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