src/jpeg2swf.c

   1 /* jpeg2swf.c
   2
   3    JPEG to SWF converter tool
   4
   5    Part of the swftools package.
   6
   7    Copyright (c) 2001 Rainer Böhme <rfxswf@reflex-studio.de>
   8    Copyright (c) 2002,2003 Matthias Kramm <kramm@quiss.org>
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 2 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program; if not, write to the Free Software
  22    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
  23
  24 #include <stdio.h>
  25 #include <math.h>
  26 #include <fcntl.h>
  27 #include <jpeglib.h>
  28 #include "../lib/rfxswf.h"
  29 #include "../lib/args.h"        // not really a header ;-)
  30
  31 #define MAX_INPUT_FILES 1024
  32 #define VERBOSE(x) (global.verbose>=x)
  33
  34 struct {
  35     int quality;
  36     float framerate;
  37     int max_image_width;
  38     int max_image_height;
  39     int force_width;
  40     int force_height;
  41     int nfiles;
  42     int verbose;
  43     char *outfile;
  44     int mx;
  45     int version;
  46 } global;
  47
  48 typedef struct _image {
  49     char *filename;
  50     int quality;
  51     int width;
  52     int height;
  53 } image_t;
  54 image_t image[MAX_INPUT_FILES];
  55
  56 VIDEOSTREAM stream;
  57
  58 TAG *MovieStart(SWF * swf, float framerate, int dx, int dy)
  59 {
  60     TAG *t;
  61     RGBA rgb;
  62
  63     memset(swf, 0x00, sizeof(SWF));
  64
  65     swf->fileVersion = global.version;
  66     swf->frameRate = (int)(256.0 * framerate);
  67     swf->movieSize.xmax = dx * 20;
  68     swf->movieSize.ymax = dy * 20;
  69
  70     t = swf->firstTag = swf_InsertTag(NULL, ST_SETBACKGROUNDCOLOR);
  71
  72     rgb.r = rgb.g = rgb.b = rgb.a = 0x00;
  73     swf_SetRGB(t, &rgb);
  74
  75     if (global.mx) {
  76         t = swf_InsertTag(t, ST_DEFINEVIDEOSTREAM);
  77         swf_SetU16(t, 0xf00d);
  78         swf_SetVideoStreamDefine(t, &stream, 65535, dx, dy);
  79     }
  80
  81     return t;
  82 }
  83
  84 int MovieFinish(SWF * swf, TAG * t, char *sname)
  85 {
  86     int handle, so = fileno(stdout);
  87     t = swf_InsertTag(t, ST_END);
  88
  89     if ((!isatty(so)) && (!sname))
  90         handle = so;
  91     else {
  92         if (!sname)
  93             sname = "output.swf";
  94         handle = open(sname, O_BINARY | O_RDWR | O_CREAT | O_TRUNC, 0666);
  95     }
  96     if (swf_WriteSWF(handle, swf)<0)
  97             fprintf(stderr, "Unable to write output file: %s\n", sname);
  98     if (handle != so)
  99         close(handle);
 100
 101     swf_FreeTags(swf);
 102     return 0;
 103 }
 104
 105 int getJPEG(char*filename, int* width, int* height, RGBA**pic2)
 106 {
 107     struct jpeg_decompress_struct cinfo;
 108     struct jpeg_error_mgr jerr;
 109     struct jpeg_source_mgr mgr;
 110     int x,y;
 111     FILE*f;
 112     RGBA*pic,*js;
 113     U8*buf;
 114
 115     if ((f=fopen(filename,"rb"))==NULL) {
 116         fprintf(stderr, "rfxswf: file open error\n");
 117         return 0;
 118     }
 119
 120     cinfo.err = jpeg_std_error(&jerr);
 121     jpeg_create_decompress(&cinfo);
 122     jpeg_stdio_src(&cinfo, f);
 123     jpeg_read_header(&cinfo, TRUE);
 124     jpeg_start_decompress(&cinfo);
 125
 126     pic = malloc(cinfo.output_width*cinfo.output_height*sizeof(RGBA));
 127     buf = malloc(cinfo.output_width*4);
 128     memset(pic, 255, cinfo.output_width*cinfo.output_height*sizeof(RGBA));
 129     js = pic;
 130
 131     *width = cinfo.output_width;
 132     *height = cinfo.output_height;
 133
 134     for (y=0;y<cinfo.output_height;y++) {
 135         int x;
 136         jpeg_read_scanlines(&cinfo,&buf,1);
 137
 138         if(cinfo.out_color_space == JCS_GRAYSCALE) {
 139             for(x=0;x<cinfo.output_width;x++) {
 140                 js[x].r = js[x].g = js[x].b = buf[x];
 141             }
 142         } else if(cinfo.out_color_space == JCS_RGB) {
 143             for (x=0;x<cinfo.output_width;x++)
 144             {
 145                 js[x].r = buf[x*3+0];
 146                 js[x].g = buf[x*3+1];
 147                 js[x].b = buf[x*3+2];
 148             }
 149         } else if(cinfo.out_color_space == JCS_YCCK) {
 150             //FIXME
 151             fprintf(stderr, "Error: Can't convert YCCK to RGB.\n");
 152             return -1;
 153         } else if(cinfo.out_color_space == JCS_YCbCr) {
 154             for(x=0;x<cinfo.output_width;x++) {
 155                 int y = buf[x*3+0];
 156                 int u = buf[x*3+1];
 157                 int v = buf[x*3+1];
 158                 js[x].r = y + ((360*(v-128))>>8);
 159                 js[x].g = y - ((88*(u-128)+183*(v-128))>>8);
 160                 js[x].b = y + ((455 * (u-128))>>8);
 161             }
 162         }
 163         else if(cinfo.out_color_space == JCS_CMYK)
 164         {
 165             for(x=0;x<cinfo.output_width;x++) {
 166                   int white = 255 - buf[x*4+3];
 167                   js[x].r = white - ((buf[x*4]*white)>>8);
 168                   js[x].g = white - ((buf[x*4+1]*white)>>8);
 169                   js[x].b = white - ((buf[x*4+2]*white)>>8);
 170             }
 171         }
 172         js += cinfo.output_width;
 173     }
 174
 175     jpeg_finish_decompress(&cinfo);
 176     jpeg_destroy_decompress(&cinfo);
 177
 178     free(buf);
 179     *pic2 = pic;
 180     return 1;
 181 }
 182
 183
 184 int frame = 0;
 185 TAG *MovieAddFrame(SWF * swf, TAG * t, char *sname, int quality,
 186                    int id, int width, int height)
 187 {
 188     SHAPE *s;
 189     SRECT r;
 190     MATRIX m;
 191     int fs;
 192
 193
 194     if(global.mx) {
 195         int sizex, sizey;
 196         RGBA * pic2;
 197         SWFPLACEOBJECT obj;
 198         int quant=0;
 199         getJPEG(sname, &sizex, &sizey, &pic2);
 200         if(sizex != stream.owidth || sizey != stream.oheight) {
 201             fprintf(stderr, "All images must have the same dimensions if using -m!");
 202             exit(1);
 203         }
 204
 205         t = swf_InsertTag(t, ST_VIDEOFRAME);
 206         swf_SetU16(t, 0xf00d);
 207         quant = 1+(30-(30*quality)/100);
 208         if(!(frame&127)) {
 209             swf_SetVideoStreamIFrame(t, &stream, pic2, quant);
 210         } else {
 211             swf_SetVideoStreamPFrame(t, &stream, pic2, quant);
 212         }
 213
 214         t = swf_InsertTag(t, ST_PLACEOBJECT2);
 215         swf_GetPlaceObject(0, &obj);
 216         if(frame==0) {
 217             obj.depth = 1;
 218             obj.id = 0xf00d;
 219         } else {
 220             obj.depth = 1;
 221             obj.move = 1;
 222             obj.ratio = frame;
 223         }
 224         swf_SetPlaceObject(t,&obj);
 225
 226         t = swf_InsertTag(t, ST_SHOWFRAME);
 227     } else {
 228         t = swf_InsertTag(t, ST_DEFINEBITSJPEG2);
 229         swf_SetU16(t, id);              // id
 230         swf_SetJPEGBits(t,sname,quality);
 231
 232         t = swf_InsertTag(t, ST_DEFINESHAPE);
 233         swf_ShapeNew(&s);
 234         swf_GetMatrix(NULL, &m);
 235         m.sx = 20 * 0x10000;
 236         m.sy = 20 * 0x10000;
 237         fs = swf_ShapeAddBitmapFillStyle(s, &m, id, 0);
 238         swf_SetU16(t, id + 1);  // id
 239         r.xmin = r.ymin = 0;
 240         r.xmax = width * 20;
 241         r.ymax = height * 20;
 242         swf_SetRect(t, &r);
 243         swf_SetShapeHeader(t, s);
 244         swf_ShapeSetAll(t, s, 0, 0, 0, fs, 0);
 245         swf_ShapeSetLine(t, s, r.xmax, 0);
 246         swf_ShapeSetLine(t, s, 0, r.ymax);
 247         swf_ShapeSetLine(t, s, -r.xmax, 0);
 248         swf_ShapeSetLine(t, s, 0, -r.ymax);
 249         swf_ShapeSetEnd(t);
 250
 251         t = swf_InsertTag(t, ST_REMOVEOBJECT2);
 252         swf_SetU16(t, 1);               // depth
 253
 254         t = swf_InsertTag(t, ST_PLACEOBJECT2);
 255         swf_GetMatrix(NULL, &m);
 256         m.tx = (swf->movieSize.xmax - (int) width * 20) / 2;
 257         m.ty = (swf->movieSize.ymax - (int) height * 20) / 2;
 258         swf_ObjectPlace(t, id + 1, 1, &m, NULL, NULL);
 259
 260         t = swf_InsertTag(t, ST_SHOWFRAME);
 261     }
 262     frame++;
 263
 264     return t;
 265 }
 266
 267 int CheckInputFile(image_t* i, char *fname, char **realname)
 268 {
 269     struct jpeg_decompress_struct cinfo;
 270     struct jpeg_error_mgr jerr;
 271     FILE *f;
 272     char *s = malloc(strlen(fname) + 5);
 273     int width, height;
 274
 275     if (!s)
 276         exit(2);
 277     (*realname) = s;
 278     strcpy(s, fname);
 279
 280     // Check whether file exists (with typical extensions)
 281
 282     if ((f = fopen(s, "rb")) == NULL) {
 283         sprintf(s, "%s.jpg", fname);
 284         if ((f = fopen(s, "rb")) == NULL) {
 285             sprintf(s, "%s.jpeg", fname);
 286             if ((f = fopen(s, "rb")) == NULL) {
 287                 sprintf(s, "%s.JPG", fname);
 288                 if ((f = fopen(s, "rb")) == NULL) {
 289                     sprintf(s, "%s.JPEG", fname);
 290                     if ((f = fopen(s, "rb")) == NULL)
 291                         return -1;
 292                 }
 293             }
 294         }
 295     }
 296
 297     cinfo.err = jpeg_std_error(&jerr);
 298     jpeg_create_decompress(&cinfo);
 299     jpeg_stdio_src(&cinfo, f);
 300     jpeg_read_header(&cinfo, TRUE);
 301
 302     width = cinfo.image_width;
 303     height = cinfo.image_height;
 304
 305     i->width = width;
 306     i->height = height;
 307
 308     // Get image dimensions
 309
 310     if (global.max_image_width < width)
 311         global.max_image_width = width;
 312     if (global.max_image_height < height)
 313         global.max_image_height = height;
 314
 315     jpeg_destroy_decompress(&cinfo);
 316     fclose(f);
 317
 318     return 0;
 319 }
 320
 321 int args_callback_option(char *arg, char *val)
 322 {
 323     int res = 0;
 324     if (arg[1])
 325         res = -1;
 326     else
 327         switch (arg[0]) {
 328         case 'q':
 329             if (val)
 330                 global.quality = atoi(val);
 331             if ((global.quality < 1) ||(global.quality > 100)) {
 332                 if (VERBOSE(1))
 333                     fprintf(stderr,
 334                             "Error: You must specify a valid quality between 1 and 100.\n");
 335                 exit(1);
 336             }
 337             res = 1;
 338             break;
 339
 340         case 'r':
 341             if (val)
 342                 global.framerate = atof(val);
 343             if ((global.framerate < 1.0/256) || (global.framerate >= 256.0)) {
 344                 if (VERBOSE(1))
 345                     fprintf(stderr,
 346                             "Error: You must specify a valid framerate between 1 and 10000.\n");
 347                 exit(1);
 348             }
 349             res = 1;
 350             break;
 351
 352         case 'o':
 353             if (val)
 354                 global.outfile = val;
 355             res = 1;
 356             break;
 357
 358         case 'v':
 359             if (val)
 360                 global.verbose = atoi(val);
 361             res = 1;
 362             break;
 363
 364         case 'X':
 365             if (val)
 366                 global.force_width = atoi(val);
 367             res = 1;
 368             break;
 369
 370         case 'm':
 371             global.mx = 1;
 372             global.version = 6;
 373             return 0;
 374
 375         case 'Y':
 376             if (val)
 377                 global.force_height = atoi(val);
 378             res = 1;
 379             break;
 380
 381         case 'V':
 382             printf("jpeg2swf - part of %s %s\n", PACKAGE, VERSION);
 383             exit(0);
 384
 385         default:
 386             res = -1;
 387             break;
 388         }
 389
 390     if (res < 0) {
 391         if (VERBOSE(1))
 392             fprintf(stderr, "Unknown option: -%s\n", arg);
 393         exit(1);
 394         return 0;
 395     }
 396     return res;
 397 }
 398
 399 static struct options_t options[] = {
 400 {"o", "output"},
 401 {"m", "mx"},
 402 {"q", "quality"},
 403 {"r", "rate"},
 404 {"X", "width"},
 405 {"Y", "height"},
 406 {"v", "verbose"},
 407 {"V", "version"},
 408 {0,0}
 409 };
 410
 411 int args_callback_longoption(char *name, char *val)
 412 {
 413     return args_long2shortoption(options, name, val);
 414 }
 415
 416 int args_callback_command(char *arg, char *next)        // actually used as filename
 417 {
 418     char *s;
 419     image_t* i = &image[global.nfiles];
 420     if (CheckInputFile(i, arg, &s) < 0) {
 421         if (VERBOSE(1))
 422             fprintf(stderr, "Unable to open input file: %s\n", arg);
 423         free(s);
 424     } else {
 425         i->filename = s;
 426         i->quality = global.quality;
 427         global.nfiles++;
 428         if (global.nfiles >= MAX_INPUT_FILES) {
 429             if (VERBOSE(1))
 430                 fprintf(stderr, "Error: Too many input files.\n");
 431             exit(1);
 432         }
 433     }
 434     return 0;
 435 }
 436
 437 void args_callback_usage(char *name)
 438 {
 439     printf("\n");
 440     printf("Usage: %s [-options [value]] imagefiles[.jpg]|[.jpeg] [...]\n", name);
 441     printf("\n");
 442     printf("-o , --output <outputfile>     Explicitly specify output file. (otherwise, output.swf will be used)\n");
 443     printf("-m , --mx                      Use Flash MX H.263 compression (use for correlated images)\n");
 444     printf("-q , --quality <quality>       Set compression quality (1-100, 1=worst, 100=best)\n");
 445     printf("-r , --rate <framerate>         Set movie framerate (frames per second)\n");
 446     printf("-X , --width <width>           Force movie width to <width> (default: autodetect)\n");
 447     printf("-Y , --height <height>         Force movie height to <height> (default: autodetect)\n");
 448     printf("-v , --verbose <level>         Set verbose level to <level> (0=quiet, 1=default, 2=debug)\n");
 449     printf("-V , --version                 Print version information and exit\n");
 450     printf("\n");
 451 }
 452
 453
 454 int main(int argc, char **argv)
 455 {
 456     SWF swf;
 457     TAG *t;
 458
 459     memset(&global, 0x00, sizeof(global));
 460
 461     global.quality = 60;
 462     global.framerate = 1.0;
 463     global.verbose = 1;
 464     global.version = 4;
 465
 466     processargs(argc, argv);
 467
 468     if (VERBOSE(2))
 469         fprintf(stderr, "Processing %i file(s)...\n", global.nfiles);
 470
 471     t = MovieStart(&swf, global.framerate,
 472                    global.force_width ? global.force_width : global.
 473                    max_image_width,
 474                    global.force_height ? global.force_height : global.
 475                    max_image_height);
 476
 477     {
 478         int i;
 479         for (i = 0; i < global.nfiles; i++) {
 480             if (VERBOSE(3))
 481                 fprintf(stderr, "[%03i] %s (%i%%, 1/%i)\n", i,
 482                         image[i].filename, image[i].quality);
 483             t = MovieAddFrame(&swf, t, image[i].filename, image[i].quality,
 484                               (i * 2) + 1,
 485                               image[i].width, image[i].height);
 486             free(image[i].filename);
 487         }
 488     }
 489
 490     MovieFinish(&swf, t, global.outfile);
 491
 492     return 0;
 493 }