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 
25 namespace android {
26 
27 struct NuPlayer::DecoderPassThrough : public DecoderBase {
28     DecoderPassThrough(const sp<AMessage> &notify,
29                        const sp<Source> &source,
30                        const sp<Renderer> &renderer);
31 
32     virtual void getStats(
33             int64_t *mNumFramesTotal,
34             int64_t *mNumFramesDropped) const;
35 
36 protected:
37 
38     virtual ~DecoderPassThrough();
39 
40     virtual void onMessageReceived(const sp<AMessage> &msg);
41 
42     virtual void onConfigure(const sp<AMessage> &format);
43     virtual void onSetRenderer(const sp<Renderer> &renderer);
44     virtual void onGetInputBuffers(Vector<sp<ABuffer> > *dstBuffers);
45     virtual void onResume(bool notifyComplete);
46     virtual void onFlush(bool notifyComplete);
47     virtual void onShutdown(bool notifyComplete);
48     virtual void doRequestBuffers();
49 
50 private:
51     enum {
52         kWhatBufferConsumed     = 'bufC',
53     };
54 
55     sp<Source> mSource;
56     sp<Renderer> mRenderer;
57     int64_t mSkipRenderingUntilMediaTimeUs;
58     bool mPaused;
59 
60     bool    mReachedEOS;
61 
62     // Used by feedDecoderInputData to aggregate small buffers into
63     // one large buffer.
64     sp<ABuffer> mPendingAudioAccessUnit;
65     status_t    mPendingAudioErr;
66     sp<ABuffer> mAggregateBuffer;
67 
68     // mPendingBuffersToDrain are only for debugging. It can be removed
69     // when the power investigation is done.
70     size_t  mPendingBuffersToDrain;
71     size_t  mCachedBytes;
72     AString mComponentName;
73 
74     bool isStaleReply(const sp<AMessage> &msg);
75     bool isDoneFetching() const;
76 
77     status_t dequeueAccessUnit(sp<ABuffer> *accessUnit);
78     sp<ABuffer> aggregateBuffer(const sp<ABuffer> &accessUnit);
79     status_t fetchInputData(sp<AMessage> &reply);
80 
81     void onInputBufferFetched(const sp<AMessage> &msg);
82     void onBufferConsumed(int32_t size);
83 
84     DISALLOW_EVIL_CONSTRUCTORS(DecoderPassThrough);
85 };
86 
87 }  // namespace android
88 
89 #endif  // NUPLAYER_DECODER_PASS_THROUGH_H_
90