38 lines
1.3 KiB
C++
38 lines
1.3 KiB
C++
// Copyright (C) 2022 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "AudioUtil.h"
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#include <system/audio.h>
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namespace audio_proxy::service {
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int computeFrameSize(const AidlAudioConfig& config) {
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audio_format_t format = static_cast<audio_format_t>(config.format);
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if (!audio_has_proportional_frames(format)) {
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return sizeof(int8_t);
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}
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size_t channelSampleSize = audio_bytes_per_sample(format);
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return audio_channel_count_from_out_mask(
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static_cast<audio_channel_mask_t>(config.channelMask)) *
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channelSampleSize;
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}
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int64_t computeBufferSizeBytes(const AidlAudioConfig& config,
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int32_t bufferSizeMs) {
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return static_cast<int64_t>(bufferSizeMs) * config.sampleRateHz *
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computeFrameSize(config) / 1000;
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}
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} // namespace audio_proxy::service
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