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 *****************************************************************************/
32 #include <vlc_common.h>
33 #include <vlc_access.h>
34 #include <vlc_memory.h>
45 #ifdef HAVE_SYS_TIME_H
46 # include <sys/time.h>
48 #ifdef HAVE_SYS_TYPES_H
49 # include <sys/types.h>
51 #ifdef HAVE_SYS_STAT_H
52 # include <sys/stat.h>
58 #include <vlc_network.h>
68 /****************************************************************************
70 * MMSProtocole documentation found at http://get.to/sdp
71 ****************************************************************************/
73 /*****************************************************************************
75 *****************************************************************************/
76 int MMSTUOpen ( access_t * );
77 void MMSTUClose ( access_t * );
80 static block_t *Block( access_t * );
81 static int Seek( access_t *, int64_t );
82 static int Control( access_t *, int, va_list );
84 static int MMSOpen ( access_t *, vlc_url_t *, int );
85 static int MMSStart( access_t *, uint32_t );
86 static int MMSStop ( access_t * );
87 static void MMSClose( access_t * );
90 static int mms_CommandRead( access_t *p_access, int i_command1, int i_command2 );
91 static int mms_CommandSend( access_t *, int, uint32_t, uint32_t, uint8_t *, int );
93 static int mms_HeaderMediaRead( access_t *, int );
95 static int mms_ReceivePacket( access_t * );
97 static void* KeepAliveThread( void * );
99 int MMSTUOpen( access_t *p_access )
105 /* Set up p_access */
106 access_InitFields( p_access );
107 p_access->pf_read = NULL;
108 p_access->pf_block = Block;
109 p_access->pf_control = Control;
110 p_access->pf_seek = Seek;
112 p_access->p_sys = p_sys = calloc( 1, sizeof( access_sys_t ) );
113 if( !p_sys ) return VLC_ENOMEM;
115 p_sys->i_timeout = var_CreateGetInteger( p_access, "mms-timeout" );
117 vlc_mutex_init( &p_sys->lock_netwrite );
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 );
125 vlc_mutex_destroy( &p_sys->lock_netwrite );
129 if( p_sys->url.i_port <= 0 )
131 p_sys->url.i_port = 1755;
134 /* *** connect to this server *** */
135 /* look at requested protocol (udp/tcp) */
136 i_proto = MMS_PROTO_AUTO;
137 if( *p_access->psz_access )
139 if( !strncmp( p_access->psz_access, "mmsu", 4 ) )
141 i_proto = MMS_PROTO_UDP;
143 else if( !strncmp( p_access->psz_access, "mmst", 4 ) )
145 i_proto = MMS_PROTO_TCP;
150 if( i_proto == MMS_PROTO_AUTO )
151 { /* first try with TCP and then UDP*/
152 if( ( i_status = MMSOpen( p_access, &p_sys->url, MMS_PROTO_TCP ) ) )
154 if( !p_access->b_die )
155 i_status = MMSOpen( p_access, &p_sys->url, MMS_PROTO_UDP );
160 i_status = MMSOpen( p_access, &p_sys->url, i_proto );
165 msg_Err( p_access, "cannot connect to server" );
166 vlc_UrlClean( &p_sys->url );
167 vlc_mutex_destroy( &p_sys->lock_netwrite );
172 msg_Dbg( p_access, "connected to %s:%d", p_sys->url.psz_host, p_sys->url.i_port );
176 * broadcast yy=0x02, xx= 0x00
177 * pre-recorded yy=0x01, xx= 0x80 if video, 0x00 no video
179 if( p_sys->i_packet_count <= 0 && p_sys->asfh.i_data_packets_count > 0 )
181 p_sys->i_packet_count = p_sys->asfh.i_data_packets_count;
183 if( p_sys->i_packet_count <= 0 || ( p_sys->i_flags_broadcast >> 24 ) == 0x02 )
185 p_sys->b_seekable = false;
189 p_sys->b_seekable = true;
190 p_access->info.i_size =
191 (uint64_t)p_sys->i_header +
192 (uint64_t)p_sys->i_packet_count * (uint64_t)p_sys->i_packet_length;
195 /* *** Start stream *** */
196 if( MMSStart( p_access, 0xffffffff ) < 0 )
198 msg_Err( p_access, "cannot start stream" );
199 MMSTUClose ( p_access );
203 /* Keep the connection alive when paused */
204 p_sys->p_keepalive = malloc( sizeof( mmstu_keepalive_t ) );
205 if( !p_sys->p_keepalive )
207 MMSTUClose ( p_access );
210 p_sys->p_keepalive->p_access = p_access;
211 vlc_mutex_init( &p_sys->p_keepalive->lock );
212 vlc_cond_init( &p_sys->p_keepalive->wait );
213 p_sys->p_keepalive->b_paused = false;
214 if( vlc_clone( &p_sys->p_keepalive->handle, KeepAliveThread,
215 p_sys->p_keepalive, VLC_THREAD_PRIORITY_LOW ) )
217 vlc_cond_destroy( &p_sys->p_keepalive->wait );
218 vlc_mutex_destroy( &p_sys->p_keepalive->lock );
219 free( p_sys->p_keepalive );
220 p_sys->p_keepalive = NULL;
226 /*****************************************************************************
227 * Close: free unused data structures
228 *****************************************************************************/
229 void MMSTUClose( access_t *p_access )
231 access_sys_t *p_sys = p_access->p_sys;
233 if( p_sys->p_keepalive )
235 vlc_cancel( p_sys->p_keepalive->handle );
236 vlc_join( p_sys->p_keepalive->handle, NULL );
237 vlc_cond_destroy( &p_sys->p_keepalive->wait );
238 vlc_mutex_destroy( &p_sys->p_keepalive->lock );
239 free( p_sys->p_keepalive );
242 /* close connection with server */
243 MMSClose( p_access );
246 vlc_UrlClean( &p_sys->url );
247 vlc_mutex_destroy( &p_sys->lock_netwrite );
252 /*****************************************************************************
254 *****************************************************************************/
255 static int Control( access_t *p_access, int i_query, va_list args )
257 access_sys_t *p_sys = p_access->p_sys;
266 case ACCESS_CAN_SEEK:
267 pb_bool = (bool*)va_arg( args, bool* );
268 *pb_bool = p_sys->b_seekable;
271 case ACCESS_CAN_FASTSEEK:
272 pb_bool = (bool*)va_arg( args, bool* );
276 case ACCESS_CAN_PAUSE:
277 pb_bool = (bool*)va_arg( args, bool* );
281 case ACCESS_CAN_CONTROL_PACE:
282 pb_bool = (bool*)va_arg( args, bool* );
284 #if 0 /* Disable for now until we have a clock synchro algo
285 * which works with something else than MPEG over UDP */
292 case ACCESS_GET_PTS_DELAY:
293 pi_64 = (int64_t*)va_arg( args, int64_t * );
294 *pi_64 = (int64_t)var_GetInteger( p_access, "mms-caching" ) * INT64_C(1000);
297 case ACCESS_GET_PRIVATE_ID_STATE:
298 i_int = (int)va_arg( args, int );
299 pb_bool = (bool *)va_arg( args, bool * );
301 if( i_int < 0 || i_int > 127 )
303 *pb_bool = p_sys->asfh.stream[i_int].i_selected ? true : false;
307 case ACCESS_SET_PAUSE_STATE:
308 b_bool = (bool)va_arg( args, int );
312 Seek( p_access, p_access->info.i_pos );
314 if( p_sys->p_keepalive )
316 vlc_mutex_lock( &p_sys->p_keepalive->lock );
317 p_sys->p_keepalive->b_paused = b_bool;
319 vlc_cond_signal( &p_sys->p_keepalive->wait );
320 vlc_mutex_unlock( &p_sys->p_keepalive->lock );
324 case ACCESS_GET_TITLE_INFO:
325 case ACCESS_SET_TITLE:
326 case ACCESS_SET_SEEKPOINT:
327 case ACCESS_SET_PRIVATE_ID_STATE:
328 case ACCESS_GET_CONTENT_TYPE:
333 msg_Warn( p_access, "unimplemented query in control" );
340 /*****************************************************************************
341 * Seek: try to go at the right place
342 *****************************************************************************/
343 static int Seek( access_t * p_access, int64_t i_pos )
345 access_sys_t *p_sys = p_access->p_sys;
353 if( i_pos < p_sys->i_header)
356 if( p_access->info.i_pos < p_sys->i_header )
358 /* no need to restart stream, it was already one
359 * or no stream was yet read */
360 p_access->info.i_pos = i_pos;
365 i_packet = 0xffffffff;
371 i_packet = ( i_pos - p_sys->i_header ) / p_sys->i_packet_length;
372 i_offset = ( i_pos - p_sys->i_header ) % p_sys->i_packet_length;
374 if( p_sys->b_seekable && i_packet >= p_sys->i_packet_count )
377 msg_Dbg( p_access, "seeking to %"PRId64 " (packet:%d)", i_pos, i_packet );
380 msg_Dbg( p_access, "stream stopped (seek)" );
382 /* *** restart stream *** */
383 var_buffer_initwrite( &buffer, 0 );
384 var_buffer_add64( &buffer, 0 ); /* seek point in second */
385 var_buffer_add32( &buffer, 0xffffffff );
386 var_buffer_add32( &buffer, i_packet ); // begin from start
387 var_buffer_add8( &buffer, 0xff ); // stream time limit
388 var_buffer_add8( &buffer, 0xff ); // on 3bytes ...
389 var_buffer_add8( &buffer, 0xff ); //
390 var_buffer_add8( &buffer, 0x00 ); // don't use limit
391 var_buffer_add32( &buffer, p_sys->i_media_packet_id_type );
393 mms_CommandSend( p_access, 0x07, p_sys->i_command_level, 0x0001ffff,
394 buffer.p_data, buffer.i_data );
396 var_buffer_free( &buffer );
399 while( vlc_object_alive (p_access) )
401 if( mms_HeaderMediaRead( p_access, MMS_PACKET_CMD ) < 0 )
403 p_access->info.b_eof = true;
407 if( p_sys->i_command == 0x1e )
409 msg_Dbg( p_access, "received 0x1e (seek)" );
414 while( vlc_object_alive (p_access) )
416 if( mms_HeaderMediaRead( p_access, MMS_PACKET_CMD ) < 0 )
418 p_access->info.b_eof = true;
421 if( p_sys->i_command == 0x05 )
423 msg_Dbg( p_access, "received 0x05 (seek)" );
429 if( mms_HeaderMediaRead( p_access, MMS_PACKET_MEDIA ) < 0 )
431 p_access->info.b_eof = true;
435 msg_Dbg( p_access, "Streaming restarted" );
437 p_sys->i_media_used += i_offset;
438 p_access->info.i_pos = i_pos;
439 p_access->info.b_eof = false;
444 /*****************************************************************************
446 *****************************************************************************/
447 static block_t *Block( access_t *p_access )
449 access_sys_t *p_sys = p_access->p_sys;
451 if( p_access->info.b_eof )
454 if( p_access->info.i_pos < p_sys->i_header )
456 const size_t i_copy = p_sys->i_header - p_access->info.i_pos;
458 block_t *p_block = block_New( p_access, i_copy );
462 memcpy( p_block->p_buffer, &p_sys->p_header[p_access->info.i_pos], i_copy );
463 p_access->info.i_pos += i_copy;
466 else if( p_sys->p_media && p_sys->i_media_used < __MAX( p_sys->i_media, p_sys->i_packet_length ) )
469 size_t i_padding = 0;
471 if( p_sys->i_media_used < p_sys->i_media )
472 i_copy = p_sys->i_media - p_sys->i_media_used;
473 if( __MAX( p_sys->i_media, p_sys->i_media_used ) < p_sys->i_packet_length )
474 i_padding = p_sys->i_packet_length - __MAX( p_sys->i_media, p_sys->i_media_used );
476 block_t *p_block = block_New( p_access, i_copy + i_padding );
481 memcpy( &p_block->p_buffer[0], &p_sys->p_media[p_sys->i_media_used], i_copy );
483 memset( &p_block->p_buffer[i_copy], 0, i_padding );
485 p_sys->i_media_used += i_copy + i_padding;
486 p_access->info.i_pos += i_copy + i_padding;
490 mms_HeaderMediaRead( p_access, MMS_PACKET_MEDIA );
494 /****************************************************************************
495 * MMSOpen : Open a connection with the server over mmst or mmsu
496 ****************************************************************************/
497 static int MMSOpen( access_t *p_access, vlc_url_t *p_url, int i_proto )
499 access_sys_t *p_sys = p_access->p_sys;
500 int b_udp = ( i_proto == MMS_PROTO_UDP ) ? 1 : 0;
505 int i_server_version;
507 int i_update_player_url;
508 int i_encryption_type;
515 /* *** Open a TCP connection with server *** */
516 msg_Dbg( p_access, "waiting for connection..." );
517 p_sys->i_handle_tcp = net_ConnectTCP( p_access, p_url->psz_host, p_url->i_port );
518 if( p_sys->i_handle_tcp < 0 )
520 msg_Err( p_access, "failed to open a connection (tcp)" );
524 "connection(tcp) with \"%s:%d\" successful",
528 /* *** Bind port if UDP protocol is selected *** */
531 if( net_GetSockAddress( p_sys->i_handle_tcp, p_sys->sz_bind_addr,
534 net_Close( p_sys->i_handle_tcp );
538 p_sys->i_handle_udp = net_ListenUDP1( (vlc_object_t *)p_access, p_sys->sz_bind_addr,
540 if( p_sys->i_handle_udp < 0 )
542 msg_Err( p_access, "failed to open a connection (udp)" );
543 net_Close( p_sys->i_handle_tcp );
547 "connection(udp) at \"%s:%d\" successful",
548 p_sys->sz_bind_addr, 7000 );
551 /* *** Init context for mms prototcol *** */
552 GenerateGuid ( &p_sys->guid ); /* used to identify client by server */
554 "generated guid: "GUID_FMT,
555 GUID_PRINT( p_sys->guid ) );
556 p_sys->i_command_level = 1; /* updated after 0x1A command */
557 p_sys->i_seq_num = 0;
558 p_sys->i_media_packet_id_type = 0x04;
559 p_sys->i_header_packet_id_type = 0x02;
560 p_sys->i_proto = i_proto;
561 p_sys->i_packet_seq_num = 0;
562 p_sys->p_header = NULL;
564 p_sys->p_media = NULL;
566 p_sys->i_media_used = 0;
568 p_access->info.i_pos = 0;
569 p_sys->i_buffer_tcp = 0;
570 p_sys->i_buffer_udp = 0;
573 p_access->info.b_eof = false;
575 /* *** send command 1 : connection request *** */
576 var_buffer_initwrite( &buffer, 0 );
577 var_buffer_add16( &buffer, 0x001c );
578 var_buffer_add16( &buffer, 0x0003 );
580 "NSPlayer/7.0.0.1956; {"GUID_FMT"}; Host: %s",
581 GUID_PRINT( p_sys->guid ),
583 var_buffer_addUTF16( &buffer, tmp );
585 mms_CommandSend( p_access,
586 0x01, /* connexion request */
587 0x00000000, /* flags, FIXME */
588 0x0004000b, /* ???? */
592 if( mms_CommandRead( p_access, 0x01, 0 ) < 0 )
594 var_buffer_free( &buffer );
595 MMSClose( p_access );
599 i_server_version = GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 32 );
600 i_tool_version = GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 36 );
601 i_update_player_url = GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 40 );
602 i_encryption_type = GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 44 );
603 p = (uint16_t*)( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 48 );
604 #define GETUTF16( psz, size ) \
607 psz = malloc( size + 1); \
609 for( i = 0; i < size; i++ ) \
616 GETUTF16( p_sys->psz_server_version, i_server_version );
617 GETUTF16( p_sys->psz_tool_version, i_tool_version );
618 GETUTF16( p_sys->psz_update_player_url, i_update_player_url );
619 GETUTF16( p_sys->psz_encryption_type, i_encryption_type );
622 "0x01 --> server_version:\"%s\" tool_version:\"%s\" update_player_url:\"%s\" encryption_type:\"%s\"",
623 p_sys->psz_server_version,
624 p_sys->psz_tool_version,
625 p_sys->psz_update_player_url,
626 p_sys->psz_encryption_type );
628 /* *** should make an 18 command to make data timing *** */
630 /* *** send command 2 : transport protocol selection *** */
631 var_buffer_reinitwrite( &buffer, 0 );
632 var_buffer_add32( &buffer, 0x00000000 );
633 var_buffer_add32( &buffer, 0x000a0000 );
634 var_buffer_add32( &buffer, 0x00000002 );
644 sprintf( tmp, "\\\\192.168.0.1\\TCP\\1242" );
646 var_buffer_addUTF16( &buffer, tmp );
647 var_buffer_add16( &buffer, '0' );
649 mms_CommandSend( p_access,
650 0x02, /* connexion request */
651 0x00000000, /* flags, FIXME */
652 0xffffffff, /* ???? */
656 /* *** response from server, should be 0x02 or 0x03 *** */
657 mms_CommandRead( p_access, 0x02, 0x03 );
658 if( p_sys->i_command == 0x03 )
661 "%s protocol selection failed", b_udp ? "UDP" : "TCP" );
662 var_buffer_free( &buffer );
663 MMSClose( p_access );
666 else if( p_sys->i_command != 0x02 )
668 msg_Warn( p_access, "received command isn't 0x02 in reponse to 0x02" );
671 /* *** send command 5 : media file name/path requested *** */
672 var_buffer_reinitwrite( &buffer, 0 );
673 var_buffer_add64( &buffer, 0 );
675 /* media file path shouldn't start with / character */
676 mediapath = p_url->psz_path;
677 if ( *mediapath == '/' )
681 var_buffer_addUTF16( &buffer, mediapath );
683 mms_CommandSend( p_access,
685 p_sys->i_command_level,
690 /* *** wait for reponse *** */
691 mms_CommandRead( p_access, 0x1a, 0x06 );
693 /* test if server send 0x1A answer */
694 if( p_sys->i_command == 0x1A )
696 msg_Err( p_access, "id/password requested (not yet supported)" );
698 var_buffer_free( &buffer );
699 MMSClose( p_access );
702 if( p_sys->i_command != 0x06 )
705 "unknown answer (0x%x instead of 0x06)",
707 var_buffer_free( &buffer );
708 MMSClose( p_access );
712 /* 1 for file ok, 2 for authen ok */
713 switch( GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE ) )
716 msg_Dbg( p_access, "media file name/path accepted" );
719 msg_Dbg( p_access, "authentication accepted" );
723 msg_Err( p_access, "error while asking for file %d",
724 GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE ) );
725 var_buffer_free( &buffer );
726 MMSClose( p_access );
730 p_sys->i_flags_broadcast =
731 GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 12 );
732 p_sys->i_media_length =
733 GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 24 );
734 p_sys->i_packet_length =
735 GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 44 );
736 p_sys->i_packet_count =
737 GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 48 );
738 p_sys->i_max_bit_rate =
739 GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 56 );
740 p_sys->i_header_size =
741 GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 60 );
744 "answer 0x06 flags:0x%8.8"PRIx32" media_length:%"PRIu32"s "
745 "packet_length:%zu packet_count:%"PRIu32" max_bit_rate:%d "
747 p_sys->i_flags_broadcast,
748 p_sys->i_media_length,
749 p_sys->i_packet_length,
750 p_sys->i_packet_count,
751 p_sys->i_max_bit_rate,
752 p_sys->i_header_size );
754 /* *** send command 15 *** */
756 var_buffer_reinitwrite( &buffer, 0 );
757 var_buffer_add32( &buffer, 0 );
758 var_buffer_add32( &buffer, 0x8000 );
759 var_buffer_add32( &buffer, 0xffffffff );
760 var_buffer_add32( &buffer, 0x00 );
761 var_buffer_add32( &buffer, 0x00 );
762 var_buffer_add32( &buffer, 0x00 );
763 var_buffer_add64( &buffer, (((uint64_t)0x40ac2000)<<32) );
764 var_buffer_add32( &buffer, p_sys->i_header_packet_id_type );
765 var_buffer_add32( &buffer, 0x00 );
766 mms_CommandSend( p_access, 0x15, p_sys->i_command_level, 0x00,
767 buffer.p_data, buffer.i_data );
769 /* *** wait for reponse *** */
770 /* Commented out because it fails on some stream (no 0x11 answer) */
772 mms_CommandRead( p_access, 0x11, 0 );
774 if( p_sys->i_command != 0x11 )
777 "unknown answer (0x%x instead of 0x11)",
779 var_buffer_free( &buffer );
780 MMSClose( p_access );
785 /* *** now read header packet *** */
786 /* XXX could be split over multiples packets */
787 msg_Dbg( p_access, "reading header" );
790 if( mms_HeaderMediaRead( p_access, MMS_PACKET_HEADER ) < 0 )
792 msg_Err( p_access, "cannot receive header" );
793 var_buffer_free( &buffer );
794 MMSClose( p_access );
797 if( p_sys->i_header >= p_sys->i_header_size )
800 "header complete(%zu)",
805 "header incomplete (%zu/%zu), reading more",
807 p_sys->i_header_size );
810 /* *** parse header and get stream and their id *** */
811 /* get all streams properties,
813 * TODO : stream bitrates properties(optional)
814 * and bitrate mutual exclusion(optional) */
815 asf_HeaderParse ( &p_sys->asfh,
816 p_sys->p_header, p_sys->i_header );
817 asf_StreamSelect( &p_sys->asfh,
818 var_CreateGetInteger( p_access, "mms-maxbitrate" ),
819 var_CreateGetInteger( p_access, "mms-all" ),
820 var_CreateGetInteger( p_access, "audio" ),
821 var_CreateGetInteger( p_access, "video" ) );
823 /* *** now select stream we want to receive *** */
824 /* TODO take care of stream bitrate TODO */
827 var_buffer_reinitwrite( &buffer, 0 );
828 /* for now, select first audio and video stream */
829 for( i = 1; i < 128; i++ )
832 if( p_sys->asfh.stream[i].i_cat != ASF_STREAM_UNKNOWN )
837 var_buffer_add16( &buffer, 0xffff );
838 var_buffer_add16( &buffer, i );
844 if( p_sys->asfh.stream[i].i_selected )
846 var_buffer_add16( &buffer, 0x0000 );
848 "selecting stream[0x%x] %s (%d kb/s)",
850 ( p_sys->asfh.stream[i].i_cat == ASF_STREAM_AUDIO ) ?
852 p_sys->asfh.stream[i].i_bitrate / 1024);
856 var_buffer_add16( &buffer, 0x0002 );
858 "ignoring stream[0x%x] %s (%d kb/s)",
860 ( p_sys->asfh.stream[i].i_cat == ASF_STREAM_AUDIO ) ?
862 p_sys->asfh.stream[i].i_bitrate / 1024);
870 msg_Err( p_access, "cannot find any stream" );
871 var_buffer_free( &buffer );
872 MMSClose( p_access );
875 mms_CommandSend( p_access, 0x33,
877 0xffff | ( i_first << 16 ),
878 buffer.p_data, buffer.i_data );
880 mms_CommandRead( p_access, 0x21, 0 );
881 if( p_sys->i_command != 0x21 )
884 "unknown answer (0x%x instead of 0x21)",
886 var_buffer_free( &buffer );
887 MMSClose( p_access );
892 var_buffer_free( &buffer );
894 msg_Info( p_access, "connection successful" );
899 /****************************************************************************
900 * MMSStart : Start streaming
901 ****************************************************************************/
902 static int MMSStart( access_t *p_access, uint32_t i_packet )
904 access_sys_t *p_sys = p_access->p_sys;
907 /* *** start stream from packet 0 *** */
908 var_buffer_initwrite( &buffer, 0 );
909 var_buffer_add64( &buffer, 0 ); /* seek point in second */
910 var_buffer_add32( &buffer, 0xffffffff );
911 var_buffer_add32( &buffer, i_packet ); // begin from start
912 var_buffer_add8( &buffer, 0xff ); // stream time limit
913 var_buffer_add8( &buffer, 0xff ); // on 3bytes ...
914 var_buffer_add8( &buffer, 0xff ); //
915 var_buffer_add8( &buffer, 0x00 ); // don't use limit
916 var_buffer_add32( &buffer, p_sys->i_media_packet_id_type );
918 mms_CommandSend( p_access, 0x07, p_sys->i_command_level, 0x0001ffff,
919 buffer.p_data, buffer.i_data );
921 var_buffer_free( &buffer );
923 mms_CommandRead( p_access, 0x05, 0 );
925 if( p_sys->i_command != 0x05 )
928 "unknown answer (0x%x instead of 0x05)",
935 if( mms_HeaderMediaRead( p_access, MMS_PACKET_MEDIA ) < 0 )
937 msg_Dbg( p_access, "streaming started" );
942 /****************************************************************************
943 * MMSStop : Stop streaming
944 ****************************************************************************/
945 static int MMSStop( access_t *p_access )
947 access_sys_t *p_sys = p_access->p_sys;
949 /* *** stop stream but keep connection alive *** */
950 mms_CommandSend( p_access,
952 p_sys->i_command_level,
958 /****************************************************************************
959 * MMSClose : Close streaming and connection
960 ****************************************************************************/
961 static void MMSClose( access_t *p_access )
963 access_sys_t *p_sys = p_access->p_sys;
965 msg_Dbg( p_access, "Connection closed" );
967 /* *** tell server that we will disconnect *** */
968 mms_CommandSend( p_access,
970 p_sys->i_command_level,
974 /* *** close sockets *** */
975 net_Close( p_sys->i_handle_tcp );
976 if( p_sys->i_proto == MMS_PROTO_UDP )
978 net_Close( p_sys->i_handle_udp );
981 FREENULL( p_sys->p_cmd );
982 FREENULL( p_sys->p_media );
983 FREENULL( p_sys->p_header );
985 FREENULL( p_sys->psz_server_version );
986 FREENULL( p_sys->psz_tool_version );
987 FREENULL( p_sys->psz_update_player_url );
988 FREENULL( p_sys->psz_encryption_type );
991 /****************************************************************************
993 * MMS specific functions
995 ****************************************************************************/
996 static int mms_CommandSend( access_t *p_access, int i_command,
997 uint32_t i_prefix1, uint32_t i_prefix2,
998 uint8_t *p_data, int i_data_old )
1000 var_buffer_t buffer;
1001 access_sys_t *p_sys = p_access->p_sys;
1002 int i_data_by8, i_ret;
1003 int i_data = i_data_old;
1005 while( i_data & 0x7 ) i_data++;
1006 i_data_by8 = i_data >> 3;
1008 /* first init buffer */
1009 var_buffer_initwrite( &buffer, 0 );
1011 var_buffer_add32( &buffer, 0x00000001 ); /* start sequence */
1012 var_buffer_add32( &buffer, 0xB00BFACE );
1013 /* size after protocol type */
1014 var_buffer_add32( &buffer, i_data + MMS_CMD_HEADERSIZE - 16 );
1015 var_buffer_add32( &buffer, 0x20534d4d ); /* protocol "MMS " */
1016 var_buffer_add32( &buffer, i_data_by8 + 4 );
1017 var_buffer_add32( &buffer, p_sys->i_seq_num ); p_sys->i_seq_num++;
1018 var_buffer_add64( &buffer, 0 );
1019 var_buffer_add32( &buffer, i_data_by8 + 2 );
1020 var_buffer_add32( &buffer, 0x00030000 | i_command ); /* dir | command */
1021 var_buffer_add32( &buffer, i_prefix1 ); /* command specific */
1022 var_buffer_add32( &buffer, i_prefix2 ); /* command specific */
1024 /* specific command data */
1025 if( p_data && i_data > 0 )
1027 var_buffer_addmemory( &buffer, p_data, i_data_old );
1030 /* Append padding to the command data */
1031 var_buffer_add64( &buffer, 0 );
1034 vlc_mutex_lock( &p_sys->lock_netwrite );
1035 i_ret = net_Write( p_access, p_sys->i_handle_tcp, NULL, buffer.p_data,
1036 buffer.i_data - ( 8 - ( i_data - i_data_old ) ) );
1037 vlc_mutex_unlock( &p_sys->lock_netwrite );
1038 if( i_ret != buffer.i_data - ( 8 - ( i_data - i_data_old ) ) )
1040 var_buffer_free( &buffer );
1041 msg_Err( p_access, "failed to send command" );
1042 return VLC_EGENERIC;
1045 var_buffer_free( &buffer );
1049 static int NetFillBuffer( access_t *p_access )
1055 access_sys_t *p_sys = p_access->p_sys;
1057 struct pollfd ufd[2];
1058 unsigned timeout, nfd;
1060 /* FIXME when using udp */
1061 ssize_t i_tcp, i_udp;
1062 ssize_t i_tcp_read, i_udp_read;
1065 i_tcp = MMS_BUFFER_SIZE/2 - p_sys->i_buffer_tcp;
1067 if( p_sys->i_proto == MMS_PROTO_UDP )
1069 i_udp = MMS_BUFFER_SIZE/2 - p_sys->i_buffer_udp;
1073 i_udp = 0; /* there isn't udp socket */
1076 if( ( i_udp <= 0 ) && ( i_tcp <= 0 ) )
1078 msg_Warn( p_access, "nothing to read %d:%d", (int)i_tcp, (int)i_udp );
1083 /* msg_Warn( p_access, "ask for tcp:%d udp:%d", i_tcp, i_udp ); */
1086 /* Find if some data is available */
1091 /* Initialize file descriptor set */
1092 memset (ufd, 0, sizeof (ufd));
1097 ufd[nfd].fd = p_sys->i_handle_tcp;
1098 ufd[nfd].events = POLLIN;
1103 ufd[nfd].fd = p_sys->i_handle_udp;
1104 ufd[nfd].events = POLLIN;
1108 /* We'll wait 0.5 second if nothing happens */
1109 timeout = __MIN( 500, p_sys->i_timeout );
1111 if( i_try * timeout > p_sys->i_timeout )
1113 msg_Err(p_access, "no data received");
1117 if( i_try > 3 && (p_sys->i_buffer_tcp > 0 || p_sys->i_buffer_udp > 0) )
1122 if( !vlc_object_alive (p_access) || p_access->b_error )
1125 //msg_Dbg( p_access, "NetFillBuffer: trying again (select)" );
1127 } while( !(i_ret = poll( ufd, nfd, timeout)) ||
1128 (i_ret < 0 && errno == EINTR) );
1132 msg_Err( p_access, "network poll error (%m)" );
1136 i_tcp_read = i_udp_read = 0;
1138 if( ( i_tcp > 0 ) && ufd[0].revents )
1141 recv( p_sys->i_handle_tcp,
1142 p_sys->buffer_tcp + p_sys->i_buffer_tcp,
1143 i_tcp + MMS_BUFFER_SIZE/2, 0 );
1146 if( i_udp > 0 && ufd[i_tcp > 0].revents )
1148 i_udp_read = recv( p_sys->i_handle_udp,
1149 p_sys->buffer_udp + p_sys->i_buffer_udp,
1150 i_udp + MMS_BUFFER_SIZE/2, 0 );
1154 if( p_sys->i_proto == MMS_PROTO_UDP )
1156 msg_Dbg( p_access, "filling buffer TCP:%d+%d UDP:%d+%d",
1157 p_sys->i_buffer_tcp, i_tcp_read,
1158 p_sys->i_buffer_udp, i_udp_read );
1162 msg_Dbg( p_access, "filling buffer TCP:%d+%d",
1163 p_sys->i_buffer_tcp, i_tcp_read );
1167 if( i_tcp_read > 0 ) p_sys->i_buffer_tcp += i_tcp_read;
1168 if( i_udp_read > 0 ) p_sys->i_buffer_udp += i_udp_read;
1170 return i_tcp_read + i_udp_read;
1174 static int mms_ParseCommand( access_t *p_access,
1179 #define GET32( i_pos ) \
1180 ( p_sys->p_cmd[i_pos] + ( p_sys->p_cmd[i_pos +1] << 8 ) + \
1181 ( p_sys->p_cmd[i_pos + 2] << 16 ) + \
1182 ( p_sys->p_cmd[i_pos + 3] << 24 ) )
1184 access_sys_t *p_sys = p_access->p_sys;
1188 free( p_sys->p_cmd );
1189 p_sys->i_cmd = i_data;
1190 p_sys->p_cmd = malloc( i_data );
1191 assert( p_sys->p_cmd );
1192 memcpy( p_sys->p_cmd, p_data, i_data );
1194 *pi_used = i_data; /* by default */
1196 if( i_data < MMS_CMD_HEADERSIZE )
1198 msg_Warn( p_access, "truncated command (header incomplete)" );
1199 p_sys->i_command = 0;
1202 i_id = GetDWLE( p_data + 4 );
1203 i_length = GetDWLE( p_data + 8 ) + 16;
1205 if( i_id != 0xb00bface || i_length < 16 )
1208 "incorrect command header (0x%"PRIx32")", i_id );
1209 p_sys->i_command = 0;
1213 if( i_length > p_sys->i_cmd )
1216 "truncated command (missing %zu bytes)",
1217 (size_t)i_length - i_data );
1218 p_sys->i_command = 0;
1221 else if( i_length < p_sys->i_cmd )
1223 p_sys->i_cmd = i_length;
1224 *pi_used = i_length;
1228 "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",
1232 /* 12: protocol type "MMS " */
1235 /* 24: unknown (0) */
1236 /* 28: unknown (0) */
1242 p_sys->i_command = GET32( 36 ) & 0xffff;
1245 return MMS_PACKET_CMD;
1248 static int mms_ParsePacket( access_t *p_access,
1249 uint8_t *p_data, size_t i_data,
1252 access_sys_t *p_sys = p_access->p_sys;
1253 int i_packet_seq_num;
1254 size_t i_packet_length;
1255 uint32_t i_packet_id;
1257 *pi_used = i_data; /* default */
1260 msg_Warn( p_access, "truncated packet (header incomplete)" );
1264 i_packet_id = p_data[4];
1265 i_packet_seq_num = GetDWLE( p_data );
1266 i_packet_length = GetWLE( p_data + 6 );
1268 //msg_Warn( p_access, "------->i_packet_length=%d, i_data=%d", i_packet_length, i_data );
1270 if( i_packet_length > i_data || i_packet_length <= 8)
1272 /* msg_Dbg( p_access,
1273 "truncated packet (Declared %d bytes, Actual %d bytes)",
1274 i_packet_length, i_data ); */
1278 else if( i_packet_length < i_data )
1280 *pi_used = i_packet_length;
1283 if( i_packet_id == 0xff )
1286 "receive MMS UDP pair timing" );
1287 return( MMS_PACKET_UDP_TIMING );
1290 if( i_packet_id != p_sys->i_header_packet_id_type &&
1291 i_packet_id != p_sys->i_media_packet_id_type )
1293 msg_Warn( p_access, "incorrect Packet Id Type (0x%x)", i_packet_id );
1297 /* we now have a media or a header packet */
1298 if( i_packet_seq_num != p_sys->i_packet_seq_num )
1301 /* FIXME for udp could be just wrong order ? */
1303 "detected packet lost (%d != %d)",
1305 p_sys->i_packet_seq_num );
1308 p_sys->i_packet_seq_num = i_packet_seq_num + 1;
1310 if( i_packet_id == p_sys->i_header_packet_id_type )
1312 if( p_sys->p_header )
1314 p_sys->p_header = realloc_or_free( p_sys->p_header,
1315 p_sys->i_header + i_packet_length - 8 );
1316 assert( p_sys->p_header );
1317 memcpy( &p_sys->p_header[p_sys->i_header],
1318 p_data + 8, i_packet_length - 8 );
1319 p_sys->i_header += i_packet_length - 8;
1324 uint8_t* p_packet = malloc( i_packet_length - 8 ); // don't bother with preheader
1326 memcpy( p_packet, p_data + 8, i_packet_length - 8 );
1327 p_sys->p_header = p_packet;
1328 p_sys->i_header = i_packet_length - 8;
1330 /* msg_Dbg( p_access,
1331 "receive header packet (%d bytes)",
1332 i_packet_length - 8 ); */
1334 return MMS_PACKET_HEADER;
1338 uint8_t* p_packet = malloc( i_packet_length - 8 ); // don't bother with preheader
1340 memcpy( p_packet, p_data + 8, i_packet_length - 8 );
1341 FREENULL( p_sys->p_media );
1342 p_sys->p_media = p_packet;
1343 p_sys->i_media = i_packet_length - 8;
1344 p_sys->i_media_used = 0;
1345 /* msg_Dbg( p_access,
1346 "receive media packet (%d bytes)",
1347 i_packet_length - 8 ); */
1349 return MMS_PACKET_MEDIA;
1353 static int mms_ReceivePacket( access_t *p_access )
1355 access_sys_t *p_sys = p_access->p_sys;
1356 int i_packet_tcp_type;
1357 int i_packet_udp_type;
1361 bool b_refill = true;
1363 /* first if we need to refill buffer */
1364 if( p_sys->i_buffer_tcp >= MMS_CMD_HEADERSIZE )
1366 if( GetDWLE( p_sys->buffer_tcp + 4 ) == 0xb00bface )
1368 if( GetDWLE( p_sys->buffer_tcp + 8 ) + 16 <=
1369 (uint32_t)p_sys->i_buffer_tcp )
1374 else if( GetWLE( p_sys->buffer_tcp + 6 ) <= p_sys->i_buffer_tcp )
1379 if( p_sys->i_proto == MMS_PROTO_UDP && p_sys->i_buffer_udp >= 8 &&
1380 GetWLE( p_sys->buffer_udp + 6 ) <= p_sys->i_buffer_udp )
1385 if( b_refill && NetFillBuffer( p_access ) < 0 )
1387 msg_Warn( p_access, "cannot fill buffer" );
1391 i_packet_tcp_type = -1;
1392 i_packet_udp_type = -1;
1394 if( p_sys->i_buffer_tcp > 0 )
1398 if( GetDWLE( p_sys->buffer_tcp + 4 ) == 0xb00bface )
1401 mms_ParseCommand( p_access, p_sys->buffer_tcp,
1402 p_sys->i_buffer_tcp, &i_used );
1408 mms_ParsePacket( p_access, p_sys->buffer_tcp,
1409 p_sys->i_buffer_tcp, &i_used );
1411 if( i_used > 0 && i_used < MMS_BUFFER_SIZE )
1413 memmove( p_sys->buffer_tcp, p_sys->buffer_tcp + i_used,
1414 MMS_BUFFER_SIZE - i_used );
1416 p_sys->i_buffer_tcp -= i_used;
1418 else if( p_sys->i_buffer_udp > 0 )
1423 mms_ParsePacket( p_access, p_sys->buffer_udp,
1424 p_sys->i_buffer_udp, &i_used );
1426 if( i_used > 0 && i_used < MMS_BUFFER_SIZE )
1428 memmove( p_sys->buffer_udp, p_sys->buffer_udp + i_used,
1429 MMS_BUFFER_SIZE - i_used );
1431 p_sys->i_buffer_udp -= i_used;
1434 if( i_packet_tcp_type == MMS_PACKET_CMD && p_sys->i_command == 0x1b )
1436 mms_CommandSend( p_access, 0x1b, 0, 0, NULL, 0 );
1437 i_packet_tcp_type = -1;
1440 if( i_packet_tcp_type != -1 )
1442 return i_packet_tcp_type;
1444 else if( i_packet_udp_type != -1 )
1446 return i_packet_udp_type;
1451 static int mms_ReceiveCommand( access_t *p_access )
1453 access_sys_t *p_sys = p_access->p_sys;
1460 if( NetFillBuffer( p_access ) < 0 )
1462 msg_Warn( p_access, "cannot fill buffer" );
1463 return VLC_EGENERIC;
1465 if( p_sys->i_buffer_tcp > 0 )
1467 i_status = mms_ParseCommand( p_access, p_sys->buffer_tcp,
1468 p_sys->i_buffer_tcp, &i_used );
1469 if( i_used < MMS_BUFFER_SIZE )
1471 memmove( p_sys->buffer_tcp, p_sys->buffer_tcp + i_used,
1472 MMS_BUFFER_SIZE - i_used );
1474 p_sys->i_buffer_tcp -= i_used;
1478 return VLC_EGENERIC;
1481 if( p_sys->i_command == 0x1b )
1483 mms_CommandSend( p_access, 0x1b, 0, 0, NULL, 0 );
1492 return VLC_EGENERIC;
1499 #define MMS_RETRY_MAX 10
1500 #define MMS_RETRY_SLEEP 50000
1502 static int mms_CommandRead( access_t *p_access, int i_command1,
1505 access_sys_t *p_sys = p_access->p_sys;
1509 for( i_count = 0; i_count < MMS_RETRY_MAX; )
1511 i_status = mms_ReceiveCommand( p_access );
1512 if( i_status < 0 || p_sys->i_command == 0 )
1515 msleep( MMS_RETRY_SLEEP );
1517 else if( i_command1 == 0 && i_command2 == 0)
1521 else if( p_sys->i_command == i_command1 ||
1522 p_sys->i_command == i_command2 )
1528 switch( p_sys->i_command )
1531 msg_Warn( p_access, "socket closed by server" );
1532 p_access->info.b_eof = true;
1533 return VLC_EGENERIC;
1535 msg_Warn( p_access, "end of media stream" );
1536 p_access->info.b_eof = true;
1537 return VLC_EGENERIC;
1543 p_access->info.b_eof = true;
1544 msg_Warn( p_access, "failed to receive command (aborting)" );
1546 return VLC_EGENERIC;
1550 static int mms_HeaderMediaRead( access_t *p_access, int i_type )
1552 access_sys_t *p_sys = p_access->p_sys;
1555 for( i_count = 0; i_count < MMS_RETRY_MAX; )
1559 if( !vlc_object_alive (p_access) )
1562 i_status = mms_ReceivePacket( p_access );
1566 msg_Warn( p_access, "cannot receive header (%d/%d)",
1567 i_count, MMS_RETRY_MAX );
1568 msleep( MMS_RETRY_SLEEP );
1570 else if( i_status == i_type || i_type == MMS_PACKET_ANY )
1574 else if( i_status == MMS_PACKET_CMD )
1576 switch( p_sys->i_command )
1579 msg_Warn( p_access, "socket closed by server" );
1580 p_access->info.b_eof = true;
1583 msg_Warn( p_access, "end of media stream" );
1584 p_access->info.b_eof = true;
1587 /* XXX not too dificult to be done EXCEPT that we
1588 * need to restart demuxer... and I don't see how we
1589 * could do that :p */
1591 "reinitialization needed --> unsupported" );
1592 p_access->info.b_eof = true;
1600 msg_Err( p_access, "cannot receive %s (aborting)",
1601 ( i_type == MMS_PACKET_HEADER ) ? "header" : "media data" );
1602 p_access->info.b_eof = true;
1606 static void* KeepAliveThread( void *p_data )
1608 mmstu_keepalive_t *p_thread = (mmstu_keepalive_t *) p_data;
1609 access_t *p_access = p_thread->p_access;
1611 vlc_mutex_lock( &p_thread->lock );
1612 mutex_cleanup_push( &p_thread->lock );
1616 /* Do nothing until paused (if ever) */
1617 while( !p_thread->b_paused )
1618 vlc_cond_wait( &p_thread->wait, &p_thread->lock );
1624 /* Send keep-alive every ten seconds */
1625 vlc_mutex_unlock( &p_thread->lock );
1626 canc = vlc_savecancel();
1628 mms_CommandSend( p_access, 0x1b, 0, 0, NULL, 0 );
1630 vlc_restorecancel( canc );
1631 vlc_mutex_lock( &p_thread->lock );
1633 msleep( 10 * CLOCK_FREQ );
1635 while( p_thread->b_paused );