1 /*****************************************************************************
2 * ram.c : RAM playlist format import
3 *****************************************************************************
4 * Copyright (C) 2009 the VideoLAN team
7 * Authors: Srikanth Raju <srikiraju@gmail.com>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
26 rtsp://helixserver.example.com/video1.rm?rpcontextheight=250
27 &rpcontextwidth=280&rpcontexturl="http://www.example.com/relatedinfo1.html"
28 rtsp://helixserver.example.com/video2.rm?rpurl="http://www.example.com/index.html"
29 rtsp://helixserver.example.com/sample1.smil?screensize=full
30 rtsp://helixserver.example.com/audio1.rm?start=55&end=1:25
31 rtsp://helixserver.example.com/introvid.rm?title="Introduction to Streaming Media
32 Production"&author="RealNetworks, Inc."©right="©2001, RealNetworks, Inc."
33 rtsp://helixserver.example.com/song1.rm?clipinfo="title=Artist of the Year|artist name=Your Name
34 Here|album name=My Debut|genre=Rock|copyright=2001|year=2001|comments=This one really
38 http://service.real.com/help/library/guides/realone/IntroGuide/HTML/htmfiles/ramsum.htm
39 http://service.real.com/help/library/guides/realone/IntroGuide/HTML/htmfiles/ramfile.htm
43 /*****************************************************************************
45 *****************************************************************************/
50 #include <vlc_common.h>
51 #include <vlc_demux.h>
52 #include <vlc_charset.h>
61 /*****************************************************************************
63 *****************************************************************************/
64 static int Demux( demux_t *p_demux);
65 static int Control( demux_t *p_demux, int i_query, va_list args );
66 static bool ContainsURL( demux_t *p_demux );
67 static void ParseClipInfo( char * psz_clipinfo, char **ppsz_artist, char **ppsz_title,
68 char **ppsz_album, char **ppsz_genre, char **ppsz_year,
69 char **ppsz_cdnum, char **ppsz_comments );
72 * Import_RAM: main import function
73 * @param p_this: this demux object
74 * @return VLC_SUCCESS if everything is okay
76 int Import_RAM( vlc_object_t *p_this )
78 demux_t *p_demux = (demux_t *)p_this;
79 const uint8_t *p_peek;
80 CHECK_PEEK( p_peek, 8 );
81 if(! demux_IsPathExtension( p_demux, ".ram" ) )
84 STANDARD_DEMUX_INIT_MSG( "found valid RAM playlist" );
85 p_demux->p_sys->psz_prefix = FindPrefix( p_demux );
91 * Frees up memory on module close
92 * @param p_this: this demux object
94 void Close_RAM( vlc_object_t *p_this )
96 demux_t *p_demux = (demux_t *)p_this;
97 free( p_demux->p_sys->psz_prefix );
98 free( p_demux->p_sys );
102 * Returns a UTF8 encoded version of the string
103 * @param str: input string
104 * @return pointer to UTF8 string
106 static inline char *MaybeFromLocaleDup (const char *str)
111 return IsUTF8 (str) ? strdup (str) : FromLocaleDup (str);
115 * Converts a string to UTF8 encoding
116 * @param str: input string
118 static inline void MaybeFromLocaleRep (char **str)
120 char *const orig_str = *str;
122 if ((orig_str != NULL) && !IsUTF8 (orig_str))
124 *str = FromLocaleDup (orig_str);
130 * Skips blanks in a given buffer
131 * @param s: input string
132 * @param i_strlen: length of the buffer
134 static char *SkipBlanks(char *s, size_t i_strlen )
136 while( i_strlen > 0 ) {
154 * Converts a time of format hour:minutes:sec.fraction to seconds
155 * @param s: input string
156 * @param i_strlen: length of the buffer
157 * @return time in seconds
159 static int ParseTime(char *s, size_t i_strlen)
161 // need to parse hour:minutes:sec.fraction string
164 const char *end = s + i_strlen;
165 // skip leading spaces if any
166 s = SkipBlanks(s, i_strlen);
169 while( (s < end) && isdigit(*s) )
171 int newval = val*10 + (*s - '0');
182 s = SkipBlanks(s, end-s);
186 s = SkipBlanks(s, end-s);
187 result = result * 60;
189 while( (s < end) && isdigit(*s) )
191 int newval = val*10 + (*s - '0');
202 s = SkipBlanks(s, end-s);
206 s = SkipBlanks(s, end-s);
207 result = result * 60;
209 while( (s < end) && isdigit(*s) )
211 int newval = val*10 + (*s - '0');
222 // TODO: one day, we may need to parse fraction for sub-second resolution
229 * Main demux callback function
230 * @param p_demux: this demux object
232 static int Demux( demux_t *p_demux )
235 char *psz_name = NULL;
236 char *psz_artist = NULL, *psz_album = NULL, *psz_genre = NULL, *psz_year = NULL;
237 char *psz_author = NULL, *psz_title = NULL, *psz_copyright = NULL, *psz_cdnum = NULL, *psz_comments = NULL;
238 int i_parsed_duration = 0;
239 mtime_t i_duration = -1;
240 const char **ppsz_options = NULL;
241 int i_options = 0, i_start = 0, i_stop = 0;
242 bool b_cleanup = false;
243 input_item_t *p_input;
247 psz_line = stream_ReadLine( p_demux->s );
250 char *psz_parse = psz_line;
252 /* Skip leading tabs and spaces */
253 while( *psz_parse == ' ' || *psz_parse == '\t' ||
254 *psz_parse == '\n' || *psz_parse == '\r' ) psz_parse++;
256 if( *psz_parse == '#' )
258 /* Ignore comments */
260 else if( *psz_parse )
262 char *psz_mrl, *psz_option_start, *psz_option_next, *psz_temp_mrl, *psz_option;
263 char *psz_param, *psz_value;
264 if( !psz_name || !*psz_name )
266 /* Default filename as name for relative entries
267 TODO: Currently not used. Either remove or use */
268 psz_name = MaybeFromLocaleDup( psz_parse );
271 /* Get the MRL from the file. Note that this might contain parameters of form ?param1=value1¶m2=value2 in a RAM file */
272 psz_mrl = ProcessMRL( psz_parse, p_demux->p_sys->psz_prefix );
273 MaybeFromLocaleRep( &psz_mrl );
276 if ( !psz_mrl ) goto error;
278 /* We have the MRL, now we have to check for options and parse them from MRL */
279 psz_temp_mrl = strdup( psz_mrl );
280 psz_option_start = strchr( psz_temp_mrl, '?' ); /* Look for start of options */
281 if( psz_option_start )
284 psz_option_next = psz_option_start;
285 while( 1 ) /* Process each option */
287 /* Look for end of first option which maybe a & or \0 */
288 psz_option_start = psz_option_next;
289 psz_option_next = strchr( psz_option_start, '&' );
290 if( psz_option_next )
292 *psz_option_next = '\0';
296 psz_option_next = strchr( psz_option_start, '\0' );
297 /* Quit if options are over */
298 if( psz_option_next == psz_option_start )
300 psz_option = MaybeFromLocaleDup( psz_option_start );
301 /* If this option is screwed up, try the next one */
305 /* Parse out param and value */
306 psz_param = psz_option;
307 if( strchr( psz_option, '=' ) )
309 psz_value = strchr( psz_option, '=' ) + 1;
310 *(strchr( psz_option, '=' )) = '\0';
315 /* Take action based on parameter value in the below if else structure */
316 /* TODO: Remove any quotes surrounding values if required */
317 if( !strcmp( psz_param, "clipinfo" ) )
319 ParseClipInfo( psz_value, &psz_artist, &psz_title,
320 &psz_album, &psz_genre, &psz_year,
321 &psz_cdnum, &psz_comments ); /* clipinfo has various sub parameters, which is parsed by this function */
323 else if( !strcmp( psz_param, "author" ) )
324 psz_author = strdup(psz_value);
325 else if( !strcmp( psz_param, "start" ) )
327 i_start = ParseTime( strdup( psz_value ),strlen( psz_value ) );
331 if( asprintf( &temp, ":start-time=%d", i_start ) == -1 )
334 INSERT_ELEM( ppsz_options, i_options, i_options, temp );
337 else if( !strcmp( psz_param, "end" ) )
339 i_stop = ParseTime( strdup( psz_value ), strlen( psz_value ) );
343 if( asprintf( &temp, ":stop-time=%d", i_stop ) == -1 )
346 INSERT_ELEM( ppsz_options, i_options, i_options, temp );
349 else if( !strcmp( psz_param, "title" ) )
350 psz_title = strdup(psz_value);
351 else if( !strcmp( psz_param, "copyright" ) )
352 psz_copyright = strdup(psz_value);
354 { /* TODO: insert option anyway? Currently ignores*/
355 /* INSERT_ELEM( ppsz_options, i_options, i_options, psz_option ); */
361 *(strchr( psz_mrl, '?' )) = '\0'; /* Remove options from MRL because VLC can't get the file otherwise */
364 free( psz_temp_mrl );
366 /* Create the input item and pump in all the options into playlist item */
367 p_input = input_item_NewExt( p_demux, psz_mrl, psz_title, i_options, ppsz_options, 0, i_duration );
369 if( psz_artist && *psz_artist ) input_item_SetArtist( p_input, psz_artist );
370 if( psz_author && *psz_author ) input_item_SetPublisher( p_input, psz_author );
371 if( psz_title && *psz_title ) input_item_SetTitle( p_input, psz_title );
372 if( psz_copyright && *psz_copyright ) input_item_SetCopyright( p_input, psz_copyright );
373 if( psz_album && *psz_album ) input_item_SetAlbum( p_input, psz_album );
374 if( psz_genre && *psz_genre ) input_item_SetGenre( p_input, psz_genre );
375 if( psz_year && *psz_year ) input_item_SetDate( p_input, psz_copyright );
376 if( psz_cdnum && *psz_cdnum ) input_item_SetTrackNum( p_input, psz_cdnum );
377 if( psz_comments && *psz_comments ) input_item_SetDescription( p_input, psz_comments );
379 input_item_AddSubItem( p_current_input, p_input );
380 vlc_gc_decref( p_input );
385 /* Fetch another line */
387 psz_line = stream_ReadLine( p_demux->s );
388 if( !psz_line ) b_cleanup = true;
393 while( i_options-- ) free( (char*)ppsz_options[i_options] );
394 FREENULL( ppsz_options );
395 FREENULL( psz_name );
396 FREENULL( psz_artist );
397 FREENULL( psz_title );
398 FREENULL( psz_author );
399 FREENULL( psz_copyright );
400 FREENULL( psz_album );
401 FREENULL( psz_genre );
402 FREENULL( psz_year );
403 FREENULL( psz_cdnum );
404 FREENULL( psz_comments );
406 i_parsed_duration = 0;
413 HANDLE_PLAY_AND_RELEASE;
414 var_Destroy( p_demux, "m3u-extvlcopt" );
415 return 0; /* Needed for correct operation of go back */
419 * @param p_demux: This object
421 * @param args: List of arguments
423 static int Control( demux_t *p_demux, int i_query, va_list args )
425 VLC_UNUSED(p_demux); VLC_UNUSED(i_query); VLC_UNUSED(args);
430 * Parses clipinfo parameter
431 * @param psz_clipinfo: string containing the clipinfo parameter along with quotes
432 * @param ppsz_artist: Buffer to store artist name
433 * @param ppsz_title: Buffer to store title
434 * @param ppsz_album: Buffer to store album
435 * @param ppsz_genre: Buffer to store genre
436 * @param ppsz_year: Buffer to store year
437 * @param ppsz_cdnum: Buffer to store cdnum
438 * @param ppsz_comments: Buffer to store comments
440 static void ParseClipInfo( char *psz_clipinfo, char **ppsz_artist, char **ppsz_title,
441 char **ppsz_album, char **ppsz_genre, char **ppsz_year,
442 char **ppsz_cdnum, char **ppsz_comments )
444 char *psz_option_next, *psz_option_start, *psz_param, *psz_value, *psz_suboption;
445 char *psz_temp_clipinfo = strdup( psz_clipinfo );
446 psz_option_start = psz_clipinfo;
447 psz_option_start = strchr( psz_temp_clipinfo, '"' );
448 if( !psz_option_start )
452 psz_option_next = psz_option_start;
453 while( 1 ) /* Process each sub option */
455 /* Get the sub option */
456 psz_option_start = psz_option_next;
457 psz_option_next = strchr( psz_option_start, '|' );
458 if( psz_option_next )
459 *psz_option_next = '\0';
461 psz_option_next = strchr( psz_option_start, '"' );
462 if( psz_option_next )
463 *psz_option_next = '\0';
465 psz_option_next = strchr( psz_option_start, '\0' );
466 if( psz_option_next == psz_option_start )
469 psz_suboption = MaybeFromLocaleDup( psz_option_start );
473 /* Parse out param and value */
474 psz_param = psz_suboption;
475 if( strchr( psz_suboption, '=' ) )
477 psz_value = strchr( psz_suboption, '=' ) + 1;
478 *( strchr( psz_suboption, '=' ) ) = '\0';
483 if( !strcmp( psz_param, "artist name" ) )
484 *ppsz_artist = strdup( psz_value );
485 else if( !strcmp( psz_param, "title" ) )
486 *ppsz_title = strdup( psz_value );
487 else if( !strcmp( psz_param, "album name" ) )
488 *ppsz_album = strdup( psz_value );
489 else if( !strcmp( psz_param, "genre" ) )
490 *ppsz_genre = strdup( psz_value );
491 else if( !strcmp( psz_param, "year" ) )
492 *ppsz_year = strdup( psz_value );
493 else if( !strcmp( psz_param, "cdnum" ) )
494 *ppsz_cdnum = strdup( psz_value );
495 else if( !strcmp( psz_param, "comments" ) )
496 *ppsz_comments = strdup( psz_value );
498 free( psz_suboption );
502 free( psz_temp_clipinfo );