| Phil Burk | 204a163 | 2017-01-03 17:23:43 -0800 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2016 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 OBOE_AUDIOSTREAMINTERNAL_H |
| 18 | #define OBOE_AUDIOSTREAMINTERNAL_H |
| 19 | |
| 20 | #include <stdint.h> |
| 21 | #include <oboe/OboeAudio.h> |
| 22 | |
| 23 | #include "binding/IOboeAudioService.h" |
| 24 | #include "binding/AudioEndpointParcelable.h" |
| 25 | #include "client/IsochronousClockModel.h" |
| 26 | #include "client/AudioEndpoint.h" |
| 27 | #include "core/AudioStream.h" |
| 28 | |
| 29 | using android::sp; |
| 30 | using android::IOboeAudioService; |
| 31 | |
| 32 | namespace oboe { |
| 33 | |
| 34 | // A stream that talks to the OboeService or directly to a HAL. |
| 35 | class AudioStreamInternal : public AudioStream { |
| 36 | |
| 37 | public: |
| 38 | AudioStreamInternal(); |
| 39 | virtual ~AudioStreamInternal(); |
| 40 | |
| 41 | // =========== Begin ABSTRACT methods =========================== |
| 42 | virtual oboe_result_t requestStart() override; |
| 43 | |
| 44 | virtual oboe_result_t requestPause() override; |
| 45 | |
| 46 | virtual oboe_result_t requestFlush() override; |
| 47 | |
| 48 | virtual oboe_result_t requestStop() override; |
| 49 | |
| 50 | // TODO use oboe_clockid_t all the way down to AudioClock |
| 51 | virtual oboe_result_t getTimestamp(clockid_t clockId, |
| 52 | oboe_position_frames_t *framePosition, |
| 53 | oboe_nanoseconds_t *timeNanoseconds) override; |
| 54 | |
| 55 | |
| 56 | virtual oboe_result_t updateState() override; |
| 57 | // =========== End ABSTRACT methods =========================== |
| 58 | |
| 59 | virtual oboe_result_t open(const AudioStreamBuilder &builder) override; |
| 60 | |
| 61 | virtual oboe_result_t close() override; |
| 62 | |
| 63 | virtual oboe_result_t write(const void *buffer, |
| 64 | int32_t numFrames, |
| 65 | oboe_nanoseconds_t timeoutNanoseconds) override; |
| 66 | |
| 67 | virtual oboe_result_t waitForStateChange(oboe_stream_state_t currentState, |
| 68 | oboe_stream_state_t *nextState, |
| 69 | oboe_nanoseconds_t timeoutNanoseconds) override; |
| 70 | |
| 71 | virtual oboe_result_t setBufferSize(oboe_size_frames_t requestedFrames, |
| 72 | oboe_size_frames_t *actualFrames) override; |
| 73 | |
| 74 | virtual oboe_size_frames_t getBufferSize() const override; |
| 75 | |
| 76 | virtual oboe_size_frames_t getBufferCapacity() const override; |
| 77 | |
| 78 | virtual oboe_size_frames_t getFramesPerBurst() const override; |
| 79 | |
| 80 | virtual oboe_position_frames_t getFramesRead() override; |
| 81 | |
| 82 | virtual int32_t getXRunCount() const override { |
| 83 | return mXRunCount; |
| 84 | } |
| 85 | |
| 86 | virtual oboe_result_t registerThread() override; |
| 87 | |
| 88 | virtual oboe_result_t unregisterThread() override; |
| 89 | |
| 90 | protected: |
| 91 | |
| 92 | oboe_result_t processCommands(); |
| 93 | |
| 94 | /** |
| 95 | * Low level write that will not block. It will just write as much as it can. |
| 96 | * |
| 97 | * It passed back a recommended time to wake up if wakeTimePtr is not NULL. |
| 98 | * |
| 99 | * @return the number of frames written or a negative error code. |
| 100 | */ |
| 101 | virtual oboe_result_t writeNow(const void *buffer, |
| 102 | int32_t numFrames, |
| 103 | oboe_nanoseconds_t currentTimeNanos, |
| 104 | oboe_nanoseconds_t *wakeTimePtr); |
| 105 | |
| 106 | void onFlushFromServer(); |
| 107 | |
| 108 | oboe_result_t onEventFromServer(OboeServiceMessage *message); |
| 109 | |
| 110 | oboe_result_t onTimestampFromServer(OboeServiceMessage *message); |
| 111 | |
| 112 | private: |
| 113 | IsochronousClockModel mClockModel; |
| 114 | AudioEndpoint mAudioEndpoint; |
| 115 | oboe_handle_t mServiceStreamHandle; |
| 116 | EndpointDescriptor mEndpointDescriptor; |
| 117 | sp<IOboeAudioService> mService; |
| 118 | // Offset from underlying frame position. |
| 119 | oboe_position_frames_t mFramesOffsetFromService = 0; |
| 120 | oboe_position_frames_t mLastFramesRead = 0; |
| 121 | oboe_size_frames_t mFramesPerBurst; |
| 122 | int32_t mXRunCount = 0; |
| 123 | |
| 124 | void processTimestamp(uint64_t position, oboe_nanoseconds_t time); |
| 125 | }; |
| 126 | |
| 127 | } /* namespace oboe */ |
| 128 | |
| 129 | #endif //OBOE_AUDIOSTREAMINTERNAL_H |