git.sesse.net Git - vlc/blob - modules/codec/subsdec.c

   1 /*****************************************************************************
   2  * subsdec.c : text subtitles decoder
   3  *****************************************************************************
   4  * Copyright (C) 2000-2006 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Gildas Bazin <gbazin@videolan.org>
   8  *          Samuel Hocevar <sam@zoy.org>
   9  *          Derk-Jan Hartman <hartman at videolan dot org>
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  24  *****************************************************************************/
  25
  26 /*****************************************************************************
  27  * Preamble
  28  *****************************************************************************/
  29 #include <vlc/vlc.h>
  30 #include <vlc_vout.h>
  31 #include <vlc_codec.h>
  32
  33 #include <vlc_osd.h>
  34 #include <vlc_filter.h>
  35 #include <vlc_charset.h>
  36 #include <vlc_stream.h>
  37 #include <vlc_xml.h>
  38 #include <errno.h>
  39 #include <string.h>
  40
  41 typedef struct
  42 {
  43     char *          psz_stylename; /* The name of the style, no comma's allowed */
  44     text_style_t    font_style;
  45     int             i_align;
  46     int             i_margin_h;
  47     int             i_margin_v;
  48 }  ssa_style_t;
  49
  50 /*****************************************************************************
  51  * decoder_sys_t : decoder descriptor
  52  *****************************************************************************/
  53 struct decoder_sys_t
  54 {
  55     vlc_bool_t          b_ass;                           /* The subs are ASS */
  56     int                 i_original_height;
  57     int                 i_original_width;
  58     int                 i_align;          /* Subtitles alignment on the vout */
  59     vlc_iconv_t         iconv_handle;            /* handle to iconv instance */
  60     vlc_bool_t          b_autodetect_utf8;
  61
  62     ssa_style_t         **pp_ssa_styles;
  63     int                 i_ssa_styles;
  64 };
  65
  66 /*****************************************************************************
  67  * Local prototypes
  68  *****************************************************************************/
  69 static int  OpenDecoder   ( vlc_object_t * );
  70 static void CloseDecoder  ( vlc_object_t * );
  71
  72 static subpicture_t *DecodeBlock   ( decoder_t *, block_t ** );
  73 static subpicture_t *ParseText     ( decoder_t *, block_t * );
  74 static void         ParseSSAHeader ( decoder_t * );
  75 static void         ParseUSFHeader ( decoder_t * );
  76 static void         ParseUSFHeaderTags( decoder_sys_t *, xml_reader_t * );
  77 static void         ParseSSAString ( decoder_t *, char *, subpicture_t * );
  78 static void         ParseUSFString ( decoder_t *, char *, subpicture_t * );
  79 static void         ParseColor     ( decoder_t *, char *, int *, int * );
  80 static void         StripTags      ( char * );
  81
  82 #define DEFAULT_NAME "Default"
  83 #define MAX_LINE 8192
  84
  85 /*****************************************************************************
  86  * Module descriptor.
  87  *****************************************************************************/
  88 static const char *ppsz_encodings[] = { DEFAULT_NAME, "ASCII", "UTF-8", "",
  89     "ISO-8859-1", "CP1252", "MacRoman", "MacIceland","ISO-8859-15", "",
  90     "ISO-8859-2", "CP1250", "MacCentralEurope", "MacCroatian", "MacRomania", "",
  91     "ISO-8859-5", "CP1251", "MacCyrillic", "MacUkraine", "KOI8-R", "KOI8-U", "KOI8-RU", "",
  92     "ISO-8859-6", "CP1256", "MacArabic", "",
  93     "ISO-8859-7", "CP1253", "MacGreek", "",
  94     "ISO-8859-8", "CP1255", "MacHebrew", "",
  95     "ISO-8859-9", "CP1254", "MacTurkish", "",
  96     "ISO-8859-13", "CP1257", "",
  97     "ISO-2022-JP", "ISO-2022-JP-1", "ISO-2022-JP-2", "EUC-JP", "SHIFT_JIS", "",
  98     "ISO-2022-CN", "ISO-2022-CN-EXT", "EUC-CN", "EUC-TW", "BIG5", "BIG5-HKSCS", "",
  99     "ISO-2022-KR", "EUC-KR", "",
 100     "MacThai", "KOI8-T", "",
 101     "ISO-8859-3", "ISO-8859-4", "ISO-8859-10", "ISO-8859-14", "ISO-8859-16", "",
 102     "CP850", "CP862", "CP866", "CP874", "CP932", "CP949", "CP950", "CP1133", "CP1258", "",
 103     "Macintosh", "",
 104     "UTF-7", "UTF-16", "UTF-16BE", "UTF-16LE", "UTF-32", "UTF-32BE", "UTF-32LE",
 105     "C99", "JAVA", "UCS-2", "UCS-2BE", "UCS-2LE", "UCS-4", "UCS-4BE", "UCS-4LE", "",
 106     "HZ", "GBK", "GB18030", "JOHAB", "ARMSCII-8",
 107     "Georgian-Academy", "Georgian-PS", "TIS-620", "MuleLao-1", "VISCII", "TCVN",
 108     "HPROMAN8", "NEXTSTEP" };
 109 /*
 110 SSA supports charset selection.
 111 The following known charsets are used:
 112
 113 0 = Ansi - Western European
 114 1 = default
 115 2 = symbol
 116 3 = invalid
 117 77 = Mac
 118 128 = Japanese (Shift JIS)
 119 129 = Hangul
 120 130 = Johab
 121 134 = GB2312 Simplified Chinese
 122 136 = Big5 Traditional Chinese
 123 161 = Greek
 124 162 = Turkish
 125 163 = Vietnamese
 126 177 = Hebrew
 127 178 = Arabic
 128 186 = Baltic
 129 204 = Russian (Cyrillic)
 130 222 = Thai
 131 238 = Eastern European
 132 254 = PC 437
 133 */
 134
 135 static int  pi_justification[] = { 0, 1, 2 };
 136 static const char *ppsz_justification_text[] = {N_("Center"),N_("Left"),N_("Right")};
 137
 138 #define ENCODING_TEXT N_("Subtitles text encoding")
 139 #define ENCODING_LONGTEXT N_("Set the encoding used in text subtitles")
 140 #define ALIGN_TEXT N_("Subtitles justification")
 141 #define ALIGN_LONGTEXT N_("Set the justification of subtitles")
 142 #define AUTODETECT_UTF8_TEXT N_("UTF-8 subtitles autodetection")
 143 #define AUTODETECT_UTF8_LONGTEXT N_("This enables automatic detection of " \
 144             "UTF-8 encoding within subtitles files.")
 145 #define FORMAT_TEXT N_("Formatted Subtitles")
 146 #define FORMAT_LONGTEXT N_("Some subtitle formats allow for text formatting. " \
 147  "VLC partly implements this, but you can choose to disable all formatting.")
 148
 149
 150 vlc_module_begin();
 151     set_shortname( _("Subtitles"));
 152     set_description( _("Text subtitles decoder") );
 153     set_capability( "decoder", 50 );
 154     set_callbacks( OpenDecoder, CloseDecoder );
 155     set_category( CAT_INPUT );
 156     set_subcategory( SUBCAT_INPUT_SCODEC );
 157
 158     add_integer( "subsdec-align", 0, NULL, ALIGN_TEXT, ALIGN_LONGTEXT,
 159                  VLC_FALSE );
 160         change_integer_list( pi_justification, ppsz_justification_text, 0 );
 161     add_string( "subsdec-encoding", DEFAULT_NAME, NULL,
 162                 ENCODING_TEXT, ENCODING_LONGTEXT, VLC_FALSE );
 163         change_string_list( ppsz_encodings, 0, 0 );
 164     add_bool( "subsdec-autodetect-utf8", VLC_TRUE, NULL,
 165               AUTODETECT_UTF8_TEXT, AUTODETECT_UTF8_LONGTEXT, VLC_FALSE );
 166     add_bool( "subsdec-formatted", VLC_TRUE, NULL, FORMAT_TEXT, FORMAT_LONGTEXT,
 167                  VLC_FALSE );
 168 vlc_module_end();
 169
 170 /*****************************************************************************
 171  * OpenDecoder: probe the decoder and return score
 172  *****************************************************************************
 173  * Tries to launch a decoder and return score so that the interface is able
 174  * to chose.
 175  *****************************************************************************/
 176 static int OpenDecoder( vlc_object_t *p_this )
 177 {
 178     decoder_t     *p_dec = (decoder_t*)p_this;
 179     decoder_sys_t *p_sys;
 180     vlc_value_t    val;
 181
 182     if( p_dec->fmt_in.i_codec != VLC_FOURCC('s','u','b','t') &&
 183         p_dec->fmt_in.i_codec != VLC_FOURCC('u','s','f',' ') &&
 184         p_dec->fmt_in.i_codec != VLC_FOURCC('s','s','a',' ') )
 185     {
 186         return VLC_EGENERIC;
 187     }
 188
 189     p_dec->pf_decode_sub = DecodeBlock;
 190
 191     /* Allocate the memory needed to store the decoder's structure */
 192     if( ( p_dec->p_sys = p_sys =
 193           (decoder_sys_t *)calloc(1, sizeof(decoder_sys_t)) ) == NULL )
 194     {
 195         msg_Err( p_dec, "out of memory" );
 196         return VLC_ENOMEM;
 197     }
 198
 199     /* init of p_sys */
 200     p_sys->i_align = 0;
 201     p_sys->iconv_handle = (vlc_iconv_t)-1;
 202     p_sys->b_autodetect_utf8 = VLC_FALSE;
 203     p_sys->b_ass = VLC_FALSE;
 204     p_sys->i_original_height = -1;
 205     p_sys->i_original_width = -1;
 206     p_sys->pp_ssa_styles = NULL;
 207     p_sys->i_ssa_styles = 0;
 208
 209     char *psz_charset = NULL;
 210     /* First try demux-specified encoding */
 211     if( p_dec->fmt_in.subs.psz_encoding && *p_dec->fmt_in.subs.psz_encoding )
 212     {
 213         psz_charset = strdup (p_dec->fmt_in.subs.psz_encoding);
 214         msg_Dbg (p_dec, "trying demuxer-specified character encoding: %s",
 215                  p_dec->fmt_in.subs.psz_encoding ?: "not specified");
 216     }
 217
 218     /* Second, try configured encoding */
 219     if (psz_charset == NULL)
 220     {
 221         psz_charset = var_CreateGetNonEmptyString (p_dec, "subsdec-encoding");
 222         if ((psz_charset != NULL) && !strcasecmp (psz_charset, DEFAULT_NAME))
 223         {
 224             free (psz_charset);
 225             psz_charset = NULL;
 226         }
 227
 228         msg_Dbg (p_dec, "trying configured character encoding: %s",
 229                  psz_charset ?: "not specified");
 230     }
 231
 232     /* Third, try "local" encoding with optional UTF-8 autodetection */
 233     if (psz_charset == NULL)
 234     {
 235         psz_charset = strdup (GetFallbackEncoding ());
 236         msg_Dbg (p_dec, "trying default character encoding: %s",
 237                  psz_charset ?: "not specified");
 238
 239         if (var_CreateGetBool (p_dec, "subsdec-autodetect-utf8"))
 240         {
 241             msg_Dbg (p_dec, "using automatic UTF-8 detection");
 242             p_sys->b_autodetect_utf8 = VLC_TRUE;
 243         }
 244     }
 245
 246     if (psz_charset == NULL)
 247     {
 248         psz_charset = strdup ("UTF-8");
 249         msg_Dbg (p_dec, "trying hard-coded character encoding: %s",
 250                  psz_charset ?: "error");
 251     }
 252
 253     if (psz_charset == NULL)
 254     {
 255         free (p_sys);
 256         return VLC_ENOMEM;
 257     }
 258
 259     if (strcasecmp (psz_charset, "UTF-8") && strcasecmp (psz_charset, "utf8"))
 260     {
 261         p_sys->iconv_handle = vlc_iconv_open ("UTF-8", psz_charset);
 262         if (p_sys->iconv_handle == (vlc_iconv_t)(-1))
 263             msg_Err (p_dec, "cannot convert from %s: %s", psz_charset,
 264                      strerror (errno));
 265     }
 266     free (psz_charset);
 267
 268     var_Create( p_dec, "subsdec-align", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
 269     var_Get( p_dec, "subsdec-align", &val );
 270     p_sys->i_align = val.i_int;
 271
 272     if( p_dec->fmt_in.i_codec == VLC_FOURCC('s','s','a',' ') && var_CreateGetBool( p_dec, "subsdec-formatted" ) )
 273     {
 274         if( p_dec->fmt_in.i_extra > 0 )
 275             ParseSSAHeader( p_dec );
 276     }
 277     else if( p_dec->fmt_in.i_codec == VLC_FOURCC('u','s','f',' ') && var_CreateGetBool( p_dec, "subsdec-formatted" ) )
 278     {
 279         if( p_dec->fmt_in.i_extra > 0 )
 280             ParseUSFHeader( p_dec );
 281     }
 282
 283     return VLC_SUCCESS;
 284 }
 285
 286 /****************************************************************************
 287  * DecodeBlock: the whole thing
 288  ****************************************************************************
 289  * This function must be fed with complete subtitles units.
 290  ****************************************************************************/
 291 static subpicture_t *DecodeBlock( decoder_t *p_dec, block_t **pp_block )
 292 {
 293     subpicture_t *p_spu = NULL;
 294
 295     if( !pp_block || *pp_block == NULL ) return NULL;
 296
 297     p_spu = ParseText( p_dec, *pp_block );
 298
 299     block_Release( *pp_block );
 300     *pp_block = NULL;
 301
 302     return p_spu;
 303 }
 304
 305 /*****************************************************************************
 306  * CloseDecoder: clean up the decoder
 307  *****************************************************************************/
 308 static void CloseDecoder( vlc_object_t *p_this )
 309 {
 310     decoder_t *p_dec = (decoder_t *)p_this;
 311     decoder_sys_t *p_sys = p_dec->p_sys;
 312
 313     if( p_sys->iconv_handle != (vlc_iconv_t)-1 )
 314     {
 315         vlc_iconv_close( p_sys->iconv_handle );
 316     }
 317
 318     if( p_sys->pp_ssa_styles )
 319     {
 320         int i;
 321         for( i = 0; i < p_sys->i_ssa_styles; i++ )
 322         {
 323             if( p_sys->pp_ssa_styles[i]->psz_stylename ) free( p_sys->pp_ssa_styles[i]->psz_stylename );
 324             p_sys->pp_ssa_styles[i]->psz_stylename = NULL;
 325             if( p_sys->pp_ssa_styles[i]->font_style.psz_fontname ) free( p_sys->pp_ssa_styles[i]->font_style.psz_fontname );
 326             p_sys->pp_ssa_styles[i]->font_style.psz_fontname = NULL;
 327             if( p_sys->pp_ssa_styles[i] ) free( p_sys->pp_ssa_styles[i] ); p_sys->pp_ssa_styles[i] = NULL;
 328         }
 329         free( p_sys->pp_ssa_styles ); p_sys->pp_ssa_styles = NULL;
 330     }
 331
 332     free( p_sys );
 333 }
 334
 335 /*****************************************************************************
 336  * ParseText: parse an text subtitle packet and send it to the video output
 337  *****************************************************************************/
 338 static subpicture_t *ParseText( decoder_t *p_dec, block_t *p_block )
 339 {
 340     decoder_sys_t *p_sys = p_dec->p_sys;
 341     subpicture_t *p_spu = NULL;
 342     char *psz_subtitle = NULL;
 343     video_format_t fmt;
 344
 345     /* We cannot display a subpicture with no date */
 346     if( p_block->i_pts == 0 )
 347     {
 348         msg_Warn( p_dec, "subtitle without a date" );
 349         return NULL;
 350     }
 351
 352     /* Check validity of packet data */
 353     /* An "empty" line containing only \0 can be used to force
 354        and ephemer picture from the screen */
 355     if( p_block->i_buffer < 1 )
 356     {
 357         msg_Warn( p_dec, "no subtitle data" );
 358         return NULL;
 359     }
 360
 361     /* Should be resiliant against bad subtitles */
 362     psz_subtitle = strndup( (const char *)p_block->p_buffer,
 363                             p_block->i_buffer );
 364     if( psz_subtitle == NULL )
 365         return NULL;
 366
 367     if( p_sys->iconv_handle == (vlc_iconv_t)-1 )
 368     {
 369         if (EnsureUTF8( psz_subtitle ) == NULL)
 370         {
 371             msg_Err( p_dec, _("failed to convert subtitle encoding.\n"
 372                      "Try manually setting a character-encoding "
 373                      "before you open the file.") );
 374         }
 375     }
 376     else
 377     {
 378
 379         if( p_sys->b_autodetect_utf8 )
 380         {
 381             if( IsUTF8( psz_subtitle ) == NULL )
 382             {
 383                 msg_Dbg( p_dec, "invalid UTF-8 sequence: "
 384                          "disabling UTF-8 subtitles autodetection" );
 385                 p_sys->b_autodetect_utf8 = VLC_FALSE;
 386             }
 387         }
 388
 389         if( !p_sys->b_autodetect_utf8 )
 390         {
 391             size_t inbytes_left = strlen( psz_subtitle );
 392             size_t outbytes_left = 6 * inbytes_left;
 393             char *psz_new_subtitle = malloc( outbytes_left + 1 );
 394             char *psz_convert_buffer_out = psz_new_subtitle;
 395             const char *psz_convert_buffer_in = psz_subtitle;
 396
 397             size_t ret = vlc_iconv( p_sys->iconv_handle,
 398                                     &psz_convert_buffer_in, &inbytes_left,
 399                                     &psz_convert_buffer_out, &outbytes_left );
 400
 401             *psz_convert_buffer_out++ = '\0';
 402             free( psz_subtitle );
 403
 404             if( ( ret == (size_t)(-1) ) || inbytes_left )
 405             {
 406                 free( psz_new_subtitle );
 407                 msg_Err( p_dec, _("failed to convert subtitle encoding.\n"
 408                         "Try manually setting a character-encoding "
 409                                 "before you open the file.") );
 410                 return NULL;
 411             }
 412
 413             psz_subtitle = realloc( psz_new_subtitle,
 414                                     psz_convert_buffer_out - psz_new_subtitle );
 415         }
 416     }
 417
 418     /* Create the subpicture unit */
 419     p_spu = p_dec->pf_spu_buffer_new( p_dec );
 420     if( !p_spu )
 421     {
 422         msg_Warn( p_dec, "can't get spu buffer" );
 423         if( psz_subtitle ) free( psz_subtitle );
 424         return NULL;
 425     }
 426
 427     p_spu->b_pausable = VLC_TRUE;
 428
 429     /* Create a new subpicture region */
 430     memset( &fmt, 0, sizeof(video_format_t) );
 431     fmt.i_chroma = VLC_FOURCC('T','E','X','T');
 432     fmt.i_aspect = 0;
 433     fmt.i_width = fmt.i_height = 0;
 434     fmt.i_x_offset = fmt.i_y_offset = 0;
 435     p_spu->p_region = p_spu->pf_create_region( VLC_OBJECT(p_dec), &fmt );
 436     if( !p_spu->p_region )
 437     {
 438         msg_Err( p_dec, "cannot allocate SPU region" );
 439         if( psz_subtitle ) free( psz_subtitle );
 440         p_dec->pf_spu_buffer_del( p_dec, p_spu );
 441         return NULL;
 442     }
 443
 444     /* Decode and format the subpicture unit */
 445     if( p_dec->fmt_in.i_codec != VLC_FOURCC('s','s','a',' ') &&
 446         p_dec->fmt_in.i_codec != VLC_FOURCC('u','s','f',' ') )
 447     {
 448         /* Normal text subs, easy markup */
 449         p_spu->i_flags = SUBPICTURE_ALIGN_BOTTOM | p_sys->i_align;
 450         p_spu->i_x = p_sys->i_align ? 20 : 0;
 451         p_spu->i_y = 10;
 452
 453         /* Remove formatting from string */
 454         StripTags( psz_subtitle );
 455
 456         p_spu->p_region->psz_text = psz_subtitle;
 457         p_spu->p_region->psz_html = NULL;
 458         p_spu->i_start = p_block->i_pts;
 459         p_spu->i_stop = p_block->i_pts + p_block->i_length;
 460         p_spu->b_ephemer = (p_block->i_length == 0);
 461         p_spu->b_absolute = VLC_FALSE;
 462     }
 463     else
 464     {
 465         /* Decode SSA/USF strings */
 466         if( p_dec->fmt_in.i_codec == VLC_FOURCC('s','s','a',' ') )
 467             ParseSSAString( p_dec, psz_subtitle, p_spu );
 468         else
 469             ParseUSFString( p_dec, psz_subtitle, p_spu );
 470
 471         p_spu->i_start = p_block->i_pts;
 472         p_spu->i_stop = p_block->i_pts + p_block->i_length;
 473         p_spu->b_ephemer = (p_block->i_length == 0);
 474         p_spu->b_absolute = VLC_FALSE;
 475         p_spu->i_original_picture_width = p_sys->i_original_width;
 476         p_spu->i_original_picture_height = p_sys->i_original_height;
 477         if( psz_subtitle ) free( psz_subtitle );
 478     }
 479     return p_spu;
 480 }
 481
 482 static void ParseUSFString( decoder_t *p_dec, char *psz_subtitle, subpicture_t *p_spu_in )
 483 {
 484     decoder_sys_t   *p_sys = p_dec->p_sys;
 485     subpicture_t    *p_spu = p_spu_in;
 486     char            *psz_text;
 487     char            *psz_text_start;
 488     ssa_style_t     *p_style = NULL;
 489     int              i;
 490
 491     /* Create a text only copy of the subtitle (for legacy implementations) and copy
 492      * the rich html version across as is - for parsing by a rendering engine capable
 493      * of understanding it.
 494      */
 495     p_spu->p_region->psz_text = NULL;
 496     p_spu->p_region->psz_html = strdup( psz_subtitle );
 497
 498     for( i = 0; i < p_sys->i_ssa_styles; i++ )
 499     {
 500         if( !strcasecmp( p_sys->pp_ssa_styles[i]->psz_stylename, "Default" ) )
 501             p_style = p_sys->pp_ssa_styles[i];
 502     }
 503
 504     /* The StripTags() function doesn't handle HTML tags that have attribute/values with
 505      * them, or properly translate <br/> sequences into newlines, or handle &' sequences
 506      * so do it here ourselves.
 507      */
 508     psz_text_start = malloc( strlen( psz_subtitle ));
 509
 510     psz_text = psz_text_start;
 511     while( *psz_subtitle )
 512     {
 513         if( *psz_subtitle == '<' )
 514         {
 515             if( !strncasecmp( psz_subtitle, "<br/>", 5 ))
 516                 *psz_text++ = '\n';
 517             else if( strncasecmp( psz_subtitle, "<text ", 6 ))
 518             {
 519                 char *psz_style = strcasestr( psz_subtitle, "style=\"" );
 520
 521                 if( psz_style && ( psz_style < strchr( psz_subtitle, '>' ) ))
 522                 {
 523                     int i_len;
 524
 525                     psz_style += strspn( psz_style, "\"" ) + 1;
 526                     i_len = strspn( psz_style, "\"" );
 527
 528                     psz_style[ i_len ] = '\0';
 529
 530                     for( i = 0; i < p_sys->i_ssa_styles; i++ )
 531                     {
 532                         if( !strcmp( p_sys->pp_ssa_styles[i]->psz_stylename, psz_style ) )
 533                             p_style = p_sys->pp_ssa_styles[i];
 534                     }
 535
 536                     psz_style[ i_len ] = '\"';
 537                 }
 538             }
 539
 540             psz_subtitle += strcspn( psz_subtitle, ">" );
 541         }
 542         else if( *psz_subtitle == '&' )
 543         {
 544             if( !strncasecmp( psz_subtitle, "&lt;", 4 ))
 545                 *psz_text++ = '<';
 546             else if( !strncasecmp( psz_subtitle, "&gt;", 4 ))
 547                 *psz_text++ = '>';
 548             else if( !strncasecmp( psz_subtitle, "&amp;", 5 ))
 549                 *psz_text++ = '&';
 550
 551             psz_subtitle += strcspn( psz_subtitle, ";" );
 552         }
 553         else if( ( *psz_subtitle == '\t' ) ||
 554                  ( *psz_subtitle == '\r' ) ||
 555                  ( *psz_subtitle == '\n' ) ||
 556                  ( *psz_subtitle == ' ' ) )
 557         {
 558             if( ( psz_text_start < psz_text ) &&
 559                 ( *(psz_text-1) != ' ' ) )
 560             {
 561                 *psz_text++ = ' ';
 562             }
 563         }
 564         else
 565             *psz_text++ = *psz_subtitle;
 566
 567         psz_subtitle++;
 568     }
 569     *psz_text = '\0';
 570     p_spu->p_region->psz_text = strdup( psz_text_start );
 571     free( psz_text_start );
 572
 573     if( p_style == NULL )
 574     {
 575         p_spu->i_flags = SUBPICTURE_ALIGN_BOTTOM | p_sys->i_align;
 576         p_spu->i_x = p_sys->i_align ? 20 : 0;
 577         p_spu->i_y = 10;
 578     }
 579     else
 580     {
 581         msg_Dbg( p_dec, "style is: %s", p_style->psz_stylename);
 582         p_spu->p_region->p_style = &p_style->font_style;
 583         p_spu->i_flags = p_style->i_align;
 584     }
 585 }
 586
 587 static void ParseSSAString( decoder_t *p_dec, char *psz_subtitle, subpicture_t *p_spu_in )
 588 {
 589     /* We expect MKV formatted SSA:
 590      * ReadOrder, Layer, Style, CharacterName, MarginL, MarginR,
 591      * MarginV, Effect, Text */
 592     decoder_sys_t   *p_sys = p_dec->p_sys;
 593     subpicture_t    *p_spu = p_spu_in;
 594     ssa_style_t     *p_style = NULL;
 595     char            *psz_new_subtitle = NULL;
 596     char            *psz_buffer_sub = NULL;
 597     char            *psz_style = NULL;
 598     char            *psz_style_start = NULL;
 599     char            *psz_style_end = NULL;
 600     int             i_text = 0, i_comma = 0, i_strlen = 0, i;
 601     int             i_margin_l = 0, i_margin_r = 0, i_margin_v = 0;
 602
 603     psz_buffer_sub = psz_subtitle;
 604
 605     p_spu->p_region->psz_html = NULL;
 606
 607     i_comma = 0;
 608     while( i_comma < 8 && *psz_buffer_sub != '\0' )
 609     {
 610         if( *psz_buffer_sub == ',' )
 611         {
 612             i_comma++;
 613             if( i_comma == 2 ) psz_style_start = &psz_buffer_sub[1];
 614             if( i_comma == 3 ) psz_style_end = &psz_buffer_sub[0];
 615             if( i_comma == 4 ) i_margin_l = (int)strtol( psz_buffer_sub+1, NULL, 10 );
 616             if( i_comma == 5 ) i_margin_r = (int)strtol( psz_buffer_sub+1, NULL, 10 );
 617             if( i_comma == 6 ) i_margin_v = (int)strtol( psz_buffer_sub+1, NULL, 10 );
 618         }
 619         psz_buffer_sub++;
 620     }
 621
 622     if( *psz_buffer_sub == '\0' && i_comma == 8 )
 623     {
 624         msg_Dbg( p_dec, "couldn't find all fields in this SSA line" );
 625         return;
 626     }
 627
 628     psz_new_subtitle = malloc( strlen( psz_buffer_sub ) + 1);
 629     i_text = 0;
 630     while( psz_buffer_sub[0] != '\0' )
 631     {
 632         if( psz_buffer_sub[0] == '\\' && psz_buffer_sub[1] == 'n' )
 633         {
 634             psz_new_subtitle[i_text] = ' ';
 635             i_text++;
 636             psz_buffer_sub += 2;
 637         }
 638         else if( psz_buffer_sub[0] == '\\' && psz_buffer_sub[1] == 'N' )
 639         {
 640             psz_new_subtitle[i_text] = '\n';
 641             i_text++;
 642             psz_buffer_sub += 2;
 643         }
 644         else if( psz_buffer_sub[0] == '{' &&
 645                  psz_buffer_sub[1] == '\\' )
 646         {
 647             /* SSA control code */
 648             while( psz_buffer_sub[0] != '\0' &&
 649                    psz_buffer_sub[0] != '}' )
 650             {
 651                 psz_buffer_sub++;
 652             }
 653             psz_buffer_sub++;
 654         }
 655         else
 656         {
 657             psz_new_subtitle[i_text] = psz_buffer_sub[0];
 658             i_text++;
 659             psz_buffer_sub++;
 660         }
 661     }
 662     psz_new_subtitle[i_text] = '\0';
 663
 664     i_strlen = __MAX( psz_style_end - psz_style_start, 0);
 665     psz_style = (char *)malloc( i_strlen + 1);
 666     psz_style = memcpy( psz_style, psz_style_start, i_strlen );
 667     psz_style[i_strlen] = '\0';
 668
 669     for( i = 0; i < p_sys->i_ssa_styles; i++ )
 670     {
 671         if( !strcmp( p_sys->pp_ssa_styles[i]->psz_stylename, psz_style ) )
 672             p_style = p_sys->pp_ssa_styles[i];
 673     }
 674     if( psz_style ) free( psz_style );
 675
 676     p_spu->p_region->psz_text = psz_new_subtitle;
 677     if( p_style == NULL )
 678     {
 679         p_spu->i_flags = SUBPICTURE_ALIGN_BOTTOM | p_sys->i_align;
 680         p_spu->i_x = p_sys->i_align ? 20 : 0;
 681         p_spu->i_y = 10;
 682     }
 683     else
 684     {
 685         msg_Dbg( p_dec, "style is: %s", p_style->psz_stylename);
 686         p_spu->p_region->p_style = &p_style->font_style;
 687         p_spu->i_flags = p_style->i_align;
 688         if( p_style->i_align & SUBPICTURE_ALIGN_LEFT )
 689         {
 690             p_spu->i_x = (i_margin_l) ? i_margin_l : p_style->i_margin_h;
 691         }
 692         else if( p_style->i_align & SUBPICTURE_ALIGN_RIGHT )
 693         {
 694             p_spu->i_x = (i_margin_r) ? i_margin_r : p_style->i_margin_h;
 695         }
 696         p_spu->i_y = (i_margin_v) ? i_margin_v : p_style->i_margin_v;
 697     }
 698 }
 699
 700 static char* GotoNextLine( char *psz_text )
 701 {
 702     char *p_newline = psz_text;
 703
 704     while( p_newline[0] != '\0' )
 705     {
 706         if( p_newline[0] == '\n' || p_newline[0] == '\r' )
 707         {
 708             p_newline++;
 709             while( p_newline[0] == '\n' || p_newline[0] == '\r' )
 710                 p_newline++;
 711             break;
 712         }
 713         else p_newline++;
 714     }
 715     return p_newline;
 716 }
 717
 718 /*****************************************************************************
 719  * ParseColor: SSA stores color in BBGGRR, in ASS it uses AABBGGRR
 720  * The string value in the string can be a pure integer, or hexadecimal &HBBGGRR
 721  *****************************************************************************/
 722 static void ParseColor( decoder_t *p_dec, char *psz_color, int *pi_color, int *pi_alpha )
 723 {
 724     int i_color = 0;
 725     if( !strncasecmp( psz_color, "&H", 2 ) )
 726     {
 727         /* textual HEX representation */
 728         i_color = (int) strtol( psz_color+2, NULL, 16 );
 729     }
 730     else i_color = (int) strtol( psz_color, NULL, 0 );
 731
 732     *pi_color = 0;
 733     *pi_color |= ( ( i_color & 0x000000FF ) << 16 ); /* Red */
 734     *pi_color |= ( ( i_color & 0x0000FF00 ) );       /* Green */
 735     *pi_color |= ( ( i_color & 0x00FF0000 ) >> 16 ); /* Blue */
 736
 737     if( pi_alpha != NULL )
 738         *pi_alpha = ( i_color & 0xFF000000 ) >> 24;
 739 }
 740
 741 /*****************************************************************************
 742  * ParseUSFHeader: Retrieve global formatting information etc
 743  *****************************************************************************/
 744 static void ParseUSFHeader( decoder_t *p_dec )
 745 {
 746     decoder_sys_t *p_sys = p_dec->p_sys;
 747     stream_t      *p_sub = NULL;
 748     xml_t         *p_xml = NULL;
 749     xml_reader_t  *p_xml_reader = NULL;
 750
 751     p_sub = stream_MemoryNew( VLC_OBJECT(p_dec),
 752                               p_dec->fmt_in.p_extra,
 753                               p_dec->fmt_in.i_extra,
 754                               VLC_FALSE );
 755     if( p_sub )
 756     {
 757         p_xml = xml_Create( p_dec );
 758         if( p_xml )
 759         {
 760             p_xml_reader = xml_ReaderCreate( p_xml, p_sub );
 761             if( p_xml_reader )
 762             {
 763                 /* Look for Root Node */
 764                 if( xml_ReaderRead( p_xml_reader ) == 1 )
 765                 {
 766                     char *psz_node = xml_ReaderName( p_xml_reader );
 767
 768                     if( !strcasecmp( "usfsubtitles", psz_node ) )
 769                         ParseUSFHeaderTags( p_sys, p_xml_reader );
 770
 771                     free( psz_node );
 772                 }
 773
 774                 xml_ReaderDelete( p_xml, p_xml_reader );
 775             }
 776             xml_Delete( p_xml );
 777         }
 778         stream_Delete( p_sub );
 779     }
 780 }
 781
 782 static void ParseUSFHeaderTags( decoder_sys_t *p_sys, xml_reader_t *p_xml_reader )
 783 {
 784     char *psz_node;
 785     ssa_style_t *p_style = NULL;
 786     int i_style_level = 0;
 787     int i_metadata_level = 0;
 788
 789     while ( xml_ReaderRead( p_xml_reader ) == 1 )
 790     {
 791         switch ( xml_ReaderNodeType( p_xml_reader ) )
 792         {
 793             case XML_READER_TEXT:
 794             case XML_READER_NONE:
 795                 break;
 796             case XML_READER_ENDELEM:
 797                 psz_node = xml_ReaderName( p_xml_reader );
 798
 799                 if( psz_node )
 800                 {
 801                     switch (i_style_level)
 802                     {
 803                         case 0:
 804                             if( !strcasecmp( "metadata", psz_node ) && (i_metadata_level == 1) )
 805                             {
 806                                 i_metadata_level--;
 807                             }
 808                             break;
 809                         case 1:
 810                             if( !strcasecmp( "styles", psz_node ) )
 811                             {
 812                                 i_style_level--;
 813                             }
 814                             break;
 815                         case 2:
 816                             if( !strcasecmp( "style", psz_node ) )
 817                             {
 818                                 p_style->font_style.i_text_align = p_style->i_align;
 819
 820                                 TAB_APPEND( p_sys->i_ssa_styles, p_sys->pp_ssa_styles, p_style );
 821
 822                                 p_style = NULL;
 823                                 i_style_level--;
 824                             }
 825                             break;
 826                     }
 827
 828                     free( psz_node );
 829                 }
 830                 break;
 831             case XML_READER_STARTELEM:
 832                 psz_node = xml_ReaderName( p_xml_reader );
 833
 834                 if( psz_node )
 835                 {
 836                     if( !strcasecmp( "metadata", psz_node ) && (i_style_level == 0) )
 837                     {
 838                         i_metadata_level++;
 839                     }
 840                     else if( !strcasecmp( "resolution", psz_node ) && (i_metadata_level == 1) )
 841                     {
 842                         while ( xml_ReaderNextAttr( p_xml_reader ) == VLC_SUCCESS )
 843                         {
 844                             char *psz_name = xml_ReaderName ( p_xml_reader );
 845                             char *psz_value = xml_ReaderValue ( p_xml_reader );
 846
 847                             if( psz_name && psz_value )
 848                             {
 849                                 if( !strcasecmp( "x", psz_name ) )
 850                                     p_sys->i_original_width = atoi( psz_value );
 851                                 else if( !strcasecmp( "y", psz_name ) )
 852                                     p_sys->i_original_height = atoi( psz_value );
 853                             }
 854                             if( psz_name )  free( psz_name );
 855                             if( psz_value ) free( psz_value );
 856                         }
 857                     }
 858                     else if( !strcasecmp( "styles", psz_node ) && (i_style_level == 0) )
 859                     {
 860                         i_style_level++;
 861                     }
 862                     else if( !strcasecmp( "style", psz_node ) && (i_style_level == 1) )
 863                     {
 864                         i_style_level++;
 865
 866                         p_style = calloc( 1, sizeof(ssa_style_t) );
 867
 868                         while ( xml_ReaderNextAttr( p_xml_reader ) == VLC_SUCCESS )
 869                         {
 870                             char *psz_name = xml_ReaderName ( p_xml_reader );
 871                             char *psz_value = xml_ReaderValue ( p_xml_reader );
 872
 873                             if( psz_name && psz_value )
 874                             {
 875                                 if( !strcasecmp( "name", psz_name ) )
 876                                     p_style->psz_stylename = strdup( psz_value);
 877                             }
 878                             if( psz_name )  free( psz_name );
 879                             if( psz_value ) free( psz_value );
 880                         }
 881                     }
 882                     else if( !strcasecmp( "fontstyle", psz_node ) && (i_style_level == 2) )
 883                     {
 884                         while ( xml_ReaderNextAttr( p_xml_reader ) == VLC_SUCCESS )
 885                         {
 886                             char *psz_name = xml_ReaderName ( p_xml_reader );
 887                             char *psz_value = xml_ReaderValue ( p_xml_reader );
 888
 889                             if( psz_name && psz_value )
 890                             {
 891                                 if( !strcasecmp( "face", psz_name ) )
 892                                     p_style->font_style.psz_fontname = strdup( psz_value);
 893                                 else if( !strcasecmp( "size", psz_name ) )
 894                                     p_style->font_style.i_font_size = atoi( psz_value);
 895                                 else if( !strcasecmp( "italic", psz_name ) )
 896                                 {
 897                                     if( !strcasecmp( "yes", psz_value ))
 898                                         p_style->font_style.i_style_flags |= STYLE_ITALIC;
 899                                 }
 900                                 else if( !strcasecmp( "weight", psz_name ) )
 901                                 {
 902                                     if( !strcasecmp( "bold", psz_value ))
 903                                         p_style->font_style.i_style_flags |= STYLE_BOLD;
 904                                 }
 905                                 else if( !strcasecmp( "underline", psz_name ) )
 906                                 {
 907                                     if( !strcasecmp( "yes", psz_value ))
 908                                         p_style->font_style.i_style_flags |= STYLE_UNDERLINE;
 909                                 }
 910                                 else if( !strcasecmp( "color", psz_name ) )
 911                                 {
 912                                     if( *psz_value == '#' )
 913                                     {
 914                                         unsigned long col = strtol(psz_value+1, NULL, 16);
 915                                         p_style->font_style.i_font_color = (col & 0x00ffffff);
 916                                         // From DTD: <!-- alpha range = 0..100 -->
 917                                         p_style->font_style.i_font_alpha = ((col >> 24) & 0xff) * 255 / 100;
 918                                     }
 919                                 }
 920                                 else if( !strcasecmp( "outline-color", psz_name ) )
 921                                 {
 922                                     if( *psz_value == '#' )
 923                                     {
 924                                         unsigned long col = strtol(psz_value+1, NULL, 16);
 925                                         p_style->font_style.i_outline_color = (col & 0x00ffffff);
 926                                         // From DTD: <!-- alpha range = 0..100 -->
 927                                         p_style->font_style.i_outline_alpha = ((col >> 24) & 0xff) * 255 / 100;
 928                                     }
 929                                 }
 930                                 else if( !strcasecmp( "shadow-color", psz_name ) )
 931                                 {
 932                                     if( *psz_value == '#' )
 933                                     {
 934                                         unsigned long col = strtol(psz_value+1, NULL, 16);
 935                                         p_style->font_style.i_shadow_color = (col & 0x00ffffff);
 936                                         // From DTD: <!-- alpha range = 0..100 -->
 937                                         p_style->font_style.i_shadow_alpha = ((col >> 24) & 0xff) * 255 / 100;
 938                                     }
 939                                 }
 940                             }
 941                             if( psz_name )  free( psz_name );
 942                             if( psz_value ) free( psz_value );
 943                         }
 944                     }
 945                     else if( !strcasecmp( "position", psz_node ) && (i_style_level == 2) )
 946                     {
 947                         while ( xml_ReaderNextAttr( p_xml_reader ) == VLC_SUCCESS )
 948                         {
 949                             char *psz_name = xml_ReaderName ( p_xml_reader );
 950                             char *psz_value = xml_ReaderValue ( p_xml_reader );
 951
 952                             if( psz_name && psz_value )
 953                             {
 954                                 if( !strcasecmp( "alignment", psz_name ) )
 955                                 {
 956                                     if( !strcasecmp( "TopLeft", psz_value ) )
 957                                     {
 958                                         p_style->i_align |= SUBPICTURE_ALIGN_TOP;
 959                                         p_style->i_align |= SUBPICTURE_ALIGN_LEFT;
 960                                     }
 961                                     else if( !strcasecmp( "TopCenter", psz_value ) )
 962                                     {
 963                                         p_style->i_align |= SUBPICTURE_ALIGN_TOP;
 964                                     }
 965                                     else if( !strcasecmp( "TopRight", psz_value ) )
 966                                     {
 967                                         p_style->i_align |= SUBPICTURE_ALIGN_TOP;
 968                                         p_style->i_align |= SUBPICTURE_ALIGN_RIGHT;
 969                                     }
 970                                     else if( !strcasecmp( "MiddleLeft", psz_value ) )
 971                                     {
 972                                         p_style->i_align |= SUBPICTURE_ALIGN_LEFT;
 973                                     }
 974                                     else if( !strcasecmp( "MiddleCenter", psz_value ) )
 975                                     {
 976                                         p_style->i_align = 0;
 977                                     }
 978                                     else if( !strcasecmp( "MiddleRight", psz_value ) )
 979                                     {
 980                                         p_style->i_align |= SUBPICTURE_ALIGN_RIGHT;
 981                                     }
 982                                     else if( !strcasecmp( "BottomLeft", psz_value ) )
 983                                     {
 984                                         p_style->i_align |= SUBPICTURE_ALIGN_BOTTOM;
 985                                         p_style->i_align |= SUBPICTURE_ALIGN_LEFT;
 986                                     }
 987                                     else if( !strcasecmp( "BottomCenter", psz_value ) )
 988                                     {
 989                                         p_style->i_align |= SUBPICTURE_ALIGN_BOTTOM;
 990                                     }
 991                                     else if( !strcasecmp( "BottomRight", psz_value ) )
 992                                     {
 993                                         p_style->i_align |= SUBPICTURE_ALIGN_BOTTOM;
 994                                         p_style->i_align |= SUBPICTURE_ALIGN_RIGHT;
 995                                     }
 996                                 }
 997                             }
 998                             if( psz_name )  free( psz_name );
 999                             if( psz_value ) free( psz_value );
1000                         }
1001                     }
1002
1003                     free( psz_node );
1004                 }
1005                 break;
1006         }
1007     }
1008     if( p_style ) free( p_style );
1009 }
1010 /*****************************************************************************
1011  * ParseSSAHeader: Retrieve global formatting information etc
1012  *****************************************************************************/
1013 static void ParseSSAHeader( decoder_t *p_dec )
1014 {
1015     decoder_sys_t *p_sys = p_dec->p_sys;
1016     char *psz_parser = NULL;
1017     char *psz_header = malloc( p_dec->fmt_in.i_extra+1 );
1018     int i_section_type = 1;
1019
1020     memcpy( psz_header, p_dec->fmt_in.p_extra, p_dec->fmt_in.i_extra );
1021     psz_header[ p_dec->fmt_in.i_extra] = '\0';
1022
1023     /* Handle [Script Info] section */
1024     psz_parser = strcasestr( psz_header, "[Script Info]" );
1025     if( psz_parser == NULL ) goto eof;
1026
1027     psz_parser = GotoNextLine( psz_parser );
1028
1029     while( psz_parser[0] != '\0' )
1030     {
1031         int temp;
1032         char buffer_text[MAX_LINE + 1];
1033
1034         if( psz_parser[0] == '!' || psz_parser[0] == ';' ) /* comment */;
1035         else if( sscanf( psz_parser, "PlayResX: %d", &temp ) == 1 )
1036             p_sys->i_original_width = ( temp > 0 ) ? temp : -1;
1037         else if( sscanf( psz_parser, "PlayResY: %d", &temp ) == 1 )
1038             p_sys->i_original_height = ( temp > 0 ) ? temp : -1;
1039         else if( sscanf( psz_parser, "Script Type: %8192s", buffer_text ) == 1 )
1040         {
1041             if( !strcasecmp( buffer_text, "V4.00+" ) ) p_sys->b_ass = VLC_TRUE;
1042         }
1043         else if( !strncasecmp( psz_parser, "[V4 Styles]", 11 ) )
1044             i_section_type = 1;
1045         else if( !strncasecmp( psz_parser, "[V4+ Styles]", 12) )
1046         {
1047             i_section_type = 2;
1048             p_sys->b_ass = VLC_TRUE;
1049         }
1050         else if( !strncasecmp( psz_parser, "[Events]", 8 ) )
1051             i_section_type = 4;
1052         else if( !strncasecmp( psz_parser, "Style:", 6 ) )
1053         {
1054             int i_font_size, i_bold, i_italic, i_border, i_outline, i_shadow, i_underline,
1055                 i_strikeout, i_scale_x, i_scale_y, i_spacing, i_align, i_margin_l, i_margin_r, i_margin_v;
1056
1057             char psz_temp_stylename[MAX_LINE+1];
1058             char psz_temp_fontname[MAX_LINE+1];
1059             char psz_temp_color1[MAX_LINE+1];
1060             char psz_temp_color2[MAX_LINE+1];
1061             char psz_temp_color3[MAX_LINE+1];
1062             char psz_temp_color4[MAX_LINE+1];
1063
1064             if( i_section_type == 1 ) /* V4 */
1065             {
1066                 if( sscanf( psz_parser, "Style: %8192[^,],%8192[^,],%d,%8192[^,],%8192[^,],%8192[^,],%8192[^,],%d,%d,%d,%d,%d,%d,%d,%d,%d%*[^\r\n]",
1067                     psz_temp_stylename, psz_temp_fontname, &i_font_size,
1068                     psz_temp_color1, psz_temp_color2, psz_temp_color3, psz_temp_color4, &i_bold, &i_italic,
1069                     &i_border, &i_outline, &i_shadow, &i_align, &i_margin_l, &i_margin_r, &i_margin_v ) == 16 )
1070                 {
1071                     ssa_style_t *p_style = malloc( sizeof(ssa_style_t) );
1072
1073                     p_style->psz_stylename = strdup( psz_temp_stylename );
1074                     p_style->font_style.psz_fontname = strdup( psz_temp_fontname );
1075                     p_style->font_style.i_font_size = i_font_size;
1076
1077                     ParseColor( p_dec, psz_temp_color1, &p_style->font_style.i_font_color, NULL );
1078                     ParseColor( p_dec, psz_temp_color4, &p_style->font_style.i_shadow_color, NULL );
1079                     p_style->font_style.i_outline_color = p_style->font_style.i_shadow_color;
1080                     p_style->font_style.i_font_alpha = p_style->font_style.i_outline_alpha = p_style->font_style.i_shadow_alpha = 0x00;
1081                     p_style->font_style.i_style_flags = 0;
1082                     if( i_bold ) p_style->font_style.i_style_flags |= STYLE_BOLD;
1083                     if( i_italic ) p_style->font_style.i_style_flags |= STYLE_ITALIC;
1084
1085                     if( i_border == 1 ) p_style->font_style.i_style_flags |= (STYLE_ITALIC | STYLE_OUTLINE);
1086                     else if( i_border == 3 )
1087                     {
1088                         p_style->font_style.i_style_flags |= STYLE_BACKGROUND;
1089                         p_style->font_style.i_background_color = p_style->font_style.i_shadow_color;
1090                         p_style->font_style.i_background_alpha = p_style->font_style.i_shadow_alpha;
1091                     }
1092                     p_style->font_style.i_shadow_width = i_shadow;
1093                     p_style->font_style.i_outline_width = i_outline;
1094
1095                     p_style->i_align = 0;
1096                     if( i_align == 1 || i_align == 5 || i_align == 9 ) p_style->i_align |= SUBPICTURE_ALIGN_LEFT;
1097                     if( i_align == 3 || i_align == 7 || i_align == 11 ) p_style->i_align |= SUBPICTURE_ALIGN_RIGHT;
1098                     if( i_align < 4 ) p_style->i_align |= SUBPICTURE_ALIGN_BOTTOM;
1099                     else if( i_align < 8 ) p_style->i_align |= SUBPICTURE_ALIGN_TOP;
1100
1101                     p_style->i_margin_h = ( p_style->i_align & SUBPICTURE_ALIGN_RIGHT ) ? i_margin_r : i_margin_l;
1102                     p_style->i_margin_v = i_margin_v;
1103
1104                     TAB_APPEND( p_sys->i_ssa_styles, p_sys->pp_ssa_styles, p_style );
1105                 }
1106                 else msg_Warn( p_dec, "SSA v4 styleline parsing failed" );
1107             }
1108             else if( i_section_type == 2 ) /* V4+ */
1109             {
1110                 /* Format: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, OutlineColour, BackColour,
1111                    Bold, Italic, Underline, StrikeOut, ScaleX, ScaleY, Spacing, Angle, BorderStyle, Outline,
1112                    Shadow, Alignment, MarginL, MarginR, MarginV, Encoding
1113                 */
1114                 if( sscanf( psz_parser, "Style: %8192[^,],%8192[^,],%d,%8192[^,],%8192[^,],%8192[^,],%8192[^,],%d,%d,%d,%d,%d,%d,%d,%*f,%d,%d,%d,%d,%d,%d,%d%*[^\r\n]",
1115                     psz_temp_stylename, psz_temp_fontname, &i_font_size,
1116                     psz_temp_color1, psz_temp_color2, psz_temp_color3, psz_temp_color4, &i_bold, &i_italic,
1117                     &i_underline, &i_strikeout, &i_scale_x, &i_scale_y, &i_spacing, &i_border, &i_outline,
1118                     &i_shadow, &i_align, &i_margin_l, &i_margin_r, &i_margin_v ) == 21 )
1119                 {
1120                     ssa_style_t *p_style = malloc( sizeof(ssa_style_t) );
1121
1122                     p_style->psz_stylename = strdup( psz_temp_stylename );
1123                     p_style->font_style.psz_fontname = strdup( psz_temp_fontname );
1124                     p_style->font_style.i_font_size = i_font_size;
1125                     msg_Dbg( p_dec, psz_temp_color1 );
1126                     ParseColor( p_dec, psz_temp_color1, &p_style->font_style.i_font_color, &p_style->font_style.i_font_alpha );
1127                     ParseColor( p_dec, psz_temp_color3, &p_style->font_style.i_outline_color, &p_style->font_style.i_outline_alpha );
1128                     ParseColor( p_dec, psz_temp_color4, &p_style->font_style.i_shadow_color, &p_style->font_style.i_shadow_alpha );
1129
1130                     p_style->font_style.i_style_flags = 0;
1131                     if( i_bold ) p_style->font_style.i_style_flags |= STYLE_BOLD;
1132                     if( i_italic ) p_style->font_style.i_style_flags |= STYLE_ITALIC;
1133                     if( i_underline ) p_style->font_style.i_style_flags |= STYLE_UNDERLINE;
1134                     if( i_strikeout ) p_style->font_style.i_style_flags |= STYLE_STRIKEOUT;
1135                     if( i_border == 1 ) p_style->font_style.i_style_flags |= (STYLE_ITALIC | STYLE_OUTLINE);
1136                     else if( i_border == 3 )
1137                     {
1138                         p_style->font_style.i_style_flags |= STYLE_BACKGROUND;
1139                         p_style->font_style.i_background_color = p_style->font_style.i_shadow_color;
1140                         p_style->font_style.i_background_alpha = p_style->font_style.i_shadow_alpha;
1141                     }
1142                     p_style->font_style.i_shadow_width  = ( i_border == 1 ) ? i_shadow : 0;
1143                     p_style->font_style.i_outline_width = ( i_border == 1 ) ? i_outline : 0;
1144                     p_style->font_style.i_spacing = i_spacing;
1145                     //p_style->font_style.f_angle = f_angle;
1146
1147                     p_style->i_align = 0;
1148                     if( i_align == 0x1 || i_align == 0x4 || i_align == 0x1 ) p_style->i_align |= SUBPICTURE_ALIGN_LEFT;
1149                     if( i_align == 0x3 || i_align == 0x6 || i_align == 0x9 ) p_style->i_align |= SUBPICTURE_ALIGN_RIGHT;
1150                     if( i_align == 0x7 || i_align == 0x8 || i_align == 0x9 ) p_style->i_align |= SUBPICTURE_ALIGN_TOP;
1151                     if( i_align == 0x1 || i_align == 0x2 || i_align == 0x3 ) p_style->i_align |= SUBPICTURE_ALIGN_BOTTOM;
1152                     p_style->i_margin_h = ( p_style->i_align & SUBPICTURE_ALIGN_RIGHT ) ? i_margin_r : i_margin_l;
1153                     p_style->i_margin_v = i_margin_v;
1154
1155                     /*TODO: Ignored: angle i_scale_x|y (fontscaling), i_encoding */
1156                     TAB_APPEND( p_sys->i_ssa_styles, p_sys->pp_ssa_styles, p_style );
1157                 }
1158                 else msg_Dbg( p_dec, "SSA V4+ styleline parsing failed" );
1159             }
1160         }
1161         psz_parser = GotoNextLine( psz_parser );
1162     }
1163
1164 eof:
1165     if( psz_header ) free( psz_header );
1166     return;
1167 }
1168
1169 static void StripTags( char *psz_text )
1170 {
1171     int i_left_moves = 0;
1172     vlc_bool_t b_inside_tag = VLC_FALSE;
1173     int i = 0;
1174     int i_tag_start = -1;
1175     while( psz_text[ i ] )
1176     {
1177         if( !b_inside_tag )
1178         {
1179             if( psz_text[ i ] == '<' )
1180             {
1181                 b_inside_tag = VLC_TRUE;
1182                 i_tag_start = i;
1183             }
1184             psz_text[ i - i_left_moves ] = psz_text[ i ];
1185         }
1186         else
1187         {
1188             if( ( psz_text[ i ] == ' ' ) ||
1189                 ( psz_text[ i ] == '\t' ) ||
1190                 ( psz_text[ i ] == '\n' ) ||
1191                 ( psz_text[ i ] == '\r' ) )
1192             {
1193                 b_inside_tag = VLC_FALSE;
1194                 i_tag_start = -1;
1195             }
1196             else if( psz_text[ i ] == '>' )
1197             {
1198                 i_left_moves += i - i_tag_start + 1;
1199                 i_tag_start = -1;
1200                 b_inside_tag = VLC_FALSE;
1201             }
1202             else
1203             {
1204                 psz_text[ i - i_left_moves ] = psz_text[ i ];
1205             }
1206         }
1207         i++;
1208     }
1209     psz_text[ i - i_left_moves ] = '\0';
1210 }