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Diffstat (limited to 'libavfilter/libmpcodecs/mp_image.h')
| -rw-r--r-- | libavfilter/libmpcodecs/mp_image.h | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/libavfilter/libmpcodecs/mp_image.h b/libavfilter/libmpcodecs/mp_image.h new file mode 100644 index 0000000..50d3fa1 --- /dev/null +++ b/libavfilter/libmpcodecs/mp_image.h @@ -0,0 +1,150 @@ +/* + * This file is part of MPlayer. + * + * MPlayer is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * MPlayer is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with MPlayer; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#ifndef MPLAYER_MP_IMAGE_H +#define MPLAYER_MP_IMAGE_H + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#undef printf //FIXME +#undef fprintf //FIXME +#include "mp_msg.h" +#include "libavutil/avutil.h" +#include "libavutil/avassert.h" +#undef realloc +#undef malloc +#undef free +#undef rand +#undef srand +#undef printf +#undef strncpy +#define ASMALIGN(ZEROBITS) ".p2align " #ZEROBITS "\n\t" + + +//--------- codec's requirements (filled by the codec/vf) --------- + +//--- buffer content restrictions: +// set if buffer content shouldn't be modified: +#define MP_IMGFLAG_PRESERVE 0x01 +// set if buffer content will be READ for next frame's MC: (I/P mpeg frames) +#define MP_IMGFLAG_READABLE 0x02 + +//--- buffer width/stride/plane restrictions: (used for direct rendering) +// stride _have_to_ be aligned to MB boundary: [for DR restrictions] +#define MP_IMGFLAG_ACCEPT_ALIGNED_STRIDE 0x4 +// stride should be aligned to MB boundary: [for buffer allocation] +#define MP_IMGFLAG_PREFER_ALIGNED_STRIDE 0x8 +// codec accept any stride (>=width): +#define MP_IMGFLAG_ACCEPT_STRIDE 0x10 +// codec accept any width (width*bpp=stride -> stride%bpp==0) (>=width): +#define MP_IMGFLAG_ACCEPT_WIDTH 0x20 +//--- for planar formats only: +// uses only stride[0], and stride[1]=stride[2]=stride[0]>>mpi->chroma_x_shift +#define MP_IMGFLAG_COMMON_STRIDE 0x40 +// uses only planes[0], and calculates planes[1,2] from width,height,imgfmt +#define MP_IMGFLAG_COMMON_PLANE 0x80 + +#define MP_IMGFLAGMASK_RESTRICTIONS 0xFF + +//--------- color info (filled by mp_image_setfmt() ) ----------- +// set if number of planes > 1 +#define MP_IMGFLAG_PLANAR 0x100 +// set if it's YUV colorspace +#define MP_IMGFLAG_YUV 0x200 +// set if it's swapped (BGR or YVU) plane/byteorder +#define MP_IMGFLAG_SWAPPED 0x400 +// set if you want memory for palette allocated and managed by vf_get_image etc. +#define MP_IMGFLAG_RGB_PALETTE 0x800 + +#define MP_IMGFLAGMASK_COLORS 0xF00 + +// codec uses drawing/rendering callbacks (draw_slice()-like thing, DR method 2) +// [the codec will set this flag if it supports callbacks, and the vo _may_ +// clear it in get_image() if draw_slice() not implemented] +#define MP_IMGFLAG_DRAW_CALLBACK 0x1000 +// set if it's in video buffer/memory: [set by vo/vf's get_image() !!!] +#define MP_IMGFLAG_DIRECT 0x2000 +// set if buffer is allocated (used in destination images): +#define MP_IMGFLAG_ALLOCATED 0x4000 + +// buffer type was printed (do NOT set this flag - it's for INTERNAL USE!!!) +#define MP_IMGFLAG_TYPE_DISPLAYED 0x8000 + +// codec doesn't support any form of direct rendering - it has own buffer +// allocation. so we just export its buffer pointers: +#define MP_IMGTYPE_EXPORT 0 +// codec requires a static WO buffer, but it does only partial updates later: +#define MP_IMGTYPE_STATIC 1 +// codec just needs some WO memory, where it writes/copies the whole frame to: +#define MP_IMGTYPE_TEMP 2 +// I+P type, requires 2+ independent static R/W buffers +#define MP_IMGTYPE_IP 3 +// I+P+B type, requires 2+ independent static R/W and 1+ temp WO buffers +#define MP_IMGTYPE_IPB 4 +// Upper 16 bits give desired buffer number, -1 means get next available +#define MP_IMGTYPE_NUMBERED 5 +// Doesn't need any buffer, incomplete image (probably a first field only) +// we need this type to be able to differentiate between half frames and +// all other cases +#define MP_IMGTYPE_INCOMPLETE 6 + +#define MP_MAX_PLANES 4 + +#define MP_IMGFIELD_ORDERED 0x01 +#define MP_IMGFIELD_TOP_FIRST 0x02 +#define MP_IMGFIELD_REPEAT_FIRST 0x04 +#define MP_IMGFIELD_TOP 0x08 +#define MP_IMGFIELD_BOTTOM 0x10 +#define MP_IMGFIELD_INTERLACED 0x20 + +typedef struct mp_image { + unsigned int flags; + unsigned char type; + int number; + unsigned char bpp; // bits/pixel. NOT depth! for RGB it will be n*8 + unsigned int imgfmt; + int width,height; // stored dimensions + int x,y,w,h; // visible dimensions + unsigned char* planes[MP_MAX_PLANES]; + int stride[MP_MAX_PLANES]; + char * qscale; + int qstride; + int pict_type; // 0->unknown, 1->I, 2->P, 3->B + int fields; + int qscale_type; // 0->mpeg1/4/h263, 1->mpeg2 + int num_planes; + /* these are only used by planar formats Y,U(Cb),V(Cr) */ + int chroma_width; + int chroma_height; + int chroma_x_shift; // horizontal + int chroma_y_shift; // vertical + int usage_count; + /* for private use by filter or vo driver (to store buffer id or dmpi) */ + void* priv; +} mp_image_t; + +void mp_image_setfmt(mp_image_t* mpi,unsigned int out_fmt); +mp_image_t* new_mp_image(int w,int h); +void free_mp_image(mp_image_t* mpi); + +mp_image_t* alloc_mpi(int w, int h, unsigned long int fmt); +void mp_image_alloc_planes(mp_image_t *mpi); +void copy_mpi(mp_image_t *dmpi, mp_image_t *mpi); + +#endif /* MPLAYER_MP_IMAGE_H */ |
