1 /* 2 * SVQ1 decoder 3 * ported to MPlayer by Arpi <arpi@thot.banki.hu> 4 * ported to libavcodec by Nick Kurshev <nickols_k@mail.ru> 5 * 6 * Copyright (c) 2002 The Xine project 7 * Copyright (c) 2002 The FFmpeg project 8 * 9 * SVQ1 Encoder (c) 2004 Mike Melanson <melanson@pcisys.net> 10 * 11 * This file is part of FFmpeg. 12 * 13 * FFmpeg is free software; you can redistribute it and/or 14 * modify it under the terms of the GNU Lesser General Public 15 * License as published by the Free Software Foundation; either 16 * version 2.1 of the License, or (at your option) any later version. 17 * 18 * FFmpeg is distributed in the hope that it will be useful, 19 * but WITHOUT ANY WARRANTY; without even the implied warranty of 20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 21 * Lesser General Public License for more details. 22 * 23 * You should have received a copy of the GNU Lesser General Public 24 * License along with FFmpeg; if not, write to the Free Software 25 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 26 */ 27 28 /** 29 * @file 30 * Sorenson Vector Quantizer #1 (SVQ1) video codec. 31 * For more information of the SVQ1 algorithm, visit: 32 * http://www.pcisys.net/~melanson/codecs/ 33 */ 34 35 #ifndef AVCODEC_SVQ1_H 36 #define AVCODEC_SVQ1_H 37 38 #include <stdint.h> 39 40 #define SVQ1_BLOCK_SKIP 0 41 #define SVQ1_BLOCK_INTER 1 42 #define SVQ1_BLOCK_INTER_4V 2 43 #define SVQ1_BLOCK_INTRA 3 44 45 extern const int8_t *const ff_svq1_inter_codebooks[6]; 46 extern const int8_t *const ff_svq1_intra_codebooks[6]; 47 48 extern const uint8_t ff_svq1_block_type_vlc[4][2]; 49 extern const uint8_t ff_svq1_intra_multistage_vlc[6][8][2]; 50 extern const uint8_t ff_svq1_inter_multistage_vlc[6][8][2]; 51 extern const uint16_t ff_svq1_intra_mean_vlc[256][2]; 52 extern const uint16_t ff_svq1_inter_mean_vlc[512][2]; 53 54 extern const uint16_t ff_svq1_frame_size_table[7][2]; 55 56 #endif /* AVCODEC_SVQ1_H */ 57