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  1. /*
  2.  * Copyright (c) 2003 Michael Niedermayer
  3.  *
  4.  * This file is part of FFmpeg.
  5.  *
  6.  * FFmpeg is free software; you can redistribute it and/or
  7.  * modify it under the terms of the GNU Lesser General Public
  8.  * License as published by the Free Software Foundation; either
  9.  * version 2.1 of the License, or (at your option) any later version.
  10.  *
  11.  * FFmpeg is distributed in the hope that it will be useful,
  12.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14.  * Lesser General Public License for more details.
  15.  *
  16.  * You should have received a copy of the GNU Lesser General Public
  17.  * License along with FFmpeg; if not, write to the Free Software
  18.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  19.  */
  20.  
  21. /**
  22.  * @file
  23.  * ASUS V1/V2 encoder/decoder common data.
  24.  */
  25.  
  26. #ifndef AVCODEC_ASV_H
  27. #define AVCODEC_ASV_H
  28.  
  29. #include <stdint.h>
  30.  
  31. #include "libavutil/mem.h"
  32.  
  33. #include "avcodec.h"
  34. #include "dsputil.h"
  35. #include "get_bits.h"
  36. #include "put_bits.h"
  37.  
  38. typedef struct ASV1Context{
  39.     AVCodecContext *avctx;
  40.     DSPContext dsp;
  41.     AVFrame picture;
  42.     PutBitContext pb;
  43.     GetBitContext gb;
  44.     ScanTable scantable;
  45.     int inv_qscale;
  46.     int mb_width;
  47.     int mb_height;
  48.     int mb_width2;
  49.     int mb_height2;
  50.     DECLARE_ALIGNED(16, int16_t, block)[6][64];
  51.     uint16_t intra_matrix[64];
  52.     int q_intra_matrix[64];
  53.     uint8_t *bitstream_buffer;
  54.     unsigned int bitstream_buffer_size;
  55. } ASV1Context;
  56.  
  57. extern const uint8_t ff_asv_scantab[64];
  58. extern const uint8_t ff_asv_ccp_tab[17][2];
  59. extern const uint8_t ff_asv_level_tab[7][2];
  60. extern const uint8_t ff_asv_dc_ccp_tab[8][2];
  61. extern const uint8_t ff_asv_ac_ccp_tab[16][2];
  62. extern const uint8_t ff_asv2_level_tab[63][2];
  63.  
  64. void ff_asv_common_init(AVCodecContext *avctx);
  65.  
  66. #endif /* AVCODEC_ASV_H */
  67.