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_VORBIS_DEC_H_
18 #define ANDROID_C2_SOFT_VORBIS_DEC_H_
19 
20 #include <SimpleC2Component.h>
21 
22 
23 struct vorbis_dsp_state;
24 struct vorbis_info;
25 
26 namespace android {
27 
28 struct C2SoftVorbisDec : public SimpleC2Component {
29     class IntfImpl;
30 
31     C2SoftVorbisDec(const char *name, c2_node_id_t id,
32                  const std::shared_ptr<IntfImpl> &intfImpl);
33     virtual ~C2SoftVorbisDec();
34 
35     // From SimpleC2Component
36     c2_status_t onInit() override;
37     c2_status_t onStop() override;
38     void onReset() override;
39     void onRelease() override;
40     c2_status_t onFlush_sm() override;
41     void process(
42             const std::unique_ptr<C2Work> &work,
43             const std::shared_ptr<C2BlockPool> &pool) override;
44     c2_status_t drain(
45             uint32_t drainMode,
46             const std::shared_ptr<C2BlockPool> &pool) override;
47 
48  private:
49     enum {
50         kMaxNumSamplesPerChannel = 8192,
51     };
52 
53     std::shared_ptr<IntfImpl> mIntf;
54     vorbis_dsp_state *mState;
55     vorbis_info *mVi;
56 
57     int32_t mNumFramesLeftOnPage;
58     bool mSignalledError;
59     bool mSignalledOutputEos;
60     bool mInfoUnpacked;
61     bool mBooksUnpacked;
62     status_t initDecoder();
63 
64     C2_DO_NOT_COPY(C2SoftVorbisDec);
65 };
66 
67 }  // namespace android
68 
69 #endif  // ANDROID_C2_SOFT_VORBIS_DEC_H_
70 
71