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