libvo/vo_jpeg.c

   1 /* ------------------------------------------------------------------------- */
   2
   3 /*
   4  * vo_jpeg.c, JPEG Renderer for MPlayer
   5  *
   6  *
   7  * Changelog
   8  *
   9  * Original version: Copyright 2002 by Pontscho (pontscho@makacs.poliod.hu)
  10  * 2003-04-25   Spring cleanup -- Alex
  11  * 2004-08-04   Added multiple subdirectory support -- Ivo (ivop@euronet.nl)
  12  * 2004-09-01   Cosmetics update -- Ivo
  13  * 2004-09-05   Added suboptions parser -- Ivo
  14  * 2005-01-16   Replaced suboption parser by call to subopt-helper --Ivo
  15  *
  16  */
  17
  18 /* ------------------------------------------------------------------------- */
  19
  20 /* Global Includes */
  21
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24 #include <string.h>
  25 #include <errno.h>
  26 #include <jpeglib.h>
  27 #include <sys/stat.h>
  28 #include <sys/types.h>
  29 #include <unistd.h>
  30
  31 /* ------------------------------------------------------------------------- */
  32
  33 /* Local Includes */
  34
  35 #include "config.h"
  36 #include "subopt-helper.h"
  37 #include "mp_msg.h"
  38 #include "video_out.h"
  39 #include "video_out_internal.h"
  40 #include "mplayer.h"                    /* for exit_player() */
  41 #include "help_mp.h"
  42
  43 /* ------------------------------------------------------------------------- */
  44
  45 /* Defines */
  46
  47 /* Used for temporary buffers to store file- and pathnames */
  48 #define BUFLENGTH 512
  49
  50 /* ------------------------------------------------------------------------- */
  51
  52 /* Info */
  53
  54 static vo_info_t info=
  55 {
  56         "JPEG file",
  57         "jpeg",
  58         "Zoltan Ponekker (pontscho@makacs.poliod.hu)",
  59         ""
  60 };
  61
  62 LIBVO_EXTERN (jpeg)
  63
  64 /* ------------------------------------------------------------------------- */
  65
  66 /* Global Variables */
  67
  68 static int image_width;
  69 static int image_height;
  70 static int image_d_width;
  71 static int image_d_height;
  72
  73 int jpeg_baseline = 1;
  74 int jpeg_progressive_mode = 0;
  75 int jpeg_optimize = 100;
  76 int jpeg_smooth = 0;
  77 int jpeg_quality = 75;
  78 int jpeg_dpi = 72; /** Screen resolution = 72 dpi */
  79 char *jpeg_outdir = NULL;
  80 char *jpeg_subdirs = NULL;
  81 int jpeg_maxfiles = 1000;
  82
  83 static int framenum = 0;
  84
  85 /* ------------------------------------------------------------------------- */
  86
  87 /** \brief Create a directory.
  88  *
  89  *  This function creates a directory. If it already exists, it tests if
  90  *  it's a directory and not something else, and if it is, it tests whether
  91  *  the directory is writable or not.
  92  *
  93  * \param buf       Pointer to directory name.
  94  * \param verbose   Verbose on success. If verbose is non-zero, it will print
  95  *                  a message if it was successful in creating the directory.
  96  *
  97  * \return nothing  In case anything fails, the player will exit. If it
  98  *                  returns, everything went well.
  99  */
 100
 101 static void jpeg_mkdir(char *buf, int verbose) {
 102     struct stat stat_p;
 103
 104 #ifndef __MINGW32__
 105     if ( mkdir(buf, 0755) < 0 ) {
 106 #else
 107     if ( mkdir(buf) < 0 ) {
 108 #endif
 109         switch (errno) { /* use switch in case other errors need to be caught
 110                             and handled in the future */
 111             case EEXIST:
 112                 if ( stat(buf, &stat_p ) < 0 ) {
 113                     mp_msg(MSGT_VO, MSGL_ERR, "%s: %s: %s\n", info.short_name,
 114                             MSGTR_VO_GenericError, strerror(errno) );
 115                     mp_msg(MSGT_VO, MSGL_ERR, "%s: %s %s\n", info.short_name,
 116                             MSGTR_VO_UnableToAccess,buf);
 117                     exit_player(MSGTR_Exit_error);
 118                 }
 119                 if ( !S_ISDIR(stat_p.st_mode) ) {
 120                     mp_msg(MSGT_VO, MSGL_ERR, "%s: %s %s\n", info.short_name,
 121                             buf, MSGTR_VO_ExistsButNoDirectory);
 122                     exit_player(MSGTR_Exit_error);
 123                 }
 124                 if ( !(stat_p.st_mode & S_IWUSR) ) {
 125                     mp_msg(MSGT_VO, MSGL_ERR, "%s: %s - %s\n", info.short_name,
 126                             buf, MSGTR_VO_DirExistsButNotWritable);
 127                     exit_player(MSGTR_Exit_error);
 128                 }
 129
 130                 mp_msg(MSGT_VO, MSGL_INFO, "%s: %s - %s\n", info.short_name,
 131                         buf, MSGTR_VO_DirExistsAndIsWritable);
 132                 break;
 133
 134             default:
 135                 mp_msg(MSGT_VO, MSGL_ERR, "%s: %s: %s\n", info.short_name,
 136                         MSGTR_VO_GenericError, strerror(errno) );
 137                 mp_msg(MSGT_VO, MSGL_ERR, "%s: %s - %s\n", info.short_name,
 138                         buf, MSGTR_VO_CantCreateDirectory);
 139                 exit_player(MSGTR_Exit_error);
 140         } /* end switch */
 141     } else if ( verbose ) {
 142         mp_msg(MSGT_VO, MSGL_INFO, "%s: %s - %s\n", info.short_name,
 143                 buf, MSGTR_VO_DirectoryCreateSuccess);
 144     } /* end if */
 145 }
 146
 147 /* ------------------------------------------------------------------------- */
 148
 149 static int config(uint32_t width, uint32_t height, uint32_t d_width,
 150                        uint32_t d_height, uint32_t flags, char *title,
 151                        uint32_t format)
 152 {
 153     char buf[BUFLENGTH];
 154
 155     /* Create outdir. */
 156
 157     snprintf(buf, BUFLENGTH, "%s", jpeg_outdir);
 158
 159     jpeg_mkdir(buf, 1); /* This function only returns if creation was
 160                            successful. If not, the player will exit. */
 161
 162     image_height = height;
 163     image_width = width;
 164     /* Save for JFIF-Header PAR */
 165     image_d_width = d_width;
 166     image_d_height = d_height;
 167
 168     return 0;
 169 }
 170
 171 /* ------------------------------------------------------------------------- */
 172
 173 static uint32_t jpeg_write(uint8_t * name, uint8_t * buffer)
 174 {
 175     FILE *outfile;
 176     struct jpeg_compress_struct cinfo;
 177     struct jpeg_error_mgr jerr;
 178     JSAMPROW row_pointer[1];
 179     int row_stride;
 180
 181     if ( !buffer ) return 1;
 182     if ( (outfile = fopen(name, "wb") ) == NULL ) {
 183         mp_msg(MSGT_VO, MSGL_ERR, "\n%s: %s\n", info.short_name,
 184                 MSGTR_VO_CantCreateFile);
 185         mp_msg(MSGT_VO, MSGL_ERR, "%s: %s: %s\n",
 186                 info.short_name, MSGTR_VO_GenericError,
 187                 strerror(errno) );
 188         exit_player(MSGTR_Exit_error);
 189     }
 190
 191     cinfo.err = jpeg_std_error(&jerr);
 192     jpeg_create_compress(&cinfo);
 193     jpeg_stdio_dest(&cinfo, outfile);
 194
 195     cinfo.image_width = image_width;
 196     cinfo.image_height = image_height;
 197     cinfo.input_components = 3;
 198     cinfo.in_color_space = JCS_RGB;
 199
 200     jpeg_set_defaults(&cinfo);
 201     /* Important: Header info must be set AFTER jpeg_set_defaults() */
 202     cinfo.write_JFIF_header = TRUE;
 203     cinfo.JFIF_major_version = 1;
 204     cinfo.JFIF_minor_version = 2;
 205     cinfo.density_unit = 1; /* 0=unknown, 1=dpi, 2=dpcm */
 206     /* Image DPI is determined by Y_density, so we leave that at
 207        jpeg_dpi if possible and crunch X_density instead (PAR > 1) */
 208     cinfo.X_density = jpeg_dpi*image_width/image_d_width;
 209     cinfo.Y_density = jpeg_dpi*image_height/image_d_height;
 210     cinfo.write_Adobe_marker = TRUE;
 211
 212     jpeg_set_quality(&cinfo,jpeg_quality, jpeg_baseline);
 213     cinfo.optimize_coding = jpeg_optimize;
 214     cinfo.smoothing_factor = jpeg_smooth;
 215
 216     if ( jpeg_progressive_mode ) {
 217         jpeg_simple_progression(&cinfo);
 218     }
 219
 220     jpeg_start_compress(&cinfo, TRUE);
 221
 222     row_stride = image_width * 3;
 223     while (cinfo.next_scanline < cinfo.image_height) {
 224         row_pointer[0] = &buffer[cinfo.next_scanline * row_stride];
 225         (void)jpeg_write_scanlines(&cinfo, row_pointer,1);
 226     }
 227
 228     jpeg_finish_compress(&cinfo);
 229     fclose(outfile);
 230     jpeg_destroy_compress(&cinfo);
 231
 232     return 0;
 233 }
 234
 235 /* ------------------------------------------------------------------------- */
 236
 237 static int draw_frame(uint8_t *src[])
 238 {
 239     static int framecounter = 0, subdircounter = 0;
 240     char buf[BUFLENGTH];
 241     static char subdirname[BUFLENGTH] = "";
 242
 243     /* Start writing to new subdirectory after a certain amount of frames */
 244     if ( framecounter == jpeg_maxfiles ) {
 245         framecounter = 0;
 246     }
 247
 248     /* If framecounter is zero (or reset to zero), increment subdirectory
 249      * number and create the subdirectory.
 250      * If jpeg_subdirs is not set, do nothing and resort to old behaviour. */
 251     if ( !framecounter && jpeg_subdirs ) {
 252         subdircounter++;
 253         snprintf(subdirname, BUFLENGTH, "%s%08d", jpeg_subdirs, subdircounter);
 254         snprintf(buf, BUFLENGTH, "%s/%s", jpeg_outdir, subdirname);
 255         jpeg_mkdir(buf, 0); /* This function only returns if creation was
 256                                successful. If not, the player will exit. */
 257     }
 258
 259     framenum++;
 260
 261     /* snprintf the full pathname of the outputfile */
 262     snprintf(buf, BUFLENGTH, "%s/%s/%08d.jpg", jpeg_outdir, subdirname,
 263                                                                     framenum);
 264
 265     framecounter++;
 266
 267     return jpeg_write(buf, src[0]);
 268 }
 269
 270 /* ------------------------------------------------------------------------- */
 271
 272 static void draw_osd(void)
 273 {
 274 }
 275
 276 /* ------------------------------------------------------------------------- */
 277
 278 static void flip_page (void)
 279 {
 280 }
 281
 282 /* ------------------------------------------------------------------------- */
 283
 284 static int draw_slice(uint8_t *src[], int stride[], int w, int h,
 285                            int x, int y)
 286 {
 287     return 0;
 288 }
 289
 290 /* ------------------------------------------------------------------------- */
 291
 292 static int query_format(uint32_t format)
 293 {
 294     if (format == IMGFMT_RGB24) {
 295         return VFCAP_CSP_SUPPORTED|VFCAP_CSP_SUPPORTED_BY_HW;
 296     }
 297
 298     return 0;
 299 }
 300
 301 /* ------------------------------------------------------------------------- */
 302
 303 static void uninit(void)
 304 {
 305     if (jpeg_subdirs) {
 306         free(jpeg_subdirs);
 307         jpeg_subdirs = NULL;
 308     }
 309     if (jpeg_outdir) {
 310         free(jpeg_outdir);
 311         jpeg_outdir = NULL;
 312     }
 313 }
 314
 315 /* ------------------------------------------------------------------------- */
 316
 317 static void check_events(void)
 318 {
 319 }
 320
 321 /* ------------------------------------------------------------------------- */
 322
 323 /** \brief Validation function for values [0-100]
 324  */
 325
 326 static int int_zero_hundred(int *val)
 327 {
 328     if ( (*val >=0) && (*val<=100) )
 329         return 1;
 330     return 0;
 331 }
 332
 333 static int preinit(const char *arg)
 334 {
 335     opt_t subopts[] = {
 336         {"progressive", OPT_ARG_BOOL,   &jpeg_progressive_mode, NULL, 0},
 337         {"baseline",    OPT_ARG_BOOL,   &jpeg_baseline,         NULL, 0},
 338         {"optimize",    OPT_ARG_INT,    &jpeg_optimize,
 339                                             (opt_test_f)int_zero_hundred, 0},
 340         {"smooth",      OPT_ARG_INT,    &jpeg_smooth,
 341                                             (opt_test_f)int_zero_hundred, 0},
 342         {"quality",     OPT_ARG_INT,    &jpeg_quality,
 343                                             (opt_test_f)int_zero_hundred, 0},
 344         {"dpi",         OPT_ARG_INT,    &jpeg_dpi,              NULL, 0},
 345         {"outdir",      OPT_ARG_MSTRZ,  &jpeg_outdir,           NULL, 0},
 346         {"subdirs",     OPT_ARG_MSTRZ,  &jpeg_subdirs,          NULL, 0},
 347         {"maxfiles",    OPT_ARG_INT,    &jpeg_maxfiles, (opt_test_f)int_pos, 0},
 348         {NULL, 0, NULL, NULL, 0}
 349     };
 350     const char *info_message = NULL;
 351
 352     mp_msg(MSGT_VO, MSGL_INFO, "%s: %s\n", info.short_name,
 353                                             MSGTR_VO_ParsingSuboptions);
 354
 355     jpeg_progressive_mode = 0;
 356     jpeg_baseline = 1;
 357     jpeg_optimize = 100;
 358     jpeg_smooth = 0;
 359     jpeg_quality = 75;
 360     jpeg_maxfiles = 1000;
 361     jpeg_outdir = strdup(".");
 362     jpeg_subdirs = NULL;
 363
 364     if (subopt_parse(arg, subopts) != 0) {
 365         return -1;
 366     }
 367
 368     if (jpeg_progressive_mode) info_message = MSGTR_VO_JPEG_ProgressiveJPEG;
 369     else info_message = MSGTR_VO_JPEG_NoProgressiveJPEG;
 370     mp_msg(MSGT_VO, MSGL_INFO, "%s: %s\n", info.short_name, info_message);
 371
 372     if (jpeg_baseline) info_message = MSGTR_VO_JPEG_BaselineJPEG;
 373     else info_message = MSGTR_VO_JPEG_NoBaselineJPEG;
 374     mp_msg(MSGT_VO, MSGL_INFO, "%s: %s\n", info.short_name, info_message);
 375
 376     mp_msg(MSGT_VO, MSGL_V, "%s: optimize --> %d\n", info.short_name,
 377                                                                 jpeg_optimize);
 378     mp_msg(MSGT_VO, MSGL_V, "%s: smooth --> %d\n", info.short_name,
 379                                                                 jpeg_smooth);
 380     mp_msg(MSGT_VO, MSGL_V, "%s: quality --> %d\n", info.short_name,
 381                                                                 jpeg_quality);
 382     mp_msg(MSGT_VO, MSGL_V, "%s: dpi --> %d\n", info.short_name,
 383                                                                 jpeg_dpi);
 384     mp_msg(MSGT_VO, MSGL_V, "%s: outdir --> %s\n", info.short_name,
 385                                                                 jpeg_outdir);
 386     if (jpeg_subdirs) {
 387         mp_msg(MSGT_VO, MSGL_V, "%s: subdirs --> %s\n", info.short_name,
 388                                                                 jpeg_subdirs);
 389         mp_msg(MSGT_VO, MSGL_V, "%s: maxfiles --> %d\n", info.short_name,
 390                                                                 jpeg_maxfiles);
 391     }
 392
 393     mp_msg(MSGT_VO, MSGL_INFO, "%s: %s\n", info.short_name,
 394                                             MSGTR_VO_SuboptionsParsedOK);
 395     return 0;
 396 }
 397
 398 /* ------------------------------------------------------------------------- */
 399
 400 static int control(uint32_t request, void *data, ...)
 401 {
 402     switch (request) {
 403         case VOCTRL_QUERY_FORMAT:
 404             return query_format(*((uint32_t*)data));
 405     }
 406     return VO_NOTIMPL;
 407 }
 408
 409 /* ------------------------------------------------------------------------- */
 410
 411 #undef BUFLENGTH
 412
 413 /* ------------------------------------------------------------------------- */
 414