mirror of https://code.videolan.org/videolan/vlc
* rss.c : add new rss module (sub filter)
Still needs much work example command line : ./vlc -vvv --color --sub-filter rss --rss-urls "http://kernel.org/kdist/rss.xml,http://fxfeeds.mozilla.org/rss20.xml * motiondetect.c : propset ... Id
This commit is contained in:
parent
b031bf93dd
commit
e497375b77
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@ -995,7 +995,7 @@ if test "${SYS}" != "mingwce"; then
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dnl VLC_ADD_PLUGINS([externrun])
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VLC_ADD_PLUGINS([access_fake access_filter_timeshift access_filter_record])
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VLC_ADD_PLUGINS([gestures rc telnet hotkeys netsync showintf time marq sap shout fake])
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VLC_ADD_PLUGINS([mosaic wall motiondetect clone crop])
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VLC_ADD_PLUGINS([rss mosaic wall motiondetect clone crop])
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VLC_ADD_PLUGINS([i420_yuy2 i422_yuy2 i420_ymga])
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VLC_ADD_PLUGINS([aout_file linear_resampler bandlimited_resampler])
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VLC_ADD_PLUGINS([float32_mixer spdif_mixer simple_channel_mixer])
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@ -13,5 +13,6 @@ SOURCES_blend = blend.c
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SOURCES_scale = scale.c
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SOURCES_time = time.c
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SOURCES_marq = marq.c
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SOURCES_rss = rss.c
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SOURCES_motiondetect = motiondetect.c
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noinst_HEADERS += filter_common.h
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@ -0,0 +1,511 @@
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/*****************************************************************************
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* rss.c : rss feed display video plugin for vlc
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*****************************************************************************
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* Copyright (C) 2003-2005 the VideoLAN team
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* $Id$
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*
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* Authors: Antoine Cellerier <dionoea@videolan.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
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*****************************************************************************/
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/*****************************************************************************
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* Preamble
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*****************************************************************************/
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#include <stdlib.h> /* malloc(), free() */
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#include <string.h>
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#include <vlc/vlc.h>
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#include <vlc/vout.h>
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#include "vlc_filter.h"
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#include "vlc_block.h"
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#include "osd.h"
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#include "vlc_block.h"
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#include "vlc_stream.h"
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#include "vlc_xml.h"
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/*****************************************************************************
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* Local prototypes
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*****************************************************************************/
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static int CreateFilter ( vlc_object_t * );
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static void DestroyFilter( vlc_object_t * );
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static subpicture_t *Filter( filter_t *, mtime_t );
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static int FetchRSS( filter_t * );
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static int pi_color_values[] = { 0xf0000000, 0x00000000, 0x00808080, 0x00C0C0C0,
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0x00FFFFFF, 0x00800000, 0x00FF0000, 0x00FF00FF, 0x00FFFF00,
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0x00808000, 0x00008000, 0x00008080, 0x0000FF00, 0x00800080,
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0x00000080, 0x000000FF, 0x0000FFFF};
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static char *ppsz_color_descriptions[] = { N_("Default"), N_("Black"),
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N_("Gray"), N_("Silver"), N_("White"), N_("Maroon"), N_("Red"),
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N_("Fuchsia"), N_("Yellow"), N_("Olive"), N_("Green"),
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N_("Teal"), N_("Lime"), N_("Purple"), N_("Navy"), N_("Blue"),
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N_("Aqua") };
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/*****************************************************************************
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* filter_sys_t: rss filter descriptor
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*****************************************************************************/
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struct rss_item_t
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{
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char *psz_title;
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char *psz_description;
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char *psz_link;
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};
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struct rss_feed_t
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{
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char *psz_title;
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char *psz_description;
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char *psz_link;
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int i_items;
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struct rss_item_t *p_items;
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};
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struct filter_sys_t
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{
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int i_xoff, i_yoff; /* offsets for the display string in the video window */
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int i_pos; /* permit relative positioning (top, bottom, left, right, center) */
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int i_speed;
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int i_length;
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char *psz_marquee; /* marquee string */
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int i_font_color, i_font_opacity, i_font_size; /* font control */
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mtime_t last_date;
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//vlc_bool_t b_need_update;
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char *psz_urls;
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int i_feeds;
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struct rss_feed_t *p_feeds;
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int i_cur_feed;
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int i_cur_item;
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int i_cur_char;
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};
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// <TODO>
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#define MSG_TEXT N_("RSS feed URLs")
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#define MSG_LONGTEXT N_("RSS feed comma(TODO ?) seperated URLs")
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#define SPEED_TEXT N_("RSS feed speed")
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#define SPEED_LONGTEXT N_("RSS feed speed (bigger is slower)")
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#define LENGTH_TEXT N_("RSS feed max number of chars displayed")
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#define LENGTH_LONGTEXT N_("RSS feed max number of chars displayed")
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// </TODO>
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#define POSX_TEXT N_("X offset, from left")
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#define POSX_LONGTEXT N_("X offset, from the left screen edge" )
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#define POSY_TEXT N_("Y offset, from the top")
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#define POSY_LONGTEXT N_("Y offset, down from the top" )
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#define OPACITY_TEXT N_("Opacity")
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#define OPACITY_LONGTEXT N_("The opacity (inverse of transparency) of " \
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"overlay text. 0 = transparent, 255 = totally opaque. " )
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#define SIZE_TEXT N_("Font size, pixels")
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#define SIZE_LONGTEXT N_("Specify the font size, in pixels, " \
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"with -1 = use freetype-fontsize" )
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#define COLOR_TEXT N_("Text Default Color")
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#define COLOR_LONGTEXT N_("The color of overlay text. 1 byte for each color, hexadecimal. " \
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"#000000 = all colors off, " \
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"0xFF0000 = just Red, 0xFFFFFF = all color on [White]" )
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#define POS_TEXT N_("Marquee position")
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#define POS_LONGTEXT N_( \
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"You can enforce the marquee position on the video " \
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"(0=center, 1=left, 2=right, 4=top, 8=bottom, you can " \
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"also use combinations of these values by adding them).")
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static int pi_pos_values[] = { 0, 1, 2, 4, 8, 5, 6, 9, 10 };
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static char *ppsz_pos_descriptions[] =
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{ N_("Center"), N_("Left"), N_("Right"), N_("Top"), N_("Bottom"),
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N_("Top-Left"), N_("Top-Right"), N_("Bottom-Left"), N_("Bottom-Right") };
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/*****************************************************************************
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* Module descriptor
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*****************************************************************************/
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vlc_module_begin();
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set_capability( "sub filter", 0 );
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set_shortname( N_("RSS" ));
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set_callbacks( CreateFilter, DestroyFilter );
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set_category( CAT_VIDEO );
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set_subcategory( SUBCAT_VIDEO_SUBPIC );
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add_string( "rss-urls", "rss", NULL, MSG_TEXT, MSG_LONGTEXT, VLC_FALSE );
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set_section( N_("Position"), NULL );
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add_integer( "marq-x", -1, NULL, POSX_TEXT, POSX_LONGTEXT, VLC_FALSE );
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add_integer( "marq-y", 0, NULL, POSY_TEXT, POSY_LONGTEXT, VLC_FALSE );
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add_integer( "marq-position", 5, NULL, POS_TEXT, POS_LONGTEXT, VLC_TRUE );
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set_section( N_("Font"), NULL );
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/* 5 sets the default to top [1] left [4] */
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change_integer_list( pi_pos_values, ppsz_pos_descriptions, 0 );
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add_integer_with_range( "marq-opacity", 255, 0, 255, NULL,
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OPACITY_TEXT, OPACITY_LONGTEXT, VLC_FALSE );
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add_integer( "marq-color", 0xFFFFFF, NULL, COLOR_TEXT, COLOR_LONGTEXT, VLC_TRUE );
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change_integer_list( pi_color_values, ppsz_color_descriptions, 0 );
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add_integer( "marq-size", -1, NULL, SIZE_TEXT, SIZE_LONGTEXT, VLC_FALSE );
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set_section( N_("Misc"), NULL );
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add_integer( "rss-speed", 100000, NULL, SPEED_TEXT, SPEED_LONGTEXT,
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VLC_FALSE );
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add_integer( "rss-length", 60, NULL, LENGTH_TEXT, LENGTH_LONGTEXT,
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VLC_FALSE );
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set_description( _("RSS feed display sub filter") );
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add_shortcut( "rss" );
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vlc_module_end();
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/*****************************************************************************
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* CreateFilter: allocates RSS video filter
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*****************************************************************************/
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static int CreateFilter( vlc_object_t *p_this )
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{
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filter_t *p_filter = (filter_t *)p_this;
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filter_sys_t *p_sys;
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int i_feed;
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/* Allocate structure */
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p_sys = p_filter->p_sys = malloc( sizeof( filter_sys_t ) );
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if( p_sys == NULL )
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{
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msg_Err( p_filter, "out of memory" );
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return VLC_ENOMEM;
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}
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p_sys->psz_urls = var_CreateGetString( p_filter, "rss-urls" );
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p_sys->i_cur_feed = 0;
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p_sys->i_cur_item = 0;
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p_sys->i_cur_char = 0;
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p_sys->i_speed = var_CreateGetInteger( p_filter, "rss-speed" );
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p_sys->i_length = var_CreateGetInteger( p_filter, "rss-length" );
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p_sys->psz_marquee = (char *)malloc( p_sys->i_length );
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p_sys->i_xoff = var_CreateGetInteger( p_filter, "marq-x" );
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p_sys->i_yoff = var_CreateGetInteger( p_filter, "marq-y" );
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p_sys->i_pos = var_CreateGetInteger( p_filter, "marq-position" );
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var_Create( p_filter, "marq-opacity", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
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p_sys->i_font_opacity = var_CreateGetInteger( p_filter, "marq-opacity" );
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p_sys->i_font_color = var_CreateGetInteger( p_filter, "marq-color" );
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p_sys->i_font_size = var_CreateGetInteger( p_filter, "marq-size" );
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if( FetchRSS( p_filter ) )
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{
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msg_Err( p_filter, "failed while fetching RSS ... too bad" );
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return VLC_EGENERIC;
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}
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if( p_sys->i_feeds == 0 ) return VLC_EGENERIC;
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for( i_feed=0; i_feed < p_sys->i_feeds; i_feed ++ )
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if( p_sys->p_feeds[i_feed].i_items == 0 )
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return VLC_EGENERIC;
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/* Misc init */
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p_filter->pf_sub_filter = Filter;
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p_sys->last_date = (mtime_t)0;
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//p_sys->b_need_update = VLC_TRUE;
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return VLC_SUCCESS;
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}
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/*****************************************************************************
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* DestroyFilter: destroy RSS video filter
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*****************************************************************************/
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static void DestroyFilter( vlc_object_t *p_this )
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{
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filter_t *p_filter = (filter_t *)p_this;
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filter_sys_t *p_sys = p_filter->p_sys;
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if( p_sys->psz_marquee ) free( p_sys->psz_marquee );
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free( p_sys->psz_urls );
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/* TODO : free RSS feeds stuff */
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free( p_sys );
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/* Delete the RSS variables */
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var_Destroy( p_filter, "rss-urls" );
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var_Destroy( p_filter, "rss-speed" );
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var_Destroy( p_filter, "rss-length" );
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var_Destroy( p_filter, "marq-x" );
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var_Destroy( p_filter, "marq-y" );
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var_Destroy( p_filter, "marq-position" );
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var_Destroy( p_filter, "marq-color");
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var_Destroy( p_filter, "marq-opacity");
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var_Destroy( p_filter, "marq-size");
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}
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/****************************************************************************
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* Filter: the whole thing
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****************************************************************************
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* This function outputs subpictures at regular time intervals.
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****************************************************************************/
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static subpicture_t *Filter( filter_t *p_filter, mtime_t date )
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{
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filter_sys_t *p_sys = p_filter->p_sys;
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subpicture_t *p_spu;
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video_format_t fmt;
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int i_feed, i_item;
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/* wait more for the 1st char */
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if( p_sys->last_date + ( p_sys->i_cur_char == 0 && p_sys->i_cur_item == 0 ? 5 : 1 ) * p_sys->i_speed > date ) return NULL;
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p_sys->last_date = date;
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p_sys->i_cur_char++;
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if( p_sys->p_feeds[p_sys->i_cur_feed].p_items[p_sys->i_cur_item].psz_title[p_sys->i_cur_char] == 0 )
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{
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p_sys->i_cur_char = 0;
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p_sys->i_cur_item++;
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if( p_sys->i_cur_item >= p_sys->p_feeds[p_sys->i_cur_feed].i_items )
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{
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p_sys->i_cur_item = 0;
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p_sys->i_cur_feed = (p_sys->i_cur_feed + 1)%p_sys->i_feeds;
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}
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}
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/* We always need an update
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if( p_sys->b_need_update == VLC_FALSE )
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{
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return NULL;
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}*/
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p_spu = p_filter->pf_sub_buffer_new( p_filter );
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if( !p_spu ) return NULL;
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memset( &fmt, 0, sizeof(video_format_t) );
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fmt.i_chroma = VLC_FOURCC('T','E','X','T');
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fmt.i_aspect = 0;
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fmt.i_width = 0;
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fmt.i_height = 0;
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fmt.i_x_offset = 0;
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fmt.i_y_offset = 0;
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p_spu->p_region = p_spu->pf_create_region( VLC_OBJECT(p_filter), &fmt );
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if( !p_spu->p_region )
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{
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p_filter->pf_sub_buffer_del( p_filter, p_spu );
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return NULL;
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}
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i_item = p_sys->i_cur_item;
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i_feed = p_sys->i_cur_feed;
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snprintf( p_sys->psz_marquee, p_sys->i_length, "%s : %s", p_sys->p_feeds[i_feed].psz_title, p_sys->p_feeds[i_feed].p_items[i_item].psz_title+p_sys->i_cur_char );
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while( strlen( p_sys->psz_marquee ) < (unsigned int)p_sys->i_length )
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{
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i_item++;
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if( i_item == p_sys->p_feeds[i_feed].i_items ) break;
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snprintf( strchr( p_sys->psz_marquee, 0 ), p_sys->i_length - strlen( p_sys->psz_marquee ), " - %s", p_sys->p_feeds[i_feed].p_items[i_item].psz_title );
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}
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p_spu->p_region->psz_text = strdup(p_sys->psz_marquee);
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p_spu->i_start = date;
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p_spu->i_stop = 0;
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p_spu->b_ephemer = VLC_TRUE;
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/* where to locate the string: */
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if( p_sys->i_xoff < 0 || p_sys->i_yoff < 0 )
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{ /* set to one of the 9 relative locations */
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p_spu->i_flags = p_sys->i_pos;
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p_spu->i_x = 0;
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p_spu->i_y = 0;
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p_spu->b_absolute = VLC_FALSE;
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}
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else
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{ /* set to an absolute xy, referenced to upper left corner */
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p_spu->i_flags = OSD_ALIGN_LEFT | OSD_ALIGN_TOP;
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p_spu->i_x = p_sys->i_xoff;
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p_spu->i_y = p_sys->i_yoff;
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p_spu->b_absolute = VLC_TRUE;
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}
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p_spu->i_height = 1;
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p_spu->p_region->i_text_color = p_sys->i_font_color;
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p_spu->p_region->i_text_alpha = 255 - p_sys->i_font_opacity;
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p_spu->p_region->i_text_size = p_sys->i_font_size;
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//p_sys->b_need_update = VLC_FALSE;
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return p_spu;
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}
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static int FetchRSS( filter_t *p_filter)
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{
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filter_sys_t *p_sys = p_filter->p_sys;
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stream_t *p_stream = NULL;
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xml_t *p_xml = NULL;
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xml_reader_t *p_xml_reader = NULL;
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char *psz_eltname = NULL;
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char *psz_eltvalue = NULL;
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char *psz_feed = NULL;
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char *psz_buffer = NULL;
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int i_feed;
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int i_item;
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int i_is_item;
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int i_int;
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p_sys->i_feeds = 1;
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i_int = 0;
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while( p_sys->psz_urls[i_int] != 0 )
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if( p_sys->psz_urls[i_int++] == ',' )
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p_sys->i_feeds++;
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p_sys->p_feeds = (struct rss_feed_t *)malloc( p_sys->i_feeds
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* sizeof( struct rss_feed_t ) );
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p_xml = xml_Create( p_filter );
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if( !p_xml )
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{
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msg_Err( p_filter, "Failed to open XML parser" );
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return 1;
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}
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psz_buffer = strdup( p_sys->psz_urls );
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for( i_feed = 0; i_feed < p_sys->i_feeds; i_feed++ )
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{
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struct rss_feed_t *p_feed = p_sys->p_feeds+i_feed;
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||||
if( psz_buffer == NULL ) break;
|
||||
if( psz_buffer[0] == 0 ) psz_buffer++;
|
||||
psz_feed = psz_buffer;
|
||||
psz_buffer = strchr( psz_buffer, ',' );
|
||||
if( psz_buffer != NULL ) psz_buffer[0] = 0;
|
||||
|
||||
p_feed->psz_title = NULL;
|
||||
p_feed->psz_description = NULL;
|
||||
p_feed->psz_link = NULL;
|
||||
p_feed->i_items = 0;
|
||||
p_feed->p_items = NULL;
|
||||
|
||||
msg_Dbg( p_filter, "Opening %s RSS feed ...", psz_feed );
|
||||
|
||||
p_stream = stream_UrlNew( p_filter, psz_feed );
|
||||
if( !p_stream )
|
||||
{
|
||||
msg_Err( p_filter, "Failed to open %s for reading", psz_feed );
|
||||
return 1;
|
||||
}
|
||||
|
||||
p_xml_reader = xml_ReaderCreate( p_xml, p_stream );
|
||||
if( !p_xml_reader )
|
||||
{
|
||||
msg_Err( p_filter, "Failed to open %s for parsing", psz_feed );
|
||||
return 1;
|
||||
}
|
||||
|
||||
i_item = 0;
|
||||
i_is_item = VLC_FALSE;
|
||||
|
||||
while( xml_ReaderRead( p_xml_reader ) == 1 )
|
||||
{
|
||||
switch( xml_ReaderNodeType( p_xml_reader ) )
|
||||
{
|
||||
// Error
|
||||
case -1:
|
||||
return 1;
|
||||
|
||||
case XML_READER_STARTELEM:
|
||||
if( psz_eltname ) free( psz_eltname );
|
||||
psz_eltname = xml_ReaderName( p_xml_reader );
|
||||
if( !psz_eltname )
|
||||
{
|
||||
return 1;
|
||||
}
|
||||
msg_Dbg( p_filter, "element name : %s", psz_eltname );
|
||||
if( !strcmp( psz_eltname, "item" ) )
|
||||
{
|
||||
i_is_item = VLC_TRUE;
|
||||
p_feed->i_items++;
|
||||
p_feed->p_items = (struct rss_item_t *)realloc( p_feed->p_items, p_feed->i_items * sizeof( struct rss_item_t ) );
|
||||
}
|
||||
break;
|
||||
|
||||
case XML_READER_ENDELEM:
|
||||
if( psz_eltname ) free( psz_eltname );
|
||||
psz_eltname = xml_ReaderName( p_xml_reader );
|
||||
if( !psz_eltname )
|
||||
{
|
||||
return 1;
|
||||
}
|
||||
msg_Dbg( p_filter, "element end : %s", psz_eltname );
|
||||
if( !strcmp( psz_eltname, "item" ) )
|
||||
{
|
||||
i_is_item = VLC_FALSE;
|
||||
i_item++;
|
||||
}
|
||||
free( psz_eltname ); psz_eltname = NULL;
|
||||
break;
|
||||
|
||||
case XML_READER_TEXT:
|
||||
psz_eltvalue = xml_ReaderValue( p_xml_reader );
|
||||
if( !psz_eltvalue )
|
||||
{
|
||||
return 1;
|
||||
}
|
||||
msg_Dbg( p_filter, " text : %s", psz_eltvalue );
|
||||
if( i_is_item == VLC_FALSE )
|
||||
{
|
||||
if( !strcmp( psz_eltname, "title" ) )
|
||||
{
|
||||
p_feed->psz_title = psz_eltvalue;
|
||||
}
|
||||
else if( !strcmp( psz_eltname, "link" ) )
|
||||
{
|
||||
p_feed->psz_link = psz_eltvalue;
|
||||
}
|
||||
else if( !strcmp( psz_eltname, "description" ) )
|
||||
{
|
||||
p_feed->psz_description = psz_eltvalue;
|
||||
}
|
||||
else
|
||||
{
|
||||
free( psz_eltvalue );
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
struct rss_item_t *p_item;
|
||||
p_item = p_feed->p_items+i_item;
|
||||
if( !strcmp( psz_eltname, "title" ) )
|
||||
{
|
||||
p_item->psz_title = psz_eltvalue;
|
||||
}
|
||||
else if( !strcmp( psz_eltname, "link" ) )
|
||||
{
|
||||
p_item->psz_link = psz_eltvalue;
|
||||
}
|
||||
else if( !strcmp( psz_eltname, "description" ) )
|
||||
{
|
||||
p_item->psz_description = psz_eltvalue;
|
||||
}
|
||||
else
|
||||
{
|
||||
free( psz_eltvalue );
|
||||
}
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if( p_xml_reader && p_xml ) xml_ReaderDelete( p_xml, p_xml_reader );
|
||||
if( p_stream ) stream_Delete( p_stream );
|
||||
}
|
||||
if( p_xml ) xml_Delete( p_xml );
|
||||
|
||||
return 0;
|
||||
}
|
Loading…
Reference in New Issue