From 8992cb1d0d07edc33d274f6d7924ecdf6f83d994 Mon Sep 17 00:00:00 2001 From: Tim Redfern Date: Thu, 5 Sep 2013 17:57:22 +0100 Subject: making act segmenter --- ffmpeg/libavcodec/simple_idct.h | 57 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 ffmpeg/libavcodec/simple_idct.h (limited to 'ffmpeg/libavcodec/simple_idct.h') diff --git a/ffmpeg/libavcodec/simple_idct.h b/ffmpeg/libavcodec/simple_idct.h new file mode 100644 index 0000000..3fec5e0 --- /dev/null +++ b/ffmpeg/libavcodec/simple_idct.h @@ -0,0 +1,57 @@ +/* + * Simple IDCT + * + * Copyright (c) 2001 Michael Niedermayer + * + * This file is part of FFmpeg. + * + * FFmpeg 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. + * + * FFmpeg 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 FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + * @file + * simple idct header. + */ + +#ifndef AVCODEC_SIMPLE_IDCT_H +#define AVCODEC_SIMPLE_IDCT_H + +#include + +void ff_simple_idct_put_8(uint8_t *dest, int line_size, int16_t *block); +void ff_simple_idct_add_8(uint8_t *dest, int line_size, int16_t *block); +void ff_simple_idct_8(int16_t *block); + +void ff_simple_idct_put_10(uint8_t *dest, int line_size, int16_t *block); +void ff_simple_idct_add_10(uint8_t *dest, int line_size, int16_t *block); +void ff_simple_idct_10(int16_t *block); +/** + * Special version of ff_simple_idct_10() which does dequantization + * and scales by a factor of 2 more between the two IDCTs to account + * for larger scale of input coefficients. + */ +void ff_prores_idct(int16_t *block, const int16_t *qmat); + +void ff_simple_idct_mmx(int16_t *block); +void ff_simple_idct_add_mmx(uint8_t *dest, int line_size, int16_t *block); +void ff_simple_idct_put_mmx(uint8_t *dest, int line_size, int16_t *block); + +void ff_simple_idct248_put(uint8_t *dest, int line_size, int16_t *block); + +void ff_simple_idct84_add(uint8_t *dest, int line_size, int16_t *block); +void ff_simple_idct48_add(uint8_t *dest, int line_size, int16_t *block); +void ff_simple_idct44_add(uint8_t *dest, int line_size, int16_t *block); + +#endif /* AVCODEC_SIMPLE_IDCT_H */ -- cgit v1.2.3