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 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-*/

 /* 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 OggWriter_h_

 #define OggWriter_h_

 #include "ContainerWriter.h"

 #include "OpusTrackEncoder.h"

 #include <ogg/ogg.h>

 namespace mozilla {

 /**

  * WriteEncodedTrack inserts raw packets into Ogg stream (ogg_stream_state), and

  * GetContainerData outputs an ogg_page when enough packets have been written

  * to the Ogg stream.

  * For more details, please reference:

  * http://www.xiph.org/ogg/doc/libogg/encoding.html

  */

 class OggWriter : public ContainerWriter

 {

 public:

   OggWriter();

   ~OggWriter();

   nsresult WriteEncodedTrack(const EncodedFrameContainer &aData,

                              uint32_t aFlags = 0) MOZ_OVERRIDE;

   nsresult GetContainerData(nsTArray<nsTArray<uint8_t> >* aOutputBufs,

                             uint32_t aFlags = 0) MOZ_OVERRIDE;

   // Check metadata type integrity and reject unacceptable track encoder.

   nsresult SetMetadata(TrackMetadataBase* aMetadata) MOZ_OVERRIDE;

 private:

   nsresult Init();

   nsresult WriteEncodedData(const nsTArray<uint8_t>& aBuffer, int aDuration,

                             uint32_t aFlags = 0);

   void ProduceOggPage(nsTArray<nsTArray<uint8_t> >* aOutputBufs);

   // Store the Medatata from track encoder

   nsRefPtr<OpusMetadata> mMetadata;

   ogg_stream_state mOggStreamState;

   ogg_page mOggPage;

   ogg_packet mPacket;

 };

 }

 #endif