BufferStream.h - mozsearch

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/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef BUFFER_STREAM_H_

#define BUFFER_STREAM_H_

#include "ByteStream.h"

#include "nsTArray.h"

#include "MediaResource.h"

namespace mozilla {

class MediaByteBuffer;

DDLoggedTypeDeclNameAndBase(BufferStream, ByteStream);

class BufferStream : public ByteStream,

                     public mozilla::DecoderDoctorLifeLogger<BufferStream> {

 public:

  /* BufferStream does not take ownership of aData nor does it make a copy.

   * Therefore BufferStream shouldn't get used after aData is destroyed.

*/

  BufferStream();

  explicit BufferStream(mozilla::MediaByteBuffer* aBuffer);

  virtual bool ReadAt(int64_t aOffset, void* aData, size_t aLength,

                      size_t* aBytesRead) override;

  virtual bool CachedReadAt(int64_t aOffset, void* aData, size_t aLength,

                            size_t* aBytesRead) override;

  virtual bool Length(int64_t* aLength) override;

  virtual void DiscardBefore(int64_t aOffset) override;

  bool AppendBytes(const uint8_t* aData, size_t aLength);

  mozilla::MediaByteRange GetByteRange();

 private:

  ~BufferStream();

  int64_t mStartOffset;

  RefPtr<mozilla::MediaByteBuffer> mData;

};

}  // namespace mozilla

#endif