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_GSM_DEC_H_
18 #define ANDROID_C2_SOFT_GSM_DEC_H_
19 
20 #include <SimpleC2Component.h>
21 
22 
23 extern "C" {
24     #include "gsm.h"
25 }
26 
27 namespace android {
28 
29 #define FRGSM_IN_FRM_SZ             33
30 #define FRGSM_IN_FRM_SZ_MINUS_1     32
31 #define FRGSM_OUT_FRM_SZ            160
32 #define MSGSM_IN_FRM_SZ             (FRGSM_IN_FRM_SZ + FRGSM_IN_FRM_SZ_MINUS_1)
33 #define MSGSM_OUT_FRM_SZ            (FRGSM_OUT_FRM_SZ * 2)
34 
35 struct C2SoftGsmDec : public SimpleC2Component {
36     class IntfImpl;
37 
38     C2SoftGsmDec(const char *name, c2_node_id_t id,
39               const std::shared_ptr<IntfImpl> &intfImpl);
40     virtual ~C2SoftGsmDec();
41 
42     // From SimpleC2Component
43     c2_status_t onInit() override;
44     c2_status_t onStop() override;
45     void onReset() override;
46     void onRelease() override;
47     c2_status_t onFlush_sm() override;
48     void process(
49             const std::unique_ptr<C2Work> &work,
50             const std::shared_ptr<C2BlockPool> &pool) override;
51     c2_status_t drain(
52             uint32_t drainMode,
53             const std::shared_ptr<C2BlockPool> &pool) override;
54  private:
55     std::shared_ptr<IntfImpl> mIntf;
56     gsm mGsm;
57     bool mSignalledError;
58     bool mSignalledEos;
59 
60     C2_DO_NOT_COPY(C2SoftGsmDec);
61 };
62 
63 }  // namespace android
64 
65 #endif  // ANDROID_C2_SOFT_GSM_DEC_H_
66