| /* |
| * Copyright 2021 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 "FormatConverterBox.h" |
| |
| FormatConverterBox::FormatConverterBox(int32_t numSamples, |
| oboe::AudioFormat inputFormat, |
| oboe::AudioFormat outputFormat) { |
| mInputFormat = inputFormat; |
| mOutputFormat = outputFormat; |
| |
| mInputBuffer = std::make_unique<uint8_t[]>(numSamples * sizeof(int32_t)); |
| mOutputBuffer = std::make_unique<uint8_t[]>(numSamples * sizeof(int32_t)); |
| |
| mSource.reset(); |
| switch (mInputFormat) { |
| case oboe::AudioFormat::I16: |
| mSource = std::make_unique<oboe::flowgraph::SourceI16>(1); |
| break; |
| case oboe::AudioFormat::I24: |
| mSource = std::make_unique<oboe::flowgraph::SourceI24>(1); |
| break; |
| case oboe::AudioFormat::I32: |
| mSource = std::make_unique<oboe::flowgraph::SourceI32>(1); |
| break; |
| case oboe::AudioFormat::Float: |
| case oboe::AudioFormat::Invalid: |
| case oboe::AudioFormat::Unspecified: |
| mSource = std::make_unique<oboe::flowgraph::SourceFloat>(1); |
| break; |
| } |
| |
| mSink.reset(); |
| switch (mOutputFormat) { |
| case oboe::AudioFormat::I16: |
| mSink = std::make_unique<oboe::flowgraph::SinkI16>(1); |
| break; |
| case oboe::AudioFormat::I24: |
| mSink = std::make_unique<oboe::flowgraph::SinkI24>(1); |
| break; |
| case oboe::AudioFormat::I32: |
| mSink = std::make_unique<oboe::flowgraph::SinkI32>(1); |
| break; |
| case oboe::AudioFormat::Float: |
| case oboe::AudioFormat::Invalid: |
| case oboe::AudioFormat::Unspecified: |
| mSink = std::make_unique<oboe::flowgraph::SinkFloat>(1); |
| break; |
| } |
| |
| if (mSource && mSink) { |
| mSource->output.connect(&mSink->input); |
| mSink->pullReset(); |
| } |
| } |
| |
| int32_t FormatConverterBox::convertInternalBuffers(int32_t numSamples) { |
| return convert(getOutputBuffer(), numSamples, getInputBuffer()); |
| } |
| |
| int32_t FormatConverterBox::convertToInternalOutput(int32_t numSamples, const void *inputBuffer) { |
| return convert(getOutputBuffer(), numSamples, inputBuffer); |
| } |
| |
| int32_t FormatConverterBox::convertFromInternalInput(void *outputBuffer, int32_t numSamples) { |
| return convert(outputBuffer, numSamples, getInputBuffer()); |
| } |
| |
| int32_t FormatConverterBox::convert(void *outputBuffer, int32_t numSamples, const void *inputBuffer) { |
| mSource->setData(inputBuffer, numSamples); |
| return mSink->read(outputBuffer, numSamples); |
| } |