audio_core: hle: mf: address yet another batch of reviews

src/audio_core/hle/adts.h

@@ -20,4 +20,4 @@ ADTSData ParseADTS(const char* buffer);
 
 // last two bytes of MF AAC decoder user data
 // see https://docs.microsoft.com/en-us/windows/desktop/medfound/aac-decoder#example-media-types
-u16 MFGetAACTag(const ADTSData input);
+u16 MFGetAACTag(const ADTSData& input);

src/audio_core/hle/adts_reader.cpp

@@ -50,7 +50,7 @@ ADTSData ParseADTS(const char* buffer) {
 // Frame length flag (1 bit)
 // Depends on core coder (1 bit)
 // Extension flag (1 bit)
-u16 MFGetAACTag(const ADTSData input) {
+u16 MFGetAACTag(const ADTSData& input) {
     u16 tag = 0;
 
     tag |= input.profile << 11;

src/audio_core/hle/wmf_decoder.cpp

@@ -22,7 +22,7 @@ private:
 
     MFOutputState DecodingLoop(ADTSData adts_header, std::array<std::vector<u8>, 2>& out_streams);
 
-    bool initalized = false;
+    bool initialized = false;
     bool selected = false;
 
     Memory::MemorySystem& memory;
@@ -36,7 +36,9 @@ WMFDecoder::Impl::Impl(Memory::MemorySystem& memory) : memory(memory) {
     MFCoInit();
 }
 
-WMFDecoder::Impl::~Impl() = default;
+WMFDecoder::Impl::~Impl() {
+    Clear();
+}
 
 std::optional<BinaryResponse> WMFDecoder::Impl::ProcessRequest(const BinaryRequest& request) {
     if (request.codec != DecoderCodec::AAC) {
@@ -65,7 +67,7 @@ std::optional<BinaryResponse> WMFDecoder::Impl::ProcessRequest(const BinaryReque
 }
 
 std::optional<BinaryResponse> WMFDecoder::Impl::Initalize(const BinaryRequest& request) {
-    if (initalized) {
+    if (initialized) {
         Clear();
     }
 
@@ -89,16 +91,16 @@ std::optional<BinaryResponse> WMFDecoder::Impl::Initalize(const BinaryRequest& r
         return response;
     }
 
-    initalized = true;
+    initialized = true;
     return response;
 }
 
 void WMFDecoder::Impl::Clear() {
-    if (initalized) {
+    if (initialized) {
         MFFlush(transform.get());
-        MFDeInit(transform.get());
+        MFDestroy();
     }
-    initalized = false;
+    initialized = false;
     selected = false;
 }
 
@@ -117,7 +119,7 @@ MFOutputState WMFDecoder::Impl::DecodingLoop(ADTSData adts_header,
 
             // the following was taken from ffmpeg version of the decoder
             f32 val_f32;
-            for (size_t i = 0; i < output_buffer->size();) {
+            for (std::size_t i = 0; i < output_buffer->size();) {
                 for (std::size_t channel = 0; channel < adts_header.channels; channel++) {
                     val_f32 = output_buffer->at(i);
                     s16 val = static_cast<s16>(0x7FFF * val_f32);
@@ -161,8 +163,8 @@ std::optional<BinaryResponse> WMFDecoder::Impl::Decode(const BinaryRequest& requ
     response.num_channels = 2;
     response.num_samples = 1024;
 
-    if (!initalized) {
-        LOG_DEBUG(Audio_DSP, "Decoder not initalized");
+    if (!initialized) {
+        LOG_DEBUG(Audio_DSP, "Decoder not initialized");
         // This is a hack to continue games when decoder failed to initialize
         return response;
     }

src/audio_core/hle/wmf_decoder_utils.cpp

@@ -2,6 +2,7 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 #include "common/logging/log.h"
+#include "common/string_util.h"
 #include "wmf_decoder_utils.h"
 
 // utility functions
@@ -9,16 +10,17 @@ void ReportError(std::string msg, HRESULT hr) {
     if (SUCCEEDED(hr)) {
         return;
     }
-    LPSTR err;
-    FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_ALLOCATE_BUFFER |
+    LPWSTR err;
+    FormatMessageW(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_ALLOCATE_BUFFER |
                        FORMAT_MESSAGE_IGNORE_INSERTS,
                    nullptr, hr,
                    // hardcode to use en_US because if any user had problems with this
                    // we can help them w/o translating anything
                    // default is to use the language currently active on the operating system
-                  MAKELANGID(LANG_ENGLISH, SUBLANG_ENGLISH_US), (LPSTR)&err, 0, nullptr);
+                   MAKELANGID(LANG_ENGLISH, SUBLANG_ENGLISH_US), (LPWSTR)&err, 0, nullptr);
     if (err != nullptr) {
-        LOG_CRITICAL(Audio_DSP, "{}: {}", msg, err);
+        LOG_CRITICAL(Audio_DSP, "{}: {}", msg, Common::UTF16ToUTF8(err));
+        LocalFree(err);
     }
     LOG_CRITICAL(Audio_DSP, "{}: {:08x}", msg, hr);
 }
@@ -82,8 +84,8 @@ unique_mfptr<IMFTransform> MFDecoderInit(GUID audio_format) {
     return std::move(transform);
 }
 
-void MFDeInit(IMFTransform* transform) {
-    MFShutdownObject(transform);
+void MFDestroy() {
+    MFShutdown();
     CoUninitialize();
 }
 
@@ -126,11 +128,11 @@ unique_mfptr<IMFSample> CreateSample(void* data, DWORD len, DWORD alignment, LON
         ReportError("Unable to set sample duration, but continuing anyway", hr);
     }
 
-    return std::move(sample);
+    return sample;
 }
 
 bool SelectInputMediaType(IMFTransform* transform, int in_stream_id, const ADTSData& adts,
-                          UINT8* user_data, UINT32 user_data_len, GUID audio_format) {
+                          const UINT8* user_data, UINT32 user_data_len, GUID audio_format) {
     HRESULT hr = S_OK;
     unique_mfptr<IMFMediaType> t;
 
@@ -209,7 +211,7 @@ bool SelectOutputMediaType(IMFTransform* transform, int out_stream_id, GUID audi
     return false;
 }
 
-std::optional<ADTSMeta> DetectMediaType(char* buffer, size_t len) {
+std::optional<ADTSMeta> DetectMediaType(char* buffer, std::size_t len) {
     if (len < 7) {
         return std::nullopt;
     }

src/audio_core/hle/wmf_decoder_utils.h

@@ -29,6 +29,14 @@ struct MFRelease {
     };
 };
 
+template <>
+struct MFRelease<IMFTransform> {
+    void operator()(IMFTransform* pointer) const {
+        MFShutdownObject(pointer);
+        pointer->Release();
+    };
+};
+
 // wrapper facilities for dealing with pointers
 template <typename T>
 using unique_mfptr = std::unique_ptr<T, MFRelease<T>>;
@@ -67,13 +75,13 @@ struct ADTSMeta {
 // exported functions
 bool MFCoInit();
 unique_mfptr<IMFTransform> MFDecoderInit(GUID audio_format = MFAudioFormat_AAC);
-void MFDeInit(IMFTransform* transform);
+void MFDestroy();
 unique_mfptr<IMFSample> CreateSample(void* data, DWORD len, DWORD alignment = 1,
                                      LONGLONG duration = 0);
 bool SelectInputMediaType(IMFTransform* transform, int in_stream_id, const ADTSData& adts,
-                          UINT8* user_data, UINT32 user_data_len,
+                          const UINT8* user_data, UINT32 user_data_len,
                           GUID audio_format = MFAudioFormat_AAC);
-std::optional<ADTSMeta> DetectMediaType(char* buffer, size_t len);
+std::optional<ADTSMeta> DetectMediaType(char* buffer, std::size_t len);
 bool SelectOutputMediaType(IMFTransform* transform, int out_stream_id,
                            GUID audio_format = MFAudioFormat_PCM);
 void MFFlush(IMFTransform* transform);