00001 /* 00002 * SVQ1 decoder 00003 * ported to MPlayer by Arpi <arpi@thot.banki.hu> 00004 * ported to libavcodec by Nick Kurshev <nickols_k@mail.ru> 00005 * 00006 * Copyright (C) 2002 the xine project 00007 * Copyright (C) 2002 the ffmpeg project 00008 * 00009 * SVQ1 Encoder (c) 2004 Mike Melanson <melanson@pcisys.net> 00010 * 00011 * This file is part of FFmpeg. 00012 * 00013 * FFmpeg is free software; you can redistribute it and/or 00014 * modify it under the terms of the GNU Lesser General Public 00015 * License as published by the Free Software Foundation; either 00016 * version 2.1 of the License, or (at your option) any later version. 00017 * 00018 * FFmpeg is distributed in the hope that it will be useful, 00019 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00020 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00021 * Lesser General Public License for more details. 00022 * 00023 * You should have received a copy of the GNU Lesser General Public 00024 * License along with FFmpeg; if not, write to the Free Software 00025 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00026 */ 00027 00035 #ifndef AVCODEC_SVQ1_H 00036 #define AVCODEC_SVQ1_H 00037 00038 #include <stdint.h> 00039 00040 #define SVQ1_BLOCK_SKIP 0 00041 #define SVQ1_BLOCK_INTER 1 00042 #define SVQ1_BLOCK_INTER_4V 2 00043 #define SVQ1_BLOCK_INTRA 3 00044 00045 struct svq1_frame_size { 00046 int width; 00047 int height; 00048 }; 00049 00050 uint16_t ff_svq1_packet_checksum (const uint8_t *data, const int length, 00051 int value); 00052 00053 extern const int8_t* const ff_svq1_inter_codebooks[6]; 00054 extern const int8_t* const ff_svq1_intra_codebooks[6]; 00055 00056 extern const uint8_t ff_svq1_block_type_vlc[4][2]; 00057 extern const uint8_t ff_svq1_intra_multistage_vlc[6][8][2]; 00058 extern const uint8_t ff_svq1_inter_multistage_vlc[6][8][2]; 00059 extern const uint16_t ff_svq1_intra_mean_vlc[256][2]; 00060 extern const uint16_t ff_svq1_inter_mean_vlc[512][2]; 00061 00062 extern const struct svq1_frame_size ff_svq1_frame_size_table[8]; 00063 00064 #endif /* AVCODEC_SVQ1_H */
1.5.8