NuPlayerDecoder.h revision 6d0a94ead4f6e62b8ca9b2b1d775ffcd0a7a7aab
1/*
2 * Copyright (C) 2010 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 NUPLAYER_DECODER_H_
18
19#define NUPLAYER_DECODER_H_
20
21#include "NuPlayer.h"
22
23#include <media/stagefright/foundation/AHandler.h>
24
25namespace android {
26
27struct ABuffer;
28
29struct NuPlayer::Decoder : public AHandler {
30    Decoder(const sp<AMessage> &notify,
31            const sp<NativeWindowWrapper> &nativeWindow = NULL);
32
33    void configure(const sp<AMessage> &format);
34
35    void signalFlush();
36    void signalResume();
37    void initiateShutdown();
38
39    bool supportsSeamlessFormatChange(const sp<AMessage> &to) const;
40
41protected:
42    virtual ~Decoder();
43
44    virtual void onMessageReceived(const sp<AMessage> &msg);
45
46private:
47    enum {
48        kWhatCodecNotify        = 'cdcN',
49    };
50
51    sp<AMessage> mNotify;
52    sp<NativeWindowWrapper> mNativeWindow;
53
54    sp<AMessage> mFormat;
55    sp<ACodec> mCodec;
56    sp<ALooper> mCodecLooper;
57
58    Vector<sp<ABuffer> > mCSD;
59    size_t mCSDIndex;
60
61    sp<AMessage> makeFormat(const sp<MetaData> &meta);
62
63    void onFillThisBuffer(const sp<AMessage> &msg);
64
65    bool supportsSeamlessAudioFormatChange(const sp<AMessage> &targetFormat) const;
66
67    DISALLOW_EVIL_CONSTRUCTORS(Decoder);
68};
69
70}  // namespace android
71
72#endif  // NUPLAYER_DECODER_H_
73