git.sesse.net Git - vlc/blob - modules/misc/text_renderer.h

   1 /*****************************************************************************
   2  * text_renderer.h: common text renderer code
   3  *****************************************************************************
   4  * Copyright (C) 2007-2008 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Bernie Purcell <bitmap@videolan.org>
   8  *          Laurent Aimar < fenrir AT videolan DOT 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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23  *****************************************************************************/
  24
  25 typedef struct font_stack_t font_stack_t;
  26 struct font_stack_t
  27 {
  28     char          *psz_name;
  29     int            i_size;
  30     uint32_t       i_color;            /* ARGB */
  31     uint32_t       i_karaoke_bg_color; /* ARGB */
  32
  33     font_stack_t  *p_next;
  34 };
  35
  36 static void SetupLine( filter_t *p_filter, const char *psz_text_in,
  37                        UCHAR **psz_text_out, uint32_t *pi_runs,
  38                        uint32_t **ppi_run_lengths, TR_FONT_STYLE_PTR **ppp_styles,
  39                        TR_FONT_STYLE_PTR p_style );
  40
  41 static TR_FONT_STYLE_PTR GetStyleFromFontStack( filter_sys_t *p_sys,
  42                                           font_stack_t **p_fonts, bool b_bold, bool b_italic,
  43                                           bool b_uline );
  44
  45 static int PushFont( font_stack_t **p_font, const char *psz_name, int i_size,
  46                      uint32_t i_color, uint32_t i_karaoke_bg_color )
  47 {
  48     font_stack_t *p_new;
  49
  50     if( !p_font )
  51         return VLC_EGENERIC;
  52
  53     p_new = malloc( sizeof( font_stack_t ) );
  54     if( ! p_new )
  55         return VLC_ENOMEM;
  56
  57     p_new->p_next = NULL;
  58
  59     if( psz_name )
  60         p_new->psz_name = strdup( psz_name );
  61     else
  62         p_new->psz_name = NULL;
  63
  64     p_new->i_size              = i_size;
  65     p_new->i_color             = i_color;
  66     p_new->i_karaoke_bg_color  = i_karaoke_bg_color;
  67
  68     if( !*p_font )
  69     {
  70         *p_font = p_new;
  71     }
  72     else
  73     {
  74         font_stack_t *p_last;
  75
  76         for( p_last = *p_font;
  77              p_last->p_next;
  78              p_last = p_last->p_next )
  79         ;
  80
  81         p_last->p_next = p_new;
  82     }
  83     return VLC_SUCCESS;
  84 }
  85
  86 static int PopFont( font_stack_t **p_font )
  87 {
  88     font_stack_t *p_last, *p_next_to_last;
  89
  90     if( !p_font || !*p_font )
  91         return VLC_EGENERIC;
  92
  93     p_next_to_last = NULL;
  94     for( p_last = *p_font;
  95          p_last->p_next;
  96          p_last = p_last->p_next )
  97     {
  98         p_next_to_last = p_last;
  99     }
 100
 101     if( p_next_to_last )
 102         p_next_to_last->p_next = NULL;
 103     else
 104         *p_font = NULL;
 105
 106     free( p_last->psz_name );
 107     free( p_last );
 108
 109     return VLC_SUCCESS;
 110 }
 111
 112 static int PeekFont( font_stack_t **p_font, char **psz_name, int *i_size,
 113                      uint32_t *i_color, uint32_t *i_karaoke_bg_color )
 114 {
 115     font_stack_t *p_last;
 116
 117     if( !p_font || !*p_font )
 118         return VLC_EGENERIC;
 119
 120     for( p_last=*p_font;
 121          p_last->p_next;
 122          p_last=p_last->p_next )
 123     ;
 124
 125     *psz_name            = p_last->psz_name;
 126     *i_size              = p_last->i_size;
 127     *i_color             = p_last->i_color;
 128     *i_karaoke_bg_color  = p_last->i_karaoke_bg_color;
 129
 130     return VLC_SUCCESS;
 131 }
 132
 133 static const struct {
 134     const char *psz_name;
 135     uint32_t   i_value;
 136 } p_html_colors[] = {
 137     /* Official html colors */
 138     { "Aqua",    0x00FFFF },
 139     { "Black",   0x000000 },
 140     { "Blue",    0x0000FF },
 141     { "Fuchsia", 0xFF00FF },
 142     { "Gray",    0x808080 },
 143     { "Green",   0x008000 },
 144     { "Lime",    0x00FF00 },
 145     { "Maroon",  0x800000 },
 146     { "Navy",    0x000080 },
 147     { "Olive",   0x808000 },
 148     { "Purple",  0x800080 },
 149     { "Red",     0xFF0000 },
 150     { "Silver",  0xC0C0C0 },
 151     { "Teal",    0x008080 },
 152     { "White",   0xFFFFFF },
 153     { "Yellow",  0xFFFF00 },
 154
 155     /* Common ones */
 156     { "AliceBlue", 0xF0F8FF },
 157     { "AntiqueWhite", 0xFAEBD7 },
 158     { "Aqua", 0x00FFFF },
 159     { "Aquamarine", 0x7FFFD4 },
 160     { "Azure", 0xF0FFFF },
 161     { "Beige", 0xF5F5DC },
 162     { "Bisque", 0xFFE4C4 },
 163     { "Black", 0x000000 },
 164     { "BlanchedAlmond", 0xFFEBCD },
 165     { "Blue", 0x0000FF },
 166     { "BlueViolet", 0x8A2BE2 },
 167     { "Brown", 0xA52A2A },
 168     { "BurlyWood", 0xDEB887 },
 169     { "CadetBlue", 0x5F9EA0 },
 170     { "Chartreuse", 0x7FFF00 },
 171     { "Chocolate", 0xD2691E },
 172     { "Coral", 0xFF7F50 },
 173     { "CornflowerBlue", 0x6495ED },
 174     { "Cornsilk", 0xFFF8DC },
 175     { "Crimson", 0xDC143C },
 176     { "Cyan", 0x00FFFF },
 177     { "DarkBlue", 0x00008B },
 178     { "DarkCyan", 0x008B8B },
 179     { "DarkGoldenRod", 0xB8860B },
 180     { "DarkGray", 0xA9A9A9 },
 181     { "DarkGrey", 0xA9A9A9 },
 182     { "DarkGreen", 0x006400 },
 183     { "DarkKhaki", 0xBDB76B },
 184     { "DarkMagenta", 0x8B008B },
 185     { "DarkOliveGreen", 0x556B2F },
 186     { "Darkorange", 0xFF8C00 },
 187     { "DarkOrchid", 0x9932CC },
 188     { "DarkRed", 0x8B0000 },
 189     { "DarkSalmon", 0xE9967A },
 190     { "DarkSeaGreen", 0x8FBC8F },
 191     { "DarkSlateBlue", 0x483D8B },
 192     { "DarkSlateGray", 0x2F4F4F },
 193     { "DarkSlateGrey", 0x2F4F4F },
 194     { "DarkTurquoise", 0x00CED1 },
 195     { "DarkViolet", 0x9400D3 },
 196     { "DeepPink", 0xFF1493 },
 197     { "DeepSkyBlue", 0x00BFFF },
 198     { "DimGray", 0x696969 },
 199     { "DimGrey", 0x696969 },
 200     { "DodgerBlue", 0x1E90FF },
 201     { "FireBrick", 0xB22222 },
 202     { "FloralWhite", 0xFFFAF0 },
 203     { "ForestGreen", 0x228B22 },
 204     { "Fuchsia", 0xFF00FF },
 205     { "Gainsboro", 0xDCDCDC },
 206     { "GhostWhite", 0xF8F8FF },
 207     { "Gold", 0xFFD700 },
 208     { "GoldenRod", 0xDAA520 },
 209     { "Gray", 0x808080 },
 210     { "Grey", 0x808080 },
 211     { "Green", 0x008000 },
 212     { "GreenYellow", 0xADFF2F },
 213     { "HoneyDew", 0xF0FFF0 },
 214     { "HotPink", 0xFF69B4 },
 215     { "IndianRed", 0xCD5C5C },
 216     { "Indigo", 0x4B0082 },
 217     { "Ivory", 0xFFFFF0 },
 218     { "Khaki", 0xF0E68C },
 219     { "Lavender", 0xE6E6FA },
 220     { "LavenderBlush", 0xFFF0F5 },
 221     { "LawnGreen", 0x7CFC00 },
 222     { "LemonChiffon", 0xFFFACD },
 223     { "LightBlue", 0xADD8E6 },
 224     { "LightCoral", 0xF08080 },
 225     { "LightCyan", 0xE0FFFF },
 226     { "LightGoldenRodYellow", 0xFAFAD2 },
 227     { "LightGray", 0xD3D3D3 },
 228     { "LightGrey", 0xD3D3D3 },
 229     { "LightGreen", 0x90EE90 },
 230     { "LightPink", 0xFFB6C1 },
 231     { "LightSalmon", 0xFFA07A },
 232     { "LightSeaGreen", 0x20B2AA },
 233     { "LightSkyBlue", 0x87CEFA },
 234     { "LightSlateGray", 0x778899 },
 235     { "LightSlateGrey", 0x778899 },
 236     { "LightSteelBlue", 0xB0C4DE },
 237     { "LightYellow", 0xFFFFE0 },
 238     { "Lime", 0x00FF00 },
 239     { "LimeGreen", 0x32CD32 },
 240     { "Linen", 0xFAF0E6 },
 241     { "Magenta", 0xFF00FF },
 242     { "Maroon", 0x800000 },
 243     { "MediumAquaMarine", 0x66CDAA },
 244     { "MediumBlue", 0x0000CD },
 245     { "MediumOrchid", 0xBA55D3 },
 246     { "MediumPurple", 0x9370D8 },
 247     { "MediumSeaGreen", 0x3CB371 },
 248     { "MediumSlateBlue", 0x7B68EE },
 249     { "MediumSpringGreen", 0x00FA9A },
 250     { "MediumTurquoise", 0x48D1CC },
 251     { "MediumVioletRed", 0xC71585 },
 252     { "MidnightBlue", 0x191970 },
 253     { "MintCream", 0xF5FFFA },
 254     { "MistyRose", 0xFFE4E1 },
 255     { "Moccasin", 0xFFE4B5 },
 256     { "NavajoWhite", 0xFFDEAD },
 257     { "Navy", 0x000080 },
 258     { "OldLace", 0xFDF5E6 },
 259     { "Olive", 0x808000 },
 260     { "OliveDrab", 0x6B8E23 },
 261     { "Orange", 0xFFA500 },
 262     { "OrangeRed", 0xFF4500 },
 263     { "Orchid", 0xDA70D6 },
 264     { "PaleGoldenRod", 0xEEE8AA },
 265     { "PaleGreen", 0x98FB98 },
 266     { "PaleTurquoise", 0xAFEEEE },
 267     { "PaleVioletRed", 0xD87093 },
 268     { "PapayaWhip", 0xFFEFD5 },
 269     { "PeachPuff", 0xFFDAB9 },
 270     { "Peru", 0xCD853F },
 271     { "Pink", 0xFFC0CB },
 272     { "Plum", 0xDDA0DD },
 273     { "PowderBlue", 0xB0E0E6 },
 274     { "Purple", 0x800080 },
 275     { "Red", 0xFF0000 },
 276     { "RosyBrown", 0xBC8F8F },
 277     { "RoyalBlue", 0x4169E1 },
 278     { "SaddleBrown", 0x8B4513 },
 279     { "Salmon", 0xFA8072 },
 280     { "SandyBrown", 0xF4A460 },
 281     { "SeaGreen", 0x2E8B57 },
 282     { "SeaShell", 0xFFF5EE },
 283     { "Sienna", 0xA0522D },
 284     { "Silver", 0xC0C0C0 },
 285     { "SkyBlue", 0x87CEEB },
 286     { "SlateBlue", 0x6A5ACD },
 287     { "SlateGray", 0x708090 },
 288     { "SlateGrey", 0x708090 },
 289     { "Snow", 0xFFFAFA },
 290     { "SpringGreen", 0x00FF7F },
 291     { "SteelBlue", 0x4682B4 },
 292     { "Tan", 0xD2B48C },
 293     { "Teal", 0x008080 },
 294     { "Thistle", 0xD8BFD8 },
 295     { "Tomato", 0xFF6347 },
 296     { "Turquoise", 0x40E0D0 },
 297     { "Violet", 0xEE82EE },
 298     { "Wheat", 0xF5DEB3 },
 299     { "White", 0xFFFFFF },
 300     { "WhiteSmoke", 0xF5F5F5 },
 301     { "Yellow", 0xFFFF00 },
 302     { "YellowGreen", 0x9ACD32 },
 303
 304     { NULL, 0 }
 305 };
 306
 307 static int HandleFontAttributes( xml_reader_t *p_xml_reader,
 308                                   font_stack_t **p_fonts, int i_scale )
 309 {
 310     int        rv;
 311     char      *psz_fontname = NULL;
 312     uint32_t   i_font_color = 0xffffff;
 313     int        i_font_alpha = 0;
 314     uint32_t   i_karaoke_bg_color = 0x00ffffff;
 315     int        i_font_size  = 24;
 316
 317     /* Default all attributes to the top font in the stack -- in case not
 318      * all attributes are specified in the sub-font
 319      */
 320     if( VLC_SUCCESS == PeekFont( p_fonts,
 321                                  &psz_fontname,
 322                                  &i_font_size,
 323                                  &i_font_color,
 324                                  &i_karaoke_bg_color ))
 325     {
 326         psz_fontname = strdup( psz_fontname );
 327         i_font_size = i_font_size * 1000 / i_scale;
 328     }
 329     i_font_alpha = (i_font_color >> 24) & 0xff;
 330     i_font_color &= 0x00ffffff;
 331
 332     while ( xml_ReaderNextAttr( p_xml_reader ) == VLC_SUCCESS )
 333     {
 334         char *psz_name = xml_ReaderName( p_xml_reader );
 335         char *psz_value = xml_ReaderValue( p_xml_reader );
 336
 337         if( psz_name && psz_value )
 338         {
 339             if( !strcasecmp( "face", psz_name ) )
 340             {
 341                 free( psz_fontname );
 342                 psz_fontname = strdup( psz_value );
 343             }
 344             else if( !strcasecmp( "size", psz_name ) )
 345             {
 346                 if( ( *psz_value == '+' ) || ( *psz_value == '-' ) )
 347                 {
 348                     int i_value = atoi( psz_value );
 349
 350                     if( ( i_value >= -5 ) && ( i_value <= 5 ) )
 351                         i_font_size += ( i_value * i_font_size ) / 10;
 352                     else if( i_value < -5 )
 353                         i_font_size = - i_value;
 354                     else if( i_value > 5 )
 355                         i_font_size = i_value;
 356                 }
 357                 else
 358                     i_font_size = atoi( psz_value );
 359             }
 360             else if( !strcasecmp( "color", psz_name ) )
 361             {
 362                 if( psz_value[0] == '#' )
 363                 {
 364                     i_font_color = strtol( psz_value + 1, NULL, 16 );
 365                     i_font_color &= 0x00ffffff;
 366                 }
 367                 else
 368                 {
 369                     for( int i = 0; p_html_colors[i].psz_name != NULL; i++ )
 370                     {
 371                         if( !strncasecmp( psz_value, p_html_colors[i].psz_name, strlen(p_html_colors[i].psz_name) ) )
 372                         {
 373                             i_font_color = p_html_colors[i].i_value;
 374                             break;
 375                         }
 376                     }
 377                 }
 378             }
 379             else if( !strcasecmp( "alpha", psz_name ) &&
 380                      ( psz_value[0] == '#' ) )
 381             {
 382                 i_font_alpha = strtol( psz_value + 1, NULL, 16 );
 383                 i_font_alpha &= 0xff;
 384             }
 385         }
 386         free( psz_name );
 387         free( psz_value );
 388     }
 389     rv = PushFont( p_fonts,
 390                    psz_fontname,
 391                    i_font_size * i_scale / 1000,
 392                    (i_font_color & 0xffffff) | ((i_font_alpha & 0xff) << 24),
 393                    i_karaoke_bg_color );
 394
 395     free( psz_fontname );
 396
 397     return rv;
 398 }
 399
 400 static void SetKaraokeLen( uint32_t i_runs, uint32_t *pi_run_lengths,
 401                            uint32_t i_k_runs, uint32_t *pi_k_run_lengths )
 402 {
 403     /* Karaoke tags _PRECEDE_ the text they specify a duration
 404      * for, therefore we are working out the length for the
 405      * previous tag, and first time through we have nothing
 406      */
 407     if( pi_k_run_lengths )
 408     {
 409         int i_chars = 0;
 410         uint32_t i;
 411
 412         /* Work out how many characters are presently in the string
 413          */
 414         for( i = 0; i < i_runs; i++ )
 415             i_chars += pi_run_lengths[ i ];
 416
 417         /* Subtract away those we've already allocated to other
 418          * karaoke tags
 419          */
 420         for( i = 0; i < i_k_runs; i++ )
 421             i_chars -= pi_k_run_lengths[ i ];
 422
 423         pi_k_run_lengths[ i_k_runs - 1 ] = i_chars;
 424     }
 425 }
 426
 427 static void SetupKaraoke( xml_reader_t *p_xml_reader, uint32_t *pi_k_runs,
 428                           uint32_t **ppi_k_run_lengths,
 429                           uint32_t **ppi_k_durations )
 430 {
 431     while ( xml_ReaderNextAttr( p_xml_reader ) == VLC_SUCCESS )
 432     {
 433         char *psz_name = xml_ReaderName( p_xml_reader );
 434         char *psz_value = xml_ReaderValue( p_xml_reader );
 435
 436         if( psz_name && psz_value &&
 437             !strcasecmp( "t", psz_name ) )
 438         {
 439             if( ppi_k_durations && ppi_k_run_lengths )
 440             {
 441                 (*pi_k_runs)++;
 442
 443                 if( *ppi_k_durations )
 444                 {
 445                     *ppi_k_durations = (uint32_t *)
 446                         realloc( *ppi_k_durations,
 447                                  *pi_k_runs * sizeof( uint32_t ) );
 448                 }
 449                 else if( *pi_k_runs == 1 )
 450                 {
 451                     *ppi_k_durations = (uint32_t *)
 452                         malloc( *pi_k_runs * sizeof( uint32_t ) );
 453                 }
 454
 455                 if( *ppi_k_run_lengths )
 456                 {
 457                     *ppi_k_run_lengths = (uint32_t *)
 458                         realloc( *ppi_k_run_lengths,
 459                                  *pi_k_runs * sizeof( uint32_t ) );
 460                 }
 461                 else if( *pi_k_runs == 1 )
 462                 {
 463                     *ppi_k_run_lengths = (uint32_t *)
 464                         malloc( *pi_k_runs * sizeof( uint32_t ) );
 465                 }
 466                 if( *ppi_k_durations )
 467                     (*ppi_k_durations)[ *pi_k_runs - 1 ] = atoi( psz_value );
 468
 469                 if( *ppi_k_run_lengths )
 470                     (*ppi_k_run_lengths)[ *pi_k_runs - 1 ] = 0;
 471             }
 472         }
 473         free( psz_name );
 474         free( psz_value );
 475     }
 476 }
 477
 478 /* Turn any multiple-whitespaces into single spaces */
 479 static void HandleWhiteSpace( char *psz_node )
 480 {
 481     char *s = strpbrk( psz_node, "\t\r\n " );
 482     while( s )
 483     {
 484         int i_whitespace = strspn( s, "\t\r\n " );
 485
 486         if( i_whitespace > 1 )
 487             memmove( &s[1],
 488                      &s[i_whitespace],
 489                      strlen( s ) - i_whitespace + 1 );
 490         *s++ = ' ';
 491
 492         s = strpbrk( s, "\t\r\n " );
 493     }
 494 }
 495
 496 /* */
 497 static int ProcessNodes( filter_t *p_filter,
 498                          xml_reader_t *p_xml_reader,
 499                          text_style_t *p_font_style,
 500                          UCHAR *psz_text,
 501                          int *pi_len,
 502
 503                          uint32_t *pi_runs,
 504                          uint32_t **ppi_run_lengths,
 505                          TR_FONT_STYLE_PTR **ppp_styles,
 506
 507                          bool b_karaoke,
 508                          uint32_t *pi_k_runs,
 509                          uint32_t **ppi_k_run_lengths,
 510                          uint32_t **ppi_k_durations )
 511 {
 512     int           rv             = VLC_SUCCESS;
 513     filter_sys_t *p_sys          = p_filter->p_sys;
 514     UCHAR        *psz_text_orig  = psz_text;
 515     font_stack_t *p_fonts        = NULL;
 516     vlc_value_t   val;
 517     int           i_scale        = 1000;
 518
 519     char *psz_node  = NULL;
 520
 521     bool b_italic = false;
 522     bool b_bold   = false;
 523     bool b_uline  = false;
 524
 525     if( VLC_SUCCESS == var_Get( p_filter, "scale", &val ))
 526         i_scale = val.i_int;
 527
 528     if( p_font_style )
 529     {
 530         rv = PushFont( &p_fonts,
 531                p_font_style->psz_fontname,
 532                p_font_style->i_font_size * i_scale / 1000,
 533                (p_font_style->i_font_color & 0xffffff) |
 534                    ((p_font_style->i_font_alpha & 0xff) << 24),
 535                (p_font_style->i_karaoke_background_color & 0xffffff) |
 536                    ((p_font_style->i_karaoke_background_alpha & 0xff) << 24));
 537
 538         if( p_font_style->i_style_flags & STYLE_BOLD )
 539             b_bold = true;
 540         if( p_font_style->i_style_flags & STYLE_ITALIC )
 541             b_italic = true;
 542         if( p_font_style->i_style_flags & STYLE_UNDERLINE )
 543             b_uline = true;
 544     }
 545     else
 546     {
 547         rv = PushFont( &p_fonts,
 548                        TR_DEFAULT_FONT,
 549                        p_sys->i_font_size,
 550                        TR_DEFAULT_COLOR,
 551                        0x00ffffff );
 552     }
 553     if( rv != VLC_SUCCESS )
 554         return rv;
 555
 556     while ( ( xml_ReaderRead( p_xml_reader ) == 1 ) )
 557     {
 558         switch ( xml_ReaderNodeType( p_xml_reader ) )
 559         {
 560             case XML_READER_NONE:
 561                 break;
 562             case XML_READER_ENDELEM:
 563                 psz_node = xml_ReaderName( p_xml_reader );
 564                 if( psz_node )
 565                 {
 566                     if( !strcasecmp( "font", psz_node ) )
 567                         PopFont( &p_fonts );
 568                     else if( !strcasecmp( "b", psz_node ) )
 569                         b_bold   = false;
 570                     else if( !strcasecmp( "i", psz_node ) )
 571                         b_italic = false;
 572                     else if( !strcasecmp( "u", psz_node ) )
 573                         b_uline  = false;
 574
 575                     free( psz_node );
 576                 }
 577                 break;
 578             case XML_READER_STARTELEM:
 579                 psz_node = xml_ReaderName( p_xml_reader );
 580                 if( psz_node )
 581                 {
 582                     if( !strcasecmp( "font", psz_node ) )
 583                         rv = HandleFontAttributes( p_xml_reader, &p_fonts, i_scale );
 584                     else if( !strcasecmp( "b", psz_node ) )
 585                         b_bold = true;
 586                     else if( !strcasecmp( "i", psz_node ) )
 587                         b_italic = true;
 588                     else if( !strcasecmp( "u", psz_node ) )
 589                         b_uline = true;
 590                     else if( !strcasecmp( "br", psz_node ) )
 591                     {
 592                         SetupLine( p_filter, "\n", &psz_text,
 593                                    pi_runs, ppi_run_lengths, ppp_styles,
 594                                    GetStyleFromFontStack( p_sys,
 595                                                           &p_fonts,
 596                                                           b_bold,
 597                                                           b_italic,
 598                                                           b_uline ) );
 599                     }
 600                     else if( !strcasecmp( "k", psz_node ) )
 601                     {
 602                         /* Only valid in karaoke */
 603                         if( b_karaoke )
 604                         {
 605                             if( *pi_k_runs > 0 )
 606                             {
 607                                 SetKaraokeLen( *pi_runs, *ppi_run_lengths,
 608                                                *pi_k_runs, *ppi_k_run_lengths );
 609                             }
 610                             SetupKaraoke( p_xml_reader, pi_k_runs,
 611                                           ppi_k_run_lengths, ppi_k_durations );
 612                         }
 613                     }
 614
 615                     free( psz_node );
 616                 }
 617                 break;
 618             case XML_READER_TEXT:
 619                 psz_node = xml_ReaderValue( p_xml_reader );
 620                 if( psz_node )
 621                 {
 622                     /* */
 623                     HandleWhiteSpace( psz_node );
 624                     resolve_xml_special_chars( psz_node );
 625
 626                     SetupLine( p_filter, psz_node, &psz_text,
 627                                pi_runs, ppi_run_lengths, ppp_styles,
 628                                GetStyleFromFontStack( p_sys,
 629                                                       &p_fonts,
 630                                                       b_bold,
 631                                                       b_italic,
 632                                                       b_uline ) );
 633                     free( psz_node );
 634                 }
 635                 break;
 636         }
 637         if( rv != VLC_SUCCESS )
 638         {
 639             psz_text = psz_text_orig;
 640             break;
 641         }
 642     }
 643     if( b_karaoke )
 644     {
 645         SetKaraokeLen( *pi_runs, *ppi_run_lengths,
 646                        *pi_k_runs, *ppi_k_run_lengths );
 647     }
 648
 649     *pi_len = psz_text - psz_text_orig;
 650
 651     while( VLC_SUCCESS == PopFont( &p_fonts ) );
 652
 653     return rv;
 654 }