetValueInt<uint8_t>("min_priority_threshold");
+    alias->maxPriorityThreshold = row.GetValueInt<uint8_t>("max_priority_threshold");
+    alias->probability = row.GetValueInt<uint8_t>("probability");
+    alias->startDelay = row.GetValueInt<uint16_t>("start_delay");
+    alias->reverbSend = row.GetValueInt<uint16_t>("reverb_send");
+    alias->centerSend = row.GetValueInt<uint16_t>("center_send");
+    alias->envelopMin = row.GetValueInt<uint16_t>("envelop_min");
+    alias->envelopMax = row.GetValueInt<uint16_t>("envelop_max");
+    alias->envelopPercentage = row.GetValueInt<uint16_t>("envelop_percentage");
+    alias->occlusionLevel = row.GetValueInt<uint8_t>("occlusion_level");
+    alias->fluxTime = row.GetValueInt<uint16_t>("move_time");
+    alias->futzPatch = row.GetValueInt<unsigned int>("futz");
+    alias->contextType = row.GetValueInt<unsigned int>("context_type");
+    alias->contextValue = row.GetValueInt<unsigned int>("context_value");
+    alias->fadeIn = row.GetValueInt<int16_t>("fade_in");
+    alias->fadeOut = row.GetValueInt<int16_t>("fade_out");
 
     alias->flags.looping = row.GetValue("loop") == "looping";
     alias->flags.panType = row.GetValue("pan") == "3d";
@@ -309,22 +362,22 @@ bool LoadSoundRadverbs(MemoryManager* memory, SndBank* sndBank, const SearchPath
 
             strncpy_s(sndBank->radverbs[i].name, name.data(), 32);
             sndBank->radverbs[i].id = Common::SND_HashName(name.data());
-            sndBank->radverbs[i].smoothing = row.GetValueAs<float>("smoothing");
-            sndBank->radverbs[i].earlyTime = row.GetValueAs<float>("earlyTime");
-            sndBank->radverbs[i].lateTime = row.GetValueAs<float>("lateTime");
-            sndBank->radverbs[i].earlyGain = row.GetValueAs<float>("earlyGain");
-            sndBank->radverbs[i].lateGain = row.GetValueAs<float>("lateGain");
-            sndBank->radverbs[i].returnGain = row.GetValueAs<float>("returnGain");
-            sndBank->radverbs[i].earlyLpf = row.GetValueAs<float>("earlyLpf");
-            sndBank->radverbs[i].lateLpf = row.GetValueAs<float>("lateLpf");
-            sndBank->radverbs[i].inputLpf = row.GetValueAs<float>("inputLpf");
-            sndBank->radverbs[i].dampLpf = row.GetValueAs<float>("dampLpf");
-            sndBank->radverbs[i].wallReflect = row.GetValueAs<float>("wallReflect");
-            sndBank->radverbs[i].dryGain = row.GetValueAs<float>("dryGain");
-            sndBank->radverbs[i].earlySize = row.GetValueAs<float>("earlySize");
-            sndBank->radverbs[i].lateSize = row.GetValueAs<float>("lateSize");
-            sndBank->radverbs[i].diffusion = row.GetValueAs<float>("diffusion");
-            sndBank->radverbs[i].returnHighpass = row.GetValueAs<float>("returnHighpass");
+            sndBank->radverbs[i].smoothing = row.GetValueFloat("smoothing");
+            sndBank->radverbs[i].earlyTime = row.GetValueFloat("earlyTime");
+            sndBank->radverbs[i].lateTime = row.GetValueFloat("lateTime");
+            sndBank->radverbs[i].earlyGain = row.GetValueFloat("earlyGain");
+            sndBank->radverbs[i].lateGain = row.GetValueFloat("lateGain");
+            sndBank->radverbs[i].returnGain = row.GetValueFloat("returnGain");
+            sndBank->radverbs[i].earlyLpf = row.GetValueFloat("earlyLpf");
+            sndBank->radverbs[i].lateLpf = row.GetValueFloat("lateLpf");
+            sndBank->radverbs[i].inputLpf = row.GetValueFloat("inputLpf");
+            sndBank->radverbs[i].dampLpf = row.GetValueFloat("dampLpf");
+            sndBank->radverbs[i].wallReflect = row.GetValueFloat("wallReflect");
+            sndBank->radverbs[i].dryGain = row.GetValueFloat("dryGain");
+            sndBank->radverbs[i].earlySize = row.GetValueFloat("earlySize");
+            sndBank->radverbs[i].lateSize = row.GetValueFloat("lateSize");
+            sndBank->radverbs[i].diffusion = row.GetValueFloat("diffusion");
+            sndBank->radverbs[i].returnHighpass = row.GetValueFloat("returnHighpass");
         }
     }
 
@@ -416,6 +469,7 @@ bool AssetLoaderSoundBank::LoadFromRaw(
     sndBank->name = memory->Dup(assetName.c_str());
     auto sndBankLocalization = utils::StringSplit(assetName, '.');
 
+    // load the soundbank aliases
     unsigned int loadedEntryCount = 0u, streamedEntryCount = 0u;
     if (!LoadSoundAliasList(memory, sndBank, aliasFile, &loadedEntryCount, &streamedEntryCount))
         return false;
@@ -442,6 +496,9 @@ bool AssetLoaderSoundBank::LoadFromRaw(
         }
     }
 
+    std::unique_ptr<std::ofstream> sablStream, sabsStream;
+    std::unique_ptr<SoundBankWriter> sablWriter, sabsWriter;
+
     if (loadedEntryCount > 0)
     {
         sndBank->loadAssetBank.zone = memory->Dup(sndBankLocalization.at(0).c_str());
@@ -454,6 +511,11 @@ bool AssetLoaderSoundBank::LoadFromRaw(
         sndBank->loadedAssets.entryCount = loadedEntryCount;
         sndBank->loadedAssets.entries = static_cast<SndAssetBankEntry*>(memory->Alloc(sizeof(SndAssetBankEntry) * loadedEntryCount));
         memset(sndBank->loadedAssets.entries, 0, sizeof(SndAssetBankEntry) * loadedEntryCount);
+
+        const auto sablName = assetName + ".sabl";
+        sablStream = OpenSoundBankOutputFile(sablName);
+        if (sablStream)
+            sablWriter = SoundBankWriter::Create(sablName, *sablStream, searchPath);
     }
 
     if (streamedEntryCount > 0)
@@ -461,6 +523,40 @@ bool AssetLoaderSoundBank::LoadFromRaw(
         sndBank->streamAssetBank.zone = memory->Dup(sndBankLocalization.at(0).c_str());
         sndBank->streamAssetBank.language = memory->Dup(sndBankLocalization.at(1).c_str());
         memset(sndBank->streamAssetBank.linkTimeChecksum, 0xCC, 16);
+
+        const auto sabsName = assetName + ".sabs";
+        sabsStream = OpenSoundBankOutputFile(sabsName);
+        if (sabsStream)
+            sablWriter = SoundBankWriter::Create(sabsName, *sabsStream, searchPath);
+    }
+
+    // add aliases to the correct sound bank writer
+    for (auto i = 0u; i < sndBank->aliasCount; i++)
+    {
+        auto* aliasList = &sndBank->alias[i];
+        for (auto j = 0; j < aliasList->count; j++)
+        {
+            auto* alias = &aliasList->head[j];
+
+            if (sabsWriter && alias->flags.loadType == T6::SA_STREAMED)
+                sabsWriter->AddSound(GetSoundFilePath(alias), alias->assetId);
+            else if (sablWriter)
+                sablWriter->AddSound(GetSoundFilePath(alias), alias->assetId);
+        }
+    }
+    
+    // write the output linked sound bank
+    if (sablWriter)
+    {
+        sablWriter->Write();
+        sablStream->close();
+    }
+
+    // write the output streamed sound bank
+    if (sabsWriter)
+    {
+        sabsWriter->Write();
+        sabsStream->close();
     }
 
     manager->AddAsset(ASSET_TYPE_SOUND, assetName, sndBank);

src/ObjLoading/ObjContainer/SoundBank/SoundBankWriter.cpp

@@ -0,0 +1,261 @@
+#include "SoundBankWriter.h"
+
+#include "Crypto.h"
+#include "ObjContainer/SoundBank/SoundBankTypes.h"
+#include "Sound/WavTypes.h"
+#include "Utils/Alignment.h"
+#include "Utils/FileUtils.h"
+
+#include <filesystem>
+#include <iostream>
+#include <unordered_map>
+
+std::unordered_map<unsigned int, unsigned char> INDEX_FOR_FRAMERATE{
+    {8000,   0},
+    {12000,  1},
+    {16000,  2},
+    {24000,  3},
+    {32000,  4},
+    {44100,  5},
+    {48000,  6},
+    {96000,  7},
+    {192000, 8}, 
+};
+
+class SoundBankWriterImpl : public SoundBankWriter
+{
+    static constexpr char BRANDING[] = "Created with OAT - OpenAssetTools";
+    static constexpr int64_t DATA_OFFSET = 0x800;
+    static constexpr uint32_t MAGIC = FileUtils::MakeMagic32('2', 'U', 'X', '#');
+    static constexpr uint32_t VERSION = 14u;
+
+    inline static const std::string PAD_DATA = std::string(16, '\x00');
+
+public:
+    explicit SoundBankWriterImpl::SoundBankWriterImpl(const std::string& fileName, std::ostream& stream, ISearchPath* assetSearchPath)
+        : m_file_name(fileName),
+          m_stream(stream),
+          m_asset_search_path(assetSearchPath),
+          m_sounds(),
+          m_current_offset(0),
+          m_total_size(0),
+          m_entry_section_offset(0),
+          m_checksum_section_offset(0)
+    {
+    }
+
+    void AddSound(const std::string& soundFilePath, unsigned int soundId) override
+    {
+        this->m_sounds.push_back(std::make_pair(soundFilePath, soundId));
+    }
+
+    void GoTo(const int64_t offset)
+    {
+        m_stream.seekp(offset, std::ios::beg);
+        m_current_offset = offset;
+    }
+
+    void Write(const void* data, const size_t dataSize)
+    {
+        m_stream.write(static_cast<const char*>(data), dataSize);
+        m_current_offset += dataSize;
+    }
+
+    void Pad(const size_t paddingSize)
+    {
+        auto paddingSizeLeft = paddingSize;
+        while (paddingSizeLeft > 0)
+        {
+            const auto writeSize = std::min(paddingSizeLeft, PAD_DATA.size());
+            Write(PAD_DATA.data(), writeSize);
+
+            paddingSizeLeft -= writeSize;
+        }
+    }
+
+    void AlignToChunk()
+    {
+        if ((m_current_offset & 0xF) != 0)
+            Pad(0x10 - (m_current_offset & 0xF));
+    }
+
+    void WriteHeader()
+    {
+        GoTo(0);
+
+        SoundAssetBankChecksum checksum{};
+        memset(&checksum, 0xCC, sizeof(SoundAssetBankChecksum));
+
+        SoundAssetBankHeader header{MAGIC,
+                                    VERSION,
+                                    sizeof(SoundAssetBankEntry),
+                                    sizeof(SoundAssetBankChecksum),
+                                    0x40,
+                                    m_entries.size(),
+                                    0,
+                                    0,
+                                    m_total_size,
+                                    m_entry_section_offset,
+                                    m_checksum_section_offset,
+                                    checksum};
+
+        strncpy(header.dependencies, m_file_name.data(), header.dependencySize);
+
+        Write(&header, sizeof(header));
+    }
+
+    bool WriteEntries()
+    {
+        GoTo(DATA_OFFSET);
+
+        for (auto& sound : m_sounds)
+        {
+            const auto soundFilePath = sound.first;
+            const auto soundId = sound.second;
+
+            size_t soundSize = -1;
+            std::unique_ptr<char[]> soundData;
+
+            // try to find a wav file for the sound path
+            const auto wavFile = m_asset_search_path->Open(soundFilePath + ".wav");
+            if (wavFile.IsOpen())
+            {
+                WavHeader header{};
+                wavFile.m_stream->read(reinterpret_cast<char*>(&header), sizeof(WavHeader));
+
+                soundSize = static_cast<size_t>(wavFile.m_length - sizeof(WavHeader));
+                auto frameCount = soundSize / (header.formatChunk.nChannels * (header.formatChunk.wBitsPerSample / 8));
+                auto frameRateIndex = INDEX_FOR_FRAMERATE[header.formatChunk.nSamplesPerSec];
+
+                SoundAssetBankEntry entry{
+                    soundId,
+                    soundSize,
+                    static_cast<size_t>(m_current_offset),
+                    frameCount,
+                    frameRateIndex,
+                    static_cast<unsigned char>(header.formatChunk.nChannels),
+                    0,
+                    0,
+                };
+
+                m_entries.push_back(entry);
+
+                soundData = std::make_unique<char[]>(soundSize);
+                wavFile.m_stream->read(soundData.get(), soundSize);
+            }
+            else
+            {
+                // if there is no wav file, try flac file
+                const auto flacFile = m_asset_search_path->Open(soundFilePath + ".wav");
+                if (flacFile.IsOpen())
+                {
+                    soundSize = static_cast<size_t>(flacFile.m_length);
+
+                    SoundAssetBankEntry entry{
+                        soundId,
+                        soundSize,
+                        static_cast<size_t>(m_current_offset),
+                        0,
+                        0,
+                        0,
+                        0,
+                        8,
+                    };
+
+                    m_entries.push_back(entry);
+
+                    soundData = std::make_unique<char[]>(soundSize);
+                    flacFile.m_stream->read(soundData.get(), soundSize);
+                }
+                else
+                {
+                    std::cerr << "Unable to find a compatible file for sound " << soundFilePath << std::endl;
+                    return false;
+                }
+            }
+
+            // calculate checksum
+            SoundAssetBankChecksum checksum{};
+
+            const auto md5Crypt = Crypto::CreateMD5();
+            md5Crypt->Process(soundData.get(), soundSize);
+            md5Crypt->Finish(checksum.checksumBytes);
+
+            m_checksums.push_back(checksum);
+
+            // write data
+            Write(soundData.get(), soundSize);
+        }
+
+        return true;
+    }
+
+    void WriteEntryList()
+    {
+        AlignToChunk();
+
+        m_entry_section_offset = m_current_offset;
+
+        for (auto& entry : m_entries)
+        {
+            Write(&entry, sizeof(SoundAssetBankEntry));
+        }
+    }
+
+    void WriteChecksumList()
+    {
+        m_checksum_section_offset = m_current_offset;
+
+        for (auto& checksum : m_checksums)
+        {
+            Write(&checksum, sizeof(SoundAssetBankChecksum));
+        }
+    }
+
+    void WriteBranding()
+    {
+        AlignToChunk();
+        Write(BRANDING, sizeof(BRANDING));
+        AlignToChunk();
+    }
+
+    bool Write() override
+    {
+        WriteEntries();
+        WriteEntryList();
+        WriteChecksumList();
+        WriteBranding();
+
+        m_total_size = m_current_offset;
+
+        WriteHeader();
+
+        if (m_current_offset > UINT32_MAX)
+        {
+            std::cerr << "Sound bank files must be under 4GB. Please reduce the number of sounds being written!" << std::endl;
+            return false;
+        }
+
+        return true;
+    }
+
+private:
+    std::string m_file_name;
+    std::ostream& m_stream;
+    ISearchPath* m_asset_search_path;
+    std::vector<std::pair<std::string, unsigned int>> m_sounds;
+
+    int64_t m_current_offset;
+    std::vector<SoundAssetBankEntry> m_entries;
+    std::vector<SoundAssetBankChecksum> m_checksums;
+    int64_t m_total_size;
+    int64_t m_entry_section_offset;
+    int64_t m_checksum_section_offset;
+};
+
+std::filesystem::path SoundBankWriter::OutputPath;
+
+std::unique_ptr<SoundBankWriter> SoundBankWriter::Create(const std::string& fileName, std::ostream& stream, ISearchPath* assetSearchPath)
+{
+    return std::make_unique<SoundBankWriterImpl>(fileName, stream, assetSearchPath);
+}

src/ObjLoading/ObjContainer/SoundBank/SoundBankWriter.h

@@ -0,0 +1,25 @@
+#pragma once
+#include "SearchPath/ISearchPath.h"
+
+#include <memory>
+#include <ostream>
+#include <filesystem>
+
+class SoundBankWriter
+{
+public:
+    SoundBankWriter() = default;
+    virtual ~SoundBankWriter() = default;
+
+    SoundBankWriter(const SoundBankWriter& other) = default;
+    SoundBankWriter(SoundBankWriter&& other) noexcept = default;
+    SoundBankWriter& operator=(const SoundBankWriter& other) = default;
+    SoundBankWriter& operator=(SoundBankWriter&& other) noexcept = default;
+
+    virtual void AddSound(const std::string& soundFilePath, unsigned int soundId) = 0;
+    virtual bool Write() = 0;
+
+    static std::unique_ptr<SoundBankWriter> Create(const std::string& fileName, std::ostream& stream, ISearchPath* assetSearchPath);
+
+    static std::filesystem::path OutputPath;
+};

src/ObjWriting.lua

@@ -52,7 +52,8 @@ function ObjWriting:project()
 		
         self:include(includes)
 		Utils:include(includes)
-		json:include(includes)
 		minilzo:include(includes)
 		minizip:include(includes)
+		json:include(includes)
+
 end

src/ObjWriting/Sound/WavWriter.cpp

@@ -1,7 +1,5 @@
 #include "WavWriter.h"
 
-#include "Sound/WavTypes.h"
-
 WavWriter::WavWriter(std::ostream& stream)
     : m_stream(stream)
 {

src/ObjWriting/Sound/WavWriter.h

@@ -1,12 +1,6 @@
 #pragma once
 #include <ostream>
-
-struct WavMetaData
-{
-    unsigned channelCount;
-    unsigned samplesPerSec;
-    unsigned bitsPerSample;
-};
+#include <Sound/WavTypes.h>
 
 class WavWriter
 {