gecko-dev/content/media/ogg/nsChannelReader.h

88 lines
2.9 KiB
C++

/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla code.
*
* The Initial Developer of the Original Code is the Mozilla Corporation.
* Portions created by the Initial Developer are Copyright (C) 2007
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Chris Double <chris.double@double.co.nz>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#if !defined(nsChannelReader_h_)
#define nsChannelReader_h_
#include "nsAutoPtr.h"
#include "nsMediaStream.h"
#include "oggplay/oggplay.h"
class nsIURI;
class nsIChannel;
class nsIStreamListener;
class nsMediaDecoder;
class nsChannelReader : public OggPlayReader
{
public:
nsChannelReader();
~nsChannelReader();
/**
* Initialize the reader with the edia stream.
* This takes ownership of aStream.
*/
void Init(nsMediaStream* aStream);
nsMediaStream* Stream() { return mStream; }
// Set the time of the last frame. This is returned in duration() to
// liboggplay. Call with decoder lock obtained so that liboggplay cannot
// call duration() on the decoder thread while it is changing.
void SetLastFrameTime(PRInt64 aTime);
nsIPrincipal* GetCurrentPrincipal();
// Implementation of OggPlay Reader API.
OggPlayErrorCode initialise(int aBlock);
OggPlayErrorCode destroy();
size_t io_read(char* aBuffer, size_t aCount);
int io_seek(long aOffset, int aWhence);
long io_tell();
ogg_int64_t duration();
public:
nsAutoPtr<nsMediaStream> mStream;
// Timestamp of the end of the last frame in the media resource.
// -1 if not known.
PRInt64 mLastFrameTime;
};
#endif