gecko/content/media/raw/nsRawReader.h

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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 * The Initial Developer of the Original Code is 
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 * Contributor(s):
 *  Brad Lassey
 *  Kyle Huey <me@kylehuey.com>
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#if !defined(nsRawReader_h_)
#define nsRawReader_h_

#include "nsBuiltinDecoderReader.h"
#include "nsRawStructs.h"

class nsRawReader : public nsBuiltinDecoderReader
{
public:
  nsRawReader(nsBuiltinDecoder* aDecoder);
  ~nsRawReader();

  virtual nsresult Init(nsBuiltinDecoderReader* aCloneDonor);
  virtual nsresult ResetDecode();
  virtual bool DecodeAudioData();

  virtual bool DecodeVideoFrame(bool &aKeyframeSkip,
                                  PRInt64 aTimeThreshold);

  virtual bool HasAudio()
  {
    return PR_FALSE;
  }

  virtual bool HasVideo()
  {
    return PR_TRUE;
  }

  virtual nsresult ReadMetadata(nsVideoInfo* aInfo);
  virtual nsresult Seek(PRInt64 aTime, PRInt64 aStartTime, PRInt64 aEndTime, PRInt64 aCurrentTime);
  virtual nsresult GetBuffered(nsTimeRanges* aBuffered, PRInt64 aStartTime);

private:
  bool ReadFromStream(nsMediaStream *aStream, PRUint8 *aBuf,
                        PRUint32 aLength);

  nsRawVideoHeader mMetadata;
  PRUint32 mCurrentFrame;
  double mFrameRate;
  PRUint32 mFrameSize;
  nsIntRect mPicture;
};

#endif