1 /*****************************************************************************
2 * filter.c : filter_t helpers.
3 *****************************************************************************
4 * Copyright (C) 2009 Laurent Aimar
7 * Author: Laurent Aimar <fenrir _AT_ videolan _DOT_ org>
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU Lesser General Public License as published by
11 * the Free Software Foundation; either version 2.1 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public License
20 * along with this program; if not, write to the Free Software Foundation,
21 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
28 #include <vlc_common.h>
30 #include <vlc_filter.h>
31 #include <vlc_modules.h>
33 filter_t
*filter_NewBlend( vlc_object_t
*p_this
,
34 const video_format_t
*p_dst_chroma
)
36 filter_t
*p_blend
= vlc_custom_create( p_this
, sizeof(*p_blend
), "blend" );
40 es_format_Init( &p_blend
->fmt_in
, VIDEO_ES
, 0 );
42 es_format_Init( &p_blend
->fmt_out
, VIDEO_ES
, 0 );
44 p_blend
->fmt_out
.i_codec
=
45 p_blend
->fmt_out
.video
.i_chroma
= p_dst_chroma
->i_chroma
;
46 p_blend
->fmt_out
.video
.i_rmask
= p_dst_chroma
->i_rmask
;
47 p_blend
->fmt_out
.video
.i_gmask
= p_dst_chroma
->i_gmask
;
48 p_blend
->fmt_out
.video
.i_bmask
= p_dst_chroma
->i_bmask
;
49 p_blend
->fmt_out
.video
.i_rrshift
= p_dst_chroma
->i_rrshift
;
50 p_blend
->fmt_out
.video
.i_rgshift
= p_dst_chroma
->i_rgshift
;
51 p_blend
->fmt_out
.video
.i_rbshift
= p_dst_chroma
->i_rbshift
;
52 p_blend
->fmt_out
.video
.i_lrshift
= p_dst_chroma
->i_lrshift
;
53 p_blend
->fmt_out
.video
.i_lgshift
= p_dst_chroma
->i_lgshift
;
54 p_blend
->fmt_out
.video
.i_lbshift
= p_dst_chroma
->i_lbshift
;
56 /* The blend module will be loaded when needed with the real
58 p_blend
->p_module
= NULL
;
63 int filter_ConfigureBlend( filter_t
*p_blend
,
64 int i_dst_width
, int i_dst_height
,
65 const video_format_t
*p_src
)
68 if( p_blend
->p_module
&&
69 p_blend
->fmt_in
.video
.i_chroma
!= p_src
->i_chroma
)
71 /* The chroma is not the same, we need to reload the blend module */
72 module_unneed( p_blend
, p_blend
->p_module
);
73 p_blend
->p_module
= NULL
;
78 p_blend
->fmt_in
.i_codec
= p_src
->i_chroma
;
79 p_blend
->fmt_in
.video
= *p_src
;
82 p_blend
->fmt_out
.video
.i_width
=
83 p_blend
->fmt_out
.video
.i_visible_width
= i_dst_width
;
84 p_blend
->fmt_out
.video
.i_height
=
85 p_blend
->fmt_out
.video
.i_visible_height
= i_dst_height
;
88 if( !p_blend
->p_module
)
89 p_blend
->p_module
= module_need( p_blend
, "video blending", NULL
, false );
90 if( !p_blend
->p_module
)
95 int filter_Blend( filter_t
*p_blend
,
96 picture_t
*p_dst
, int i_dst_x
, int i_dst_y
,
97 const picture_t
*p_src
, int i_alpha
)
99 if( !p_blend
->p_module
)
102 p_blend
->pf_video_blend( p_blend
, p_dst
, p_src
, i_dst_x
, i_dst_y
, i_alpha
);
106 void filter_DeleteBlend( filter_t
*p_blend
)
108 if( p_blend
->p_module
)
109 module_unneed( p_blend
, p_blend
->p_module
);
111 vlc_object_release( p_blend
);
115 #include <vlc_video_splitter.h>
117 video_splitter_t
*video_splitter_New( vlc_object_t
*p_this
,
118 const char *psz_name
,
119 const video_format_t
*p_fmt
)
121 video_splitter_t
*p_splitter
= vlc_custom_create( p_this
,
122 sizeof(*p_splitter
), "video splitter" );
126 video_format_Copy( &p_splitter
->fmt
, p_fmt
);
129 p_splitter
->p_module
= module_need( p_splitter
, "video splitter", psz_name
, true );
130 if( ! p_splitter
->p_module
)
132 video_splitter_Delete( p_splitter
);
139 void video_splitter_Delete( video_splitter_t
*p_splitter
)
141 if( p_splitter
->p_module
)
142 module_unneed( p_splitter
, p_splitter
->p_module
);
144 video_format_Clean( &p_splitter
->fmt
);
146 vlc_object_release( p_splitter
);