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 protected:
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 
46 private:
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