FFmpeg/libavcodec/h264idct.c

/*
 * H.264 IDCT
 * Copyright (c) 2004 Michael Niedermayer <michaelni@gmx.at>
 *
 * This file is part of Libav.
 *
 * Libav is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * Libav is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with Libav; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

/**
 * @file
 * H.264 IDCT.
 * @author Michael Niedermayer <michaelni@gmx.at>
 */

#define BIT_DEPTH 8
#include "h264idct_template.c"
#undef BIT_DEPTH

#define BIT_DEPTH 9
#include "h264idct_template.c"
#undef BIT_DEPTH

#define BIT_DEPTH 10
#include "h264idct_template.c"
#undef BIT_DEPTH
move h264 idct to its own file and call via function pointer in DspContext allow h264 idct to be used for lowres=1 Originally committed as revision 3524 to svn://svn.ffmpeg.org/ffmpeg/trunk 2004-09-27 22:47:17 +03:00			`/*`
			`* H.264 IDCT`
			`* Copyright (c) 2004 Michael Niedermayer <michaelni@gmx.at>`
			`*`
Replace FFmpeg with Libav in licence headers Signed-off-by: Mans Rullgard <mans@mansr.com> 2011-03-18 19:35:10 +02:00			`* This file is part of Libav.`
Change license headers to say 'FFmpeg' instead of 'this program/this library' and fix GPL/LGPL version mismatches. Originally committed as revision 6577 to svn://svn.ffmpeg.org/ffmpeg/trunk 2006-10-07 18:30:46 +03:00			`*`
Replace FFmpeg with Libav in licence headers Signed-off-by: Mans Rullgard <mans@mansr.com> 2011-03-18 19:35:10 +02:00			`* Libav is free software; you can redistribute it and/or`
move h264 idct to its own file and call via function pointer in DspContext allow h264 idct to be used for lowres=1 Originally committed as revision 3524 to svn://svn.ffmpeg.org/ffmpeg/trunk 2004-09-27 22:47:17 +03:00			`* modify it under the terms of the GNU Lesser General Public`
			`* License as published by the Free Software Foundation; either`
Change license headers to say 'FFmpeg' instead of 'this program/this library' and fix GPL/LGPL version mismatches. Originally committed as revision 6577 to svn://svn.ffmpeg.org/ffmpeg/trunk 2006-10-07 18:30:46 +03:00			`* version 2.1 of the License, or (at your option) any later version.`
move h264 idct to its own file and call via function pointer in DspContext allow h264 idct to be used for lowres=1 Originally committed as revision 3524 to svn://svn.ffmpeg.org/ffmpeg/trunk 2004-09-27 22:47:17 +03:00			`*`
Replace FFmpeg with Libav in licence headers Signed-off-by: Mans Rullgard <mans@mansr.com> 2011-03-18 19:35:10 +02:00			`* Libav is distributed in the hope that it will be useful,`
move h264 idct to its own file and call via function pointer in DspContext allow h264 idct to be used for lowres=1 Originally committed as revision 3524 to svn://svn.ffmpeg.org/ffmpeg/trunk 2004-09-27 22:47:17 +03:00			`* but WITHOUT ANY WARRANTY; without even the implied warranty of`
			`* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU`
			`* Lesser General Public License for more details.`
			`*`
			`* You should have received a copy of the GNU Lesser General Public`
Replace FFmpeg with Libav in licence headers Signed-off-by: Mans Rullgard <mans@mansr.com> 2011-03-18 19:35:10 +02:00			`* License along with Libav; if not, write to the Free Software`
Update licensing information: The FSF changed postal address. Originally committed as revision 4842 to svn://svn.ffmpeg.org/ffmpeg/trunk 2006-01-13 00:43:26 +02:00			`* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA`
move h264 idct to its own file and call via function pointer in DspContext allow h264 idct to be used for lowres=1 Originally committed as revision 3524 to svn://svn.ffmpeg.org/ffmpeg/trunk 2004-09-27 22:47:17 +03:00			`*/`
COSMETICS: Remove all trailing whitespace. Originally committed as revision 4749 to svn://svn.ffmpeg.org/ffmpeg/trunk 2005-12-17 20:14:38 +02:00
move h264 idct to its own file and call via function pointer in DspContext allow h264 idct to be used for lowres=1 Originally committed as revision 3524 to svn://svn.ffmpeg.org/ffmpeg/trunk 2004-09-27 22:47:17 +03:00			`/**`
Remove explicit filename from Doxygen @file commands. Passing an explicit filename to this command is only necessary if the documentation in the @file block refers to a file different from the one the block resides in. Originally committed as revision 22921 to svn://svn.ffmpeg.org/ffmpeg/trunk 2010-04-20 17:45:34 +03:00			`* @file`
move h264 idct to its own file and call via function pointer in DspContext allow h264 idct to be used for lowres=1 Originally committed as revision 3524 to svn://svn.ffmpeg.org/ffmpeg/trunk 2004-09-27 22:47:17 +03:00			`* H.264 IDCT.`
			`* @author Michael Niedermayer <michaelni@gmx.at>`
			`*/`
COSMETICS: Remove all trailing whitespace. Originally committed as revision 4749 to svn://svn.ffmpeg.org/ffmpeg/trunk 2005-12-17 20:14:38 +02:00
Adds 8-, 9- and 10-bit versions of some of the functions used by the h264 decoder. This patch lets e.g. dsputil_init chose dsp functions with respect to the bit depth to decode. The naming scheme of bit depth dependent functions is <base name>_<bit depth>[_<prefix>] (i.e. the old clear_blocks_c is now named clear_blocks_8_c). Note: Some of the functions for high bit depth is not dependent on the bit depth, but only on the pixel size. This leaves some room for optimizing binary size. Preparatory patch for high bit depth h264 decoding support. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com> 2011-03-29 18:48:59 +03:00			`#define BIT_DEPTH 8`
Move the functions in h264idct into a new file h264idct_template.c. Preparatory patch for high bit depth h264 decoding support. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com> 2011-03-29 18:48:50 +03:00			`#include "h264idct_template.c"`
Adds 8-, 9- and 10-bit versions of some of the functions used by the h264 decoder. This patch lets e.g. dsputil_init chose dsp functions with respect to the bit depth to decode. The naming scheme of bit depth dependent functions is <base name>_<bit depth>[_<prefix>] (i.e. the old clear_blocks_c is now named clear_blocks_8_c). Note: Some of the functions for high bit depth is not dependent on the bit depth, but only on the pixel size. This leaves some room for optimizing binary size. Preparatory patch for high bit depth h264 decoding support. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com> 2011-03-29 18:48:59 +03:00			`#undef BIT_DEPTH`

			`#define BIT_DEPTH 9`
			`#include "h264idct_template.c"`
			`#undef BIT_DEPTH`

			`#define BIT_DEPTH 10`
			`#include "h264idct_template.c"`
			`#undef BIT_DEPTH`