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/*
* Copyright (C) 2014 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 ANDROID_AUDIO_FAST_CAPTURE_STATE_H
#define ANDROID_AUDIO_FAST_CAPTURE_STATE_H
#include <media/nbaio/NBAIO.h>
#include "FastThreadState.h"
#include <private/media/AudioTrackShared.h>
namespace android {
// Represent a single state of the fast capture
struct FastCaptureState : FastThreadState {
FastCaptureState();
/*virtual*/ ~FastCaptureState();
// all pointer fields use raw pointers; objects are owned and ref-counted by RecordThread
NBAIO_Source *mInputSource; // HAL input device, must already be negotiated
// FIXME by renaming, could pull up these fields to FastThreadState
int mInputSourceGen; // increment when mInputSource is assigned
NBAIO_Sink *mPipeSink; // after reading from input source, write to this pipe sink
int mPipeSinkGen; // increment when mPipeSink is assigned
size_t mFrameCount; // number of frames per fast capture buffer
audio_track_cblk_t *mCblk; // control block for the single fast client, or NULL
// Extends FastThreadState::Command
static const Command
// The following commands also process configuration changes, and can be "or"ed:
READ = 0x8, // read from input source
WRITE = 0x10, // write to pipe sink
READ_WRITE = 0x18; // read from input source and write to pipe sink
}; // struct FastCaptureState
} // namespace android
#endif // ANDROID_AUDIO_FAST_CAPTURE_STATE_H
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