1 /* 2 * This file is part of MPlayer. 3 * 4 * MPlayer is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License as published by 6 * the Free Software Foundation; either version 2 of the License, or 7 * (at your option) any later version. 8 * 9 * MPlayer 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 12 * GNU General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License along 15 * with MPlayer; if not, write to the Free Software Foundation, Inc., 16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 17 */ 18 19 #ifndef MPLAYER_MP_IMAGE_H 20 #define MPLAYER_MP_IMAGE_H 21 22 #include <stdio.h> 23 #include <stdlib.h> 24 #include <string.h> 25 26 //--------- codec's requirements (filled by the codec/vf) --------- 27 28 //--- buffer content restrictions: 29 // set if buffer content shouldn't be modified: 30 #define MP_IMGFLAG_PRESERVE 0x01 31 // set if buffer content will be READ. 32 // This can be e.g. for next frame's MC: (I/P mpeg frames) - 33 // then in combination with MP_IMGFLAG_PRESERVE - or it 34 // can be because a video filter or codec will read a significant 35 // amount of data while processing that frame (e.g. blending something 36 // onto the frame, MV based intra prediction). 37 // A frame marked like this should not be placed in to uncachable 38 // video RAM for example. 39 #define MP_IMGFLAG_READABLE 0x02 40 41 //--- buffer width/stride/plane restrictions: (used for direct rendering) 42 // stride _have_to_ be aligned to MB boundary: [for DR restrictions] 43 #define MP_IMGFLAG_ACCEPT_ALIGNED_STRIDE 0x4 44 // stride should be aligned to MB boundary: [for buffer allocation] 45 #define MP_IMGFLAG_PREFER_ALIGNED_STRIDE 0x8 46 // codec accept any stride (>=width): 47 #define MP_IMGFLAG_ACCEPT_STRIDE 0x10 48 // codec accept any width (width*bpp=stride -> stride%bpp==0) (>=width): 49 #define MP_IMGFLAG_ACCEPT_WIDTH 0x20 50 //--- for planar formats only: 51 // uses only stride[0], and stride[1]=stride[2]=stride[0]>>mpi->chroma_x_shift 52 #define MP_IMGFLAG_COMMON_STRIDE 0x40 53 // uses only planes[0], and calculates planes[1,2] from width,height,imgfmt 54 #define MP_IMGFLAG_COMMON_PLANE 0x80 55 56 #define MP_IMGFLAGMASK_RESTRICTIONS 0xFF 57 58 //--------- color info (filled by mp_image_setfmt() ) ----------- 59 // set if number of planes > 1 60 #define MP_IMGFLAG_PLANAR 0x100 61 // set if it's YUV colorspace 62 #define MP_IMGFLAG_YUV 0x200 63 // set if it's swapped (BGR or YVU) plane/byteorder 64 #define MP_IMGFLAG_SWAPPED 0x400 65 // set if you want memory for palette allocated and managed by vf_get_image etc. 66 #define MP_IMGFLAG_RGB_PALETTE 0x800 67 68 #define MP_IMGFLAGMASK_COLORS 0xF00 69 70 // codec uses drawing/rendering callbacks (draw_slice()-like thing, DR method 2) 71 // [the codec will set this flag if it supports callbacks, and the vo _may_ 72 // clear it in get_image() if draw_slice() not implemented] 73 #define MP_IMGFLAG_DRAW_CALLBACK 0x1000 74 // set if it's in video buffer/memory: [set by vo/vf's get_image() !!!] 75 #define MP_IMGFLAG_DIRECT 0x2000 76 // set if buffer is allocated (used in destination images): 77 #define MP_IMGFLAG_ALLOCATED 0x4000 78 79 // buffer type was printed (do NOT set this flag - it's for INTERNAL USE!!!) 80 #define MP_IMGFLAG_TYPE_DISPLAYED 0x8000 81 82 // codec doesn't support any form of direct rendering - it has own buffer 83 // allocation. so we just export its buffer pointers: 84 #define MP_IMGTYPE_EXPORT 0 85 // codec requires a static WO buffer, but it does only partial updates later: 86 #define MP_IMGTYPE_STATIC 1 87 // codec just needs some WO memory, where it writes/copies the whole frame to: 88 #define MP_IMGTYPE_TEMP 2 89 // I+P type, requires 2+ independent static R/W buffers 90 #define MP_IMGTYPE_IP 3 91 // I+P+B type, requires 2+ independent static R/W and 1+ temp WO buffers 92 #define MP_IMGTYPE_IPB 4 93 // Upper 16 bits give desired buffer number, -1 means get next available 94 #define MP_IMGTYPE_NUMBERED 5 95 // Doesn't need any buffer, incomplete image (probably a first field only) 96 // we need this type to be able to differentiate between half frames and 97 // all other cases 98 #define MP_IMGTYPE_INCOMPLETE 6 99 100 #define MP_MAX_PLANES 4 101 102 #define MP_IMGFIELD_ORDERED 0x01 103 #define MP_IMGFIELD_TOP_FIRST 0x02 104 #define MP_IMGFIELD_REPEAT_FIRST 0x04 105 #define MP_IMGFIELD_TOP 0x08 106 #define MP_IMGFIELD_BOTTOM 0x10 107 #define MP_IMGFIELD_INTERLACED 0x20 108 109 typedef struct mp_image { 110 unsigned int flags; 111 unsigned char type; 112 int number; 113 unsigned char bpp; // bits/pixel. NOT depth! for RGB it will be n*8 114 unsigned int imgfmt; 115 int width,height; // stored dimensions 116 int x,y,w,h; // visible dimensions 117 unsigned char* planes[MP_MAX_PLANES]; 118 int stride[MP_MAX_PLANES]; 119 char * qscale; 120 int qstride; 121 int pict_type; // 0->unknown, 1->I, 2->P, 3->B 122 int fields; 123 int qscale_type; // 0->mpeg1/4/h263, 1->mpeg2 124 int num_planes; 125 /* these are only used by planar formats Y,U(Cb),V(Cr) */ 126 int chroma_width; 127 int chroma_height; 128 int chroma_x_shift; // horizontal 129 int chroma_y_shift; // vertical 130 int usage_count; 131 /* for private use by filter or vo driver (to store buffer id or dmpi) */ 132 void* priv; 133 } mp_image_t; 134 135 void mp_image_setfmt(mp_image_t* mpi,unsigned int out_fmt); 136 mp_image_t* new_mp_image(int w,int h); 137 void free_mp_image(mp_image_t* mpi); 138 139 mp_image_t* alloc_mpi(int w, int h, unsigned long int fmt); 140 void mp_image_alloc_planes(mp_image_t *mpi); 141 void copy_mpi(mp_image_t *dmpi, mp_image_t *mpi); 142 143 #endif /* MPLAYER_MP_IMAGE_H */ 144