/*****************************************************************************
 * mms.h: MMS access plug-in
 *****************************************************************************
 * Copyright (C) 2001, 2002 VideoLAN
 * $Id: mms.h,v 1.3 2002/11/13 20:28:13 fenrir Exp $
 *
 * 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.
 *****************************************************************************/

/* url: [/]host[:port][/path] */
typedef struct url_s
{
    char    *psz_server_addr;
    int     i_server_port;
    char    *psz_path;

    // private
    char *psz_private;
} url_t;

#define FREE( p ) if( p ) free( p )


#define MMS_PROTO_AUTO  0
#define MMS_PROTO_TCP   1
#define MMS_PROTO_UDP   2

#define MMS_PACKET_CMD          0
#define MMS_PACKET_HEADER       1
#define MMS_PACKET_MEDIA        2
#define MMS_PACKET_UDP_TIMING    3
    

#define MMS_STREAM_VIDEO    0x0001
#define MMS_STREAM_AUDIO    0x0002
#define MMS_STREAM_UNKNOWN  0xffff


#define MMS_CMD_HEADERSIZE  48

typedef struct mms_stream_s
{
    int i_id;       // 1 -> 127
    int i_cat;      // MMS_STREAM_VIDEO, MMS_STREAM_AUDIO
    int i_bitrate;  // -1 if unknown
    int i_selected;
    
} mms_stream_t;

    
typedef struct access_s
{
    int                 i_proto;        // MMS_PROTO_TCP, MMS_PROTO_UDP
    input_socket_t      socket_server;  // TCP socket for communication with server
    input_socket_t      socket_data;    // Optional UDP socket for data(media/header packet) 
                                        // send by server

    url_t   url;                        // connect to this server
    
    mms_stream_t        stream[128];    //in asf never more than 1->127 streams
    
    off_t               i_pos;          // position of next byte to be read
    
    /* data necessary to send data to server */
    guid_t      guid;
    int         i_command_level;
    int         i_seq_num;
    uint32_t    i_header_packet_id_type;
    uint32_t    i_media_packet_id_type;

    int         i_packet_seq_num;
    
    uint8_t     *p_cmd; // latest command read
    int         i_cmd;  // allocated at the begining

    uint8_t     *p_header; // allocated by mms_ReadPacket
    int         i_header;
    
    uint8_t     *p_media;  // allocated by mms_ReadPacket
    int         i_media;
    int         i_media_used;
    
    // extracted informations
    int         i_command;

    // from 0x01 answer (not yet set)
    char        *psz_server_version;
    char        *psz_tool_version;
    char        *psz_update_player_url;
    char        *psz_encryption_type;

    // from 0x06 answer
    uint32_t    i_flags_broadcast;
    uint32_t    i_media_length;
    int         i_packet_length;
    uint32_t    i_packet_count;
    int         i_max_bit_rate;
    int         i_header_size;
    
} access_t;


static inline uint16_t GetWLE( u8 *p_buff )
{
    return( (p_buff[0]) + ( p_buff[1] <<8 ) );
}

static inline uint32_t GetDWLE( u8 *p_buff )
{
    return( p_buff[0] + ( p_buff[1] <<8 ) +
            ( p_buff[2] <<16 ) + ( p_buff[3] <<24 ) );
}

