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Diffstat (limited to 'libavcodec/svq1.h')
| -rw-r--r-- | libavcodec/svq1.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/libavcodec/svq1.h b/libavcodec/svq1.h new file mode 100644 index 0000000000..e0930bf9a8 --- /dev/null +++ b/libavcodec/svq1.h @@ -0,0 +1,61 @@ +/* + * 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 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 + +typedef struct { + int width; + int height; +} svq1_frame_size_t; + +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 svq1_frame_size_t ff_svq1_frame_size_table[8]; + +#endif /* AVCODEC_SVQ1_H */ |