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>
44 #ifdef HAVE_SYS_TIME_H
45 # include <sys/time.h>
47 #ifdef HAVE_SYS_TYPES_H
48 # include <sys/types.h>
50 #ifdef HAVE_SYS_STAT_H
51 # include <sys/stat.h>
57 #include <vlc_network.h>
67 /****************************************************************************
69 * MMSProtocole documentation found at http://get.to/sdp
70 ****************************************************************************/
72 /*****************************************************************************
74 *****************************************************************************/
75 int MMSTUOpen ( access_t * );
76 void MMSTUClose ( access_t * );
79 static block_t *Block( access_t * );
80 static int Seek( access_t *, int64_t );
81 static int Control( access_t *, int, va_list );
83 static int MMSOpen ( access_t *, vlc_url_t *, int );
84 static int MMSStart( access_t *, uint32_t );
85 static int MMSStop ( access_t * );
86 static void MMSClose( access_t * );
89 static int mms_CommandRead( access_t *p_access, int i_command1, int i_command2 );
90 static int mms_CommandSend( access_t *, int, uint32_t, uint32_t, uint8_t *, int );
92 static int mms_HeaderMediaRead( access_t *, int );
94 static int mms_ReceivePacket( access_t * );
96 static void* KeepAliveThread( void * );
98 int MMSTUOpen( access_t *p_access )
104 /* Set up p_access */
105 access_InitFields( p_access );
106 p_access->pf_read = NULL;
107 p_access->pf_block = Block;
108 p_access->pf_control = Control;
109 p_access->pf_seek = Seek;
111 p_access->p_sys = p_sys = calloc( 1, sizeof( access_sys_t ) );
112 if( !p_sys ) return VLC_ENOMEM;
114 p_sys->i_timeout = var_CreateGetInteger( p_access, "mms-timeout" );
116 vlc_mutex_init( &p_sys->lock_netwrite );
118 /* *** Parse URL and get server addr/port and path *** */
119 vlc_UrlParse( &p_sys->url, p_access->psz_path, 0 );
120 if( p_sys->url.psz_host == NULL || *p_sys->url.psz_host == '\0' )
122 msg_Err( p_access, "invalid server name" );
123 vlc_UrlClean( &p_sys->url );
124 vlc_mutex_destroy( &p_sys->lock_netwrite );
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 if( !p_access->b_die )
154 i_status = MMSOpen( p_access, &p_sys->url, MMS_PROTO_UDP );
159 i_status = MMSOpen( p_access, &p_sys->url, i_proto );
164 msg_Err( p_access, "cannot connect to server" );
165 vlc_UrlClean( &p_sys->url );
166 vlc_mutex_destroy( &p_sys->lock_netwrite );
171 msg_Dbg( p_access, "connected to %s:%d", p_sys->url.psz_host, p_sys->url.i_port );
175 * broadcast yy=0x02, xx= 0x00
176 * pre-recorded yy=0x01, xx= 0x80 if video, 0x00 no video
178 if( p_sys->i_packet_count <= 0 && p_sys->asfh.i_data_packets_count > 0 )
180 p_sys->i_packet_count = p_sys->asfh.i_data_packets_count;
182 if( p_sys->i_packet_count <= 0 || ( p_sys->i_flags_broadcast >> 24 ) == 0x02 )
184 p_sys->b_seekable = false;
188 p_sys->b_seekable = true;
189 p_access->info.i_size =
190 (uint64_t)p_sys->i_header +
191 (uint64_t)p_sys->i_packet_count * (uint64_t)p_sys->i_packet_length;
194 /* *** Start stream *** */
195 if( MMSStart( p_access, 0xffffffff ) < 0 )
197 msg_Err( p_access, "cannot start stream" );
198 MMSTUClose ( p_access );
202 /* Keep the connection alive when paused */
203 p_sys->p_keepalive = malloc( sizeof( mmstu_keepalive_t ) );
204 p_sys->p_keepalive->p_access = p_access;
205 vlc_mutex_init( &p_sys->p_keepalive->lock );
206 vlc_cond_init( &p_sys->p_keepalive->wait );
207 p_sys->p_keepalive->b_paused = false;
208 if( vlc_clone( &p_sys->p_keepalive->handle, KeepAliveThread,
209 p_sys->p_keepalive, VLC_THREAD_PRIORITY_LOW ) )
211 vlc_cond_destroy( &p_sys->p_keepalive->wait );
212 vlc_mutex_destroy( &p_sys->p_keepalive->lock );
213 free( p_sys->p_keepalive );
214 p_sys->p_keepalive = NULL;
220 /*****************************************************************************
221 * Close: free unused data structures
222 *****************************************************************************/
223 void MMSTUClose( access_t *p_access )
225 access_sys_t *p_sys = p_access->p_sys;
227 if( p_sys->p_keepalive )
229 vlc_cancel( p_sys->p_keepalive->handle );
230 vlc_join( p_sys->p_keepalive->handle, NULL );
231 vlc_cond_destroy( &p_sys->p_keepalive->wait );
232 vlc_mutex_destroy( &p_sys->p_keepalive->lock );
233 free( p_sys->p_keepalive );
236 /* close connection with server */
237 MMSClose( p_access );
240 vlc_UrlClean( &p_sys->url );
241 vlc_mutex_destroy( &p_sys->lock_netwrite );
246 /*****************************************************************************
248 *****************************************************************************/
249 static int Control( access_t *p_access, int i_query, va_list args )
251 access_sys_t *p_sys = p_access->p_sys;
260 case ACCESS_CAN_SEEK:
261 pb_bool = (bool*)va_arg( args, bool* );
262 *pb_bool = p_sys->b_seekable;
265 case ACCESS_CAN_FASTSEEK:
266 pb_bool = (bool*)va_arg( args, bool* );
270 case ACCESS_CAN_PAUSE:
271 pb_bool = (bool*)va_arg( args, bool* );
275 case ACCESS_CAN_CONTROL_PACE:
276 pb_bool = (bool*)va_arg( args, bool* );
278 #if 0 /* Disable for now until we have a clock synchro algo
279 * which works with something else than MPEG over UDP */
286 case ACCESS_GET_PTS_DELAY:
287 pi_64 = (int64_t*)va_arg( args, int64_t * );
288 *pi_64 = (int64_t)var_GetInteger( p_access, "mms-caching" ) * INT64_C(1000);
291 case ACCESS_GET_PRIVATE_ID_STATE:
292 i_int = (int)va_arg( args, int );
293 pb_bool = (bool *)va_arg( args, bool * );
295 if( i_int < 0 || i_int > 127 )
297 *pb_bool = p_sys->asfh.stream[i_int].i_selected ? true : false;
301 case ACCESS_SET_PAUSE_STATE:
302 b_bool = (bool)va_arg( args, int );
306 Seek( p_access, p_access->info.i_pos );
308 vlc_mutex_lock( &p_sys->p_keepalive->lock );
309 p_sys->p_keepalive->b_paused = b_bool;
311 vlc_cond_signal( &p_sys->p_keepalive->wait );
312 vlc_mutex_unlock( &p_sys->p_keepalive->lock );
315 case ACCESS_GET_TITLE_INFO:
316 case ACCESS_SET_TITLE:
317 case ACCESS_SET_SEEKPOINT:
318 case ACCESS_SET_PRIVATE_ID_STATE:
319 case ACCESS_GET_CONTENT_TYPE:
324 msg_Warn( p_access, "unimplemented query in control" );
331 /*****************************************************************************
332 * Seek: try to go at the right place
333 *****************************************************************************/
334 static int Seek( access_t * p_access, int64_t i_pos )
336 access_sys_t *p_sys = p_access->p_sys;
344 if( i_pos < p_sys->i_header)
347 if( p_access->info.i_pos < p_sys->i_header )
349 /* no need to restart stream, it was already one
350 * or no stream was yet read */
351 p_access->info.i_pos = i_pos;
356 i_packet = 0xffffffff;
362 i_packet = ( i_pos - p_sys->i_header ) / p_sys->i_packet_length;
363 i_offset = ( i_pos - p_sys->i_header ) % p_sys->i_packet_length;
365 if( p_sys->b_seekable && i_packet >= p_sys->i_packet_count )
368 msg_Dbg( p_access, "seeking to %"PRId64 " (packet:%d)", i_pos, i_packet );
371 msg_Dbg( p_access, "stream stopped (seek)" );
373 /* *** restart stream *** */
374 var_buffer_initwrite( &buffer, 0 );
375 var_buffer_add64( &buffer, 0 ); /* seek point in second */
376 var_buffer_add32( &buffer, 0xffffffff );
377 var_buffer_add32( &buffer, i_packet ); // begin from start
378 var_buffer_add8( &buffer, 0xff ); // stream time limit
379 var_buffer_add8( &buffer, 0xff ); // on 3bytes ...
380 var_buffer_add8( &buffer, 0xff ); //
381 var_buffer_add8( &buffer, 0x00 ); // don't use limit
382 var_buffer_add32( &buffer, p_sys->i_media_packet_id_type );
384 mms_CommandSend( p_access, 0x07, p_sys->i_command_level, 0x0001ffff,
385 buffer.p_data, buffer.i_data );
387 var_buffer_free( &buffer );
390 while( vlc_object_alive (p_access) )
392 if( mms_HeaderMediaRead( p_access, MMS_PACKET_CMD ) < 0 )
394 p_access->info.b_eof = true;
398 if( p_sys->i_command == 0x1e )
400 msg_Dbg( p_access, "received 0x1e (seek)" );
405 while( vlc_object_alive (p_access) )
407 if( mms_HeaderMediaRead( p_access, MMS_PACKET_CMD ) < 0 )
409 p_access->info.b_eof = true;
412 if( p_sys->i_command == 0x05 )
414 msg_Dbg( p_access, "received 0x05 (seek)" );
420 if( mms_HeaderMediaRead( p_access, MMS_PACKET_MEDIA ) < 0 )
422 p_access->info.b_eof = true;
426 msg_Dbg( p_access, "Streaming restarted" );
428 p_sys->i_media_used += i_offset;
429 p_access->info.i_pos = i_pos;
430 p_access->info.b_eof = false;
435 /*****************************************************************************
437 *****************************************************************************/
438 static block_t *Block( access_t *p_access )
440 access_sys_t *p_sys = p_access->p_sys;
442 if( p_access->info.b_eof )
445 if( p_access->info.i_pos < p_sys->i_header )
447 const size_t i_copy = p_sys->i_header - p_access->info.i_pos;
449 block_t *p_block = block_New( p_access, i_copy );
453 memcpy( p_block->p_buffer, &p_sys->p_header[p_access->info.i_pos], i_copy );
454 p_access->info.i_pos += i_copy;
457 else if( p_sys->p_media && p_sys->i_media_used < __MAX( p_sys->i_media, p_sys->i_packet_length ) )
460 size_t i_padding = 0;
462 if( p_sys->i_media_used < p_sys->i_media )
463 i_copy = p_sys->i_media - p_sys->i_media_used;
464 if( __MAX( p_sys->i_media, p_sys->i_media_used ) < p_sys->i_packet_length )
465 i_padding = p_sys->i_packet_length - __MAX( p_sys->i_media, p_sys->i_media_used );
467 block_t *p_block = block_New( p_access, i_copy + i_padding );
472 memcpy( &p_block->p_buffer[0], &p_sys->p_media[p_sys->i_media_used], i_copy );
474 memset( &p_block->p_buffer[i_copy], 0, i_padding );
476 p_sys->i_media_used += i_copy + i_padding;
477 p_access->info.i_pos += i_copy + i_padding;
481 mms_HeaderMediaRead( p_access, MMS_PACKET_MEDIA );
485 /****************************************************************************
486 * MMSOpen : Open a connection with the server over mmst or mmsu
487 ****************************************************************************/
488 static int MMSOpen( access_t *p_access, vlc_url_t *p_url, int i_proto )
490 access_sys_t *p_sys = p_access->p_sys;
491 int b_udp = ( i_proto == MMS_PROTO_UDP ) ? 1 : 0;
496 int i_server_version;
498 int i_update_player_url;
499 int i_encryption_type;
506 /* *** Open a TCP connection with server *** */
507 msg_Dbg( p_access, "waiting for connection..." );
508 p_sys->i_handle_tcp = net_ConnectTCP( p_access, p_url->psz_host, p_url->i_port );
509 if( p_sys->i_handle_tcp < 0 )
511 msg_Err( p_access, "failed to open a connection (tcp)" );
515 "connection(tcp) with \"%s:%d\" successful",
519 /* *** Bind port if UDP protocol is selected *** */
522 if( net_GetSockAddress( p_sys->i_handle_tcp, p_sys->sz_bind_addr,
525 net_Close( p_sys->i_handle_tcp );
529 p_sys->i_handle_udp = net_ListenUDP1( (vlc_object_t *)p_access, p_sys->sz_bind_addr,
531 if( p_sys->i_handle_udp < 0 )
533 msg_Err( p_access, "failed to open a connection (udp)" );
534 net_Close( p_sys->i_handle_tcp );
538 "connection(udp) at \"%s:%d\" successful",
539 p_sys->sz_bind_addr, 7000 );
542 /* *** Init context for mms prototcol *** */
543 GenerateGuid ( &p_sys->guid ); /* used to identify client by server */
545 "generated guid: "GUID_FMT,
546 GUID_PRINT( p_sys->guid ) );
547 p_sys->i_command_level = 1; /* updated after 0x1A command */
548 p_sys->i_seq_num = 0;
549 p_sys->i_media_packet_id_type = 0x04;
550 p_sys->i_header_packet_id_type = 0x02;
551 p_sys->i_proto = i_proto;
552 p_sys->i_packet_seq_num = 0;
553 p_sys->p_header = NULL;
555 p_sys->p_media = NULL;
557 p_sys->i_media_used = 0;
559 p_access->info.i_pos = 0;
560 p_sys->i_buffer_tcp = 0;
561 p_sys->i_buffer_udp = 0;
564 p_access->info.b_eof = false;
566 /* *** send command 1 : connection request *** */
567 var_buffer_initwrite( &buffer, 0 );
568 var_buffer_add16( &buffer, 0x001c );
569 var_buffer_add16( &buffer, 0x0003 );
571 "NSPlayer/7.0.0.1956; {"GUID_FMT"}; Host: %s",
572 GUID_PRINT( p_sys->guid ),
574 var_buffer_addUTF16( &buffer, tmp );
576 mms_CommandSend( p_access,
577 0x01, /* connexion request */
578 0x00000000, /* flags, FIXME */
579 0x0004000b, /* ???? */
583 if( mms_CommandRead( p_access, 0x01, 0 ) < 0 )
585 var_buffer_free( &buffer );
586 MMSClose( p_access );
590 i_server_version = GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 32 );
591 i_tool_version = GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 36 );
592 i_update_player_url = GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 40 );
593 i_encryption_type = GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 44 );
594 p = (uint16_t*)( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 48 );
595 #define GETUTF16( psz, size ) \
598 psz = malloc( size + 1); \
599 for( i = 0; i < size; i++ ) \
606 GETUTF16( p_sys->psz_server_version, i_server_version );
607 GETUTF16( p_sys->psz_tool_version, i_tool_version );
608 GETUTF16( p_sys->psz_update_player_url, i_update_player_url );
609 GETUTF16( p_sys->psz_encryption_type, i_encryption_type );
612 "0x01 --> server_version:\"%s\" tool_version:\"%s\" update_player_url:\"%s\" encryption_type:\"%s\"",
613 p_sys->psz_server_version,
614 p_sys->psz_tool_version,
615 p_sys->psz_update_player_url,
616 p_sys->psz_encryption_type );
618 /* *** should make an 18 command to make data timing *** */
620 /* *** send command 2 : transport protocol selection *** */
621 var_buffer_reinitwrite( &buffer, 0 );
622 var_buffer_add32( &buffer, 0x00000000 );
623 var_buffer_add32( &buffer, 0x000a0000 );
624 var_buffer_add32( &buffer, 0x00000002 );
634 sprintf( tmp, "\\\\192.168.0.1\\TCP\\1242" );
636 var_buffer_addUTF16( &buffer, tmp );
637 var_buffer_add16( &buffer, '0' );
639 mms_CommandSend( p_access,
640 0x02, /* connexion request */
641 0x00000000, /* flags, FIXME */
642 0xffffffff, /* ???? */
646 /* *** response from server, should be 0x02 or 0x03 *** */
647 mms_CommandRead( p_access, 0x02, 0x03 );
648 if( p_sys->i_command == 0x03 )
651 "%s protocol selection failed", b_udp ? "UDP" : "TCP" );
652 var_buffer_free( &buffer );
653 MMSClose( p_access );
656 else if( p_sys->i_command != 0x02 )
658 msg_Warn( p_access, "received command isn't 0x02 in reponse to 0x02" );
661 /* *** send command 5 : media file name/path requested *** */
662 var_buffer_reinitwrite( &buffer, 0 );
663 var_buffer_add64( &buffer, 0 );
665 /* media file path shouldn't start with / character */
666 mediapath = p_url->psz_path;
667 if ( *mediapath == '/' )
671 var_buffer_addUTF16( &buffer, mediapath );
673 mms_CommandSend( p_access,
675 p_sys->i_command_level,
680 /* *** wait for reponse *** */
681 mms_CommandRead( p_access, 0x1a, 0x06 );
683 /* test if server send 0x1A answer */
684 if( p_sys->i_command == 0x1A )
686 msg_Err( p_access, "id/password requested (not yet supported)" );
688 var_buffer_free( &buffer );
689 MMSClose( p_access );
692 if( p_sys->i_command != 0x06 )
695 "unknown answer (0x%x instead of 0x06)",
697 var_buffer_free( &buffer );
698 MMSClose( p_access );
702 /* 1 for file ok, 2 for authen ok */
703 switch( GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE ) )
706 msg_Dbg( p_access, "media file name/path accepted" );
709 msg_Dbg( p_access, "authentication accepted" );
713 msg_Err( p_access, "error while asking for file %d",
714 GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE ) );
715 var_buffer_free( &buffer );
716 MMSClose( p_access );
720 p_sys->i_flags_broadcast =
721 GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 12 );
722 p_sys->i_media_length =
723 GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 24 );
724 p_sys->i_packet_length =
725 GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 44 );
726 p_sys->i_packet_count =
727 GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 48 );
728 p_sys->i_max_bit_rate =
729 GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 56 );
730 p_sys->i_header_size =
731 GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 60 );
734 "answer 0x06 flags:0x%8.8"PRIx32" media_length:%"PRIu32"s "
735 "packet_length:%u packet_count:%"PRId32" max_bit_rate:%d "
737 p_sys->i_flags_broadcast,
738 p_sys->i_media_length,
739 (unsigned)p_sys->i_packet_length,
740 p_sys->i_packet_count,
741 p_sys->i_max_bit_rate,
742 p_sys->i_header_size );
744 /* *** send command 15 *** */
746 var_buffer_reinitwrite( &buffer, 0 );
747 var_buffer_add32( &buffer, 0 );
748 var_buffer_add32( &buffer, 0x8000 );
749 var_buffer_add32( &buffer, 0xffffffff );
750 var_buffer_add32( &buffer, 0x00 );
751 var_buffer_add32( &buffer, 0x00 );
752 var_buffer_add32( &buffer, 0x00 );
753 var_buffer_add64( &buffer, (((uint64_t)0x40ac2000)<<32) );
754 var_buffer_add32( &buffer, p_sys->i_header_packet_id_type );
755 var_buffer_add32( &buffer, 0x00 );
756 mms_CommandSend( p_access, 0x15, p_sys->i_command_level, 0x00,
757 buffer.p_data, buffer.i_data );
759 /* *** wait for reponse *** */
760 /* Commented out because it fails on some stream (no 0x11 answer) */
762 mms_CommandRead( p_access, 0x11, 0 );
764 if( p_sys->i_command != 0x11 )
767 "unknown answer (0x%x instead of 0x11)",
769 var_buffer_free( &buffer );
770 MMSClose( p_access );
775 /* *** now read header packet *** */
776 /* XXX could be split over multiples packets */
777 msg_Dbg( p_access, "reading header" );
780 if( mms_HeaderMediaRead( p_access, MMS_PACKET_HEADER ) < 0 )
782 msg_Err( p_access, "cannot receive header" );
783 var_buffer_free( &buffer );
784 MMSClose( p_access );
787 if( p_sys->i_header >= p_sys->i_header_size )
790 "header complete(%zu)",
795 "header incomplete (%zu/%zu), reading more",
797 p_sys->i_header_size );
800 /* *** parse header and get stream and their id *** */
801 /* get all streams properties,
803 * TODO : stream bitrates properties(optional)
804 * and bitrate mutual exclusion(optional) */
805 asf_HeaderParse ( &p_sys->asfh,
806 p_sys->p_header, p_sys->i_header );
807 asf_StreamSelect( &p_sys->asfh,
808 var_CreateGetInteger( p_access, "mms-maxbitrate" ),
809 var_CreateGetInteger( p_access, "mms-all" ),
810 var_CreateGetInteger( p_access, "audio" ),
811 var_CreateGetInteger( p_access, "video" ) );
813 /* *** now select stream we want to receive *** */
814 /* TODO take care of stream bitrate TODO */
817 var_buffer_reinitwrite( &buffer, 0 );
818 /* for now, select first audio and video stream */
819 for( i = 1; i < 128; i++ )
822 if( p_sys->asfh.stream[i].i_cat != ASF_STREAM_UNKNOWN )
827 var_buffer_add16( &buffer, 0xffff );
828 var_buffer_add16( &buffer, i );
834 if( p_sys->asfh.stream[i].i_selected )
836 var_buffer_add16( &buffer, 0x0000 );
838 "selecting stream[0x%x] %s (%d kb/s)",
840 ( p_sys->asfh.stream[i].i_cat == ASF_STREAM_AUDIO ) ?
842 p_sys->asfh.stream[i].i_bitrate / 1024);
846 var_buffer_add16( &buffer, 0x0002 );
848 "ignoring 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);
860 msg_Err( p_access, "cannot find any stream" );
861 var_buffer_free( &buffer );
862 MMSClose( p_access );
865 mms_CommandSend( p_access, 0x33,
867 0xffff | ( i_first << 16 ),
868 buffer.p_data, buffer.i_data );
870 mms_CommandRead( p_access, 0x21, 0 );
871 if( p_sys->i_command != 0x21 )
874 "unknown answer (0x%x instead of 0x21)",
876 var_buffer_free( &buffer );
877 MMSClose( p_access );
882 var_buffer_free( &buffer );
884 msg_Info( p_access, "connection successful" );
889 /****************************************************************************
890 * MMSStart : Start streaming
891 ****************************************************************************/
892 static int MMSStart( access_t *p_access, uint32_t i_packet )
894 access_sys_t *p_sys = p_access->p_sys;
897 /* *** start stream from packet 0 *** */
898 var_buffer_initwrite( &buffer, 0 );
899 var_buffer_add64( &buffer, 0 ); /* seek point in second */
900 var_buffer_add32( &buffer, 0xffffffff );
901 var_buffer_add32( &buffer, i_packet ); // begin from start
902 var_buffer_add8( &buffer, 0xff ); // stream time limit
903 var_buffer_add8( &buffer, 0xff ); // on 3bytes ...
904 var_buffer_add8( &buffer, 0xff ); //
905 var_buffer_add8( &buffer, 0x00 ); // don't use limit
906 var_buffer_add32( &buffer, p_sys->i_media_packet_id_type );
908 mms_CommandSend( p_access, 0x07, p_sys->i_command_level, 0x0001ffff,
909 buffer.p_data, buffer.i_data );
911 var_buffer_free( &buffer );
913 mms_CommandRead( p_access, 0x05, 0 );
915 if( p_sys->i_command != 0x05 )
918 "unknown answer (0x%x instead of 0x05)",
925 if( mms_HeaderMediaRead( p_access, MMS_PACKET_MEDIA ) < 0 )
927 msg_Dbg( p_access, "streaming started" );
932 /****************************************************************************
933 * MMSStop : Stop streaming
934 ****************************************************************************/
935 static int MMSStop( access_t *p_access )
937 access_sys_t *p_sys = p_access->p_sys;
939 /* *** stop stream but keep connection alive *** */
940 mms_CommandSend( p_access,
942 p_sys->i_command_level,
948 /****************************************************************************
949 * MMSClose : Close streaming and connection
950 ****************************************************************************/
951 static void MMSClose( access_t *p_access )
953 access_sys_t *p_sys = p_access->p_sys;
955 msg_Dbg( p_access, "Connection closed" );
957 /* *** tell server that we will disconnect *** */
958 mms_CommandSend( p_access,
960 p_sys->i_command_level,
964 /* *** close sockets *** */
965 net_Close( p_sys->i_handle_tcp );
966 if( p_sys->i_proto == MMS_PROTO_UDP )
968 net_Close( p_sys->i_handle_udp );
971 FREENULL( p_sys->p_cmd );
972 FREENULL( p_sys->p_media );
973 FREENULL( p_sys->p_header );
975 FREENULL( p_sys->psz_server_version );
976 FREENULL( p_sys->psz_tool_version );
977 FREENULL( p_sys->psz_update_player_url );
978 FREENULL( p_sys->psz_encryption_type );
981 /****************************************************************************
983 * MMS specific functions
985 ****************************************************************************/
986 static int mms_CommandSend( access_t *p_access, int i_command,
987 uint32_t i_prefix1, uint32_t i_prefix2,
988 uint8_t *p_data, int i_data_old )
991 access_sys_t *p_sys = p_access->p_sys;
992 int i_data_by8, i_ret;
993 int i_data = i_data_old;
995 while( i_data & 0x7 ) i_data++;
996 i_data_by8 = i_data >> 3;
998 /* first init buffer */
999 var_buffer_initwrite( &buffer, 0 );
1001 var_buffer_add32( &buffer, 0x00000001 ); /* start sequence */
1002 var_buffer_add32( &buffer, 0xB00BFACE );
1003 /* size after protocol type */
1004 var_buffer_add32( &buffer, i_data + MMS_CMD_HEADERSIZE - 16 );
1005 var_buffer_add32( &buffer, 0x20534d4d ); /* protocol "MMS " */
1006 var_buffer_add32( &buffer, i_data_by8 + 4 );
1007 var_buffer_add32( &buffer, p_sys->i_seq_num ); p_sys->i_seq_num++;
1008 var_buffer_add64( &buffer, 0 );
1009 var_buffer_add32( &buffer, i_data_by8 + 2 );
1010 var_buffer_add32( &buffer, 0x00030000 | i_command ); /* dir | command */
1011 var_buffer_add32( &buffer, i_prefix1 ); /* command specific */
1012 var_buffer_add32( &buffer, i_prefix2 ); /* command specific */
1014 /* specific command data */
1015 if( p_data && i_data > 0 )
1017 var_buffer_addmemory( &buffer, p_data, i_data_old );
1020 /* Append padding to the command data */
1021 var_buffer_add64( &buffer, 0 );
1024 vlc_mutex_lock( &p_sys->lock_netwrite );
1025 i_ret = net_Write( p_access, p_sys->i_handle_tcp, NULL, buffer.p_data,
1026 buffer.i_data - ( 8 - ( i_data - i_data_old ) ) );
1027 vlc_mutex_unlock( &p_sys->lock_netwrite );
1028 if( i_ret != buffer.i_data - ( 8 - ( i_data - i_data_old ) ) )
1030 msg_Err( p_access, "failed to send command" );
1031 return VLC_EGENERIC;
1034 var_buffer_free( &buffer );
1038 static int NetFillBuffer( access_t *p_access )
1044 access_sys_t *p_sys = p_access->p_sys;
1046 struct pollfd ufd[2];
1047 unsigned timeout, nfd;
1049 /* FIXME when using udp */
1050 ssize_t i_tcp, i_udp;
1051 ssize_t i_tcp_read, i_udp_read;
1054 i_tcp = MMS_BUFFER_SIZE/2 - p_sys->i_buffer_tcp;
1056 if( p_sys->i_proto == MMS_PROTO_UDP )
1058 i_udp = MMS_BUFFER_SIZE/2 - p_sys->i_buffer_udp;
1062 i_udp = 0; /* there isn't udp socket */
1065 if( ( i_udp <= 0 ) && ( i_tcp <= 0 ) )
1067 msg_Warn( p_access, "nothing to read %d:%d", (int)i_tcp, (int)i_udp );
1072 /* msg_Warn( p_access, "ask for tcp:%d udp:%d", i_tcp, i_udp ); */
1075 /* Find if some data is available */
1080 /* Initialize file descriptor set */
1081 memset (ufd, 0, sizeof (ufd));
1086 ufd[nfd].fd = p_sys->i_handle_tcp;
1087 ufd[nfd].events = POLLIN;
1092 ufd[nfd].fd = p_sys->i_handle_udp;
1093 ufd[nfd].events = POLLIN;
1097 /* We'll wait 0.5 second if nothing happens */
1098 timeout = __MIN( 500, p_sys->i_timeout );
1100 if( i_try * timeout > p_sys->i_timeout )
1102 msg_Err(p_access, "no data received");
1106 if( i_try > 3 && (p_sys->i_buffer_tcp > 0 || p_sys->i_buffer_udp > 0) )
1111 if( !vlc_object_alive (p_access) || p_access->b_error )
1114 //msg_Dbg( p_access, "NetFillBuffer: trying again (select)" );
1116 } while( !(i_ret = poll( ufd, nfd, timeout)) ||
1117 (i_ret < 0 && errno == EINTR) );
1121 msg_Err( p_access, "network poll error (%m)" );
1125 i_tcp_read = i_udp_read = 0;
1127 if( ( i_tcp > 0 ) && ufd[0].revents )
1130 recv( p_sys->i_handle_tcp,
1131 p_sys->buffer_tcp + p_sys->i_buffer_tcp,
1132 i_tcp + MMS_BUFFER_SIZE/2, 0 );
1135 if( i_udp > 0 && ufd[i_tcp > 0].revents )
1137 i_udp_read = recv( p_sys->i_handle_udp,
1138 p_sys->buffer_udp + p_sys->i_buffer_udp,
1139 i_udp + MMS_BUFFER_SIZE/2, 0 );
1143 if( p_sys->i_proto == MMS_PROTO_UDP )
1145 msg_Dbg( p_access, "filling buffer TCP:%d+%d UDP:%d+%d",
1146 p_sys->i_buffer_tcp, i_tcp_read,
1147 p_sys->i_buffer_udp, i_udp_read );
1151 msg_Dbg( p_access, "filling buffer TCP:%d+%d",
1152 p_sys->i_buffer_tcp, i_tcp_read );
1156 if( i_tcp_read > 0 ) p_sys->i_buffer_tcp += i_tcp_read;
1157 if( i_udp_read > 0 ) p_sys->i_buffer_udp += i_udp_read;
1159 return i_tcp_read + i_udp_read;
1163 static int mms_ParseCommand( access_t *p_access,
1168 #define GET32( i_pos ) \
1169 ( p_sys->p_cmd[i_pos] + ( p_sys->p_cmd[i_pos +1] << 8 ) + \
1170 ( p_sys->p_cmd[i_pos + 2] << 16 ) + \
1171 ( p_sys->p_cmd[i_pos + 3] << 24 ) )
1173 access_sys_t *p_sys = p_access->p_sys;
1177 free( p_sys->p_cmd );
1178 p_sys->i_cmd = i_data;
1179 p_sys->p_cmd = malloc( i_data );
1180 memcpy( p_sys->p_cmd, p_data, i_data );
1182 *pi_used = i_data; /* by default */
1184 if( i_data < MMS_CMD_HEADERSIZE )
1186 msg_Warn( p_access, "truncated command (header incomplete)" );
1187 p_sys->i_command = 0;
1190 i_id = GetDWLE( p_data + 4 );
1191 i_length = GetDWLE( p_data + 8 ) + 16;
1193 if( i_id != 0xb00bface || i_length < 16 )
1196 "incorrect command header (0x%"PRIx32")", i_id );
1197 p_sys->i_command = 0;
1201 if( i_length > p_sys->i_cmd )
1204 "truncated command (missing %zu bytes)",
1205 (size_t)i_length - i_data );
1206 p_sys->i_command = 0;
1209 else if( i_length < p_sys->i_cmd )
1211 p_sys->i_cmd = i_length;
1212 *pi_used = i_length;
1216 "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",
1220 /* 12: protocol type "MMS " */
1223 /* 24: unknown (0) */
1224 /* 28: unknown (0) */
1230 p_sys->i_command = GET32( 36 ) & 0xffff;
1233 return MMS_PACKET_CMD;
1236 static int mms_ParsePacket( access_t *p_access,
1237 uint8_t *p_data, size_t i_data,
1240 access_sys_t *p_sys = p_access->p_sys;
1241 int i_packet_seq_num;
1242 size_t i_packet_length;
1243 uint32_t i_packet_id;
1245 *pi_used = i_data; /* default */
1248 msg_Warn( p_access, "truncated packet (header incomplete)" );
1252 i_packet_id = p_data[4];
1253 i_packet_seq_num = GetDWLE( p_data );
1254 i_packet_length = GetWLE( p_data + 6 );
1256 //msg_Warn( p_access, "------->i_packet_length=%d, i_data=%d", i_packet_length, i_data );
1258 if( i_packet_length > i_data || i_packet_length <= 8)
1260 /* msg_Dbg( p_access,
1261 "truncated packet (Declared %d bytes, Actual %d bytes)",
1262 i_packet_length, i_data ); */
1266 else if( i_packet_length < i_data )
1268 *pi_used = i_packet_length;
1271 if( i_packet_id == 0xff )
1274 "receive MMS UDP pair timing" );
1275 return( MMS_PACKET_UDP_TIMING );
1278 if( i_packet_id != p_sys->i_header_packet_id_type &&
1279 i_packet_id != p_sys->i_media_packet_id_type )
1281 msg_Warn( p_access, "incorrect Packet Id Type (0x%x)", i_packet_id );
1285 /* we now have a media or a header packet */
1286 if( i_packet_seq_num != p_sys->i_packet_seq_num )
1289 /* FIXME for udp could be just wrong order ? */
1291 "detected packet lost (%d != %d)",
1293 p_sys->i_packet_seq_num );
1296 p_sys->i_packet_seq_num = i_packet_seq_num + 1;
1298 if( i_packet_id == p_sys->i_header_packet_id_type )
1300 if( p_sys->p_header )
1302 p_sys->p_header = realloc( p_sys->p_header,
1303 p_sys->i_header + i_packet_length - 8 );
1304 memcpy( &p_sys->p_header[p_sys->i_header],
1305 p_data + 8, i_packet_length - 8 );
1306 p_sys->i_header += i_packet_length - 8;
1311 uint8_t* p_packet = malloc( i_packet_length - 8 ); // don't bother with preheader
1312 memcpy( p_packet, p_data + 8, i_packet_length - 8 );
1313 p_sys->p_header = p_packet;
1314 p_sys->i_header = i_packet_length - 8;
1316 /* msg_Dbg( p_access,
1317 "receive header packet (%d bytes)",
1318 i_packet_length - 8 ); */
1320 return MMS_PACKET_HEADER;
1324 uint8_t* p_packet = malloc( i_packet_length - 8 ); // don't bother with preheader
1325 memcpy( p_packet, p_data + 8, i_packet_length - 8 );
1326 FREENULL( p_sys->p_media );
1327 p_sys->p_media = p_packet;
1328 p_sys->i_media = i_packet_length - 8;
1329 p_sys->i_media_used = 0;
1330 /* msg_Dbg( p_access,
1331 "receive media packet (%d bytes)",
1332 i_packet_length - 8 ); */
1334 return MMS_PACKET_MEDIA;
1338 static int mms_ReceivePacket( access_t *p_access )
1340 access_sys_t *p_sys = p_access->p_sys;
1341 int i_packet_tcp_type;
1342 int i_packet_udp_type;
1346 bool b_refill = true;
1348 /* first if we need to refill buffer */
1349 if( p_sys->i_buffer_tcp >= MMS_CMD_HEADERSIZE )
1351 if( GetDWLE( p_sys->buffer_tcp + 4 ) == 0xb00bface )
1353 if( GetDWLE( p_sys->buffer_tcp + 8 ) + 16 <=
1354 (uint32_t)p_sys->i_buffer_tcp )
1359 else if( GetWLE( p_sys->buffer_tcp + 6 ) <= p_sys->i_buffer_tcp )
1364 if( p_sys->i_proto == MMS_PROTO_UDP && p_sys->i_buffer_udp >= 8 &&
1365 GetWLE( p_sys->buffer_udp + 6 ) <= p_sys->i_buffer_udp )
1370 if( b_refill && NetFillBuffer( p_access ) < 0 )
1372 msg_Warn( p_access, "cannot fill buffer" );
1376 i_packet_tcp_type = -1;
1377 i_packet_udp_type = -1;
1379 if( p_sys->i_buffer_tcp > 0 )
1383 if( GetDWLE( p_sys->buffer_tcp + 4 ) == 0xb00bface )
1386 mms_ParseCommand( p_access, p_sys->buffer_tcp,
1387 p_sys->i_buffer_tcp, &i_used );
1393 mms_ParsePacket( p_access, p_sys->buffer_tcp,
1394 p_sys->i_buffer_tcp, &i_used );
1396 if( i_used > 0 && i_used < MMS_BUFFER_SIZE )
1398 memmove( p_sys->buffer_tcp, p_sys->buffer_tcp + i_used,
1399 MMS_BUFFER_SIZE - i_used );
1401 p_sys->i_buffer_tcp -= i_used;
1403 else if( p_sys->i_buffer_udp > 0 )
1408 mms_ParsePacket( p_access, p_sys->buffer_udp,
1409 p_sys->i_buffer_udp, &i_used );
1411 if( i_used > 0 && i_used < MMS_BUFFER_SIZE )
1413 memmove( p_sys->buffer_udp, p_sys->buffer_udp + i_used,
1414 MMS_BUFFER_SIZE - i_used );
1416 p_sys->i_buffer_udp -= i_used;
1419 if( i_packet_tcp_type == MMS_PACKET_CMD && p_sys->i_command == 0x1b )
1421 mms_CommandSend( p_access, 0x1b, 0, 0, NULL, 0 );
1422 i_packet_tcp_type = -1;
1425 if( i_packet_tcp_type != -1 )
1427 return i_packet_tcp_type;
1429 else if( i_packet_udp_type != -1 )
1431 return i_packet_udp_type;
1436 static int mms_ReceiveCommand( access_t *p_access )
1438 access_sys_t *p_sys = p_access->p_sys;
1445 if( NetFillBuffer( p_access ) < 0 )
1447 msg_Warn( p_access, "cannot fill buffer" );
1448 return VLC_EGENERIC;
1450 if( p_sys->i_buffer_tcp > 0 )
1452 i_status = mms_ParseCommand( p_access, p_sys->buffer_tcp,
1453 p_sys->i_buffer_tcp, &i_used );
1454 if( i_used < MMS_BUFFER_SIZE )
1456 memmove( p_sys->buffer_tcp, p_sys->buffer_tcp + i_used,
1457 MMS_BUFFER_SIZE - i_used );
1459 p_sys->i_buffer_tcp -= i_used;
1463 return VLC_EGENERIC;
1466 if( p_sys->i_command == 0x1b )
1468 mms_CommandSend( p_access, 0x1b, 0, 0, NULL, 0 );
1477 return VLC_EGENERIC;
1484 #define MMS_RETRY_MAX 10
1485 #define MMS_RETRY_SLEEP 50000
1487 static int mms_CommandRead( access_t *p_access, int i_command1,
1490 access_sys_t *p_sys = p_access->p_sys;
1494 for( i_count = 0; i_count < MMS_RETRY_MAX; )
1496 i_status = mms_ReceiveCommand( p_access );
1497 if( i_status < 0 || p_sys->i_command == 0 )
1500 msleep( MMS_RETRY_SLEEP );
1502 else if( i_command1 == 0 && i_command2 == 0)
1506 else if( p_sys->i_command == i_command1 ||
1507 p_sys->i_command == i_command2 )
1513 switch( p_sys->i_command )
1516 msg_Warn( p_access, "socket closed by server" );
1517 p_access->info.b_eof = true;
1518 return VLC_EGENERIC;
1520 msg_Warn( p_access, "end of media stream" );
1521 p_access->info.b_eof = true;
1522 return VLC_EGENERIC;
1528 p_access->info.b_eof = true;
1529 msg_Warn( p_access, "failed to receive command (aborting)" );
1531 return VLC_EGENERIC;
1535 static int mms_HeaderMediaRead( access_t *p_access, int i_type )
1537 access_sys_t *p_sys = p_access->p_sys;
1540 for( i_count = 0; i_count < MMS_RETRY_MAX; )
1544 if( !vlc_object_alive (p_access) )
1547 i_status = mms_ReceivePacket( p_access );
1551 msg_Warn( p_access, "cannot receive header (%d/%d)",
1552 i_count, MMS_RETRY_MAX );
1553 msleep( MMS_RETRY_SLEEP );
1555 else if( i_status == i_type || i_type == MMS_PACKET_ANY )
1559 else if( i_status == MMS_PACKET_CMD )
1561 switch( p_sys->i_command )
1564 msg_Warn( p_access, "socket closed by server" );
1565 p_access->info.b_eof = true;
1568 msg_Warn( p_access, "end of media stream" );
1569 p_access->info.b_eof = true;
1572 /* XXX not too dificult to be done EXCEPT that we
1573 * need to restart demuxer... and I don't see how we
1574 * could do that :p */
1576 "reinitialization needed --> unsupported" );
1577 p_access->info.b_eof = true;
1585 msg_Err( p_access, "cannot receive %s (aborting)",
1586 ( i_type == MMS_PACKET_HEADER ) ? "header" : "media data" );
1587 p_access->info.b_eof = true;
1591 static void* KeepAliveThread( void *p_data )
1593 mmstu_keepalive_t *p_thread = (mmstu_keepalive_t *) p_data;
1594 access_t *p_access = p_thread->p_access;
1596 vlc_mutex_lock( &p_thread->lock );
1597 mutex_cleanup_push( &p_thread->lock );
1601 /* Do nothing until paused (if ever) */
1602 while( !p_thread->b_paused )
1603 vlc_cond_wait( &p_thread->wait, &p_thread->lock );
1609 /* Send keep-alive every ten seconds */
1610 vlc_mutex_unlock( &p_thread->lock );
1611 canc = vlc_savecancel();
1613 mms_CommandSend( p_access, 0x1b, 0, 0, NULL, 0 );
1615 vlc_restorecancel( canc );
1616 vlc_mutex_lock( &p_thread->lock );
1618 msleep( 10 * CLOCK_FREQ );
1620 while( p_thread->b_paused );