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Revision 1.3 - (view) (download)
| 1 : | edgomez | 1.2 | /***************************************************************************** |
| 2 : | * | ||
| 3 : | * XVID MPEG-4 VIDEO CODEC | ||
| 4 : | * - GMC interpolation module header - | ||
| 5 : | * | ||
| 6 : | * Copyright(C) 2002-2003 Pascal Massimino <skal@planet-d.net> | ||
| 7 : | * | ||
| 8 : | * This program is free software ; you can redistribute it and/or modify | ||
| 9 : | * it under the terms of the GNU General Public License as published by | ||
| 10 : | * the Free Software Foundation ; either version 2 of the License, or | ||
| 11 : | * (at your option) any later version. | ||
| 12 : | * | ||
| 13 : | * This program is distributed in the hope that it will be useful, | ||
| 14 : | * but WITHOUT ANY WARRANTY ; without even the implied warranty of | ||
| 15 : | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| 16 : | * GNU General Public License for more details. | ||
| 17 : | * | ||
| 18 : | * You should have received a copy of the GNU General Public License | ||
| 19 : | * along with this program ; if not, write to the Free Software | ||
| 20 : | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
| 21 : | * | ||
| 22 : | Skal | 1.3 | * $Id: gmc.h,v 1.2 2004/03/22 22:36:24 edgomez Exp $ |
| 23 : | edgomez | 1.2 | * |
| 24 : | ****************************************************************************/ | ||
| 25 : | |||
| 26 : | #include "../portab.h" | ||
| 27 : | #include "../global.h" | ||
| 28 : | |||
| 29 : | Skal | 1.3 | /* ************************************************************* |
| 30 : | * will initialize internal pointers | ||
| 31 : | edgomez | 1.2 | */ |
| 32 : | |||
| 33 : | Skal | 1.3 | void init_GMC(const unsigned int cpu_flags); |
| 34 : | edgomez | 1.2 | |
| 35 : | /* ************************************************************* | ||
| 36 : | * Warning! It's Accuracy being passed, not 'resolution'! | ||
| 37 : | */ | ||
| 38 : | |||
| 39 : | void generate_GMCparameters(int nb_pts, const int accuracy, | ||
| 40 : | const WARPPOINTS *const pts, | ||
| 41 : | const int width, const int height, | ||
| 42 : | NEW_GMC_DATA *const gmc); | ||
| 43 : | |||
| 44 : | /* ******************************************************************* | ||
| 45 : | */ | ||
| 46 : | |||
| 47 : | void | ||
| 48 : | generate_GMCimage( const NEW_GMC_DATA *const gmc_data, /* [input] precalculated data */ | ||
| 49 : | const IMAGE *const pRef, /* [input] */ | ||
| 50 : | const int mb_width, | ||
| 51 : | const int mb_height, | ||
| 52 : | const int stride, | ||
| 53 : | const int stride2, | ||
| 54 : | const int fcode, /* [input] some parameters... */ | ||
| 55 : | const int32_t quarterpel, /* [input] for rounding avgMV */ | ||
| 56 : | const int reduced_resolution, /* [input] ignored */ | ||
| 57 : | const int32_t rounding, /* [input] for rounding image data */ | ||
| 58 : | MACROBLOCK *const pMBs, /* [output] average motion vectors */ | ||
| 59 : | IMAGE *const pGMC); /* [output] full warped image */ | ||
| 60 : | |||
| 61 : | Skal | 1.3 | /* ************************************************************* |
| 62 : | * utils | ||
| 63 : | */ | ||
| 64 : | |||
| 65 : | /* This is borrowed from decoder.c */ | ||
| 66 : | static __inline int | ||
| 67 : | gmc_sanitize(int value, int quarterpel, int fcode) | ||
| 68 : | { | ||
| 69 : | int length = 1 << (fcode+4); | ||
| 70 : | |||
| 71 : | #if 0 | ||
| 72 : | if (quarterpel) value *= 2; | ||
| 73 : | #endif | ||
| 74 : | |||
| 75 : | if (value < -length) | ||
| 76 : | return -length; | ||
| 77 : | else if (value >= length) | ||
| 78 : | return length-1; | ||
| 79 : | else return value; | ||
| 80 : | } | ||
| 81 : | |||
| 82 : | /* *************************************************************/ |
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