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_AMR_DEC_H_
18 #define ANDROID_C2_SOFT_AMR_DEC_H_
19 
20 #include <SimpleC2Component.h>
21 
22 
23 namespace android {
24 
25 struct C2SoftAmrDec : public SimpleC2Component {
26     class IntfImpl;
27 
28     C2SoftAmrDec(const char *name, c2_node_id_t id,
29               const std::shared_ptr<IntfImpl> &intfImpl);
30     virtual ~C2SoftAmrDec();
31 
32     // From SimpleC2Component
33     c2_status_t onInit() override;
34     c2_status_t onStop() override;
35     void onReset() override;
36     void onRelease() override;
37     c2_status_t onFlush_sm() override;
38     void process(
39             const std::unique_ptr<C2Work> &work,
40             const std::shared_ptr<C2BlockPool> &pool) override;
41     c2_status_t drain(
42             uint32_t drainMode,
43             const std::shared_ptr<C2BlockPool> &pool) override;
44 private:
45     enum {
46         kNumSamplesPerFrameNB   = 160,
47         kNumSamplesPerFrameWB   = 320,
48     };
49 
50     std::shared_ptr<IntfImpl> mIntf;
51     void *mAmrHandle;
52     void *mDecoderBuf;
53     int16_t *mDecoderCookie;
54 
55     int16_t mInputSampleBuffer[477];
56 
57     bool mIsWide;
58     bool mSignalledError;
59     bool mSignalledOutputEos;
60 
61     status_t initDecoder();
62 
63     C2_DO_NOT_COPY(C2SoftAmrDec);
64 };
65 
66 }  // namespace android
67 
68 #endif  // ANDROID_C2_SOFT_AMR_DEC_H_
69