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/*
* Copyright (C) 2010 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 NUPLAYER_DECODER_H_
#define NUPLAYER_DECODER_H_
#include "NuPlayer.h"
#include <media/stagefright/foundation/AHandler.h>
namespace android {
struct ABuffer;
struct MediaCodec;
struct MediaBuffer;
struct NuPlayer::Decoder : public AHandler {
Decoder(const sp<AMessage> ¬ify,
const sp<NativeWindowWrapper> &nativeWindow = NULL);
virtual void configure(const sp<AMessage> &format);
virtual void init();
status_t getInputBuffers(Vector<sp<ABuffer> > *dstBuffers) const;
virtual void signalFlush(const sp<AMessage> &format = NULL);
virtual void signalUpdateFormat(const sp<AMessage> &format);
virtual void signalResume();
virtual void initiateShutdown();
virtual bool supportsSeamlessFormatChange(const sp<AMessage> &to) const;
enum {
kWhatFillThisBuffer = 'flTB',
kWhatDrainThisBuffer = 'drTB',
kWhatOutputFormatChanged = 'fmtC',
kWhatFlushCompleted = 'flsC',
kWhatShutdownCompleted = 'shDC',
kWhatEOS = 'eos ',
kWhatError = 'err ',
};
protected:
virtual ~Decoder();
virtual void onMessageReceived(const sp<AMessage> &msg);
private:
enum {
kWhatCodecNotify = 'cdcN',
kWhatConfigure = 'conf',
kWhatGetInputBuffers = 'gInB',
kWhatInputBufferFilled = 'inpF',
kWhatRenderBuffer = 'rndr',
kWhatFlush = 'flus',
kWhatShutdown = 'shuD',
kWhatUpdateFormat = 'uFmt',
};
sp<AMessage> mNotify;
sp<NativeWindowWrapper> mNativeWindow;
sp<AMessage> mInputFormat;
sp<AMessage> mOutputFormat;
sp<MediaCodec> mCodec;
sp<ALooper> mCodecLooper;
sp<ALooper> mDecoderLooper;
List<sp<AMessage> > mPendingInputMessages;
Vector<sp<ABuffer> > mInputBuffers;
Vector<sp<ABuffer> > mOutputBuffers;
Vector<sp<ABuffer> > mCSDsForCurrentFormat;
Vector<sp<ABuffer> > mCSDsToSubmit;
Vector<bool> mInputBufferIsDequeued;
Vector<MediaBuffer *> mMediaBuffers;
void handleError(int32_t err);
bool handleAnInputBuffer();
bool handleAnOutputBuffer();
void releaseAndResetMediaBuffers();
void requestCodecNotification();
bool isStaleReply(const sp<AMessage> &msg);
void onConfigure(const sp<AMessage> &format);
void onFlush();
void onResume();
bool onInputBufferFilled(const sp<AMessage> &msg);
void onRenderBuffer(const sp<AMessage> &msg);
void onShutdown();
int32_t mBufferGeneration;
bool mPaused;
AString mComponentName;
bool supportsSeamlessAudioFormatChange(const sp<AMessage> &targetFormat) const;
void rememberCodecSpecificData(const sp<AMessage> &format);
DISALLOW_EVIL_CONSTRUCTORS(Decoder);
};
struct NuPlayer::CCDecoder : public RefBase {
enum {
kWhatClosedCaptionData,
kWhatTrackAdded,
};
CCDecoder(const sp<AMessage> ¬ify);
size_t getTrackCount() const;
sp<AMessage> getTrackInfo(size_t index) const;
status_t selectTrack(size_t index, bool select);
bool isSelected() const;
void decode(const sp<ABuffer> &accessUnit);
void display(int64_t timeUs);
void flush();
private:
sp<AMessage> mNotify;
KeyedVector<int64_t, sp<ABuffer> > mCCMap;
size_t mCurrentChannel;
int32_t mSelectedTrack;
int32_t mTrackIndices[4];
Vector<size_t> mFoundChannels;
bool isTrackValid(size_t index) const;
int32_t getTrackIndex(size_t channel) const;
bool extractFromSEI(const sp<ABuffer> &accessUnit);
sp<ABuffer> filterCCBuf(const sp<ABuffer> &ccBuf, size_t index);
DISALLOW_EVIL_CONSTRUCTORS(CCDecoder);
};
} // namespace android
#endif // NUPLAYER_DECODER_H_
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