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author | Kelebek1 <eeeedddccc@hotmail.co.uk> | 2023-08-31 16:09:15 +0200 |
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committer | Liam <byteslice@airmail.cc> | 2023-09-16 17:56:25 +0200 |
commit | 67e2d5c28b8423c4f3f1d5b00f87325684158a6f (patch) | |
tree | e419a2bb6c064ddc69a49046705b6187772fee48 /src/audio_core/opus/decoder.cpp | |
parent | Merge pull request #11519 from german77/system-policy (diff) | |
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Diffstat (limited to '')
-rw-r--r-- | src/audio_core/opus/decoder.cpp | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/src/audio_core/opus/decoder.cpp b/src/audio_core/opus/decoder.cpp new file mode 100644 index 000000000..5b23fce14 --- /dev/null +++ b/src/audio_core/opus/decoder.cpp @@ -0,0 +1,179 @@ +// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "audio_core/opus/decoder.h"
+#include "audio_core/opus/hardware_opus.h"
+#include "audio_core/opus/parameters.h"
+#include "common/alignment.h"
+#include "common/swap.h"
+#include "core/core.h"
+
+namespace AudioCore::OpusDecoder {
+using namespace Service::Audio;
+namespace {
+OpusPacketHeader ReverseHeader(OpusPacketHeader header) {
+ OpusPacketHeader out;
+ out.size = Common::swap32(header.size);
+ out.final_range = Common::swap32(header.final_range);
+ return out;
+}
+} // namespace
+
+OpusDecoder::OpusDecoder(Core::System& system_, HardwareOpus& hardware_opus_)
+ : system{system_}, hardware_opus{hardware_opus_} {}
+
+OpusDecoder::~OpusDecoder() {
+ if (decode_object_initialized) {
+ hardware_opus.ShutdownDecodeObject(shared_buffer.get(), shared_buffer_size);
+ }
+}
+
+Result OpusDecoder::Initialize(OpusParametersEx& params, Kernel::KTransferMemory* transfer_memory,
+ u64 transfer_memory_size) {
+ auto frame_size{params.use_large_frame_size ? 5760 : 1920};
+ shared_buffer_size = transfer_memory_size;
+ shared_buffer = std::make_unique<u8[]>(shared_buffer_size);
+ shared_memory_mapped = true;
+
+ buffer_size =
+ Common::AlignUp((frame_size * params.channel_count) / (48'000 / params.sample_rate), 16);
+
+ out_data = {shared_buffer.get() + shared_buffer_size - buffer_size, buffer_size};
+ size_t in_data_size{0x600u};
+ in_data = {out_data.data() - in_data_size, in_data_size};
+
+ ON_RESULT_FAILURE {
+ if (shared_memory_mapped) {
+ shared_memory_mapped = false;
+ ASSERT(R_SUCCEEDED(hardware_opus.UnmapMemory(shared_buffer.get(), shared_buffer_size)));
+ }
+ };
+
+ R_TRY(hardware_opus.InitializeDecodeObject(params.sample_rate, params.channel_count,
+ shared_buffer.get(), shared_buffer_size));
+
+ sample_rate = params.sample_rate;
+ channel_count = params.channel_count;
+ use_large_frame_size = params.use_large_frame_size;
+ decode_object_initialized = true;
+ R_SUCCEED();
+}
+
+Result OpusDecoder::Initialize(OpusMultiStreamParametersEx& params,
+ Kernel::KTransferMemory* transfer_memory, u64 transfer_memory_size) {
+ auto frame_size{params.use_large_frame_size ? 5760 : 1920};
+ shared_buffer_size = transfer_memory_size;
+ shared_buffer = std::make_unique<u8[]>(shared_buffer_size);
+ shared_memory_mapped = true;
+
+ buffer_size =
+ Common::AlignUp((frame_size * params.channel_count) / (48'000 / params.sample_rate), 16);
+
+ out_data = {shared_buffer.get() + shared_buffer_size - buffer_size, buffer_size};
+ size_t in_data_size{Common::AlignUp(1500ull * params.total_stream_count, 64u)};
+ in_data = {out_data.data() - in_data_size, in_data_size};
+
+ ON_RESULT_FAILURE {
+ if (shared_memory_mapped) {
+ shared_memory_mapped = false;
+ ASSERT(R_SUCCEEDED(hardware_opus.UnmapMemory(shared_buffer.get(), shared_buffer_size)));
+ }
+ };
+
+ R_TRY(hardware_opus.InitializeMultiStreamDecodeObject(
+ params.sample_rate, params.channel_count, params.total_stream_count,
+ params.stereo_stream_count, params.mappings.data(), shared_buffer.get(),
+ shared_buffer_size));
+
+ sample_rate = params.sample_rate;
+ channel_count = params.channel_count;
+ total_stream_count = params.total_stream_count;
+ stereo_stream_count = params.stereo_stream_count;
+ use_large_frame_size = params.use_large_frame_size;
+ decode_object_initialized = true;
+ R_SUCCEED();
+}
+
+Result OpusDecoder::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) {
+ u32 out_samples;
+ u64 time_taken{};
+
+ R_UNLESS(input_data.size_bytes() > sizeof(OpusPacketHeader), ResultInputDataTooSmall);
+
+ auto* header_p{reinterpret_cast<const OpusPacketHeader*>(input_data.data())};
+ OpusPacketHeader header{ReverseHeader(*header_p)};
+
+ R_UNLESS(in_data.size_bytes() >= header.size &&
+ header.size + sizeof(OpusPacketHeader) <= input_data.size_bytes(),
+ ResultBufferTooSmall);
+
+ if (!shared_memory_mapped) {
+ R_TRY(hardware_opus.MapMemory(shared_buffer.get(), shared_buffer_size));
+ shared_memory_mapped = true;
+ }
+
+ std::memcpy(in_data.data(), input_data.data() + sizeof(OpusPacketHeader), header.size);
+
+ R_TRY(hardware_opus.DecodeInterleaved(out_samples, out_data.data(), out_data.size_bytes(),
+ channel_count, in_data.data(), header.size,
+ shared_buffer.get(), time_taken, reset));
+
+ std::memcpy(output_data.data(), out_data.data(), out_samples * channel_count * sizeof(s16));
+
+ *out_data_size = header.size + sizeof(OpusPacketHeader);
+ *out_sample_count = out_samples;
+ if (out_time_taken) {
+ *out_time_taken = time_taken / 1000;
+ }
+ R_SUCCEED();
+}
+
+Result OpusDecoder::SetContext([[maybe_unused]] std::span<const u8> context) {
+ R_SUCCEED_IF(shared_memory_mapped);
+ shared_memory_mapped = true;
+ R_RETURN(hardware_opus.MapMemory(shared_buffer.get(), shared_buffer_size));
+}
+
+Result OpusDecoder::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) {
+ u32 out_samples;
+ u64 time_taken{};
+
+ R_UNLESS(input_data.size_bytes() > sizeof(OpusPacketHeader), ResultInputDataTooSmall);
+
+ auto* header_p{reinterpret_cast<const OpusPacketHeader*>(input_data.data())};
+ OpusPacketHeader header{ReverseHeader(*header_p)};
+
+ LOG_ERROR(Service_Audio, "header size 0x{:X} input data size 0x{:X} in_data size 0x{:X}",
+ header.size, input_data.size_bytes(), in_data.size_bytes());
+
+ R_UNLESS(in_data.size_bytes() >= header.size &&
+ header.size + sizeof(OpusPacketHeader) <= input_data.size_bytes(),
+ ResultBufferTooSmall);
+
+ if (!shared_memory_mapped) {
+ R_TRY(hardware_opus.MapMemory(shared_buffer.get(), shared_buffer_size));
+ shared_memory_mapped = true;
+ }
+
+ std::memcpy(in_data.data(), input_data.data() + sizeof(OpusPacketHeader), header.size);
+
+ R_TRY(hardware_opus.DecodeInterleavedForMultiStream(
+ out_samples, out_data.data(), out_data.size_bytes(), channel_count, in_data.data(),
+ header.size, shared_buffer.get(), time_taken, reset));
+
+ std::memcpy(output_data.data(), out_data.data(), out_samples * channel_count * sizeof(s16));
+
+ *out_data_size = header.size + sizeof(OpusPacketHeader);
+ *out_sample_count = out_samples;
+ if (out_time_taken) {
+ *out_time_taken = time_taken / 1000;
+ }
+ R_SUCCEED();
+}
+
+} // namespace AudioCore::OpusDecoder
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