NuPlayerDecoderPassThrough.h revision 29b7dcf6d3cdb97103467dc8106151c6260c239a 
1/*
2 * Copyright (C) 2014 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_PASS_THROUGH_H_
18
19#define NUPLAYER_DECODER_PASS_THROUGH_H_
20
21#include "NuPlayer.h"
22
23#include "NuPlayerDecoderBase.h"
24
25namespace android {
26
27struct NuPlayer::DecoderPassThrough : public DecoderBase {
28    DecoderPassThrough(const sp<AMessage> &notify,
29                       const sp<Source> &source,
30                       const sp<Renderer> &renderer);
31
32protected:
33
34    virtual ~DecoderPassThrough();
35
36    virtual void onMessageReceived(const sp<AMessage> &msg);
37
38    virtual void onConfigure(const sp<AMessage> &format);
39    virtual void onSetParameters(const sp<AMessage> &params);
40    virtual void onSetRenderer(const sp<Renderer> &renderer);
41    virtual void onResume(bool notifyComplete);
42    virtual void onFlush();
43    virtual void onShutdown(bool notifyComplete);
44    virtual bool doRequestBuffers();
45
46private:
47    enum {
48        kWhatBufferConsumed     = 'bufC',
49    };
50
51    sp<Source> mSource;
52    sp<Renderer> mRenderer;
53    int64_t mSkipRenderingUntilMediaTimeUs;
54
55    bool    mReachedEOS;
56
57    // Used by feedDecoderInputData to aggregate small buffers into
58    // one large buffer.
59    sp<ABuffer> mPendingAudioAccessUnit;
60    status_t    mPendingAudioErr;
61    sp<ABuffer> mAggregateBuffer;
62
63    // mPendingBuffersToDrain are only for debugging. It can be removed
64    // when the power investigation is done.
65    size_t  mPendingBuffersToDrain;
66    size_t  mCachedBytes;
67    AString mComponentName;
68
69    bool isStaleReply(const sp<AMessage> &msg);
70    bool isDoneFetching() const;
71
72    status_t dequeueAccessUnit(sp<ABuffer> *accessUnit);
73    sp<ABuffer> aggregateBuffer(const sp<ABuffer> &accessUnit);
74    status_t fetchInputData(sp<AMessage> &reply);
75    void doFlush(bool notifyComplete);
76
77    void onInputBufferFetched(const sp<AMessage> &msg);
78    void onBufferConsumed(int32_t size);
79
80    DISALLOW_EVIL_CONSTRUCTORS(DecoderPassThrough);
81};
82
83}  // namespace android
84
85#endif  // NUPLAYER_DECODER_PASS_THROUGH_H_
86