1 /*
2  * Copyright (C) 2012 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 SOFT_GSM_H_
18 
19 #define SOFT_GSM_H_
20 
21 #include <media/stagefright/omx/SimpleSoftOMXComponent.h>
22 
23 extern "C" {
24 #include "gsm.h"
25 }
26 
27 namespace android {
28 
29 struct SoftGSM : public SimpleSoftOMXComponent {
30     SoftGSM(const char *name,
31             const OMX_CALLBACKTYPE *callbacks,
32             OMX_PTR appData,
33             OMX_COMPONENTTYPE **component);
34 
35 protected:
36     virtual ~SoftGSM();
37 
38     virtual OMX_ERRORTYPE internalGetParameter(
39             OMX_INDEXTYPE index, OMX_PTR params);
40 
41     virtual OMX_ERRORTYPE internalSetParameter(
42             OMX_INDEXTYPE index, const OMX_PTR params);
43 
44     virtual void onQueueFilled(OMX_U32 portIndex);
45 
46     virtual void onPortFlushCompleted(OMX_U32 portIndex);
47     virtual void onReset();
48 
49 private:
50     enum {
51         kNumBuffers = 4,
52         kMaxNumSamplesPerFrame = 16384,
53     };
54 
55     bool mSignalledError;
56     gsm mGsm;
57 
58     void initPorts();
59 
60     static int DecodeGSM(gsm handle, int16_t *out, uint8_t *in, size_t inSize);
61 
62     DISALLOW_EVIL_CONSTRUCTORS(SoftGSM);
63 };
64 
65 }  // namespace android
66 
67 #endif  // SOFT_GSM_H_
68 
69