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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 MEDIA_WRITER_H_
     18 
     19 #define MEDIA_WRITER_H_
     20 
     21 #include <utils/RefBase.h>
     22 #include <media/IMediaRecorderClient.h>
     23 #include <media/IMediaSource.h>
     24 
     25 namespace android {
     26 
     27 class MetaData;
     28 
     29 struct MediaWriter : public RefBase {
     30     MediaWriter()
     31         : mMaxFileSizeLimitBytes(0),
     32           mMaxFileDurationLimitUs(0) {
     33     }
     34 
     35     virtual status_t addSource(const sp<IMediaSource> &source) = 0;
     36     virtual bool reachedEOS() = 0;
     37     virtual status_t start(MetaData *params = NULL) = 0;
     38     virtual status_t stop() = 0;
     39     virtual status_t pause() = 0;
     40 
     41     virtual void setMaxFileSize(int64_t bytes) { mMaxFileSizeLimitBytes = bytes; }
     42     virtual void setMaxFileDuration(int64_t durationUs) { mMaxFileDurationLimitUs = durationUs; }
     43     virtual void setListener(const sp<IMediaRecorderClient>& listener) {
     44         mListener = listener;
     45     }
     46 
     47     virtual status_t dump(int /*fd*/, const Vector<String16>& /*args*/) {
     48         return OK;
     49     }
     50 
     51     virtual void setStartTimeOffsetMs(int /*ms*/) {}
     52     virtual int32_t getStartTimeOffsetMs() const { return 0; }
     53     virtual status_t setNextFd(int fd) { return INVALID_OPERATION; }
     54 
     55 protected:
     56     virtual ~MediaWriter() {}
     57     int64_t mMaxFileSizeLimitBytes;
     58     int64_t mMaxFileDurationLimitUs;
     59     sp<IMediaRecorderClient> mListener;
     60 
     61     void notify(int msg, int ext1, int ext2) {
     62         if (mListener != NULL) {
     63             mListener->notify(msg, ext1, ext2);
     64         }
     65     }
     66 private:
     67     MediaWriter(const MediaWriter &);
     68     MediaWriter &operator=(const MediaWriter &);
     69 };
     70 
     71 }  // namespace android
     72 
     73 #endif  // MEDIA_WRITER_H_
     74