The VideoLAN Forums

Posted: **03 May 2011 10:31**

I try to find way to zoom video via http interface. But I got some problem with it.

As I see in functions.js:

function hotkey( str )
{
    /* Use hotkey name (without the "key-" part) as the argument to simulate a hotkey press */
    loadXMLDoc( 'requests/status.xml?command=key&val='+str, parse_status );
}

there is function to emulate hotkey press. I add two new buttons to main part of web interface:

Code: Select all

    <button id="btn_zoom_double" onclick="hotkey('zoom-double');" onmouseover="button_over(this);" onmouseout="button_out(this);" title="Zoom Double" >
      <img src="images/zoom_double.png" alt="Zoom Double" />
      <span class="btn_text">Zoom Double</span>
    </button>
    <button id="btn_zoom_half" onclick="hotkey('zoom-half');" onmouseover="button_over(this);" onmouseout="button_out(this);" title="Zoom Half" >
      <img src="images/zoom_half.png" alt="Zoom Half" />
      <span class="btn_text">Zoom Half</span>
    </button>

but its do nothing: when I press this buttons in web interface, in logs appears messages:

[0x927b9b8] http interface warning: vlc_var_get called without an object
[0x927b9b8] http interface warning: vlc_var_set called without an object

and zoom of video not changes.

Is it possible to zoom video via http interface? I'll do it wrong?

Posted: **05 May 2011 15:29**

Posted: **25 May 2011 16:14**

I try same on VLC 1.1.9 and got another errors:

[0x84bfd8c] oldhttp interface warning: invalid VLC_OBJECT_LIBVLC variable type 0 (key-zoom-double)
[0x84bfd8c] oldhttp interface warning: invalid VLC_OBJECT_LIBVLC variable type 0 (key-zoom-half)

If you developer guys can tell me where problem can be I can fix it by myself

Sure I found place where error appears, its from rpn.c

Code: Select all

            vlc_object_t *p_object = GetVLCObject( p_intf, psz_object,
                                                   &b_need_release );

            if( p_object != NULL )
            {
                vlc_value_t val;
                int i_type;

                i_type = var_Type( p_object, psz_variable );
                var_Get( p_object, psz_variable, &val );

                switch( i_type & VLC_VAR_TYPE )
                {
                case VLC_VAR_BOOL:
                    SSPushN( st, val.b_bool );
                    break;
                case VLC_VAR_INTEGER:
                case VLC_VAR_HOTKEY:
                    SSPushN( st, val.i_int );
                    break;
                case VLC_VAR_STRING:
                case VLC_VAR_MODULE:
                case VLC_VAR_FILE:
                case VLC_VAR_DIRECTORY:
                case VLC_VAR_VARIABLE:
                    SSPush( st, val.psz_string );
                    free( val.psz_string );
                    break;
                case VLC_VAR_FLOAT:
                {
                    char psz_value[20];
                    lldiv_t value = lldiv( val.f_float * 1000000, 1000000 );
                    snprintf( psz_value, sizeof(psz_value), "%lld.%06u",
                                    value.quot, (unsigned int)value.rem );
                    SSPush( st, psz_value );
                    break;
                }
                default:
                    msg_Warn( p_intf, "invalid %s variable type %d (%s)",
                              psz_object, i_type & VLC_VAR_TYPE, psz_variable );
                    SSPush( st, "" );
                }
            }

I expect type VLC_VAR_HOTKEY but its not. May be I shall use another javascript function or fix something in xml-s? Cant understand your architecture

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Hotkeys via HTTP interface

Hotkeys via HTTP interface

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Re: Hotkeys via HTTP interface