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/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef AAC_WRITER_H_
#define AAC_WRITER_H_
#include "foundation/ABase.h"
#include <media/stagefright/MediaWriter.h>
#include <utils/threads.h>
namespace android {
struct MediaSource;
struct MetaData;
struct AACWriter : public MediaWriter {
AACWriter(int fd);
status_t initCheck() const;
virtual status_t addSource(const sp<MediaSource> &source);
virtual bool reachedEOS();
virtual status_t start(MetaData *params = NULL);
virtual status_t stop() { return reset(); }
virtual status_t pause();
protected:
virtual ~AACWriter();
private:
enum {
kAdtsHeaderLength = 7, // # of bytes for the adts header
kSamplesPerFrame = 1024, // # of samples in a frame
};
int mFd;
status_t mInitCheck;
sp<MediaSource> mSource;
bool mStarted;
volatile bool mPaused;
volatile bool mResumed;
volatile bool mDone;
volatile bool mReachedEOS;
pthread_t mThread;
int64_t mEstimatedSizeBytes;
int64_t mEstimatedDurationUs;
int32_t mChannelCount;
int32_t mSampleRate;
int32_t mAACProfile;
int32_t mFrameDurationUs;
static void *ThreadWrapper(void *);
status_t threadFunc();
bool exceedsFileSizeLimit();
bool exceedsFileDurationLimit();
status_t writeAdtsHeader(uint32_t frameLength);
status_t reset();
DISALLOW_EVIL_CONSTRUCTORS(AACWriter);
};
} // namespace android
#endif // AAC_WRITER_H_
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