SoftAAC2.h revision 6fc72b01a3b67903b52f1d33b1ad5c960b5365f1 
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_AAC_2_H_
18#define SOFT_AAC_2_H_
19
20#include "SimpleSoftOMXComponent.h"
21
22#include "aacdecoder_lib.h"
23
24namespace android {
25
26struct SoftAAC2 : public SimpleSoftOMXComponent {
27    SoftAAC2(const char *name,
28            const OMX_CALLBACKTYPE *callbacks,
29            OMX_PTR appData,
30            OMX_COMPONENTTYPE **component);
31
32protected:
33    virtual ~SoftAAC2();
34
35    virtual OMX_ERRORTYPE internalGetParameter(
36            OMX_INDEXTYPE index, OMX_PTR params);
37
38    virtual OMX_ERRORTYPE internalSetParameter(
39            OMX_INDEXTYPE index, const OMX_PTR params);
40
41    virtual void onQueueFilled(OMX_U32 portIndex);
42    virtual void onPortFlushCompleted(OMX_U32 portIndex);
43    virtual void onPortEnableCompleted(OMX_U32 portIndex, bool enabled);
44    virtual void onReset();
45
46private:
47    enum {
48        kNumInputBuffers        = 4,
49        kNumOutputBuffers       = 4,
50    };
51
52    HANDLE_AACDECODER mAACDecoder;
53    CStreamInfo *mStreamInfo;
54    bool mIsADTS;
55    bool mIsFirst;
56    size_t mInputBufferCount;
57    bool mSignalledError;
58    int64_t mAnchorTimeUs;
59    int64_t mNumSamplesOutput;
60
61    enum {
62        NONE,
63        AWAITING_DISABLED,
64        AWAITING_ENABLED
65    } mOutputPortSettingsChange;
66
67    void initPorts();
68    status_t initDecoder();
69    bool isConfigured() const;
70    void maybeConfigureDownmix() const;
71
72    DISALLOW_EVIL_CONSTRUCTORS(SoftAAC2);
73};
74
75}  // namespace android
76
77#endif  // SOFT_AAC_2_H_
78