The Tor Browser: content/media/ogg/OggWriter.h@8bccb770b82d

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

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

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

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

     6 #ifndef OggWriter_h_

     7 #define OggWriter_h_

     9 #include "ContainerWriter.h"

    10 #include "OpusTrackEncoder.h"

    11 #include <ogg/ogg.h>

    13 namespace mozilla {

    14 /**

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

    16  * GetContainerData outputs an ogg_page when enough packets have been written

    17  * to the Ogg stream.

    18  * For more details, please reference:

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

    20  */

    21 class OggWriter : public ContainerWriter

    22 {

    23 public:

    24   OggWriter();

    25   ~OggWriter();

    27   nsresult WriteEncodedTrack(const EncodedFrameContainer &aData,

    28                              uint32_t aFlags = 0) MOZ_OVERRIDE;

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

    31                             uint32_t aFlags = 0) MOZ_OVERRIDE;

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

    34   nsresult SetMetadata(TrackMetadataBase* aMetadata) MOZ_OVERRIDE;

    35 private:

    36   nsresult Init();

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

    39                             uint32_t aFlags = 0);

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

    42   // Store the Medatata from track encoder

    43   nsRefPtr<OpusMetadata> mMetadata;

    45   ogg_stream_state mOggStreamState;

    46   ogg_page mOggPage;

    47   ogg_packet mPacket;

    48 };

    49 }

    50 #endif

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