68 lines
2.1 KiB
C
68 lines
2.1 KiB
C
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/*
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* Copyright (C) 2021 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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*/
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#ifndef ANDROID_LIBAUDIOPROCESSING_FUZZ_UTILS_H
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#define ANDROID_LIBAUDIOPROCESSING_FUZZ_UTILS_H
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#include <media/AudioBufferProvider.h>
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#include <system/audio.h>
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namespace android {
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class Provider : public AudioBufferProvider {
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const void* mAddr; // base address
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const size_t mNumFrames; // total frames
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const size_t mFrameSize; // size of each frame in bytes
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size_t mNextFrame; // index of next frame to provide
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size_t mUnrel; // number of frames not yet released
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public:
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Provider(const void* addr, size_t frames, size_t frameSize)
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: mAddr(addr),
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mNumFrames(frames),
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mFrameSize(frameSize),
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mNextFrame(0),
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mUnrel(0) {}
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status_t getNextBuffer(Buffer* buffer) override {
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if (buffer->frameCount > mNumFrames - mNextFrame) {
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buffer->frameCount = mNumFrames - mNextFrame;
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}
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mUnrel = buffer->frameCount;
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if (buffer->frameCount > 0) {
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buffer->raw = (char*)mAddr + mFrameSize * mNextFrame;
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return NO_ERROR;
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} else {
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buffer->raw = nullptr;
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return NOT_ENOUGH_DATA;
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}
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}
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void releaseBuffer(Buffer* buffer) override {
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if (buffer->frameCount > mUnrel) {
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mNextFrame += mUnrel;
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mUnrel = 0;
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} else {
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mNextFrame += buffer->frameCount;
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mUnrel -= buffer->frameCount;
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}
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buffer->frameCount = 0;
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buffer->raw = nullptr;
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}
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void reset() { mNextFrame = 0; }
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};
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} // namespace android
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#endif // ANDROID_LIBAUDIOPROCESSING_FUZZ_UTILS_H
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