mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
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129 lines
4.5 KiB
C++
129 lines
4.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla code.
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*
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* The Initial Developer of the Original Code is
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* Mozilla Foundation.
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* Portions created by the Initial Developer are Copyright (C) 2010
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Brad Lassey
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* Kyle Huey <me@kylehuey.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#if !defined(nsRawReader_h_)
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#define nsRawReader_h_
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#include "nsBuiltinDecoderReader.h"
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struct nsRawVideo_PRUint24 {
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operator PRUint32() const { return value[2] << 16 | value[1] << 8 | value[0]; }
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private:
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PRUint8 value[3];
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};
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struct nsRawPacketHeader {
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typedef nsRawVideo_PRUint24 PRUint24;
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PRUint8 packetID;
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PRUint24 codecID;
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};
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// This is Arc's draft from wiki.xiph.org/OggYUV
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struct nsRawVideoHeader {
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typedef nsRawVideo_PRUint24 PRUint24;
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PRUint8 headerPacketID; // Header Packet ID (always 0)
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PRUint24 codecID; // Codec identifier (always "YUV")
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PRUint8 majorVersion; // Version Major (breaks backwards compat)
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PRUint8 minorVersion; // Version Minor (preserves backwards compat)
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PRUint16 options; // Bit 1: Color (false = B/W)
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// Bits 2-4: Chroma Pixel Shape
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// Bit 5: 50% horizontal offset for Cr samples
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// Bit 6: 50% vertical ...
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// Bits 7-8: Chroma Blending
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// Bit 9: Packed (false = Planar)
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// Bit 10: Cr Staggered Horizontally
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// Bit 11: Cr Staggered Vertically
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// Bit 12: Unused (format is always little endian)
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// Bit 13: Interlaced (false = Progressive)
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// Bits 14-16: Interlace options (undefined)
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PRUint8 alphaChannelBpp;
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PRUint8 lumaChannelBpp;
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PRUint8 chromaChannelBpp;
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PRUint8 colorspace;
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PRUint24 frameWidth;
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PRUint24 frameHeight;
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PRUint24 aspectNumerator;
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PRUint24 aspectDenominator;
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PRUint32 framerateNumerator;
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PRUint32 framerateDenominator;
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};
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class nsRawReader : public nsBuiltinDecoderReader
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{
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public:
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nsRawReader(nsBuiltinDecoder* aDecoder);
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~nsRawReader();
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virtual nsresult Init(nsBuiltinDecoderReader* aCloneDonor);
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virtual nsresult ResetDecode();
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virtual PRBool DecodeAudioData();
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virtual PRBool DecodeVideoFrame(PRBool &aKeyframeSkip,
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PRInt64 aTimeThreshold);
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virtual PRBool HasAudio()
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{
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return PR_FALSE;
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}
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virtual PRBool HasVideo()
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{
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return PR_TRUE;
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}
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virtual nsresult ReadMetadata(nsVideoInfo* aInfo);
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virtual nsresult Seek(PRInt64 aTime, PRInt64 aStartTime, PRInt64 aEndTime, PRInt64 aCurrentTime);
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virtual nsresult GetBuffered(nsTimeRanges* aBuffered, PRInt64 aStartTime);
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private:
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PRBool ReadFromStream(nsMediaStream *aStream, PRUint8 *aBuf,
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PRUint32 aLength);
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nsRawVideoHeader mMetadata;
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PRUint32 mCurrentFrame;
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double mFrameRate;
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PRUint32 mFrameSize;
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nsIntRect mPicture;
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};
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#endif
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