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/*
* Copyright (C) 2014 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 WEBMWRITER_H_
#define WEBMWRITER_H_
#include "WebmConstants.h"
#include "WebmFrameThread.h"
#include "LinkedBlockingQueue.h"
#include <media/stagefright/MediaSource.h>
#include <media/stagefright/MediaWriter.h>
#include <utils/Errors.h>
#include <utils/Mutex.h>
#include <utils/StrongPointer.h>
#include <stdint.h>
using namespace webm;
namespace android {
class WebmWriter : public MediaWriter {
public:
WebmWriter(int fd);
WebmWriter(const char *filename);
~WebmWriter() { reset(); }
status_t addSource(const sp<MediaSource> &source);
status_t start(MetaData *param = NULL);
status_t stop();
status_t pause();
bool reachedEOS();
void setStartTimeOffsetMs(int ms) { mStartTimeOffsetMs = ms; }
int32_t getStartTimeOffsetMs() const { return mStartTimeOffsetMs; }
private:
int mFd;
status_t mInitCheck;
uint64_t mTimeCodeScale;
int64_t mStartTimestampUs;
int32_t mStartTimeOffsetMs;
uint64_t mSegmentOffset;
uint64_t mSegmentDataStart;
uint64_t mInfoOffset;
uint64_t mInfoSize;
uint64_t mTracksOffset;
uint64_t mCuesOffset;
bool mPaused;
bool mStarted;
bool mIsFileSizeLimitExplicitlyRequested;
bool mIsRealTimeRecording;
bool mStreamableFile;
uint64_t mEstimatedCuesSize;
Mutex mLock;
List<sp<WebmElement> > mCuePoints;
enum {
kAudioIndex = 0,
kVideoIndex = 1,
kMaxStreams = 2,
};
struct WebmStream {
int mType;
const char *mName;
sp<WebmElement> (*mMakeTrack)(const sp<MetaData>&);
sp<MediaSource> mSource;
sp<WebmElement> mTrackEntry;
sp<WebmFrameSourceThread> mThread;
LinkedBlockingQueue<const sp<WebmFrame> > mSink;
WebmStream()
: mType(kInvalidType),
mName("Invalid"),
mMakeTrack(NULL) {
}
WebmStream(int type, const char *name, sp<WebmElement> (*makeTrack)(const sp<MetaData>&))
: mType(type),
mName(name),
mMakeTrack(makeTrack) {
}
WebmStream &operator=(const WebmStream &other) {
mType = other.mType;
mName = other.mName;
mMakeTrack = other.mMakeTrack;
return *this;
}
};
WebmStream mStreams[kMaxStreams];
sp<WebmFrameSinkThread> mSinkThread;
size_t numTracks();
uint64_t estimateCuesSize(int32_t bitRate);
void initStream(size_t idx);
void release();
status_t reset();
static sp<WebmElement> videoTrack(const sp<MetaData>& md);
static sp<WebmElement> audioTrack(const sp<MetaData>& md);
DISALLOW_EVIL_CONSTRUCTORS(WebmWriter);
};
} /* namespace android */
#endif /* WEBMWRITER_H_ */
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