1 /*****************************************************************************
2 * xvideo.c : Xvideo plugin for vlc
3 *****************************************************************************
4 * Copyright (C) 1998-2001 VideoLAN
5 * $Id: xvideo.c,v 1.16 2002/07/02 19:14:59 sam Exp $
7 * Authors: Shane Harper <shanegh@optusnet.com.au>
8 * Vincent Seguin <seguin@via.ecp.fr>
9 * Samuel Hocevar <sam@zoy.org>
10 * David Kennedy <dkennedy@tinytoad.com>
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
25 *****************************************************************************/
27 /*****************************************************************************
29 *****************************************************************************/
30 #include <stdlib.h> /* malloc(), free() */
31 #include <string.h> /* strerror() */
37 /*****************************************************************************
38 * Building configuration tree
39 *****************************************************************************/
40 #define ADAPTOR_TEXT N_("XVideo adaptor number")
41 #define ADAPTOR_LONGTEXT N_( \
42 "If you graphics card provides several adaptors, this option allows you " \
43 "to choose which one will be used (you shouldn't have to change this).")
45 #define ALT_FS_TEXT N_("alternate fullscreen method")
46 #define ALT_FS_LONGTEXT N_( \
47 "There are two ways to make a fullscreen window, unfortunately each one " \
48 "has its drawbacks.\n" \
49 "1) Let the window manager handle your fullscreen window (default). But " \
50 "things like taskbars will likely show on top of the video.\n" \
51 "2) Completly bypass the window manager, but then nothing will be able " \
52 "to show on top of the video.")
54 #define DISPLAY_TEXT N_("X11 display name")
55 #define DISPLAY_LONGTEXT N_( \
56 "Specify the X11 hardware display you want to use. By default vlc will " \
57 "use the value of the DISPLAY environment variable.")
59 #define CHROMA_TEXT N_("XVimage chroma format")
60 #define CHROMA_LONGTEXT N_( \
61 "Force the XVideo renderer to use a specific chroma format instead of " \
62 "trying to improve performances by using the most efficient one.")
64 #define DRAWABLE_TEXT N_("X11 drawable")
65 #define DRAWABLE_LONGTEXT N_( \
66 "Specify a X11 drawable to use instead of opening a new window. This " \
67 "option is DANGEROUS, use with care.")
69 #define SHM_TEXT N_("use shared memory")
70 #define SHM_LONGTEXT N_( \
71 "Use shared memory to communicate between vlc and the X server.")
74 ADD_CATEGORY_HINT( N_("Miscellaneous"), NULL )
75 ADD_STRING ( "xvideo-display", NULL, NULL, DISPLAY_TEXT, DISPLAY_LONGTEXT )
76 ADD_INTEGER ( "xvideo-adaptor", -1, NULL, ADAPTOR_TEXT, ADAPTOR_LONGTEXT )
77 ADD_BOOL ( "xvideo-altfullscreen", 0, NULL, ALT_FS_TEXT, ALT_FS_LONGTEXT )
78 ADD_STRING ( "xvideo-chroma", NULL, NULL, CHROMA_TEXT, CHROMA_LONGTEXT )
79 ADD_INTEGER ( "xvideo-drawable", -1, NULL, DRAWABLE_TEXT, DRAWABLE_LONGTEXT )
81 ADD_BOOL ( "xvideo-shm", 1, NULL, SHM_TEXT, SHM_LONGTEXT )
86 SET_DESCRIPTION( _("XVideo extension module") )
87 ADD_CAPABILITY( VOUT, 150 )
91 _M( vout_getfunctions )( &p_module->p_functions->vout );
94 MODULE_DEACTIVATE_START
95 MODULE_DEACTIVATE_STOP
97 /* following functions are local */
100 /*****************************************************************************
102 *****************************************************************************
103 * This function can be used to set attributes, e.g. XV_BRIGHTNESS and
104 * XV_CONTRAST. "f_value" should be in the range of 0 to 1.
105 *****************************************************************************/
106 static void XVideoSetAttribute( vout_thread_t *p_vout,
107 char *attr_name, float f_value )
110 XvAttribute *p_attrib;
111 Display *p_display = p_vout->p_sys->p_display;
112 int i_xvport = p_vout->p_sys->i_xvport;
114 p_attrib = XvQueryPortAttributes( p_display, i_xvport, &i_attrib );
120 if( i_attrib >= 0 && !strcmp( p_attrib[ i_attrib ].name, attr_name ) )
122 int i_sv = f_value * ( p_attrib[ i_attrib ].max_value
123 - p_attrib[ i_attrib ].min_value + 1 )
124 + p_attrib[ i_attrib ].min_value;
126 XvSetPortAttribute( p_display, i_xvport,
127 XInternAtom( p_display, attr_name, False ), i_sv );
131 } while( i_attrib > 0 );