1 /* 2 * Copyright (C) 2018 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_C2_SOFT_AAC_ENC_H_ 18 #define ANDROID_C2_SOFT_AAC_ENC_H_ 19 20 #include <atomic> 21 #include <optional> 22 23 #include <SimpleC2Component.h> 24 #include <util/C2InterfaceHelper.h> 25 26 #include "aacenc_lib.h" 27 28 namespace android { 29 30 class C2SoftAacEnc : public SimpleC2Component { 31 public: 32 class IntfImpl; 33 34 C2SoftAacEnc(const char *name, c2_node_id_t id, const std::shared_ptr<IntfImpl> &intfImpl); 35 C2SoftAacEnc(const char *name, c2_node_id_t id, 36 const std::shared_ptr<C2ReflectorHelper> &helper); 37 virtual ~C2SoftAacEnc(); 38 39 // From SimpleC2Component 40 c2_status_t onInit() override; 41 c2_status_t onStop() override; 42 void onReset() override; 43 void onRelease() override; 44 c2_status_t onFlush_sm() override; 45 void process( 46 const std::unique_ptr<C2Work> &work, 47 const std::shared_ptr<C2BlockPool> &pool) override; 48 c2_status_t drain( 49 uint32_t drainMode, 50 const std::shared_ptr<C2BlockPool> &pool) override; 51 52 private: 53 static constexpr size_t kMaxChannelCount = 6; 54 static constexpr size_t kRemainderBufSize = kMaxChannelCount * sizeof(int16_t); 55 56 std::shared_ptr<IntfImpl> mIntf; 57 58 HANDLE_AACENCODER mAACEncoder; 59 60 UINT mNumBytesPerInputFrame; 61 UINT mOutBufferSize; 62 63 bool mSentCodecSpecificData; 64 std::optional<c2_cntr64_t> mNextFrameTimestampUs; 65 std::optional<c2_cntr64_t> mLastFrameEndTimestampUs; 66 67 bool mSignalledError; 68 std::atomic_uint64_t mOutIndex; 69 70 // We support max 6 channels 71 uint8_t mRemainder[kRemainderBufSize]; 72 size_t mRemainderLen; 73 74 status_t initEncoder(); 75 76 status_t setAudioParams(); 77 78 C2_DO_NOT_COPY(C2SoftAacEnc); 79 }; 80 81 } // namespace android 82 83 #endif // ANDROID_C2_SOFT_AAC_ENC_H_ 84