rc.c

uclinux 下的vlc播放器源代码

    }
    vlc_mutex_destroy( &p_intf->p_sys->status_lock );
    free( p_intf->p_sys );
}

/*****************************************************************************
 * RegisterCallbacks: Register callbacks to dynamic variables
 *****************************************************************************/
static void RegisterCallbacks( intf_thread_t *p_intf )
{
    /* Register commands that will be cleaned up upon object destruction */
    var_Create( p_intf, "quit", VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "quit", Quit, NULL );
    var_Create( p_intf, "intf", VLC_VAR_STRING | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "intf", Intf, NULL );

    var_Create( p_intf, "add", VLC_VAR_STRING | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "add", Playlist, NULL );
    var_Create( p_intf, "enqueue", VLC_VAR_STRING | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "enqueue", Playlist, NULL );
    var_Create( p_intf, "playlist", VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "playlist", Playlist, NULL );
    var_Create( p_intf, "play", VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "play", Playlist, NULL );
    var_Create( p_intf, "stop", VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "stop", Playlist, NULL );
    var_Create( p_intf, "clear", VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "clear", Playlist, NULL );
    var_Create( p_intf, "prev", VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "prev", Playlist, NULL );
    var_Create( p_intf, "next", VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "next", Playlist, NULL );
    var_Create( p_intf, "goto", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "goto", Playlist, NULL );
    var_Create( p_intf, "status", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "status", Playlist, NULL );

    /* marquee on the fly items */
    var_Create( p_intf, "marq-marquee", VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "marq-marquee", Other, NULL );
    var_Create( p_intf, "marq-x", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "marq-x", Other, NULL );
    var_Create( p_intf, "marq-y", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "marq-y", Other, NULL );
    var_Create( p_intf, "marq-position", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "marq-position", Other, NULL );
    var_Create( p_intf, "marq-color", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "marq-color", Other, NULL );
    var_Create( p_intf, "marq-opacity", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "marq-opacity", Other, NULL );
    var_Create( p_intf, "marq-timeout", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "marq-timeout", Other, NULL );
    var_Create( p_intf, "marq-size", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "marq-size", Other, NULL );

    var_Create( p_intf, "mosaic-alpha", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "mosaic-alpha", Other, NULL );
    var_Create( p_intf, "mosaic-height", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "mosaic-height", Other, NULL );
    var_Create( p_intf, "mosaic-width", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "mosaic-width", Other, NULL );
    var_Create( p_intf, "mosaic-xoffset", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "mosaic-xoffset", Other, NULL );
    var_Create( p_intf, "mosaic-yoffset", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "mosaic-yoffset", Other, NULL );
    var_Create( p_intf, "mosaic-align", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "mosaic-align", Other, NULL );
    var_Create( p_intf, "mosaic-vborder", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "mosaic-vborder", Other, NULL );
    var_Create( p_intf, "mosaic-hborder", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "mosaic-hborder", Other, NULL );
    var_Create( p_intf, "mosaic-position",
                     VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "mosaic-position", Other, NULL );
    var_Create( p_intf, "mosaic-rows", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "mosaic-rows", Other, NULL );
    var_Create( p_intf, "mosaic-cols", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "mosaic-cols", Other, NULL );
    var_Create( p_intf, "mosaic-keep-aspect-ratio",
                     VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "mosaic-keep-aspect-ratio", Other, NULL );

    /* time on the fly items */
    var_Create( p_intf, "time-format", VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "time-format", Other, NULL );
    var_Create( p_intf, "time-x", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "time-x", Other, NULL );
    var_Create( p_intf, "time-y", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "time-y", Other, NULL );
    var_Create( p_intf, "time-position", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "time-position", Other, NULL );
    var_Create( p_intf, "time-color", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "time-color", Other, NULL );
    var_Create( p_intf, "time-opacity", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "time-opacity", Other, NULL );
    var_Create( p_intf, "time-size", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "time-size", Other, NULL );

    /* logo on the fly items */
    var_Create( p_intf, "logo-file", VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "logo-file", Other, NULL );
    var_Create( p_intf, "logo-x", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "logo-x", Other, NULL );
    var_Create( p_intf, "logo-y", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "logo-y", Other, NULL );
    var_Create( p_intf, "logo-position", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "logo-position", Other, NULL );
    var_Create( p_intf, "logo-transparency", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "logo-transparency", Other, NULL );

    /* OSD menu commands */
    var_Create( p_intf, "menu", VLC_VAR_STRING | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "menu", Menu, NULL );

    /* DVD commands */
    var_Create( p_intf, "pause", VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "pause", Input, NULL );
    var_Create( p_intf, "seek", VLC_VAR_INTEGER | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "seek", Input, NULL );
    var_Create( p_intf, "title", VLC_VAR_STRING | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "title", Input, NULL );
    var_Create( p_intf, "title_n", VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "title_n", Input, NULL );
    var_Create( p_intf, "title_p", VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "title_p", Input, NULL );
    var_Create( p_intf, "chapter", VLC_VAR_STRING | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "chapter", Input, NULL );
    var_Create( p_intf, "chapter_n", VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "chapter_n", Input, NULL );
    var_Create( p_intf, "chapter_p", VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "chapter_p", Input, NULL );

    var_Create( p_intf, "fastforward", VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "fastforward", Input, NULL );
    var_Create( p_intf, "rewind", VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "rewind", Input, NULL );
    var_Create( p_intf, "faster", VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "faster", Input, NULL );
    var_Create( p_intf, "slower", VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "slower", Input, NULL );
    var_Create( p_intf, "normal", VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "normal", Input, NULL );

    var_Create( p_intf, "atrack", VLC_VAR_STRING | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "atrack", Input, NULL );
    var_Create( p_intf, "vtrack", VLC_VAR_STRING | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "vtrack", Input, NULL );
    var_Create( p_intf, "strack", VLC_VAR_STRING | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "strack", Input, NULL );

    /* video commands */
    var_Create( p_intf, "vratio", VLC_VAR_STRING | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "vratio", VideoConfig, NULL );
    var_Create( p_intf, "vcrop", VLC_VAR_STRING | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "vcrop", VideoConfig, NULL );
    var_Create( p_intf, "vzoom", VLC_VAR_STRING | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "vzoom", VideoConfig, NULL );

    /* audio commands */
    var_Create( p_intf, "volume", VLC_VAR_STRING | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "volume", Volume, NULL );
    var_Create( p_intf, "volup", VLC_VAR_STRING | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "volup", VolumeMove, NULL );
    var_Create( p_intf, "voldown", VLC_VAR_STRING | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "voldown", VolumeMove, NULL );
    var_Create( p_intf, "adev", VLC_VAR_STRING | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "adev", AudioConfig, NULL );
    var_Create( p_intf, "achan", VLC_VAR_STRING | VLC_VAR_ISCOMMAND );
    var_AddCallback( p_intf, "achan", AudioConfig, NULL );
}

/*****************************************************************************
 * Run: rc thread
 *****************************************************************************
 * This part of the interface is in a separate thread so that we can call
 * exec() from within it without annoying the rest of the program.
 *****************************************************************************/
static void Run( intf_thread_t *p_intf )
{
    input_thread_t * p_input;
    playlist_t *     p_playlist;

    char       p_buffer[ MAX_LINE_LENGTH + 1 ];
    vlc_bool_t b_showpos = config_GetInt( p_intf, "rc-show-pos" );
    vlc_bool_t b_longhelp = VLC_FALSE;

    int        i_size = 0;
    int        i_oldpos = 0;
    int        i_newpos;

    p_buffer[0] = 0;
    p_input = NULL;
    p_playlist = NULL;

    /* Register commands that will be cleaned up upon object destruction */
    RegisterCallbacks( p_intf );

    /* status callbacks */
    /* Listen to audio volume updates */
    var_AddCallback( p_intf->p_vlc, "volume-change", VolumeChanged, p_intf );

#ifdef WIN32
    /* Get the file descriptor of the console input */
    p_intf->p_sys->hConsoleIn = GetStdHandle(STD_INPUT_HANDLE);
    if( p_intf->p_sys->hConsoleIn == INVALID_HANDLE_VALUE )
    {
        msg_Err( p_intf, "couldn't find user input handle" );
        p_intf->b_die = VLC_TRUE;
    }
#endif

    while( !p_intf->b_die )
    {
        char *psz_cmd, *psz_arg;
        vlc_bool_t b_complete;

        if( p_intf->p_sys->pi_socket_listen != NULL &&
            p_intf->p_sys->i_socket == -1 )
        {
            p_intf->p_sys->i_socket =
                net_Accept( p_intf, p_intf->p_sys->pi_socket_listen, 0 );
        }

        b_complete = ReadCommand( p_intf, p_buffer, &i_size );

        /* Manage the input part */
        if( p_input == NULL )
        {
            if( p_playlist )
            {
                p_input = vlc_object_find( p_playlist, VLC_OBJECT_INPUT,
                                                       FIND_CHILD );
            }
            else
            {
                p_input = vlc_object_find( p_intf, VLC_OBJECT_INPUT,
                                                   FIND_ANYWHERE );
                if( p_input )
                {
                    p_playlist = vlc_object_find( p_input, VLC_OBJECT_PLAYLIST,
                                                           FIND_PARENT );
                }
            }
            /* New input has been registered */
            if( p_input )
            {
                if( !p_input->b_dead || !p_input->b_die )
                {
                    msg_rc( STATUS_CHANGE "( new input: %s )", p_input->input.p_item->psz_uri );
                    msg_rc( STATUS_CHANGE "( audio volume: %d )", config_GetInt( p_intf, "volume" ));
                }
                var_AddCallback( p_input, "state", StateChanged, p_intf );
                var_AddCallback( p_input, "rate-faster", RateChanged, p_intf );
                var_AddCallback( p_input, "rate-slower", RateChanged, p_intf );
                var_AddCallback( p_input, "rate", RateChanged, p_intf );
                var_AddCallback( p_input, "time-offset", TimeOffsetChanged, p_intf );
            }
        }
        else if( p_input->b_dead )
        {
            var_DelCallback( p_input, "state", StateChanged, p_intf );
            var_DelCallback( p_input, "rate-faster", RateChanged, p_intf );
            var_DelCallback( p_input, "rate-slower", RateChanged, p_intf );
            var_DelCallback( p_input, "rate", RateChanged, p_intf );
            var_DelCallback( p_input, "time-offset", TimeOffsetChanged, p_intf );
            vlc_object_release( p_input );
            p_input = NULL;

            if( p_playlist )
            {
                vlc_mutex_lock( &p_playlist->object_lock );
                p_intf->p_sys->i_last_state = (int) PLAYLIST_STOPPED;
                msg_rc( STATUS_CHANGE "( stop state: 0 )" );
                vlc_mutex_unlock( &p_playlist->object_lock );
            }
        }

        if( (p_input != NULL) && !p_input->b_dead && !p_input->b_die &&
            (p_playlist != NULL) )
        {
            vlc_mutex_lock( &p_playlist->object_lock );
            if( (p_intf->p_sys->i_last_state != p_playlist->status.i_status) &&
                (p_playlist->status.i_status == PLAYLIST_STOPPED) )
            {
                p_intf->p_sys->i_last_state = PLAYLIST_STOPPED;
                msg_rc( STATUS_CHANGE "( stop state: 0 )" );
            }
            else if( (p_intf->p_sys->i_last_state != p_playlist->status.i_status) &&
                (p_playlist->status.i_status == PLAYLIST_RUNNING) )
            {
                p_intf->p_sys->i_last_state = p_playlist->status.i_status;
                msg_rc( STATUS_CHANGE "( play state: 1 )" );
            }
            else if( (p_intf->p_sys->i_last_state != p_playlist->status.i_status) &&
                (p_playlist->status.i_status == PLAYLIST_PAUSED) )
            {
                p_intf->p_sys->i_last_state = p_playlist->status.i_status;
                msg_rc( STATUS_CHANGE "( pause state: 2 )" );
            }
            vlc_mutex_unlock( &p_playlist->object_lock );
        }

        if( p_input && b_showpos )
        {
            i_newpos = 100 * var_GetFloat( p_input, "position" );
            if( i_oldpos != i_newpos )
            {
                i_oldpos = i_newpos;
                msg_rc( "pos: %d%%", i_newpos );
            }
        }

        /* Is there something to do? */
        if( !b_complete ) continue;


        /* Skip heading spaces */
        psz_cmd = p_buffer;
        while( *psz_cmd == ' ' )
        {
            psz_cmd++;
        }

        /* Split psz_cmd at the first space and make sure that
         * psz_arg is valid */
        psz_arg = strchr( psz_cmd, ' ' );
        if( psz_arg )
        {
            *psz_arg++ = 0;
            while( *psz_arg == ' ' )
            {
                psz_arg++;
            }
        }
        else
        {
            psz_arg = "";
        }

        /* If the user typed a registered local command, try it */
        if( var_Type( p_intf, psz_cmd ) & VLC_VAR_ISCOMMAND )
        {
            vlc_value_t val;
            int i_ret;

            val.psz_string = psz_arg;
            i_ret = var_Set( p_intf, psz_cmd, val );
            msg_rc( "%s: returned %i (%s)",
                    psz_cmd, i_ret, vlc_error( i_ret ) );
        }
        /* Or maybe it's a global command */
        else if( var_Type( p_intf->p_libvlc, psz_cmd ) & VLC_VAR_ISCOMMAND )
        {
            vlc_value_t val;
            int i_ret;

            val.psz_string = psz_arg;
            /* FIXME: it's a global command, but we should pass the
             * local object as an argument, not p_intf->p_libvlc. */
            i_ret = var_Set( p_intf->p_libvlc, psz_cmd, val );
            if( i_ret != 0 )