mmsh.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:29k
源码类别:
midi
开发平台:
Unix_Linux
- /*****************************************************************************
- * mmsh.c:
- *****************************************************************************
- * Copyright (C) 2001, 2002 the VideoLAN team
- * $Id: c0117339b77290a08ae5bfb2b3784e49dd67b6a4 $
- *
- * 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 "vlc_strings.h"
- #include "vlc_input.h"
- #include <vlc_network.h>
- #include "vlc_url.h"
- #include "asf.h"
- #include "buffer.h"
- #include "mms.h"
- #include "mmsh.h"
- /* TODO:
- * - authentication
- */
- /*****************************************************************************
- * Local prototypes
- *****************************************************************************/
- int MMSHOpen ( access_t * );
- void MMSHClose ( access_t * );
- static block_t *Block( access_t *p_access );
- static ssize_t ReadRedirect( access_t *, uint8_t *, size_t );
- static int Seek( access_t *, int64_t );
- static int Control( access_t *, int, va_list );
- static int Describe( access_t *, char **ppsz_location );
- static int Start( access_t *, int64_t );
- static void Stop( access_t * );
- static int GetPacket( access_t *, chunk_t * );
- static void GetHeader( access_t *p_access );
- static int Restart( access_t * );
- static int Reset( access_t * );
- //#define MMSH_USER_AGENT "NSPlayer/4.1.0.3856"
- #define MMSH_USER_AGENT "NSPlayer/7.10.0.3059"
- /****************************************************************************
- * Open: connect to ftp server and ask for file
- ****************************************************************************/
- int MMSHOpen( access_t *p_access )
- {
- access_sys_t *p_sys;
- char *psz_location = NULL;
- char *psz_proxy;
- STANDARD_BLOCK_ACCESS_INIT
- p_sys->i_proto= MMS_PROTO_HTTP;
- p_sys->fd = -1;
- /* Handle proxy */
- p_sys->b_proxy = false;
- memset( &p_sys->proxy, 0, sizeof(p_sys->proxy) );
- /* Check proxy */
- /* TODO reuse instead http-proxy from http access ? */
- psz_proxy = var_CreateGetString( p_access, "mmsh-proxy" );
- if( !*psz_proxy )
- {
- char *psz_http_proxy = config_GetPsz( p_access, "http-proxy" );
- if( psz_http_proxy && *psz_http_proxy )
- {
- free( psz_proxy );
- psz_proxy = psz_http_proxy;
- var_SetString( p_access, "mmsh-proxy", psz_proxy );
- }
- else
- {
- free( psz_http_proxy );
- }
- }
- if( *psz_proxy )
- {
- p_sys->b_proxy = true;
- vlc_UrlParse( &p_sys->proxy, psz_proxy, 0 );
- }
- #ifdef HAVE_GETENV
- else
- {
- char *psz_proxy = getenv( "http_proxy" );
- if( psz_proxy && *psz_proxy )
- {
- p_sys->b_proxy = true;
- vlc_UrlParse( &p_sys->proxy, psz_proxy, 0 );
- }
- }
- #endif
- free( psz_proxy );
- if( p_sys->b_proxy )
- {
- if( ( p_sys->proxy.psz_host == NULL ) ||
- ( *p_sys->proxy.psz_host == ' ' ) )
- {
- msg_Warn( p_access, "invalid proxy host" );
- vlc_UrlClean( &p_sys->proxy );
- free( p_sys );
- return VLC_EGENERIC;
- }
- if( p_sys->proxy.i_port <= 0 )
- p_sys->proxy.i_port = 80;
- msg_Dbg( p_access, "Using http proxy %s:%d",
- p_sys->proxy.psz_host, p_sys->proxy.i_port );
- }
- /* open a tcp connection */
- 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 host" );
- vlc_UrlClean( &p_sys->proxy );
- vlc_UrlClean( &p_sys->url );
- free( p_sys );
- return VLC_EGENERIC;
- }
- if( p_sys->url.i_port <= 0 )
- p_sys->url.i_port = 80;
- if( Describe( p_access, &psz_location ) )
- {
- vlc_UrlClean( &p_sys->proxy );
- vlc_UrlClean( &p_sys->url );
- free( p_sys );
- return VLC_EGENERIC;
- }
- /* Handle redirection */
- if( psz_location && *psz_location )
- {
- msg_Dbg( p_access, "redirection to %s", psz_location );
- input_thread_t * p_input = vlc_object_find( p_access, VLC_OBJECT_INPUT, FIND_PARENT );
- input_item_t * p_new_loc;
- if( !p_input )
- {
- vlc_UrlClean( &p_sys->proxy );
- vlc_UrlClean( &p_sys->url );
- free( p_sys );
- free( psz_location );
- return VLC_EGENERIC;
- }
- /** bug we do not autodelete here */
- p_new_loc = input_item_New( p_access, psz_location, psz_location );
- input_item_AddSubItem( input_GetItem( p_input ), p_new_loc );
- vlc_gc_decref( p_new_loc );
- vlc_object_release( p_input );
- free( psz_location );
- p_access->pf_block = NULL;
- p_access->pf_read = ReadRedirect;
- return VLC_SUCCESS;
- }
- free( psz_location );
- /* Start playing */
- if( Start( p_access, 0 ) )
- {
- msg_Err( p_access, "cannot start stream" );
- free( p_sys->p_header );
- vlc_UrlClean( &p_sys->proxy );
- vlc_UrlClean( &p_sys->url );
- free( p_sys );
- return VLC_EGENERIC;
- }
- if( !p_sys->b_broadcast )
- {
- p_access->info.i_size = p_sys->asfh.i_file_size;
- }
- return VLC_SUCCESS;
- }
- /*****************************************************************************
- * Close: free unused data structures
- *****************************************************************************/
- void MMSHClose ( access_t *p_access )
- {
- access_sys_t *p_sys = p_access->p_sys;
- Stop( p_access );
- free( p_sys->p_header );
- vlc_UrlClean( &p_sys->proxy );
- vlc_UrlClean( &p_sys->url );
- 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_broadcast;
- break;
- case ACCESS_CAN_FASTSEEK:
- pb_bool = (bool*)va_arg( args, bool* );
- *pb_bool = false;
- break;
- case ACCESS_CAN_PAUSE:
- case ACCESS_CAN_CONTROL_PACE:
- pb_bool = (bool*)va_arg( args, bool* );
- *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 )
- Stop( p_access );
- else
- Seek( p_access, p_access->info.i_pos );
- 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;
- chunk_t ck;
- off_t i_offset;
- off_t i_packet;
- msg_Dbg( p_access, "seeking to %"PRId64, i_pos );
- i_packet = ( i_pos - p_sys->i_header ) / p_sys->asfh.i_min_data_packet_size;
- i_offset = ( i_pos - p_sys->i_header ) % p_sys->asfh.i_min_data_packet_size;
- Stop( p_access );
- Start( p_access, i_packet * p_sys->asfh.i_min_data_packet_size );
- while( vlc_object_alive (p_access) )
- {
- if( GetPacket( p_access, &ck ) )
- break;
- /* skip headers */
- if( ck.i_type != 0x4824 )
- break;
- msg_Warn( p_access, "skipping header" );
- }
- p_access->info.i_pos = i_pos;
- p_access->info.b_eof = false;
- p_sys->i_packet_used += i_offset;
- return VLC_SUCCESS;
- }
- /*****************************************************************************
- * ReadRedirect:
- *****************************************************************************/
- static ssize_t ReadRedirect( access_t *p_access, uint8_t *p, size_t i_len )
- {
- VLC_UNUSED(p_access); VLC_UNUSED(p); VLC_UNUSED(i_len);
- return 0;
- }
- /*****************************************************************************
- * Block:
- *****************************************************************************/
- static block_t *Block( access_t *p_access )
- {
- access_sys_t *p_sys = p_access->p_sys;
- const unsigned i_packet_min = p_sys->asfh.i_min_data_packet_size;
- if( p_access->info.i_pos < p_sys->i_start + p_sys->i_header )
- {
- const size_t i_offset = p_access->info.i_pos - p_sys->i_start;
- const size_t i_copy = p_sys->i_header - i_offset;
- block_t *p_block = block_New( p_access, i_copy );
- if( !p_block )
- return NULL;
- memcpy( p_block->p_buffer, &p_sys->p_header[i_offset], i_copy );
- p_access->info.i_pos += i_copy;
- return p_block;
- }
- else if( p_sys->i_packet_length > 0 &&
- p_sys->i_packet_used < __MAX( p_sys->i_packet_length, i_packet_min ) )
- {
- size_t i_copy = 0;
- size_t i_padding = 0;
- if( p_sys->i_packet_used < p_sys->i_packet_length )
- i_copy = p_sys->i_packet_length - p_sys->i_packet_used;
- if( __MAX( p_sys->i_packet_used, p_sys->i_packet_length ) < i_packet_min )
- i_padding = i_packet_min - __MAX( p_sys->i_packet_used, p_sys->i_packet_length );
- 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_packet[p_sys->i_packet_used], i_copy );
- if( i_padding > 0 )
- memset( &p_block->p_buffer[i_copy], 0, i_padding );
- p_sys->i_packet_used += i_copy + i_padding;
- p_access->info.i_pos += i_copy + i_padding;
- return p_block;
- }
- chunk_t ck;
- if( GetPacket( p_access, &ck ) )
- {
- int i_ret = -1;
- if( p_sys->b_broadcast )
- {
- if( (ck.i_type == 0x4524) && (ck.i_sequence != 0) )
- i_ret = Restart( p_access );
- else if( ck.i_type == 0x4324 )
- i_ret = Reset( p_access );
- }
- if( i_ret )
- {
- p_access->info.b_eof = true;
- return 0;
- }
- }
- if( ck.i_type != 0x4424 )
- {
- p_sys->i_packet_used = 0;
- p_sys->i_packet_length = 0;
- }
- return NULL;
- }
- /* */
- static int Restart( access_t *p_access )
- {
- access_sys_t *p_sys = p_access->p_sys;
- char *psz_location = NULL;
- msg_Dbg( p_access, "Restart the stream" );
- p_sys->i_start = p_access->info.i_pos;
- /* */
- msg_Dbg( p_access, "stoping the stream" );
- Stop( p_access );
- /* */
- msg_Dbg( p_access, "describe the stream" );
- if( Describe( p_access, &psz_location ) )
- {
- msg_Err( p_access, "describe failed" );
- return VLC_EGENERIC;
- }
- /* */
- if( Start( p_access, 0 ) )
- {
- msg_Err( p_access, "Start failed" );
- return VLC_EGENERIC;
- }
- return VLC_SUCCESS;
- }
- static int Reset( access_t *p_access )
- {
- access_sys_t *p_sys = p_access->p_sys;
- asf_header_t old_asfh = p_sys->asfh;
- int i;
- msg_Dbg( p_access, "Reset the stream" );
- p_sys->i_start = p_access->info.i_pos;
- /* */
- p_sys->i_packet_sequence = 0;
- p_sys->i_packet_used = 0;
- p_sys->i_packet_length = 0;
- p_sys->p_packet = NULL;
- /* Get the next header FIXME memory loss ? */
- GetHeader( p_access );
- if( p_sys->i_header <= 0 )
- return VLC_EGENERIC;
- asf_HeaderParse ( &p_sys->asfh,
- p_sys->p_header, p_sys->i_header );
- msg_Dbg( p_access, "packet count=%"PRId64" packet size=%d",
- p_sys->asfh.i_data_packets_count,
- p_sys->asfh.i_min_data_packet_size );
- 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" ) );
- /* Check we have comptible asfh */
- for( i = 1; i < 128; i++ )
- {
- asf_stream_t *p_old = &old_asfh.stream[i];
- asf_stream_t *p_new = &p_sys->asfh.stream[i];
- if( p_old->i_cat != p_new->i_cat || p_old->i_selected != p_new->i_selected )
- break;
- }
- if( i < 128 )
- {
- msg_Warn( p_access, "incompatible asf header, restart" );
- return Restart( p_access );
- }
- /* */
- p_sys->i_packet_used = 0;
- p_sys->i_packet_length = 0;
- return VLC_SUCCESS;
- }
- static int OpenConnection( access_t *p_access )
- {
- access_sys_t *p_sys = p_access->p_sys;
- vlc_url_t srv = p_sys->b_proxy ? p_sys->proxy : p_sys->url;
- if( ( p_sys->fd = net_ConnectTCP( p_access,
- srv.psz_host, srv.i_port ) ) < 0 )
- {
- msg_Err( p_access, "cannot connect to %s:%d",
- srv.psz_host, srv.i_port );
- return VLC_EGENERIC;
- }
- if( p_sys->b_proxy )
- {
- net_Printf( VLC_OBJECT(p_access), p_sys->fd, NULL,
- "GET http://%s:%d%s HTTP/1.0rn",
- p_sys->url.psz_host, p_sys->url.i_port,
- ( (p_sys->url.psz_path == NULL) ||
- (*p_sys->url.psz_path == ' ') ) ?
- "/" : p_sys->url.psz_path );
- /* Proxy Authentication */
- if( p_sys->proxy.psz_username && *p_sys->proxy.psz_username )
- {
- char *buf;
- char *b64;
- if( asprintf( &buf, "%s:%s", p_sys->proxy.psz_username,
- p_sys->proxy.psz_password ? p_sys->proxy.psz_password : "" ) == -1 )
- return VLC_ENOMEM;
- b64 = vlc_b64_encode( buf );
- free( buf );
- net_Printf( VLC_OBJECT(p_access), p_sys->fd, NULL,
- "Proxy-Authorization: Basic %srn", b64 );
- free( b64 );
- }
- }
- else
- {
- net_Printf( VLC_OBJECT(p_access), p_sys->fd, NULL,
- "GET %s HTTP/1.0rn"
- "Host: %s:%drn",
- ( (p_sys->url.psz_path == NULL) ||
- (*p_sys->url.psz_path == ' ') ) ?
- "/" : p_sys->url.psz_path,
- p_sys->url.psz_host, p_sys->url.i_port );
- }
- return VLC_SUCCESS;
- }
- /*****************************************************************************
- * Describe:
- *****************************************************************************/
- static int Describe( access_t *p_access, char **ppsz_location )
- {
- access_sys_t *p_sys = p_access->p_sys;
- char *psz_location = NULL;
- char *psz;
- int i_code;
- /* Reinit context */
- p_sys->b_broadcast = true;
- p_sys->i_request_context = 1;
- p_sys->i_packet_sequence = 0;
- p_sys->i_packet_used = 0;
- p_sys->i_packet_length = 0;
- p_sys->p_packet = NULL;
- GenerateGuid ( &p_sys->guid );
- if( OpenConnection( p_access ) )
- return VLC_EGENERIC;
- net_Printf( VLC_OBJECT(p_access), p_sys->fd, NULL,
- "Accept: */*rn"
- "User-Agent: "MMSH_USER_AGENT"rn"
- "Pragma: no-cache,rate=1.000000,stream-time=0,stream-offset=0:0,request-context=%d,max-duration=0rn"
- "Pragma: xClientGUID={"GUID_FMT"}rn"
- "Connection: Closern",
- p_sys->i_request_context++,
- GUID_PRINT( p_sys->guid ) );
- if( net_Printf( VLC_OBJECT(p_access), p_sys->fd, NULL, "rn" ) < 0 )
- {
- msg_Err( p_access, "failed to send request" );
- goto error;
- }
- /* Receive the http header */
- if( ( psz = net_Gets( VLC_OBJECT(p_access), p_sys->fd, NULL ) ) == NULL )
- {
- msg_Err( p_access, "failed to read answer" );
- goto error;
- }
- if( strncmp( psz, "HTTP/1.", 7 ) )
- {
- msg_Err( p_access, "invalid HTTP reply '%s'", psz );
- free( psz );
- goto error;
- }
- i_code = atoi( &psz[9] );
- if( i_code >= 400 )
- {
- msg_Err( p_access, "error: %s", psz );
- free( psz );
- goto error;
- }
- msg_Dbg( p_access, "HTTP reply '%s'", psz );
- free( psz );
- for( ;; )
- {
- char *psz = net_Gets( p_access, p_sys->fd, NULL );
- char *p;
- if( psz == NULL )
- {
- msg_Err( p_access, "failed to read answer" );
- goto error;
- }
- if( *psz == ' ' )
- {
- free( psz );
- break;
- }
- if( ( p = strchr( psz, ':' ) ) == NULL )
- {
- msg_Err( p_access, "malformed header line: %s", psz );
- free( psz );
- goto error;
- }
- *p++ = ' ';
- while( *p == ' ' ) p++;
- /* FIXME FIXME test Content-Type to see if it's a plain stream or an
- * asx FIXME */
- if( !strcasecmp( psz, "Pragma" ) )
- {
- if( strstr( p, "features" ) )
- {
- /* FIXME, it is a bit badly done here ..... */
- if( strstr( p, "broadcast" ) )
- {
- msg_Dbg( p_access, "stream type = broadcast" );
- p_sys->b_broadcast = true;
- }
- else if( strstr( p, "seekable" ) )
- {
- msg_Dbg( p_access, "stream type = seekable" );
- p_sys->b_broadcast = false;
- }
- else
- {
- msg_Warn( p_access, "unknow stream types (%s)", p );
- p_sys->b_broadcast = false;
- }
- }
- }
- else if( !strcasecmp( psz, "Location" ) )
- {
- psz_location = strdup( p );
- }
- free( psz );
- }
- /* Handle the redirection */
- if( ( (i_code == 301) || (i_code == 302) ||
- (i_code == 303) || (i_code == 307) ) &&
- psz_location && *psz_location )
- {
- msg_Dbg( p_access, "redirection to %s", psz_location );
- net_Close( p_sys->fd ); p_sys->fd = -1;
- *ppsz_location = psz_location;
- return VLC_SUCCESS;
- }
- /* Read the asf header */
- GetHeader( p_access );
- if( p_sys->i_header <= 0 )
- {
- msg_Err( p_access, "header size == 0" );
- goto error;
- }
- /* close this connection */
- net_Close( p_sys->fd );
- p_sys->fd = -1;
- /* *** 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 );
- msg_Dbg( p_access, "packet count=%"PRId64" packet size=%d",
- p_sys->asfh.i_data_packets_count,
- p_sys->asfh.i_min_data_packet_size );
- if( p_sys->asfh.i_min_data_packet_size <= 0 )
- goto error;
- 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" ) );
- return VLC_SUCCESS;
- error:
- if( p_sys->fd > 0 )
- {
- net_Close( p_sys->fd );
- p_sys->fd = -1;
- }
- return VLC_EGENERIC;
- }
- static void GetHeader( access_t *p_access )
- {
- access_sys_t *p_sys = p_access->p_sys;
- /* Read the asf header */
- p_sys->i_header = 0;
- free( p_sys->p_header );
- p_sys->p_header = NULL;
- for( ;; )
- {
- chunk_t ck;
- if( GetPacket( p_access, &ck ) || ck.i_type != 0x4824 )
- break;
- if( ck.i_data > 0 )
- {
- p_sys->i_header += ck.i_data;
- p_sys->p_header = realloc( p_sys->p_header, p_sys->i_header );
- memcpy( &p_sys->p_header[p_sys->i_header - ck.i_data],
- ck.p_data, ck.i_data );
- }
- }
- msg_Dbg( p_access, "complete header size=%d", p_sys->i_header );
- }
- /*****************************************************************************
- * Start stream
- ****************************************************************************/
- static int Start( access_t *p_access, int64_t i_pos )
- {
- access_sys_t *p_sys = p_access->p_sys;
- int i_streams = 0;
- int i_streams_selected = 0;
- int i;
- char *psz = NULL;
- msg_Dbg( p_access, "starting stream" );
- for( i = 1; i < 128; i++ )
- {
- if( p_sys->asfh.stream[i].i_cat == ASF_STREAM_UNKNOWN )
- continue;
- i_streams++;
- if( p_sys->asfh.stream[i].i_selected )
- i_streams_selected++;
- }
- if( i_streams_selected <= 0 )
- {
- msg_Err( p_access, "no stream selected" );
- return VLC_EGENERIC;
- }
- if( OpenConnection( p_access ) )
- return VLC_EGENERIC;
- net_Printf( VLC_OBJECT(p_access), p_sys->fd, NULL,
- "Accept: */*rn"
- "User-Agent: "MMSH_USER_AGENT"rn" );
- if( p_sys->b_broadcast )
- {
- net_Printf( VLC_OBJECT(p_access), p_sys->fd, NULL,
- "Pragma: no-cache,rate=1.000000,request-context=%drn",
- p_sys->i_request_context++ );
- }
- else
- {
- net_Printf( VLC_OBJECT(p_access), p_sys->fd, NULL,
- "Pragma: no-cache,rate=1.000000,stream-time=0,stream-offset=%u:%u,request-context=%d,max-duration=0rn",
- (uint32_t)((i_pos >> 32)&0xffffffff),
- (uint32_t)(i_pos&0xffffffff),
- p_sys->i_request_context++ );
- }
- net_Printf( VLC_OBJECT(p_access), p_sys->fd, NULL,
- "Pragma: xPlayStrm=1rn"
- "Pragma: xClientGUID={"GUID_FMT"}rn"
- "Pragma: stream-switch-count=%drn"
- "Pragma: stream-switch-entry=",
- GUID_PRINT( p_sys->guid ),
- i_streams);
- for( i = 1; i < 128; i++ )
- {
- if( p_sys->asfh.stream[i].i_cat != ASF_STREAM_UNKNOWN )
- {
- int i_select = 2;
- if( p_sys->asfh.stream[i].i_selected )
- {
- i_select = 0;
- }
- net_Printf( VLC_OBJECT(p_access), p_sys->fd, NULL,
- "ffff:%d:%d ", i, i_select );
- }
- }
- net_Printf( VLC_OBJECT(p_access), p_sys->fd, NULL, "rn" );
- net_Printf( VLC_OBJECT(p_access), p_sys->fd, NULL,
- "Connection: Closern" );
- if( net_Printf( VLC_OBJECT(p_access), p_sys->fd, NULL, "rn" ) < 0 )
- {
- msg_Err( p_access, "failed to send request" );
- return VLC_EGENERIC;
- }
- psz = net_Gets( VLC_OBJECT(p_access), p_sys->fd, NULL );
- if( psz == NULL )
- {
- msg_Err( p_access, "cannot read data 0" );
- return VLC_EGENERIC;
- }
- if( atoi( &psz[9] ) >= 400 )
- {
- msg_Err( p_access, "error: %s", psz );
- free( psz );
- return VLC_EGENERIC;
- }
- msg_Dbg( p_access, "HTTP reply '%s'", psz );
- free( psz );
- /* FIXME check HTTP code */
- for( ;; )
- {
- char *psz = net_Gets( p_access, p_sys->fd, NULL );
- if( psz == NULL )
- {
- msg_Err( p_access, "cannot read data 1" );
- return VLC_EGENERIC;
- }
- if( *psz == ' ' )
- {
- free( psz );
- break;
- }
- msg_Dbg( p_access, "%s", psz );
- free( psz );
- }
- p_sys->i_packet_used = 0;
- p_sys->i_packet_length = 0;
- return VLC_SUCCESS;
- }
- /*****************************************************************************
- * closing stream
- *****************************************************************************/
- static void Stop( access_t *p_access )
- {
- access_sys_t *p_sys = p_access->p_sys;
- msg_Dbg( p_access, "closing stream" );
- if( p_sys->fd > 0 )
- {
- net_Close( p_sys->fd );
- p_sys->fd = -1;
- }
- }
- /*****************************************************************************
- * get packet
- *****************************************************************************/
- static int GetPacket( access_t * p_access, chunk_t *p_ck )
- {
- access_sys_t *p_sys = p_access->p_sys;
- int restsize;
- /* chunk_t */
- memset( p_ck, 0, sizeof( chunk_t ) );
- /* Read the chunk header */
- /* Some headers are short, like 0x4324. Reading 12 bytes will cause us
- * to lose synchronization with the stream. Just read to the length
- * (4 bytes), decode and then read up to 8 additional bytes to get the
- * entire header.
- */
- if( net_Read( p_access, p_sys->fd, NULL, p_sys->buffer, 4, true ) < 4 )
- {
- msg_Err( p_access, "cannot read data 2" );
- return VLC_EGENERIC;
- }
- p_ck->i_type = GetWLE( p_sys->buffer);
- p_ck->i_size = GetWLE( p_sys->buffer + 2);
- restsize = p_ck->i_size;
- if( restsize > 8 )
- restsize = 8;
- if( net_Read( p_access, p_sys->fd, NULL, p_sys->buffer + 4, restsize, true ) < restsize )
- {
- msg_Err( p_access, "cannot read data 3" );
- return VLC_EGENERIC;
- }
- p_ck->i_sequence = GetDWLE( p_sys->buffer + 4);
- p_ck->i_unknown = GetWLE( p_sys->buffer + 8);
- /* Set i_size2 to 8 if this header was short, since a real value won't be
- * present in the buffer. Using 8 avoid reading additional data for the
- * packet.
- */
- if( restsize < 8 )
- p_ck->i_size2 = 8;
- else
- p_ck->i_size2 = GetWLE( p_sys->buffer + 10);
- p_ck->p_data = p_sys->buffer + 12;
- p_ck->i_data = p_ck->i_size2 - 8;
- if( p_ck->i_type == 0x4524 ) // Transfer complete
- {
- if( p_ck->i_sequence == 0 )
- {
- msg_Warn( p_access, "EOF" );
- return VLC_EGENERIC;
- }
- else
- {
- msg_Warn( p_access, "next stream following" );
- return VLC_EGENERIC;
- }
- }
- else if( p_ck->i_type == 0x4324 )
- {
- /* 0x4324 is CHUNK_TYPE_RESET: a new stream will follow with a sequence of 0 */
- msg_Warn( p_access, "next stream following (reset) seq=%d", p_ck->i_sequence );
- return VLC_EGENERIC;
- }
- else if( (p_ck->i_type != 0x4824) && (p_ck->i_type != 0x4424) )
- {
- msg_Err( p_access, "invalid chunk FATAL (0x%x)", p_ck->i_type );
- return VLC_EGENERIC;
- }
- if( (p_ck->i_data > 0) &&
- (net_Read( p_access, p_sys->fd, NULL, &p_sys->buffer[12],
- p_ck->i_data, true ) < p_ck->i_data) )
- {
- msg_Err( p_access, "cannot read data 4" );
- return VLC_EGENERIC;
- }
- #if 0
- if( (p_sys->i_packet_sequence != 0) &&
- (p_ck->i_sequence != p_sys->i_packet_sequence) )
- {
- msg_Warn( p_access, "packet lost ? (%d != %d)", p_ck->i_sequence, p_sys->i_packet_sequence );
- }
- #endif
- p_sys->i_packet_sequence = p_ck->i_sequence + 1;
- p_sys->i_packet_used = 0;
- p_sys->i_packet_length = p_ck->i_data;
- p_sys->p_packet = p_ck->p_data;
- return VLC_SUCCESS;
- }