1 /*****************************************************************************
3 *****************************************************************************
4 * Copyright (C) 2001, 2002 the VideoLAN team
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
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., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
30 #include <vlc/input.h>
32 #include "vlc_playlist.h"
46 /*****************************************************************************
48 *****************************************************************************/
49 int E_(MMSHOpen) ( access_t * );
50 void E_(MMSHClose) ( access_t * );
52 static int Read( access_t *, uint8_t *, int );
53 static int ReadRedirect( access_t *, uint8_t *, int );
54 static int Seek( access_t *, int64_t );
55 static int Control( access_t *, int, va_list );
57 static int Describe( access_t *, char **ppsz_location );
58 static int Start( access_t *, int64_t );
59 static void Stop( access_t * );
60 static int GetPacket( access_t *, chunk_t * );
62 /****************************************************************************
63 * Open: connect to ftp server and ask for file
64 ****************************************************************************/
65 int E_(MMSHOpen)( access_t *p_access )
68 char *psz_location = NULL;
73 p_access->pf_read = Read;
74 p_access->pf_block = NULL;
75 p_access->pf_control = Control;
76 p_access->pf_seek = Seek;
77 p_access->info.i_update = 0;
78 p_access->info.i_size = 0;
79 p_access->info.i_pos = 0;
80 p_access->info.b_eof = VLC_FALSE;
81 p_access->info.i_title = 0;
82 p_access->info.i_seekpoint = 0;
83 p_access->p_sys = p_sys = malloc( sizeof( access_sys_t ) );
84 memset( p_sys, 0, sizeof( access_sys_t ) );
85 p_sys->i_proto= MMS_PROTO_HTTP;
89 /* open a tcp connection */
90 vlc_UrlParse( &p_sys->url, p_access->psz_path, 0 );
91 if( p_sys->url.psz_host == NULL || *p_sys->url.psz_host == '\0' )
93 msg_Err( p_access, "invalid host" );
94 vlc_UrlClean( &p_sys->url );
98 if( p_sys->url.i_port <= 0 )
99 p_sys->url.i_port = 80;
101 if( Describe( p_access, &psz_location ) )
103 vlc_UrlClean( &p_sys->url );
107 /* Handle redirection */
108 if( psz_location && *psz_location )
110 playlist_t * p_playlist = vlc_object_find( p_access, VLC_OBJECT_PLAYLIST, FIND_PARENT );
112 msg_Dbg( p_access, "redirection to %s", psz_location );
116 msg_Err( p_access, "redirection failed: can't find playlist" );
117 free( psz_location );
120 p_playlist->pp_items[p_playlist->i_index]->b_autodeletion = VLC_TRUE;
121 playlist_Add( p_playlist, psz_location, psz_location,
122 PLAYLIST_INSERT | PLAYLIST_GO,
123 p_playlist->i_index + 1 );
124 vlc_object_release( p_playlist );
126 free( psz_location );
128 p_access->pf_read = ReadRedirect;
133 if( Start( p_access, 0 ) )
135 msg_Err( p_access, "cannot start stream" );
136 free( p_sys->p_header );
137 vlc_UrlClean( &p_sys->url );
142 if( !p_sys->b_broadcast )
144 p_access->info.i_size = p_sys->asfh.i_file_size;
150 /*****************************************************************************
151 * Close: free unused data structures
152 *****************************************************************************/
153 void E_( MMSHClose )( access_t *p_access )
155 access_sys_t *p_sys = p_access->p_sys;
161 /*****************************************************************************
163 *****************************************************************************/
164 static int Control( access_t *p_access, int i_query, va_list args )
166 access_sys_t *p_sys = p_access->p_sys;
175 case ACCESS_CAN_SEEK:
176 pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t* );
177 *pb_bool = !p_sys->b_broadcast;
180 case ACCESS_CAN_FASTSEEK:
181 case ACCESS_CAN_PAUSE:
182 pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t* );
183 *pb_bool = VLC_FALSE;
186 case ACCESS_CAN_CONTROL_PACE:
187 pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t* );
189 #if 0 /* Disable for now until we have a clock synchro algo
190 * which works with something else than MPEG over UDP */
191 *pb_bool = VLC_FALSE;
198 pi_int = (int*)va_arg( args, int * );
199 *pi_int = 3 * p_sys->asfh.i_min_data_packet_size;
202 case ACCESS_GET_PTS_DELAY:
203 pi_64 = (int64_t*)va_arg( args, int64_t * );
204 *pi_64 = (int64_t)var_GetInteger( p_access, "mms-caching" ) * I64C(1000);
207 case ACCESS_GET_PRIVATE_ID_STATE:
208 i_int = (int)va_arg( args, int );
209 pb_bool = (vlc_bool_t *)va_arg( args, vlc_bool_t * );
211 if( i_int < 0 || i_int > 127 )
213 *pb_bool = p_sys->asfh.stream[i_int].i_selected ? VLC_TRUE : VLC_FALSE;
217 case ACCESS_SET_PAUSE_STATE:
218 case ACCESS_GET_TITLE_INFO:
219 case ACCESS_SET_TITLE:
220 case ACCESS_SET_SEEKPOINT:
221 case ACCESS_SET_PRIVATE_ID_STATE:
225 msg_Warn( p_access, "unimplemented query in control" );
232 /*****************************************************************************
233 * Seek: try to go at the right place
234 *****************************************************************************/
235 static int Seek( access_t *p_access, int64_t i_pos )
237 access_sys_t *p_sys = p_access->p_sys;
242 msg_Dbg( p_access, "seeking to "I64Fd, i_pos );
244 i_packet = ( i_pos - p_sys->i_header ) / p_sys->asfh.i_min_data_packet_size;
245 i_offset = ( i_pos - p_sys->i_header ) % p_sys->asfh.i_min_data_packet_size;
248 Start( p_access, i_packet * p_sys->asfh.i_min_data_packet_size );
250 while( !p_access->b_die )
252 if( GetPacket( p_access, &ck ) )
256 if( ck.i_type != 0x4824 )
259 msg_Warn( p_access, "skipping header" );
262 p_access->info.i_pos = i_pos;
263 p_access->info.b_eof = VLC_FALSE;
264 p_sys->i_packet_used += i_offset;
269 /*****************************************************************************
271 *****************************************************************************/
272 static int ReadRedirect( access_t *p_access, uint8_t *p, int i_len )
277 /*****************************************************************************
279 *****************************************************************************/
280 static int Read( access_t *p_access, uint8_t *p_buffer, int i_len )
282 access_sys_t *p_sys = p_access->p_sys;
286 if( p_access->info.b_eof )
289 while( i_data < (size_t) i_len )
291 if( p_access->info.i_pos < p_sys->i_start + p_sys->i_header )
293 int i_offset = p_access->info.i_pos - p_sys->i_start;
294 i_copy = __MIN( p_sys->i_header - i_offset, (int)((size_t)i_len - i_data) );
295 memcpy( &p_buffer[i_data], &p_sys->p_header[i_offset], i_copy );
298 p_access->info.i_pos += i_copy;
300 else if( p_sys->i_packet_used < p_sys->i_packet_length )
302 i_copy = __MIN( p_sys->i_packet_length - p_sys->i_packet_used,
305 memcpy( &p_buffer[i_data],
306 &p_sys->p_packet[p_sys->i_packet_used],
310 p_sys->i_packet_used += i_copy;
311 p_access->info.i_pos += i_copy;
313 else if( (p_sys->i_packet_length > 0) &&
314 ((int)p_sys->i_packet_used < p_sys->asfh.i_min_data_packet_size) )
316 i_copy = __MIN( p_sys->asfh.i_min_data_packet_size - p_sys->i_packet_used,
319 memset( &p_buffer[i_data], 0, i_copy );
322 p_sys->i_packet_used += i_copy;
323 p_access->info.i_pos += i_copy;
328 if( GetPacket( p_access, &ck ) )
330 if( (ck.i_type == 0x4524) && (ck.i_sequence != 0) &&
331 (p_sys->b_broadcast) )
333 char *psz_location = NULL;
335 p_sys->i_start = p_access->info.i_pos;
337 msg_Dbg( p_access, "stoping the stream" );
340 msg_Dbg( p_access, "describe the stream" );
341 if( Describe( p_access, &psz_location ) )
343 msg_Err( p_access, "describe failed" );
344 p_access->info.b_eof = VLC_TRUE;
347 if( Start( p_access, 0 ) )
349 msg_Err( p_access, "Start failed" );
350 p_access->info.b_eof = VLC_TRUE;
356 p_access->info.b_eof = VLC_TRUE;
360 if( ck.i_type != 0x4424 )
362 p_sys->i_packet_used = 0;
363 p_sys->i_packet_length = 0;
371 /*****************************************************************************
373 *****************************************************************************/
374 static int Describe( access_t *p_access, char **ppsz_location )
376 access_sys_t *p_sys = p_access->p_sys;
377 char *psz_location = NULL;
382 p_sys->b_broadcast = VLC_TRUE;
383 p_sys->i_request_context = 1;
384 p_sys->i_packet_sequence = 0;
385 p_sys->i_packet_used = 0;
386 p_sys->i_packet_length = 0;
387 p_sys->p_packet = NULL;
388 E_( GenerateGuid )( &p_sys->guid );
390 if( ( p_sys->fd = net_ConnectTCP( p_access, p_sys->url.psz_host,
391 p_sys->url.i_port ) ) < 0 )
393 msg_Err( p_access, "cannot connect to %s:%d", p_sys->url.psz_host,
398 /* send first request */
399 net_Printf( VLC_OBJECT(p_access), p_sys->fd, NULL,
400 "GET %s HTTP/1.0\r\n"
402 "User-Agent: NSPlayer/4.1.0.3856\r\n"
404 "Pragma: no-cache,rate=1.000000,stream-time=0,stream-offset=0:0,request-context=%d,max-duration=0\r\n"
405 "Pragma: xClientGUID={"GUID_FMT"}\r\n"
406 "Connection: Close\r\n",
407 ( p_sys->url.psz_path == NULL || *p_sys->url.psz_path == '\0' ) ? "/" : p_sys->url.psz_path,
408 p_sys->url.psz_host, p_sys->url.i_port,
409 p_sys->i_request_context++,
410 GUID_PRINT( p_sys->guid ) );
412 if( net_Printf( VLC_OBJECT(p_access), p_sys->fd, NULL, "\r\n" ) < 0 )
414 msg_Err( p_access, "failed to send request" );
418 /* Receive the http header */
419 if( ( psz = net_Gets( VLC_OBJECT(p_access), p_sys->fd, NULL ) ) == NULL )
421 msg_Err( p_access, "failed to read answer" );
424 if( strncmp( psz, "HTTP/1.", 7 ) )
426 msg_Err( p_access, "invalid HTTP reply '%s'", psz );
430 i_code = atoi( &psz[9] );
433 msg_Err( p_access, "error: %s", psz );
438 msg_Dbg( p_access, "HTTP reply '%s'", psz );
442 char *psz = net_Gets( p_access, p_sys->fd, NULL );
447 msg_Err( p_access, "failed to read answer" );
457 if( ( p = strchr( psz, ':' ) ) == NULL )
459 msg_Err( p_access, "malformed header line: %s", psz );
464 while( *p == ' ' ) p++;
466 /* FIXME FIXME test Content-Type to see if it's a plain stream or an
468 if( !strcasecmp( psz, "Pragma" ) )
470 if( strstr( p, "features" ) )
472 /* FIXME, it is a bit badly done here ..... */
473 if( strstr( p, "broadcast" ) )
475 msg_Dbg( p_access, "stream type = broadcast" );
476 p_sys->b_broadcast = VLC_TRUE;
478 else if( strstr( p, "seekable" ) )
480 msg_Dbg( p_access, "stream type = seekable" );
481 p_sys->b_broadcast = VLC_FALSE;
485 msg_Warn( p_access, "unknow stream types (%s)", p );
486 p_sys->b_broadcast = VLC_FALSE;
490 else if( !strcasecmp( psz, "Location" ) )
492 psz_location = strdup( p );
498 /* Handle the redirection */
499 if( ( i_code == 301 || i_code == 302 ||
500 i_code == 303 || i_code == 307 ) &&
501 psz_location && *psz_location )
503 msg_Dbg( p_access, "redirection to %s", psz_location );
504 net_Close( p_sys->fd ); p_sys->fd = -1;
506 *ppsz_location = psz_location;
510 /* Read the asf header */
512 p_sys->p_header = NULL;
516 if( GetPacket( p_access, &ck ) ||
517 (ck.i_type != 0x4824) )
524 p_sys->i_header += ck.i_data;
525 p_sys->p_header = realloc( p_sys->p_header, p_sys->i_header );
526 memcpy( &p_sys->p_header[p_sys->i_header - ck.i_data],
527 ck.p_data, ck.i_data );
530 msg_Dbg( p_access, "complete header size=%d", p_sys->i_header );
531 if( p_sys->i_header <= 0 )
533 msg_Err( p_access, "header size == 0" );
536 /* close this connection */
537 net_Close( p_sys->fd ); p_sys->fd = -1;
539 /* *** parse header and get stream and their id *** */
540 /* get all streams properties,
542 * TODO : stream bitrates properties(optional)
543 * and bitrate mutual exclusion(optional) */
544 E_( asf_HeaderParse )( &p_sys->asfh,
545 p_sys->p_header, p_sys->i_header );
546 msg_Dbg( p_access, "packet count="I64Fd" packet size=%d",
547 p_sys->asfh.i_data_packets_count,
548 p_sys->asfh.i_min_data_packet_size );
550 E_( asf_StreamSelect)( &p_sys->asfh,
551 var_CreateGetInteger( p_access, "mms-maxbitrate" ),
552 var_CreateGetInteger( p_access, "mms-all" ),
553 var_CreateGetInteger( p_access, "audio" ),
554 var_CreateGetInteger( p_access, "video" ) );
560 net_Close( p_sys->fd );
566 /*****************************************************************************
568 *****************************************************************************/
569 static int Start( access_t *p_access, off_t i_pos )
571 access_sys_t *p_sys = p_access->p_sys;
576 msg_Dbg( p_access, "starting stream" );
578 if( ( p_sys->fd = net_ConnectTCP( p_access, p_sys->url.psz_host,
579 p_sys->url.i_port ) ) < 0 )
581 /* should not occur */
582 msg_Err( p_access, "cannot connect to the server" );
586 for( i = 1; i < 128; i++ )
588 if( p_sys->asfh.stream[i].i_selected )
596 msg_Err( p_access, "no stream selected" );
599 net_Printf( VLC_OBJECT(p_access), p_sys->fd, NULL,
600 "GET %s HTTP/1.0\r\n"
602 "User-Agent: NSPlayer/4.1.0.3856\r\n"
604 ( p_sys->url.psz_path == NULL || *p_sys->url.psz_path == '\0' ) ? "/" : p_sys->url.psz_path,
605 p_sys->url.psz_host, p_sys->url.i_port );
606 if( p_sys->b_broadcast )
608 net_Printf( VLC_OBJECT(p_access), p_sys->fd, NULL,
609 "Pragma: no-cache,rate=1.000000,request-context=%d\r\n",
610 p_sys->i_request_context++ );
614 net_Printf( VLC_OBJECT(p_access), p_sys->fd, NULL,
615 "Pragma: no-cache,rate=1.000000,stream-time=0,stream-offset=%u:%u,request-context=%d,max-duration=0\r\n",
616 (uint32_t)((i_pos >> 32)&0xffffffff),
617 (uint32_t)(i_pos&0xffffffff),
618 p_sys->i_request_context++ );
620 net_Printf( VLC_OBJECT(p_access), p_sys->fd, NULL,
621 "Pragma: xPlayStrm=1\r\n"
622 "Pragma: xClientGUID={"GUID_FMT"}\r\n"
623 "Pragma: stream-switch-count=%d\r\n"
624 "Pragma: stream-switch-entry=",
625 GUID_PRINT( p_sys->guid ),
628 for( i = 1; i < 128; i++ )
630 if( p_sys->asfh.stream[i].i_cat != ASF_STREAM_UNKNOWN )
633 if( p_sys->asfh.stream[i].i_selected )
638 net_Printf( VLC_OBJECT(p_access), p_sys->fd, NULL,
639 "ffff:%d:%d ", i, i_select );
642 net_Printf( VLC_OBJECT(p_access), p_sys->fd, NULL, "\r\n" );
643 net_Printf( VLC_OBJECT(p_access), p_sys->fd, NULL,
644 "Connection: Close\r\n" );
646 if( net_Printf( VLC_OBJECT(p_access), p_sys->fd, NULL, "\r\n" ) < 0 )
648 msg_Err( p_access, "failed to send request" );
652 if( ( psz = net_Gets( VLC_OBJECT(p_access), p_sys->fd, NULL ) ) == NULL )
654 msg_Err( p_access, "cannot read data" );
657 if( atoi( &psz[9] ) >= 400 )
659 msg_Err( p_access, "error: %s", psz );
663 msg_Dbg( p_access, "HTTP reply '%s'", psz );
666 /* FIXME check HTTP code */
669 char *psz = net_Gets( p_access, p_sys->fd, NULL );
672 msg_Err( p_access, "cannot read data" );
680 msg_Dbg( p_access, "%s", psz );
684 p_sys->i_packet_used = 0;
685 p_sys->i_packet_length = 0;
690 /*****************************************************************************
692 *****************************************************************************/
693 static void Stop( access_t *p_access )
695 access_sys_t *p_sys = p_access->p_sys;
697 msg_Dbg( p_access, "closing stream" );
700 net_Close( p_sys->fd );
705 /*****************************************************************************
707 *****************************************************************************/
708 static int GetPacket( access_t * p_access, chunk_t *p_ck )
710 access_sys_t *p_sys = p_access->p_sys;
714 memset( p_ck, 0, sizeof( chunk_t ) );
716 /* Read the chunk header */
717 /* Some headers are short, like 0x4324. Reading 12 bytes will cause us
718 * to lose synchronization with the stream. Just read to the length
719 * (4 bytes), decode and then read up to 8 additional bytes to get the
722 if( net_Read( p_access, p_sys->fd, NULL, p_sys->buffer, 4, VLC_TRUE ) < 4 )
724 msg_Err( p_access, "cannot read data" );
727 p_ck->i_type = GetWLE( p_sys->buffer);
728 p_ck->i_size = GetWLE( p_sys->buffer + 2);
730 restsize = p_ck->i_size;
734 if( net_Read( p_access, p_sys->fd, NULL, p_sys->buffer + 4, restsize, VLC_TRUE ) < restsize )
736 msg_Err( p_access, "cannot read data" );
739 p_ck->i_sequence = GetDWLE( p_sys->buffer + 4);
740 p_ck->i_unknown = GetWLE( p_sys->buffer + 8);
742 /* Set i_size2 to 8 if this header was short, since a real value won't be
743 * present in the buffer. Using 8 avoid reading additional data for the
749 p_ck->i_size2 = GetWLE( p_sys->buffer + 10);
751 p_ck->p_data = p_sys->buffer + 12;
752 p_ck->i_data = p_ck->i_size2 - 8;
754 if( p_ck->i_type == 0x4524 ) // Transfer complete
756 if( p_ck->i_sequence == 0 )
758 msg_Warn( p_access, "EOF" );
763 msg_Warn( p_access, "Next stream follow but not supported" );
767 /* 0x4324 is CHUNK_TYPE_RESET. We can safely ignore it: a new stream will
768 * follow with a sequence of 0 */
769 else if( (p_ck->i_type != 0x4824) && (p_ck->i_type != 0x4424) &&
770 (p_ck->i_type != 0x4324) )
772 msg_Err( p_access, "invalid chunk FATAL (0x%x)", p_ck->i_type );
776 if( (p_ck->i_data > 0) &&
777 (net_Read( p_access, p_sys->fd, NULL, &p_sys->buffer[12],
778 p_ck->i_data, VLC_TRUE ) < p_ck->i_data) )
780 msg_Err( p_access, "cannot read data" );
784 if( (p_sys->i_packet_sequence != 0) &&
785 (p_ck->i_sequence != p_sys->i_packet_sequence) )
787 msg_Warn( p_access, "packet lost ? (%d != %d)", p_ck->i_sequence, p_sys->i_packet_sequence );
790 p_sys->i_packet_sequence = p_ck->i_sequence + 1;
791 p_sys->i_packet_used = 0;
792 p_sys->i_packet_length = p_ck->i_data;
793 p_sys->p_packet = p_ck->p_data;