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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 #include <util/C2InterfaceHelper.h>
22 
23 
24 struct OpusMSDecoder;
25 
26 namespace android {
27 
28 struct C2SoftOpusDec : public SimpleC2Component {
29     class IntfImpl;
30 
31     C2SoftOpusDec(const char *name, c2_node_id_t id,
32                const std::shared_ptr<IntfImpl> &intfImpl);
33     C2SoftOpusDec(const char *name, c2_node_id_t id,
34                const std::shared_ptr<C2ReflectorHelper> &helper);
35     virtual ~C2SoftOpusDec();
36 
37     // From SimpleC2Component
38     c2_status_t onInit() override;
39     c2_status_t onStop() override;
40     void onReset() override;
41     void onRelease() override;
42     c2_status_t onFlush_sm() override;
43     void process(
44             const std::unique_ptr<C2Work> &work,
45             const std::shared_ptr<C2BlockPool> &pool) override;
46     c2_status_t drain(
47             uint32_t drainMode,
48             const std::shared_ptr<C2BlockPool> &pool) override;
49 private:
50     enum {
51         kMaxNumSamplesPerBuffer = 960 * 6
52     };
53 
54     std::shared_ptr<IntfImpl> mIntf;
55     OpusMSDecoder *mDecoder;
56     OpusHeader mHeader;
57 
58     int64_t mCodecDelay;
59     int64_t mSeekPreRoll;
60     int64_t mSamplesToDiscard;
61     size_t mInputBufferCount;
62     bool mSignalledError;
63     bool mSignalledOutputEos;
64 
65     status_t initDecoder();
66 
67     C2_DO_NOT_COPY(C2SoftOpusDec);
68 };
69 
70 }  // namespace android
71 
72 #endif  // ANDROID_C2_SOFT_OPUS_DEC_H_
73