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audio_core: Fix FDK AAC decoding. (#6530)

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Steveice10 2023-05-14 19:50:07 -07:00 • committed by GitHub
parent dc39eac916
commit 0768bd8ce0
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2 changed files with 29 additions and 32 deletions
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15
src/audio_core/hle/audiotoolbox_decoder.cpp
View file

@ -187,8 +187,8 @@ std::optional<BinaryResponse> AudioToolboxDecoder::Impl::Decode(const BinaryRequ
return std::nullopt; return std::nullopt;
} }
// 1024 samples, up to 2 channels each // Up to 2048 samples, up to 2 channels each
s16 decoder_output[2048]; s16 decoder_output[4096];
AudioBufferList out_buffer{1, AudioBufferList out_buffer{1,
{{ {{
output_format.mChannelsPerFrame, output_format.mChannelsPerFrame,
@ -208,8 +208,8 @@ std::optional<BinaryResponse> AudioToolboxDecoder::Impl::Decode(const BinaryRequ
// De-interleave samples. // De-interleave samples.
std::array<std::vector<s16>, 2> out_streams; std::array<std::vector<s16>, 2> out_streams;
auto num_frames = num_packets * output_format.mFramesPerPacket; auto num_frames = num_packets * output_format.mFramesPerPacket;
for (auto frame = 0; frame < num_frames; frame++) { for (u32 frame = 0; frame < num_frames; frame++) {
for (auto ch = 0; ch < output_format.mChannelsPerFrame; ch++) { for (u32 ch = 0; ch < output_format.mChannelsPerFrame; ch++) {
out_streams[ch].push_back( out_streams[ch].push_back(
decoder_output[(frame * output_format.mChannelsPerFrame) + ch]); decoder_output[(frame * output_format.mChannelsPerFrame) + ch]);
} }
@ -223,16 +223,17 @@ std::optional<BinaryResponse> AudioToolboxDecoder::Impl::Decode(const BinaryRequ
response.num_samples = num_frames; response.num_samples = num_frames;
// transfer the decoded buffer from vector to the FCRAM // transfer the decoded buffer from vector to the FCRAM
for (auto ch = 0; ch < out_streams.size(); ch++) { for (std::size_t ch = 0; ch < out_streams.size(); ch++) {
if (!out_streams[ch].empty()) { if (!out_streams[ch].empty()) {
auto byte_size = out_streams[ch].size() * bytes_per_sample;
auto dst = ch == 0 ? request.dst_addr_ch0 : request.dst_addr_ch1; auto dst = ch == 0 ? request.dst_addr_ch0 : request.dst_addr_ch1;
if (dst < Memory::FCRAM_PADDR || if (dst < Memory::FCRAM_PADDR ||
dst + out_streams[ch].size() > Memory::FCRAM_PADDR + Memory::FCRAM_SIZE) { dst + byte_size > Memory::FCRAM_PADDR + Memory::FCRAM_SIZE) {
LOG_ERROR(Audio_DSP, "Got out of bounds dst_addr_ch{} {:08x}", ch, dst); LOG_ERROR(Audio_DSP, "Got out of bounds dst_addr_ch{} {:08x}", ch, dst);
return {}; return {};
} }
std::memcpy(memory.GetFCRAMPointer(dst - Memory::FCRAM_PADDR), out_streams[ch].data(), std::memcpy(memory.GetFCRAMPointer(dst - Memory::FCRAM_PADDR), out_streams[ch].data(),
out_streams[ch].size() * bytes_per_sample); byte_size);
} }
} }

44
src/audio_core/hle/fdk_decoder.cpp
View file

@ -143,8 +143,8 @@ std::optional<BinaryResponse> FDKDecoder::Impl::Decode(const BinaryRequest& requ
// decoding loops // decoding loops
AAC_DECODER_ERROR result = AAC_DEC_OK; AAC_DECODER_ERROR result = AAC_DEC_OK;
// 8192 units of s16 are enough to hold one frame of AAC-LC or AAC-HE/v2 data // Up to 2048 samples, up to 2 channels each
s16 decoder_output[8192]; s16 decoder_output[4096];
// note that we don't free this pointer as it is automatically freed by fdk_aac // note that we don't free this pointer as it is automatically freed by fdk_aac
CStreamInfo* stream_info; CStreamInfo* stream_info;
// how many bytes to be queued into the decoder, decrementing from the buffer size // how many bytes to be queued into the decoder, decrementing from the buffer size
@ -162,19 +162,21 @@ std::optional<BinaryResponse> FDKDecoder::Impl::Decode(const BinaryRequest& requ
return std::nullopt; return std::nullopt;
} }
// get output from decoder // get output from decoder
result = aacDecoder_DecodeFrame(decoder, decoder_output, 8192, 0); result = aacDecoder_DecodeFrame(decoder, decoder_output,
sizeof(decoder_output) / sizeof(s16), 0);
if (result == AAC_DEC_OK) { if (result == AAC_DEC_OK) {
// get the stream information // get the stream information
stream_info = aacDecoder_GetStreamInfo(decoder); stream_info = aacDecoder_GetStreamInfo(decoder);
// fill the stream information for binary response // fill the stream information for binary response
response.sample_rate = GetSampleRateEnum(stream_info->sampleRate); response.sample_rate = GetSampleRateEnum(stream_info->sampleRate);
response.num_channels = stream_info->aacNumChannels; response.num_channels = stream_info->numChannels;
response.num_samples = stream_info->frameSize; response.num_samples = stream_info->frameSize;
// fill the output // fill the output
// the sample size = frame_size * channel_counts // the sample size = frame_size * channel_counts
for (int sample = 0; sample < (stream_info->frameSize * 2); sample++) { for (int sample = 0; sample < stream_info->frameSize; sample++) {
for (int ch = 0; ch < stream_info->aacNumChannels; ch++) { for (int ch = 0; ch < stream_info->numChannels; ch++) {
out_streams[ch].push_back(decoder_output[(sample * 2) + 1]); out_streams[ch].push_back(
decoder_output[(sample * stream_info->numChannels) + ch]);
} }
} }
} else if (result == AAC_DEC_TRANSPORT_SYNC_ERROR) { } else if (result == AAC_DEC_TRANSPORT_SYNC_ERROR) {
@ -186,28 +188,22 @@ std::optional<BinaryResponse> FDKDecoder::Impl::Decode(const BinaryRequest& requ
return std::nullopt; return std::nullopt;
} }
} }
// transfer the decoded buffer from vector to the FCRAM // transfer the decoded buffer from vector to the FCRAM
if (out_streams[0].size() != 0) { for (std::size_t ch = 0; ch < out_streams.size(); ch++) {
if (request.dst_addr_ch0 < Memory::FCRAM_PADDR || if (!out_streams[ch].empty()) {
request.dst_addr_ch0 + out_streams[0].size() > auto byte_size = out_streams[ch].size() * sizeof(s16);
Memory::FCRAM_PADDR + Memory::FCRAM_SIZE) { auto dst = ch == 0 ? request.dst_addr_ch0 : request.dst_addr_ch1;
LOG_ERROR(Audio_DSP, "Got out of bounds dst_addr_ch0 {:08x}", request.dst_addr_ch0); if (dst < Memory::FCRAM_PADDR ||
dst + byte_size > Memory::FCRAM_PADDR + Memory::FCRAM_SIZE) {
LOG_ERROR(Audio_DSP, "Got out of bounds dst_addr_ch{} {:08x}", ch, dst);
return {}; return {};
} }
std::memcpy(memory.GetFCRAMPointer(request.dst_addr_ch0 - Memory::FCRAM_PADDR), std::memcpy(memory.GetFCRAMPointer(dst - Memory::FCRAM_PADDR), out_streams[ch].data(),
out_streams[0].data(), out_streams[0].size()); byte_size);
}
} }
if (out_streams[1].size() != 0) {
if (request.dst_addr_ch1 < Memory::FCRAM_PADDR ||
request.dst_addr_ch1 + out_streams[1].size() >
Memory::FCRAM_PADDR + Memory::FCRAM_SIZE) {
LOG_ERROR(Audio_DSP, "Got out of bounds dst_addr_ch1 {:08x}", request.dst_addr_ch1);
return {};
}
std::memcpy(memory.GetFCRAMPointer(request.dst_addr_ch1 - Memory::FCRAM_PADDR),
out_streams[1].data(), out_streams[1].size());
}
return response; return response;
} }