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 "help_mp.h"
  59 #include "cpudetect.h"
  60
  61 #include "img_format.h"
  62 #include "mp_image.h"
  63 #include "vf.h"
  64
  65 #include "libvo/fastmemcpy.h"
  66
  67 /* private data */
  68 struct vf_priv_s {
  69     /* configuration data */
  70     /* Number on hor/ver tiles */
  71     int  xtile;
  72     int  ytile;
  73     /* When write the whole frame (default = xtile * ytile) */
  74     int  xytile;
  75     /* pixel at start / end (default = 4) */
  76     int  start;
  77     /* pixel between image (default = 2) */
  78     int  delta;
  79 //    /* Background color, in destination format */
  80 //    int  bkgSet;
  81
  82     /* Work data */
  83     int  frame_cur;
  84 };
  85
  86
  87 static int config(struct vf_instance* vf,
  88                   int width, int height, int d_width, int d_height,
  89                   unsigned int flags, unsigned int outfmt){
  90
  91     struct vf_priv_s  *priv;
  92     int               xw;
  93     int               yh;
  94
  95     /* Calculate new destination size */
  96     priv = vf->priv;
  97     xw = priv->start * 2 +
  98         priv->xtile * width +
  99         (priv->xtile - 1) * priv->delta;
 100     yh = priv->start * 2 +
 101         priv->ytile * height +
 102         (priv->ytile - 1) * priv->delta;
 103
 104     mp_msg(MSGT_VFILTER,MSGL_V,"vf_tile:config size set to %d * %d\n", xw, yh);
 105
 106     return vf_next_config(vf, xw, yh, xw, yh, flags, outfmt);
 107 }
 108
 109 /* Filter handler */
 110 static int put_image(struct vf_instance* vf, mp_image_t *mpi, double pts)
 111 {
 112     mp_image_t        *dmpi;
 113     struct vf_priv_s  *priv;
 114     int               t;
 115     int               xw;
 116     int               yh;
 117     int               xi;
 118     int               yi;
 119     int               by;
 120     int               dw;
 121
 122     /* Calculate new size */
 123     priv = vf->priv;
 124     xw = priv->start * 2 +
 125         priv->xtile * mpi->w +
 126         (priv->xtile - 1) * priv->delta;
 127     yh = priv->start * 2 +
 128         priv->ytile * mpi->h+
 129         (priv->ytile - 1) * priv->delta;
 130
 131     /* Get the big image! */
 132     dmpi=vf_get_image(vf->next, mpi->imgfmt,
 133                       MP_IMGTYPE_STATIC, MP_IMGFLAG_ACCEPT_STRIDE,
 134                       xw, yh);
 135
 136     /* bytes x pixel & bytes x line */
 137     if (mpi->flags & MP_IMGFLAG_PLANAR) {
 138         by = 1;
 139         dw = mpi->w;
 140     }
 141     else {
 142         by = (mpi->bpp + 7) / 8;
 143         dw = mpi->w * by;
 144     }
 145     /* Index position */
 146     t = priv->frame_cur % priv->xytile;
 147 //    if ((t == 0) && (bkg != 0)) {
 148 //        /* First frame, delete the background */
 149 //
 150 //    }
 151
 152     /* Position of image */
 153     xi = priv->start + (mpi->w + priv->delta) * (t % priv->xtile);
 154     yi = priv->start + (mpi->h + priv->delta) * (t / priv->xtile);
 155
 156     /* Copy first (or only) plane */
 157     memcpy_pic( dmpi->planes[0] + xi * by + yi * dmpi->stride[0],
 158                 mpi->planes[0],
 159                 dw,
 160                 mpi->h,
 161                 dmpi->stride[0],
 162                 mpi->stride[0]);
 163
 164     if (mpi->flags & MP_IMGFLAG_PLANAR) {
 165         /* Copy the other 2 planes */
 166         memcpy_pic( dmpi->planes[1] + (xi >> mpi->chroma_x_shift) + (yi >> mpi->chroma_y_shift) * dmpi->stride[1],
 167                     mpi->planes[1],
 168                     mpi->chroma_width,
 169                     mpi->chroma_height,
 170                     dmpi->stride[1],
 171                     mpi->stride[1]);
 172          memcpy_pic( dmpi->planes[2] + (xi >> mpi->chroma_x_shift) + (yi >> mpi->chroma_y_shift) * dmpi->stride[2],
 173                     mpi->planes[2],
 174                     mpi->chroma_width,
 175                     mpi->chroma_height,
 176                     dmpi->stride[2],
 177                     mpi->stride[2]);
 178     }
 179
 180     /* Increment current frame */
 181     ++priv->frame_cur;
 182
 183     if (t == priv->xytile - 1)  {
 184         /* Display the composition */
 185         dmpi->width  = xw;
 186         dmpi->height = yh;
 187         return vf_next_put_image(vf, dmpi, MP_NOPTS_VALUE);
 188     }
 189     else {
 190         /* Skip the frame */
 191         return 0;
 192     }
 193 }
 194
 195 static void uninit(struct vf_instance* vf)
 196 {
 197     /* free local data */
 198     free(vf->priv);
 199 }
 200
 201 /* rgb/bgr 15->32 supported & some Yxxx */
 202 static int query_format(struct vf_instance* vf, unsigned int fmt)
 203 {
 204         switch (fmt) {
 205         /* rgb 15 -> 32 bit */
 206         case IMGFMT_RGB15:
 207         case IMGFMT_RGB16:
 208         case IMGFMT_RGB24:
 209         case IMGFMT_RGB32:
 210         /* bgr 15 -> 32 bit */
 211         case IMGFMT_BGR15:
 212         case IMGFMT_BGR16:
 213         case IMGFMT_BGR24:
 214         case IMGFMT_BGR32:
 215         /* Various Yxxx Formats */
 216         case IMGFMT_444P:
 217         case IMGFMT_422P:
 218         case IMGFMT_411P:
 219         case IMGFMT_YUY2:
 220         case IMGFMT_YV12:
 221         case IMGFMT_I420:
 222         case IMGFMT_YVU9:
 223         case IMGFMT_IF09:
 224         case IMGFMT_IYUV:
 225                 return vf_next_query_format(vf, fmt);
 226         }
 227         return 0;
 228 }
 229
 230 /* Get an integer from the string pointed by s, adjusting s.
 231  * If the value is less then 0 def_val is used.
 232  * Return 0 for ok
 233  *
 234  * Look below ( in open(...) ) for a use ...
 235  */
 236 static int parse_int(char **s, int *rt, int def_val)
 237 {
 238
 239     int     t = 0;
 240
 241     if (**s) {
 242         /* Get value (dec, hex or octal) */
 243         t = strtol( *s, s, 0 );
 244
 245         /* Use default */
 246         if (t < 0) {
 247             t = def_val;
 248         }
 249
 250         if (**s == ':') {
 251             /* Point to next character (problably a digit) */
 252             ++(*s);
 253         }
 254         else if (**s != '\0') {
 255             /* Error, we got some wrong char */
 256             return 1;
 257         }
 258     }
 259     else {
 260         t = def_val;
 261     }
 262
 263     *rt = t;
 264     return 0;
 265
 266 }
 267
 268 /* Main entry funct for the filter */
 269 static int open(vf_instance_t *vf, char* args)
 270 {
 271     struct vf_priv_s *p;
 272     int              er;
 273
 274     vf->put_image    = put_image;
 275     vf->query_format = query_format;
 276     vf->config       = config;
 277     vf->uninit       = uninit;
 278     vf->default_reqs = VFCAP_ACCEPT_STRIDE;
 279     /* Private data */
 280     vf->priv = p = calloc(1, sizeof(struct vf_priv_s));
 281     if (p == NULL) {
 282         return 0;
 283     }
 284
 285     if (args == NULL) {
 286         /* Use the default */
 287         args = "";
 288     }
 289     /* Parse all the arguments */
 290     er =  parse_int( &args, &p->xtile,  5 );
 291     er |= parse_int( &args, &p->ytile,  5 );
 292     er |= parse_int( &args, &p->xytile, 0 );
 293     er |= parse_int( &args, &p->start,  2 );
 294     er |= parse_int( &args, &p->delta,  4 );
 295 //    er |= parse_int( &args, &p->bkgSet, 0 );
 296
 297     if (er) {
 298         mp_tmsg(MSGT_VFILTER, MSGL_ERR, "[VF_FRAMESTEP] Error parsing argument.\n");
 299         return 0;
 300     }
 301     /* Load some default */
 302     if ((p->xytile <= 0) || (p->xytile > p->xtile * p->ytile)) {
 303         p->xytile = p->xtile * p->ytile;
 304     }
 305
 306     /* Say what happen: use mp_msg(...)? */
 307     if ( mp_msg_test(MSGT_VFILTER,MSGL_V) ) {
 308         printf("vf_tile: tiling %d * %d, output every %d frames\n",
 309                p->xtile,
 310                p->ytile,
 311                p->xytile);
 312         printf("vf_tile: start pixel %d, delta pixel %d\n",
 313                p->start,
 314                p->delta);
 315 //      printf("vf_tile: background 0x%x\n",
 316 //             p->bkgSet);
 317     }
 318     return 1;
 319 }
 320
 321 const vf_info_t vf_info_tile = {
 322     "Make a single image tiling x/y images",
 323     "tile",
 324     "Daniele Forghieri",
 325     "",
 326     open,
 327     NULL
 328 };