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 25typedef struct{ 26 VLC * j_ac_vlc[4];//they point to the static j_mb_vlc 27 VLC * j_orient_vlc; 28 VLC * j_dc_vlc[3]; 29 30 int use_quant_matrix; 31//set by ff_intrax8_common_init 32 uint8_t * prediction_table;//2*(mb_w*2) 33 ScanTable scantable[3]; 34//set by the caller codec 35 MpegEncContext * s; 36 int quant; 37 int dquant; 38 int qsum; 39//calculated per frame 40 int quant_dc_chroma; 41 int divide_quant_dc_luma; 42 int divide_quant_dc_chroma; 43//changed per block 44 int edges; 45 int flat_dc; 46 int predicted_dc; 47 int raw_orient; 48 int chroma_orient; 49 int orient; 50 int est_run; 51} IntraX8Context; 52 53void ff_intrax8_common_init(IntraX8Context * w, MpegEncContext * const s); 54void ff_intrax8_common_end(IntraX8Context * w); 55int ff_intrax8_decode_picture(IntraX8Context * w, int quant, int halfpq); 56 57#endif /* AVCODEC_INTRAX8_H */ 58