| /* |
| * 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 <media/AudioBufferProvider.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 |
| |
| audio_format_t mFastPatchRecordFormat = AUDIO_FORMAT_INVALID; |
| AudioBufferProvider* mFastPatchRecordBufferProvider = nullptr; // a reference to a patch |
| // record in fast mode |
| bool mSilenceCapture = false; // request to silence capture for fast track. |
| // note: this also silences the normal mixer pipe |
| |
| // 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 |
| |
| // never returns NULL; asserts if command is invalid |
| static const char *commandToString(Command command); |
| }; // struct FastCaptureState |
| |
| } // namespace android |
| |
| #endif // ANDROID_AUDIO_FAST_CAPTURE_STATE_H |