var.c

uclinux 下的vlc播放器源代码

    for( i = 0; i <  t->i_seekpoint; i++ )
    {
        vlc_value_t text;
        val.i_int = i;

        if( t->seekpoint[i]->psz_name == NULL ||
            *t->seekpoint[i]->psz_name == '\0' )
        {
            /* Default value */
            asprintf( &text.psz_string, _("Chapter %i"),
                      i + p_input->i_seekpoint_offset );
        }
        else
        {
            text.psz_string = strdup( t->seekpoint[i]->psz_name );
        }

        var_Change( p_input, "chapter", VLC_VAR_ADDCHOICE, &val, &text );
        if( text.psz_string ) free( text.psz_string );
    }
}

/*****************************************************************************
 * input_ConfigVarInit:
 *  Create all config object variables
 *****************************************************************************/
void input_ConfigVarInit ( input_thread_t *p_input )
{
    vlc_value_t val;

    /* Create Object Variables for private use only */
    var_Create( p_input, "video", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
    var_Create( p_input, "audio", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
    var_Create( p_input, "spu", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );

    var_Create( p_input, "audio-track", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
    var_Create( p_input, "sub-track", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );

    var_Create( p_input, "audio-language", VLC_VAR_STRING|VLC_VAR_DOINHERIT );
    var_Create( p_input, "sub-language", VLC_VAR_STRING|VLC_VAR_DOINHERIT );

    var_Create( p_input, "audio-track-id", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
    var_Create( p_input, "sub-track-id", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );

    var_Create( p_input, "sub-file", VLC_VAR_FILE | VLC_VAR_DOINHERIT );
    var_Create( p_input, "sub-autodetect-file", VLC_VAR_BOOL |
                VLC_VAR_DOINHERIT );
    var_Create( p_input, "sub-autodetect-path", VLC_VAR_STRING |
                VLC_VAR_DOINHERIT );
    var_Create( p_input, "sub-autodetect-fuzzy", VLC_VAR_INTEGER |
                VLC_VAR_DOINHERIT );

    var_Create( p_input, "sout", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
    var_Create( p_input, "sout-all",   VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
    var_Create( p_input, "sout-audio", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
    var_Create( p_input, "sout-video", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
    var_Create( p_input, "sout-spu", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
    var_Create( p_input, "sout-keep",  VLC_VAR_BOOL | VLC_VAR_DOINHERIT );

    var_Create( p_input, "input-repeat", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );

    var_Create( p_input, "start-time", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
    var_Create( p_input, "stop-time", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );

    var_Create( p_input, "minimize-threads", VLC_VAR_BOOL|VLC_VAR_DOINHERIT );

    var_Create( p_input, "demuxed-id3", VLC_VAR_BOOL ); /* FIXME beurk */
    val.b_bool = VLC_FALSE;
    var_Change( p_input, "demuxed-id3", VLC_VAR_SETVALUE, &val, NULL );

    var_Create( p_input, "audio-desync", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );

    var_Create( p_input, "cr-average", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
    var_Create( p_input, "clock-synchro", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT);

    var_Create( p_input, "seekable", VLC_VAR_BOOL );
    val.b_bool = VLC_TRUE; /* Fixed later*/
    var_Change( p_input, "seekable", VLC_VAR_SETVALUE, &val, NULL );

    var_Create( p_input, "input-slave", VLC_VAR_STRING | VLC_VAR_DOINHERIT );

    /* */
    var_Create( p_input, "access-filter", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
    var_Create( p_input, "access", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
    var_Create( p_input, "demux", VLC_VAR_STRING | VLC_VAR_DOINHERIT );

    /* Meta */
    var_Create( p_input, "meta-title", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
    var_Create( p_input, "meta-author", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
    var_Create( p_input, "meta-artist", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
    var_Create( p_input, "meta-genre", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
    var_Create( p_input, "meta-copyright", VLC_VAR_STRING | VLC_VAR_DOINHERIT);
    var_Create( p_input, "meta-description", VLC_VAR_STRING|VLC_VAR_DOINHERIT);
    var_Create( p_input, "meta-date", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
    var_Create( p_input, "meta-url", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
}

/*****************************************************************************
 * All Callbacks:
 *****************************************************************************/
static int StateCallback( vlc_object_t *p_this, char const *psz_cmd,
                          vlc_value_t oldval, vlc_value_t newval,
                          void *p_data )
{
    input_thread_t *p_input = (input_thread_t*)p_this;


    if( newval.i_int == PLAYING_S || newval.i_int == PAUSE_S )
    {
        input_ControlPush( p_input, INPUT_CONTROL_SET_STATE, &newval );
        return VLC_SUCCESS;
    }

    return VLC_EGENERIC;
}

static int RateCallback( vlc_object_t *p_this, char const *psz_cmd,
                         vlc_value_t oldval, vlc_value_t newval, void *p_data )
{
    input_thread_t *p_input = (input_thread_t*)p_this;

    /* Problem with this way: the "rate" variable is update after the input thread do the change */
    if( !strcmp( psz_cmd, "rate-slower" ) )
    {
        input_ControlPush( p_input, INPUT_CONTROL_SET_RATE_SLOWER, NULL );
    }
    else if( !strcmp( psz_cmd, "rate-faster" ) )
    {
        input_ControlPush( p_input, INPUT_CONTROL_SET_RATE_FASTER, NULL );
    }
    else
    {
        input_ControlPush( p_input, INPUT_CONTROL_SET_RATE, &newval );
    }

    return VLC_SUCCESS;
}

static int PositionCallback( vlc_object_t *p_this, char const *psz_cmd,
                             vlc_value_t oldval, vlc_value_t newval,
                             void *p_data )
{
    input_thread_t *p_input = (input_thread_t*)p_this;
    vlc_value_t val, length;

    if( !strcmp( psz_cmd, "position-offset" ) )
    {
        input_ControlPush( p_input, INPUT_CONTROL_SET_POSITION_OFFSET, &newval );

        val.f_float = var_GetFloat( p_input, "position" ) + newval.f_float;
        if( val.f_float < 0.0 ) val.f_float = 0.0;
        if( val.f_float > 1.0 ) val.f_float = 1.0;
        var_Change( p_input, "position", VLC_VAR_SETVALUE, &val, NULL );
    }
    else
    {
        val.f_float = newval.f_float;
        input_ControlPush( p_input, INPUT_CONTROL_SET_POSITION, &newval );
    }

    /* Update "position" for better intf behavour */
    var_Get( p_input, "length", &length );
    if( length.i_time > 0 && val.f_float >= 0.0 && val.f_float <= 1.0 )
    {
        val.i_time = length.i_time * val.f_float;
        var_Change( p_input, "time", VLC_VAR_SETVALUE, &val, NULL );
    }

    return VLC_SUCCESS;
}

static int TimeCallback( vlc_object_t *p_this, char const *psz_cmd,
                         vlc_value_t oldval, vlc_value_t newval, void *p_data )
{
    input_thread_t *p_input = (input_thread_t*)p_this;
    vlc_value_t val, length;

    if( !strcmp( psz_cmd, "time-offset" ) )
    {
        input_ControlPush( p_input, INPUT_CONTROL_SET_TIME_OFFSET, &newval );
        val.i_time = var_GetTime( p_input, "time" ) + newval.i_time;
        if( val.i_time < 0 ) val.i_time = 0;
        /* TODO maybe test against i_length ? */
        var_Change( p_input, "time", VLC_VAR_SETVALUE, &val, NULL );
    }
    else
    {
        val.i_time = newval.i_time;
        input_ControlPush( p_input, INPUT_CONTROL_SET_TIME, &newval );
    }

    /* Update "position" for better intf behavour */
    var_Get( p_input, "length", &length );
    if( length.i_time > 0 && val.i_time >= 0 && val.i_time <= length.i_time )
    {
        val.f_float = (double)val.i_time/(double)length.i_time;
        var_Change( p_input, "position", VLC_VAR_SETVALUE, &val, NULL );
    }

    return VLC_SUCCESS;
}

static int ProgramCallback( vlc_object_t *p_this, char const *psz_cmd,
                            vlc_value_t oldval, vlc_value_t newval,
                            void *p_data )
{
    input_thread_t *p_input = (input_thread_t*)p_this;

    input_ControlPush( p_input, INPUT_CONTROL_SET_PROGRAM, &newval );

    return VLC_SUCCESS;
}

static int TitleCallback( vlc_object_t *p_this, char const *psz_cmd,
                          vlc_value_t oldval, vlc_value_t newval,
                          void *p_data )
{
    input_thread_t *p_input = (input_thread_t*)p_this;
    vlc_value_t val, count;

    if( !strcmp( psz_cmd, "next-title" ) )
    {
        input_ControlPush( p_input, INPUT_CONTROL_SET_TITLE_NEXT, NULL );

        val.i_int = var_GetInteger( p_input, "title" ) + 1;
        var_Change( p_input, "title", VLC_VAR_CHOICESCOUNT, &count, NULL );
        if( val.i_int < count.i_int )
            var_Change( p_input, "title", VLC_VAR_SETVALUE, &val, NULL );
    }
    else if( !strcmp( psz_cmd, "prev-title" ) )
    {
        input_ControlPush( p_input, INPUT_CONTROL_SET_TITLE_PREV, NULL );

        val.i_int = var_GetInteger( p_input, "title" ) - 1;
        if( val.i_int >= 0 )
            var_Change( p_input, "title", VLC_VAR_SETVALUE, &val, NULL );
    }
    else
    {
        input_ControlPush( p_input, INPUT_CONTROL_SET_TITLE, &newval );
    }

    return VLC_SUCCESS;
}

static int SeekpointCallback( vlc_object_t *p_this, char const *psz_cmd,
                              vlc_value_t oldval, vlc_value_t newval,
                              void *p_data )
{
    input_thread_t *p_input = (input_thread_t*)p_this;
    vlc_value_t val, count;

    if( !strcmp( psz_cmd, "next-chapter" ) )
    {
        input_ControlPush( p_input, INPUT_CONTROL_SET_SEEKPOINT_NEXT, NULL );

        val.i_int = var_GetInteger( p_input, "chapter" ) + 1;
        var_Change( p_input, "chapter", VLC_VAR_CHOICESCOUNT, &count, NULL );
        if( val.i_int < count.i_int )
            var_Change( p_input, "chapter", VLC_VAR_SETVALUE, &val, NULL );
    }
    else if( !strcmp( psz_cmd, "prev-chapter" ) )
    {
        input_ControlPush( p_input, INPUT_CONTROL_SET_SEEKPOINT_PREV, NULL );

        val.i_int = var_GetInteger( p_input, "chapter" ) - 1;
        if( val.i_int >= 0 )
            var_Change( p_input, "chapter", VLC_VAR_SETVALUE, &val, NULL );
    }
    else
    {
        input_ControlPush( p_input, INPUT_CONTROL_SET_SEEKPOINT, &newval );
    }

    return VLC_SUCCESS;
}

static int NavigationCallback( vlc_object_t *p_this, char const *psz_cmd,
                               vlc_value_t oldval, vlc_value_t newval,
                               void *p_data )
{
    input_thread_t *p_input = (input_thread_t*)p_this;
    vlc_value_t     val;

    /* Issue a title change */
    val.i_int = (int)p_data;
    input_ControlPush( p_input, INPUT_CONTROL_SET_TITLE, &val );

    var_Change( p_input, "title", VLC_VAR_SETVALUE, &val, NULL );

    /* And a chapter change */
    input_ControlPush( p_input, INPUT_CONTROL_SET_SEEKPOINT, &newval );

    var_Change( p_input, "chapter", VLC_VAR_SETVALUE, &newval, NULL );

    return VLC_SUCCESS;
}

static int ESCallback( vlc_object_t *p_this, char const *psz_cmd,
                       vlc_value_t oldval, vlc_value_t newval, void *p_data )
{
    input_thread_t *p_input = (input_thread_t*)p_this;

    if( newval.i_int < 0 )
    {
        vlc_value_t v;
        /* Hack */
        if( !strcmp( psz_cmd, "audio-es" ) )
            v.i_int = -AUDIO_ES;
        else if( !strcmp( psz_cmd, "video-es" ) )
            v.i_int = -VIDEO_ES;
        else if( !strcmp( psz_cmd, "spu-es" ) )
            v.i_int = -SPU_ES;
        else
            v.i_int = 0;
        if( v.i_int != 0 )
            input_ControlPush( p_input, INPUT_CONTROL_SET_ES, &v );
    }
    else
    {
        input_ControlPush( p_input, INPUT_CONTROL_SET_ES, &newval );
    }

    return VLC_SUCCESS;
}

static int EsDelayCallback ( vlc_object_t *p_this, char const *psz_cmd,
                             vlc_value_t oldval, vlc_value_t newval, void *p )
{
    input_thread_t *p_input = (input_thread_t*)p_this;


    if( !strcmp( psz_cmd, "audio-delay" ) )
    {
        /*Change i_pts_delay to make sure es are decoded in time*/
        if (newval.i_int < 0 || oldval.i_int < 0 )
        {
            p_input->i_pts_delay -= newval.i_int - oldval.i_int;
        }
        input_ControlPush( p_input, INPUT_CONTROL_SET_AUDIO_DELAY, &newval );
    }
    else if( !strcmp( psz_cmd, "spu-delay" ) )
        input_ControlPush( p_input, INPUT_CONTROL_SET_SPU_DELAY, &newval );
    return VLC_SUCCESS;
}

static int BookmarkCallback( vlc_object_t *p_this, char const *psz_cmd,
                             vlc_value_t oldval, vlc_value_t newval,
                             void *p_data )
{
    input_thread_t *p_input = (input_thread_t*)p_this;

    input_ControlPush( p_input, INPUT_CONTROL_SET_BOOKMARK, &newval );

    return VLC_SUCCESS;
}