| Subhash Chandra Bose Naripeddy | e40a7cd | 2014-06-03 19:42:41 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (c) 2014, The Linux Foundation. All rights reserved. |
| 3 | * |
| 4 | * Redistribution and use in source and binary forms, with or without |
| 5 | * modification, are permitted provided that the following conditions are |
| 6 | * met: |
| 7 | * * Redistributions of source code must retain the above copyright |
| 8 | * notice, this list of conditions and the following disclaimer. |
| 9 | * * Redistributions in binary form must reproduce the above |
| 10 | * copyright notice, this list of conditions and the following |
| 11 | * disclaimer in the documentation and/or other materials provided |
| 12 | * with the distribution. |
| 13 | * * Neither the name of The Linux Foundation nor the names of its |
| 14 | * contributors may be used to endorse or promote products derived |
| 15 | * from this software without specific prior written permission. |
| 16 | * |
| 17 | * |
| 18 | * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED |
| 19 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 20 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT |
| 21 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS |
| 22 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 23 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 24 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
| 25 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| 26 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
| 27 | * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN |
| 28 | * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 29 | */ |
| 30 | |
| 31 | #ifndef ANDROID_EFFECTS_HW_ACC_H |
| 32 | #define ANDROID_EFFECTS_HW_ACC_H |
| 33 | |
| 34 | #include <media/AudioBufferProvider.h> |
| 35 | |
| 36 | namespace android { |
| 37 | |
| 38 | // ---------------------------------------------------------------------------- |
| 39 | class EffectsHwAcc { |
| 40 | public: |
| 41 | EffectsHwAcc(uint32_t sampleRate); |
| 42 | virtual ~EffectsHwAcc(); |
| 43 | |
| 44 | virtual void setSampleRate(uint32_t inpSR, uint32_t outSR); |
| 45 | virtual void unprepareEffects(AudioBufferProvider **trackBufferProvider); |
| 46 | virtual status_t prepareEffects(AudioBufferProvider **trackBufferProvider, |
| 47 | int sessionId, audio_channel_mask_t channelMask, |
| 48 | int frameCount); |
| 49 | virtual void setBufferProvider(AudioBufferProvider **bufferProvider, |
| 50 | AudioBufferProvider **trackBufferProvider); |
| 51 | /* AudioBufferProvider that wraps a track AudioBufferProvider by a call to |
| 52 | h/w accelerated effect */ |
| 53 | class EffectsBufferProvider : public AudioBufferProvider { |
| 54 | public: |
| 55 | EffectsBufferProvider(); |
| 56 | virtual ~EffectsBufferProvider(); |
| 57 | |
| 58 | virtual status_t getNextBuffer(Buffer* buffer, int64_t pts); |
| 59 | virtual void releaseBuffer(Buffer* buffer); |
| 60 | |
| 61 | AudioBufferProvider* mTrackBufferProvider; |
| 62 | effect_handle_t mEffectsHandle; |
| 63 | effect_config_t mEffectsConfig; |
| 64 | |
| 65 | void *mInputBuffer; |
| 66 | void *mOutputBuffer; |
| 67 | uint32_t mInputBufferFrameCountOffset; |
| 68 | }; |
| 69 | |
| 70 | bool mEnabled; |
| 71 | int32_t mFd; |
| 72 | |
| 73 | EffectsBufferProvider* mBufferProvider; |
| 74 | |
| 75 | private: |
| 76 | uint32_t mInputSampleRate; |
| 77 | uint32_t mOutputSampleRate; |
| 78 | }; |
| 79 | |
| 80 | |
| 81 | // ---------------------------------------------------------------------------- |
| 82 | }; // namespace android |
| 83 | |
| 84 | #endif // ANDROID_EFFECTS_HW_ACC_H |