1 /* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ANDROID_AUDIO_FAST_CAPTURE_STATE_H 18 #define ANDROID_AUDIO_FAST_CAPTURE_STATE_H 19 20 #include <media/nbaio/NBAIO.h> 21 #include <media/AudioBufferProvider.h> 22 #include "FastThreadState.h" 23 #include <private/media/AudioTrackShared.h> 24 25 namespace android { 26 27 // Represent a single state of the fast capture 28 struct FastCaptureState : FastThreadState { 29 FastCaptureState(); 30 /*virtual*/ ~FastCaptureState(); 31 32 // all pointer fields use raw pointers; objects are owned and ref-counted by RecordThread 33 NBAIO_Source* mInputSource; // HAL input device, must already be negotiated 34 // FIXME by renaming, could pull up these fields to FastThreadState 35 int mInputSourceGen; // increment when mInputSource is assigned 36 NBAIO_Sink* mPipeSink; // after reading from input source, write to this pipe sink 37 int mPipeSinkGen; // increment when mPipeSink is assigned 38 size_t mFrameCount; // number of frames per fast capture buffer 39 audio_track_cblk_t* mCblk; // control block for the single fast client, or NULL 40 41 audio_format_t mFastPatchRecordFormat = AUDIO_FORMAT_INVALID; 42 AudioBufferProvider* mFastPatchRecordBufferProvider = nullptr; // a reference to a patch 43 // record in fast mode 44 45 // Extends FastThreadState::Command 46 static const Command 47 // The following commands also process configuration changes, and can be "or"ed: 48 READ = 0x8, // read from input source 49 WRITE = 0x10, // write to pipe sink 50 READ_WRITE = 0x18; // read from input source and write to pipe sink 51 52 // never returns NULL; asserts if command is invalid 53 static const char *commandToString(Command command); 54 }; // struct FastCaptureState 55 56 } // namespace android 57 58 #endif // ANDROID_AUDIO_FAST_CAPTURE_STATE_H 59
