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Merge pull request #20 from liushuyu/dsp_aac

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Media Foundation Improvement
This commit is contained in:
Ben 2019-02-14 10:24:57 +01:00 committed by GitHub
commit c93df434c5
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GPG key ID: 4AEE18F83AFDEB23
5 changed files with 93 additions and 92 deletions
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2
src/audio_core/hle/adts.h
View file

@ -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);

2
src/audio_core/hle/adts_reader.cpp
View file

@ -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;

105
src/audio_core/hle/wmf_decoder.cpp
View file

@ -16,14 +16,12 @@ public:
private:
std::optional<BinaryResponse> Initalize(const BinaryRequest& request);
void Clear();
std::optional<BinaryResponse> Decode(const BinaryRequest& request);
MFOutputState DecodingLoop(ADTSData adts_header, std::array<std::vector<u8>, 2>& out_streams);
bool initalized = false;
bool selected = false;
bool transform_initialized = false;
bool format_selected = false;
Memory::MemorySystem& memory;
@ -33,10 +31,51 @@ private:
};
WMFDecoder::Impl::Impl(Memory::MemorySystem& memory) : memory(memory) {
MFCoInit();
HRESULT hr = S_OK;
hr = CoInitialize(NULL);
// S_FALSE will be returned when COM has already been initialized
if (hr != S_OK && hr != S_FALSE) {
ReportError("Failed to start COM components", hr);
}
// lite startup is faster and all what we need is included
hr = MFStartup(MF_VERSION, MFSTARTUP_LITE);
if (hr != S_OK) {
// Do you know you can't initialize MF in test mode or safe mode?
ReportError("Failed to initialize Media Foundation", hr);
}
LOG_INFO(Audio_DSP, "Media Foundation activated");
// initialize transform
transform = MFDecoderInit();
if (transform == nullptr) {
LOG_CRITICAL(Audio_DSP, "Can't initialize decoder");
return;
}
hr = transform->GetStreamIDs(1, &in_stream_id, 1, &out_stream_id);
if (hr == E_NOTIMPL) {
// if not implemented, it means this MFT does not assign stream ID for you
in_stream_id = 0;
out_stream_id = 0;
} else if (FAILED(hr)) {
ReportError("Decoder failed to initialize the stream ID", hr);
return;
}
transform_initialized = true;
}
WMFDecoder::Impl::~Impl() = default;
WMFDecoder::Impl::~Impl() {
if (transform_initialized) {
MFFlush(transform.get());
// delete the transform object before shutting down MF
// otherwise access violation will occur
transform.reset();
}
MFShutdown();
CoUninitialize();
}
std::optional<BinaryResponse> WMFDecoder::Impl::ProcessRequest(const BinaryRequest& request) {
if (request.codec != DecoderCodec::AAC) {
@ -65,41 +104,12 @@ std::optional<BinaryResponse> WMFDecoder::Impl::ProcessRequest(const BinaryReque
}
std::optional<BinaryResponse> WMFDecoder::Impl::Initalize(const BinaryRequest& request) {
if (initalized) {
Clear();
}
BinaryResponse response;
std::memcpy(&response, &request, sizeof(response));
response.unknown1 = 0x0;
transform = MFDecoderInit();
if (transform == nullptr) {
LOG_CRITICAL(Audio_DSP, "Can't init decoder");
format_selected = false; // select format again if application request initialize the DSP
return response;
}
HRESULT hr = transform->GetStreamIDs(1, &in_stream_id, 1, &out_stream_id);
if (hr == E_NOTIMPL) {
// if not implemented, it means this MFT does not assign stream ID for you
in_stream_id = 0;
out_stream_id = 0;
} else if (FAILED(hr)) {
ReportError("Decoder failed to initialize the stream ID", hr);
return response;
}
initalized = true;
return response;
}
void WMFDecoder::Impl::Clear() {
if (initalized) {
MFFlush(transform.get());
MFDeInit(transform.get());
}
initalized = false;
selected = false;
}
MFOutputState WMFDecoder::Impl::DecodingLoop(ADTSData adts_header,
@ -117,7 +127,7 @@ 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);
@ -135,8 +145,8 @@ MFOutputState WMFDecoder::Impl::DecodingLoop(ADTSData adts_header,
// for status = 2, reset MF
if (output_status == MFOutputState::NeedReconfig) {
Clear();
return MFOutputState::FatalError;
format_selected = false;
return MFOutputState::NeedReconfig;
}
// for status = 3, try again with new buffer
@ -161,8 +171,8 @@ 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 (!transform_initialized) {
LOG_DEBUG(Audio_DSP, "Decoder not initialized");
// This is a hack to continue games when decoder failed to initialize
return response;
}
@ -177,6 +187,7 @@ std::optional<BinaryResponse> WMFDecoder::Impl::Decode(const BinaryRequest& requ
std::array<std::vector<u8>, 2> out_streams;
unique_mfptr<IMFSample> sample;
MFInputState input_status = MFInputState::OK;
MFOutputState output_status = MFOutputState::OK;
std::optional<ADTSMeta> adts_meta = DetectMediaType((char*)data, request.size);
if (!adts_meta) {
@ -186,7 +197,7 @@ std::optional<BinaryResponse> WMFDecoder::Impl::Decode(const BinaryRequest& requ
response.num_channels = adts_meta->ADTSHeader.channels;
if (!selected) {
if (!format_selected) {
LOG_DEBUG(Audio_DSP, "New ADTS stream: channels = {}, sample rate = {}",
adts_meta->ADTSHeader.channels, adts_meta->ADTSHeader.samplerate);
SelectInputMediaType(transform.get(), in_stream_id, adts_meta->ADTSHeader,
@ -196,7 +207,7 @@ std::optional<BinaryResponse> WMFDecoder::Impl::Decode(const BinaryRequest& requ
// cache the result from detect_mediatype and call select_*_mediatype only once
// This could increase performance very slightly
transform->ProcessMessage(MFT_MESSAGE_NOTIFY_BEGIN_STREAMING, 0);
selected = true;
format_selected = true;
}
sample = CreateSample((void*)data, request.size, 1, 0);
@ -204,8 +215,9 @@ std::optional<BinaryResponse> WMFDecoder::Impl::Decode(const BinaryRequest& requ
while (true) {
input_status = SendSample(transform.get(), in_stream_id, sample.get());
output_status = DecodingLoop(adts_meta->ADTSHeader, out_streams);
if (DecodingLoop(adts_meta->ADTSHeader, out_streams) == MFOutputState::FatalError) {
if (output_status == MFOutputState::FatalError) {
// if the decode issues are caused by MFT not accepting new samples, try again
// NOTICE: you are required to check the output even if you already knew/guessed
// MFT didn't accept the input sample
@ -216,6 +228,11 @@ std::optional<BinaryResponse> WMFDecoder::Impl::Decode(const BinaryRequest& requ
LOG_ERROR(Audio_DSP, "Errors occurred when receiving output");
return response;
} else if (output_status == MFOutputState::NeedReconfig) {
// flush the transform
MFFlush(transform.get());
// decode again
return this->Decode(request);
}
break; // jump out of the loop if at least we don't have obvious issues

50
src/audio_core/hle/wmf_decoder_utils.cpp
View file

@ -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
@ -9,42 +10,21 @@ 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);
}
bool MFCoInit() {
HRESULT hr = S_OK;
hr = CoInitialize(NULL);
// S_FALSE will be returned when COM has already been initialized
if (hr != S_OK && hr != S_FALSE) {
ReportError("Failed to start COM components", hr);
return false;
}
// lite startup is faster and all what we need is included
hr = MFStartup(MF_VERSION, MFSTARTUP_LITE);
if (hr != S_OK) {
// Do you know you can't initialize MF in test mode or safe mode?
ReportError("Failed to initialize Media Foundation", hr);
return false;
}
LOG_INFO(Audio_DSP, "Media Foundation activated");
return true;
}
unique_mfptr<IMFTransform> MFDecoderInit(GUID audio_format) {
HRESULT hr = S_OK;
MFT_REGISTER_TYPE_INFO reg = {0};
@ -72,6 +52,8 @@ unique_mfptr<IMFTransform> MFDecoderInit(GUID audio_format) {
if (FAILED(hr))
transform = nullptr;
activate[n]->Release();
if (SUCCEEDED(hr))
break;
}
if (transform == nullptr) {
ReportError("Failed to initialize MFT", hr);
@ -79,15 +61,11 @@ unique_mfptr<IMFTransform> MFDecoderInit(GUID audio_format) {
return nullptr;
}
CoTaskMemFree(activate);
return std::move(transform);
return transform;
}
void MFDeInit(IMFTransform* transform) {
MFShutdownObject(transform);
CoUninitialize();
}
unique_mfptr<IMFSample> CreateSample(void* data, DWORD len, DWORD alignment, LONGLONG duration) {
unique_mfptr<IMFSample> CreateSample(const void* data, DWORD len, DWORD alignment,
LONGLONG duration) {
HRESULT hr = S_OK;
unique_mfptr<IMFMediaBuffer> buf;
unique_mfptr<IMFSample> sample;
@ -126,11 +104,11 @@ 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 +187,7 @@ 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;
}

16
src/audio_core/hle/wmf_decoder_utils.h
View file

@ -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>>;
@ -65,15 +73,13 @@ struct ADTSMeta {
};
// exported functions
bool MFCoInit();
unique_mfptr<IMFTransform> MFDecoderInit(GUID audio_format = MFAudioFormat_AAC);
void MFDeInit(IMFTransform* transform);
unique_mfptr<IMFSample> CreateSample(void* data, DWORD len, DWORD alignment = 1,
unique_mfptr<IMFSample> CreateSample(const 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);