/* -*- 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();
// Write frames into the ogg container. aFlags should be set to END_OF_STREAM
// for the final set of frames.
nsresult WriteEncodedTrack(
const nsTArray<RefPtr<EncodedFrame>>& aData,
uint32_t aFlags = 0) override;
nsresult GetContainerData(nsTArray<nsTArray<uint8_t>>* aOutputBufs,
uint32_t aFlags = 0) override;
// Check metadata type integrity and reject unacceptable track encoder.
nsresult SetMetadata(
const nsTArray<RefPtr<TrackMetadataBase>>& aMetadata) 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
RefPtr<OpusMetadata> mMetadata;
ogg_stream_state mOggStreamState;
ogg_page mOggPage;
ogg_packet mPacket;
};
}
// namespace mozilla
#endif
