| /* |
| * 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 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 libavcodec/svq1.h |
| * 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 { |
| int width; |
| int 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[8]; |
| |
| #endif /* AVCODEC_SVQ1_H */ |