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Diffstat (limited to 'apps/OboeTester/app/src/main/cpp/FormatConverterBox.h')
-rw-r--r-- | apps/OboeTester/app/src/main/cpp/FormatConverterBox.h | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/apps/OboeTester/app/src/main/cpp/FormatConverterBox.h b/apps/OboeTester/app/src/main/cpp/FormatConverterBox.h new file mode 100644 index 00000000..782f9e0c --- /dev/null +++ b/apps/OboeTester/app/src/main/cpp/FormatConverterBox.h @@ -0,0 +1,101 @@ +/* + * 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. + */ + +#ifndef OBOETESTER_FORMAT_CONVERTER_BOX_H +#define OBOETESTER_FORMAT_CONVERTER_BOX_H + +#include <unistd.h> +#include <sys/types.h> + +#include "oboe/Oboe.h" +#include "flowgraph/SinkFloat.h" +#include "flowgraph/SinkI16.h" +#include "flowgraph/SinkI24.h" +#include "flowgraph/SinkI32.h" +#include "flowgraph/SourceFloat.h" +#include "flowgraph/SourceI16.h" +#include "flowgraph/SourceI24.h" +#include "flowgraph/SourceI32.h" + +/** + * Use flowgraph modules to convert between the various data formats. + * + * Note that this does not do channel conversions. + */ + +class FormatConverterBox { +public: + FormatConverterBox(int32_t numSamples, + oboe::AudioFormat inputFormat, + oboe::AudioFormat outputFormat); + + /** + * @return internal buffer used to store input data + */ + void *getOutputBuffer() { + return (void *) mOutputBuffer.get(); + }; + /** + * @return internal buffer used to store output data + */ + void *getInputBuffer() { + return (void *) mInputBuffer.get(); + }; + + /** Convert the data from inputFormat to outputFormat + * using both internal buffers. + */ + int32_t convertInternalBuffers(int32_t numSamples); + + /** + * Convert data from external buffer into internal output buffer. + * @param numSamples + * @param inputBuffer + * @return + */ + int32_t convertToInternalOutput(int32_t numSamples, const void *inputBuffer); + + /** + * + * Convert data from internal input buffer into external output buffer. + * @param outputBuffer + * @param numSamples + * @return + */ + int32_t convertFromInternalInput(void *outputBuffer, int32_t numSamples); + + /** + * Convert data formats between the specified external buffers. + * @param outputBuffer + * @param numSamples + * @param inputBuffer + * @return + */ + int32_t convert(void *outputBuffer, int32_t numSamples, const void *inputBuffer); + +private: + oboe::AudioFormat mInputFormat{oboe::AudioFormat::Invalid}; + oboe::AudioFormat mOutputFormat{oboe::AudioFormat::Invalid}; + + std::unique_ptr<uint8_t[]> mInputBuffer; + std::unique_ptr<uint8_t[]> mOutputBuffer; + + std::unique_ptr<oboe::flowgraph::FlowGraphSourceBuffered> mSource; + std::unique_ptr<oboe::flowgraph::FlowGraphSink> mSink; +}; + + +#endif //OBOETESTER_FORMAT_CONVERTER_BOX_H |