libmpcodecs/vf_tile.c

   1 /*
   2  * filter to tile a serie of image in a single, bigger, image
   3  *
   4  * The parameters are:
   5  *
   6  *    xtile:  number of tile on the x axis (5)
   7  *    ytile:  number of tile on the y axis (5)
   8  *    xytile: when write the image, it can be different then xtile * ytile
   9  *            (for example you can write 8 * 7 tile, writing the file every
  10  *            50 frame, to have one image every 2 seconds @ 25 fps ).
  11  *    start:  pixel at the start (x/y), default 2
  12  *    delta:  pixel between 2 tile, (x/y), default 4
  13  *
  14  * For example a valid command line is:
  15  *    ... -vf tile=10:5:-1:4:8 ...
  16  * that make images of 10 * 5 tiles, with 4 pixel at the beginning and
  17  * 8 pixel between tiles.
  18  *
  19  * The default command is:
  20  *    ... -vf tile=5:5:25:2:4
  21  *
  22  * If you omit a parameter or put a value less then 0, the default is used.
  23  *    ... -vf tile=10:5::-1:10
  24  *
  25  * You can also stop when you're ok
  26  *    ... -vf tile=10:5
  27  * (and this is probably the option you will use more often ...)
  28  *
  29  * Probably is good to put the scale filter before the tile :-)
  30  *
  31  * copyright (c) 2003 Daniele Forghieri ( guru@digitalfantasy.it )
  32  *
  33  * This file is part of MPlayer.
  34  *
  35  * MPlayer is free software; you can redistribute it and/or modify
  36  * it under the terms of the GNU General Public License as published by
  37  * the Free Software Foundation; either version 2 of the License, or
  38  * (at your option) any later version.
  39  *
  40  * MPlayer is distributed in the hope that it will be useful,
  41  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  42  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  43  * GNU General Public License for more details.
  44  *
  45  * You should have received a copy of the GNU General Public License along
  46  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  47  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  48  */
  49
  50 // strtoi memcpy_pic
  51
  52 #include <stdio.h>
  53 #include <stdlib.h>
  54 #include <string.h>
  55
  56 #include "config.h"
  57 #include "mp_msg.h"
  58 #include "cpudetect.h"
  59
  60 #include "img_format.h"
  61 #include "mp_image.h"
  62 #include "vf.h"
  63
  64 #include "libvo/fastmemcpy.h"
  65
  66 /* private data */
  67 struct vf_priv_s {
  68     /* configuration data */
  69     /* Number on hor/ver tiles */
  70     int  xtile;
  71     int  ytile;
  72     /* When write the whole frame (default = xtile * ytile) */
  73     int  xytile;
  74     /* pixel at start / end (default = 4) */
  75     int  start;
  76     /* pixel between image (default = 2) */
  77     int  delta;
  78 //    /* Background color, in destination format */
  79 //    int  bkgSet;
  80
  81     /* Work data */
  82     int  frame_cur;
  83 };
  84
  85
  86 static int config(struct vf_instance *vf,
  87                   int width, int height, int d_width, int d_height,
  88                   unsigned int flags, unsigned int outfmt){
  89
  90     struct vf_priv_s  *priv;
  91     int               xw;
  92     int               yh;
  93
  94     /* Calculate new destination size */
  95     priv = vf->priv;
  96     xw = priv->start * 2 +
  97         priv->xtile * width +
  98         (priv->xtile - 1) * priv->delta;
  99     yh = priv->start * 2 +
 100         priv->ytile * height +
 101         (priv->ytile - 1) * priv->delta;
 102
 103     mp_msg(MSGT_VFILTER,MSGL_V,"vf_tile:config size set to %d * %d\n", xw, yh);
 104
 105     return vf_next_config(vf, xw, yh, xw, yh, flags, outfmt);
 106 }
 107
 108 /* Filter handler */
 109 static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts)
 110 {
 111     mp_image_t        *dmpi;
 112     struct vf_priv_s  *priv;
 113     int               t;
 114     int               xw;
 115     int               yh;
 116     int               xi;
 117     int               yi;
 118     int               by;
 119     int               dw;
 120
 121     /* Calculate new size */
 122     priv = vf->priv;
 123     xw = priv->start * 2 +
 124         priv->xtile * mpi->w +
 125         (priv->xtile - 1) * priv->delta;
 126     yh = priv->start * 2 +
 127         priv->ytile * mpi->h+
 128         (priv->ytile - 1) * priv->delta;
 129
 130     /* Get the big image! */
 131     dmpi=vf_get_image(vf->next, mpi->imgfmt,
 132                       MP_IMGTYPE_STATIC, MP_IMGFLAG_ACCEPT_STRIDE,
 133                       xw, yh);
 134
 135     /* bytes x pixel & bytes x line */
 136     if (mpi->flags & MP_IMGFLAG_PLANAR) {
 137         by = 1;
 138         dw = mpi->w;
 139     }
 140     else {
 141         by = (mpi->bpp + 7) / 8;
 142         dw = mpi->w * by;
 143     }
 144     /* Index position */
 145     t = priv->frame_cur % priv->xytile;
 146 //    if ((t == 0) && (bkg != 0)) {
 147 //        /* First frame, delete the background */
 148 //
 149 //    }
 150
 151     /* Position of image */
 152     xi = priv->start + (mpi->w + priv->delta) * (t % priv->xtile);
 153     yi = priv->start + (mpi->h + priv->delta) * (t / priv->xtile);
 154
 155     /* Copy first (or only) plane */
 156     memcpy_pic( dmpi->planes[0] + xi * by + yi * dmpi->stride[0],
 157                 mpi->planes[0],
 158                 dw,
 159                 mpi->h,
 160                 dmpi->stride[0],
 161                 mpi->stride[0]);
 162
 163     if (mpi->flags & MP_IMGFLAG_PLANAR) {
 164         /* Copy the other 2 planes */
 165         memcpy_pic( dmpi->planes[1] + (xi >> mpi->chroma_x_shift) + (yi >> mpi->chroma_y_shift) * dmpi->stride[1],
 166                     mpi->planes[1],
 167                     mpi->chroma_width,
 168                     mpi->chroma_height,
 169                     dmpi->stride[1],
 170                     mpi->stride[1]);
 171          memcpy_pic( dmpi->planes[2] + (xi >> mpi->chroma_x_shift) + (yi >> mpi->chroma_y_shift) * dmpi->stride[2],
 172                     mpi->planes[2],
 173                     mpi->chroma_width,
 174                     mpi->chroma_height,
 175                     dmpi->stride[2],
 176                     mpi->stride[2]);
 177     }
 178
 179     /* Increment current frame */
 180     ++priv->frame_cur;
 181
 182     if (t == priv->xytile - 1)  {
 183         /* Display the composition */
 184         dmpi->width  = xw;
 185         dmpi->height = yh;
 186         return vf_next_put_image(vf, dmpi, MP_NOPTS_VALUE);
 187     }
 188     else {
 189         /* Skip the frame */
 190         return 0;
 191     }
 192 }
 193
 194 static void uninit(struct vf_instance *vf)
 195 {
 196     /* free local data */
 197     free(vf->priv);
 198 }
 199
 200 /* rgb/bgr 12->32 supported & some Yxxx */
 201 static int query_format(struct vf_instance *vf, unsigned int fmt)
 202 {
 203         switch (fmt) {
 204         /* rgb 12...32 bit */
 205         case IMGFMT_RGB12:
 206         case IMGFMT_RGB15:
 207         case IMGFMT_RGB16:
 208         case IMGFMT_RGB24:
 209         case IMGFMT_RGB32:
 210         /* bgr 12...32 bit */
 211         case IMGFMT_BGR12:
 212         case IMGFMT_BGR15:
 213         case IMGFMT_BGR16:
 214         case IMGFMT_BGR24:
 215         case IMGFMT_BGR32:
 216         /* Various Yxxx Formats */
 217         case IMGFMT_444P:
 218         case IMGFMT_422P:
 219         case IMGFMT_411P:
 220         case IMGFMT_YUY2:
 221         case IMGFMT_YV12:
 222         case IMGFMT_I420:
 223         case IMGFMT_YVU9:
 224         case IMGFMT_IF09:
 225         case IMGFMT_IYUV:
 226                 return vf_next_query_format(vf, fmt);
 227         }
 228         return 0;
 229 }
 230
 231 /* Get an integer from the string pointed by s, adjusting s.
 232  * If the value is less then 0 def_val is used.
 233  * Return 0 for ok
 234  *
 235  * Look below ( in vf_open(...) ) for a use ...
 236  */
 237 static int parse_int(char **s, int *rt, int def_val)
 238 {
 239
 240     int     t = 0;
 241
 242     if (**s) {
 243         /* Get value (dec, hex or octal) */
 244         t = strtol( *s, s, 0 );
 245
 246         /* Use default */
 247         if (t < 0) {
 248             t = def_val;
 249         }
 250
 251         if (**s == ':') {
 252             /* Point to next character (problably a digit) */
 253             ++(*s);
 254         }
 255         else if (**s != '\0') {
 256             /* Error, we got some wrong char */
 257             return 1;
 258         }
 259     }
 260     else {
 261         t = def_val;
 262     }
 263
 264     *rt = t;
 265     return 0;
 266
 267 }
 268
 269 /* Main entry funct for the filter */
 270 static int vf_open(vf_instance_t *vf, char *args)
 271 {
 272     struct vf_priv_s *p;
 273     int              er;
 274
 275     vf->put_image    = put_image;
 276     vf->query_format = query_format;
 277     vf->config       = config;
 278     vf->uninit       = uninit;
 279     vf->default_reqs = VFCAP_ACCEPT_STRIDE;
 280     /* Private data */
 281     vf->priv = p = calloc(1, sizeof(struct vf_priv_s));
 282     if (p == NULL) {
 283         return 0;
 284     }
 285
 286     if (args == NULL) {
 287         /* Use the default */
 288         args = "";
 289     }
 290     /* Parse all the arguments */
 291     er =  parse_int( &args, &p->xtile,  5 );
 292     er |= parse_int( &args, &p->ytile,  5 );
 293     er |= parse_int( &args, &p->xytile, 0 );
 294     er |= parse_int( &args, &p->start,  2 );
 295     er |= parse_int( &args, &p->delta,  4 );
 296 //    er |= parse_int( &args, &p->bkgSet, 0 );
 297
 298     if (er) {
 299         mp_tmsg(MSGT_VFILTER, MSGL_ERR, "[VF_FRAMESTEP] Error parsing argument.\n");
 300         return 0;
 301     }
 302     /* Load some default */
 303     if ((p->xytile <= 0) || (p->xytile > p->xtile * p->ytile)) {
 304         p->xytile = p->xtile * p->ytile;
 305     }
 306
 307     /* Say what happen: use mp_msg(...)? */
 308     if ( mp_msg_test(MSGT_VFILTER,MSGL_V) ) {
 309         printf("vf_tile: tiling %d * %d, output every %d frames\n",
 310                p->xtile,
 311                p->ytile,
 312                p->xytile);
 313         printf("vf_tile: start pixel %d, delta pixel %d\n",
 314                p->start,
 315                p->delta);
 316 //      printf("vf_tile: background 0x%x\n",
 317 //             p->bkgSet);
 318     }
 319     return 1;
 320 }
 321
 322 const vf_info_t vf_info_tile = {
 323     "Make a single image tiling x/y images",
 324     "tile",
 325     "Daniele Forghieri",
 326     "",
 327     vf_open,
 328     NULL
 329 };