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@ -1,53 +1,43 @@ |
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///****************************************************************************
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// *
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// * XVID MPEG-4 VIDEO CODEC
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// * - MMX and XMM forward discrete cosine transform -
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// *
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// * Copyright(C) 2001 Peter Ross <pross@xvid.org>
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// *
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// * This file is part of FFmpeg.
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// *
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// * FFmpeg is free software; you can redistribute it and/or
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// * modify it under the terms of the GNU Lesser General Public
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// * License as published by the Free Software Foundation; either
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// * version 2.1 of the License, or (at your option) any later version.
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// *
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// * FFmpeg is distributed in the hope that it will be useful,
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// * but WITHOUT ANY WARRANTY; without even the implied warranty of
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// * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// * Lesser General Public License for more details.
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// *
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// * You should have received a copy of the GNU Lesser General Public License
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// * along with FFmpeg; if not, write to the Free Software Foundation,
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// * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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// *
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// * $Id$
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// *
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// ***************************************************************************/
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// ****************************************************************************
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//
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// Originally provided by Intel at AP-922
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// http://developer.intel.com/vtune/cbts/strmsimd/922down.htm
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// (See more app notes at http://developer.intel.com/vtune/cbts/strmsimd/appnotes.htm)
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// but in a limited edition.
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// New macro implements a column part for precise iDCT
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// The routine precision now satisfies IEEE standard 1180-1990.
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//
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// Copyright(C) 2000-2001 Peter Gubanov <peter@elecard.net.ru>
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// Rounding trick Copyright(C) 2000 Michel Lespinasse <walken@zoy.org>
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//
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// http://www.elecard.com/peter/idct.html
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// http://www.linuxvideo.org/mpeg2dec/
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//
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// ***************************************************************************/
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//
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// These examples contain code fragments for first stage iDCT 8x8
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// (for rows) and first stage DCT 8x8 (for columns)
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//
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// conversion to gcc syntax by michael niedermayer
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/*
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* XVID MPEG-4 VIDEO CODEC |
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* - MMX and XMM forward discrete cosine transform - |
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* |
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* Copyright(C) 2001 Peter Ross <pross@xvid.org> |
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* |
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* Originally provided by Intel at AP-922 |
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* http://developer.intel.com/vtune/cbts/strmsimd/922down.htm
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* (See more app notes at http://developer.intel.com/vtune/cbts/strmsimd/appnotes.htm)
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* but in a limited edition. |
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* New macro implements a column part for precise iDCT |
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* The routine precision now satisfies IEEE standard 1180-1990. |
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* |
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* Copyright(C) 2000-2001 Peter Gubanov <peter@elecard.net.ru> |
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* Rounding trick Copyright(C) 2000 Michel Lespinasse <walken@zoy.org> |
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* |
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* http://www.elecard.com/peter/idct.html
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* http://www.linuxvideo.org/mpeg2dec/
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* |
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* These examples contain code fragments for first stage iDCT 8x8 |
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* (for rows) and first stage DCT 8x8 (for columns) |
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* |
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* conversion to gcc syntax by Michael Niedermayer |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public License |
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* along with FFmpeg; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include <inttypes.h> |
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#include "avcodec.h" |
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Diego Biurrun
18 years ago