Dump T6 sound PCM data as wav

src/ObjLoading/ObjContainer/SoundBank/SoundBankTypes.h

@@ -38,8 +38,8 @@ struct SoundAssetBankEntry
     unsigned int size;
     unsigned int offset;
     unsigned int frameCount;
-    char frameRateIndex;
-    char channelCount;
-    char looping;
-    char format;
+    unsigned char frameRateIndex;
+    unsigned char channelCount;
+    unsigned char looping;
+    unsigned char format;
 };

src/ObjWriting/Game/IW4/AssetDumpers/AssetDumperLoadedSound.cpp

@@ -1,6 +1,7 @@
 #include "AssetDumperLoadedSound.h"
 
 #include "Sound/WavTypes.h"
+#include "Sound/WavWriter.h"
 
 using namespace IW4;
 
@@ -11,43 +12,16 @@ bool AssetDumperLoadedSound::ShouldDump(XAssetInfo<LoadedSound>* asset)
 
 void AssetDumperLoadedSound::DumpWavPcm(AssetDumpingContext& context, const LoadedSound* asset, std::ostream& stream)
 {
-    const auto riffMasterChunkSize = sizeof(WAV_CHUNK_ID_RIFF)
-        + sizeof(uint32_t)
-        + sizeof(WAV_WAVE_ID)
-        + sizeof(WavChunkHeader)
-        + sizeof(WavFormatChunkPcm)
-        + sizeof(WavChunkHeader)
-        + sizeof(asset->sound.info.data_len);
+    const WavWriter writer(stream);
 
-    stream.write(reinterpret_cast<const char*>(&WAV_CHUNK_ID_RIFF), sizeof(WAV_CHUNK_ID_RIFF));
-    stream.write(reinterpret_cast<const char*>(&riffMasterChunkSize), sizeof(riffMasterChunkSize));
-    stream.write(reinterpret_cast<const char*>(&WAV_WAVE_ID), sizeof(WAV_WAVE_ID));
-
-    const WavChunkHeader formatChunkHeader
-    {
-        WAV_CHUNK_ID_FMT,
-        sizeof(WavFormatChunkPcm)
+    const WavMetaData metaData{
+        static_cast<unsigned>(asset->sound.info.channels),
+        static_cast<unsigned>(asset->sound.info.rate),
+        static_cast<unsigned>(asset->sound.info.bits)
     };
-    stream.write(reinterpret_cast<const char*>(&formatChunkHeader), sizeof(formatChunkHeader));
 
-    WavFormatChunkPcm formatChunk
-    {
-        WavFormat::PCM,
-        static_cast<uint16_t>(asset->sound.info.channels),
-        asset->sound.info.rate,
-        asset->sound.info.rate * asset->sound.info.channels * asset->sound.info.bits / 8,
-        static_cast<uint16_t>(asset->sound.info.block_size),
-        static_cast<uint16_t>(asset->sound.info.bits)
-    };
-    stream.write(reinterpret_cast<const char*>(&formatChunk), sizeof(formatChunk));
-
-    const WavChunkHeader dataChunkHeader
-    {
-        WAV_CHUNK_ID_DATA,
-        asset->sound.info.data_len
-    };
-    stream.write(reinterpret_cast<const char*>(&dataChunkHeader), sizeof(dataChunkHeader));
-    stream.write(asset->sound.data, asset->sound.info.data_len);
+    writer.WritePcmHeader(metaData, asset->sound.info.data_len);
+    writer.WritePcmData(asset->sound.data, asset->sound.info.data_len);
 }
 
 void AssetDumperLoadedSound::DumpAsset(AssetDumpingContext& context, XAssetInfo<LoadedSound>* asset)

src/ObjWriting/Game/T6/AssetDumpers/AssetDumperSndBank.cpp

@@ -7,6 +7,7 @@
 #include "Utils/ClassUtils.h"
 #include "Csv/CsvStream.h"
 #include "ObjContainer/SoundBank/SoundBank.h"
+#include "Sound/WavWriter.h"
 
 using namespace T6;
 namespace fs = std::filesystem;
@@ -85,6 +86,19 @@ namespace
         "raw/",
         "devraw/",
     };
+
+    constexpr size_t FRAME_RATE_FOR_INDEX[]
+    {
+        8000,
+        12000,
+        16000,
+        24000,
+        32000,
+        44100,
+        48000,
+        96000,
+        192000
+    };
 }
 
 class AssetDumperSndBank::Internal
@@ -258,6 +272,37 @@ class AssetDumperSndBank::Internal
         return {};
     }
 
+    void DumpSoundFilePcm(const char* assetFileName, const SoundBankEntryInputStream& soundFile, const unsigned bitsPerSample) const
+    {
+        const auto outFile = OpenAssetOutputFile(assetFileName, ".wav");
+        if (!outFile)
+        {
+            std::cerr << "Failed to open sound output file: \"" << assetFileName << "\"\n";
+            return;
+        }
+
+        const WavWriter writer(*outFile);
+
+        if (soundFile.m_entry.frameRateIndex >= std::extent_v<decltype(FRAME_RATE_FOR_INDEX)>)
+            return;
+
+        const WavMetaData metaData{
+            soundFile.m_entry.channelCount,
+            FRAME_RATE_FOR_INDEX[soundFile.m_entry.frameRateIndex],
+            bitsPerSample
+        };
+
+        writer.WritePcmHeader(metaData, soundFile.m_entry.size);
+
+        while (!soundFile.m_stream->eof())
+        {
+            char buffer[2048];
+            soundFile.m_stream->read(buffer, sizeof(buffer));
+            const auto readSize = soundFile.m_stream->gcount();
+            outFile->write(buffer, readSize);
+        }
+    }
+
     void DumpSoundFilePassthrough(const char* assetFileName, const SoundBankEntryInputStream& soundFile, const std::string& extension) const
     {
         const auto outFile = OpenAssetOutputFile(assetFileName, extension);
@@ -284,15 +329,14 @@ class AssetDumperSndBank::Internal
             const auto format = static_cast<snd_asset_format>(soundFile.m_entry.format);
             switch (format)
             {
-            case SND_ASSET_FORMAT_MP3:
-                DumpSoundFilePassthrough(alias.assetFileName, soundFile, ".mp3");
+            case SND_ASSET_FORMAT_PCMS16:
+                DumpSoundFilePcm(alias.assetFileName, soundFile, 16u);
                 break;
 
             case SND_ASSET_FORMAT_FLAC:
                 DumpSoundFilePassthrough(alias.assetFileName, soundFile, ".flac");
                 break;
 
-            case SND_ASSET_FORMAT_PCMS16:
             case SND_ASSET_FORMAT_PCMS24:
             case SND_ASSET_FORMAT_PCMS32:
             case SND_ASSET_FORMAT_IEEE:

src/ObjWriting/Sound/WavWriter.cpp

@@ -0,0 +1,53 @@
+#include "WavWriter.h"
+
+#include "Sound/WavTypes.h"
+
+WavWriter::WavWriter(std::ostream& stream)
+    : m_stream(stream)
+{
+}
+
+void WavWriter::WritePcmHeader(const WavMetaData& metaData, const size_t dataLen) const
+{
+    constexpr auto riffMasterChunkSize = sizeof(WAV_CHUNK_ID_RIFF)
+        + sizeof(uint32_t)
+        + sizeof(WAV_WAVE_ID)
+        + sizeof(WavChunkHeader)
+        + sizeof(WavFormatChunkPcm)
+        + sizeof(WavChunkHeader)
+        + sizeof(dataLen);
+
+    m_stream.write(reinterpret_cast<const char*>(&WAV_CHUNK_ID_RIFF), sizeof(WAV_CHUNK_ID_RIFF));
+    m_stream.write(reinterpret_cast<const char*>(&riffMasterChunkSize), sizeof(riffMasterChunkSize));
+    m_stream.write(reinterpret_cast<const char*>(&WAV_WAVE_ID), sizeof(WAV_WAVE_ID));
+
+    constexpr WavChunkHeader formatChunkHeader
+    {
+        WAV_CHUNK_ID_FMT,
+        sizeof(WavFormatChunkPcm)
+    };
+    m_stream.write(reinterpret_cast<const char*>(&formatChunkHeader), sizeof(formatChunkHeader));
+
+    const WavFormatChunkPcm formatChunk
+    {
+        WavFormat::PCM,
+        static_cast<uint16_t>(metaData.channelCount),
+        metaData.samplesPerSec,
+        metaData.samplesPerSec * metaData.channelCount * metaData.bitsPerSample / 8,
+        static_cast<uint16_t>(metaData.channelCount * (metaData.bitsPerSample / 8)),
+        static_cast<uint16_t>(metaData.bitsPerSample)
+    };
+    m_stream.write(reinterpret_cast<const char*>(&formatChunk), sizeof(formatChunk));
+
+    const WavChunkHeader dataChunkHeader
+    {
+        WAV_CHUNK_ID_DATA,
+        dataLen
+    };
+    m_stream.write(reinterpret_cast<const char*>(&dataChunkHeader), sizeof(dataChunkHeader));
+}
+
+void WavWriter::WritePcmData(const void* data, const size_t dataLen) const
+{
+    m_stream.write(static_cast<const char*>(data), dataLen);
+}

src/ObjWriting/Sound/WavWriter.h

@@ -0,0 +1,21 @@
+#pragma once
+#include <ostream>
+
+struct WavMetaData
+{
+    unsigned channelCount;
+    unsigned samplesPerSec;
+    unsigned bitsPerSample;
+};
+
+class WavWriter
+{
+public:
+    explicit WavWriter(std::ostream& stream);
+
+    void WritePcmHeader(const WavMetaData& metaData, size_t dataLen) const;
+    void WritePcmData(const void* data, size_t dataLen) const;
+
+private:
+    std::ostream& m_stream;
+};