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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.
*/
#include <stdint.h>
#include <media/stagefright/MediaSource.h>
#include "AudioBufferProvider.h"
#include "AudioResampler.h"
namespace android {
struct MediaBuffer;
class VideoEditorSRC : public MediaSource , public AudioBufferProvider {
public:
VideoEditorSRC(const sp<MediaSource> &source);
virtual status_t start (MetaData *params = NULL);
virtual status_t stop();
virtual sp<MetaData> getFormat();
virtual status_t read (
MediaBuffer **buffer, const ReadOptions *options = NULL);
virtual status_t getNextBuffer(Buffer* buffer, int64_t pts);
virtual void releaseBuffer(Buffer* buffer);
// Sampling freqencies
enum {
kFreq8000Hz = 8000,
kFreq11025Hz = 11025,
kFreq12000Hz = 12000,
kFreq16000Hz = 16000,
kFreq22050Hz = 22050,
kFreq24000Hz = 24000,
kFreq32000Hz = 32000,
kFreq44100Hz = 44100,
kFreq48000Hz = 48000,
};
protected :
virtual ~VideoEditorSRC();
private:
AudioResampler *mResampler;
sp<MediaSource> mSource;
int mChannelCnt;
int mSampleRate;
int32_t mOutputSampleRate;
bool mStarted;
sp<MetaData> mOutputFormat;
MediaBuffer* mBuffer;
int32_t mLeftover;
bool mFormatChanged;
bool mStopPending;
int64_t mInitialTimeStampUs;
int64_t mAccuOutBufferSize;
int64_t mSeekTimeUs;
ReadOptions::SeekMode mSeekMode;
VideoEditorSRC();
void checkAndSetResampler();
// Don't call me
VideoEditorSRC(const VideoEditorSRC&);
VideoEditorSRC &operator=(const VideoEditorSRC &);
};
} //namespce android
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