gecko/content/media/wave/nsWaveDecoder.h
Chris Double bd28db8dee Bug 635649 - Refactor Wave backend to use content/media nsBuiltinDecoder framework - r=kinetik
commit c7e190d81b10e7425b53217352c126adfbb79c4a
Author: Chris Double <chris.double@double.co.nz>
Date:   Thu Mar 24 18:09:06 2011 +1300

    Fix
2011-03-30 18:37:42 +13:00

63 lines
2.6 KiB
C++

/* -*- 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 Foundation.
* Portions created by the Initial Developer are Copyright (C) 2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Matthew Gregan <kinetik@flim.org>
*
* 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
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*
* ***** END LICENSE BLOCK ***** */
#if !defined(nsWaveDecoder_h_)
#define nsWaveDecoder_h_
#include "nsBuiltinDecoder.h"
/**
* The decoder implementation is currently limited to Linear PCM encoded
* audio data with one or two channels of 8- or 16-bit samples at sample
* rates from 100 Hz to 96 kHz. The number of channels is limited by what
* the audio backend (sydneyaudio via nsAudioStream) currently supports. The
* supported sample rate is artificially limited to arbitrarily selected sane
* values. Support for additional channels (and other new features) would
* require extending nsWaveDecoder to support parsing the newer
* WAVE_FORMAT_EXTENSIBLE chunk format.
**/
class nsWaveDecoder : public nsBuiltinDecoder
{
public:
virtual nsMediaDecoder* Clone() { return new nsWaveDecoder(); }
virtual nsDecoderStateMachine* CreateStateMachine();
};
#endif