1 /*
2  * Copyright (C) 2018 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 OGG_WRITER_H_
18 
19 #define OGG_WRITER_H_
20 
21 #include <stdio.h>
22 
23 #include <media/stagefright/MediaWriter.h>
24 #include <utils/threads.h>
25 
26 struct OggStreamState;
27 
28 namespace android {
29 
30 struct OggWriter : public MediaWriter {
31     OggWriter(int fd);
32 
33     status_t initCheck() const;
34 
35     virtual status_t addSource(const sp<MediaSource>& source);
36     virtual bool reachedEOS();
37     virtual status_t start(MetaData* params = NULL);
stopOggWriter38     virtual status_t stop() { return reset(); }
39     virtual status_t pause();
40 
41 protected:
42     ~OggWriter();
43 
44 private:
45     int mFd;
46     bool mHaveAllCodecSpecificData;
47     status_t mInitCheck;
48     sp<MediaSource> mSource;
49     bool mStarted = false;
50     volatile bool mPaused = false;
51     volatile bool mResumed = false;
52     volatile bool mDone;
53     volatile bool mReachedEOS;
54     pthread_t mThread;
55     int64_t mSampleRate;
56     int64_t mEstimatedSizeBytes;
57     int64_t mEstimatedDurationUs;
58 
59     static void* ThreadWrapper(void*);
60     status_t threadFunc();
61     bool exceedsFileSizeLimit();
62     bool exceedsFileDurationLimit();
63     status_t reset();
64 
65     int32_t mCurrentPacketId;
66     OggStreamState* mOs = nullptr;
67 
68     OggWriter(const OggWriter&);
69     OggWriter& operator=(const OggWriter&);
70 
71     status_t writeOggHeaderPackets(unsigned char *buf, size_t size);
72 };
73 
74 }  // namespace android
75 
76 #endif  // OGG_WRITER_H_
77