1 files changed, 53 insertions, 0 deletions
diff --git a/src/audio_core/opus/decoder.h b/src/audio_core/opus/decoder.h
new file mode 100644
index 000000000..d08d8a4a4
--- /dev/null
+++ b/src/audio_core/opus/decoder.h
@@ -0,0 +1,53 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <span>
+
+#include "audio_core/opus/parameters.h"
+#include "common/common_types.h"
+#include "core/hle/kernel/k_transfer_memory.h"
+#include "core/hle/service/audio/errors.h"
+
+namespace Core {
+class System;
+}
+
+namespace AudioCore::OpusDecoder {
+class HardwareOpus;
+
+class OpusDecoder {
+public:
+    explicit OpusDecoder(Core::System& system, HardwareOpus& hardware_opus_);
+    ~OpusDecoder();
+
+    Result Initialize(OpusParametersEx& params, Kernel::KTransferMemory* transfer_memory,
+                      u64 transfer_memory_size);
+    Result Initialize(OpusMultiStreamParametersEx& params, Kernel::KTransferMemory* transfer_memory,
+                      u64 transfer_memory_size);
+    Result DecodeInterleaved(u32* out_data_size, u64* out_time_taken, u32* out_sample_count,
+                             std::span<const u8> input_data, std::span<u8> output_data, bool reset);
+    Result SetContext([[maybe_unused]] std::span<const u8> context);
+    Result DecodeInterleavedForMultiStream(u32* out_data_size, u64* out_time_taken,
+                                           u32* out_sample_count, std::span<const u8> input_data,
+                                           std::span<u8> output_data, bool reset);
+
+private:
+    Core::System& system;
+    HardwareOpus& hardware_opus;
+    std::unique_ptr<u8[]> shared_buffer{};
+    u64 shared_buffer_size;
+    std::span<u8> in_data{};
+    std::span<u8> out_data{};
+    u64 buffer_size{};
+    s32 sample_rate{};
+    s32 channel_count{};
+    bool use_large_frame_size{false};
+    s32 total_stream_count{};
+    s32 stereo_stream_count{};
+    bool shared_memory_mapped{false};
+    bool decode_object_initialized{false};
+};
+
+} // namespace AudioCore::OpusDecoder