mmstu.c
资源名称:vlc-1.0.5.zip [点击查看]
上传用户:kjfoods
上传日期:2020-07-06
资源大小:29949k
文件大小:49k
源码类别:
midi
开发平台:
Unix_Linux
- /*****************************************************************************
- * mms.c: MMS access plug-in
- *****************************************************************************
- * Copyright (C) 2001, 2002 the VideoLAN team
- * $Id: 4a860fd889ddba5b01b2f0da5176c7e783c3518f $
- *
- * Authors: Laurent Aimar <fenrir@via.ecp.fr>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
- *****************************************************************************/
- /*****************************************************************************
- * Preamble
- *****************************************************************************/
- #ifdef HAVE_CONFIG_H
- # include "config.h"
- #endif
- #include <vlc_common.h>
- #include <vlc_access.h>
- #include <errno.h>
- #include <assert.h>
- #ifdef HAVE_UNISTD_H
- # include <unistd.h>
- #endif
- #ifdef HAVE_FCNTL_H
- # include <fcntl.h>
- #endif
- #ifdef HAVE_SYS_TIME_H
- # include <sys/time.h>
- #endif
- #ifdef HAVE_SYS_TYPES_H
- # include <sys/types.h>
- #endif
- #ifdef HAVE_SYS_STAT_H
- # include <sys/stat.h>
- #endif
- #ifdef HAVE_POLL
- # include <poll.h>
- #endif
- #include <vlc_network.h>
- #include "vlc_url.h"
- #include "asf.h"
- #include "buffer.h"
- #include "mms.h"
- #include "mmstu.h"
- #undef MMS_DEBUG
- /****************************************************************************
- * NOTES:
- * MMSProtocole documentation found at http://get.to/sdp
- ****************************************************************************/
- /*****************************************************************************
- * Local prototypes
- *****************************************************************************/
- int MMSTUOpen ( access_t * );
- void MMSTUClose ( access_t * );
- static block_t *Block( access_t * );
- static int Seek( access_t *, int64_t );
- static int Control( access_t *, int, va_list );
- static int MMSOpen ( access_t *, vlc_url_t *, int );
- static int MMSStart( access_t *, uint32_t );
- static int MMSStop ( access_t * );
- static void MMSClose( access_t * );
- static int mms_CommandRead( access_t *p_access, int i_command1, int i_command2 );
- static int mms_CommandSend( access_t *, int, uint32_t, uint32_t, uint8_t *, int );
- static int mms_HeaderMediaRead( access_t *, int );
- static int mms_ReceivePacket( access_t * );
- static void* KeepAliveThread( void * );
- int MMSTUOpen( access_t *p_access )
- {
- access_sys_t *p_sys;
- int i_proto;
- int i_status;
- /* Set up p_access */
- access_InitFields( p_access );
- p_access->pf_read = NULL;
- p_access->pf_block = Block;
- p_access->pf_control = Control;
- p_access->pf_seek = Seek;
- p_access->p_sys = p_sys = calloc( 1, sizeof( access_sys_t ) );
- if( !p_sys ) return VLC_ENOMEM;
- p_sys->i_timeout = var_CreateGetInteger( p_access, "mms-timeout" );
- vlc_mutex_init( &p_sys->lock_netwrite );
- /* *** Parse URL and get server addr/port and path *** */
- vlc_UrlParse( &p_sys->url, p_access->psz_path, 0 );
- if( p_sys->url.psz_host == NULL || *p_sys->url.psz_host == ' ' )
- {
- msg_Err( p_access, "invalid server name" );
- vlc_UrlClean( &p_sys->url );
- vlc_mutex_destroy( &p_sys->lock_netwrite );
- free( p_sys );
- return VLC_EGENERIC;
- }
- if( p_sys->url.i_port <= 0 )
- {
- p_sys->url.i_port = 1755;
- }
- /* *** connect to this server *** */
- /* look at requested protocol (udp/tcp) */
- i_proto = MMS_PROTO_AUTO;
- if( *p_access->psz_access )
- {
- if( !strncmp( p_access->psz_access, "mmsu", 4 ) )
- {
- i_proto = MMS_PROTO_UDP;
- }
- else if( !strncmp( p_access->psz_access, "mmst", 4 ) )
- {
- i_proto = MMS_PROTO_TCP;
- }
- }
- /* connect */
- if( i_proto == MMS_PROTO_AUTO )
- { /* first try with TCP and then UDP*/
- if( ( i_status = MMSOpen( p_access, &p_sys->url, MMS_PROTO_TCP ) ) )
- {
- if( !p_access->b_die )
- i_status = MMSOpen( p_access, &p_sys->url, MMS_PROTO_UDP );
- }
- }
- else
- {
- i_status = MMSOpen( p_access, &p_sys->url, i_proto );
- }
- if( i_status )
- {
- msg_Err( p_access, "cannot connect to server" );
- vlc_UrlClean( &p_sys->url );
- vlc_mutex_destroy( &p_sys->lock_netwrite );
- free( p_sys );
- return VLC_EGENERIC;
- }
- msg_Dbg( p_access, "connected to %s:%d", p_sys->url.psz_host, p_sys->url.i_port );
- /*
- * i_flags_broadcast
- * yy xx ?? ??
- * broadcast yy=0x02, xx= 0x00
- * pre-recorded yy=0x01, xx= 0x80 if video, 0x00 no video
- */
- if( p_sys->i_packet_count <= 0 && p_sys->asfh.i_data_packets_count > 0 )
- {
- p_sys->i_packet_count = p_sys->asfh.i_data_packets_count;
- }
- if( p_sys->i_packet_count <= 0 || ( p_sys->i_flags_broadcast >> 24 ) == 0x02 )
- {
- p_sys->b_seekable = false;
- }
- else
- {
- p_sys->b_seekable = true;
- p_access->info.i_size =
- (uint64_t)p_sys->i_header +
- (uint64_t)p_sys->i_packet_count * (uint64_t)p_sys->i_packet_length;
- }
- /* *** Start stream *** */
- if( MMSStart( p_access, 0xffffffff ) < 0 )
- {
- msg_Err( p_access, "cannot start stream" );
- MMSTUClose ( p_access );
- return VLC_EGENERIC;
- }
- /* Keep the connection alive when paused */
- p_sys->p_keepalive = malloc( sizeof( mmstu_keepalive_t ) );
- if( !p_sys->p_keepalive )
- {
- MMSTUClose ( p_access );
- return VLC_ENOMEM;
- }
- p_sys->p_keepalive->p_access = p_access;
- vlc_mutex_init( &p_sys->p_keepalive->lock );
- vlc_cond_init( &p_sys->p_keepalive->wait );
- p_sys->p_keepalive->b_paused = false;
- if( vlc_clone( &p_sys->p_keepalive->handle, KeepAliveThread,
- p_sys->p_keepalive, VLC_THREAD_PRIORITY_LOW ) )
- {
- vlc_cond_destroy( &p_sys->p_keepalive->wait );
- vlc_mutex_destroy( &p_sys->p_keepalive->lock );
- free( p_sys->p_keepalive );
- p_sys->p_keepalive = NULL;
- }
- return VLC_SUCCESS;
- }
- /*****************************************************************************
- * Close: free unused data structures
- *****************************************************************************/
- void MMSTUClose( access_t *p_access )
- {
- access_sys_t *p_sys = p_access->p_sys;
- if( p_sys->p_keepalive )
- {
- vlc_cancel( p_sys->p_keepalive->handle );
- vlc_join( p_sys->p_keepalive->handle, NULL );
- vlc_cond_destroy( &p_sys->p_keepalive->wait );
- vlc_mutex_destroy( &p_sys->p_keepalive->lock );
- free( p_sys->p_keepalive );
- }
- /* close connection with server */
- MMSClose( p_access );
- /* free memory */
- vlc_UrlClean( &p_sys->url );
- vlc_mutex_destroy( &p_sys->lock_netwrite );
- free( p_sys );
- }
- /*****************************************************************************
- * Control:
- *****************************************************************************/
- static int Control( access_t *p_access, int i_query, va_list args )
- {
- access_sys_t *p_sys = p_access->p_sys;
- bool *pb_bool;
- bool b_bool;
- int64_t *pi_64;
- int i_int;
- switch( i_query )
- {
- /* */
- case ACCESS_CAN_SEEK:
- pb_bool = (bool*)va_arg( args, bool* );
- *pb_bool = p_sys->b_seekable;
- break;
- case ACCESS_CAN_FASTSEEK:
- pb_bool = (bool*)va_arg( args, bool* );
- *pb_bool = false;
- break;
- case ACCESS_CAN_PAUSE:
- pb_bool = (bool*)va_arg( args, bool* );
- *pb_bool = true;
- break;
- case ACCESS_CAN_CONTROL_PACE:
- pb_bool = (bool*)va_arg( args, bool* );
- #if 0 /* Disable for now until we have a clock synchro algo
- * which works with something else than MPEG over UDP */
- *pb_bool = false;
- #endif
- *pb_bool = true;
- break;
- /* */
- case ACCESS_GET_PTS_DELAY:
- pi_64 = (int64_t*)va_arg( args, int64_t * );
- *pi_64 = (int64_t)var_GetInteger( p_access, "mms-caching" ) * INT64_C(1000);
- break;
- case ACCESS_GET_PRIVATE_ID_STATE:
- i_int = (int)va_arg( args, int );
- pb_bool = (bool *)va_arg( args, bool * );
- if( i_int < 0 || i_int > 127 )
- return VLC_EGENERIC;
- *pb_bool = p_sys->asfh.stream[i_int].i_selected ? true : false;
- break;
- /* */
- case ACCESS_SET_PAUSE_STATE:
- b_bool = (bool)va_arg( args, int );
- if( b_bool )
- MMSStop( p_access );
- else
- Seek( p_access, p_access->info.i_pos );
- if( p_sys->p_keepalive )
- {
- vlc_mutex_lock( &p_sys->p_keepalive->lock );
- p_sys->p_keepalive->b_paused = b_bool;
- if( b_bool )
- vlc_cond_signal( &p_sys->p_keepalive->wait );
- vlc_mutex_unlock( &p_sys->p_keepalive->lock );
- }
- break;
- case ACCESS_GET_TITLE_INFO:
- case ACCESS_SET_TITLE:
- case ACCESS_SET_SEEKPOINT:
- case ACCESS_SET_PRIVATE_ID_STATE:
- case ACCESS_GET_CONTENT_TYPE:
- return VLC_EGENERIC;
- default:
- msg_Warn( p_access, "unimplemented query in control" );
- return VLC_EGENERIC;
- }
- return VLC_SUCCESS;
- }
- /*****************************************************************************
- * Seek: try to go at the right place
- *****************************************************************************/
- static int Seek( access_t * p_access, int64_t i_pos )
- {
- access_sys_t *p_sys = p_access->p_sys;
- uint32_t i_packet;
- uint32_t i_offset;
- var_buffer_t buffer;
- if( i_pos < 0 )
- return VLC_EGENERIC;
- if( i_pos < p_sys->i_header)
- {
- if( p_access->info.i_pos < p_sys->i_header )
- {
- /* no need to restart stream, it was already one
- * or no stream was yet read */
- p_access->info.i_pos = i_pos;
- return VLC_SUCCESS;
- }
- else
- {
- i_packet = 0xffffffff;
- i_offset = 0;
- }
- }
- else
- {
- i_packet = ( i_pos - p_sys->i_header ) / p_sys->i_packet_length;
- i_offset = ( i_pos - p_sys->i_header ) % p_sys->i_packet_length;
- }
- if( p_sys->b_seekable && i_packet >= p_sys->i_packet_count )
- return VLC_EGENERIC;
- msg_Dbg( p_access, "seeking to %"PRId64 " (packet:%d)", i_pos, i_packet );
- MMSStop( p_access );
- msg_Dbg( p_access, "stream stopped (seek)" );
- /* *** restart stream *** */
- var_buffer_initwrite( &buffer, 0 );
- var_buffer_add64( &buffer, 0 ); /* seek point in second */
- var_buffer_add32( &buffer, 0xffffffff );
- var_buffer_add32( &buffer, i_packet ); // begin from start
- var_buffer_add8( &buffer, 0xff ); // stream time limit
- var_buffer_add8( &buffer, 0xff ); // on 3bytes ...
- var_buffer_add8( &buffer, 0xff ); //
- var_buffer_add8( &buffer, 0x00 ); // don't use limit
- var_buffer_add32( &buffer, p_sys->i_media_packet_id_type );
- mms_CommandSend( p_access, 0x07, p_sys->i_command_level, 0x0001ffff,
- buffer.p_data, buffer.i_data );
- var_buffer_free( &buffer );
- while( vlc_object_alive (p_access) )
- {
- if( mms_HeaderMediaRead( p_access, MMS_PACKET_CMD ) < 0 )
- {
- p_access->info.b_eof = true;
- return VLC_EGENERIC;
- }
- if( p_sys->i_command == 0x1e )
- {
- msg_Dbg( p_access, "received 0x1e (seek)" );
- break;
- }
- }
- while( vlc_object_alive (p_access) )
- {
- if( mms_HeaderMediaRead( p_access, MMS_PACKET_CMD ) < 0 )
- {
- p_access->info.b_eof = true;
- return VLC_EGENERIC;
- }
- if( p_sys->i_command == 0x05 )
- {
- msg_Dbg( p_access, "received 0x05 (seek)" );
- break;
- }
- }
- /* get a packet */
- if( mms_HeaderMediaRead( p_access, MMS_PACKET_MEDIA ) < 0 )
- {
- p_access->info.b_eof = true;
- return VLC_EGENERIC;
- }
- msg_Dbg( p_access, "Streaming restarted" );
- p_sys->i_media_used += i_offset;
- p_access->info.i_pos = i_pos;
- p_access->info.b_eof = false;
- return VLC_SUCCESS;
- }
- /*****************************************************************************
- * Block:
- *****************************************************************************/
- static block_t *Block( access_t *p_access )
- {
- access_sys_t *p_sys = p_access->p_sys;
- if( p_access->info.b_eof )
- return NULL;
- if( p_access->info.i_pos < p_sys->i_header )
- {
- const size_t i_copy = p_sys->i_header - p_access->info.i_pos;
- block_t *p_block = block_New( p_access, i_copy );
- if( !p_block )
- return NULL;
- memcpy( p_block->p_buffer, &p_sys->p_header[p_access->info.i_pos], i_copy );
- p_access->info.i_pos += i_copy;
- return p_block;
- }
- else if( p_sys->p_media && p_sys->i_media_used < __MAX( p_sys->i_media, p_sys->i_packet_length ) )
- {
- size_t i_copy = 0;
- size_t i_padding = 0;
- if( p_sys->i_media_used < p_sys->i_media )
- i_copy = p_sys->i_media - p_sys->i_media_used;
- if( __MAX( p_sys->i_media, p_sys->i_media_used ) < p_sys->i_packet_length )
- i_padding = p_sys->i_packet_length - __MAX( p_sys->i_media, p_sys->i_media_used );
- block_t *p_block = block_New( p_access, i_copy + i_padding );
- if( !p_block )
- return NULL;
- if( i_copy > 0 )
- memcpy( &p_block->p_buffer[0], &p_sys->p_media[p_sys->i_media_used], i_copy );
- if( i_padding > 0 )
- memset( &p_block->p_buffer[i_copy], 0, i_padding );
- p_sys->i_media_used += i_copy + i_padding;
- p_access->info.i_pos += i_copy + i_padding;
- return p_block;
- }
- mms_HeaderMediaRead( p_access, MMS_PACKET_MEDIA );
- return NULL;
- }
- /****************************************************************************
- * MMSOpen : Open a connection with the server over mmst or mmsu
- ****************************************************************************/
- static int MMSOpen( access_t *p_access, vlc_url_t *p_url, int i_proto )
- {
- access_sys_t *p_sys = p_access->p_sys;
- int b_udp = ( i_proto == MMS_PROTO_UDP ) ? 1 : 0;
- var_buffer_t buffer;
- char tmp[4096];
- uint16_t *p;
- int i_server_version;
- int i_tool_version;
- int i_update_player_url;
- int i_encryption_type;
- int i;
- int i_streams;
- int i_first;
- char *mediapath;
- /* *** Open a TCP connection with server *** */
- msg_Dbg( p_access, "waiting for connection..." );
- p_sys->i_handle_tcp = net_ConnectTCP( p_access, p_url->psz_host, p_url->i_port );
- if( p_sys->i_handle_tcp < 0 )
- {
- msg_Err( p_access, "failed to open a connection (tcp)" );
- return VLC_EGENERIC;
- }
- msg_Dbg( p_access,
- "connection(tcp) with "%s:%d" successful",
- p_url->psz_host,
- p_url->i_port );
- /* *** Bind port if UDP protocol is selected *** */
- if( b_udp )
- {
- if( net_GetSockAddress( p_sys->i_handle_tcp, p_sys->sz_bind_addr,
- NULL ) )
- {
- net_Close( p_sys->i_handle_tcp );
- return VLC_EGENERIC;
- }
- p_sys->i_handle_udp = net_ListenUDP1( (vlc_object_t *)p_access, p_sys->sz_bind_addr,
- 7000 );
- if( p_sys->i_handle_udp < 0 )
- {
- msg_Err( p_access, "failed to open a connection (udp)" );
- net_Close( p_sys->i_handle_tcp );
- return VLC_EGENERIC;
- }
- msg_Dbg( p_access,
- "connection(udp) at "%s:%d" successful",
- p_sys->sz_bind_addr, 7000 );
- }
- /* *** Init context for mms prototcol *** */
- GenerateGuid ( &p_sys->guid ); /* used to identify client by server */
- msg_Dbg( p_access,
- "generated guid: "GUID_FMT,
- GUID_PRINT( p_sys->guid ) );
- p_sys->i_command_level = 1; /* updated after 0x1A command */
- p_sys->i_seq_num = 0;
- p_sys->i_media_packet_id_type = 0x04;
- p_sys->i_header_packet_id_type = 0x02;
- p_sys->i_proto = i_proto;
- p_sys->i_packet_seq_num = 0;
- p_sys->p_header = NULL;
- p_sys->i_header = 0;
- p_sys->p_media = NULL;
- p_sys->i_media = 0;
- p_sys->i_media_used = 0;
- p_access->info.i_pos = 0;
- p_sys->i_buffer_tcp = 0;
- p_sys->i_buffer_udp = 0;
- p_sys->p_cmd = NULL;
- p_sys->i_cmd = 0;
- p_access->info.b_eof = false;
- /* *** send command 1 : connection request *** */
- var_buffer_initwrite( &buffer, 0 );
- var_buffer_add16( &buffer, 0x001c );
- var_buffer_add16( &buffer, 0x0003 );
- sprintf( tmp,
- "NSPlayer/7.0.0.1956; {"GUID_FMT"}; Host: %s",
- GUID_PRINT( p_sys->guid ),
- p_url->psz_host );
- var_buffer_addUTF16( &buffer, tmp );
- mms_CommandSend( p_access,
- 0x01, /* connexion request */
- 0x00000000, /* flags, FIXME */
- 0x0004000b, /* ???? */
- buffer.p_data,
- buffer.i_data );
- if( mms_CommandRead( p_access, 0x01, 0 ) < 0 )
- {
- var_buffer_free( &buffer );
- MMSClose( p_access );
- return VLC_EGENERIC;
- }
- i_server_version = GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 32 );
- i_tool_version = GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 36 );
- i_update_player_url = GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 40 );
- i_encryption_type = GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 44 );
- p = (uint16_t*)( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 48 );
- #define GETUTF16( psz, size )
- {
- int i;
- psz = malloc( size + 1);
- for( i = 0; i < size; i++ )
- {
- psz[i] = p[i];
- }
- psz[size] = ' ';
- p += ( size );
- }
- GETUTF16( p_sys->psz_server_version, i_server_version );
- GETUTF16( p_sys->psz_tool_version, i_tool_version );
- GETUTF16( p_sys->psz_update_player_url, i_update_player_url );
- GETUTF16( p_sys->psz_encryption_type, i_encryption_type );
- #undef GETUTF16
- msg_Dbg( p_access,
- "0x01 --> server_version:"%s" tool_version:"%s" update_player_url:"%s" encryption_type:"%s"",
- p_sys->psz_server_version,
- p_sys->psz_tool_version,
- p_sys->psz_update_player_url,
- p_sys->psz_encryption_type );
- /* *** should make an 18 command to make data timing *** */
- /* *** send command 2 : transport protocol selection *** */
- var_buffer_reinitwrite( &buffer, 0 );
- var_buffer_add32( &buffer, 0x00000000 );
- var_buffer_add32( &buffer, 0x000a0000 );
- var_buffer_add32( &buffer, 0x00000002 );
- if( b_udp )
- {
- sprintf( tmp,
- "\\%s\UDP\%d",
- p_sys->sz_bind_addr,
- 7000 ); // FIXME
- }
- else
- {
- sprintf( tmp, "\\192.168.0.1\TCP\1242" );
- }
- var_buffer_addUTF16( &buffer, tmp );
- var_buffer_add16( &buffer, '0' );
- mms_CommandSend( p_access,
- 0x02, /* connexion request */
- 0x00000000, /* flags, FIXME */
- 0xffffffff, /* ???? */
- buffer.p_data,
- buffer.i_data );
- /* *** response from server, should be 0x02 or 0x03 *** */
- mms_CommandRead( p_access, 0x02, 0x03 );
- if( p_sys->i_command == 0x03 )
- {
- msg_Err( p_access,
- "%s protocol selection failed", b_udp ? "UDP" : "TCP" );
- var_buffer_free( &buffer );
- MMSClose( p_access );
- return VLC_EGENERIC;
- }
- else if( p_sys->i_command != 0x02 )
- {
- msg_Warn( p_access, "received command isn't 0x02 in reponse to 0x02" );
- }
- /* *** send command 5 : media file name/path requested *** */
- var_buffer_reinitwrite( &buffer, 0 );
- var_buffer_add64( &buffer, 0 );
- /* media file path shouldn't start with / character */
- mediapath = p_url->psz_path;
- if ( *mediapath == '/' )
- {
- mediapath++;
- }
- var_buffer_addUTF16( &buffer, mediapath );
- mms_CommandSend( p_access,
- 0x05,
- p_sys->i_command_level,
- 0xffffffff,
- buffer.p_data,
- buffer.i_data );
- /* *** wait for reponse *** */
- mms_CommandRead( p_access, 0x1a, 0x06 );
- /* test if server send 0x1A answer */
- if( p_sys->i_command == 0x1A )
- {
- msg_Err( p_access, "id/password requested (not yet supported)" );
- /* FIXME */
- var_buffer_free( &buffer );
- MMSClose( p_access );
- return VLC_EGENERIC;
- }
- if( p_sys->i_command != 0x06 )
- {
- msg_Err( p_access,
- "unknown answer (0x%x instead of 0x06)",
- p_sys->i_command );
- var_buffer_free( &buffer );
- MMSClose( p_access );
- return( -1 );
- }
- /* 1 for file ok, 2 for authen ok */
- switch( GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE ) )
- {
- case 0x0001:
- msg_Dbg( p_access, "media file name/path accepted" );
- break;
- case 0x0002:
- msg_Dbg( p_access, "authentication accepted" );
- break;
- case -1:
- default:
- msg_Err( p_access, "error while asking for file %d",
- GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE ) );
- var_buffer_free( &buffer );
- MMSClose( p_access );
- return VLC_EGENERIC;
- }
- p_sys->i_flags_broadcast =
- GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 12 );
- p_sys->i_media_length =
- GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 24 );
- p_sys->i_packet_length =
- GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 44 );
- p_sys->i_packet_count =
- GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 48 );
- p_sys->i_max_bit_rate =
- GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 56 );
- p_sys->i_header_size =
- GetDWLE( p_sys->p_cmd + MMS_CMD_HEADERSIZE + 60 );
- msg_Dbg( p_access,
- "answer 0x06 flags:0x%8.8"PRIx32" media_length:%"PRIu32"s "
- "packet_length:%u packet_count:%"PRId32" max_bit_rate:%d "
- "header_size:%zu",
- p_sys->i_flags_broadcast,
- p_sys->i_media_length,
- (unsigned)p_sys->i_packet_length,
- p_sys->i_packet_count,
- p_sys->i_max_bit_rate,
- p_sys->i_header_size );
- /* *** send command 15 *** */
- var_buffer_reinitwrite( &buffer, 0 );
- var_buffer_add32( &buffer, 0 );
- var_buffer_add32( &buffer, 0x8000 );
- var_buffer_add32( &buffer, 0xffffffff );
- var_buffer_add32( &buffer, 0x00 );
- var_buffer_add32( &buffer, 0x00 );
- var_buffer_add32( &buffer, 0x00 );
- var_buffer_add64( &buffer, (((uint64_t)0x40ac2000)<<32) );
- var_buffer_add32( &buffer, p_sys->i_header_packet_id_type );
- var_buffer_add32( &buffer, 0x00 );
- mms_CommandSend( p_access, 0x15, p_sys->i_command_level, 0x00,
- buffer.p_data, buffer.i_data );
- /* *** wait for reponse *** */
- /* Commented out because it fails on some stream (no 0x11 answer) */
- #if 0
- mms_CommandRead( p_access, 0x11, 0 );
- if( p_sys->i_command != 0x11 )
- {
- msg_Err( p_access,
- "unknown answer (0x%x instead of 0x11)",
- p_sys->i_command );
- var_buffer_free( &buffer );
- MMSClose( p_access );
- return( -1 );
- }
- #endif
- /* *** now read header packet *** */
- /* XXX could be split over multiples packets */
- msg_Dbg( p_access, "reading header" );
- for( ;; )
- {
- if( mms_HeaderMediaRead( p_access, MMS_PACKET_HEADER ) < 0 )
- {
- msg_Err( p_access, "cannot receive header" );
- var_buffer_free( &buffer );
- MMSClose( p_access );
- return VLC_EGENERIC;
- }
- if( p_sys->i_header >= p_sys->i_header_size )
- {
- msg_Dbg( p_access,
- "header complete(%zu)",
- p_sys->i_header );
- break;
- }
- msg_Dbg( p_access,
- "header incomplete (%zu/%zu), reading more",
- p_sys->i_header,
- p_sys->i_header_size );
- }
- /* *** parse header and get stream and their id *** */
- /* get all streams properties,
- *
- * TODO : stream bitrates properties(optional)
- * and bitrate mutual exclusion(optional) */
- asf_HeaderParse ( &p_sys->asfh,
- p_sys->p_header, p_sys->i_header );
- asf_StreamSelect( &p_sys->asfh,
- var_CreateGetInteger( p_access, "mms-maxbitrate" ),
- var_CreateGetInteger( p_access, "mms-all" ),
- var_CreateGetInteger( p_access, "audio" ),
- var_CreateGetInteger( p_access, "video" ) );
- /* *** now select stream we want to receive *** */
- /* TODO take care of stream bitrate TODO */
- i_streams = 0;
- i_first = -1;
- var_buffer_reinitwrite( &buffer, 0 );
- /* for now, select first audio and video stream */
- for( i = 1; i < 128; i++ )
- {
- if( p_sys->asfh.stream[i].i_cat != ASF_STREAM_UNKNOWN )
- {
- i_streams++;
- if( i_first != -1 )
- {
- var_buffer_add16( &buffer, 0xffff );
- var_buffer_add16( &buffer, i );
- }
- else
- {
- i_first = i;
- }
- if( p_sys->asfh.stream[i].i_selected )
- {
- var_buffer_add16( &buffer, 0x0000 );
- msg_Info( p_access,
- "selecting stream[0x%x] %s (%d kb/s)",
- i,
- ( p_sys->asfh.stream[i].i_cat == ASF_STREAM_AUDIO ) ?
- "audio" : "video" ,
- p_sys->asfh.stream[i].i_bitrate / 1024);
- }
- else
- {
- var_buffer_add16( &buffer, 0x0002 );
- msg_Info( p_access,
- "ignoring stream[0x%x] %s (%d kb/s)",
- i,
- ( p_sys->asfh.stream[i].i_cat == ASF_STREAM_AUDIO ) ?
- "audio" : "video" ,
- p_sys->asfh.stream[i].i_bitrate / 1024);
- }
- }
- }
- if( i_streams == 0 )
- {
- msg_Err( p_access, "cannot find any stream" );
- var_buffer_free( &buffer );
- MMSClose( p_access );
- return VLC_EGENERIC;
- }
- mms_CommandSend( p_access, 0x33,
- i_streams,
- 0xffff | ( i_first << 16 ),
- buffer.p_data, buffer.i_data );
- mms_CommandRead( p_access, 0x21, 0 );
- if( p_sys->i_command != 0x21 )
- {
- msg_Err( p_access,
- "unknown answer (0x%x instead of 0x21)",
- p_sys->i_command );
- var_buffer_free( &buffer );
- MMSClose( p_access );
- return VLC_EGENERIC;
- }
- var_buffer_free( &buffer );
- msg_Info( p_access, "connection successful" );
- return VLC_SUCCESS;
- }
- /****************************************************************************
- * MMSStart : Start streaming
- ****************************************************************************/
- static int MMSStart( access_t *p_access, uint32_t i_packet )
- {
- access_sys_t *p_sys = p_access->p_sys;
- var_buffer_t buffer;
- /* *** start stream from packet 0 *** */
- var_buffer_initwrite( &buffer, 0 );
- var_buffer_add64( &buffer, 0 ); /* seek point in second */
- var_buffer_add32( &buffer, 0xffffffff );
- var_buffer_add32( &buffer, i_packet ); // begin from start
- var_buffer_add8( &buffer, 0xff ); // stream time limit
- var_buffer_add8( &buffer, 0xff ); // on 3bytes ...
- var_buffer_add8( &buffer, 0xff ); //
- var_buffer_add8( &buffer, 0x00 ); // don't use limit
- var_buffer_add32( &buffer, p_sys->i_media_packet_id_type );
- mms_CommandSend( p_access, 0x07, p_sys->i_command_level, 0x0001ffff,
- buffer.p_data, buffer.i_data );
- var_buffer_free( &buffer );
- mms_CommandRead( p_access, 0x05, 0 );
- if( p_sys->i_command != 0x05 )
- {
- msg_Err( p_access,
- "unknown answer (0x%x instead of 0x05)",
- p_sys->i_command );
- return -1;
- }
- else
- {
- /* get a packet */
- if( mms_HeaderMediaRead( p_access, MMS_PACKET_MEDIA ) < 0 )
- return -1;
- msg_Dbg( p_access, "streaming started" );
- return 0;
- }
- }
- /****************************************************************************
- * MMSStop : Stop streaming
- ****************************************************************************/
- static int MMSStop( access_t *p_access )
- {
- access_sys_t *p_sys = p_access->p_sys;
- /* *** stop stream but keep connection alive *** */
- mms_CommandSend( p_access,
- 0x09,
- p_sys->i_command_level,
- 0x001fffff,
- NULL, 0 );
- return( 0 );
- }
- /****************************************************************************
- * MMSClose : Close streaming and connection
- ****************************************************************************/
- static void MMSClose( access_t *p_access )
- {
- access_sys_t *p_sys = p_access->p_sys;
- msg_Dbg( p_access, "Connection closed" );
- /* *** tell server that we will disconnect *** */
- mms_CommandSend( p_access,
- 0x0d,
- p_sys->i_command_level,
- 0x00000001,
- NULL, 0 );
- /* *** close sockets *** */
- net_Close( p_sys->i_handle_tcp );
- if( p_sys->i_proto == MMS_PROTO_UDP )
- {
- net_Close( p_sys->i_handle_udp );
- }
- FREENULL( p_sys->p_cmd );
- FREENULL( p_sys->p_media );
- FREENULL( p_sys->p_header );
- FREENULL( p_sys->psz_server_version );
- FREENULL( p_sys->psz_tool_version );
- FREENULL( p_sys->psz_update_player_url );
- FREENULL( p_sys->psz_encryption_type );
- }
- /****************************************************************************
- *
- * MMS specific functions
- *
- ****************************************************************************/
- static int mms_CommandSend( access_t *p_access, int i_command,
- uint32_t i_prefix1, uint32_t i_prefix2,
- uint8_t *p_data, int i_data_old )
- {
- var_buffer_t buffer;
- access_sys_t *p_sys = p_access->p_sys;
- int i_data_by8, i_ret;
- int i_data = i_data_old;
- while( i_data & 0x7 ) i_data++;
- i_data_by8 = i_data >> 3;
- /* first init buffer */
- var_buffer_initwrite( &buffer, 0 );
- var_buffer_add32( &buffer, 0x00000001 ); /* start sequence */
- var_buffer_add32( &buffer, 0xB00BFACE );
- /* size after protocol type */
- var_buffer_add32( &buffer, i_data + MMS_CMD_HEADERSIZE - 16 );
- var_buffer_add32( &buffer, 0x20534d4d ); /* protocol "MMS " */
- var_buffer_add32( &buffer, i_data_by8 + 4 );
- var_buffer_add32( &buffer, p_sys->i_seq_num ); p_sys->i_seq_num++;
- var_buffer_add64( &buffer, 0 );
- var_buffer_add32( &buffer, i_data_by8 + 2 );
- var_buffer_add32( &buffer, 0x00030000 | i_command ); /* dir | command */
- var_buffer_add32( &buffer, i_prefix1 ); /* command specific */
- var_buffer_add32( &buffer, i_prefix2 ); /* command specific */
- /* specific command data */
- if( p_data && i_data > 0 )
- {
- var_buffer_addmemory( &buffer, p_data, i_data_old );
- }
- /* Append padding to the command data */
- var_buffer_add64( &buffer, 0 );
- /* send it */
- vlc_mutex_lock( &p_sys->lock_netwrite );
- i_ret = net_Write( p_access, p_sys->i_handle_tcp, NULL, buffer.p_data,
- buffer.i_data - ( 8 - ( i_data - i_data_old ) ) );
- vlc_mutex_unlock( &p_sys->lock_netwrite );
- if( i_ret != buffer.i_data - ( 8 - ( i_data - i_data_old ) ) )
- {
- var_buffer_free( &buffer );
- msg_Err( p_access, "failed to send command" );
- return VLC_EGENERIC;
- }
- var_buffer_free( &buffer );
- return VLC_SUCCESS;
- }
- static int NetFillBuffer( access_t *p_access )
- {
- #ifdef UNDER_CE
- return -1;
- #else
- access_sys_t *p_sys = p_access->p_sys;
- int i_ret;
- struct pollfd ufd[2];
- unsigned timeout, nfd;
- /* FIXME when using udp */
- ssize_t i_tcp, i_udp;
- ssize_t i_tcp_read, i_udp_read;
- int i_try = 0;
- i_tcp = MMS_BUFFER_SIZE/2 - p_sys->i_buffer_tcp;
- if( p_sys->i_proto == MMS_PROTO_UDP )
- {
- i_udp = MMS_BUFFER_SIZE/2 - p_sys->i_buffer_udp;
- }
- else
- {
- i_udp = 0; /* there isn't udp socket */
- }
- if( ( i_udp <= 0 ) && ( i_tcp <= 0 ) )
- {
- msg_Warn( p_access, "nothing to read %d:%d", (int)i_tcp, (int)i_udp );
- return 0;
- }
- else
- {
- /* msg_Warn( p_access, "ask for tcp:%d udp:%d", i_tcp, i_udp ); */
- }
- /* Find if some data is available */
- do
- {
- i_try++;
- /* Initialize file descriptor set */
- memset (ufd, 0, sizeof (ufd));
- nfd = 0;
- if( i_tcp > 0 )
- {
- ufd[nfd].fd = p_sys->i_handle_tcp;
- ufd[nfd].events = POLLIN;
- nfd++;
- }
- if( i_udp > 0 )
- {
- ufd[nfd].fd = p_sys->i_handle_udp;
- ufd[nfd].events = POLLIN;
- nfd++;
- }
- /* We'll wait 0.5 second if nothing happens */
- timeout = __MIN( 500, p_sys->i_timeout );
- if( i_try * timeout > p_sys->i_timeout )
- {
- msg_Err(p_access, "no data received");
- return -1;
- }
- if( i_try > 3 && (p_sys->i_buffer_tcp > 0 || p_sys->i_buffer_udp > 0) )
- {
- return -1;
- }
- if( !vlc_object_alive (p_access) || p_access->b_error )
- return -1;
- //msg_Dbg( p_access, "NetFillBuffer: trying again (select)" );
- } while( !(i_ret = poll( ufd, nfd, timeout)) ||
- (i_ret < 0 && errno == EINTR) );
- if( i_ret < 0 )
- {
- msg_Err( p_access, "network poll error (%m)" );
- return -1;
- }
- i_tcp_read = i_udp_read = 0;
- if( ( i_tcp > 0 ) && ufd[0].revents )
- {
- i_tcp_read =
- recv( p_sys->i_handle_tcp,
- p_sys->buffer_tcp + p_sys->i_buffer_tcp,
- i_tcp + MMS_BUFFER_SIZE/2, 0 );
- }
- if( i_udp > 0 && ufd[i_tcp > 0].revents )
- {
- i_udp_read = recv( p_sys->i_handle_udp,
- p_sys->buffer_udp + p_sys->i_buffer_udp,
- i_udp + MMS_BUFFER_SIZE/2, 0 );
- }
- #ifdef MMS_DEBUG
- if( p_sys->i_proto == MMS_PROTO_UDP )
- {
- msg_Dbg( p_access, "filling buffer TCP:%d+%d UDP:%d+%d",
- p_sys->i_buffer_tcp, i_tcp_read,
- p_sys->i_buffer_udp, i_udp_read );
- }
- else
- {
- msg_Dbg( p_access, "filling buffer TCP:%d+%d",
- p_sys->i_buffer_tcp, i_tcp_read );
- }
- #endif
- if( i_tcp_read > 0 ) p_sys->i_buffer_tcp += i_tcp_read;
- if( i_udp_read > 0 ) p_sys->i_buffer_udp += i_udp_read;
- return i_tcp_read + i_udp_read;
- #endif
- }
- static int mms_ParseCommand( access_t *p_access,
- uint8_t *p_data,
- size_t i_data,
- int *pi_used )
- {
- #define GET32( i_pos )
- ( p_sys->p_cmd[i_pos] + ( p_sys->p_cmd[i_pos +1] << 8 ) +
- ( p_sys->p_cmd[i_pos + 2] << 16 ) +
- ( p_sys->p_cmd[i_pos + 3] << 24 ) )
- access_sys_t *p_sys = p_access->p_sys;
- uint32_t i_length;
- uint32_t i_id;
- free( p_sys->p_cmd );
- p_sys->i_cmd = i_data;
- p_sys->p_cmd = malloc( i_data );
- memcpy( p_sys->p_cmd, p_data, i_data );
- *pi_used = i_data; /* by default */
- if( i_data < MMS_CMD_HEADERSIZE )
- {
- msg_Warn( p_access, "truncated command (header incomplete)" );
- p_sys->i_command = 0;
- return -1;
- }
- i_id = GetDWLE( p_data + 4 );
- i_length = GetDWLE( p_data + 8 ) + 16;
- if( i_id != 0xb00bface || i_length < 16 )
- {
- msg_Err( p_access,
- "incorrect command header (0x%"PRIx32")", i_id );
- p_sys->i_command = 0;
- return -1;
- }
- if( i_length > p_sys->i_cmd )
- {
- msg_Warn( p_access,
- "truncated command (missing %zu bytes)",
- (size_t)i_length - i_data );
- p_sys->i_command = 0;
- return -1;
- }
- else if( i_length < p_sys->i_cmd )
- {
- p_sys->i_cmd = i_length;
- *pi_used = i_length;
- }
- msg_Dbg( p_access,
- "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",
- GET32( 0 ),
- GET32( 4 ),
- GET32( 8 ),
- /* 12: protocol type "MMS " */
- GET32( 16 ),
- GET32( 20 ),
- /* 24: unknown (0) */
- /* 28: unknown (0) */
- GET32( 32 ),
- GET32( 36 )
- /* 40: switches */
- /* 44: extra */ );
- p_sys->i_command = GET32( 36 ) & 0xffff;
- #undef GET32
- return MMS_PACKET_CMD;
- }
- static int mms_ParsePacket( access_t *p_access,
- uint8_t *p_data, size_t i_data,
- int *pi_used )
- {
- access_sys_t *p_sys = p_access->p_sys;
- int i_packet_seq_num;
- size_t i_packet_length;
- uint32_t i_packet_id;
- *pi_used = i_data; /* default */
- if( i_data <= 8 )
- {
- msg_Warn( p_access, "truncated packet (header incomplete)" );
- return -1;
- }
- i_packet_id = p_data[4];
- i_packet_seq_num = GetDWLE( p_data );
- i_packet_length = GetWLE( p_data + 6 );
- //msg_Warn( p_access, "------->i_packet_length=%d, i_data=%d", i_packet_length, i_data );
- if( i_packet_length > i_data || i_packet_length <= 8)
- {
- /* msg_Dbg( p_access,
- "truncated packet (Declared %d bytes, Actual %d bytes)",
- i_packet_length, i_data ); */
- *pi_used = 0;
- return -1;
- }
- else if( i_packet_length < i_data )
- {
- *pi_used = i_packet_length;
- }
- if( i_packet_id == 0xff )
- {
- msg_Warn( p_access,
- "receive MMS UDP pair timing" );
- return( MMS_PACKET_UDP_TIMING );
- }
- if( i_packet_id != p_sys->i_header_packet_id_type &&
- i_packet_id != p_sys->i_media_packet_id_type )
- {
- msg_Warn( p_access, "incorrect Packet Id Type (0x%x)", i_packet_id );
- return -1;
- }
- /* we now have a media or a header packet */
- if( i_packet_seq_num != p_sys->i_packet_seq_num )
- {
- #if 0
- /* FIXME for udp could be just wrong order ? */
- msg_Warn( p_access,
- "detected packet lost (%d != %d)",
- i_packet_seq_num,
- p_sys->i_packet_seq_num );
- #endif
- }
- p_sys->i_packet_seq_num = i_packet_seq_num + 1;
- if( i_packet_id == p_sys->i_header_packet_id_type )
- {
- if( p_sys->p_header )
- {
- p_sys->p_header = realloc( p_sys->p_header,
- p_sys->i_header + i_packet_length - 8 );
- memcpy( &p_sys->p_header[p_sys->i_header],
- p_data + 8, i_packet_length - 8 );
- p_sys->i_header += i_packet_length - 8;
- }
- else
- {
- uint8_t* p_packet = malloc( i_packet_length - 8 ); // don't bother with preheader
- memcpy( p_packet, p_data + 8, i_packet_length - 8 );
- p_sys->p_header = p_packet;
- p_sys->i_header = i_packet_length - 8;
- }
- /* msg_Dbg( p_access,
- "receive header packet (%d bytes)",
- i_packet_length - 8 ); */
- return MMS_PACKET_HEADER;
- }
- else
- {
- uint8_t* p_packet = malloc( i_packet_length - 8 ); // don't bother with preheader
- memcpy( p_packet, p_data + 8, i_packet_length - 8 );
- FREENULL( p_sys->p_media );
- p_sys->p_media = p_packet;
- p_sys->i_media = i_packet_length - 8;
- p_sys->i_media_used = 0;
- /* msg_Dbg( p_access,
- "receive media packet (%d bytes)",
- i_packet_length - 8 ); */
- return MMS_PACKET_MEDIA;
- }
- }
- static int mms_ReceivePacket( access_t *p_access )
- {
- access_sys_t *p_sys = p_access->p_sys;
- int i_packet_tcp_type;
- int i_packet_udp_type;
- for( ;; )
- {
- bool b_refill = true;
- /* first if we need to refill buffer */
- if( p_sys->i_buffer_tcp >= MMS_CMD_HEADERSIZE )
- {
- if( GetDWLE( p_sys->buffer_tcp + 4 ) == 0xb00bface )
- {
- if( GetDWLE( p_sys->buffer_tcp + 8 ) + 16 <=
- (uint32_t)p_sys->i_buffer_tcp )
- {
- b_refill = false;
- }
- }
- else if( GetWLE( p_sys->buffer_tcp + 6 ) <= p_sys->i_buffer_tcp )
- {
- b_refill = false;
- }
- }
- if( p_sys->i_proto == MMS_PROTO_UDP && p_sys->i_buffer_udp >= 8 &&
- GetWLE( p_sys->buffer_udp + 6 ) <= p_sys->i_buffer_udp )
- {
- b_refill = false;
- }
- if( b_refill && NetFillBuffer( p_access ) < 0 )
- {
- msg_Warn( p_access, "cannot fill buffer" );
- return -1;
- }
- i_packet_tcp_type = -1;
- i_packet_udp_type = -1;
- if( p_sys->i_buffer_tcp > 0 )
- {
- int i_used;
- if( GetDWLE( p_sys->buffer_tcp + 4 ) == 0xb00bface )
- {
- i_packet_tcp_type =
- mms_ParseCommand( p_access, p_sys->buffer_tcp,
- p_sys->i_buffer_tcp, &i_used );
- }
- else
- {
- i_packet_tcp_type =
- mms_ParsePacket( p_access, p_sys->buffer_tcp,
- p_sys->i_buffer_tcp, &i_used );
- }
- if( i_used > 0 && i_used < MMS_BUFFER_SIZE )
- {
- memmove( p_sys->buffer_tcp, p_sys->buffer_tcp + i_used,
- MMS_BUFFER_SIZE - i_used );
- }
- p_sys->i_buffer_tcp -= i_used;
- }
- else if( p_sys->i_buffer_udp > 0 )
- {
- int i_used;
- i_packet_udp_type =
- mms_ParsePacket( p_access, p_sys->buffer_udp,
- p_sys->i_buffer_udp, &i_used );
- if( i_used > 0 && i_used < MMS_BUFFER_SIZE )
- {
- memmove( p_sys->buffer_udp, p_sys->buffer_udp + i_used,
- MMS_BUFFER_SIZE - i_used );
- }
- p_sys->i_buffer_udp -= i_used;
- }
- if( i_packet_tcp_type == MMS_PACKET_CMD && p_sys->i_command == 0x1b )
- {
- mms_CommandSend( p_access, 0x1b, 0, 0, NULL, 0 );
- i_packet_tcp_type = -1;
- }
- if( i_packet_tcp_type != -1 )
- {
- return i_packet_tcp_type;
- }
- else if( i_packet_udp_type != -1 )
- {
- return i_packet_udp_type;
- }
- }
- }
- static int mms_ReceiveCommand( access_t *p_access )
- {
- access_sys_t *p_sys = p_access->p_sys;
- for( ;; )
- {
- int i_used;
- int i_status;
- if( NetFillBuffer( p_access ) < 0 )
- {
- msg_Warn( p_access, "cannot fill buffer" );
- return VLC_EGENERIC;
- }
- if( p_sys->i_buffer_tcp > 0 )
- {
- i_status = mms_ParseCommand( p_access, p_sys->buffer_tcp,
- p_sys->i_buffer_tcp, &i_used );
- if( i_used < MMS_BUFFER_SIZE )
- {
- memmove( p_sys->buffer_tcp, p_sys->buffer_tcp + i_used,
- MMS_BUFFER_SIZE - i_used );
- }
- p_sys->i_buffer_tcp -= i_used;
- if( i_status < 0 )
- {
- return VLC_EGENERIC;
- }
- if( p_sys->i_command == 0x1b )
- {
- mms_CommandSend( p_access, 0x1b, 0, 0, NULL, 0 );
- }
- else
- {
- break;
- }
- }
- else
- {
- return VLC_EGENERIC;
- }
- }
- return VLC_SUCCESS;
- }
- #define MMS_RETRY_MAX 10
- #define MMS_RETRY_SLEEP 50000
- static int mms_CommandRead( access_t *p_access, int i_command1,
- int i_command2 )
- {
- access_sys_t *p_sys = p_access->p_sys;
- int i_count;
- int i_status;
- for( i_count = 0; i_count < MMS_RETRY_MAX; )
- {
- i_status = mms_ReceiveCommand( p_access );
- if( i_status < 0 || p_sys->i_command == 0 )
- {
- i_count++;
- msleep( MMS_RETRY_SLEEP );
- }
- else if( i_command1 == 0 && i_command2 == 0)
- {
- return VLC_SUCCESS;
- }
- else if( p_sys->i_command == i_command1 ||
- p_sys->i_command == i_command2 )
- {
- return VLC_SUCCESS;
- }
- else
- {
- switch( p_sys->i_command )
- {
- case 0x03:
- msg_Warn( p_access, "socket closed by server" );
- p_access->info.b_eof = true;
- return VLC_EGENERIC;
- case 0x1e:
- msg_Warn( p_access, "end of media stream" );
- p_access->info.b_eof = true;
- return VLC_EGENERIC;
- default:
- break;
- }
- }
- }
- p_access->info.b_eof = true;
- msg_Warn( p_access, "failed to receive command (aborting)" );
- return VLC_EGENERIC;
- }
- static int mms_HeaderMediaRead( access_t *p_access, int i_type )
- {
- access_sys_t *p_sys = p_access->p_sys;
- int i_count;
- for( i_count = 0; i_count < MMS_RETRY_MAX; )
- {
- int i_status;
- if( !vlc_object_alive (p_access) )
- return -1;
- i_status = mms_ReceivePacket( p_access );
- if( i_status < 0 )
- {
- i_count++;
- msg_Warn( p_access, "cannot receive header (%d/%d)",
- i_count, MMS_RETRY_MAX );
- msleep( MMS_RETRY_SLEEP );
- }
- else if( i_status == i_type || i_type == MMS_PACKET_ANY )
- {
- return i_type;
- }
- else if( i_status == MMS_PACKET_CMD )
- {
- switch( p_sys->i_command )
- {
- case 0x03:
- msg_Warn( p_access, "socket closed by server" );
- p_access->info.b_eof = true;
- return -1;
- case 0x1e:
- msg_Warn( p_access, "end of media stream" );
- p_access->info.b_eof = true;
- return -1;
- case 0x20:
- /* XXX not too dificult to be done EXCEPT that we
- * need to restart demuxer... and I don't see how we
- * could do that :p */
- msg_Err( p_access,
- "reinitialization needed --> unsupported" );
- p_access->info.b_eof = true;
- return -1;
- default:
- break;
- }
- }
- }
- msg_Err( p_access, "cannot receive %s (aborting)",
- ( i_type == MMS_PACKET_HEADER ) ? "header" : "media data" );
- p_access->info.b_eof = true;
- return -1;
- }
- static void* KeepAliveThread( void *p_data )
- {
- mmstu_keepalive_t *p_thread = (mmstu_keepalive_t *) p_data;
- access_t *p_access = p_thread->p_access;
- vlc_mutex_lock( &p_thread->lock );
- mutex_cleanup_push( &p_thread->lock );
- for( ;; )
- {
- /* Do nothing until paused (if ever) */
- while( !p_thread->b_paused )
- vlc_cond_wait( &p_thread->wait, &p_thread->lock );
- do
- {
- int canc;
- /* Send keep-alive every ten seconds */
- vlc_mutex_unlock( &p_thread->lock );
- canc = vlc_savecancel();
- mms_CommandSend( p_access, 0x1b, 0, 0, NULL, 0 );
- vlc_restorecancel( canc );
- vlc_mutex_lock( &p_thread->lock );
- msleep( 10 * CLOCK_FREQ );
- }
- while( p_thread->b_paused );
- }
- vlc_cleanup_pop();
- assert(0);
- }