gecko/content/media/ogg/nsOggDecoderStateMachine.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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>
* Chris Pearce <chris@pearce.org.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 ***** */
#include "nsOggDecoderStateMachine.h"
#include "nsOggReader.h"
#include "nsOggDecoder.h"
nsOggDecoderStateMachine::nsOggDecoderStateMachine(nsBuiltinDecoder* aDecoder) :
nsBuiltinDecoderStateMachine(aDecoder, new nsOggReader(aDecoder))
{
}
void nsOggDecoderStateMachine::LoadMetadata()
{
nsBuiltinDecoderStateMachine::LoadMetadata();
// Get the duration from the media file. We only do this if the
// content length of the resource is known as we need to seek
// to the end of the file to get the last time field. We also
// only do this if the resource is seekable and if we haven't
// already obtained the duration via an HTTP header.
if (mState != DECODER_STATE_SHUTDOWN &&
mDecoder->GetCurrentStream()->GetLength() >= 0 &&
mSeekable &&
mEndTime == -1)
{
mDecoder->StopProgressUpdates();
FindEndTime();
mDecoder->StartProgressUpdates();
}
}