mms.c 53.7 KB
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/*****************************************************************************
 * mms.c: MMS access plug-in
 *****************************************************************************
 * Copyright (C) 2001, 2002 VideoLAN
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 * $Id: mms.c,v 1.7 2002/11/25 00:22:04 fenrir Exp $
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 *
 * 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., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
 *****************************************************************************/


/*
 * TODO:
 *  - clean code, break huge code block
 *  - fix memory leak
 *  - begin udp support...
 */

/*****************************************************************************
 * Preamble
 *****************************************************************************/
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <string.h>
#include <errno.h>
#include <fcntl.h>

#include <vlc/vlc.h>
#include <vlc/input.h>

#ifdef HAVE_UNISTD_H
#   include <unistd.h>
#elif defined( _MSC_VER ) && defined( _WIN32 )
#   include <io.h>
#endif

#ifdef WIN32
#   include <winsock2.h>
#   include <ws2tcpip.h>
#   ifndef IN_MULTICAST
#       define IN_MULTICAST(a) IN_CLASSD(a)
#   endif
#else
#   include <sys/socket.h>
#endif

#include "network.h"
#include "asf.h"
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#include "buffer.h"
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#include "mms.h"
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/****************************************************************************
 * NOTES: 
 *  MMSProtocole documentation found at http://get.to/sdp
 ****************************************************************************/

/*****************************************************************************
 * Local prototypes
 *****************************************************************************/
static int  Open        ( vlc_object_t * );
static void Close       ( vlc_object_t * );

static int  Read        ( input_thread_t * p_input, byte_t * p_buffer,
                          size_t i_len );
static void Seek        ( input_thread_t *, off_t );
static int  SetProgram  ( input_thread_t *, pgrm_descriptor_t * );  


static int MMSOpen( input_thread_t  *, url_t *, int, char * );

static int MMSStart  ( input_thread_t  *, uint32_t );
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static int MMSStop  ( input_thread_t  *p_input );
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static int MMSClose  ( input_thread_t  * );


static int  mms_CommandRead( input_thread_t *p_input, int i_command1, int i_command2 );
static int  mms_CommandSend( input_thread_t *, int, uint32_t, uint32_t, uint8_t *, int );

static int  mms_HeaderMediaRead( input_thread_t *, int );

static int  mms_ReceivePacket( input_thread_t * );
    
static void mms_ParseURL( url_t *p_url, char *psz_url );



/* 
 * XXX DON'T FREE MY MEMORY !!! XXX
 * non mais :P
 */
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/* 
 * Ok, ok, j'le ferai plus...
 */
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/*
 * Merci :)) 
 */
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/*****************************************************************************
 * Module descriptor
 *****************************************************************************/
vlc_module_begin();
    set_description( _("MMS access module") );
    set_capability( "access", 0 );
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    add_category_hint( "stream", NULL );
        add_bool( "mms-all", 0, NULL, 
                  "force selection of all streams",
                  "force selection of all streams" );
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        add_string( "mms-stream", NULL, NULL,
                    "streams selection",
                    "force this stream selection" );
        add_integer( "mms-maxbitrate", 0, NULL, 
                     "max bitrate",
                     "set max bitrate for auto streams selections" );
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    add_shortcut( "mms" );
    add_shortcut( "mmsu" );
    add_shortcut( "mmst" );
    set_callbacks( Open, Close );
vlc_module_end();

#define BUF_SIZE 200000

static int Open( vlc_object_t *p_this )
{
    access_t    *p_access;
    int         i_proto;
    char        *psz_network;
    int         i_status;

    input_thread_t  *p_input = (input_thread_t*)p_this;

    /* *** allocate p_access_data *** */
    p_input->p_access_data = 
        (void*)p_access = malloc( sizeof( access_t ) );
    memset( p_access, 0, sizeof( access_t ) );


    /* *** Parse URL and get server addr/port and path *** */
    mms_ParseURL( &p_access->url, p_input->psz_name );
    if( p_access->url.psz_server_addr == NULL || 
        !( *p_access->url.psz_server_addr ) )
    {
        FREE( p_access->url.psz_private );
        msg_Err( p_input, "invalid server name" );
        return( -1 );
    }
    if( p_access->url.i_server_port == 0 )
    {   
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        p_access->url.i_server_port = 1755; /* default port */
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    }
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    if( p_access->url.i_bind_port == 0 )
    {   
        p_access->url.i_bind_port = 7000;   /* default port */
    }
   
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    /* *** connect to this server *** */
    /* 1: look at  requested protocol (udp/tcp) */
    i_proto = MMS_PROTO_AUTO;
    if( *p_input->psz_access )
    {
        if( !strncmp( p_input->psz_access, "mmsu", 4 ) )
        {
            i_proto = MMS_PROTO_UDP;
        }
        else if( !strncmp( p_input->psz_access, "mmst", 4 ) )
        {
            i_proto = MMS_PROTO_TCP;
        }
    }
    /* 2: look at ip version ipv4/ipv6 */
    psz_network = "";
    if( config_GetInt( p_input, "ipv4" ) )
    {
        psz_network = "ipv4";
    }
    else if( config_GetInt( p_input, "ipv6" ) )
    {
        psz_network = "ipv6";
    }
    /* 3: connect */
    if( i_proto == MMS_PROTO_AUTO )
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    {   /* first try with TCP */
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        i_status = 
            MMSOpen( p_input, &p_access->url, MMS_PROTO_TCP, psz_network );
        if( i_status < 0 )
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        {   /* then with UDP */
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            i_status = 
             MMSOpen( p_input, &p_access->url, MMS_PROTO_UDP, psz_network );
        }
    }
    else
    {

        i_status = 
            MMSOpen( p_input, &p_access->url, i_proto, psz_network );
    }

    if( i_status < 0 )
    {
        msg_Err( p_input, "cannot connect to server" );
        FREE( p_access->url.psz_private );
        return( -1 );
    }
    msg_Dbg( p_input, "connected to %s", p_access->url.psz_server_addr );

    
    /* *** set exported functions *** */
    p_input->pf_read = Read;
    p_input->pf_seek = Seek;
    p_input->pf_set_program = SetProgram;
    p_input->pf_set_area = NULL;
    
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    p_input->p_private = NULL;
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    /* *** finished to set some variable *** */
    vlc_mutex_lock( &p_input->stream.stream_lock );
    /* those data could be different for UDP/TCP */
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    p_input->stream.b_pace_control = 1;
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    p_input->stream.p_selected_area->i_tell = 0;
    if( p_access->i_packet_count <= 0 )
    {
        p_input->stream.b_seekable = 0;
        p_input->stream.p_selected_area->i_size = 0;
    }
    else
    {
        p_input->stream.b_seekable = 0;
        p_input->stream.p_selected_area->i_size = 
            p_access->i_header + 
            p_access->i_packet_count * p_access->i_packet_length;
    }
    
    p_input->stream.i_method = INPUT_METHOD_NETWORK;
    vlc_mutex_unlock( &p_input->stream.stream_lock );

    /* *** Start stream *** */
    if( MMSStart( p_input, 0xffffffff ) < 0 )
    {
        msg_Err( p_input, "cannot start stream" );
        MMSClose( p_input );
        FREE( p_access->url.psz_private );
        return( -1 );
    }
                           
    return( 0 );
}

/*****************************************************************************
 * Close: free unused data structures
 *****************************************************************************/
static void Close( vlc_object_t *p_this )
{
    input_thread_t *  p_input = (input_thread_t *)p_this;
    access_t    *p_access = (access_t*)p_input->p_access_data;
    
    /* close connection with server */
    MMSClose( p_input );
    
    /* free memory */
    FREE( p_access->url.psz_private );
}

/*****************************************************************************
 * SetProgram: do nothing
 *****************************************************************************/
static int SetProgram( input_thread_t * p_input,
                       pgrm_descriptor_t * p_program )
{
    return( 0 );
}

/*****************************************************************************
 * Seek: try to go at the right place
 *****************************************************************************/
static void Seek( input_thread_t * p_input, off_t i_pos )
{
    /* 
     * FIXME  
     * Don't work
     * Probably some bad or missing command
     *
     * 
     */
#if 0

    access_t    *p_access = (access_t*)p_input->p_access_data;
    uint32_t    i_packet;
    uint32_t    i_offset;
    
    if( i_pos < 0 )
    {
        return;
    }    
    msg_Dbg( p_input, "seeking to %lld, header size:%d", i_pos, p_access->i_header );
    if( i_pos < p_access->i_header)
    {

        if( p_access->i_pos < p_access->i_header )
        {
            /* no need to restart stream, it was already one 
             * or no stream was yet read */
            p_access->i_pos = i_pos;
            return;
        }
        else
        {
            i_packet = 0xffffffff;
            i_offset = 0;
        }
    }
    else
    {
        i_packet = ( i_pos - p_access->i_header ) / p_access->i_packet_length;
        i_offset = ( i_pos - p_access->i_header ) % p_access->i_packet_length;
    }

    MMSStop( p_input );
    MMSStart( p_input, i_packet );
    p_access->i_media_used += i_offset;
    p_access->i_pos = i_pos;
#endif
}

static int  Read        ( input_thread_t * p_input, byte_t * p_buffer,
                          size_t i_len )
{
    access_t    *p_access = (access_t*)p_input->p_access_data;
    size_t      i_data;
    size_t      i_copy;

    i_data = 0;
    
    /* *** send header if needed ** */
    if( p_access->i_pos < p_access->i_header )
    { 
        i_copy = __MIN( i_len, p_access->i_header - p_access->i_pos );
        if( i_copy > 0 )
        {
            memcpy( p_buffer, 
                    p_access->p_header + p_access->i_pos,
                    i_copy );
        }
        i_data += i_copy;
    }

    /* *** now send data if needed *** */
    while( i_data < i_len )
    {
        if( p_access->i_media_used < p_access->i_media )
        {
            i_copy = __MIN( i_len - i_data , 
                            p_access->i_media - p_access->i_media_used );
            memcpy( p_buffer + i_data, 
                    p_access->p_media + p_access->i_media_used,
                    i_copy );
            i_data += i_copy;
            p_access->i_media_used += i_copy;
        }
        else if( p_access->p_media != NULL && 
                 p_access->i_media_used < p_access->i_packet_length )
        {
            i_copy = __MIN( i_len - i_data,
                            p_access->i_packet_length - p_access->i_media_used);
            memset( p_buffer + i_data, 0, i_copy );

            i_data += i_copy;
            p_access->i_media_used += i_copy;
        }
        else
        {
            if( mms_HeaderMediaRead( p_input, MMS_PACKET_MEDIA ) < 0 );
            {
                p_access->i_pos += i_data;
                return( i_data );
            }
        }
    }

    p_access->i_pos += i_data;
    return( i_data );
}

static void asf_HeaderParse( mms_stream_t stream[128],
                             uint8_t *p_header, int i_header )
{
    var_buffer_t buffer;
    guid_t      guid;
    uint64_t    i_size;
    int         i;
    
    for( i = 0; i < 128; i++ )
    {
        stream[i].i_cat = MMS_STREAM_UNKNOWN;
    }

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//    fprintf( stderr, " ---------------------header:%d\n", i_header );
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    var_buffer_initread( &buffer, p_header, i_header );
    
    var_buffer_getguid( &buffer, &guid );
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    if( !CmpGuid( &guid, &asf_object_header_guid ) )
    {
//        XXX Error
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//        fprintf( stderr, " ---------------------ERROR------\n" );
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    }
    var_buffer_getmemory( &buffer, NULL, 30 - 16 );
    
    for( ;; )
    {
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//    fprintf( stderr, " ---------------------data:%d\n", buffer.i_data );
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        if( var_buffer_readempty( &buffer ) )
        {
            return;
        }

        var_buffer_getguid( &buffer, &guid );
        i_size = var_buffer_get64( &buffer );
        if( CmpGuid( &guid, &asf_object_stream_properties_guid ) )
        {
            int     i_stream_id;
            guid_t  stream_type;
//            msg_Dbg( p_input, "found stream_properties" );
            
            var_buffer_getguid( &buffer, &stream_type );
            var_buffer_getmemory( &buffer, NULL, 32 );
            i_stream_id = var_buffer_get8( &buffer ) & 0x7f;
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 //           fprintf( stderr, " 1---------------------skip:%lld\n", i_size - 24 - 32 - 16 - 1 );
            var_buffer_getmemory( &buffer, NULL, i_size - 24 - 32 - 16 - 1);
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            if( CmpGuid( &stream_type, &asf_object_stream_type_video ) )
            {
//                msg_Dbg( p_input, "video stream[%d] found", i_stream_id );
                stream[i_stream_id].i_cat = MMS_STREAM_VIDEO;
            }
            else if( CmpGuid( &stream_type, &asf_object_stream_type_audio ) )
            {
//                msg_Dbg( p_input, "audio stream[%d] found", i_stream_id );
                stream[i_stream_id].i_cat = MMS_STREAM_AUDIO;
            }
            else
            {
//                msg_Dbg( p_input, "unknown stream[%d] found", i_stream_id );
                stream[i_stream_id].i_cat = MMS_STREAM_UNKNOWN;
            }
        }
        else if ( CmpGuid( &guid, &asf_object_bitrate_properties_guid ) )
        {
            int     i_count;
            uint8_t i_stream_id;
            
            i_count = var_buffer_get16( &buffer );
            i_size -= 2;
            while( i_count > 0 )
            {
                i_stream_id = var_buffer_get16( &buffer )&0x7f;
                stream[i_stream_id].i_bitrate =  var_buffer_get32( &buffer );
                i_count--;
                i_size -= 6;
            }
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//            fprintf( stderr, " 2---------------------skip:%lld\n", i_size - 24);
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            var_buffer_getmemory( &buffer, NULL, i_size - 24 );
        }
        else            
        {
            // skip unknown guid
            var_buffer_getmemory( &buffer, NULL, i_size - 24 );
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//            fprintf( stderr, " 3---------------------skip:%lld\n", i_size - 24);
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        }
    }
}

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static void mms_StreamSelect( input_thread_t * p_input, 
                              mms_stream_t stream[128] )
{
    /* XXX FIXME use mututal eclusion information */
    int i;
    int i_audio, i_video;
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    int b_audio, b_video;
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    int i_bitrate_total;
    int i_bitrate_max;
    char *psz_stream;

    i_audio = 0;
    i_video = 0;
    i_bitrate_total = 0;
    i_bitrate_max = config_GetInt( p_input, "mms-maxbitrate" );
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    b_audio = config_GetInt( p_input, "audio" );
    b_video = config_GetInt( p_input, "video" );
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    if( config_GetInt( p_input, "mms-all" ) )
    {
        /* select all valid stream */
        for( i = 1; i < 128; i++ )
        {
            if( stream[i].i_cat != MMS_STREAM_UNKNOWN )
            {
                stream[i].i_selected = 1;
            }
        }
        return;
    }
    else
    {
        for( i = 0; i < 128; i++ )
        {
            stream[i].i_selected = 0; /* by default, not selected */
        }
    }
    psz_stream = config_GetPsz( p_input, "mms-stream" );

    if( psz_stream && *psz_stream )
    {
        char *psz_tmp = psz_stream;
        while( *psz_tmp )
        {
            if( *psz_tmp == ',' )
            {
                psz_tmp++;
            }
            else
            {
                int i_stream;
                i_stream = atoi( psz_tmp );
                while( *psz_tmp != '\0' && *psz_tmp != ',' )
                {
                    psz_tmp++;
                }

                if( i_stream > 0 && i_stream < 128 &&
                    stream[i_stream].i_cat != MMS_STREAM_UNKNOWN )
                {
                    stream[i_stream].i_selected = 1;
                }
            }
        }
        FREE( psz_stream );
        return;
    }
    FREE( psz_stream );

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    /* big test:
     * select a stream if 
     *    - no audio nor video stream    
     *    - or: 
     *         - if i_bitrate_max not set keep the highest bitrate
     *         - if i_bitrate_max is set, keep stream that make we used best
     *           quality regarding i_bitrate_max
     *
     * XXX: little buggy:
     *        - it doesn't use mutual exclusion info..
     *        - when selecting a better stream we could select 
     *        something that make i_bitrate_total> i_bitrate_max
     */ 
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    for( i = 1; i < 128; i++ )
    {
        if( stream[i].i_cat == MMS_STREAM_UNKNOWN )
        {
            continue;
        }
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        else if( stream[i].i_cat == MMS_STREAM_AUDIO && b_audio &&
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                 ( i_audio <= 0 || 
                    ( ( ( stream[i].i_bitrate > stream[i_audio].i_bitrate && 
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                          ( i_bitrate_total + stream[i].i_bitrate - stream[i_audio].i_bitrate 
                                            < i_bitrate_max || !i_bitrate_max) ) ||
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                        ( stream[i].i_bitrate < stream[i_audio].i_bitrate && 
                              i_bitrate_max != 0 && i_bitrate_total > i_bitrate_max )
                      ) )  ) )
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        {
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            /* unselect old stream */
            if( i_audio > 0 )
            {
                stream[i_audio].i_selected = 0;
                if( stream[i_audio].i_bitrate> 0 )
                {
                    i_bitrate_total -= stream[i_audio].i_bitrate;
                }
            }

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            stream[i].i_selected = 1;
            if( stream[i].i_bitrate> 0 )
            {
                i_bitrate_total += stream[i].i_bitrate;
            }
            i_audio = i;
        }
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        else if( stream[i].i_cat == MMS_STREAM_VIDEO && b_video &&
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                 ( i_video <= 0 || 
                    (
                        ( ( stream[i].i_bitrate > stream[i_video].i_bitrate && 
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                            ( i_bitrate_total + stream[i].i_bitrate - stream[i_video].i_bitrate 
                                            < i_bitrate_max || !i_bitrate_max) ) ||
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                          ( stream[i].i_bitrate < stream[i_video].i_bitrate && 
                            i_bitrate_max != 0 && i_bitrate_total > i_bitrate_max )
                        ) ) )  )
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        {
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            /* unselect old stream */

            stream[i_video].i_selected = 0;
            if( stream[i_video].i_bitrate> 0 )
            {
                i_bitrate_total -= stream[i_video].i_bitrate;
            }

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            stream[i].i_selected = 1;
            if( stream[i].i_bitrate> 0 )
            {
                i_bitrate_total += stream[i].i_bitrate;
            }
            i_video = i;
        }
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    }
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    if( i_bitrate_max > 0 )
    {
        msg_Dbg( p_input, 
                 "requested bitrate:%d real bitrate:%d", 
                 i_bitrate_max, i_bitrate_total );
    }
    else
    {
        msg_Dbg( p_input, 
                 "total bitrate:%d", 
                 i_bitrate_total );
    }
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}

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/****************************************************************************
 * MMSOpen : Open a connection with the server over mmst or mmsu(not yet)
 ****************************************************************************/
static int MMSOpen( input_thread_t  *p_input,
                       url_t *p_url,
                       int  i_proto,
                       char *psz_network ) /* "", "ipv4", "ipv6" */
{
    module_t    *p_network;
    access_t    *p_access = (access_t*)p_input->p_access_data;

    network_socket_t    socket_desc;
    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;


    /* *** Open a TCP connection with server *** */
    msg_Dbg( p_input, "waiting for connection..." );
    socket_desc.i_type = NETWORK_TCP;
    socket_desc.psz_server_addr = p_url->psz_server_addr;
    socket_desc.i_server_port   = p_url->i_server_port;
    socket_desc.psz_bind_addr   = "";
    socket_desc.i_bind_port     = 0;
    p_input->p_private = (void*)&socket_desc;
    if( !( p_network = module_Need( p_input, "network", psz_network ) ) )
    {
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        msg_Err( p_input, "failed to open a connection (tcp)" );
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        return( -1 );
    }
    module_Unneed( p_input, p_network );
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    p_access->socket_tcp.i_handle = socket_desc.i_handle;
    p_input->i_mtu    = 0; /*socket_desc.i_mtu;*/
686
    msg_Dbg( p_input, 
687
             "connection(tcp) with \"%s:%d\" successful",
688 689 690 691 692 693 694
             p_url->psz_server_addr,
             p_url->i_server_port );

    /* *** Bind port if UDP protocol is selected *** */
    if( b_udp )
    {
        msg_Err( p_input,
695 696 697 698
                 "MMS/UDP not yet functionnal, anyway trying..." );
        if( !p_url->psz_bind_addr || !*p_url->psz_bind_addr )
        {
            msg_Err( p_input, "for udp you have to provide bind address (mms://<server_addr>@<bind_addr/<path> (FIXME)" );
699
#if defined( UNDER_CE )
700
            CloseHandle( (HANDLE)p_access->socket_tcp.i_handle );
701
#elif defined( WIN32 )
702
            closesocket( p_access->socket_tcp.i_handle );
703
#else
704
            close( p_access->socket_tcp.i_handle );
705
#endif
706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729
            return( -1 );
        }
        socket_desc.i_type = NETWORK_UDP;
        socket_desc.psz_server_addr = "";
        socket_desc.i_server_port   = 0;
        socket_desc.psz_bind_addr   = p_url->psz_bind_addr;
        socket_desc.i_bind_port     = p_url->i_bind_port;
        p_input->p_private = (void*)&socket_desc;
        if( !( p_network = module_Need( p_input, "network", psz_network ) ) )
        {
            msg_Err( p_input, "failed to open a connection (udp)" );
#if defined( UNDER_CE )
            CloseHandle( (HANDLE)p_access->socket_tcp.i_handle );
#elif defined( WIN32 )
            closesocket( p_access->socket_tcp.i_handle );
#else
            close( p_access->socket_tcp.i_handle );
#endif
            return( -1 );
        }
        module_Unneed( p_input, p_network );
        p_access->socket_udp.i_handle = socket_desc.i_handle;
        p_input->i_mtu    = 0;/*socket_desc.i_mtu;  FIXME */

730 731 732
    }

    /* *** Init context for mms prototcol *** */
733
    GenerateGuid( &p_access->guid );    /* used to identify client by server */
734 735 736
    msg_Dbg( p_input, 
             "generated guid: "GUID_FMT, 
             GUID_PRINT( p_access->guid ) );
737
    p_access->i_command_level = 1;          /* updated after 0x1A command */
738 739 740 741 742 743 744 745 746 747 748 749
    p_access->i_seq_num = 0;
    p_access->i_media_packet_id_type  = 0x04;
    p_access->i_header_packet_id_type = 0x02;
    p_access->i_proto = i_proto;
    p_access->i_packet_seq_num = 0;
    p_access->p_header = NULL;
    p_access->i_header = 0;
    p_access->p_media = NULL;
    p_access->i_media = 0;
    p_access->i_media_used = 0;

    p_access->i_pos = 0;
750 751 752 753
    p_access->i_buffer_tcp = 0;
    p_access->i_buffer_udp = 0;
    p_access->p_cmd = NULL;
    p_access->i_cmd = 0;
754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807

    /* *** 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_access->guid ),
             p_url->psz_server_addr );
    var_buffer_addUTF16( &buffer, tmp );
    
    mms_CommandSend( p_input,
                     0x01,          /* connexion request */
                     0x00000000,    /* flags, FIXME */
                     0x0004000b,    /* ???? */
                     buffer.p_data,
                     buffer.i_data );

    mms_CommandRead( p_input, 0x01, 0 );
    i_server_version = GetDWLE( p_access->p_cmd + MMS_CMD_HEADERSIZE + 32 );
    i_tool_version = GetDWLE( p_access->p_cmd + MMS_CMD_HEADERSIZE + 36 );
    i_update_player_url = GetDWLE( p_access->p_cmd + MMS_CMD_HEADERSIZE + 40 );
    i_encryption_type = GetDWLE( p_access->p_cmd + MMS_CMD_HEADERSIZE + 44 );
    p = (uint16_t*)( p_access->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] = '\0'; \
        p += 2 * ( size ); \
    }
    GETUTF16( p_access->psz_server_version, i_server_version );
    GETUTF16( p_access->psz_tool_version, i_tool_version );
    GETUTF16( p_access->psz_update_player_url, i_update_player_url );
    GETUTF16( p_access->psz_encryption_type, i_encryption_type );
#undef GETUTF16
    msg_Dbg( p_input, 
             "0x01 --> server_version:\"%s\" tool_version:\"%s\" update_player_url:\"%s\" encryption_type:\"%s\"",
             p_access->psz_server_version,
             p_access->psz_tool_version,
             p_access->psz_update_player_url,
             p_access->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 );
808 809 810 811 812 813 814 815 816 817 818
    if( b_udp )
    {
        sprintf( tmp, 
                 "\\\\%s\\UDP\\%d",
                 p_url->psz_bind_addr,
                 p_url->i_bind_port );
    }
    else
    {
        sprintf( tmp, "\\\\127.0.0.1\\TCP\\1242"  );
    }
819 820 821 822 823 824 825 826 827 828 829
    var_buffer_addUTF16( &buffer, tmp );
    var_buffer_add16( &buffer, '0' );
    
    mms_CommandSend( p_input,
                     0x02,          /* connexion request */
                     0x00000000,    /* flags, FIXME */
                     0xffffffff,    /* ???? */
                     buffer.p_data,
                     buffer.i_data );

    /* *** response from server, should be 0x02 or 0x03 *** */
830
    mms_CommandRead( p_input, 0x02, 0x03 );
831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862
    if( p_access->i_command == 0x03 )
    {
        msg_Err( p_input, 
                 "%s protocol selection failed", b_udp ? "UDP" : "TCP" );
        var_buffer_free( &buffer );
        MMSClose( p_input );
        return( -1 );
    }
    else if( p_access->i_command != 0x02 )
    {
        msg_Warn( p_input, "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 );
    var_buffer_addUTF16( &buffer, p_url->psz_path );
    
    mms_CommandSend( p_input, 
                     0x05,
                     p_access->i_command_level,
                     0xffffffff,
                     buffer.p_data,
                     buffer.i_data );

    /* *** wait for reponse *** */
    mms_CommandRead( p_input, 0x1a, 0x06 );
    
    /* test if server send 0x1A answer */
    if( p_access->i_command == 0x1A )
    {
        msg_Err( p_input, "id/password requested (not yet supported)" );
863
        /*  FIXME */
864 865 866 867 868 869 870 871 872 873 874 875 876 877
        var_buffer_free( &buffer );
        MMSClose( p_input );
        return( -1 );
    }
    if( p_access->i_command != 0x06 )
    {
        msg_Err( p_input, 
                 "unknown answer (0x%x instead of 0x06)",
                 p_access->i_command );
        var_buffer_free( &buffer );
        MMSClose( p_input );
        return( -1 );
    }

878
    /*  1 for file ok, 2 for authen ok */
879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917
    switch( GetDWLE( p_access->p_cmd + MMS_CMD_HEADERSIZE ) )
    {
        case 0x0001:
            msg_Dbg( p_input, "Media file name/path accepted" );
            break;
        case 0x0002:
            msg_Dbg( p_input, "Authentication accepted" );
            break;
        case -1:
        default:
        msg_Err( p_input, "error while asking for file %d",
                 GetDWLE( p_access->p_cmd + MMS_CMD_HEADERSIZE ) );
        var_buffer_free( &buffer );
        MMSClose( p_input );
        return( -1 );
    }

    p_access->i_flags_broadcast = 
        GetDWLE( p_access->p_cmd + MMS_CMD_HEADERSIZE + 12 );
    p_access->i_media_length =
        GetDWLE( p_access->p_cmd + MMS_CMD_HEADERSIZE + 24 );
    p_access->i_packet_length =
        GetDWLE( p_access->p_cmd + MMS_CMD_HEADERSIZE + 44 );
    p_access->i_packet_count =
        GetDWLE( p_access->p_cmd + MMS_CMD_HEADERSIZE + 48 );
    p_access->i_max_bit_rate =
        GetDWLE( p_access->p_cmd + MMS_CMD_HEADERSIZE + 56 );
    p_access->i_header_size =
        GetDWLE( p_access->p_cmd + MMS_CMD_HEADERSIZE + 60 );

    msg_Dbg( p_input,
             "answer 0x06 flags:0x%8.8x media_length:%ds packet_length:%d packet_count:%d max_bit_rate:%d header_size:%d",
             p_access->i_flags_broadcast,
             p_access->i_media_length,
             p_access->i_packet_length,
             p_access->i_packet_count,
             p_access->i_max_bit_rate,
             p_access->i_header_size );
    
918 919 920
    /* XXX XXX dirty hack XXX XXX */
    p_input->i_mtu    = 3 * p_access->i_packet_length;
    
921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955
    /* *** 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, 0x40ac200000000000 );
    var_buffer_add32( &buffer, p_access->i_header_packet_id_type );
    mms_CommandSend( p_input, 0x15, p_access->i_command_level, 0x00, 
                     buffer.p_data, buffer.i_data );

    /* *** wait for reponse *** */
    mms_CommandRead( p_input, 0x11, 0 );

    if( p_access->i_command != 0x11 )
    {
        msg_Err( p_input, 
                 "unknown answer (0x%x instead of 0x11)",
                 p_access->i_command );
        var_buffer_free( &buffer );
        MMSClose( p_input );
        return( -1 );
    }
    /* *** now read header packet *** */
    if( mms_HeaderMediaRead( p_input, MMS_PACKET_HEADER ) < 0 )
    {
        msg_Err( p_input, "cannot receive header" );
        var_buffer_free( &buffer );
        MMSClose( p_input );
        return( -1 );
    }
    /* *** parse header and get stream and their id *** */
956 957 958 959
    /* get all streams properties,
     * 
     * TODO : stream bitrates properties(optional)
     *        and bitrate mutual exclusion(optional) */
960 961
    asf_HeaderParse( p_access->stream, 
                     p_access->p_header, p_access->i_header );
962
    mms_StreamSelect( p_input, p_access->stream );
963
    /* *** now select stream we want to receive *** */
964
    /* TODO take care of stream bitrate TODO */
965 966 967 968 969 970
    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++ )
    {
971 972
        
        if( p_access->stream[i].i_cat != MMS_STREAM_UNKNOWN )
973 974
        {
            i_streams++;
975
            if( i_first != -1 )
976 977 978 979
            {
                var_buffer_add16( &buffer, 0xffff );
                var_buffer_add16( &buffer, i );
            }
980
            else
981
            {
982
                i_first = i;
983
            }
984
            if( p_access->stream[i].i_selected )
985
            {
986 987 988 989 990 991 992
                var_buffer_add16( &buffer, 0x0000 );
                msg_Info( p_input, 
                          "selecting stream[0x%x] %s (%d kb/s)",
                          i,
                          ( p_access->stream[i].i_cat == MMS_STREAM_AUDIO  ) ? 
                                                  "audio" : "video" ,
                          p_access->stream[i].i_bitrate / 1024);
993
            }
994 995 996 997 998 999 1000 1001 1002
            else
            {
                var_buffer_add16( &buffer, 0x0002 );
                msg_Info( p_input, 
                          "ignoring stream[0x%x] %s (%d kb/s)",
                          i,
                          ( p_access->stream[i].i_cat == MMS_STREAM_AUDIO  ) ? 
                                    "audio" : "video" ,
                          p_access->stream[i].i_bitrate / 1024);
1003

1004
            }
1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048
        }
    } 

    if( i_streams == 0 )
    {
        msg_Err( p_input, "cannot find any stream" );
        var_buffer_free( &buffer );
        MMSClose( p_input );
        return( -1 );
    }
    mms_CommandSend( p_input, 0x33,
                     i_streams,
                     0xffff | ( i_first << 16 ),
                     buffer.p_data, buffer.i_data );
    
    mms_CommandRead( p_input, 0x21, 0 );
    if( p_access->i_command != 0x21 )
    {
        msg_Err( p_input, 
                 "unknown answer (0x%x instead of 0x21)", 
                 p_access->i_command );
        var_buffer_free( &buffer );
        MMSClose( p_input );
        return( -1 );
    }


    var_buffer_free( &buffer );

    msg_Info( p_input, "connection sucessful" );

    return( 0 );
}

/****************************************************************************
 * MMSStart : Start streaming
 ****************************************************************************/
static int MMSStart  ( input_thread_t  *p_input, uint32_t i_packet )
{
    access_t        *p_access = (access_t*)p_input->p_access_data;
    var_buffer_t    buffer;

    /* *** start stream from packet 0 *** */
    var_buffer_initwrite( &buffer, 0 );
1049
    var_buffer_add64( &buffer, 0 ); /* seek point in second */
1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112
    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_access->i_media_packet_id_type ); 
    
    mms_CommandSend( p_input, 0x07, p_access->i_command_level, 0x0001ffff, 
                     buffer.p_data, buffer.i_data );
    
    var_buffer_free( &buffer );
    
    mms_CommandRead( p_input, 0x05, 0 );

    if( p_access->i_command != 0x05 )
    {
        msg_Err( p_input, 
                 "unknown answer (0x%x instead of 0x05)", 
                 p_access->i_command );
        return( -1 );
    }
    else
    {   
        /* get a packet */
        mms_HeaderMediaRead( p_input, MMS_PACKET_MEDIA );
        msg_Dbg( p_input, "Streaming started" );
        return( 0 );
    }
}

/****************************************************************************
 * MMSStop : Stop streaming
 ****************************************************************************/
static int MMSStop  ( input_thread_t  *p_input )
{
    access_t        *p_access = (access_t*)p_input->p_access_data;

    /* *** stop stream but keep connection alive *** */    
    mms_CommandSend( p_input,
                     0x09,
                     p_access->i_command_level,
                     0x001fffff,
                     NULL, 0 );
    return( 0 );
}

/****************************************************************************
 * MMSClose : Close streaming and connection
 ****************************************************************************/
static int MMSClose  ( input_thread_t  *p_input )
{
    access_t        *p_access = (access_t*)p_input->p_access_data;

    msg_Dbg( p_input, "Connection closed" );

    /* *** tell server that we will disconnect *** */    
    mms_CommandSend( p_input,
                     0x0d,
                     p_access->i_command_level,
                     0x00000001,
                     NULL, 0 );
    /* *** close sockets *** */
1113
#if defined( UNDER_CE )
1114
    CloseHandle( (HANDLE)p_access->socket_tcp.i_handle );
1115
#elif defined( WIN32 )
1116
    closesocket( p_access->socket_tcp.i_handle );
1117
#else
1118
    close( p_access->socket_tcp.i_handle );
1119
#endif
1120 1121 1122

    if( p_access->i_proto == MMS_PROTO_UDP )
    {
1123
#if defined( UNDER_CE )
1124
        CloseHandle( (HANDLE)p_access->socket_udp.i_handle );
1125
#elif defined( WIN32 )
1126
        closesocket( p_access->socket_udp.i_handle );
1127
#else
1128
        close( p_access->socket_udp.i_handle );
1129
#endif
1130 1131
    }
    
1132
    FREE( p_access->p_cmd );
1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161
    FREE( p_access->p_media );
    FREE( p_access->p_header );

    FREE( p_access->psz_server_version );
    FREE( p_access->psz_tool_version );
    FREE( p_access->psz_update_player_url );
    FREE( p_access->psz_encryption_type );

    return( 0 );
}

/*****************************************************************************
 * mms_ParseURL : parse an url string and fill an url_t 
 *****************************************************************************/
static void mms_ParseURL( url_t *p_url, char *psz_url )
{
    char *psz_parser;
    char *psz_server_port;

    p_url->psz_private = strdup( psz_url );
    
    psz_parser = p_url->psz_private;
    
    while( *psz_parser == '/' )
    {
        psz_parser++;
    }
    p_url->psz_server_addr = psz_parser;

1162 1163
    while( *psz_parser && 
           *psz_parser != ':' &&  *psz_parser != '/' && *psz_parser != '@' )
1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182
    {
        psz_parser++;
    } 

    if( *psz_parser == ':' )
    {
        *psz_parser = '\0';
        psz_parser++;
        psz_server_port = psz_parser;

        while( *psz_parser && *psz_parser != '/' )
        {
            psz_parser++;
        }
    }
    else
    {
        psz_server_port = "";
    }
1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227

    if( *psz_parser == '@' )
    {
        char *psz_bind_port;
        
        *psz_parser = '\0';
        psz_parser++;
                        
        p_url->psz_bind_addr = psz_parser;

        while( *psz_parser && *psz_parser != ':' && *psz_parser != '/' )
        {
            psz_parser++;
        } 

        if( *psz_parser == ':' )
        {
            *psz_parser = '\0';
            psz_parser++;
            psz_bind_port = psz_parser;

            while( *psz_parser && *psz_parser != '/' )
            {
                psz_parser++;
            }
        }
        else
        {
            psz_bind_port = "";
        }
        if( *psz_bind_port )
        {
            p_url->i_bind_port = strtol( psz_bind_port, &psz_parser, 10 );
        }
        else
        {
            p_url->i_bind_port = 0;
        }
    }
    else
    {
        p_url->psz_bind_addr = "";
        p_url->i_bind_port = 0;
    }

1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265
    if( *psz_parser == '/' )
    {
        *psz_parser = '\0';
        psz_parser++;
        p_url->psz_path = psz_parser;
    }
    
    if( *psz_server_port )
    {
        p_url->i_server_port = strtol( psz_server_port, &psz_parser, 10 );
    }
    else
    {
        p_url->i_server_port = 0;
    }
}

/****************************************************************************
 *
 * MMS specific functions
 *
 ****************************************************************************/

static int mms_CommandSend( input_thread_t *p_input, 
                             int i_command, 
                             uint32_t i_prefix1, uint32_t i_prefix2, 
                             uint8_t *p_data, int i_data )
{
    var_buffer_t buffer;

    access_t    *p_access = (access_t*)p_input->p_access_data;
    int i_data_by8;
    
    i_data_by8 = ( i_data + 7 ) / 8;

    /* first init uffer */
    var_buffer_initwrite( &buffer, 0 );

1266 1267 1268
    var_buffer_add32( &buffer, 0x00000001 );    /* start sequence */
    var_buffer_add32( &buffer, 0xB00BFACE );
    /* size after protocol type */
1269
    var_buffer_add32( &buffer, i_data + MMS_CMD_HEADERSIZE - 16 );     
1270
    var_buffer_add32( &buffer, 0x20534d4d );    /* protocol "MMS " */
1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285
    var_buffer_add32( &buffer, i_data_by8 + 4 );
    var_buffer_add32( &buffer, p_access->i_seq_num ); p_access->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 );
    }

    /* send it */
1286
    if( send( p_access->socket_tcp.i_handle, 
1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298
              buffer.p_data, 
              buffer.i_data,
              0 ) == -1 )
    {
        msg_Err( p_input, "failed to send command" );
        return( -1 );
    }

    var_buffer_free( &buffer );
    return( 0 );
}   

1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411
static int  NetFillBuffer( input_thread_t *p_input )
{
#ifdef UNDER_CE
    return -1;
#else
    access_t    *p_access = (access_t*)p_input->p_access_data;
    struct timeval  timeout;
    fd_set          fds;
    int             i_ret;

    /* FIXME when using udp */
    ssize_t i_tcp, i_udp;
    ssize_t i_tcp_read, i_udp_read;
    int i_handle_max;

    /* Initialize file descriptor set */
    FD_ZERO( &fds );

    i_tcp = MMS_BUFFER_SIZE/2 - p_access->i_buffer_tcp;
    
    if( p_access->i_proto == MMS_PROTO_UDP )
    {
        i_udp = MMS_BUFFER_SIZE/2 - p_access->i_buffer_udp;
    }
    else
    {
        i_udp = 0;  /* there isn't udp socket */
    }
    
    i_handle_max = 0;
    if( i_tcp > 0 )
    {
        FD_SET( p_access->socket_tcp.i_handle, &fds );
        i_handle_max = __MAX( i_handle_max, p_access->socket_tcp.i_handle );
    }
    if( i_udp > 0 )
    {
        FD_SET( p_access->socket_udp.i_handle, &fds );
        i_handle_max = __MAX( i_handle_max, p_access->socket_udp.i_handle );
    }
   
    if( i_handle_max == 0 )
    {
        msg_Warn( p_input, "nothing to read %d:%d", i_tcp, i_udp );
        return( 0 );
    }
    else
    {
        msg_Warn( p_input, "ask for tcp:%d udp:%d", i_tcp, i_udp );
    }

    /* We'll wait 0.5 second if nothing happens */
    timeout.tv_sec = 0;
    timeout.tv_usec = 500000;

    /* Find if some data is available */
    i_ret = select( i_handle_max + 1, 
                    &fds,
                    NULL, NULL, &timeout );

    if( i_ret == -1 && errno != EINTR )
    {
        msg_Err( p_input, "network select error (%s)", strerror(errno) );
        return -1;
    }
    
    if( i_tcp > 0 && FD_ISSET( p_access->socket_tcp.i_handle, &fds ) )
    {
        i_tcp_read = 
            recv( p_access->socket_tcp.i_handle, 
                  p_access->buffer_tcp + p_access->i_buffer_tcp, 
                  i_tcp + MMS_BUFFER_SIZE/2, 0 );
    }
    else
    {
        i_tcp_read = 0;
    }
    
    if( i_udp > 0 && FD_ISSET( p_access->socket_udp.i_handle, &fds ) )
    {
        i_udp_read = recv( p_access->socket_udp.i_handle, 
                           p_access->buffer_udp + p_access->i_buffer_udp, 
                           i_udp + MMS_BUFFER_SIZE/2, 0 );
    }
    else
    {
        i_udp_read = 0;
    }

    
    p_access->i_buffer_tcp += i_tcp_read;
    p_access->i_buffer_udp += i_udp_read;
    
    msg_Dbg( p_input, 
             "filling TCP buffer with %d bytes (buffer:%d)", 
             i_tcp_read,
             p_access->i_buffer_tcp );
    if( p_access->i_proto == MMS_PROTO_UDP )
    {
        msg_Dbg( p_input, 
                 "filling UDP buffer with %d bytes (buffer:%d)", 
                 i_udp_read,
                 p_access->i_buffer_udp );
    }

    return( i_tcp_read + i_udp_read);
#endif
}

static int  mms_ParseCommand( input_thread_t *p_input, 
                              uint8_t *p_data, 
                              int i_data,
                              int *pi_used )
1412
{
1413
 #define GET32( i_pos ) \
1414 1415 1416 1417 1418
    ( p_access->p_cmd[i_pos] + ( p_access->p_cmd[i_pos +1] << 8 ) + \
      ( p_access->p_cmd[i_pos + 2] << 16 ) + \
      ( p_access->p_cmd[i_pos + 3] << 24 ) )

    access_t    *p_access = (access_t*)p_input->p_access_data;
1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551
    int         i_length;
    uint32_t    i_id;
    
    if( p_access->p_cmd )
    {
        free( p_access->p_cmd );
    }
    p_access->i_cmd = i_data;
    p_access->p_cmd = malloc( i_data );
    memcpy( p_access->p_cmd, p_data, i_data );
    
    *pi_used = i_data; /* by default */

    if( i_data < MMS_CMD_HEADERSIZE )
    {
        msg_Warn( p_input, "truncated command (header incomplete)" );
        p_access->i_command = 0;
        return( -1 );
    }
    i_id =  GetDWLE( p_data + 4 );
    i_length = GetDWLE( p_data + 8 ) + 16;
    
    if( i_id != 0xb00bface )
    {
        msg_Err( p_input, 
                 "incorrect command header (0x%x)", i_id );
        p_access->i_command = 0;
        return( -1 );
    }
   
    if( i_length > p_access->i_cmd )
    {
        msg_Warn( p_input, 
                  "truncated command (missing %d bytes)",
                   i_length - i_data  );
        p_access->i_command = 0;
        return( -1 );
    }
    else if( i_length < p_access->i_cmd )
    {
        p_access->i_cmd = i_length;
        *pi_used = i_length;
    }

    msg_Dbg( p_input, 
             "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 ),
             GET32( 16 ),
             GET32( 20 ),
             GET32( 32 ),
             GET32( 36 ),
             GET32( 40 ) );

    p_access->i_command = GET32( 36 ) & 0xffff;

    return( MMS_PACKET_CMD );
}

static int  mms_ParsePacket( input_thread_t *p_input, 
                             uint8_t *p_data, int i_data,
                              int *pi_used )
{
    access_t    *p_access = (access_t*)p_input->p_access_data;
    int i_packet_seq_num;
    int i_packet_length;
    int i_packet_id;

    uint8_t  *p_packet;


    *pi_used = i_data; /* default */
    if( i_data <= 8 )
    {
        msg_Warn( p_input, "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 );
   

    if( i_packet_length > i_data || i_packet_length <= 8)
    {
        msg_Warn( p_input, 
                  "truncated packet (missing %d bytes)",
                  i_packet_length - i_data  );
        return( -1 );
    }
    else if( i_packet_length < i_data )
    {
        *pi_used = i_packet_length;
    }

    if( i_packet_id == 0xff )
    {
        msg_Warn( p_input,
                  "receive MMS UDP pair timing" );
        return( MMS_PACKET_UDP_TIMING );
    }
    
    if( i_packet_id != p_access->i_header_packet_id_type &&
        i_packet_id != p_access->i_media_packet_id_type )
    {
        msg_Warn( p_input, "incorrect Packet Id Type (0x%x)", i_packet_id );
        return( -1 );
    }

    /* we now have a media or a header packet */
    p_packet = malloc( i_packet_length - 8 ); // don't bother with preheader
    memcpy( p_packet, p_data + 8, i_packet_length - 8 );
    
    if( i_packet_seq_num != p_access->i_packet_seq_num )
    {
        /* FIXME for udp could be just wrong order ? */
        msg_Warn( p_input, 
                  "detected packet lost (%d != %d)",
                  i_packet_seq_num,
                  p_access->i_packet_seq_num );
        p_access->i_packet_seq_num = i_packet_seq_num;
    }
    p_access->i_packet_seq_num++;

    if( i_packet_id == p_access->i_header_packet_id_type )
    {
        FREE( p_access->p_header );
        p_access->p_header = p_packet;
        p_access->i_header = i_packet_length - 8;
        msg_Dbg( p_input, 
                 "receive header packet (%d bytes)", 
                 i_packet_length - 8 );
1552

1553 1554 1555
        return( MMS_PACKET_HEADER );
    }
    else
1556
    {
1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573
        FREE( p_access->p_media );
        p_access->p_media = p_packet;
        p_access->i_media = i_packet_length - 8;
        p_access->i_media_used = 0;
        msg_Dbg( p_input, 
                 "receive media packet (%d bytes)",
                 i_packet_length - 8 );
        
        return( MMS_PACKET_MEDIA );
    }
}

static int mms_ReceivePacket( input_thread_t *p_input )
{
    access_t    *p_access = (access_t*)p_input->p_access_data;
    int i_packet_tcp_type;
    int i_packet_udp_type;
1574

1575 1576 1577
    for( ;; )
    {
        if( NetFillBuffer( p_input ) < 0 )
1578
        {
1579 1580
            msg_Warn( p_input, "cannot fill buffer" );
            continue;
1581
        }
1582 1583 1584 1585 1586 1587
        /* TODO udp */
        
        i_packet_tcp_type = -1;
        i_packet_udp_type = -1;
        
        if( p_access->i_buffer_tcp > 0 )
1588
        {
1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608
            int i_used;
            
            if( GetDWLE( p_access->buffer_tcp + 4 ) == 0xb00bface )
            {
                i_packet_tcp_type = 
                    mms_ParseCommand( p_input, 
                                      p_access->buffer_tcp,
                                      p_access->i_buffer_tcp,
                                      &i_used );

            }
            else
            {
                i_packet_tcp_type = 
                    mms_ParsePacket( p_input,
                                     p_access->buffer_tcp,
                                     p_access->i_buffer_tcp,
                                     &i_used );
            }
            if( i_used < MMS_BUFFER_SIZE )
1609
            {
1610 1611 1612
                memmove( p_access->buffer_tcp,
                         p_access->buffer_tcp + i_used,
                         MMS_BUFFER_SIZE - i_used );
1613
            }
1614
            p_access->i_buffer_tcp -= i_used;
1615
        }
1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626
        else if( p_access->i_buffer_udp > 0 )
        {
            int i_used;
#if 0
            if( GetDWLE( p_access->buffer_tcp + 4 ) == 0xb00bface )
            {
                i_packet_tcp_type = 
                    mms_ParseCommand( p_input, 
                                      p_access->buffer_tcp,
                                      p_access->i_buffer_tcp,
                                      &i_used );
1627

1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649
            }
            else
#endif
            {
                i_packet_tcp_type = 
                    mms_ParsePacket( p_input,
                                     p_access->buffer_udp,
                                     p_access->i_buffer_udp,
                                     &i_used );
            }
            if( i_used < MMS_BUFFER_SIZE )
            {
                memmove( p_access->buffer_udp,
                         p_access->buffer_udp + i_used,
                         MMS_BUFFER_SIZE - i_used );
            }
            p_access->i_buffer_udp -= i_used;
        }
        else
        {
            i_packet_udp_type = -1;
        }
1650

1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690
        if( i_packet_tcp_type == MMS_PACKET_CMD && 
                p_access->i_command == 0x1b )
        {
            mms_CommandSend( p_input, 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( input_thread_t *p_input )
{
    access_t    *p_access = (access_t*)p_input->p_access_data;

    for( ;; )
    {
        int i_used;
        int i_status;
        NetFillBuffer( p_input );

        i_status = mms_ParseCommand( p_input, 
                              p_access->buffer_tcp, 
                              p_access->i_buffer_tcp,
                              &i_used );
        if( i_used < MMS_BUFFER_SIZE )
        {
            memmove( p_access->buffer_tcp,
                     p_access->buffer_tcp + i_used,
                     MMS_BUFFER_SIZE - i_used );
        }
        p_access->i_buffer_tcp -= i_used;
1691

1692 1693 1694 1695 1696
        if( i_status < 0 )
        {
            return( -1 );
        }
        
1697 1698 1699 1700
        if( p_access->i_command == 0x1b )
        {
            mms_CommandSend( p_input, 0x1b, 0, 0, NULL, 0 );
        }
1701 1702 1703 1704 1705
        else
        {
            break;
        }
    }
1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773

    return( 0 );
}

#define MMS_RETRY_MAX       10
#define MMS_RETRY_SLEEP     50000

static int mms_CommandRead( input_thread_t *p_input, int i_command1, int i_command2 )
{
    access_t    *p_access = (access_t*)p_input->p_access_data;
    int i_count;
    int i_status;

    for( i_count = 0; i_count < MMS_RETRY_MAX; )
    {

        i_status = mms_ReceiveCommand( p_input );
        if( i_status < 0 || p_access->i_command == 0 )
        {
            i_count++;
            msleep( MMS_RETRY_SLEEP );
        }
        else if( i_command1 == 0 && i_command2 == 0)
        {
            return( 0 );
        }
        else if( p_access->i_command == i_command1 || p_access->i_command == i_command2 )
        {
            return( 0 );   
        }
        else
        {
            switch( p_access->i_command )
            {
                case 0x03:
                    msg_Warn( p_input, "socket closed by server" );
                    return( -1 );
                case 0x1e:
                    msg_Warn( p_input, "end of media stream" );
                    return( -1 );
                default:
                    break;
            }
        }
    }
    msg_Warn( p_input, "failed to receive command (abording)" );

    return( -1 );
}


static int mms_HeaderMediaRead( input_thread_t *p_input, int i_type )
{
    access_t    *p_access = (access_t*)p_input->p_access_data;
    int         i_count;
    
    for( i_count = 0; i_count < MMS_RETRY_MAX; )
    {
        int i_status;

        i_status = mms_ReceivePacket( p_input );
        if( i_status < 0 )
        {
            i_count++;
            msg_Warn( p_input, 
                      "cannot receive header (%d/%d)", i_count, MMS_RETRY_MAX );
            msleep( MMS_RETRY_SLEEP );
        }
1774
        else if( i_status == i_type || i_type == MMS_PACKET_ANY )
1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805
        {
            return( 0 );
        }
        else if( i_status == MMS_PACKET_CMD )
        {
            switch( p_access->i_command )
            {
                case 0x03:
                    msg_Warn( p_input, "socket closed by server" );
                    return( -1 );
                case 0x1e:
                    msg_Warn( p_input, "end of media stream" );
                    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_input, 
                             "reinitialization needed --> unsupported" );
                    return( -1 );
                default:
                    break;
            }
        }</