From 6c655321e6b04b8648802e296bb5ca11d290ae68 Mon Sep 17 00:00:00 2001 From: swurl Date: Sat, 31 May 2025 02:33:02 -0400 Subject: Move dead submodules in-tree Signed-off-by: swurl --- .../oboe/src/flowgraph/ManyToMultiConverter.cpp | 47 ++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 externals/oboe/src/flowgraph/ManyToMultiConverter.cpp (limited to 'externals/oboe/src/flowgraph/ManyToMultiConverter.cpp') diff --git a/externals/oboe/src/flowgraph/ManyToMultiConverter.cpp b/externals/oboe/src/flowgraph/ManyToMultiConverter.cpp new file mode 100644 index 0000000000..4f973bc3ff --- /dev/null +++ b/externals/oboe/src/flowgraph/ManyToMultiConverter.cpp @@ -0,0 +1,47 @@ +/* + * Copyright 2018 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include + +#include "ManyToMultiConverter.h" + +using namespace FLOWGRAPH_OUTER_NAMESPACE::flowgraph; + +ManyToMultiConverter::ManyToMultiConverter(int32_t channelCount) + : inputs(channelCount) + , output(*this, channelCount) { + for (int i = 0; i < channelCount; i++) { + inputs[i] = std::make_unique(*this, 1); + } +} + +int32_t ManyToMultiConverter::onProcess(int32_t numFrames) { + int32_t channelCount = output.getSamplesPerFrame(); + + for (int ch = 0; ch < channelCount; ch++) { + const float *inputBuffer = inputs[ch]->getBuffer(); + float *outputBuffer = output.getBuffer() + ch; + + for (int i = 0; i < numFrames; i++) { + // read one, write into the proper interleaved output channel + float sample = *inputBuffer++; + *outputBuffer = sample; + outputBuffer += channelCount; // advance to next multichannel frame + } + } + return numFrames; +} + -- cgit v1.2.3