| /* |
| * MJPEG encoder and decoder |
| * Copyright (c) 2000, 2001 Fabrice Bellard |
| * Copyright (c) 2003 Alex Beregszaszi |
| * Copyright (c) 2003-2004 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 |
| * MJPEG quantization tables |
| */ |
| |
| #include "jpegquanttables.h" |
| |
| /* These are the sample quantization tables given in JPEG spec section K.1. |
| * The spec says that the values given produce "good" quality, and |
| * when divided by 2, "very good" quality. |
| */ |
| const uint8_t ff_mjpeg_std_luminance_quant_tbl[64] = { |
| 16, 11, 10, 16, 24, 40, 51, 61, |
| 12, 12, 14, 19, 26, 58, 60, 55, |
| 14, 13, 16, 24, 40, 57, 69, 56, |
| 14, 17, 22, 29, 51, 87, 80, 62, |
| 18, 22, 37, 56, 68, 109, 103, 77, |
| 24, 35, 55, 64, 81, 104, 113, 92, |
| 49, 64, 78, 87, 103, 121, 120, 101, |
| 72, 92, 95, 98, 112, 100, 103, 99 |
| }; |
| const uint8_t ff_mjpeg_std_chrominance_quant_tbl[64] = { |
| 17, 18, 24, 47, 99, 99, 99, 99, |
| 18, 21, 26, 66, 99, 99, 99, 99, |
| 24, 26, 56, 99, 99, 99, 99, 99, |
| 47, 66, 99, 99, 99, 99, 99, 99, |
| 99, 99, 99, 99, 99, 99, 99, 99, |
| 99, 99, 99, 99, 99, 99, 99, 99, |
| 99, 99, 99, 99, 99, 99, 99, 99, |
| 99, 99, 99, 99, 99, 99, 99, 99 |
| }; |