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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 ContainerWriter_h_
#define ContainerWriter_h_
#include "nsTArray.h"
#include "EncodedFrameContainer.h"
#include "TrackMetadataBase.h"
namespace mozilla {
/**
* ContainerWriter packs encoded track data into a specific media container.
*/
class ContainerWriter {
public:
ContainerWriter()
: mInitialized(false)
, mIsWritingComplete(false)
{}
virtual ~ContainerWriter() {}
// Mapping to DOMLocalMediaStream::TrackTypeHints
enum {
CREATE_AUDIO_TRACK = 1 << 0,
CREATE_VIDEO_TRACK = 1 << 1,
};
enum {
END_OF_STREAM = 1 << 0
};
/**
* Writes encoded track data from aBuffer to a packet, and insert this packet
* into the internal stream of container writer. aDuration is the playback
* duration of this packet in number of samples. aFlags is true with
* END_OF_STREAM if this is the last packet of track.
* Currently, WriteEncodedTrack doesn't support multiple tracks.
*/
virtual nsresult WriteEncodedTrack(const EncodedFrameContainer& aData,
uint32_t aFlags = 0) = 0;
/**
* Set the meta data pointer into muxer
* This function will check the integrity of aMetadata.
* If the meta data isn't well format, this function will return NS_ERROR_FAILURE to caller,
* else save the pointer to mMetadata and return NS_OK.
*/
virtual nsresult SetMetadata(TrackMetadataBase* aMetadata) = 0;
/**
* Indicate if the writer has finished to output data
*/
virtual bool IsWritingComplete() { return mIsWritingComplete; }
enum {
FLUSH_NEEDED = 1 << 0,
GET_HEADER = 1 << 1
};
/**
* Copies the final container data to a buffer if it has accumulated enough
* packets from WriteEncodedTrack. This buffer of data is appended to
* aOutputBufs, and existing elements of aOutputBufs should not be modified.
* aFlags is true with FLUSH_NEEDED will force OggWriter to flush an ogg page
* even it is not full, and copy these container data to a buffer for
* aOutputBufs to append.
*/
virtual nsresult GetContainerData(nsTArray<nsTArray<uint8_t> >* aOutputBufs,
uint32_t aFlags = 0) = 0;
protected:
bool mInitialized;
bool mIsWritingComplete;
};
} // namespace mozilla
#endif
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