/* * SVQ1 decoder * ported to MPlayer by Arpi <arpi@thot.banki.hu> * ported to libavcodec by Nick Kurshev <nickols_k@mail.ru> * * Copyright (C) 2002 the xine project * Copyright (C) 2002 the ffmpeg project * * SVQ1 Encoder (c) 2004 Mike Melanson <melanson@pcisys.net> * * 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 * Sorenson Vector Quantizer #1 (SVQ1) video codec. * For more information of the SVQ1 algorithm, visit: * http://www.pcisys.net/~melanson/codecs/ */ #ifndef AVCODEC_SVQ1_H #define AVCODEC_SVQ1_H #include <stdint.h> #define SVQ1_BLOCK_SKIP 0 #define SVQ1_BLOCK_INTER 1 #define SVQ1_BLOCK_INTER_4V 2 #define SVQ1_BLOCK_INTRA 3 struct svq1_frame_size { uint16_t width; uint16_t height; }; uint16_t ff_svq1_packet_checksum (const uint8_t *data, const int length, int value); extern const int8_t* const ff_svq1_inter_codebooks[6]; extern const int8_t* const ff_svq1_intra_codebooks[6]; extern const uint8_t ff_svq1_block_type_vlc[4][2]; extern const uint8_t ff_svq1_intra_multistage_vlc[6][8][2]; extern const uint8_t ff_svq1_inter_multistage_vlc[6][8][2]; extern const uint16_t ff_svq1_intra_mean_vlc[256][2]; extern const uint16_t ff_svq1_inter_mean_vlc[512][2]; extern const struct svq1_frame_size ff_svq1_frame_size_table[7]; #endif /* AVCODEC_SVQ1_H */