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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_FLAC_DEC_H_
18 #define ANDROID_C2_SOFT_FLAC_DEC_H_
19 
20 #include <SimpleC2Component.h>
21 #include <util/C2InterfaceHelper.h>
22 
23 #include "FLACDecoder.h"
24 
25 namespace android {
26 
27 struct C2SoftFlacDec : public SimpleC2Component {
28     class IntfImpl;
29 
30     C2SoftFlacDec(const char *name, c2_node_id_t id,
31                       const std::shared_ptr<IntfImpl> &intfImpl);
32     C2SoftFlacDec(const char *name, c2_node_id_t id,
33                       const std::shared_ptr<C2ReflectorHelper> &helper);
34     virtual ~C2SoftFlacDec();
35 
36     // From SimpleC2Component
37     c2_status_t onInit() override;
38     c2_status_t onStop() override;
39     void onReset() override;
40     void onRelease() override;
41     c2_status_t onFlush_sm() override;
42     void process(
43             const std::unique_ptr<C2Work> &work,
44             const std::shared_ptr<C2BlockPool> &pool) override;
45     c2_status_t drain(
46             uint32_t drainMode,
47             const std::shared_ptr<C2BlockPool> &pool) override;
48 
49 private:
50     enum {
51         kMaxBlockSize   = 4096
52     };
53 
54     std::shared_ptr<IntfImpl> mIntf;
55     FLACDecoder *mFLACDecoder;
56     FLAC__StreamMetadata_StreamInfo mStreamInfo;
57     bool mSignalledError;
58     bool mSignalledOutputEos;
59     bool mHasStreamInfo;
60     size_t mInputBufferCount;
61 
62     status_t initDecoder();
63 
64     C2_DO_NOT_COPY(C2SoftFlacDec);
65 };
66 
67 }  // namespace android
68 
69 #endif  // ANDROID_C2_SOFT_FLAC_DEC_H_
70