1 /*****************************************************************************
2 * rss.c : rss/atom feed display video plugin for vlc
3 *****************************************************************************
4 * Copyright (C) 2003-2006 the VideoLAN team
7 * Authors: Antoine Cellerier <dionoea -at- videolan -dot- org>
8 * RĂ©mi Duraffort <ivoire -at- videolan -dot- org>
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.
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.
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 *****************************************************************************/
25 /*****************************************************************************
26 * Atom : http://www.ietf.org/rfc/rfc4287.txt
27 * RSS : http://www.rssboard.org/rss-specification
28 *****************************************************************************/
30 /*****************************************************************************
32 *****************************************************************************/
38 #include <vlc_common.h>
39 #include <vlc_plugin.h>
41 #include <vlc_filter.h>
42 #include <vlc_block.h>
45 #include <vlc_stream.h>
47 #include <vlc_charset.h>
49 #include <vlc_image.h>
53 /*****************************************************************************
55 *****************************************************************************/
56 static int CreateFilter ( vlc_object_t * );
57 static void DestroyFilter( vlc_object_t * );
58 static subpicture_t *Filter( filter_t *, mtime_t );
60 static struct rss_feed_t *FetchRSS( filter_t * );
61 static void FreeRSS( struct rss_feed_t *, int );
62 static int ParseUrls( filter_t *, char * );
64 static void Fetch( void * );
66 static const int pi_color_values[] = {
67 0xf0000000, 0x00000000, 0x00808080, 0x00C0C0C0,
68 0x00FFFFFF, 0x00800000, 0x00FF0000, 0x00FF00FF, 0x00FFFF00,
69 0x00808000, 0x00008000, 0x00008080, 0x0000FF00, 0x00800080,
70 0x00000080, 0x000000FF, 0x0000FFFF};
71 static const char *const ppsz_color_descriptions[] = {
72 N_("Default"), N_("Black"),
73 N_("Gray"), N_("Silver"), N_("White"), N_("Maroon"), N_("Red"),
74 N_("Fuchsia"), N_("Yellow"), N_("Olive"), N_("Green"),
75 N_("Teal"), N_("Lime"), N_("Purple"), N_("Navy"), N_("Blue"),
78 /*****************************************************************************
79 * filter_sys_t: rss filter descriptor
80 *****************************************************************************/
82 typedef struct rss_item_t
85 char *psz_description;
89 typedef struct rss_feed_t
93 char *psz_description;
105 vlc_timer_t timer; /* Timer to refresh the rss feeds */
108 int i_xoff, i_yoff; /* offsets for the display string in the video window */
109 int i_pos; /* permit relative positioning (top, bottom, left, right, center) */
113 char *psz_marquee; /* marquee string */
115 text_style_t *p_style; /* font control */
130 #define MSG_TEXT N_("Feed URLs")
131 #define MSG_LONGTEXT N_("RSS/Atom feed '|' (pipe) separated URLs.")
132 #define SPEED_TEXT N_("Speed of feeds")
133 #define SPEED_LONGTEXT N_("Speed of the RSS/Atom feeds in microseconds (bigger is slower).")
134 #define LENGTH_TEXT N_("Max length")
135 #define LENGTH_LONGTEXT N_("Maximum number of characters displayed on the " \
137 #define TTL_TEXT N_("Refresh time")
138 #define TTL_LONGTEXT N_("Number of seconds between each forced refresh " \
139 "of the feeds. 0 means that the feeds are never updated." )
140 #define IMAGE_TEXT N_("Feed images")
141 #define IMAGE_LONGTEXT N_("Display feed images if available.")
143 #define POSX_TEXT N_("X offset")
144 #define POSX_LONGTEXT N_("X offset, from the left screen edge." )
145 #define POSY_TEXT N_("Y offset")
146 #define POSY_LONGTEXT N_("Y offset, down from the top." )
147 #define OPACITY_TEXT N_("Opacity")
148 #define OPACITY_LONGTEXT N_("Opacity (inverse of transparency) of " \
149 "overlay text. 0 = transparent, 255 = totally opaque." )
151 #define SIZE_TEXT N_("Font size, pixels")
152 #define SIZE_LONGTEXT N_("Font size, in pixels. Default is -1 (use default " \
155 #define COLOR_TEXT N_("Color")
156 #define COLOR_LONGTEXT N_("Color of the text that will be rendered on "\
157 "the video. This must be an hexadecimal (like HTML colors). The first two "\
158 "chars are for red, then green, then blue. #000000 = black, #FF0000 = red,"\
159 " #00FF00 = green, #FFFF00 = yellow (red + green), #FFFFFF = white" )
161 #define POS_TEXT N_("Text position")
162 #define POS_LONGTEXT N_( \
163 "You can enforce the text position on the video " \
164 "(0=center, 1=left, 2=right, 4=top, 8=bottom; you can " \
165 "also use combinations of these values, eg 6 = top-right).")
167 #define TITLE_TEXT N_("Title display mode")
168 #define TITLE_LONGTEXT N_("Title display mode. Default is 0 (hidden) if the feed has an image and feed images are enabled, 1 otherwise.")
170 #define RSS_HELP N_("Display a RSS or ATOM Feed on your video")
172 static const int pi_pos_values[] = { 0, 1, 2, 4, 8, 5, 6, 9, 10 };
173 static const char *const ppsz_pos_descriptions[] =
174 { N_("Center"), N_("Left"), N_("Right"), N_("Top"), N_("Bottom"),
175 N_("Top-Left"), N_("Top-Right"), N_("Bottom-Left"), N_("Bottom-Right") };
183 static const int pi_title_modes[] = { default_title, hide_title, prepend_title, scroll_title };
184 static const char *const ppsz_title_modes[] =
185 { N_("Default"), N_("Don't show"), N_("Always visible"), N_("Scroll with feed") };
187 #define CFG_PREFIX "rss-"
189 /*****************************************************************************
191 *****************************************************************************/
193 set_capability( "sub filter", 1 )
194 set_shortname( N_("RSS / Atom") )
196 set_callbacks( CreateFilter, DestroyFilter )
197 set_category( CAT_VIDEO )
198 set_subcategory( SUBCAT_VIDEO_SUBPIC )
199 add_string( CFG_PREFIX "urls", NULL, NULL, MSG_TEXT, MSG_LONGTEXT, false )
201 set_section( N_("Position"), NULL )
202 add_integer( CFG_PREFIX "x", 0, NULL, POSX_TEXT, POSX_LONGTEXT, true )
203 add_integer( CFG_PREFIX "y", 0, NULL, POSY_TEXT, POSY_LONGTEXT, true )
204 add_integer( CFG_PREFIX "position", -1, NULL, POS_TEXT, POS_LONGTEXT, false )
205 change_integer_list( pi_pos_values, ppsz_pos_descriptions, NULL )
207 set_section( N_("Font"), NULL )
208 /* 5 sets the default to top [1] left [4] */
209 add_integer_with_range( CFG_PREFIX "opacity", 255, 0, 255, NULL,
210 OPACITY_TEXT, OPACITY_LONGTEXT, false )
211 add_integer( CFG_PREFIX "color", 0xFFFFFF, NULL, COLOR_TEXT, COLOR_LONGTEXT,
213 change_integer_list( pi_color_values, ppsz_color_descriptions, NULL )
214 add_integer( CFG_PREFIX "size", -1, NULL, SIZE_TEXT, SIZE_LONGTEXT, false )
216 set_section( N_("Misc"), NULL )
217 add_integer( CFG_PREFIX "speed", 100000, NULL, SPEED_TEXT, SPEED_LONGTEXT,
219 add_integer( CFG_PREFIX "length", 60, NULL, LENGTH_TEXT, LENGTH_LONGTEXT,
221 add_integer( CFG_PREFIX "ttl", 1800, NULL, TTL_TEXT, TTL_LONGTEXT, false )
222 add_bool( CFG_PREFIX "images", true, NULL, IMAGE_TEXT, IMAGE_LONGTEXT, false )
223 add_integer( CFG_PREFIX "title", default_title, NULL, TITLE_TEXT, TITLE_LONGTEXT, false )
224 change_integer_list( pi_title_modes, ppsz_title_modes, NULL )
226 set_description( N_("RSS and Atom feed display") )
227 add_shortcut( "rss" )
228 add_shortcut( "atom" )
231 static const char *const ppsz_filter_options[] = {
232 "urls", "x", "y", "position", "color", "size", "speed", "length",
233 "ttl", "images", "title", NULL
236 /*****************************************************************************
237 * CreateFilter: allocates RSS video filter
238 *****************************************************************************/
239 static int CreateFilter( vlc_object_t *p_this )
241 filter_t *p_filter = (filter_t *)p_this;
246 /* Allocate structure */
247 p_sys = p_filter->p_sys = malloc( sizeof( filter_sys_t ) );
251 config_ChainParse( p_filter, CFG_PREFIX, ppsz_filter_options,
254 /* Get the urls to parse: must be non empty */
255 psz_urls = var_CreateGetNonEmptyString( p_filter, CFG_PREFIX "urls" );
258 msg_Err( p_filter, "The list of urls must not be empty" );
263 /* Fill the p_sys structure with the configuration */
264 p_sys->i_title = var_CreateGetInteger( p_filter, CFG_PREFIX "title" );
265 p_sys->i_cur_feed = 0;
266 p_sys->i_cur_item = p_sys->i_title == scroll_title ? -1 : 0;
267 p_sys->i_cur_char = 0;
269 p_sys->p_feeds = NULL;
270 p_sys->i_speed = var_CreateGetInteger( p_filter, CFG_PREFIX "speed" );
271 p_sys->i_length = var_CreateGetInteger( p_filter, CFG_PREFIX "length" );
272 p_sys->b_images = var_CreateGetBool( p_filter, CFG_PREFIX "images" );
274 i_ttl = __MAX( 0, var_CreateGetInteger( p_filter, CFG_PREFIX "ttl" ) );
276 p_sys->psz_marquee = malloc( p_sys->i_length + 1 );
277 if( p_sys->psz_marquee == NULL )
283 p_sys->psz_marquee[p_sys->i_length] = '\0';
285 p_sys->p_style = text_style_New();
286 if( p_sys->p_style == NULL )
289 p_sys->i_xoff = var_CreateGetInteger( p_filter, CFG_PREFIX "x" );
290 p_sys->i_yoff = var_CreateGetInteger( p_filter, CFG_PREFIX "y" );
291 p_sys->i_pos = var_CreateGetInteger( p_filter, CFG_PREFIX "position" );
292 p_sys->p_style->i_font_alpha = 255 - var_CreateGetInteger( p_filter, CFG_PREFIX "opacity" );
293 p_sys->p_style->i_font_color = var_CreateGetInteger( p_filter, CFG_PREFIX "color" );
294 p_sys->p_style->i_font_size = var_CreateGetInteger( p_filter, CFG_PREFIX "size" );
296 if( p_sys->b_images && p_sys->p_style->i_font_size == -1 )
298 msg_Warn( p_filter, "rss-size wasn't specified. Feed images will thus be displayed without being resized" );
302 if( ParseUrls( p_filter, psz_urls ) )
306 vlc_mutex_init( &p_sys->lock );
307 p_filter->pf_sub_filter = Filter;
308 p_sys->last_date = (mtime_t)0;
309 p_sys->b_fetched = false;
311 /* Create and arm the timer */
312 if( vlc_timer_create( &p_sys->timer, Fetch, p_filter ) )
314 vlc_mutex_destroy( &p_sys->lock );
317 vlc_timer_schedule( p_sys->timer, false, 1,
318 (mtime_t)(i_ttl)*1000000 );
325 text_style_Delete( p_sys->p_style );
326 free( p_sys->psz_marquee );
331 /*****************************************************************************
332 * DestroyFilter: destroy RSS video filter
333 *****************************************************************************/
334 static void DestroyFilter( vlc_object_t *p_this )
336 filter_t *p_filter = (filter_t *)p_this;
337 filter_sys_t *p_sys = p_filter->p_sys;
339 vlc_timer_destroy( p_sys->timer );
340 vlc_mutex_destroy( &p_sys->lock );
342 text_style_Delete( p_sys->p_style );
343 free( p_sys->psz_marquee );
344 FreeRSS( p_sys->p_feeds, p_sys->i_feeds );
348 /****************************************************************************
349 * Filter: the whole thing
350 ****************************************************************************
351 * This function outputs subpictures at regular time intervals.
352 ****************************************************************************/
353 static subpicture_t *Filter( filter_t *p_filter, mtime_t date )
355 filter_sys_t *p_sys = p_filter->p_sys;
358 subpicture_region_t *p_region;
363 memset( &fmt, 0, sizeof(video_format_t) );
365 vlc_mutex_lock( &p_sys->lock );
367 /* Check if the feeds have been fetched and that we have some feeds */
368 /* TODO: check that we have items for each feeds */
369 if( !p_sys->b_fetched && p_sys->i_feeds > 0 )
371 vlc_mutex_unlock( &p_sys->lock );
376 + ( p_sys->i_cur_char == 0 && p_sys->i_cur_item == ( p_sys->i_title == scroll_title ? -1 : 0 ) ? 5 : 1 )
377 /* ( ... ? 5 : 1 ) means "wait 5 times more for the 1st char" */
378 * p_sys->i_speed > date )
380 vlc_mutex_unlock( &p_sys->lock );
384 p_sys->last_date = date;
386 if( p_sys->i_cur_item == -1 ? p_sys->p_feeds[p_sys->i_cur_feed].psz_title[p_sys->i_cur_char] == 0 : p_sys->p_feeds[p_sys->i_cur_feed].p_items[p_sys->i_cur_item].psz_title[p_sys->i_cur_char] == 0 )
388 p_sys->i_cur_char = 0;
390 if( p_sys->i_cur_item >= p_sys->p_feeds[p_sys->i_cur_feed].i_items )
392 if( p_sys->i_title == scroll_title )
393 p_sys->i_cur_item = -1;
395 p_sys->i_cur_item = 0;
396 p_sys->i_cur_feed = (p_sys->i_cur_feed + 1)%p_sys->i_feeds;
400 p_spu = filter_NewSubpicture( p_filter );
403 vlc_mutex_unlock( &p_sys->lock );
407 fmt.i_chroma = VLC_CODEC_TEXT;
409 p_spu->p_region = subpicture_region_New( &fmt );
410 if( !p_spu->p_region )
412 p_filter->pf_sub_buffer_del( p_filter, p_spu );
413 vlc_mutex_unlock( &p_sys->lock );
417 /* Generate the string that will be displayed. This string is supposed to
418 be p_sys->i_length characters long. */
419 i_item = p_sys->i_cur_item;
420 i_feed = p_sys->i_cur_feed;
421 p_feed = &p_sys->p_feeds[i_feed];
423 if( ( p_feed->p_pic && p_sys->i_title == default_title )
424 || p_sys->i_title == hide_title )
426 /* Don't display the feed's title if we have an image */
427 snprintf( p_sys->psz_marquee, p_sys->i_length, "%s",
428 p_sys->p_feeds[i_feed].p_items[i_item].psz_title
429 +p_sys->i_cur_char );
431 else if( ( !p_feed->p_pic && p_sys->i_title == default_title )
432 || p_sys->i_title == prepend_title )
434 snprintf( p_sys->psz_marquee, p_sys->i_length, "%s : %s",
435 p_sys->p_feeds[i_feed].psz_title,
436 p_sys->p_feeds[i_feed].p_items[i_item].psz_title
437 +p_sys->i_cur_char );
439 else /* scrolling title */
442 snprintf( p_sys->psz_marquee, p_sys->i_length, "%s : %s",
443 p_sys->p_feeds[i_feed].psz_title + p_sys->i_cur_char,
444 p_sys->p_feeds[i_feed].p_items[i_item+1].psz_title );
446 snprintf( p_sys->psz_marquee, p_sys->i_length, "%s",
447 p_sys->p_feeds[i_feed].p_items[i_item].psz_title
448 +p_sys->i_cur_char );
451 while( strlen( p_sys->psz_marquee ) < (unsigned int)p_sys->i_length )
454 if( i_item == p_sys->p_feeds[i_feed].i_items ) break;
455 snprintf( strchr( p_sys->psz_marquee, 0 ),
456 p_sys->i_length - strlen( p_sys->psz_marquee ),
458 p_sys->p_feeds[i_feed].p_items[i_item].psz_title );
461 /* Calls to snprintf might split multibyte UTF8 chars ...
462 * which freetype doesn't like. */
464 char *a = strdup( p_sys->psz_marquee );
466 char *b = p_sys->psz_marquee;
467 EnsureUTF8( p_sys->psz_marquee );
468 /* we want to use ' ' instead of '?' for erroneous chars */
471 if( *b != *a ) *b = ' ';
477 p_spu->p_region->psz_text = strdup(p_sys->psz_marquee);
478 if( p_sys->p_style->i_font_size > 0 )
479 p_spu->p_region->fmt.i_visible_height = p_sys->p_style->i_font_size;
480 p_spu->i_start = date;
482 p_spu->b_ephemer = true;
484 /* where to locate the string: */
485 if( p_sys->i_pos < 0 )
486 { /* set to an absolute xy */
487 p_spu->p_region->i_align = OSD_ALIGN_LEFT | OSD_ALIGN_TOP;
488 p_spu->b_absolute = true;
491 { /* set to one of the 9 relative locations */
492 p_spu->p_region->i_align = p_sys->i_pos;
493 p_spu->b_absolute = false;
495 p_spu->p_region->i_x = p_sys->i_xoff;
496 p_spu->p_region->i_y = p_sys->i_yoff;
498 p_spu->p_region->p_style = text_style_Duplicate( p_sys->p_style );
502 /* Display the feed's image */
503 picture_t *p_pic = p_feed->p_pic;
504 video_format_t fmt_out;
506 memset( &fmt_out, 0, sizeof(video_format_t) );
508 fmt_out.i_chroma = VLC_CODEC_YUVA;
509 fmt_out.i_sar_num = fmt_out.i_sar_den = 1;
511 fmt_out.i_visible_width = p_pic->p[Y_PLANE].i_visible_pitch;
513 fmt_out.i_visible_height = p_pic->p[Y_PLANE].i_visible_lines;
515 p_region = subpicture_region_New( &fmt_out );
518 msg_Err( p_filter, "cannot allocate SPU region" );
522 p_region->i_x = p_spu->p_region->i_x;
523 p_region->i_y = p_spu->p_region->i_y;
524 /* FIXME the copy is probably not needed anymore */
525 picture_Copy( p_region->p_picture, p_pic );
526 p_spu->p_region->p_next = p_region;
528 /* Offset text to display right next to the image */
529 p_spu->p_region->i_x += fmt_out.i_visible_width;
533 vlc_mutex_unlock( &p_sys->lock );
537 /****************************************************************************
538 * RSS related functions
539 ****************************************************************************
540 * You should always lock the p_filter mutex before using any of these
542 ***************************************************************************/
544 #undef LoadImage /* do not conflict with Win32 API */
546 /****************************************************************************
547 * download and resize image located at psz_url
548 ***************************************************************************/
549 static picture_t *LoadImage( filter_t *p_filter, const char *psz_url )
551 filter_sys_t *p_sys = p_filter->p_sys;
552 video_format_t fmt_in;
553 video_format_t fmt_out;
555 picture_t *p_pic = NULL;
556 image_handler_t *p_handler = image_HandlerCreate( p_filter );
558 memset( &fmt_in, 0, sizeof(video_format_t) );
559 memset( &fmt_out, 0, sizeof(video_format_t) );
561 fmt_out.i_chroma = VLC_CODEC_YUVA;
562 p_orig = image_ReadUrl( p_handler, psz_url, &fmt_in, &fmt_out );
566 msg_Warn( p_filter, "Unable to read image %s", psz_url );
568 else if( p_sys->p_style->i_font_size > 0 )
571 fmt_in.i_chroma = VLC_CODEC_YUVA;
572 fmt_in.i_height = p_orig->p[Y_PLANE].i_visible_lines;
573 fmt_in.i_width = p_orig->p[Y_PLANE].i_visible_pitch;
574 fmt_out.i_width = p_orig->p[Y_PLANE].i_visible_pitch
575 *p_sys->p_style->i_font_size/p_orig->p[Y_PLANE].i_visible_lines;
576 fmt_out.i_height = p_sys->p_style->i_font_size;
578 p_pic = image_Convert( p_handler, p_orig, &fmt_in, &fmt_out );
579 picture_Release( p_orig );
582 msg_Warn( p_filter, "Error while converting %s", psz_url );
590 image_HandlerDelete( p_handler );
595 /****************************************************************************
596 * remove all ' ' '\t' '\n' '\r' characters from the begining and end of the
598 ***************************************************************************/
599 static char *removeWhiteChars( const char *psz_src )
601 char *psz_src2,*psz_clean, *psz_clean2;
602 psz_src2 = psz_clean = strdup( psz_src );
605 while( ( *psz_clean == ' ' || *psz_clean == '\t'
606 || *psz_clean == '\n' || *psz_clean == '\r' )
607 && *psz_clean != '\0' )
611 i = strlen( psz_clean );
613 ( psz_clean[i] == ' ' || psz_clean[i] == '\t'
614 || psz_clean[i] == '\n' || psz_clean[i] == '\r' ) );
615 psz_clean[i+1] = '\0';
616 psz_clean2 = strdup( psz_clean );
622 /****************************************************************************
623 * Parse url list, psz_urls must be non empty (TODO: check it !)
624 ***************************************************************************/
625 static int ParseUrls( filter_t *p_filter, char *psz_urls )
627 filter_sys_t *p_sys = p_filter->p_sys;
628 char *psz_urls2 = psz_urls;
632 /* Count the number of feeds */
635 if( *psz_urls == '|' )
640 /* Allocate the structure */
641 p_sys->p_feeds = malloc( p_sys->i_feeds * sizeof( rss_feed_t ) );
642 if( !p_sys->p_feeds )
645 /* Loop on all urls and fill in the struct */
646 psz_urls = psz_urls2;
647 for( int i = 0; i < p_sys->i_feeds; i++ )
649 rss_feed_t* p_feed = p_sys->p_feeds + i;
652 if( i < p_sys->i_feeds - 1 )
654 psz_end = strchr( psz_urls, '|' );
661 p_feed->p_items = NULL;
662 p_feed->psz_title = NULL;
663 p_feed->psz_link = NULL;
664 p_feed->psz_description = NULL;
665 p_feed->psz_image = NULL;
666 p_feed->p_pic = NULL;
667 p_feed->psz_url = strdup( psz_urls );
669 psz_urls = psz_end + 1;
677 /****************************************************************************
679 ***************************************************************************/
680 static bool ParseFeed( filter_t *p_filter, xml_reader_t *p_xml_reader,
683 VLC_UNUSED(p_filter);
684 char *psz_eltname = NULL;
686 bool b_is_item = false;
687 bool b_is_image = false;
691 while( xml_ReaderRead( p_xml_reader ) == 1 )
693 switch( xml_ReaderNodeType( p_xml_reader ) )
699 case XML_READER_STARTELEM:
701 psz_eltname = xml_ReaderName( p_xml_reader );
706 msg_Dbg( p_filter, "element name: %s", psz_eltname );
709 if( !strcmp( psz_eltname, "item" ) || !strcmp( psz_eltname, "entry" ) )
713 p_feed->p_items = xrealloc( p_feed->p_items,
714 p_feed->i_items * sizeof( rss_item_t ) );
715 p_feed->p_items[p_feed->i_items-1].psz_title = NULL;
716 p_feed->p_items[p_feed->i_items-1].psz_description = NULL;
717 p_feed->p_items[p_feed->i_items-1].psz_link = NULL;
720 else if( !strcmp( psz_eltname, "image" ) )
725 else if( !strcmp( psz_eltname, "link" ) )
727 char *psz_href = NULL;
728 char *psz_rel = NULL;
729 while( xml_ReaderNextAttr( p_xml_reader ) == VLC_SUCCESS )
731 char *psz_name = xml_ReaderName( p_xml_reader );
732 char *psz_value = xml_ReaderValue( p_xml_reader );
733 if( !strcmp( psz_name, "rel" ) )
738 else if( !strcmp( psz_name, "href" ) )
741 psz_href = psz_value;
750 /* "rel" and "href" must be defined */
751 if( psz_rel && psz_href )
753 if( !strcmp( psz_rel, "alternate" ) && !b_is_item &&
754 !b_is_image && !p_feed->psz_link )
756 p_feed->psz_link = psz_href;
758 /* this isn't in the rfc but i found some ... */
759 else if( ( !strcmp( psz_rel, "logo" ) ||
760 !strcmp( psz_rel, "icon" ) )
761 && !b_is_item && !b_is_image
762 && !p_feed->psz_image )
764 p_feed->psz_image = psz_href;
779 case XML_READER_ENDELEM:
781 psz_eltname = xml_ReaderName( p_xml_reader );
786 msg_Dbg( p_filter, "element end : %s", psz_eltname );
789 if( !strcmp( psz_eltname, "item" ) || !strcmp( psz_eltname, "entry" ) )
795 else if( !strcmp( psz_eltname, "image" ) )
799 FREENULL( psz_eltname );
802 case XML_READER_TEXT:
806 char *psz_eltvalue = xml_ReaderValue( p_xml_reader );
810 char *psz_clean = removeWhiteChars( psz_eltvalue );
811 free( psz_eltvalue );
812 psz_eltvalue = psz_clean;
815 msg_Dbg( p_filter, " text : <%s>", psz_eltvalue );
817 /* Is it an item ? */
820 rss_item_t *p_item = p_feed->p_items+i_item;
822 if( !strcmp( psz_eltname, "title" ) && !p_item->psz_title )
824 p_item->psz_title = psz_eltvalue;
826 else if( !strcmp( psz_eltname, "link" ) /* rss */
827 && !p_item->psz_link )
829 p_item->psz_link = psz_eltvalue;
832 else if( ( !strcmp( psz_eltname, "description" ) ||
833 !strcmp( psz_eltname, "summary" ) )
834 && !p_item->psz_description )
836 p_item->psz_description = psz_eltvalue;
840 free( psz_eltvalue );
843 /* Is it an image ? */
844 else if( b_is_image )
846 if( !strcmp( psz_eltname, "url" ) && !p_feed->psz_image )
847 p_feed->psz_image = psz_eltvalue;
849 free( psz_eltvalue );
854 if( !strcmp( psz_eltname, "title" ) && !p_feed->psz_title )
856 p_feed->psz_title = psz_eltvalue;
859 else if( !strcmp( psz_eltname, "link" ) && !p_feed->psz_link )
861 p_feed->psz_link = psz_eltvalue;
864 else if( ( !strcmp( psz_eltname, "description" ) ||
865 !strcmp( psz_eltname, "subtitle" ) )
866 && !p_feed->psz_description )
868 p_feed->psz_description = psz_eltvalue;
871 else if( ( !strcmp( psz_eltname, "logo" ) ||
872 !strcmp( psz_eltname, "icon" ) )
873 && !p_feed->psz_image )
875 p_feed->psz_image = psz_eltvalue;
879 free( psz_eltvalue );
896 /****************************************************************************
897 * FetchRSS (or Atom) feeds
898 ***************************************************************************/
899 static rss_feed_t* FetchRSS( filter_t *p_filter )
901 filter_sys_t *p_sys = p_filter->p_sys;
905 xml_reader_t *p_xml_reader;
908 /* These data are not modified after the creation of the module so we don't
909 need to hold the lock */
910 int i_feeds = p_sys->i_feeds;
911 bool b_images = p_sys->b_images;
913 /* Allocate a new structure */
914 rss_feed_t *p_feeds = malloc( i_feeds * sizeof( rss_feed_t ) );
918 p_xml = xml_Create( p_filter );
921 msg_Err( p_filter, "Failed to open XML parser" );
926 /* Fetch all feeds and parse them */
927 for( i_feed = 0; i_feed < i_feeds; i_feed++ )
929 rss_feed_t *p_feed = p_feeds + i_feed;
930 rss_feed_t *p_old_feed = p_sys->p_feeds + i_feed;
932 /* Initialize the structure */
933 p_feed->psz_title = NULL;
934 p_feed->psz_description = NULL;
935 p_feed->psz_link = NULL;
936 p_feed->psz_image = NULL;
937 p_feed->p_pic = NULL;
939 p_feed->p_items = NULL;
941 p_feed->psz_url = strdup( p_old_feed->psz_url );
944 msg_Dbg( p_filter, "opening %s RSS/Atom feed ...", p_feed->psz_url );
946 p_stream = stream_UrlNew( p_filter, p_feed->psz_url );
949 msg_Err( p_filter, "Failed to open %s for reading", p_feed->psz_url );
954 p_xml_reader = xml_ReaderCreate( p_xml, p_stream );
957 msg_Err( p_filter, "Failed to open %s for parsing", p_feed->psz_url );
962 if( !ParseFeed( p_filter, p_xml_reader, p_feed ) )
965 /* If we have a image: load it if requiere */
966 if( b_images && p_feed->psz_image && !p_feed->p_pic )
968 p_feed->p_pic = LoadImage( p_filter, p_feed->psz_image );
971 msg_Dbg( p_filter, "done with %s RSS/Atom feed", p_feed->psz_url );
972 xml_ReaderDelete( p_xml, p_xml_reader );
973 stream_Delete( p_stream );
980 FreeRSS( p_feeds, i_feed + 1 );
982 xml_ReaderDelete( p_xml, p_xml_reader );
984 stream_Delete( p_stream );
991 /****************************************************************************
993 ***************************************************************************/
994 static void FreeRSS( rss_feed_t *p_feeds, int i_feeds )
996 for( int i_feed = 0; i_feed < i_feeds; i_feed++ )
998 rss_feed_t *p_feed = p_feeds+i_feed;
999 for( int i_item = 0; i_item < p_feed->i_items; i_item++ )
1001 rss_item_t *p_item = p_feed->p_items+i_item;
1002 free( p_item->psz_title );
1003 free( p_item->psz_link );
1004 free( p_item->psz_description );
1006 free( p_feed->p_items );
1007 free( p_feed->psz_title);
1008 free( p_feed->psz_link );
1009 free( p_feed->psz_description );
1010 free( p_feed->psz_image );
1011 if( p_feed->p_pic != NULL )
1012 picture_Release( p_feed->p_pic );
1013 free( p_feed->psz_url );
1018 static void Fetch( void *p_data )
1020 filter_t *p_filter = p_data;
1021 filter_sys_t *p_sys = p_filter->p_sys;
1023 msg_Dbg( p_filter, "Updating the rss feeds" );
1024 rss_feed_t *p_feeds = FetchRSS( p_filter );
1027 msg_Err( p_filter, "Unable to fetch the feeds" );
1031 rss_feed_t *p_old_feeds = p_sys->p_feeds;
1033 vlc_mutex_lock( &p_sys->lock );
1034 /* Update the feeds */
1035 p_sys->p_feeds = p_feeds;
1036 p_sys->b_fetched = true;
1037 /* Set all current info to the original values */
1038 p_sys->i_cur_feed = 0;
1039 p_sys->i_cur_item = p_sys->i_title == scroll_title ? -1 : 0;
1040 p_sys->i_cur_char = 0;
1041 vlc_mutex_unlock( &p_sys->lock );
1044 FreeRSS( p_old_feeds, p_sys->i_feeds );