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 *****************************************************************************/
30 #include <vlc_access.h>
41 #ifdef HAVE_SYS_TIME_H
42 # include <sys/time.h>
44 #ifdef HAVE_SYS_TYPES_H
45 # include <sys/types.h>
47 #ifdef HAVE_SYS_STAT_H
48 # include <sys/stat.h>
51 #include <vlc_network.h>
61 /****************************************************************************
63 * MMSProtocole documentation found at http://get.to/sdp
64 ****************************************************************************/
66 /*****************************************************************************
68 *****************************************************************************/
69 int E_( MMSTUOpen ) ( access_t * );
70 void E_( MMSTUClose ) ( access_t * );
73 static int Read( access_t *, uint8_t *, int );
74 static int Seek( access_t *, int64_t );
75 static int Control( access_t *, int, va_list );
77 static int MMSOpen ( access_t *, vlc_url_t *, int );
78 static int MMSStart( access_t *, uint32_t );
79 static int MMSStop ( access_t * );
80 static void MMSClose( access_t * );
83 static int mms_CommandRead( access_t *p_access, int i_command1, int i_command2 );
84 static int mms_CommandSend( access_t *, int, uint32_t, uint32_t, uint8_t *, int );
86 static int mms_HeaderMediaRead( access_t *, int );
88 static int mms_ReceivePacket( access_t * );
92 * XXX DON'T FREE MY MEMORY !!! XXX
96 * Ok, ok, j'le ferai plus...
102 * Vous pourriez signer vos commentaires (m�e si on voit bien qui peut
103 * �rire ce genre de trucs :p), et �rire en anglais, bordel de
107 * Alors la ouai �est fou les gens qui �rivent des commentaires sans les
108 * signer. Ca m�iterait un coup de pied dans le cul � :)
111 int E_(MMSTUOpen)( access_t *p_access )
117 /* Set up p_access */
118 p_access->pf_read = Read;
119 p_access->pf_block = NULL;
120 p_access->pf_control = Control;
121 p_access->pf_seek = Seek;
122 p_access->info.i_update = 0;
123 p_access->info.i_size = 0;
124 p_access->info.i_pos = 0;
125 p_access->info.b_eof = VLC_FALSE;
126 p_access->info.i_title = 0;
127 p_access->info.i_seekpoint = 0;
128 p_access->p_sys = p_sys = malloc( sizeof( access_sys_t ) );
129 memset( p_sys, 0, sizeof( access_sys_t ) );
131 /* *** Parse URL and get server addr/port and path *** */
132 vlc_UrlParse( &p_sys->url, p_access->psz_path, 0 );
133 if( p_sys->url.psz_host == NULL || *p_sys->url.psz_host == '\0' )
135 msg_Err( p_access, "invalid server name" );
136 vlc_UrlClean( &p_sys->url );
139 if( p_sys->url.i_port <= 0 )
141 p_sys->url.i_port = 1755;
144 /* *** connect to this server *** */
145 /* look at requested protocol (udp/tcp) */
146 i_proto = MMS_PROTO_AUTO;
147 if( *p_access->psz_access )
149 if( !strncmp( p_access->psz_access, "mmsu", 4 ) )
151 i_proto = MMS_PROTO_UDP;
153 else if( !strncmp( p_access->psz_access, "mmst", 4 ) )
155 i_proto = MMS_PROTO_TCP;
160 if( i_proto == MMS_PROTO_AUTO )
161 { /* first try with TCP and then UDP*/
162 if( ( i_status = MMSOpen( p_access, &p_sys->url, MMS_PROTO_TCP ) ) )
164 i_status = MMSOpen( p_access, &p_sys->url, MMS_PROTO_UDP );
169 i_status = MMSOpen( p_access, &p_sys->url, i_proto );
174 msg_Err( p_access, "cannot connect to server" );
175 vlc_UrlClean( &p_sys->url );
179 msg_Dbg( p_access, "connected to %s:%d", p_sys->url.psz_host, p_sys->url.i_port );
183 * broadcast yy=0x02, xx= 0x00
184 * pre-recorded yy=0x01, xx= 0x80 if video, 0x00 no video
186 if( p_sys->i_packet_count <= 0 && p_sys->asfh.i_data_packets_count > 0 )
188 p_sys->i_packet_count = p_sys->asfh.i_data_packets_count;
190 if( p_sys->i_packet_count <= 0 || ( p_sys->i_flags_broadcast >> 24 ) == 0x02 )
192 p_sys->b_seekable = VLC_FALSE;
196 p_sys->b_seekable = VLC_TRUE;
197 p_access->info.i_size =
198 (uint64_t)p_sys->i_header +
199 (uint64_t)p_sys->i_packet_count * (uint64_t)p_sys->i_packet_length;
202 /* *** Start stream *** */
203 if( MMSStart( p_access, 0xffffffff ) < 0 )
205 msg_Err( p_access, "cannot start stream" );
206 MMSClose( p_access );
207 vlc_UrlClean( &p_sys->url );
213 /*****************************************************************************
214 * Close: free unused data structures
215 *****************************************************************************/
216 void E_(MMSTUClose)( access_t *p_access )
218 access_sys_t *p_sys = p_access->p_sys;
220 /* close connection with server */
221 MMSClose( p_access );
224 vlc_UrlClean( &p_sys->url );
229 /*****************************************************************************
231 *****************************************************************************/
232 static int Control( access_t *p_access, int i_query, va_list args )
234 access_sys_t *p_sys = p_access->p_sys;
244 case ACCESS_CAN_SEEK:
245 pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t* );
246 *pb_bool = p_sys->b_seekable;
249 case ACCESS_CAN_FASTSEEK:
250 case ACCESS_CAN_PAUSE:
251 pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t* );
252 *pb_bool = VLC_FALSE;
255 case ACCESS_CAN_CONTROL_PACE:
256 pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t* );
258 #if 0 /* Disable for now until we have a clock synchro algo
259 * which works with something else than MPEG over UDP */
260 *pb_bool = VLC_FALSE;
267 pi_int = (int*)va_arg( args, int * );
268 *pi_int = 3 * p_sys->i_packet_length;
271 case ACCESS_GET_PTS_DELAY:
272 pi_64 = (int64_t*)va_arg( args, int64_t * );
273 var_Get( p_access, "mms-caching", &val );
274 *pi_64 = (int64_t)var_GetInteger( p_access, "mms-caching" ) * I64C(1000);
277 case ACCESS_GET_PRIVATE_ID_STATE:
278 i_int = (int)va_arg( args, int );
279 pb_bool = (vlc_bool_t *)va_arg( args, vlc_bool_t * );
281 if( i_int < 0 || i_int > 127 )
283 *pb_bool = p_sys->asfh.stream[i_int].i_selected ? VLC_TRUE : VLC_FALSE;
287 case ACCESS_SET_PAUSE_STATE:
288 case ACCESS_GET_TITLE_INFO:
289 case ACCESS_SET_TITLE:
290 case ACCESS_SET_SEEKPOINT:
291 case ACCESS_SET_PRIVATE_ID_STATE:
296 msg_Warn( p_access, "unimplemented query in control" );
303 /*****************************************************************************
304 * Seek: try to go at the right place
305 *****************************************************************************/
306 static int Seek( access_t * p_access, int64_t i_pos )
308 access_sys_t *p_sys = p_access->p_sys;
316 if( i_pos < p_sys->i_header)
319 if( p_access->info.i_pos < p_sys->i_header )
321 /* no need to restart stream, it was already one
322 * or no stream was yet read */
323 p_access->info.i_pos = i_pos;
328 i_packet = 0xffffffff;
334 i_packet = ( i_pos - p_sys->i_header ) / p_sys->i_packet_length;
335 i_offset = ( i_pos - p_sys->i_header ) % p_sys->i_packet_length;
337 msg_Dbg( p_access, "seeking to "I64Fd " (packet:%d)", i_pos, i_packet );
340 msg_Dbg( p_access, "stream stopped (seek)" );
342 /* *** restart stream *** */
343 var_buffer_initwrite( &buffer, 0 );
344 var_buffer_add64( &buffer, 0 ); /* seek point in second */
345 var_buffer_add32( &buffer, 0xffffffff );
346 var_buffer_add32( &buffer, i_packet ); // begin from start
347 var_buffer_add8( &buffer, 0xff ); // stream time limit
348 var_buffer_add8( &buffer, 0xff ); // on 3bytes ...
349 var_buffer_add8( &buffer, 0xff ); //
350 var_buffer_add8( &buffer, 0x00 ); // don't use limit
351 var_buffer_add32( &buffer, p_sys->i_media_packet_id_type );
353 mms_CommandSend( p_access, 0x07, p_sys->i_command_level, 0x0001ffff,
354 buffer.p_data, buffer.i_data );
356 var_buffer_free( &buffer );
359 while( !p_access->b_die )
361 mms_HeaderMediaRead( p_access, MMS_PACKET_CMD );
362 if( p_sys->i_command == 0x1e )
364 msg_Dbg( p_access, "received 0x1e (seek)" );
369 while( !p_access->b_die )
371 mms_HeaderMediaRead( p_access, MMS_PACKET_CMD );
372 if( p_sys->i_command == 0x05 )
374 msg_Dbg( p_access, "received 0x05 (seek)" );
380 mms_HeaderMediaRead( p_access, MMS_PACKET_MEDIA );
381 msg_Dbg( p_access, "Streaming restarted" );
383 p_sys->i_media_used += i_offset;
384 p_access->info.i_pos = i_pos;
385 p_access->info.b_eof = VLC_FALSE;
390 /*****************************************************************************
392 *****************************************************************************/
393 static int Read( access_t *p_access, uint8_t *p_buffer, int i_len )
395 access_sys_t *p_sys = p_access->p_sys;
401 /* *** now send data if needed *** */
402 while( i_data < (size_t)i_len )
404 if( p_access->info.i_pos < p_sys->i_header )
406 i_copy = __MIN( i_len, p_sys->i_header - p_access->info.i_pos );
407 memcpy( &p_buffer[i_data], &p_sys->p_header[p_access->info.i_pos], i_copy );
409 p_access->info.i_pos += i_copy;
411 else if( p_sys->i_media_used < p_sys->i_media )
413 i_copy = __MIN( i_len - i_data ,
414 p_sys->i_media - p_sys->i_media_used );
415 memcpy( &p_buffer[i_data], &p_sys->p_media[p_sys->i_media_used], i_copy );
417 p_sys->i_media_used += i_copy;
418 p_access->info.i_pos += i_copy;
420 else if( p_sys->p_media != NULL &&
421 p_sys->i_media_used < p_sys->i_packet_length )
423 i_copy = __MIN( i_len - i_data,
424 p_sys->i_packet_length - p_sys->i_media_used);
425 memset( &p_buffer[i_data], 0, i_copy );
428 p_sys->i_media_used += i_copy;
429 p_access->info.i_pos += i_copy;
431 else if( p_access->info.b_eof ||
432 mms_HeaderMediaRead( p_access, MMS_PACKET_MEDIA ) < 0 )
441 /****************************************************************************
442 * MMSOpen : Open a connection with the server over mmst or mmsu
443 ****************************************************************************/
444 static int MMSOpen( access_t *p_access, vlc_url_t *p_url, int i_proto )
446 access_sys_t *p_sys = p_access->p_sys;
447 int b_udp = ( i_proto == MMS_PROTO_UDP ) ? 1 : 0;
452 int i_server_version;
454 int i_update_player_url;
455 int i_encryption_type;
461 /* *** Open a TCP connection with server *** */
462 msg_Dbg( p_access, "waiting for connection..." );
463 p_sys->i_handle_tcp = net_ConnectTCP( p_access, p_url->psz_host, p_url->i_port );
464 if( p_sys->i_handle_tcp < 0 )
466 msg_Err( p_access, "failed to open a connection (tcp)" );
470 "connection(tcp) with \"%s:%d\" successful",
474 /* *** Bind port if UDP protocol is selected *** */
477 if( net_GetSockAddress( p_sys->i_handle_tcp, p_sys->sz_bind_addr,
480 net_Close( p_sys->i_handle_tcp );
484 p_sys->i_handle_udp = net_ListenUDP1( p_access, p_sys->sz_bind_addr,
486 if( p_sys->i_handle_udp < 0 )
488 msg_Err( p_access, "failed to open a connection (udp)" );
489 net_Close( p_sys->i_handle_tcp );
493 "connection(udp) at \"%s:%d\" successful",
494 p_sys->sz_bind_addr, 7000 );
497 /* *** Init context for mms prototcol *** */
498 E_( GenerateGuid )( &p_sys->guid ); /* used to identify client by server */
500 "generated guid: "GUID_FMT,
501 GUID_PRINT( p_sys->guid ) );
502 p_sys->i_command_level = 1; /* updated after 0x1A command */
503 p_sys->i_seq_num = 0;
504 p_sys->i_media_packet_id_type = 0x04;
505 p_sys->i_header_packet_id_type = 0x02;
506 p_sys->i_proto = i_proto;
507 p_sys->i_packet_seq_num = 0;
508 p_sys->p_header = NULL;
510 p_sys->p_media = NULL;
512 p_sys->i_media_used = 0;
514 p_access->info.i_pos = 0;
515 p_sys->i_buffer_tcp = 0;
516 p_sys->i_buffer_udp = 0;
519 p_access->info.b_eof = 0;
521 /* *** send command 1 : connection request *** */
522 var_buffer_initwrite( &buffer, 0 );
523 var_buffer_add16( &buffer, 0x001c );
524 var_buffer_add16( &buffer, 0x0003 );
526 "NSPlayer/7.0.0.1956; {"GUID_FMT"}; Host: %s",
527 GUID_PRINT( p_sys->guid ),
529 var_buffer_addUTF16( &buffer, tmp );
531 mms_CommandSend( p_access,
532 0x01, /* connexion request */
533 0x00000000, /* flags, FIXME */
534 0x0004000b, /* ???? */
538 if( mms_CommandRead( p_access, 0x01, 0 ) < 0 )
540 var_buffer_free( &buffer );
541 MMSClose( p_access );
545 i_server_version = GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 32 );
546 i_tool_version = GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 36 );
547 i_update_player_url = GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 40 );
548 i_encryption_type = GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 44 );
549 p = (uint16_t*)( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 48 );
550 #define GETUTF16( psz, size ) \
553 psz = malloc( size + 1); \
554 for( i = 0; i < size; i++ ) \
561 GETUTF16( p_sys->psz_server_version, i_server_version );
562 GETUTF16( p_sys->psz_tool_version, i_tool_version );
563 GETUTF16( p_sys->psz_update_player_url, i_update_player_url );
564 GETUTF16( p_sys->psz_encryption_type, i_encryption_type );
567 "0x01 --> server_version:\"%s\" tool_version:\"%s\" update_player_url:\"%s\" encryption_type:\"%s\"",
568 p_sys->psz_server_version,
569 p_sys->psz_tool_version,
570 p_sys->psz_update_player_url,
571 p_sys->psz_encryption_type );
573 /* *** should make an 18 command to make data timing *** */
575 /* *** send command 2 : transport protocol selection *** */
576 var_buffer_reinitwrite( &buffer, 0 );
577 var_buffer_add32( &buffer, 0x00000000 );
578 var_buffer_add32( &buffer, 0x000a0000 );
579 var_buffer_add32( &buffer, 0x00000002 );
589 sprintf( tmp, "\\\\192.168.0.1\\TCP\\1242" );
591 var_buffer_addUTF16( &buffer, tmp );
592 var_buffer_add16( &buffer, '0' );
594 mms_CommandSend( p_access,
595 0x02, /* connexion request */
596 0x00000000, /* flags, FIXME */
597 0xffffffff, /* ???? */
601 /* *** response from server, should be 0x02 or 0x03 *** */
602 mms_CommandRead( p_access, 0x02, 0x03 );
603 if( p_sys->i_command == 0x03 )
606 "%s protocol selection failed", b_udp ? "UDP" : "TCP" );
607 var_buffer_free( &buffer );
608 MMSClose( p_access );
611 else if( p_sys->i_command != 0x02 )
613 msg_Warn( p_access, "received command isn't 0x02 in reponse to 0x02" );
616 /* *** send command 5 : media file name/path requested *** */
617 var_buffer_reinitwrite( &buffer, 0 );
618 var_buffer_add64( &buffer, 0 );
619 var_buffer_addUTF16( &buffer, p_url->psz_path );
621 mms_CommandSend( p_access,
623 p_sys->i_command_level,
628 /* *** wait for reponse *** */
629 mms_CommandRead( p_access, 0x1a, 0x06 );
631 /* test if server send 0x1A answer */
632 if( p_sys->i_command == 0x1A )
634 msg_Err( p_access, "id/password requested (not yet supported)" );
636 var_buffer_free( &buffer );
637 MMSClose( p_access );
640 if( p_sys->i_command != 0x06 )
643 "unknown answer (0x%x instead of 0x06)",
645 var_buffer_free( &buffer );
646 MMSClose( p_access );
650 /* 1 for file ok, 2 for authen ok */
651 switch( GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE ) )
654 msg_Dbg( p_access, "media file name/path accepted" );
657 msg_Dbg( p_access, "authentication accepted" );
661 msg_Err( p_access, "error while asking for file %d",
662 GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE ) );
663 var_buffer_free( &buffer );
664 MMSClose( p_access );
668 p_sys->i_flags_broadcast =
669 GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 12 );
670 p_sys->i_media_length =
671 GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 24 );
672 p_sys->i_packet_length =
673 GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 44 );
674 p_sys->i_packet_count =
675 GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 48 );
676 p_sys->i_max_bit_rate =
677 GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 56 );
678 p_sys->i_header_size =
679 GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 60 );
682 "answer 0x06 flags:0x%8.8x media_length:%us packet_length:%ul packet_count:%u max_bit_rate:%d header_size:%d",
683 p_sys->i_flags_broadcast,
684 p_sys->i_media_length,
685 p_sys->i_packet_length,
686 p_sys->i_packet_count,
687 p_sys->i_max_bit_rate,
688 p_sys->i_header_size );
690 /* *** send command 15 *** */
692 var_buffer_reinitwrite( &buffer, 0 );
693 var_buffer_add32( &buffer, 0 );
694 var_buffer_add32( &buffer, 0x8000 );
695 var_buffer_add32( &buffer, 0xffffffff );
696 var_buffer_add32( &buffer, 0x00 );
697 var_buffer_add32( &buffer, 0x00 );
698 var_buffer_add32( &buffer, 0x00 );
699 var_buffer_add64( &buffer, (((uint64_t)0x40ac2000)<<32) );
700 var_buffer_add32( &buffer, p_sys->i_header_packet_id_type );
701 var_buffer_add32( &buffer, 0x00 );
702 mms_CommandSend( p_access, 0x15, p_sys->i_command_level, 0x00,
703 buffer.p_data, buffer.i_data );
705 /* *** wait for reponse *** */
706 /* Commented out because it fails on some stream (no 0x11 answer) */
708 mms_CommandRead( p_access, 0x11, 0 );
710 if( p_sys->i_command != 0x11 )
713 "unknown answer (0x%x instead of 0x11)",
715 var_buffer_free( &buffer );
716 MMSClose( p_access );
721 /* *** now read header packet *** */
722 /* XXX could be split over multiples packets */
723 msg_Dbg( p_access, "reading header" );
726 if( mms_HeaderMediaRead( p_access, MMS_PACKET_HEADER ) < 0 )
728 msg_Err( p_access, "cannot receive header" );
729 var_buffer_free( &buffer );
730 MMSClose( p_access );
733 if( p_sys->i_header >= p_sys->i_header_size )
736 "header complete(%d)",
741 "header incomplete (%d/%d), reading more",
743 p_sys->i_header_size );
746 /* *** parse header and get stream and their id *** */
747 /* get all streams properties,
749 * TODO : stream bitrates properties(optional)
750 * and bitrate mutual exclusion(optional) */
751 E_( asf_HeaderParse )( &p_sys->asfh,
752 p_sys->p_header, p_sys->i_header );
753 E_( asf_StreamSelect)( &p_sys->asfh,
754 var_CreateGetInteger( p_access, "mms-maxbitrate" ),
755 var_CreateGetInteger( p_access, "mms-all" ),
756 var_CreateGetInteger( p_access, "audio" ),
757 var_CreateGetInteger( p_access, "video" ) );
759 /* *** now select stream we want to receive *** */
760 /* TODO take care of stream bitrate TODO */
763 var_buffer_reinitwrite( &buffer, 0 );
764 /* for now, select first audio and video stream */
765 for( i = 1; i < 128; i++ )
768 if( p_sys->asfh.stream[i].i_cat != ASF_STREAM_UNKNOWN )
773 var_buffer_add16( &buffer, 0xffff );
774 var_buffer_add16( &buffer, i );
780 if( p_sys->asfh.stream[i].i_selected )
782 var_buffer_add16( &buffer, 0x0000 );
784 "selecting stream[0x%x] %s (%d kb/s)",
786 ( p_sys->asfh.stream[i].i_cat == ASF_STREAM_AUDIO ) ?
788 p_sys->asfh.stream[i].i_bitrate / 1024);
792 var_buffer_add16( &buffer, 0x0002 );
794 "ignoring stream[0x%x] %s (%d kb/s)",
796 ( p_sys->asfh.stream[i].i_cat == ASF_STREAM_AUDIO ) ?
798 p_sys->asfh.stream[i].i_bitrate / 1024);
806 msg_Err( p_access, "cannot find any stream" );
807 var_buffer_free( &buffer );
808 MMSClose( p_access );
811 mms_CommandSend( p_access, 0x33,
813 0xffff | ( i_first << 16 ),
814 buffer.p_data, buffer.i_data );
816 mms_CommandRead( p_access, 0x21, 0 );
817 if( p_sys->i_command != 0x21 )
820 "unknown answer (0x%x instead of 0x21)",
822 var_buffer_free( &buffer );
823 MMSClose( p_access );
828 var_buffer_free( &buffer );
830 msg_Info( p_access, "connection successful" );
835 /****************************************************************************
836 * MMSStart : Start streaming
837 ****************************************************************************/
838 static int MMSStart( access_t *p_access, uint32_t i_packet )
840 access_sys_t *p_sys = p_access->p_sys;
843 /* *** start stream from packet 0 *** */
844 var_buffer_initwrite( &buffer, 0 );
845 var_buffer_add64( &buffer, 0 ); /* seek point in second */
846 var_buffer_add32( &buffer, 0xffffffff );
847 var_buffer_add32( &buffer, i_packet ); // begin from start
848 var_buffer_add8( &buffer, 0xff ); // stream time limit
849 var_buffer_add8( &buffer, 0xff ); // on 3bytes ...
850 var_buffer_add8( &buffer, 0xff ); //
851 var_buffer_add8( &buffer, 0x00 ); // don't use limit
852 var_buffer_add32( &buffer, p_sys->i_media_packet_id_type );
854 mms_CommandSend( p_access, 0x07, p_sys->i_command_level, 0x0001ffff,
855 buffer.p_data, buffer.i_data );
857 var_buffer_free( &buffer );
859 mms_CommandRead( p_access, 0x05, 0 );
861 if( p_sys->i_command != 0x05 )
864 "unknown answer (0x%x instead of 0x05)",
871 mms_HeaderMediaRead( p_access, MMS_PACKET_MEDIA );
872 msg_Dbg( p_access, "streaming started" );
877 /****************************************************************************
878 * MMSStop : Stop streaming
879 ****************************************************************************/
880 static int MMSStop( access_t *p_access )
882 access_sys_t *p_sys = p_access->p_sys;
884 /* *** stop stream but keep connection alive *** */
885 mms_CommandSend( p_access,
887 p_sys->i_command_level,
893 /****************************************************************************
894 * MMSClose : Close streaming and connection
895 ****************************************************************************/
896 static void MMSClose( access_t *p_access )
898 access_sys_t *p_sys = p_access->p_sys;
900 msg_Dbg( p_access, "Connection closed" );
902 /* *** tell server that we will disconnect *** */
903 mms_CommandSend( p_access,
905 p_sys->i_command_level,
909 /* *** close sockets *** */
910 net_Close( p_sys->i_handle_tcp );
911 if( p_sys->i_proto == MMS_PROTO_UDP )
913 net_Close( p_sys->i_handle_udp );
916 FREENULL( p_sys->p_cmd );
917 FREENULL( p_sys->p_media );
918 FREENULL( p_sys->p_header );
920 FREENULL( p_sys->psz_server_version );
921 FREENULL( p_sys->psz_tool_version );
922 FREENULL( p_sys->psz_update_player_url );
923 FREENULL( p_sys->psz_encryption_type );
926 /****************************************************************************
928 * MMS specific functions
930 ****************************************************************************/
931 static int mms_CommandSend( access_t *p_access, int i_command,
932 uint32_t i_prefix1, uint32_t i_prefix2,
933 uint8_t *p_data, int i_data_old )
936 access_sys_t *p_sys = p_access->p_sys;
937 int i_data_by8, i_ret;
938 int i_data = i_data_old;
940 while( i_data & 0x7 ) i_data++;
941 i_data_by8 = i_data >> 3;
943 /* first init buffer */
944 var_buffer_initwrite( &buffer, 0 );
946 var_buffer_add32( &buffer, 0x00000001 ); /* start sequence */
947 var_buffer_add32( &buffer, 0xB00BFACE );
948 /* size after protocol type */
949 var_buffer_add32( &buffer, i_data + MMS_CMD_HEADERSIZE - 16 );
950 var_buffer_add32( &buffer, 0x20534d4d ); /* protocol "MMS " */
951 var_buffer_add32( &buffer, i_data_by8 + 4 );
952 var_buffer_add32( &buffer, p_sys->i_seq_num ); p_sys->i_seq_num++;
953 var_buffer_add64( &buffer, 0 );
954 var_buffer_add32( &buffer, i_data_by8 + 2 );
955 var_buffer_add32( &buffer, 0x00030000 | i_command ); /* dir | command */
956 var_buffer_add32( &buffer, i_prefix1 ); /* command specific */
957 var_buffer_add32( &buffer, i_prefix2 ); /* command specific */
959 /* specific command data */
960 if( p_data && i_data > 0 )
962 var_buffer_addmemory( &buffer, p_data, i_data_old );
965 /* Append padding to the command data */
966 var_buffer_add64( &buffer, 0 );
969 i_ret = net_Write( p_access, p_sys->i_handle_tcp, NULL, buffer.p_data,
970 buffer.i_data - ( 8 - ( i_data - i_data_old ) ) );
971 if( i_ret != buffer.i_data - ( 8 - ( i_data - i_data_old ) ) )
973 msg_Err( p_access, "failed to send command" );
977 var_buffer_free( &buffer );
981 static int NetFillBuffer( access_t *p_access )
987 access_sys_t *p_sys = p_access->p_sys;
988 struct timeval timeout;
992 /* FIXME when using udp */
993 ssize_t i_tcp, i_udp;
994 ssize_t i_tcp_read, i_udp_read;
998 i_tcp = MMS_BUFFER_SIZE/2 - p_sys->i_buffer_tcp;
1000 if( p_sys->i_proto == MMS_PROTO_UDP )
1002 i_udp = MMS_BUFFER_SIZE/2 - p_sys->i_buffer_udp;
1006 i_udp = 0; /* there isn't udp socket */
1012 i_handle_max = __MAX( i_handle_max, p_sys->i_handle_tcp );
1014 i_handle_max = __MAX( i_handle_max, p_sys->i_handle_udp );
1016 if( i_handle_max == 0 )
1018 msg_Warn( p_access, "nothing to read %d:%d", (int)i_tcp, (int)i_udp );
1023 /* msg_Warn( p_access, "ask for tcp:%d udp:%d", i_tcp, i_udp ); */
1026 /* Find if some data is available */
1031 /* Initialize file descriptor set */
1037 FD_SET( p_sys->i_handle_tcp, &fds_r );
1038 FD_SET( p_sys->i_handle_tcp, &fds_e );
1042 FD_SET( p_sys->i_handle_udp, &fds_r );
1043 FD_SET( p_sys->i_handle_udp, &fds_e );
1046 /* We'll wait 0.5 second if nothing happens */
1048 timeout.tv_usec = 500000;
1050 if( i_try > 3 && (p_sys->i_buffer_tcp > 0 || p_sys->i_buffer_udp > 0) )
1055 if( p_access->b_die || p_access->b_error ) return -1;
1057 //msg_Dbg( p_access, "NetFillBuffer: trying again (select)" );
1059 } while( !(i_ret = select(i_handle_max +1, &fds_r, 0, &fds_e, &timeout)) ||
1060 (i_ret < 0 && errno == EINTR) );
1064 msg_Err( p_access, "network select error (%s)", strerror(errno) );
1068 i_tcp_read = i_udp_read = 0;
1070 if( i_tcp > 0 && FD_ISSET( p_sys->i_handle_tcp, &fds_r ) )
1073 recv( p_sys->i_handle_tcp,
1074 p_sys->buffer_tcp + p_sys->i_buffer_tcp,
1075 i_tcp + MMS_BUFFER_SIZE/2, 0 );
1078 if( i_udp > 0 && FD_ISSET( p_sys->i_handle_udp, &fds_r ) )
1080 i_udp_read = recv( p_sys->i_handle_udp,
1081 p_sys->buffer_udp + p_sys->i_buffer_udp,
1082 i_udp + MMS_BUFFER_SIZE/2, 0 );
1086 if( p_sys->i_proto == MMS_PROTO_UDP )
1088 msg_Dbg( p_access, "filling buffer TCP:%d+%d UDP:%d+%d",
1089 p_sys->i_buffer_tcp, i_tcp_read,
1090 p_sys->i_buffer_udp, i_udp_read );
1094 msg_Dbg( p_access, "filling buffer TCP:%d+%d",
1095 p_sys->i_buffer_tcp, i_tcp_read );
1099 if( i_tcp_read > 0 ) p_sys->i_buffer_tcp += i_tcp_read;
1100 if( i_udp_read > 0 ) p_sys->i_buffer_udp += i_udp_read;
1102 return i_tcp_read + i_udp_read;
1106 static int mms_ParseCommand( access_t *p_access,
1111 #define GET32( i_pos ) \
1112 ( p_sys->p_cmd[i_pos] + ( p_sys->p_cmd[i_pos +1] << 8 ) + \
1113 ( p_sys->p_cmd[i_pos + 2] << 16 ) + \
1114 ( p_sys->p_cmd[i_pos + 3] << 24 ) )
1116 access_sys_t *p_sys = p_access->p_sys;
1122 free( p_sys->p_cmd );
1124 p_sys->i_cmd = i_data;
1125 p_sys->p_cmd = malloc( i_data );
1126 memcpy( p_sys->p_cmd, p_data, i_data );
1128 *pi_used = i_data; /* by default */
1130 if( i_data < MMS_CMD_HEADERSIZE )
1132 msg_Warn( p_access, "truncated command (header incomplete)" );
1133 p_sys->i_command = 0;
1136 i_id = GetDWLE( p_data + 4 );
1137 i_length = GetDWLE( p_data + 8 ) + 16;
1139 if( i_id != 0xb00bface )
1142 "incorrect command header (0x%x)", i_id );
1143 p_sys->i_command = 0;
1147 if( i_length > p_sys->i_cmd )
1150 "truncated command (missing %d bytes)",
1151 i_length - i_data );
1152 p_sys->i_command = 0;
1155 else if( i_length < p_sys->i_cmd )
1157 p_sys->i_cmd = i_length;
1158 *pi_used = i_length;
1162 "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",
1166 /* 12: protocol type "MMS " */
1169 /* 24: unknown (0) */
1170 /* 28: unknown (0) */
1176 p_sys->i_command = GET32( 36 ) & 0xffff;
1179 return MMS_PACKET_CMD;
1182 static int mms_ParsePacket( access_t *p_access,
1183 uint8_t *p_data, size_t i_data,
1186 access_sys_t *p_sys = p_access->p_sys;
1187 int i_packet_seq_num;
1188 size_t i_packet_length;
1189 uint32_t i_packet_id;
1194 *pi_used = i_data; /* default */
1197 msg_Warn( p_access, "truncated packet (header incomplete)" );
1201 i_packet_id = p_data[4];
1202 i_packet_seq_num = GetDWLE( p_data );
1203 i_packet_length = GetWLE( p_data + 6 );
1205 //msg_Warn( p_access, "------->i_packet_length=%d, i_data=%d", i_packet_length, i_data );
1207 if( i_packet_length > i_data || i_packet_length <= 8)
1209 /* msg_Dbg( p_access,
1210 "truncated packet (Declared %d bytes, Actual %d bytes)",
1211 i_packet_length, i_data ); */
1215 else if( i_packet_length < i_data )
1217 *pi_used = i_packet_length;
1220 if( i_packet_id == 0xff )
1223 "receive MMS UDP pair timing" );
1224 return( MMS_PACKET_UDP_TIMING );
1227 if( i_packet_id != p_sys->i_header_packet_id_type &&
1228 i_packet_id != p_sys->i_media_packet_id_type )
1230 msg_Warn( p_access, "incorrect Packet Id Type (0x%x)", i_packet_id );
1234 /* we now have a media or a header packet */
1235 p_packet = malloc( i_packet_length - 8 ); // don't bother with preheader
1236 memcpy( p_packet, p_data + 8, i_packet_length - 8 );
1238 if( i_packet_seq_num != p_sys->i_packet_seq_num )
1240 /* FIXME for udp could be just wrong order ? */
1242 "detected packet lost (%d != %d)",
1244 p_sys->i_packet_seq_num );
1245 p_sys->i_packet_seq_num = i_packet_seq_num;
1247 p_sys->i_packet_seq_num++;
1249 if( i_packet_id == p_sys->i_header_packet_id_type )
1251 if( p_sys->p_header )
1253 p_sys->p_header = realloc( p_sys->p_header,
1254 p_sys->i_header + i_packet_length - 8 );
1255 memcpy( &p_sys->p_header[p_sys->i_header],
1257 i_packet_length - 8 );
1258 p_sys->i_header += i_packet_length - 8;
1264 p_sys->p_header = p_packet;
1265 p_sys->i_header = i_packet_length - 8;
1267 /* msg_Dbg( p_access,
1268 "receive header packet (%d bytes)",
1269 i_packet_length - 8 ); */
1271 return MMS_PACKET_HEADER;
1275 FREENULL( p_sys->p_media );
1276 p_sys->p_media = p_packet;
1277 p_sys->i_media = i_packet_length - 8;
1278 p_sys->i_media_used = 0;
1279 /* msg_Dbg( p_access,
1280 "receive media packet (%d bytes)",
1281 i_packet_length - 8 ); */
1283 return MMS_PACKET_MEDIA;
1287 static int mms_ReceivePacket( access_t *p_access )
1289 access_sys_t *p_sys = p_access->p_sys;
1290 int i_packet_tcp_type;
1291 int i_packet_udp_type;
1295 vlc_bool_t b_refill = VLC_TRUE;
1297 /* first if we need to refill buffer */
1298 if( p_sys->i_buffer_tcp >= MMS_CMD_HEADERSIZE )
1300 if( GetDWLE( p_sys->buffer_tcp + 4 ) == 0xb00bface )
1302 if( GetDWLE( p_sys->buffer_tcp + 8 ) + 16 <=
1303 (uint32_t)p_sys->i_buffer_tcp )
1305 b_refill = VLC_FALSE;
1308 else if( GetWLE( p_sys->buffer_tcp + 6 ) <= p_sys->i_buffer_tcp )
1310 b_refill = VLC_FALSE;
1313 if( p_sys->i_proto == MMS_PROTO_UDP && p_sys->i_buffer_udp >= 8 &&
1314 GetWLE( p_sys->buffer_udp + 6 ) <= p_sys->i_buffer_udp )
1316 b_refill = VLC_FALSE;
1319 if( b_refill && NetFillBuffer( p_access ) < 0 )
1321 msg_Warn( p_access, "cannot fill buffer" );
1325 i_packet_tcp_type = -1;
1326 i_packet_udp_type = -1;
1328 if( p_sys->i_buffer_tcp > 0 )
1332 if( GetDWLE( p_sys->buffer_tcp + 4 ) == 0xb00bface )
1335 mms_ParseCommand( p_access, p_sys->buffer_tcp,
1336 p_sys->i_buffer_tcp, &i_used );
1342 mms_ParsePacket( p_access, p_sys->buffer_tcp,
1343 p_sys->i_buffer_tcp, &i_used );
1345 if( i_used > 0 && i_used < MMS_BUFFER_SIZE )
1347 memmove( p_sys->buffer_tcp, p_sys->buffer_tcp + i_used,
1348 MMS_BUFFER_SIZE - i_used );
1350 p_sys->i_buffer_tcp -= i_used;
1352 else if( p_sys->i_buffer_udp > 0 )
1357 mms_ParsePacket( p_access, p_sys->buffer_udp,
1358 p_sys->i_buffer_udp, &i_used );
1360 if( i_used > 0 && i_used < MMS_BUFFER_SIZE )
1362 memmove( p_sys->buffer_udp, p_sys->buffer_udp + i_used,
1363 MMS_BUFFER_SIZE - i_used );
1365 p_sys->i_buffer_udp -= i_used;
1368 if( i_packet_tcp_type == MMS_PACKET_CMD && p_sys->i_command == 0x1b )
1370 mms_CommandSend( p_access, 0x1b, 0, 0, NULL, 0 );
1371 i_packet_tcp_type = -1;
1374 if( i_packet_tcp_type != -1 )
1376 return i_packet_tcp_type;
1378 else if( i_packet_udp_type != -1 )
1380 return i_packet_udp_type;
1385 static int mms_ReceiveCommand( access_t *p_access )
1387 access_sys_t *p_sys = p_access->p_sys;
1394 if( NetFillBuffer( p_access ) < 0 )
1396 msg_Warn( p_access, "cannot fill buffer" );
1397 return VLC_EGENERIC;
1399 if( p_sys->i_buffer_tcp > 0 )
1401 i_status = mms_ParseCommand( p_access, p_sys->buffer_tcp,
1402 p_sys->i_buffer_tcp, &i_used );
1403 if( i_used < MMS_BUFFER_SIZE )
1405 memmove( p_sys->buffer_tcp, p_sys->buffer_tcp + i_used,
1406 MMS_BUFFER_SIZE - i_used );
1408 p_sys->i_buffer_tcp -= i_used;
1412 return VLC_EGENERIC;
1415 if( p_sys->i_command == 0x1b )
1417 mms_CommandSend( p_access, 0x1b, 0, 0, NULL, 0 );
1426 return VLC_EGENERIC;
1433 #define MMS_RETRY_MAX 10
1434 #define MMS_RETRY_SLEEP 50000
1436 static int mms_CommandRead( access_t *p_access, int i_command1,
1439 access_sys_t *p_sys = p_access->p_sys;
1443 for( i_count = 0; i_count < MMS_RETRY_MAX; )
1445 i_status = mms_ReceiveCommand( p_access );
1446 if( i_status < 0 || p_sys->i_command == 0 )
1449 msleep( MMS_RETRY_SLEEP );
1451 else if( i_command1 == 0 && i_command2 == 0)
1455 else if( p_sys->i_command == i_command1 ||
1456 p_sys->i_command == i_command2 )
1462 switch( p_sys->i_command )
1465 msg_Warn( p_access, "socket closed by server" );
1466 p_access->info.b_eof = 1;
1467 return VLC_EGENERIC;
1469 msg_Warn( p_access, "end of media stream" );
1470 p_access->info.b_eof = 1;
1471 return VLC_EGENERIC;
1477 msg_Warn( p_access, "failed to receive command (aborting)" );
1479 return VLC_EGENERIC;
1483 static int mms_HeaderMediaRead( access_t *p_access, int i_type )
1485 access_sys_t *p_sys = p_access->p_sys;
1488 for( i_count = 0; i_count < MMS_RETRY_MAX; )
1492 if( p_access->b_die )
1495 i_status = mms_ReceivePacket( p_access );
1499 msg_Warn( p_access, "cannot receive header (%d/%d)",
1500 i_count, MMS_RETRY_MAX );
1501 msleep( MMS_RETRY_SLEEP );
1503 else if( i_status == i_type || i_type == MMS_PACKET_ANY )
1507 else if( i_status == MMS_PACKET_CMD )
1509 switch( p_sys->i_command )
1512 msg_Warn( p_access, "socket closed by server" );
1513 p_access->info.b_eof = 1;
1516 msg_Warn( p_access, "end of media stream" );
1517 p_access->info.b_eof = 1;
1520 /* XXX not too dificult to be done EXCEPT that we
1521 * need to restart demuxer... and I don't see how we
1522 * could do that :p */
1524 "reinitialization needed --> unsupported" );
1525 p_access->info.b_eof = VLC_TRUE;
1533 msg_Err( p_access, "cannot receive %s (aborting)",
1534 ( i_type == MMS_PACKET_HEADER ) ? "header" : "media data" );