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_OPUS_DEC_H_ 18 #define ANDROID_C2_SOFT_OPUS_DEC_H_ 19 20 #include <SimpleC2Component.h> 21 22 23 struct OpusMSDecoder; 24 25 namespace android { 26 27 struct OpusHeader { 28 int channels; 29 int skip_samples; 30 int channel_mapping; 31 int num_streams; 32 int num_coupled; 33 int16_t gain_db; 34 uint8_t stream_map[8]; 35 }; 36 37 struct C2SoftOpusDec : public SimpleC2Component { 38 class IntfImpl; 39 40 C2SoftOpusDec(const char *name, c2_node_id_t id, 41 const std::shared_ptr<IntfImpl> &intfImpl); 42 virtual ~C2SoftOpusDec(); 43 44 // From SimpleC2Component 45 c2_status_t onInit() override; 46 c2_status_t onStop() override; 47 void onReset() override; 48 void onRelease() override; 49 c2_status_t onFlush_sm() override; 50 void process( 51 const std::unique_ptr<C2Work> &work, 52 const std::shared_ptr<C2BlockPool> &pool) override; 53 c2_status_t drain( 54 uint32_t drainMode, 55 const std::shared_ptr<C2BlockPool> &pool) override; 56 private: 57 enum { 58 kMaxNumSamplesPerBuffer = 960 * 6 59 }; 60 61 std::shared_ptr<IntfImpl> mIntf; 62 OpusMSDecoder *mDecoder; 63 OpusHeader mHeader; 64 65 int64_t mCodecDelay; 66 int64_t mSeekPreRoll; 67 int64_t mSamplesToDiscard; 68 size_t mInputBufferCount; 69 bool mSignalledError; 70 bool mSignalledOutputEos; 71 72 status_t initDecoder(); 73 74 C2_DO_NOT_COPY(C2SoftOpusDec); 75 }; 76 77 } // namespace android 78 79 #endif // ANDROID_C2_SOFT_OPUS_DEC_H_ 80