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64 lines
2.0 KiB
64 lines
2.0 KiB
/* |
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* SVQ1 decoder |
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* ported to MPlayer by Arpi <arpi@thot.banki.hu> |
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* ported to libavcodec by Nick Kurshev <nickols_k@mail.ru> |
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* |
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* Copyright (C) 2002 the xine project |
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* Copyright (C) 2002 the ffmpeg project |
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* |
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* SVQ1 Encoder (c) 2004 Mike Melanson <melanson@pcisys.net> |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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/** |
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* @file svq1.h |
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* Sorenson Vector Quantizer #1 (SVQ1) video codec. |
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* For more information of the SVQ1 algorithm, visit: |
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* http://www.pcisys.net/~melanson/codecs/ |
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*/ |
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#ifndef AVCODEC_SVQ1_H |
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#define AVCODEC_SVQ1_H |
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#include <stdint.h> |
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#define SVQ1_BLOCK_SKIP 0 |
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#define SVQ1_BLOCK_INTER 1 |
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#define SVQ1_BLOCK_INTER_4V 2 |
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#define SVQ1_BLOCK_INTRA 3 |
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typedef struct { |
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int width; |
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int height; |
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} svq1_frame_size_t; |
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uint16_t ff_svq1_packet_checksum (const uint8_t *data, const int length, |
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int value); |
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extern const int8_t* const ff_svq1_inter_codebooks[6]; |
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extern const int8_t* const ff_svq1_intra_codebooks[6]; |
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extern const uint8_t ff_svq1_block_type_vlc[4][2]; |
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extern const uint8_t ff_svq1_intra_multistage_vlc[6][8][2]; |
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extern const uint8_t ff_svq1_inter_multistage_vlc[6][8][2]; |
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extern const uint16_t ff_svq1_intra_mean_vlc[256][2]; |
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extern const uint16_t ff_svq1_inter_mean_vlc[512][2]; |
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extern const svq1_frame_size_t ff_svq1_frame_size_table[8]; |
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#endif /* AVCODEC_SVQ1_H */
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