1 /*****************************************************************************
2 * xvideo.c : Xvideo plugin for vlc
3 *****************************************************************************
4 * Copyright (C) 1998-2001 the VideoLAN team
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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
25 *****************************************************************************/
27 /*****************************************************************************
29 *****************************************************************************/
35 #include <vlc_common.h>
36 #include <vlc_plugin.h>
38 /*****************************************************************************
40 *****************************************************************************/
41 extern int Activate ( vlc_object_t * );
42 extern void Deactivate ( vlc_object_t * );
44 /*****************************************************************************
46 *****************************************************************************/
47 #define ADAPTOR_TEXT N_("XVideo adaptor number")
48 #define ADAPTOR_LONGTEXT N_( \
49 "If your graphics card provides several adaptors, you need to choose " \
50 "which one will be used (you shouldn't have to change this).")
52 #define DISPLAY_TEXT N_("X11 display")
53 #define DISPLAY_LONGTEXT N_( \
54 "X11 hardware display to use. By default VLC will " \
55 "use the value of the DISPLAY environment variable.")
57 #define CHROMA_TEXT N_("XVimage chroma format")
58 #define CHROMA_LONGTEXT N_( \
59 "Force the XVideo renderer to use a specific chroma format instead of " \
60 "trying to improve performances by using the most efficient one.")
62 #define SHM_TEXT N_("Use shared memory")
63 #define SHM_LONGTEXT N_( \
64 "Use shared memory to communicate between VLC and the X server.")
67 set_shortname( "XVideo" )
68 set_category( CAT_VIDEO )
69 set_subcategory( SUBCAT_VIDEO_VOUT )
70 add_string( "xvideo-display", NULL, NULL, DISPLAY_TEXT, DISPLAY_LONGTEXT, true )
71 add_integer( "xvideo-adaptor", -1, NULL, ADAPTOR_TEXT, ADAPTOR_LONGTEXT, true )
72 add_string( "xvideo-chroma", NULL, NULL, CHROMA_TEXT, CHROMA_LONGTEXT, true )
74 add_bool( "xvideo-shm", 1, NULL, SHM_TEXT, SHM_LONGTEXT, true )
77 set_description( N_("XVideo extension video output") )
78 set_capability( "video output", 150 )
79 set_callbacks( Activate, Deactivate )
82 /* following functions are local */
85 /*****************************************************************************
87 *****************************************************************************
88 * This function can be used to set attributes, e.g. XV_BRIGHTNESS and
89 * XV_CONTRAST. "f_value" should be in the range of 0 to 1.
90 *****************************************************************************/
91 static void XVideoSetAttribute( vout_thread_t *p_vout,
92 char *attr_name, float f_value )
95 XvAttribute *p_attrib;
96 Display *p_display = p_vout->p_sys->p_display;
97 int i_xvport = p_vout->p_sys->i_xvport;
99 p_attrib = XvQueryPortAttributes( p_display, i_xvport, &i_attrib );
105 if( i_attrib >= 0 && !strcmp( p_attrib[ i_attrib ].name, attr_name ) )
107 int i_sv = f_value * ( p_attrib[ i_attrib ].max_value
108 - p_attrib[ i_attrib ].min_value + 1 )
109 + p_attrib[ i_attrib ].min_value;
111 XvSetPortAttribute( p_display, i_xvport,
112 XInternAtom( p_display, attr_name, False ), i_sv );
116 } while( i_attrib > 0 );