--- /dev/null
+/*****************************************************************************
+ * ram.c : RAM playlist format import
+ *****************************************************************************
+ * Copyright (C) 2009 the VideoLAN team
+ * $Id$
+ *
+ * Authors: Srikanth Raju <srikiraju@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ *****************************************************************************/
+
+/*
+An example:
+rtsp://helixserver.example.com/video1.rm?rpcontextheight=250
+&rpcontextwidth=280&rpcontexturl="http://www.example.com/relatedinfo1.html"
+rtsp://helixserver.example.com/video2.rm?rpurl="http://www.example.com/index.html"
+rtsp://helixserver.example.com/sample1.smil?screensize=full
+rtsp://helixserver.example.com/audio1.rm?start=55&end=1:25
+rtsp://helixserver.example.com/introvid.rm?title="Introduction to Streaming Media
+Production"&author="RealNetworks, Inc."©right="©2001, RealNetworks, Inc."
+rtsp://helixserver.example.com/song1.rm?clipinfo="title=Artist of the Year|artist name=Your Name
+Here|album name=My Debut|genre=Rock|copyright=2001|year=2001|comments=This one really
+knows how to rock!"
+
+See also:
+http://service.real.com/help/library/guides/realone/IntroGuide/HTML/htmfiles/ramsum.htm
+http://service.real.com/help/library/guides/realone/IntroGuide/HTML/htmfiles/ramfile.htm
+*/
+
+
+/*****************************************************************************
+ * Preamble
+ *****************************************************************************/
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <vlc_common.h>
+#include <vlc_demux.h>
+#include <vlc_charset.h>
+
+#include "playlist.h"
+
+struct demux_sys_t
+{
+ char *psz_prefix;
+};
+
+/*****************************************************************************
+ * Local prototypes
+ *****************************************************************************/
+static int Demux( demux_t *p_demux);
+static int Control( demux_t *p_demux, int i_query, va_list args );
+static bool ContainsURL( demux_t *p_demux );
+static void ParseClipInfo( char * psz_clipinfo, char **ppsz_artist, char **ppsz_title,
+ char **ppsz_album, char **ppsz_genre, char **ppsz_year,
+ char **ppsz_cdnum, char **ppsz_comments );
+
+/**
+ * Import_RAM: main import function
+ * @param p_this: this demux object
+ * @return VLC_SUCCESS if everything is okay
+ */
+int Import_RAM( vlc_object_t *p_this )
+{
+ demux_t *p_demux = (demux_t *)p_this;
+ const uint8_t *p_peek;
+ CHECK_PEEK( p_peek, 8 );
+ if(! demux_IsPathExtension( p_demux, ".ram" ) )
+ return VLC_EGENERIC;
+
+ STANDARD_DEMUX_INIT_MSG( "found valid RAM playlist" );
+ p_demux->p_sys->psz_prefix = FindPrefix( p_demux );
+
+ return VLC_SUCCESS;
+}
+
+/**
+ * Frees up memory on module close
+ * @param p_this: this demux object
+ */
+void Close_RAM( vlc_object_t *p_this )
+{
+ demux_t *p_demux = (demux_t *)p_this;
+ free( p_demux->p_sys->psz_prefix );
+ free( p_demux->p_sys );
+}
+
+/**
+ * Returns a UTF8 encoded version of the string
+ * @param str: input string
+ * @return pointer to UTF8 string
+ */
+static inline char *MaybeFromLocaleDup (const char *str)
+{
+ if (str == NULL)
+ return NULL;
+
+ return IsUTF8 (str) ? strdup (str) : FromLocaleDup (str);
+}
+
+/**
+ * Converts a string to UTF8 encoding
+ * @param str: input string
+ */
+static inline void MaybeFromLocaleRep (char **str)
+{
+ char *const orig_str = *str;
+
+ if ((orig_str != NULL) && !IsUTF8 (orig_str))
+ {
+ *str = FromLocaleDup (orig_str);
+ free (orig_str);
+ }
+}
+
+/**
+ * Skips blanks in a given buffer
+ * @param s: input string
+ * @param i_strlen: length of the buffer
+ */
+static char *SkipBlanks(char *s, size_t i_strlen )
+{
+ while( i_strlen > 0 ) {
+ switch( *s )
+ {
+ case ' ':
+ case '\t':
+ case '\r':
+ case '\n':
+ --i_strlen;
+ ++s;
+ break;
+ default:
+ i_strlen = 0;
+ }
+ }
+ return s;
+}
+
+/**
+ * Converts a time of format hour:minutes:sec.fraction to seconds
+ * @param s: input string
+ * @param i_strlen: length of the buffer
+ * @return time in seconds
+ */
+static int ParseTime(char *s, size_t i_strlen)
+{
+ // need to parse hour:minutes:sec.fraction string
+ int result = 0;
+ int val;
+ const char *end = s + i_strlen;
+ // skip leading spaces if any
+ s = SkipBlanks(s, i_strlen);
+
+ val = 0;
+ while( (s < end) && isdigit(*s) )
+ {
+ int newval = val*10 + (*s - '0');
+ if( newval < val )
+ {
+ // overflow
+ val = 0;
+ break;
+ }
+ val = newval;
+ ++s;
+ }
+ result = val;
+ s = SkipBlanks(s, end-s);
+ if( *s == ':' )
+ {
+ ++s;
+ s = SkipBlanks(s, end-s);
+ result = result * 60;
+ val = 0;
+ while( (s < end) && isdigit(*s) )
+ {
+ int newval = val*10 + (*s - '0');
+ if( newval < val )
+ {
+ // overflow
+ val = 0;
+ break;
+ }
+ val = newval;
+ ++s;
+ }
+ result += val;
+ s = SkipBlanks(s, end-s);
+ if( *s == ':' )
+ {
+ ++s;
+ s = SkipBlanks(s, end-s);
+ result = result * 60;
+ val = 0;
+ while( (s < end) && isdigit(*s) )
+ {
+ int newval = val*10 + (*s - '0');
+ if( newval < val )
+ {
+ // overflow
+ val = 0;
+ break;
+ }
+ val = newval;
+ ++s;
+ }
+ result += val;
+ // TODO: one day, we may need to parse fraction for sub-second resolution
+ }
+ }
+ return result;
+}
+
+/**
+ * Main demux callback function
+ * @param p_demux: this demux object
+ */
+static int Demux( demux_t *p_demux )
+{
+ char *psz_line;
+ char *psz_name = NULL;
+ char *psz_artist = NULL, *psz_album = NULL, *psz_genre = NULL, *psz_year = NULL;
+ char *psz_author = NULL, *psz_title = NULL, *psz_copyright = NULL, *psz_cdnum = NULL, *psz_comments = NULL;
+ int i_parsed_duration = 0;
+ mtime_t i_duration = -1;
+ const char **ppsz_options = NULL;
+ int i_options = 0, i_start = 0, i_stop = 0;
+ bool b_cleanup = false;
+ input_item_t *p_input;
+
+ INIT_PLAYLIST_STUFF;
+
+ psz_line = stream_ReadLine( p_demux->s );
+ while( psz_line )
+ {
+ char *psz_parse = psz_line;
+
+ /* Skip leading tabs and spaces */
+ while( *psz_parse == ' ' || *psz_parse == '\t' ||
+ *psz_parse == '\n' || *psz_parse == '\r' ) psz_parse++;
+
+ if( *psz_parse == '#' )
+ {
+ /* Ignore comments */
+ }
+ else if( *psz_parse )
+ {
+ char *psz_mrl, *psz_option_start, *psz_option_next, *psz_temp_mrl, *psz_option;
+ char *psz_param, *psz_value;
+ if( !psz_name || !*psz_name )
+ {
+ /* Default filename as name for relative entries
+ TODO: Currently not used. Either remove or use */
+ psz_name = MaybeFromLocaleDup( psz_parse );
+ }
+
+ /* Get the MRL from the file. Note that this might contain parameters of form ?param1=value1¶m2=value2 in a RAM file */
+ psz_mrl = ProcessMRL( psz_parse, p_demux->p_sys->psz_prefix );
+ MaybeFromLocaleRep( &psz_mrl );
+
+ b_cleanup = true;
+ if ( !psz_mrl ) goto error;
+
+ /* We have the MRL, now we have to check for options and parse them from MRL */
+ psz_temp_mrl = strdup( psz_mrl );
+ psz_option_start = strchr( psz_temp_mrl, '?' ); /* Look for start of options */
+ if( psz_option_start )
+ {
+ psz_option_start++;
+ psz_option_next = psz_option_start;
+ while( 1 ) /* Process each option */
+ {
+ /* Look for end of first option which maybe a & or \0 */
+ psz_option_start = psz_option_next;
+ psz_option_next = strchr( psz_option_start, '&' );
+ if( psz_option_next )
+ {
+ *psz_option_next = '\0';
+ psz_option_next++;
+ }
+ else
+ psz_option_next = strchr( psz_option_start, '\0' );
+ /* Quit if options are over */
+ if( psz_option_next == psz_option_start )
+ break;
+ psz_option = MaybeFromLocaleDup( psz_option_start );
+ /* If this option is screwed up, try the next one */
+ if( !psz_option )
+ continue;
+
+ /* Parse out param and value */
+ psz_param = psz_option;
+ if( strchr( psz_option, '=' ) )
+ {
+ psz_value = strchr( psz_option, '=' ) + 1;
+ *(strchr( psz_option, '=' )) = '\0';
+ }
+ else
+ break;
+
+ /* Take action based on parameter value in the below if else structure */
+ /* TODO: Remove any quotes surrounding values if required */
+ if( !strcmp( psz_param, "clipinfo" ) )
+ {
+ ParseClipInfo( psz_value, &psz_artist, &psz_title,
+ &psz_album, &psz_genre, &psz_year,
+ &psz_cdnum, &psz_comments ); /* clipinfo has various sub parameters, which is parsed by this function */
+ }
+ else if( !strcmp( psz_param, "author" ) )
+ psz_author = strdup(psz_value);
+ else if( !strcmp( psz_param, "start" ) )
+ {
+ i_start = ParseTime( strdup( psz_value ),strlen( psz_value ) );
+ char * temp = NULL;
+ if( i_start )
+ {
+ if( asprintf( &temp, ":start-time=%d", i_start ) == -1 )
+ *(temp) = NULL;
+ if( temp && *temp )
+ INSERT_ELEM( ppsz_options, i_options, i_options, temp );
+ }
+ }
+ else if( !strcmp( psz_param, "end" ) )
+ {
+ i_stop = ParseTime( strdup( psz_value ), strlen( psz_value ) );
+ char * temp = NULL;
+ if( i_stop )
+ {
+ if( asprintf( &temp, ":stop-time=%d", i_stop ) == -1 )
+ *(temp) = NULL;
+ if( temp && *temp )
+ INSERT_ELEM( ppsz_options, i_options, i_options, temp );
+ }
+ }
+ else if( !strcmp( psz_param, "title" ) )
+ psz_title = strdup(psz_value);
+ else if( !strcmp( psz_param, "copyright" ) )
+ psz_copyright = strdup(psz_value);
+ else
+ { /* TODO: insert option anyway? Currently ignores*/
+ /* INSERT_ELEM( ppsz_options, i_options, i_options, psz_option ); */
+ }
+
+ free( psz_option );
+ }
+
+ *(strchr( psz_mrl, '?' )) = '\0'; /* Remove options from MRL because VLC can't get the file otherwise */
+ }
+
+ free( psz_temp_mrl );
+
+ /* Create the input item and pump in all the options into playlist item */
+ p_input = input_item_NewExt( p_demux, psz_mrl, psz_title, i_options, ppsz_options, 0, i_duration );
+
+ if( psz_artist && *psz_artist ) input_item_SetArtist( p_input, psz_artist );
+ if( psz_author && *psz_author ) input_item_SetPublisher( p_input, psz_author );
+ if( psz_title && *psz_title ) input_item_SetTitle( p_input, psz_title );
+ if( psz_copyright && *psz_copyright ) input_item_SetCopyright( p_input, psz_copyright );
+ if( psz_album && *psz_album ) input_item_SetAlbum( p_input, psz_album );
+ if( psz_genre && *psz_genre ) input_item_SetGenre( p_input, psz_genre );
+ if( psz_year && *psz_year ) input_item_SetDate( p_input, psz_copyright );
+ if( psz_cdnum && *psz_cdnum ) input_item_SetTrackNum( p_input, psz_cdnum );
+ if( psz_comments && *psz_comments ) input_item_SetDescription( p_input, psz_comments );
+
+ input_item_AddSubItem( p_current_input, p_input );
+ vlc_gc_decref( p_input );
+ free( psz_mrl );
+ }
+
+ error:
+ /* Fetch another line */
+ free( psz_line );
+ psz_line = stream_ReadLine( p_demux->s );
+ if( !psz_line ) b_cleanup = true;
+
+ if( b_cleanup )
+ {
+ /* Cleanup state */
+ while( i_options-- ) free( (char*)ppsz_options[i_options] );
+ FREENULL( ppsz_options );
+ FREENULL( psz_name );
+ FREENULL( psz_artist );
+ FREENULL( psz_title );
+ FREENULL( psz_author );
+ FREENULL( psz_copyright );
+ FREENULL( psz_album );
+ FREENULL( psz_genre );
+ FREENULL( psz_year );
+ FREENULL( psz_cdnum );
+ FREENULL( psz_comments );
+ i_options = 0;
+ i_parsed_duration = 0;
+ i_duration = -1;
+ i_start = 0;
+ i_stop = 0;
+ b_cleanup = false;
+ }
+ }
+ HANDLE_PLAY_AND_RELEASE;
+ var_Destroy( p_demux, "m3u-extvlcopt" );
+ return 0; /* Needed for correct operation of go back */
+}
+
+/**
+ * @param p_demux: This object
+ * @param i_query:
+ * @param args: List of arguments
+ */
+static int Control( demux_t *p_demux, int i_query, va_list args )
+{
+ VLC_UNUSED(p_demux); VLC_UNUSED(i_query); VLC_UNUSED(args);
+ return VLC_EGENERIC;
+}
+
+/**
+ * Parses clipinfo parameter
+ * @param psz_clipinfo: string containing the clipinfo parameter along with quotes
+ * @param ppsz_artist: Buffer to store artist name
+ * @param ppsz_title: Buffer to store title
+ * @param ppsz_album: Buffer to store album
+ * @param ppsz_genre: Buffer to store genre
+ * @param ppsz_year: Buffer to store year
+ * @param ppsz_cdnum: Buffer to store cdnum
+ * @param ppsz_comments: Buffer to store comments
+ */
+static void ParseClipInfo( char *psz_clipinfo, char **ppsz_artist, char **ppsz_title,
+ char **ppsz_album, char **ppsz_genre, char **ppsz_year,
+ char **ppsz_cdnum, char **ppsz_comments )
+{
+ char *psz_option_next, *psz_option_start, *psz_param, *psz_value, *psz_suboption;
+ char *psz_temp_clipinfo = strdup( psz_clipinfo );
+ psz_option_start = psz_clipinfo;
+ psz_option_start = strchr( psz_temp_clipinfo, '"' );
+ if( !psz_option_start )
+ return;
+
+ psz_option_start++;
+ psz_option_next = psz_option_start;
+ while( 1 ) /* Process each sub option */
+ {
+ /* Get the sub option */
+ psz_option_start = psz_option_next;
+ psz_option_next = strchr( psz_option_start, '|' );
+ if( psz_option_next )
+ *psz_option_next = '\0';
+ else
+ psz_option_next = strchr( psz_option_start, '"' );
+ if( psz_option_next )
+ *psz_option_next = '\0';
+ else
+ psz_option_next = strchr( psz_option_start, '\0' );
+ if( psz_option_next == psz_option_start )
+ break;
+
+ psz_suboption = MaybeFromLocaleDup( psz_option_start );
+ if( !psz_suboption )
+ break;
+
+ /* Parse out param and value */
+ psz_param = psz_suboption;
+ if( strchr( psz_suboption, '=' ) )
+ {
+ psz_value = strchr( psz_suboption, '=' ) + 1;
+ *( strchr( psz_suboption, '=' ) ) = '\0';
+ }
+ else
+ break;
+ /* Put into args */
+ if( !strcmp( psz_param, "artist name" ) )
+ *ppsz_artist = strdup( psz_value );
+ else if( !strcmp( psz_param, "title" ) )
+ *ppsz_title = strdup( psz_value );
+ else if( !strcmp( psz_param, "album name" ) )
+ *ppsz_album = strdup( psz_value );
+ else if( !strcmp( psz_param, "genre" ) )
+ *ppsz_genre = strdup( psz_value );
+ else if( !strcmp( psz_param, "year" ) )
+ *ppsz_year = strdup( psz_value );
+ else if( !strcmp( psz_param, "cdnum" ) )
+ *ppsz_cdnum = strdup( psz_value );
+ else if( !strcmp( psz_param, "comments" ) )
+ *ppsz_comments = strdup( psz_value );
+
+ free( psz_suboption );
+ psz_option_next++;
+ }
+
+ free( psz_temp_clipinfo );
+}
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