1 /*****************************************************************************
2 * mms.c: MMS access plug-in
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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
25 /*****************************************************************************
27 *****************************************************************************/
33 #include <vlc_access.h>
43 #ifdef HAVE_SYS_TIME_H
44 # include <sys/time.h>
46 #ifdef HAVE_SYS_TYPES_H
47 # include <sys/types.h>
49 #ifdef HAVE_SYS_STAT_H
50 # include <sys/stat.h>
56 #include <vlc_network.h>
66 /****************************************************************************
68 * MMSProtocole documentation found at http://get.to/sdp
69 ****************************************************************************/
71 /*****************************************************************************
73 *****************************************************************************/
74 int E_( MMSTUOpen ) ( access_t * );
75 void E_( MMSTUClose ) ( access_t * );
78 static ssize_t Read( access_t *, uint8_t *, size_t );
79 static int Seek( access_t *, int64_t );
80 static int Control( access_t *, int, va_list );
82 static int MMSOpen ( access_t *, vlc_url_t *, int );
83 static int MMSStart( access_t *, uint32_t );
84 static int MMSStop ( access_t * );
85 static void MMSClose( access_t * );
88 static int mms_CommandRead( access_t *p_access, int i_command1, int i_command2 );
89 static int mms_CommandSend( access_t *, int, uint32_t, uint32_t, uint8_t *, int );
91 static int mms_HeaderMediaRead( access_t *, int );
93 static int mms_ReceivePacket( access_t * );
96 int E_(MMSTUOpen)( access_t *p_access )
102 /* Set up p_access */
103 p_access->pf_read = Read;
104 p_access->pf_block = NULL;
105 p_access->pf_control = Control;
106 p_access->pf_seek = Seek;
107 p_access->info.i_update = 0;
108 p_access->info.i_size = 0;
109 p_access->info.i_pos = 0;
110 p_access->info.b_eof = false;
111 p_access->info.i_title = 0;
112 p_access->info.i_seekpoint = 0;
113 p_access->p_sys = p_sys = malloc( sizeof( access_sys_t ) );
114 if( !p_sys ) return VLC_ENOMEM;
115 memset( p_sys, 0, sizeof( access_sys_t ) );
117 p_sys->i_timeout = var_CreateGetInteger( p_access, "mms-timeout" );
119 /* *** Parse URL and get server addr/port and path *** */
120 vlc_UrlParse( &p_sys->url, p_access->psz_path, 0 );
121 if( p_sys->url.psz_host == NULL || *p_sys->url.psz_host == '\0' )
123 msg_Err( p_access, "invalid server name" );
124 vlc_UrlClean( &p_sys->url );
128 if( p_sys->url.i_port <= 0 )
130 p_sys->url.i_port = 1755;
133 /* *** connect to this server *** */
134 /* look at requested protocol (udp/tcp) */
135 i_proto = MMS_PROTO_AUTO;
136 if( *p_access->psz_access )
138 if( !strncmp( p_access->psz_access, "mmsu", 4 ) )
140 i_proto = MMS_PROTO_UDP;
142 else if( !strncmp( p_access->psz_access, "mmst", 4 ) )
144 i_proto = MMS_PROTO_TCP;
149 if( i_proto == MMS_PROTO_AUTO )
150 { /* first try with TCP and then UDP*/
151 if( ( i_status = MMSOpen( p_access, &p_sys->url, MMS_PROTO_TCP ) ) )
153 i_status = MMSOpen( p_access, &p_sys->url, MMS_PROTO_UDP );
158 i_status = MMSOpen( p_access, &p_sys->url, i_proto );
163 msg_Err( p_access, "cannot connect to server" );
164 vlc_UrlClean( &p_sys->url );
169 msg_Dbg( p_access, "connected to %s:%d", p_sys->url.psz_host, p_sys->url.i_port );
173 * broadcast yy=0x02, xx= 0x00
174 * pre-recorded yy=0x01, xx= 0x80 if video, 0x00 no video
176 if( p_sys->i_packet_count <= 0 && p_sys->asfh.i_data_packets_count > 0 )
178 p_sys->i_packet_count = p_sys->asfh.i_data_packets_count;
180 if( p_sys->i_packet_count <= 0 || ( p_sys->i_flags_broadcast >> 24 ) == 0x02 )
182 p_sys->b_seekable = false;
186 p_sys->b_seekable = true;
187 p_access->info.i_size =
188 (uint64_t)p_sys->i_header +
189 (uint64_t)p_sys->i_packet_count * (uint64_t)p_sys->i_packet_length;
192 /* *** Start stream *** */
193 if( MMSStart( p_access, 0xffffffff ) < 0 )
195 msg_Err( p_access, "cannot start stream" );
196 E_(MMSTUClose) ( p_access );
202 /*****************************************************************************
203 * Close: free unused data structures
204 *****************************************************************************/
205 void E_(MMSTUClose)( access_t *p_access )
207 access_sys_t *p_sys = p_access->p_sys;
209 /* close connection with server */
210 MMSClose( p_access );
213 vlc_UrlClean( &p_sys->url );
218 /*****************************************************************************
220 *****************************************************************************/
221 static int Control( access_t *p_access, int i_query, va_list args )
223 access_sys_t *p_sys = p_access->p_sys;
233 case ACCESS_CAN_SEEK:
234 pb_bool = (bool*)va_arg( args, bool* );
235 *pb_bool = p_sys->b_seekable;
238 case ACCESS_CAN_FASTSEEK:
239 case ACCESS_CAN_PAUSE:
240 pb_bool = (bool*)va_arg( args, bool* );
244 case ACCESS_CAN_CONTROL_PACE:
245 pb_bool = (bool*)va_arg( args, bool* );
247 #if 0 /* Disable for now until we have a clock synchro algo
248 * which works with something else than MPEG over UDP */
256 pi_int = (int*)va_arg( args, int * );
257 *pi_int = 3 * p_sys->i_packet_length;
260 case ACCESS_GET_PTS_DELAY:
261 pi_64 = (int64_t*)va_arg( args, int64_t * );
262 var_Get( p_access, "mms-caching", &val );
263 *pi_64 = (int64_t)var_GetInteger( p_access, "mms-caching" ) * I64C(1000);
266 case ACCESS_GET_PRIVATE_ID_STATE:
267 i_int = (int)va_arg( args, int );
268 pb_bool = (bool *)va_arg( args, bool * );
270 if( i_int < 0 || i_int > 127 )
272 *pb_bool = p_sys->asfh.stream[i_int].i_selected ? true : false;
276 case ACCESS_SET_PAUSE_STATE:
277 case ACCESS_GET_TITLE_INFO:
278 case ACCESS_SET_TITLE:
279 case ACCESS_SET_SEEKPOINT:
280 case ACCESS_SET_PRIVATE_ID_STATE:
281 case ACCESS_GET_CONTENT_TYPE:
286 msg_Warn( p_access, "unimplemented query in control" );
293 /*****************************************************************************
294 * Seek: try to go at the right place
295 *****************************************************************************/
296 static int Seek( access_t * p_access, int64_t i_pos )
298 access_sys_t *p_sys = p_access->p_sys;
306 if( i_pos < p_sys->i_header)
309 if( p_access->info.i_pos < p_sys->i_header )
311 /* no need to restart stream, it was already one
312 * or no stream was yet read */
313 p_access->info.i_pos = i_pos;
318 i_packet = 0xffffffff;
324 i_packet = ( i_pos - p_sys->i_header ) / p_sys->i_packet_length;
325 i_offset = ( i_pos - p_sys->i_header ) % p_sys->i_packet_length;
327 msg_Dbg( p_access, "seeking to "I64Fd " (packet:%d)", i_pos, i_packet );
330 msg_Dbg( p_access, "stream stopped (seek)" );
332 /* *** restart stream *** */
333 var_buffer_initwrite( &buffer, 0 );
334 var_buffer_add64( &buffer, 0 ); /* seek point in second */
335 var_buffer_add32( &buffer, 0xffffffff );
336 var_buffer_add32( &buffer, i_packet ); // begin from start
337 var_buffer_add8( &buffer, 0xff ); // stream time limit
338 var_buffer_add8( &buffer, 0xff ); // on 3bytes ...
339 var_buffer_add8( &buffer, 0xff ); //
340 var_buffer_add8( &buffer, 0x00 ); // don't use limit
341 var_buffer_add32( &buffer, p_sys->i_media_packet_id_type );
343 mms_CommandSend( p_access, 0x07, p_sys->i_command_level, 0x0001ffff,
344 buffer.p_data, buffer.i_data );
346 var_buffer_free( &buffer );
349 while( !p_access->b_die )
351 if( mms_HeaderMediaRead( p_access, MMS_PACKET_CMD ) < 0 )
353 p_access->info.b_eof = true;
357 if( p_sys->i_command == 0x1e )
359 msg_Dbg( p_access, "received 0x1e (seek)" );
364 while( !p_access->b_die )
366 if( mms_HeaderMediaRead( p_access, MMS_PACKET_CMD ) < 0 )
368 p_access->info.b_eof = true;
371 if( p_sys->i_command == 0x05 )
373 msg_Dbg( p_access, "received 0x05 (seek)" );
379 if( mms_HeaderMediaRead( p_access, MMS_PACKET_MEDIA ) < 0 )
381 p_access->info.b_eof = true;
385 msg_Dbg( p_access, "Streaming restarted" );
387 p_sys->i_media_used += i_offset;
388 p_access->info.i_pos = i_pos;
389 p_access->info.b_eof = false;
394 /*****************************************************************************
396 *****************************************************************************/
397 static ssize_t Read( access_t *p_access, uint8_t *p_buffer, size_t i_len )
399 access_sys_t *p_sys = p_access->p_sys;
405 /* *** now send data if needed *** */
406 while( i_data < i_len )
408 if( p_access->info.i_pos < p_sys->i_header )
410 i_copy = __MIN( i_len, p_sys->i_header - p_access->info.i_pos );
411 memcpy( &p_buffer[i_data], &p_sys->p_header[p_access->info.i_pos], i_copy );
413 p_access->info.i_pos += i_copy;
415 else if( p_sys->i_media_used < p_sys->i_media )
417 i_copy = __MIN( i_len - i_data ,
418 p_sys->i_media - p_sys->i_media_used );
419 memcpy( &p_buffer[i_data], &p_sys->p_media[p_sys->i_media_used], i_copy );
421 p_sys->i_media_used += i_copy;
422 p_access->info.i_pos += i_copy;
424 else if( p_sys->p_media != NULL &&
425 p_sys->i_media_used < p_sys->i_packet_length )
427 i_copy = __MIN( i_len - i_data,
428 p_sys->i_packet_length - p_sys->i_media_used);
429 memset( &p_buffer[i_data], 0, i_copy );
432 p_sys->i_media_used += i_copy;
433 p_access->info.i_pos += i_copy;
435 else if( p_access->info.b_eof ||
436 mms_HeaderMediaRead( p_access, MMS_PACKET_MEDIA ) < 0 )
445 /****************************************************************************
446 * MMSOpen : Open a connection with the server over mmst or mmsu
447 ****************************************************************************/
448 static int MMSOpen( access_t *p_access, vlc_url_t *p_url, int i_proto )
450 access_sys_t *p_sys = p_access->p_sys;
451 int b_udp = ( i_proto == MMS_PROTO_UDP ) ? 1 : 0;
456 int i_server_version;
458 int i_update_player_url;
459 int i_encryption_type;
465 /* *** Open a TCP connection with server *** */
466 msg_Dbg( p_access, "waiting for connection..." );
467 p_sys->i_handle_tcp = net_ConnectTCP( p_access, p_url->psz_host, p_url->i_port );
468 if( p_sys->i_handle_tcp < 0 )
470 msg_Err( p_access, "failed to open a connection (tcp)" );
474 "connection(tcp) with \"%s:%d\" successful",
478 /* *** Bind port if UDP protocol is selected *** */
481 if( net_GetSockAddress( p_sys->i_handle_tcp, p_sys->sz_bind_addr,
484 net_Close( p_sys->i_handle_tcp );
488 p_sys->i_handle_udp = net_ListenUDP1( (vlc_object_t *)p_access, p_sys->sz_bind_addr,
490 if( p_sys->i_handle_udp < 0 )
492 msg_Err( p_access, "failed to open a connection (udp)" );
493 net_Close( p_sys->i_handle_tcp );
497 "connection(udp) at \"%s:%d\" successful",
498 p_sys->sz_bind_addr, 7000 );
501 /* *** Init context for mms prototcol *** */
502 E_( GenerateGuid )( &p_sys->guid ); /* used to identify client by server */
504 "generated guid: "GUID_FMT,
505 GUID_PRINT( p_sys->guid ) );
506 p_sys->i_command_level = 1; /* updated after 0x1A command */
507 p_sys->i_seq_num = 0;
508 p_sys->i_media_packet_id_type = 0x04;
509 p_sys->i_header_packet_id_type = 0x02;
510 p_sys->i_proto = i_proto;
511 p_sys->i_packet_seq_num = 0;
512 p_sys->p_header = NULL;
514 p_sys->p_media = NULL;
516 p_sys->i_media_used = 0;
518 p_access->info.i_pos = 0;
519 p_sys->i_buffer_tcp = 0;
520 p_sys->i_buffer_udp = 0;
523 p_access->info.b_eof = false;
525 /* *** send command 1 : connection request *** */
526 var_buffer_initwrite( &buffer, 0 );
527 var_buffer_add16( &buffer, 0x001c );
528 var_buffer_add16( &buffer, 0x0003 );
530 "NSPlayer/7.0.0.1956; {"GUID_FMT"}; Host: %s",
531 GUID_PRINT( p_sys->guid ),
533 var_buffer_addUTF16( &buffer, tmp );
535 mms_CommandSend( p_access,
536 0x01, /* connexion request */
537 0x00000000, /* flags, FIXME */
538 0x0004000b, /* ???? */
542 if( mms_CommandRead( p_access, 0x01, 0 ) < 0 )
544 var_buffer_free( &buffer );
545 MMSClose( p_access );
549 i_server_version = GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 32 );
550 i_tool_version = GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 36 );
551 i_update_player_url = GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 40 );
552 i_encryption_type = GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 44 );
553 p = (uint16_t*)( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 48 );
554 #define GETUTF16( psz, size ) \
557 psz = malloc( size + 1); \
558 for( i = 0; i < size; i++ ) \
565 GETUTF16( p_sys->psz_server_version, i_server_version );
566 GETUTF16( p_sys->psz_tool_version, i_tool_version );
567 GETUTF16( p_sys->psz_update_player_url, i_update_player_url );
568 GETUTF16( p_sys->psz_encryption_type, i_encryption_type );
571 "0x01 --> server_version:\"%s\" tool_version:\"%s\" update_player_url:\"%s\" encryption_type:\"%s\"",
572 p_sys->psz_server_version,
573 p_sys->psz_tool_version,
574 p_sys->psz_update_player_url,
575 p_sys->psz_encryption_type );
577 /* *** should make an 18 command to make data timing *** */
579 /* *** send command 2 : transport protocol selection *** */
580 var_buffer_reinitwrite( &buffer, 0 );
581 var_buffer_add32( &buffer, 0x00000000 );
582 var_buffer_add32( &buffer, 0x000a0000 );
583 var_buffer_add32( &buffer, 0x00000002 );
593 sprintf( tmp, "\\\\192.168.0.1\\TCP\\1242" );
595 var_buffer_addUTF16( &buffer, tmp );
596 var_buffer_add16( &buffer, '0' );
598 mms_CommandSend( p_access,
599 0x02, /* connexion request */
600 0x00000000, /* flags, FIXME */
601 0xffffffff, /* ???? */
605 /* *** response from server, should be 0x02 or 0x03 *** */
606 mms_CommandRead( p_access, 0x02, 0x03 );
607 if( p_sys->i_command == 0x03 )
610 "%s protocol selection failed", b_udp ? "UDP" : "TCP" );
611 var_buffer_free( &buffer );
612 MMSClose( p_access );
615 else if( p_sys->i_command != 0x02 )
617 msg_Warn( p_access, "received command isn't 0x02 in reponse to 0x02" );
620 /* *** send command 5 : media file name/path requested *** */
621 var_buffer_reinitwrite( &buffer, 0 );
622 var_buffer_add64( &buffer, 0 );
623 var_buffer_addUTF16( &buffer, p_url->psz_path );
625 mms_CommandSend( p_access,
627 p_sys->i_command_level,
632 /* *** wait for reponse *** */
633 mms_CommandRead( p_access, 0x1a, 0x06 );
635 /* test if server send 0x1A answer */
636 if( p_sys->i_command == 0x1A )
638 msg_Err( p_access, "id/password requested (not yet supported)" );
640 var_buffer_free( &buffer );
641 MMSClose( p_access );
644 if( p_sys->i_command != 0x06 )
647 "unknown answer (0x%x instead of 0x06)",
649 var_buffer_free( &buffer );
650 MMSClose( p_access );
654 /* 1 for file ok, 2 for authen ok */
655 switch( GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE ) )
658 msg_Dbg( p_access, "media file name/path accepted" );
661 msg_Dbg( p_access, "authentication accepted" );
665 msg_Err( p_access, "error while asking for file %d",
666 GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE ) );
667 var_buffer_free( &buffer );
668 MMSClose( p_access );
672 p_sys->i_flags_broadcast =
673 GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 12 );
674 p_sys->i_media_length =
675 GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 24 );
676 p_sys->i_packet_length =
677 GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 44 );
678 p_sys->i_packet_count =
679 GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 48 );
680 p_sys->i_max_bit_rate =
681 GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 56 );
682 p_sys->i_header_size =
683 GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 60 );
686 "answer 0x06 flags:0x%8.8x media_length:%us "
687 "packet_length:%ul packet_count:%d max_bit_rate:%d "
689 p_sys->i_flags_broadcast,
690 p_sys->i_media_length,
691 (unsigned)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 successful" );
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 if( mms_HeaderMediaRead( p_access, MMS_PACKET_MEDIA ) < 0 )
879 msg_Dbg( p_access, "streaming started" );
884 /****************************************************************************
885 * MMSStop : Stop streaming
886 ****************************************************************************/
887 static int MMSStop( access_t *p_access )
889 access_sys_t *p_sys = p_access->p_sys;
891 /* *** stop stream but keep connection alive *** */
892 mms_CommandSend( p_access,
894 p_sys->i_command_level,
900 /****************************************************************************
901 * MMSClose : Close streaming and connection
902 ****************************************************************************/
903 static void MMSClose( access_t *p_access )
905 access_sys_t *p_sys = p_access->p_sys;
907 msg_Dbg( p_access, "Connection closed" );
909 /* *** tell server that we will disconnect *** */
910 mms_CommandSend( p_access,
912 p_sys->i_command_level,
916 /* *** close sockets *** */
917 net_Close( p_sys->i_handle_tcp );
918 if( p_sys->i_proto == MMS_PROTO_UDP )
920 net_Close( p_sys->i_handle_udp );
923 FREENULL( p_sys->p_cmd );
924 FREENULL( p_sys->p_media );
925 FREENULL( p_sys->p_header );
927 FREENULL( p_sys->psz_server_version );
928 FREENULL( p_sys->psz_tool_version );
929 FREENULL( p_sys->psz_update_player_url );
930 FREENULL( p_sys->psz_encryption_type );
933 /****************************************************************************
935 * MMS specific functions
937 ****************************************************************************/
938 static int mms_CommandSend( access_t *p_access, int i_command,
939 uint32_t i_prefix1, uint32_t i_prefix2,
940 uint8_t *p_data, int i_data_old )
943 access_sys_t *p_sys = p_access->p_sys;
944 int i_data_by8, i_ret;
945 int i_data = i_data_old;
947 while( i_data & 0x7 ) i_data++;
948 i_data_by8 = i_data >> 3;
950 /* first init buffer */
951 var_buffer_initwrite( &buffer, 0 );
953 var_buffer_add32( &buffer, 0x00000001 ); /* start sequence */
954 var_buffer_add32( &buffer, 0xB00BFACE );
955 /* size after protocol type */
956 var_buffer_add32( &buffer, i_data + MMS_CMD_HEADERSIZE - 16 );
957 var_buffer_add32( &buffer, 0x20534d4d ); /* protocol "MMS " */
958 var_buffer_add32( &buffer, i_data_by8 + 4 );
959 var_buffer_add32( &buffer, p_sys->i_seq_num ); p_sys->i_seq_num++;
960 var_buffer_add64( &buffer, 0 );
961 var_buffer_add32( &buffer, i_data_by8 + 2 );
962 var_buffer_add32( &buffer, 0x00030000 | i_command ); /* dir | command */
963 var_buffer_add32( &buffer, i_prefix1 ); /* command specific */
964 var_buffer_add32( &buffer, i_prefix2 ); /* command specific */
966 /* specific command data */
967 if( p_data && i_data > 0 )
969 var_buffer_addmemory( &buffer, p_data, i_data_old );
972 /* Append padding to the command data */
973 var_buffer_add64( &buffer, 0 );
976 i_ret = net_Write( p_access, p_sys->i_handle_tcp, NULL, buffer.p_data,
977 buffer.i_data - ( 8 - ( i_data - i_data_old ) ) );
978 if( i_ret != buffer.i_data - ( 8 - ( i_data - i_data_old ) ) )
980 msg_Err( p_access, "failed to send command" );
984 var_buffer_free( &buffer );
988 static int NetFillBuffer( access_t *p_access )
994 access_sys_t *p_sys = p_access->p_sys;
996 struct pollfd ufd[2];
997 unsigned timeout, nfd;
999 /* FIXME when using udp */
1000 ssize_t i_tcp, i_udp;
1001 ssize_t i_tcp_read, i_udp_read;
1004 i_tcp = MMS_BUFFER_SIZE/2 - p_sys->i_buffer_tcp;
1006 if( p_sys->i_proto == MMS_PROTO_UDP )
1008 i_udp = MMS_BUFFER_SIZE/2 - p_sys->i_buffer_udp;
1012 i_udp = 0; /* there isn't udp socket */
1015 if( ( i_udp <= 0 ) && ( i_tcp <= 0 ) )
1017 msg_Warn( p_access, "nothing to read %d:%d", (int)i_tcp, (int)i_udp );
1022 /* msg_Warn( p_access, "ask for tcp:%d udp:%d", i_tcp, i_udp ); */
1025 /* Find if some data is available */
1030 /* Initialize file descriptor set */
1031 memset (ufd, 0, sizeof (ufd));
1036 ufd[nfd].fd = p_sys->i_handle_tcp;
1037 ufd[nfd].events = POLLIN;
1042 ufd[nfd].fd = p_sys->i_handle_tcp;
1043 ufd[nfd].events = POLLIN;
1047 /* We'll wait 0.5 second if nothing happens */
1050 if( i_try * timeout > p_sys->i_timeout )
1052 msg_Err(p_access, "no data received");
1056 if( i_try > 3 && (p_sys->i_buffer_tcp > 0 || p_sys->i_buffer_udp > 0) )
1061 if( p_access->b_die || p_access->b_error ) return -1;
1063 //msg_Dbg( p_access, "NetFillBuffer: trying again (select)" );
1065 } while( !(i_ret = poll( ufd, nfd, timeout)) ||
1066 (i_ret < 0 && errno == EINTR) );
1070 msg_Err( p_access, "network poll error (%m)" );
1074 i_tcp_read = i_udp_read = 0;
1076 if( ( i_tcp > 0 ) && ufd[0].revents )
1079 recv( p_sys->i_handle_tcp,
1080 p_sys->buffer_tcp + p_sys->i_buffer_tcp,
1081 i_tcp + MMS_BUFFER_SIZE/2, 0 );
1084 if( i_udp > 0 && ufd[i_tcp > 0].revents )
1086 i_udp_read = recv( p_sys->i_handle_udp,
1087 p_sys->buffer_udp + p_sys->i_buffer_udp,
1088 i_udp + MMS_BUFFER_SIZE/2, 0 );
1092 if( p_sys->i_proto == MMS_PROTO_UDP )
1094 msg_Dbg( p_access, "filling buffer TCP:%d+%d UDP:%d+%d",
1095 p_sys->i_buffer_tcp, i_tcp_read,
1096 p_sys->i_buffer_udp, i_udp_read );
1100 msg_Dbg( p_access, "filling buffer TCP:%d+%d",
1101 p_sys->i_buffer_tcp, i_tcp_read );
1105 if( i_tcp_read > 0 ) p_sys->i_buffer_tcp += i_tcp_read;
1106 if( i_udp_read > 0 ) p_sys->i_buffer_udp += i_udp_read;
1108 return i_tcp_read + i_udp_read;
1112 static int mms_ParseCommand( access_t *p_access,
1117 #define GET32( i_pos ) \
1118 ( p_sys->p_cmd[i_pos] + ( p_sys->p_cmd[i_pos +1] << 8 ) + \
1119 ( p_sys->p_cmd[i_pos + 2] << 16 ) + \
1120 ( p_sys->p_cmd[i_pos + 3] << 24 ) )
1122 access_sys_t *p_sys = p_access->p_sys;
1126 free( p_sys->p_cmd );
1127 p_sys->i_cmd = i_data;
1128 p_sys->p_cmd = malloc( i_data );
1129 memcpy( p_sys->p_cmd, p_data, i_data );
1131 *pi_used = i_data; /* by default */
1133 if( i_data < MMS_CMD_HEADERSIZE )
1135 msg_Warn( p_access, "truncated command (header incomplete)" );
1136 p_sys->i_command = 0;
1139 i_id = GetDWLE( p_data + 4 );
1140 i_length = GetDWLE( p_data + 8 ) + 16;
1142 if( i_id != 0xb00bface )
1145 "incorrect command header (0x%x)", i_id );
1146 p_sys->i_command = 0;
1150 if( i_length > p_sys->i_cmd )
1153 "truncated command (missing %d bytes)",
1154 i_length - i_data );
1155 p_sys->i_command = 0;
1158 else if( i_length < p_sys->i_cmd )
1160 p_sys->i_cmd = i_length;
1161 *pi_used = i_length;
1165 "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",
1169 /* 12: protocol type "MMS " */
1172 /* 24: unknown (0) */
1173 /* 28: unknown (0) */
1179 p_sys->i_command = GET32( 36 ) & 0xffff;
1182 return MMS_PACKET_CMD;
1185 static int mms_ParsePacket( access_t *p_access,
1186 uint8_t *p_data, size_t i_data,
1189 access_sys_t *p_sys = p_access->p_sys;
1190 int i_packet_seq_num;
1191 size_t i_packet_length;
1192 uint32_t i_packet_id;
1197 *pi_used = i_data; /* default */
1200 msg_Warn( p_access, "truncated packet (header incomplete)" );
1204 i_packet_id = p_data[4];
1205 i_packet_seq_num = GetDWLE( p_data );
1206 i_packet_length = GetWLE( p_data + 6 );
1208 //msg_Warn( p_access, "------->i_packet_length=%d, i_data=%d", i_packet_length, i_data );
1210 if( i_packet_length > i_data || i_packet_length <= 8)
1212 /* msg_Dbg( p_access,
1213 "truncated packet (Declared %d bytes, Actual %d bytes)",
1214 i_packet_length, i_data ); */
1218 else if( i_packet_length < i_data )
1220 *pi_used = i_packet_length;
1223 if( i_packet_id == 0xff )
1226 "receive MMS UDP pair timing" );
1227 return( MMS_PACKET_UDP_TIMING );
1230 if( i_packet_id != p_sys->i_header_packet_id_type &&
1231 i_packet_id != p_sys->i_media_packet_id_type )
1233 msg_Warn( p_access, "incorrect Packet Id Type (0x%x)", i_packet_id );
1237 /* we now have a media or a header packet */
1238 p_packet = malloc( i_packet_length - 8 ); // don't bother with preheader
1239 memcpy( p_packet, p_data + 8, i_packet_length - 8 );
1241 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 );
1251 p_sys->i_packet_seq_num = i_packet_seq_num + 1;
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 FREENULL( 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 bool b_refill = 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 (uint32_t)p_sys->i_buffer_tcp )
1312 else if( GetWLE( p_sys->buffer_tcp + 6 ) <= p_sys->i_buffer_tcp )
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 )
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 = true;
1471 return VLC_EGENERIC;
1473 msg_Warn( p_access, "end of media stream" );
1474 p_access->info.b_eof = true;
1475 return VLC_EGENERIC;
1481 p_access->info.b_eof = true;
1482 msg_Warn( p_access, "failed to receive command (aborting)" );
1484 return VLC_EGENERIC;
1488 static int mms_HeaderMediaRead( access_t *p_access, int i_type )
1490 access_sys_t *p_sys = p_access->p_sys;
1493 for( i_count = 0; i_count < MMS_RETRY_MAX; )
1497 if( p_access->b_die )
1500 i_status = mms_ReceivePacket( p_access );
1504 msg_Warn( p_access, "cannot receive header (%d/%d)",
1505 i_count, MMS_RETRY_MAX );
1506 msleep( MMS_RETRY_SLEEP );
1508 else if( i_status == i_type || i_type == MMS_PACKET_ANY )
1512 else if( i_status == MMS_PACKET_CMD )
1514 switch( p_sys->i_command )
1517 msg_Warn( p_access, "socket closed by server" );
1518 p_access->info.b_eof = true;
1521 msg_Warn( p_access, "end of media stream" );
1522 p_access->info.b_eof = true;
1525 /* XXX not too dificult to be done EXCEPT that we
1526 * need to restart demuxer... and I don't see how we
1527 * could do that :p */
1529 "reinitialization needed --> unsupported" );
1530 p_access->info.b_eof = true;
1538 msg_Err( p_access, "cannot receive %s (aborting)",
1539 ( i_type == MMS_PACKET_HEADER ) ? "header" : "media data" );
1540 p_access->info.b_eof = true;