From f91df1b368a140abd37c80b204bd48d78778cc43 Mon Sep 17 00:00:00 2001 From: Glenn Kasten Date: Thu, 13 Mar 2014 14:59:31 -0700 Subject: Start adding FastCapture based on FastThread WIP This version supports at most one fast capture client. Change-Id: Idf609bfc80ae22433433d66a5232c043c65506df --- services/audioflinger/FastCaptureState.h | 51 ++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 services/audioflinger/FastCaptureState.h (limited to 'services/audioflinger/FastCaptureState.h') diff --git a/services/audioflinger/FastCaptureState.h b/services/audioflinger/FastCaptureState.h new file mode 100644 index 0000000..29c865a --- /dev/null +++ b/services/audioflinger/FastCaptureState.h @@ -0,0 +1,51 @@ +/* + * 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 +#include "FastThreadState.h" +#include + +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 -- cgit v1.1