1/* 2 * This file is part of FFmpeg. 3 * 4 * FFmpeg is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Lesser General Public 6 * License as published by the Free Software Foundation; either 7 * version 2.1 of the License, or (at your option) any later version. 8 * 9 * FFmpeg is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Lesser General Public License for more details. 13 * 14 * You should have received a copy of the GNU Lesser General Public 15 * License along with FFmpeg; if not, write to the Free Software 16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 17 */ 18 19#ifndef AVCODEC_INTRAX8_H 20#define AVCODEC_INTRAX8_H 21 22#include "get_bits.h" 23#include "mpegvideo.h" 24#include "intrax8dsp.h" 25#include "wmv2dsp.h" 26 27typedef struct IntraX8Context { 28 VLC * j_ac_vlc[4];//they point to the static j_mb_vlc 29 VLC * j_orient_vlc; 30 VLC * j_dc_vlc[3]; 31 32 int use_quant_matrix; 33//set by ff_intrax8_common_init 34 uint8_t * prediction_table;//2*(mb_w*2) 35 ScanTable scantable[3]; 36 WMV2DSPContext wdsp; 37 uint8_t idct_permutation[64]; 38//set by the caller codec 39 MpegEncContext * s; 40 IntraX8DSPContext dsp; 41 int quant; 42 int dquant; 43 int qsum; 44//calculated per frame 45 int quant_dc_chroma; 46 int divide_quant_dc_luma; 47 int divide_quant_dc_chroma; 48//changed per block 49 int edges; 50 int flat_dc; 51 int predicted_dc; 52 int raw_orient; 53 int chroma_orient; 54 int orient; 55 int est_run; 56} IntraX8Context; 57 58void ff_intrax8_common_init(IntraX8Context * w, MpegEncContext * const s); 59void ff_intrax8_common_end(IntraX8Context * w); 60int ff_intrax8_decode_picture(IntraX8Context * w, int quant, int halfpq); 61 62#endif /* AVCODEC_INTRAX8_H */ 63