1 /*****************************************************************************
2 * mms.c: MMS access plug-in
3 *****************************************************************************
4 * Copyright (C) 2001, 2002 VideoLAN
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 *****************************************************************************/
25 /*****************************************************************************
27 *****************************************************************************/
31 #include <vlc/input.h>
40 #ifdef HAVE_SYS_TIME_H
41 # include <sys/time.h>
43 #ifdef HAVE_SYS_TYPES_H
44 # include <sys/types.h>
46 #ifdef HAVE_SYS_STAT_H
47 # include <sys/stat.h>
51 # include <winsock2.h>
52 # include <ws2tcpip.h>
54 # define IN_MULTICAST(a) IN_CLASSD(a)
57 # include <sys/socket.h>
58 # include <netinet/in.h>
60 # include <arpa/inet.h>
61 # elif defined( SYS_BEOS )
62 # include <net/netdb.h>
75 /****************************************************************************
77 * MMSProtocole documentation found at http://get.to/sdp
78 ****************************************************************************/
80 /*****************************************************************************
82 *****************************************************************************/
83 int E_( MMSTUOpen ) ( access_t * );
84 void E_( MMSTUClose ) ( access_t * );
87 static int Read( access_t *, uint8_t *, int );
88 static int Seek( access_t *, int64_t );
89 static int Control( access_t *, int, va_list );
91 static int MMSOpen ( access_t *, vlc_url_t *, int );
92 static int MMSStart( access_t *, uint32_t );
93 static int MMSStop ( access_t * );
94 static void MMSClose( access_t * );
97 static int mms_CommandRead( access_t *p_access, int i_command1, int i_command2 );
98 static int mms_CommandSend( access_t *, int, uint32_t, uint32_t, uint8_t *, int );
100 static int mms_HeaderMediaRead( access_t *, int );
102 static int mms_ReceivePacket( access_t * );
106 * XXX DON'T FREE MY MEMORY !!! XXX
110 * Ok, ok, j'le ferai plus...
116 * Vous pourriez signer vos commentaires (même si on voit bien qui peut
117 * écrire ce genre de trucs :p), et écrire en anglais, bordel de
121 * Alors la ouai ç'est fou les gens qui écrivent des commentaires sans les
122 * signer. Ca mériterait un coup de pied dans le cul ça :)
125 int E_(MMSTUOpen)( access_t *p_access )
131 /* Set up p_access */
132 p_access->pf_read = Read;
133 p_access->pf_block = NULL;
134 p_access->pf_control = Control;
135 p_access->pf_seek = Seek;
136 p_access->info.i_update = 0;
137 p_access->info.i_size = 0;
138 p_access->info.i_pos = 0;
139 p_access->info.b_eof = VLC_FALSE;
140 p_access->info.i_title = 0;
141 p_access->info.i_seekpoint = 0;
142 p_access->p_sys = p_sys = malloc( sizeof( access_sys_t ) );
143 memset( p_sys, 0, sizeof( access_sys_t ) );
145 /* *** Parse URL and get server addr/port and path *** */
146 vlc_UrlParse( &p_sys->url, p_access->psz_path, 0 );
147 if( p_sys->url.psz_host == NULL || *p_sys->url.psz_host == '\0' )
149 msg_Err( p_access, "invalid server name" );
150 vlc_UrlClean( &p_sys->url );
153 if( p_sys->url.i_port <= 0 )
155 p_sys->url.i_port = 1755;
158 /* *** connect to this server *** */
159 /* look at requested protocol (udp/tcp) */
160 i_proto = MMS_PROTO_AUTO;
161 if( *p_access->psz_access )
163 if( !strncmp( p_access->psz_access, "mmsu", 4 ) )
165 i_proto = MMS_PROTO_UDP;
167 else if( !strncmp( p_access->psz_access, "mmst", 4 ) )
169 i_proto = MMS_PROTO_TCP;
174 if( i_proto == MMS_PROTO_AUTO )
175 { /* first try with TCP and then UDP*/
176 if( ( i_status = MMSOpen( p_access, &p_sys->url, MMS_PROTO_TCP ) ) )
178 i_status = MMSOpen( p_access, &p_sys->url, MMS_PROTO_UDP );
183 i_status = MMSOpen( p_access, &p_sys->url, i_proto );
188 msg_Err( p_access, "cannot connect to server" );
189 vlc_UrlClean( &p_sys->url );
193 msg_Dbg( p_access, "connected to %s:%d", p_sys->url.psz_host, p_sys->url.i_port );
197 * broadcast yy=0x02, xx= 0x00
198 * pre-recorded yy=0x01, xx= 0x80 if video, 0x00 no video
200 if( p_sys->i_packet_count <= 0 && p_sys->asfh.i_data_packets_count > 0 )
202 p_sys->i_packet_count = p_sys->asfh.i_data_packets_count;
204 if( p_sys->i_packet_count <= 0 || ( p_sys->i_flags_broadcast >> 24 ) == 0x02 )
206 p_sys->b_seekable = VLC_FALSE;
210 p_sys->b_seekable = VLC_TRUE;
211 p_access->info.i_size =
212 (uint64_t)p_sys->i_header +
213 (uint64_t)p_sys->i_packet_count * (uint64_t)p_sys->i_packet_length;
216 /* *** Start stream *** */
217 if( MMSStart( p_access, 0xffffffff ) < 0 )
219 msg_Err( p_access, "cannot start stream" );
220 MMSClose( p_access );
221 vlc_UrlClean( &p_sys->url );
227 /*****************************************************************************
228 * Close: free unused data structures
229 *****************************************************************************/
230 void E_(MMSTUClose)( access_t *p_access )
232 access_sys_t *p_sys = p_access->p_sys;
234 /* close connection with server */
235 MMSClose( p_access );
238 vlc_UrlClean( &p_sys->url );
243 /*****************************************************************************
245 *****************************************************************************/
246 static int Control( access_t *p_access, int i_query, va_list args )
248 access_sys_t *p_sys = p_access->p_sys;
257 case ACCESS_CAN_SEEK:
258 pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t* );
259 *pb_bool = p_sys->b_seekable;
261 case ACCESS_CAN_FASTSEEK:
262 case ACCESS_CAN_PAUSE:
263 case ACCESS_CAN_CONTROL_PACE:
264 pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t* );
265 *pb_bool = VLC_FALSE;
270 pi_int = (int*)va_arg( args, int * );
271 *pi_int = 3 * p_sys->i_packet_length;
274 case ACCESS_GET_PTS_DELAY:
275 pi_64 = (int64_t*)va_arg( args, int64_t * );
276 var_Get( p_access, "mms-caching", &val );
277 *pi_64 = (int64_t)var_GetInteger( p_access, "mms-caching" ) * I64C(1000);
281 case ACCESS_SET_PAUSE_STATE:
282 case ACCESS_GET_TITLE_INFO:
283 case ACCESS_SET_TITLE:
284 case ACCESS_SET_SEEKPOINT:
285 case ACCESS_SET_PRIVATE_ID_STATE:
289 msg_Warn( p_access, "unimplemented query in control" );
296 /*****************************************************************************
297 * Seek: try to go at the right place
298 *****************************************************************************/
299 static int Seek( access_t * p_access, int64_t i_pos )
301 access_sys_t *p_sys = p_access->p_sys;
309 if( i_pos < p_sys->i_header)
312 if( p_access->info.i_pos < p_sys->i_header )
314 /* no need to restart stream, it was already one
315 * or no stream was yet read */
316 p_access->info.i_pos = i_pos;
321 i_packet = 0xffffffff;
327 i_packet = ( i_pos - p_sys->i_header ) / p_sys->i_packet_length;
328 i_offset = ( i_pos - p_sys->i_header ) % p_sys->i_packet_length;
330 msg_Dbg( p_access, "seeking to "I64Fd " (packet:%d)", i_pos, i_packet );
333 msg_Dbg( p_access, "stream stopped (seek)" );
335 /* *** restart stream *** */
336 var_buffer_initwrite( &buffer, 0 );
337 var_buffer_add64( &buffer, 0 ); /* seek point in second */
338 var_buffer_add32( &buffer, 0xffffffff );
339 var_buffer_add32( &buffer, i_packet ); // begin from start
340 var_buffer_add8( &buffer, 0xff ); // stream time limit
341 var_buffer_add8( &buffer, 0xff ); // on 3bytes ...
342 var_buffer_add8( &buffer, 0xff ); //
343 var_buffer_add8( &buffer, 0x00 ); // don't use limit
344 var_buffer_add32( &buffer, p_sys->i_media_packet_id_type );
346 mms_CommandSend( p_access, 0x07, p_sys->i_command_level, 0x0001ffff,
347 buffer.p_data, buffer.i_data );
349 var_buffer_free( &buffer );
352 while( !p_access->b_die )
354 mms_HeaderMediaRead( p_access, MMS_PACKET_CMD );
355 if( p_sys->i_command == 0x1e )
357 msg_Dbg( p_access, "received 0x1e (seek)" );
362 while( !p_access->b_die )
364 mms_HeaderMediaRead( p_access, MMS_PACKET_CMD );
365 if( p_sys->i_command == 0x05 )
367 msg_Dbg( p_access, "received 0x05 (seek)" );
373 mms_HeaderMediaRead( p_access, MMS_PACKET_MEDIA );
374 msg_Dbg( p_access, "Streaming restarted" );
376 p_sys->i_media_used += i_offset;
377 p_access->info.i_pos = i_pos;
378 p_access->info.b_eof = VLC_FALSE;
383 /*****************************************************************************
385 *****************************************************************************/
386 static int Read( access_t *p_access, uint8_t *p_buffer, int i_len )
388 access_sys_t *p_sys = p_access->p_sys;
394 /* *** now send data if needed *** */
395 while( i_data < i_len )
397 if( p_access->info.i_pos < p_sys->i_header )
399 i_copy = __MIN( i_len, p_sys->i_header - p_access->info.i_pos );
400 memcpy( &p_buffer[i_data], &p_sys->p_header[p_access->info.i_pos], i_copy );
402 p_access->info.i_pos += i_copy;
404 else if( p_sys->i_media_used < p_sys->i_media )
406 i_copy = __MIN( i_len - i_data ,
407 p_sys->i_media - p_sys->i_media_used );
408 memcpy( &p_buffer[i_data], &p_sys->p_media[p_sys->i_media_used], i_copy );
410 p_sys->i_media_used += i_copy;
411 p_access->info.i_pos += i_copy;
413 else if( p_sys->p_media != NULL &&
414 p_sys->i_media_used < p_sys->i_packet_length )
416 i_copy = __MIN( i_len - i_data,
417 p_sys->i_packet_length - p_sys->i_media_used);
418 memset( &p_buffer[i_data], 0, i_copy );
421 p_sys->i_media_used += i_copy;
422 p_access->info.i_pos += i_copy;
424 else if( p_access->info.b_eof ||
425 mms_HeaderMediaRead( p_access, MMS_PACKET_MEDIA ) < 0 )
434 /****************************************************************************
435 * MMSOpen : Open a connection with the server over mmst or mmsu
436 ****************************************************************************/
437 static int MMSOpen( access_t *p_access, vlc_url_t *p_url, int i_proto )
439 access_sys_t *p_sys = p_access->p_sys;
440 int b_udp = ( i_proto == MMS_PROTO_UDP ) ? 1 : 0;
445 int i_server_version;
447 int i_update_player_url;
448 int i_encryption_type;
454 /* *** Open a TCP connection with server *** */
455 msg_Dbg( p_access, "waiting for connection..." );
456 p_sys->i_handle_tcp = net_OpenTCP( p_access, p_url->psz_host, p_url->i_port );
457 if( p_sys->i_handle_tcp < 0 )
459 msg_Err( p_access, "failed to open a connection (tcp)" );
463 "connection(tcp) with \"%s:%d\" successful",
467 /* *** Bind port if UDP protocol is selected *** */
470 struct sockaddr_storage name;
471 socklen_t i_namelen = sizeof( name );
473 if( getsockname( p_sys->i_handle_tcp,
474 (struct sockaddr*)&name, &i_namelen ) < 0 )
476 net_Close( p_sys->i_handle_tcp );
480 /* FIXME: not thread-safe for IPv4 */
481 /* FIXME: not sure if it works fine for IPv6 */
482 if( name.ss_family == AF_INET )
483 p_sys->psz_bind_addr = inet_ntoa( ((struct sockaddr_in *)&name)->sin_addr );
485 p_sys->psz_bind_addr = p_url->psz_host;
487 p_sys->i_handle_udp = net_OpenUDP( p_access, p_sys->psz_bind_addr, 7000, "", 0 );
488 if( p_sys->i_handle_udp < 0 )
490 msg_Err( p_access, "failed to open a connection (udp)" );
491 net_Close( p_sys->i_handle_tcp );
495 "connection(udp) at \"%s:%d\" successful",
496 p_sys->psz_bind_addr, 7000 );
500 p_sys->psz_bind_addr = NULL;
503 /* *** Init context for mms prototcol *** */
504 E_( GenerateGuid )( &p_sys->guid ); /* used to identify client by server */
506 "generated guid: "GUID_FMT,
507 GUID_PRINT( p_sys->guid ) );
508 p_sys->i_command_level = 1; /* updated after 0x1A command */
509 p_sys->i_seq_num = 0;
510 p_sys->i_media_packet_id_type = 0x04;
511 p_sys->i_header_packet_id_type = 0x02;
512 p_sys->i_proto = i_proto;
513 p_sys->i_packet_seq_num = 0;
514 p_sys->p_header = NULL;
516 p_sys->p_media = NULL;
518 p_sys->i_media_used = 0;
520 p_access->info.i_pos = 0;
521 p_sys->i_buffer_tcp = 0;
522 p_sys->i_buffer_udp = 0;
525 p_access->info.b_eof = 0;
527 /* *** send command 1 : connection request *** */
528 var_buffer_initwrite( &buffer, 0 );
529 var_buffer_add16( &buffer, 0x001c );
530 var_buffer_add16( &buffer, 0x0003 );
532 "NSPlayer/7.0.0.1956; {"GUID_FMT"}; Host: %s",
533 GUID_PRINT( p_sys->guid ),
535 var_buffer_addUTF16( &buffer, tmp );
537 mms_CommandSend( p_access,
538 0x01, /* connexion request */
539 0x00000000, /* flags, FIXME */
540 0x0004000b, /* ???? */
544 if( mms_CommandRead( p_access, 0x01, 0 ) < 0 )
546 var_buffer_free( &buffer );
547 MMSClose( p_access );
551 i_server_version = GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 32 );
552 i_tool_version = GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 36 );
553 i_update_player_url = GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 40 );
554 i_encryption_type = GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 44 );
555 p = (uint16_t*)( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 48 );
556 #define GETUTF16( psz, size ) \
559 psz = malloc( size + 1); \
560 for( i = 0; i < size; i++ ) \
567 GETUTF16( p_sys->psz_server_version, i_server_version );
568 GETUTF16( p_sys->psz_tool_version, i_tool_version );
569 GETUTF16( p_sys->psz_update_player_url, i_update_player_url );
570 GETUTF16( p_sys->psz_encryption_type, i_encryption_type );
573 "0x01 --> server_version:\"%s\" tool_version:\"%s\" update_player_url:\"%s\" encryption_type:\"%s\"",
574 p_sys->psz_server_version,
575 p_sys->psz_tool_version,
576 p_sys->psz_update_player_url,
577 p_sys->psz_encryption_type );
579 /* *** should make an 18 command to make data timing *** */
581 /* *** send command 2 : transport protocol selection *** */
582 var_buffer_reinitwrite( &buffer, 0 );
583 var_buffer_add32( &buffer, 0x00000000 );
584 var_buffer_add32( &buffer, 0x000a0000 );
585 var_buffer_add32( &buffer, 0x00000002 );
590 p_sys->psz_bind_addr,
595 sprintf( tmp, "\\\\192.168.0.1\\TCP\\1242" );
597 var_buffer_addUTF16( &buffer, tmp );
598 var_buffer_add16( &buffer, '0' );
600 mms_CommandSend( p_access,
601 0x02, /* connexion request */
602 0x00000000, /* flags, FIXME */
603 0xffffffff, /* ???? */
607 /* *** response from server, should be 0x02 or 0x03 *** */
608 mms_CommandRead( p_access, 0x02, 0x03 );
609 if( p_sys->i_command == 0x03 )
612 "%s protocol selection failed", b_udp ? "UDP" : "TCP" );
613 var_buffer_free( &buffer );
614 MMSClose( p_access );
617 else if( p_sys->i_command != 0x02 )
619 msg_Warn( p_access, "received command isn't 0x02 in reponse to 0x02" );
622 /* *** send command 5 : media file name/path requested *** */
623 var_buffer_reinitwrite( &buffer, 0 );
624 var_buffer_add64( &buffer, 0 );
625 var_buffer_addUTF16( &buffer, p_url->psz_path );
627 mms_CommandSend( p_access,
629 p_sys->i_command_level,
634 /* *** wait for reponse *** */
635 mms_CommandRead( p_access, 0x1a, 0x06 );
637 /* test if server send 0x1A answer */
638 if( p_sys->i_command == 0x1A )
640 msg_Err( p_access, "id/password requested (not yet supported)" );
642 var_buffer_free( &buffer );
643 MMSClose( p_access );
646 if( p_sys->i_command != 0x06 )
649 "unknown answer (0x%x instead of 0x06)",
651 var_buffer_free( &buffer );
652 MMSClose( p_access );
656 /* 1 for file ok, 2 for authen ok */
657 switch( GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE ) )
660 msg_Dbg( p_access, "Media file name/path accepted" );
663 msg_Dbg( p_access, "Authentication accepted" );
667 msg_Err( p_access, "error while asking for file %d",
668 GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE ) );
669 var_buffer_free( &buffer );
670 MMSClose( p_access );
674 p_sys->i_flags_broadcast =
675 GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 12 );
676 p_sys->i_media_length =
677 GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 24 );
678 p_sys->i_packet_length =
679 GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 44 );
680 p_sys->i_packet_count =
681 GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 48 );
682 p_sys->i_max_bit_rate =
683 GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 56 );
684 p_sys->i_header_size =
685 GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 60 );
688 "answer 0x06 flags:0x%8.8x media_length:%ds packet_length:%d packet_count:%d max_bit_rate:%d header_size:%d",
689 p_sys->i_flags_broadcast,
690 p_sys->i_media_length,
691 p_sys->i_packet_length,
692 p_sys->i_packet_count,
693 p_sys->i_max_bit_rate,
694 p_sys->i_header_size );
696 /* *** send command 15 *** */
698 var_buffer_reinitwrite( &buffer, 0 );
699 var_buffer_add32( &buffer, 0 );
700 var_buffer_add32( &buffer, 0x8000 );
701 var_buffer_add32( &buffer, 0xffffffff );
702 var_buffer_add32( &buffer, 0x00 );
703 var_buffer_add32( &buffer, 0x00 );
704 var_buffer_add32( &buffer, 0x00 );
705 var_buffer_add64( &buffer, (((uint64_t)0x40ac2000)<<32) );
706 var_buffer_add32( &buffer, p_sys->i_header_packet_id_type );
707 var_buffer_add32( &buffer, 0x00 );
708 mms_CommandSend( p_access, 0x15, p_sys->i_command_level, 0x00,
709 buffer.p_data, buffer.i_data );
711 /* *** wait for reponse *** */
712 /* Commented out because it fails on some stream (no 0x11 answer) */
714 mms_CommandRead( p_access, 0x11, 0 );
716 if( p_sys->i_command != 0x11 )
719 "unknown answer (0x%x instead of 0x11)",
721 var_buffer_free( &buffer );
722 MMSClose( p_access );
727 /* *** now read header packet *** */
728 /* XXX could be split over multiples packets */
729 msg_Dbg( p_access, "reading header" );
732 if( mms_HeaderMediaRead( p_access, MMS_PACKET_HEADER ) < 0 )
734 msg_Err( p_access, "cannot receive header" );
735 var_buffer_free( &buffer );
736 MMSClose( p_access );
739 if( p_sys->i_header >= p_sys->i_header_size )
742 "header complete(%d)",
747 "header incomplete (%d/%d), reading more",
749 p_sys->i_header_size );
752 /* *** parse header and get stream and their id *** */
753 /* get all streams properties,
755 * TODO : stream bitrates properties(optional)
756 * and bitrate mutual exclusion(optional) */
757 E_( asf_HeaderParse )( &p_sys->asfh,
758 p_sys->p_header, p_sys->i_header );
759 E_( asf_StreamSelect)( &p_sys->asfh,
760 var_CreateGetInteger( p_access, "mms-maxbitrate" ),
761 var_CreateGetInteger( p_access, "mms-all" ),
762 var_CreateGetInteger( p_access, "audio" ),
763 var_CreateGetInteger( p_access, "video" ) );
765 /* *** now select stream we want to receive *** */
766 /* TODO take care of stream bitrate TODO */
769 var_buffer_reinitwrite( &buffer, 0 );
770 /* for now, select first audio and video stream */
771 for( i = 1; i < 128; i++ )
774 if( p_sys->asfh.stream[i].i_cat != ASF_STREAM_UNKNOWN )
779 var_buffer_add16( &buffer, 0xffff );
780 var_buffer_add16( &buffer, i );
786 if( p_sys->asfh.stream[i].i_selected )
788 var_buffer_add16( &buffer, 0x0000 );
790 "selecting stream[0x%x] %s (%d kb/s)",
792 ( p_sys->asfh.stream[i].i_cat == ASF_STREAM_AUDIO ) ?
794 p_sys->asfh.stream[i].i_bitrate / 1024);
798 var_buffer_add16( &buffer, 0x0002 );
800 "ignoring stream[0x%x] %s (%d kb/s)",
802 ( p_sys->asfh.stream[i].i_cat == ASF_STREAM_AUDIO ) ?
804 p_sys->asfh.stream[i].i_bitrate / 1024);
812 msg_Err( p_access, "cannot find any stream" );
813 var_buffer_free( &buffer );
814 MMSClose( p_access );
817 mms_CommandSend( p_access, 0x33,
819 0xffff | ( i_first << 16 ),
820 buffer.p_data, buffer.i_data );
822 mms_CommandRead( p_access, 0x21, 0 );
823 if( p_sys->i_command != 0x21 )
826 "unknown answer (0x%x instead of 0x21)",
828 var_buffer_free( &buffer );
829 MMSClose( p_access );
834 var_buffer_free( &buffer );
836 msg_Info( p_access, "connection sucessful" );
841 /****************************************************************************
842 * MMSStart : Start streaming
843 ****************************************************************************/
844 static int MMSStart( access_t *p_access, uint32_t i_packet )
846 access_sys_t *p_sys = p_access->p_sys;
849 /* *** start stream from packet 0 *** */
850 var_buffer_initwrite( &buffer, 0 );
851 var_buffer_add64( &buffer, 0 ); /* seek point in second */
852 var_buffer_add32( &buffer, 0xffffffff );
853 var_buffer_add32( &buffer, i_packet ); // begin from start
854 var_buffer_add8( &buffer, 0xff ); // stream time limit
855 var_buffer_add8( &buffer, 0xff ); // on 3bytes ...
856 var_buffer_add8( &buffer, 0xff ); //
857 var_buffer_add8( &buffer, 0x00 ); // don't use limit
858 var_buffer_add32( &buffer, p_sys->i_media_packet_id_type );
860 mms_CommandSend( p_access, 0x07, p_sys->i_command_level, 0x0001ffff,
861 buffer.p_data, buffer.i_data );
863 var_buffer_free( &buffer );
865 mms_CommandRead( p_access, 0x05, 0 );
867 if( p_sys->i_command != 0x05 )
870 "unknown answer (0x%x instead of 0x05)",
877 mms_HeaderMediaRead( p_access, MMS_PACKET_MEDIA );
878 msg_Dbg( p_access, "Streaming started" );
883 /****************************************************************************
884 * MMSStop : Stop streaming
885 ****************************************************************************/
886 static int MMSStop( access_t *p_access )
888 access_sys_t *p_sys = p_access->p_sys;
890 /* *** stop stream but keep connection alive *** */
891 mms_CommandSend( p_access,
893 p_sys->i_command_level,
899 /****************************************************************************
900 * MMSClose : Close streaming and connection
901 ****************************************************************************/
902 static void MMSClose( access_t *p_access )
904 access_sys_t *p_sys = p_access->p_sys;
906 msg_Dbg( p_access, "Connection closed" );
908 /* *** tell server that we will disconnect *** */
909 mms_CommandSend( p_access,
911 p_sys->i_command_level,
915 /* *** close sockets *** */
916 net_Close( p_sys->i_handle_tcp );
917 if( p_sys->i_proto == MMS_PROTO_UDP )
919 net_Close( p_sys->i_handle_udp );
922 FREE( p_sys->p_cmd );
923 FREE( p_sys->p_media );
924 FREE( p_sys->p_header );
926 FREE( p_sys->psz_server_version );
927 FREE( p_sys->psz_tool_version );
928 FREE( p_sys->psz_update_player_url );
929 FREE( p_sys->psz_encryption_type );
932 /****************************************************************************
934 * MMS specific functions
936 ****************************************************************************/
937 static int mms_CommandSend( access_t *p_access,
939 uint32_t i_prefix1, uint32_t i_prefix2,
940 uint8_t *p_data, int i_data )
944 access_sys_t *p_sys = p_access->p_sys;
947 i_data_by8 = ( i_data + 7 ) / 8;
949 /* first init uffer */
950 var_buffer_initwrite( &buffer, 0 );
952 var_buffer_add32( &buffer, 0x00000001 ); /* start sequence */
953 var_buffer_add32( &buffer, 0xB00BFACE );
954 /* size after protocol type */
955 var_buffer_add32( &buffer, i_data + MMS_CMD_HEADERSIZE - 16 );
956 var_buffer_add32( &buffer, 0x20534d4d ); /* protocol "MMS " */
957 var_buffer_add32( &buffer, i_data_by8 + 4 );
958 var_buffer_add32( &buffer, p_sys->i_seq_num ); p_sys->i_seq_num++;
959 var_buffer_add64( &buffer, 0 );
960 var_buffer_add32( &buffer, i_data_by8 + 2 );
961 var_buffer_add32( &buffer, 0x00030000 | i_command ); /* dir | command */
962 var_buffer_add32( &buffer, i_prefix1 ); /* command specific */
963 var_buffer_add32( &buffer, i_prefix2 ); /* command specific */
965 /* specific command data */
966 if( p_data && i_data > 0 )
968 var_buffer_addmemory( &buffer, p_data, i_data );
972 if( send( p_sys->i_handle_tcp,
977 msg_Err( p_access, "failed to send command" );
981 var_buffer_free( &buffer );
985 static int NetFillBuffer( access_t *p_access )
991 access_sys_t *p_sys = p_access->p_sys;
992 struct timeval timeout;
996 /* FIXME when using udp */
997 ssize_t i_tcp, i_udp;
998 ssize_t i_tcp_read, i_udp_read;
1002 i_tcp = MMS_BUFFER_SIZE/2 - p_sys->i_buffer_tcp;
1004 if( p_sys->i_proto == MMS_PROTO_UDP )
1006 i_udp = MMS_BUFFER_SIZE/2 - p_sys->i_buffer_udp;
1010 i_udp = 0; /* there isn't udp socket */
1016 i_handle_max = __MAX( i_handle_max, p_sys->i_handle_tcp );
1018 i_handle_max = __MAX( i_handle_max, p_sys->i_handle_udp );
1020 if( i_handle_max == 0 )
1022 msg_Warn( p_access, "nothing to read %d:%d", i_tcp, i_udp );
1027 /* msg_Warn( p_access, "ask for tcp:%d udp:%d", i_tcp, i_udp ); */
1030 /* Find if some data is available */
1035 /* Initialize file descriptor set */
1041 FD_SET( p_sys->i_handle_tcp, &fds_r );
1042 FD_SET( p_sys->i_handle_tcp, &fds_e );
1046 FD_SET( p_sys->i_handle_udp, &fds_r );
1047 FD_SET( p_sys->i_handle_udp, &fds_e );
1050 /* We'll wait 0.5 second if nothing happens */
1052 timeout.tv_usec = 500000;
1054 if( i_try > 3 && (p_sys->i_buffer_tcp > 0 || p_sys->i_buffer_udp > 0) )
1059 if( p_access->b_die || p_access->b_error ) return -1;
1061 //msg_Dbg( p_access, "NetFillBuffer: trying again (select)" );
1063 } while( !(i_ret = select(i_handle_max +1, &fds_r, 0, &fds_e, &timeout)) ||
1064 (i_ret < 0 && errno == EINTR) );
1068 msg_Err( p_access, "network select error (%s)", strerror(errno) );
1072 i_tcp_read = i_udp_read = 0;
1074 if( i_tcp > 0 && FD_ISSET( p_sys->i_handle_tcp, &fds_r ) )
1077 recv( p_sys->i_handle_tcp,
1078 p_sys->buffer_tcp + p_sys->i_buffer_tcp,
1079 i_tcp + MMS_BUFFER_SIZE/2, 0 );
1082 if( i_udp > 0 && FD_ISSET( p_sys->i_handle_udp, &fds_r ) )
1084 i_udp_read = recv( p_sys->i_handle_udp,
1085 p_sys->buffer_udp + p_sys->i_buffer_udp,
1086 i_udp + MMS_BUFFER_SIZE/2, 0 );
1090 if( p_sys->i_proto == MMS_PROTO_UDP )
1092 msg_Dbg( p_access, "filling buffer TCP:%d+%d UDP:%d+%d",
1093 p_sys->i_buffer_tcp, i_tcp_read,
1094 p_sys->i_buffer_udp, i_udp_read );
1098 msg_Dbg( p_access, "filling buffer TCP:%d+%d",
1099 p_sys->i_buffer_tcp, i_tcp_read );
1103 if( i_tcp_read > 0 ) p_sys->i_buffer_tcp += i_tcp_read;
1104 if( i_udp_read > 0 ) p_sys->i_buffer_udp += i_udp_read;
1106 return i_tcp_read + i_udp_read;
1110 static int mms_ParseCommand( access_t *p_access,
1115 #define GET32( i_pos ) \
1116 ( p_sys->p_cmd[i_pos] + ( p_sys->p_cmd[i_pos +1] << 8 ) + \
1117 ( p_sys->p_cmd[i_pos + 2] << 16 ) + \
1118 ( p_sys->p_cmd[i_pos + 3] << 24 ) )
1120 access_sys_t *p_sys = p_access->p_sys;
1126 free( p_sys->p_cmd );
1128 p_sys->i_cmd = i_data;
1129 p_sys->p_cmd = malloc( i_data );
1130 memcpy( p_sys->p_cmd, p_data, i_data );
1132 *pi_used = i_data; /* by default */
1134 if( i_data < MMS_CMD_HEADERSIZE )
1136 msg_Warn( p_access, "truncated command (header incomplete)" );
1137 p_sys->i_command = 0;
1140 i_id = GetDWLE( p_data + 4 );
1141 i_length = GetDWLE( p_data + 8 ) + 16;
1143 if( i_id != 0xb00bface )
1146 "incorrect command header (0x%x)", i_id );
1147 p_sys->i_command = 0;
1151 if( i_length > p_sys->i_cmd )
1154 "truncated command (missing %d bytes)",
1155 i_length - i_data );
1156 p_sys->i_command = 0;
1159 else if( i_length < p_sys->i_cmd )
1161 p_sys->i_cmd = i_length;
1162 *pi_used = i_length;
1166 "recv command start_sequence:0x%8.8x command_id:0x%8.8x length:%d len8:%d sequence 0x%8.8x len8_II:%d dir_comm:0x%8.8x",
1170 /* 12: protocol type "MMS " */
1173 /* 24: unknown (0) */
1174 /* 28: unknown (0) */
1180 p_sys->i_command = GET32( 36 ) & 0xffff;
1183 return MMS_PACKET_CMD;
1186 static int mms_ParsePacket( access_t *p_access,
1187 uint8_t *p_data, size_t i_data,
1190 access_sys_t *p_sys = p_access->p_sys;
1191 int i_packet_seq_num;
1192 size_t i_packet_length;
1193 uint32_t i_packet_id;
1198 *pi_used = i_data; /* default */
1201 msg_Warn( p_access, "truncated packet (header incomplete)" );
1205 i_packet_id = p_data[4];
1206 i_packet_seq_num = GetDWLE( p_data );
1207 i_packet_length = GetWLE( p_data + 6 );
1209 //msg_Warn( p_access, "------->i_packet_length=%d, i_data=%d", i_packet_length, i_data );
1211 if( i_packet_length > i_data || i_packet_length <= 8)
1214 "truncated packet (Declared %d bytes, Actual %d bytes)",
1215 i_packet_length, i_data );
1219 else if( i_packet_length < i_data )
1221 *pi_used = i_packet_length;
1224 if( i_packet_id == 0xff )
1227 "receive MMS UDP pair timing" );
1228 return( MMS_PACKET_UDP_TIMING );
1231 if( i_packet_id != p_sys->i_header_packet_id_type &&
1232 i_packet_id != p_sys->i_media_packet_id_type )
1234 msg_Warn( p_access, "incorrect Packet Id Type (0x%x)", i_packet_id );
1238 /* we now have a media or a header packet */
1239 p_packet = malloc( i_packet_length - 8 ); // don't bother with preheader
1240 memcpy( p_packet, p_data + 8, i_packet_length - 8 );
1242 if( i_packet_seq_num != p_sys->i_packet_seq_num )
1244 /* FIXME for udp could be just wrong order ? */
1246 "detected packet lost (%d != %d)",
1248 p_sys->i_packet_seq_num );
1249 p_sys->i_packet_seq_num = i_packet_seq_num;
1251 p_sys->i_packet_seq_num++;
1253 if( i_packet_id == p_sys->i_header_packet_id_type )
1255 if( p_sys->p_header )
1257 p_sys->p_header = realloc( p_sys->p_header,
1258 p_sys->i_header + i_packet_length - 8 );
1259 memcpy( &p_sys->p_header[p_sys->i_header],
1261 i_packet_length - 8 );
1262 p_sys->i_header += i_packet_length - 8;
1268 p_sys->p_header = p_packet;
1269 p_sys->i_header = i_packet_length - 8;
1271 /* msg_Dbg( p_access,
1272 "receive header packet (%d bytes)",
1273 i_packet_length - 8 ); */
1275 return MMS_PACKET_HEADER;
1279 FREE( p_sys->p_media );
1280 p_sys->p_media = p_packet;
1281 p_sys->i_media = i_packet_length - 8;
1282 p_sys->i_media_used = 0;
1283 /* msg_Dbg( p_access,
1284 "receive media packet (%d bytes)",
1285 i_packet_length - 8 ); */
1287 return MMS_PACKET_MEDIA;
1291 static int mms_ReceivePacket( access_t *p_access )
1293 access_sys_t *p_sys = p_access->p_sys;
1294 int i_packet_tcp_type;
1295 int i_packet_udp_type;
1299 vlc_bool_t b_refill = VLC_TRUE;
1301 /* first if we need to refill buffer */
1302 if( p_sys->i_buffer_tcp >= MMS_CMD_HEADERSIZE )
1304 if( GetDWLE( p_sys->buffer_tcp + 4 ) == 0xb00bface )
1306 if( GetDWLE( p_sys->buffer_tcp + 8 ) + 16 <=
1307 p_sys->i_buffer_tcp )
1309 b_refill = VLC_FALSE;
1312 else if( GetWLE( p_sys->buffer_tcp + 6 ) <= p_sys->i_buffer_tcp )
1314 b_refill = VLC_FALSE;
1317 if( p_sys->i_proto == MMS_PROTO_UDP && p_sys->i_buffer_udp >= 8 &&
1318 GetWLE( p_sys->buffer_udp + 6 ) <= p_sys->i_buffer_udp )
1320 b_refill = VLC_FALSE;
1323 if( b_refill && NetFillBuffer( p_access ) < 0 )
1325 msg_Warn( p_access, "cannot fill buffer" );
1329 i_packet_tcp_type = -1;
1330 i_packet_udp_type = -1;
1332 if( p_sys->i_buffer_tcp > 0 )
1336 if( GetDWLE( p_sys->buffer_tcp + 4 ) == 0xb00bface )
1339 mms_ParseCommand( p_access, p_sys->buffer_tcp,
1340 p_sys->i_buffer_tcp, &i_used );
1346 mms_ParsePacket( p_access, p_sys->buffer_tcp,
1347 p_sys->i_buffer_tcp, &i_used );
1349 if( i_used > 0 && i_used < MMS_BUFFER_SIZE )
1351 memmove( p_sys->buffer_tcp, p_sys->buffer_tcp + i_used,
1352 MMS_BUFFER_SIZE - i_used );
1354 p_sys->i_buffer_tcp -= i_used;
1356 else if( p_sys->i_buffer_udp > 0 )
1361 mms_ParsePacket( p_access, p_sys->buffer_udp,
1362 p_sys->i_buffer_udp, &i_used );
1364 if( i_used > 0 && i_used < MMS_BUFFER_SIZE )
1366 memmove( p_sys->buffer_udp, p_sys->buffer_udp + i_used,
1367 MMS_BUFFER_SIZE - i_used );
1369 p_sys->i_buffer_udp -= i_used;
1372 if( i_packet_tcp_type == MMS_PACKET_CMD && p_sys->i_command == 0x1b )
1374 mms_CommandSend( p_access, 0x1b, 0, 0, NULL, 0 );
1375 i_packet_tcp_type = -1;
1378 if( i_packet_tcp_type != -1 )
1380 return i_packet_tcp_type;
1382 else if( i_packet_udp_type != -1 )
1384 return i_packet_udp_type;
1389 static int mms_ReceiveCommand( access_t *p_access )
1391 access_sys_t *p_sys = p_access->p_sys;
1398 if( NetFillBuffer( p_access ) < 0 )
1400 msg_Warn( p_access, "cannot fill buffer" );
1401 return VLC_EGENERIC;
1403 if( p_sys->i_buffer_tcp > 0 )
1405 i_status = mms_ParseCommand( p_access, p_sys->buffer_tcp,
1406 p_sys->i_buffer_tcp, &i_used );
1407 if( i_used < MMS_BUFFER_SIZE )
1409 memmove( p_sys->buffer_tcp, p_sys->buffer_tcp + i_used,
1410 MMS_BUFFER_SIZE - i_used );
1412 p_sys->i_buffer_tcp -= i_used;
1416 return VLC_EGENERIC;
1419 if( p_sys->i_command == 0x1b )
1421 mms_CommandSend( p_access, 0x1b, 0, 0, NULL, 0 );
1430 return VLC_EGENERIC;
1437 #define MMS_RETRY_MAX 10
1438 #define MMS_RETRY_SLEEP 50000
1440 static int mms_CommandRead( access_t *p_access, int i_command1,
1443 access_sys_t *p_sys = p_access->p_sys;
1447 for( i_count = 0; i_count < MMS_RETRY_MAX; )
1449 i_status = mms_ReceiveCommand( p_access );
1450 if( i_status < 0 || p_sys->i_command == 0 )
1453 msleep( MMS_RETRY_SLEEP );
1455 else if( i_command1 == 0 && i_command2 == 0)
1459 else if( p_sys->i_command == i_command1 ||
1460 p_sys->i_command == i_command2 )
1466 switch( p_sys->i_command )
1469 msg_Warn( p_access, "socket closed by server" );
1470 p_access->info.b_eof = 1;
1471 return VLC_EGENERIC;
1473 msg_Warn( p_access, "end of media stream" );
1474 p_access->info.b_eof = 1;
1475 return VLC_EGENERIC;
1481 msg_Warn( p_access, "failed to receive command (aborting)" );
1483 return VLC_EGENERIC;
1487 static int mms_HeaderMediaRead( access_t *p_access, int i_type )
1489 access_sys_t *p_sys = p_access->p_sys;
1492 for( i_count = 0; i_count < MMS_RETRY_MAX; )
1496 if( p_access->b_die )
1499 i_status = mms_ReceivePacket( p_access );
1503 msg_Warn( p_access, "cannot receive header (%d/%d)",
1504 i_count, MMS_RETRY_MAX );
1505 msleep( MMS_RETRY_SLEEP );
1507 else if( i_status == i_type || i_type == MMS_PACKET_ANY )
1511 else if( i_status == MMS_PACKET_CMD )
1513 switch( p_sys->i_command )
1516 msg_Warn( p_access, "socket closed by server" );
1517 p_access->info.b_eof = 1;
1520 msg_Warn( p_access, "end of media stream" );
1521 p_access->info.b_eof = 1;
1524 /* XXX not too dificult to be done EXCEPT that we
1525 * need to restart demuxer... and I don't see how we
1526 * could do that :p */
1528 "reinitialization needed --> unsupported" );
1529 p_access->info.b_eof = VLC_TRUE;
1537 msg_Err( p_access, "cannot receive %s (aborting)",
1538 ( i_type == MMS_PACKET_HEADER ) ? "header" : "media data" );