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      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 AMR_WRITER_H_
     18 
     19 #define AMR_WRITER_H_
     20 
     21 #include <stdio.h>
     22 
     23 #include <media/IMediaSource.h>
     24 #include <media/stagefright/MediaWriter.h>
     25 #include <utils/threads.h>
     26 
     27 namespace android {
     28 
     29 class MetaData;
     30 
     31 struct AMRWriter : public MediaWriter {
     32     AMRWriter(int fd);
     33 
     34     status_t initCheck() const;
     35 
     36     virtual status_t addSource(const sp<IMediaSource> &source);
     37     virtual bool reachedEOS();
     38     virtual status_t start(MetaData *params = NULL);
     39     virtual status_t stop() { return reset(); }
     40     virtual status_t pause();
     41 
     42 protected:
     43     virtual ~AMRWriter();
     44 
     45 private:
     46     int   mFd;
     47     status_t mInitCheck;
     48     sp<IMediaSource> mSource;
     49     bool mStarted;
     50     volatile bool mPaused;
     51     volatile bool mResumed;
     52     volatile bool mDone;
     53     volatile bool mReachedEOS;
     54     pthread_t mThread;
     55     int64_t mEstimatedSizeBytes;
     56     int64_t mEstimatedDurationUs;
     57 
     58     static void *ThreadWrapper(void *);
     59     status_t threadFunc();
     60     bool exceedsFileSizeLimit();
     61     bool exceedsFileDurationLimit();
     62     status_t reset();
     63 
     64     AMRWriter(const AMRWriter &);
     65     AMRWriter &operator=(const AMRWriter &);
     66 };
     67 
     68 }  // namespace android
     69 
     70 #endif  // AMR_WRITER_H_
     71