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61 lines
2.7 KiB
61 lines
2.7 KiB
/*
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* Copyright (C) 2014 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_AUDIO_FAST_CAPTURE_STATE_H
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#define ANDROID_AUDIO_FAST_CAPTURE_STATE_H
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#include <media/nbaio/NBAIO.h>
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#include <media/AudioBufferProvider.h>
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#include "FastThreadState.h"
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#include <private/media/AudioTrackShared.h>
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namespace android {
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// Represent a single state of the fast capture
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struct FastCaptureState : FastThreadState {
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FastCaptureState();
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/*virtual*/ ~FastCaptureState();
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// all pointer fields use raw pointers; objects are owned and ref-counted by RecordThread
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NBAIO_Source* mInputSource; // HAL input device, must already be negotiated
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// FIXME by renaming, could pull up these fields to FastThreadState
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int mInputSourceGen; // increment when mInputSource is assigned
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NBAIO_Sink* mPipeSink; // after reading from input source, write to this pipe sink
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int mPipeSinkGen; // increment when mPipeSink is assigned
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size_t mFrameCount; // number of frames per fast capture buffer
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audio_track_cblk_t* mCblk; // control block for the single fast client, or NULL
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audio_format_t mFastPatchRecordFormat = AUDIO_FORMAT_INVALID;
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AudioBufferProvider* mFastPatchRecordBufferProvider = nullptr; // a reference to a patch
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// record in fast mode
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bool mSilenceCapture = false; // request to silence capture for fast track.
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// note: this also silences the normal mixer pipe
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// Extends FastThreadState::Command
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static const Command
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// The following commands also process configuration changes, and can be "or"ed:
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READ = 0x8, // read from input source
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WRITE = 0x10, // write to pipe sink
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READ_WRITE = 0x18; // read from input source and write to pipe sink
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// never returns NULL; asserts if command is invalid
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static const char *commandToString(Command command);
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}; // struct FastCaptureState
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} // namespace android
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#endif // ANDROID_AUDIO_FAST_CAPTURE_STATE_H
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