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videolan
vlc-gpu
Commits
7588d6a1
Commit
7588d6a1
authored
Jul 14, 2006
by
Antoine Cellerier
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Split the distort video filter module into several video filter2 modules.
parent
f5141f9f
Changes
6
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Showing
6 changed files
with
779 additions
and
508 deletions
+779
-508
configure.ac
configure.ac
+2
-2
modules/video_filter/Modules.am
modules/video_filter/Modules.am
+4
-1
modules/video_filter/gradient.c
modules/video_filter/gradient.c
+112
-505
modules/video_filter/psychedelic.c
modules/video_filter/psychedelic.c
+252
-0
modules/video_filter/ripple.c
modules/video_filter/ripple.c
+211
-0
modules/video_filter/wave.c
modules/video_filter/wave.c
+198
-0
No files found.
configure.ac
View file @
7588d6a1
...
...
@@ -564,7 +564,7 @@ AM_CONDITIONAL(BUILD_GETOPT, ${need_getopt})
if test "${SYS}" != "mingw32" -a "${SYS}" != "mingwce"; then
AC_TYPE_SIGNAL
AC_CHECK_LIB(m,cos,[
VLC_ADD_LDFLAGS([adjust
distor
t a52tofloat32 dtstofloat32 x264 goom visual],[-lm])
VLC_ADD_LDFLAGS([adjust
wave ripple psychedelic gradien
t a52tofloat32 dtstofloat32 x264 goom visual],[-lm])
])
AC_CHECK_LIB(m,pow,[
VLC_ADD_LDFLAGS([ffmpeg ffmpegaltivec stream_out_transrate i420_rgb faad twolame equalizer param_eq vlc freetype mpc dmo quicktime realaudio galaktos],[-lm])
...
...
@@ -1122,7 +1122,7 @@ dnl
VLC_ADD_PLUGINS([dummy logger memcpy])
VLC_ADD_PLUGINS([mpgv mpga m4v m4a h264 ps pva avi asf mp4 rawdv nsv real aiff mjpeg demuxdump flac])
VLC_ADD_PLUGINS([cvdsub svcdsub spudec subsdec dvbsub mpeg_audio lpcm a52 dts cinepak flacdec])
VLC_ADD_PLUGINS([deinterlace invert adjust transform
distor
t motionblur rv32])
VLC_ADD_PLUGINS([deinterlace invert adjust transform
wave ripple psychedelic gradien
t motionblur rv32])
VLC_ADD_PLUGINS([fixed32tos16 s16tofixed32 u8tofixed32])
VLC_ADD_PLUGINS([trivial_resampler ugly_resampler])
VLC_ADD_PLUGINS([trivial_channel_mixer trivial_mixer])
...
...
modules/video_filter/Modules.am
View file @
7588d6a1
...
...
@@ -2,7 +2,6 @@ SOURCES_mosaic = mosaic.c mosaic.h
SOURCES_transform = transform.c
SOURCES_invert = invert.c
SOURCES_adjust = adjust.c
SOURCES_distort = distort.c
SOURCES_wall = wall.c
SOURCES_clone = clone.c
SOURCES_crop = crop.c
...
...
@@ -18,4 +17,8 @@ SOURCES_motiondetect = motiondetect.c
SOURCES_rv32 = rv32.c
SOURCES_osdmenu = osdmenu.c
SOURCES_magnify = magnify.c
SOURCES_wave = wave.c
SOURCES_ripple = ripple.c
SOURCES_psychedelic = psychedelic.c
SOURCES_gradient = gradient.c
noinst_HEADERS = filter_common.h
modules/video_filter/
distor
t.c
→
modules/video_filter/
gradien
t.c
View file @
7588d6a1
This diff is collapsed.
Click to expand it.
modules/video_filter/psychedelic.c
0 → 100644
View file @
7588d6a1
/*****************************************************************************
* Psychedelic.c : Psychedelic video effect plugin for vlc
*****************************************************************************
* Copyright (C) 2000-2006 the VideoLAN team
* $Id$
*
* Authors: Samuel Hocevar <sam@zoy.org>
* Antoine Cellerier <dionoea -at- videolan -dot- org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
#include <stdlib.h>
/* malloc(), free() */
#include <string.h>
#include <math.h>
/* sin(), cos() */
#include <vlc/vlc.h>
#include <vlc/decoder.h>
#include "vlc_filter.h"
#include "vlc_image.h"
/*****************************************************************************
* Local prototypes
*****************************************************************************/
static
int
Create
(
vlc_object_t
*
);
static
void
Destroy
(
vlc_object_t
*
);
static
picture_t
*
Filter
(
filter_t
*
,
picture_t
*
);
/*****************************************************************************
* Module descriptor
*****************************************************************************/
vlc_module_begin
();
set_description
(
_
(
"Psychedelic video filter"
)
);
set_shortname
(
N_
(
"Psychedelic"
));
set_capability
(
"video filter2"
,
0
);
set_category
(
CAT_VIDEO
);
set_subcategory
(
SUBCAT_VIDEO_VFILTER2
);
add_shortcut
(
"psychedelic"
);
set_callbacks
(
Create
,
Destroy
);
vlc_module_end
();
/*****************************************************************************
* vout_sys_t: Distort video output method descriptor
*****************************************************************************
* This structure is part of the video output thread descriptor.
* It describes the Distort specific properties of an output thread.
*****************************************************************************/
struct
filter_sys_t
{
image_handler_t
*
p_image
;
unsigned
int
x
,
y
,
scale
;
int
xinc
,
yinc
,
scaleinc
;
uint8_t
u
,
v
;
};
/*****************************************************************************
* Create: allocates Distort video thread output method
*****************************************************************************
* This function allocates and initializes a Distort vout method.
*****************************************************************************/
static
int
Create
(
vlc_object_t
*
p_this
)
{
filter_t
*
p_filter
=
(
filter_t
*
)
p_this
;
/* Allocate structure */
p_filter
->
p_sys
=
malloc
(
sizeof
(
filter_sys_t
)
);
if
(
p_filter
->
p_sys
==
NULL
)
{
msg_Err
(
p_filter
,
"out of memory"
);
return
VLC_ENOMEM
;
}
p_filter
->
pf_video_filter
=
Filter
;
p_filter
->
p_sys
->
x
=
10
;
p_filter
->
p_sys
->
y
=
10
;
p_filter
->
p_sys
->
scale
=
1
;
p_filter
->
p_sys
->
xinc
=
1
;
p_filter
->
p_sys
->
yinc
=
1
;
p_filter
->
p_sys
->
scaleinc
=
1
;
p_filter
->
p_sys
->
u
=
0
;
p_filter
->
p_sys
->
v
=
0
;
p_filter
->
p_sys
->
p_image
=
NULL
;
return
VLC_SUCCESS
;
}
/*****************************************************************************
* Destroy: destroy Distort video thread output method
*****************************************************************************
* Terminate an output method created by DistortCreateOutputMethod
*****************************************************************************/
static
void
Destroy
(
vlc_object_t
*
p_this
)
{
filter_t
*
p_filter
=
(
filter_t
*
)
p_this
;
if
(
p_filter
->
p_sys
->
p_image
)
image_HandlerDelete
(
p_filter
->
p_sys
->
p_image
);
free
(
p_filter
->
p_sys
);
}
/*****************************************************************************
* Render: displays previously rendered output
*****************************************************************************
* This function send the currently rendered image to Distort image, waits
* until it is displayed and switch the two rendering buffers, preparing next
* frame.
*****************************************************************************/
static
picture_t
*
Filter
(
filter_t
*
p_filter
,
picture_t
*
p_pic
)
{
picture_t
*
p_outpic
;
unsigned
int
w
,
h
;
int
x
,
y
;
uint8_t
u
,
v
;
video_format_t
fmt_out
=
{
0
};
picture_t
*
p_converted
;
if
(
!
p_pic
)
return
NULL
;
p_outpic
=
p_filter
->
pf_vout_buffer_new
(
p_filter
);
if
(
!
p_outpic
)
{
msg_Warn
(
p_filter
,
"can't get output picture"
);
if
(
p_pic
->
pf_release
)
p_pic
->
pf_release
(
p_pic
);
return
NULL
;
}
if
(
!
p_filter
->
p_sys
->
p_image
)
p_filter
->
p_sys
->
p_image
=
image_HandlerCreate
(
p_filter
);
/* chrominance */
u
=
p_filter
->
p_sys
->
u
;
v
=
p_filter
->
p_sys
->
v
;
for
(
y
=
0
;
y
<
p_outpic
->
p
[
U_PLANE
].
i_lines
;
y
++
)
{
memset
(
p_outpic
->
p
[
U_PLANE
].
p_pixels
+
y
*
p_outpic
->
p
[
U_PLANE
].
i_pitch
,
u
,
p_outpic
->
p
[
U_PLANE
].
i_pitch
);
memset
(
p_outpic
->
p
[
V_PLANE
].
p_pixels
+
y
*
p_outpic
->
p
[
V_PLANE
].
i_pitch
,
v
,
p_outpic
->
p
[
V_PLANE
].
i_pitch
);
if
(
v
==
0
&&
u
!=
0
)
u
--
;
else
if
(
u
==
0xff
)
v
--
;
else
if
(
v
==
0xff
)
u
++
;
else
if
(
u
==
0
)
v
++
;
}
/* luminance */
p_filter
->
p_vlc
->
pf_memcpy
(
p_outpic
->
p
[
Y_PLANE
].
p_pixels
,
p_pic
->
p
[
Y_PLANE
].
p_pixels
,
p_outpic
->
p
[
Y_PLANE
].
i_lines
*
p_outpic
->
p
[
Y_PLANE
].
i_pitch
);
/* image visualization */
fmt_out
=
p_filter
->
fmt_out
.
video
;
fmt_out
.
i_width
=
p_filter
->
fmt_out
.
video
.
i_width
*
p_filter
->
p_sys
->
scale
/
150
;
fmt_out
.
i_height
=
p_filter
->
fmt_out
.
video
.
i_height
*
p_filter
->
p_sys
->
scale
/
150
;
p_converted
=
image_Convert
(
p_filter
->
p_sys
->
p_image
,
p_pic
,
&
(
p_pic
->
format
),
&
fmt_out
);
#define copyimage( plane, b ) \
for( y=0; y<p_converted->p[plane].i_visible_lines; y++) { \
for( x=0; x<p_converted->p[plane].i_visible_pitch; x++) { \
int nx, ny; \
if( p_filter->p_sys->yinc == 1 ) \
ny= y; \
else \
ny = p_converted->p[plane].i_visible_lines-y; \
if( p_filter->p_sys->xinc == 1 ) \
nx = x; \
else \
nx = p_converted->p[plane].i_visible_pitch-x; \
p_outpic->p[plane].p_pixels[(p_filter->p_sys->x*b+nx)+(ny+p_filter->p_sys->y*b)*p_outpic->p[plane].i_pitch ] = p_converted->p[plane].p_pixels[y*p_converted->p[plane].i_pitch+x]; \
} }
copyimage
(
Y_PLANE
,
2
);
copyimage
(
U_PLANE
,
1
);
copyimage
(
V_PLANE
,
1
);
#undef copyimage
p_converted
->
pf_release
(
p_converted
);
p_filter
->
p_sys
->
x
+=
p_filter
->
p_sys
->
xinc
;
p_filter
->
p_sys
->
y
+=
p_filter
->
p_sys
->
yinc
;
p_filter
->
p_sys
->
scale
+=
p_filter
->
p_sys
->
scaleinc
;
if
(
p_filter
->
p_sys
->
scale
>=
50
)
p_filter
->
p_sys
->
scaleinc
=
-
1
;
if
(
p_filter
->
p_sys
->
scale
<=
1
)
p_filter
->
p_sys
->
scaleinc
=
1
;
w
=
p_filter
->
fmt_out
.
video
.
i_width
*
p_filter
->
p_sys
->
scale
/
150
;
h
=
p_filter
->
fmt_out
.
video
.
i_height
*
p_filter
->
p_sys
->
scale
/
150
;
if
(
p_filter
->
p_sys
->
x
*
2
+
w
>=
p_filter
->
fmt_out
.
video
.
i_width
)
p_filter
->
p_sys
->
xinc
=
-
1
;
if
(
p_filter
->
p_sys
->
x
<=
0
)
p_filter
->
p_sys
->
xinc
=
1
;
if
(
p_filter
->
p_sys
->
x
*
2
+
w
>=
p_filter
->
fmt_out
.
video
.
i_width
)
p_filter
->
p_sys
->
x
=
(
p_filter
->
fmt_out
.
video
.
i_width
-
w
)
/
2
;
if
(
p_filter
->
p_sys
->
y
*
2
+
h
>=
p_filter
->
fmt_out
.
video
.
i_height
)
p_filter
->
p_sys
->
y
=
(
p_filter
->
fmt_out
.
video
.
i_height
-
h
)
/
2
;
if
(
p_filter
->
p_sys
->
y
*
2
+
h
>=
p_filter
->
fmt_out
.
video
.
i_height
)
p_filter
->
p_sys
->
yinc
=
-
1
;
if
(
p_filter
->
p_sys
->
y
<=
0
)
p_filter
->
p_sys
->
yinc
=
1
;
for
(
y
=
0
;
y
<
16
;
y
++
)
{
if
(
p_filter
->
p_sys
->
v
==
0
&&
p_filter
->
p_sys
->
u
!=
0
)
p_filter
->
p_sys
->
u
-=
1
;
else
if
(
p_filter
->
p_sys
->
u
==
0xff
)
p_filter
->
p_sys
->
v
-=
1
;
else
if
(
p_filter
->
p_sys
->
v
==
0xff
)
p_filter
->
p_sys
->
u
+=
1
;
else
if
(
p_filter
->
p_sys
->
u
==
0
)
p_filter
->
p_sys
->
v
+=
1
;
}
p_outpic
->
date
=
p_pic
->
date
;
p_outpic
->
b_force
=
p_pic
->
b_force
;
p_outpic
->
i_nb_fields
=
p_pic
->
i_nb_fields
;
p_outpic
->
b_progressive
=
p_pic
->
b_progressive
;
p_outpic
->
b_top_field_first
=
p_pic
->
b_top_field_first
;
p_pic
->
pf_release
(
p_pic
);
return
p_outpic
;
}
modules/video_filter/ripple.c
0 → 100644
View file @
7588d6a1
/*****************************************************************************
* ripple.c : Ripple video effect plugin for vlc
*****************************************************************************
* Copyright (C) 2000-2006 the VideoLAN team
* $Id$
*
* Authors: Samuel Hocevar <sam@zoy.org>
* Antoine Cellerier <dionoea -at- videolan -dot- org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
#include <stdlib.h>
/* malloc(), free() */
#include <string.h>
#include <math.h>
/* sin(), cos() */
#include <vlc/vlc.h>
#include <vlc/decoder.h>
#include "vlc_filter.h"
/*****************************************************************************
* Local prototypes
*****************************************************************************/
static
int
Create
(
vlc_object_t
*
);
static
void
Destroy
(
vlc_object_t
*
);
static
picture_t
*
Filter
(
filter_t
*
,
picture_t
*
);
/*****************************************************************************
* Module descriptor
*****************************************************************************/
vlc_module_begin
();
set_description
(
_
(
"Ripple video filter"
)
);
set_shortname
(
N_
(
"Ripple"
));
set_capability
(
"video filter2"
,
0
);
set_category
(
CAT_VIDEO
);
set_subcategory
(
SUBCAT_VIDEO_VFILTER2
);
add_shortcut
(
"ripple"
);
set_callbacks
(
Create
,
Destroy
);
vlc_module_end
();
/*****************************************************************************
* vout_sys_t: Distort video output method descriptor
*****************************************************************************
* This structure is part of the video output thread descriptor.
* It describes the Distort specific properties of an output thread.
*****************************************************************************/
struct
filter_sys_t
{
double
f_angle
;
mtime_t
last_date
;
};
/*****************************************************************************
* Create: allocates Distort video thread output method
*****************************************************************************
* This function allocates and initializes a Distort vout method.
*****************************************************************************/
static
int
Create
(
vlc_object_t
*
p_this
)
{
filter_t
*
p_filter
=
(
filter_t
*
)
p_this
;
/* Allocate structure */
p_filter
->
p_sys
=
malloc
(
sizeof
(
filter_sys_t
)
);
if
(
p_filter
->
p_sys
==
NULL
)
{
msg_Err
(
p_filter
,
"out of memory"
);
return
VLC_ENOMEM
;
}
p_filter
->
pf_video_filter
=
Filter
;
p_filter
->
p_sys
->
f_angle
=
0
.
0
;
p_filter
->
p_sys
->
last_date
=
0
;
return
VLC_SUCCESS
;
}
/*****************************************************************************
* Destroy: destroy Distort video thread output method
*****************************************************************************
* Terminate an output method created by DistortCreateOutputMethod
*****************************************************************************/
static
void
Destroy
(
vlc_object_t
*
p_this
)
{
filter_t
*
p_filter
=
(
filter_t
*
)
p_this
;
free
(
p_filter
->
p_sys
);
}
/*****************************************************************************
* Render: displays previously rendered output
*****************************************************************************
* This function send the currently rendered image to Distort image, waits
* until it is displayed and switch the two rendering buffers, preparing next
* frame.
*****************************************************************************/
static
picture_t
*
Filter
(
filter_t
*
p_filter
,
picture_t
*
p_pic
)
{
picture_t
*
p_outpic
;
int
i_index
;
double
f_angle
;
mtime_t
new_date
=
mdate
();
if
(
!
p_pic
)
return
NULL
;
p_outpic
=
p_filter
->
pf_vout_buffer_new
(
p_filter
);
if
(
!
p_outpic
)
{
msg_Warn
(
p_filter
,
"can't get output picture"
);
if
(
p_pic
->
pf_release
)
p_pic
->
pf_release
(
p_pic
);
return
NULL
;
}
p_filter
->
p_sys
->
f_angle
-=
(
p_filter
->
p_sys
->
last_date
-
new_date
)
/
100000
.
0
;
p_filter
->
p_sys
->
last_date
=
new_date
;
f_angle
=
p_filter
->
p_sys
->
f_angle
;
for
(
i_index
=
0
;
i_index
<
p_pic
->
i_planes
;
i_index
++
)
{
int
i_line
,
i_first_line
,
i_num_lines
,
i_offset
;
uint8_t
black_pixel
;
uint8_t
*
p_in
,
*
p_out
;
black_pixel
=
(
i_index
==
Y_PLANE
)
?
0x00
:
0x80
;
i_num_lines
=
p_pic
->
p
[
i_index
].
i_visible_lines
;
i_first_line
=
i_num_lines
*
4
/
5
;
p_in
=
p_pic
->
p
[
i_index
].
p_pixels
;
p_out
=
p_outpic
->
p
[
i_index
].
p_pixels
;
for
(
i_line
=
0
;
i_line
<
i_first_line
;
i_line
++
)
{
p_filter
->
p_vlc
->
pf_memcpy
(
p_out
,
p_in
,
p_pic
->
p
[
i_index
].
i_visible_pitch
);
p_in
+=
p_pic
->
p
[
i_index
].
i_pitch
;
p_out
+=
p_outpic
->
p
[
i_index
].
i_pitch
;
}
/* Ok, we do 3 times the sin() calculation for each line. So what ? */
for
(
i_line
=
i_first_line
;
i_line
<
i_num_lines
;
i_line
++
)
{
/* Calculate today's offset, don't go above 1/20th of the screen */
i_offset
=
(
int
)(
(
double
)(
p_pic
->
p
[
i_index
].
i_pitch
)
*
sin
(
f_angle
+
2
.
0
*
(
double
)
i_line
/
(
double
)(
1
+
i_line
-
i_first_line
)
)
*
(
double
)(
i_line
-
i_first_line
)
/
(
double
)
i_num_lines
/
8
.
0
);
if
(
i_offset
)
{
if
(
i_offset
<
0
)
{
p_filter
->
p_vlc
->
pf_memcpy
(
p_out
,
p_in
-
i_offset
,
p_pic
->
p
[
i_index
].
i_visible_pitch
+
i_offset
);
p_in
-=
p_pic
->
p
[
i_index
].
i_pitch
;
p_out
+=
p_outpic
->
p
[
i_index
].
i_pitch
;
memset
(
p_out
+
i_offset
,
black_pixel
,
-
i_offset
);
}
else
{
p_filter
->
p_vlc
->
pf_memcpy
(
p_out
+
i_offset
,
p_in
,
p_pic
->
p
[
i_index
].
i_visible_pitch
-
i_offset
);
memset
(
p_out
,
black_pixel
,
i_offset
);
p_in
-=
p_pic
->
p
[
i_index
].
i_pitch
;
p_out
+=
p_outpic
->
p
[
i_index
].
i_pitch
;
}
}
else
{
p_filter
->
p_vlc
->
pf_memcpy
(
p_out
,
p_in
,
p_pic
->
p
[
i_index
].
i_visible_pitch
);
p_in
-=
p_pic
->
p
[
i_index
].
i_pitch
;
p_out
+=
p_outpic
->
p
[
i_index
].
i_pitch
;
}
}
}
p_outpic
->
date
=
p_pic
->
date
;
p_outpic
->
b_force
=
p_pic
->
b_force
;
p_outpic
->
i_nb_fields
=
p_pic
->
i_nb_fields
;
p_outpic
->
b_progressive
=
p_pic
->
b_progressive
;
p_outpic
->
b_top_field_first
=
p_pic
->
b_top_field_first
;
p_pic
->
pf_release
(
p_pic
);
return
p_outpic
;
}
modules/video_filter/wave.c
0 → 100644
View file @
7588d6a1
/*****************************************************************************
* wave.c : Wave video effect plugin for vlc
*****************************************************************************
* Copyright (C) 2000-2006 the VideoLAN team
* $Id$
*
* Authors: Samuel Hocevar <sam@zoy.org>
* Antoine Cellerier <dionoea -at- videolan -dot- org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
#include <stdlib.h>
/* malloc(), free() */
#include <string.h>
#include <math.h>
/* sin(), cos() */
#include <vlc/vlc.h>
#include <vlc/decoder.h>
#include "vlc_filter.h"
/*****************************************************************************
* Local prototypes
*****************************************************************************/
static
int
Create
(
vlc_object_t
*
);
static
void
Destroy
(
vlc_object_t
*
);
static
picture_t
*
Filter
(
filter_t
*
,
picture_t
*
);
/*****************************************************************************
* Module descriptor
*****************************************************************************/
vlc_module_begin
();
set_description
(
_
(
"Wave video filter"
)
);
set_shortname
(
N_
(
"Wave"
));
set_capability
(
"video filter2"
,
0
);
set_category
(
CAT_VIDEO
);
set_subcategory
(
SUBCAT_VIDEO_VFILTER2
);
add_shortcut
(
"wave"
);
set_callbacks
(
Create
,
Destroy
);
vlc_module_end
();
/*****************************************************************************
* vout_sys_t: Distort video output method descriptor
*****************************************************************************
* This structure is part of the video output thread descriptor.
* It describes the Distort specific properties of an output thread.
*****************************************************************************/
struct
filter_sys_t
{
double
f_angle
;
mtime_t
last_date
;
};
/*****************************************************************************
* Create: allocates Distort video thread output method
*****************************************************************************
* This function allocates and initializes a Distort vout method.
*****************************************************************************/
static
int
Create
(
vlc_object_t
*
p_this
)
{
filter_t
*
p_filter
=
(
filter_t
*
)
p_this
;
/* Allocate structure */
p_filter
->
p_sys
=
malloc
(
sizeof
(
filter_sys_t
)
);
if
(
p_filter
->
p_sys
==
NULL
)
{
msg_Err
(
p_filter
,
"out of memory"
);
return
VLC_ENOMEM
;
}
p_filter
->
pf_video_filter
=
Filter
;
p_filter
->
p_sys
->
f_angle
=
0
.
0
;
p_filter
->
p_sys
->
last_date
=
0
;
return
VLC_SUCCESS
;
}
/*****************************************************************************
* Destroy: destroy Distort video thread output method
*****************************************************************************
* Terminate an output method created by DistortCreateOutputMethod
*****************************************************************************/
static
void
Destroy
(
vlc_object_t
*
p_this
)
{
filter_t
*
p_filter
=
(
filter_t
*
)
p_this
;
free
(
p_filter
->
p_sys
);
}
/*****************************************************************************
* Render: displays previously rendered output
*****************************************************************************
* This function send the currently rendered image to Distort image, waits
* until it is displayed and switch the two rendering buffers, preparing next
* frame.
*****************************************************************************/
static
picture_t
*
Filter
(
filter_t
*
p_filter
,
picture_t
*
p_pic
)
{
picture_t
*
p_outpic
;
int
i_index
;
double
f_angle
;
mtime_t
new_date
=
mdate
();
if
(
!
p_pic
)
return
NULL
;
p_outpic
=
p_filter
->
pf_vout_buffer_new
(
p_filter
);
if
(
!
p_outpic
)
{
msg_Warn
(
p_filter
,
"can't get output picture"
);
if
(
p_pic
->
pf_release
)
p_pic
->
pf_release
(
p_pic
);
return
NULL
;
}
p_filter
->
p_sys
->
f_angle
+=
(
new_date
-
p_filter
->
p_sys
->
last_date
)
/
200000
.
0
;
p_filter
->
p_sys
->
last_date
=
new_date
;
f_angle
=
p_filter
->
p_sys
->
f_angle
;
for
(
i_index
=
0
;
i_index
<
p_pic
->
i_planes
;
i_index
++
)
{
int
i_line
,
i_num_lines
,
i_offset
;
uint8_t
black_pixel
;
uint8_t
*
p_in
,
*
p_out
;
p_in
=
p_pic
->
p
[
i_index
].
p_pixels
;
p_out
=
p_outpic
->
p
[
i_index
].
p_pixels
;
i_num_lines
=
p_pic
->
p
[
i_index
].
i_visible_lines
;
black_pixel
=
(
i_index
==
Y_PLANE
)
?
0x00
:
0x80
;
/* Ok, we do 3 times the sin() calculation for each line. So what ? */
for
(
i_line
=
0
;
i_line
<
i_num_lines
;
i_line
++
)
{
/* Calculate today's offset, don't go above 1/20th of the screen */
i_offset
=
(
int
)(
(
double
)(
p_pic
->
p
[
i_index
].
i_visible_pitch
)
*
sin
(
f_angle
+
10
.
0
*
(
double
)
i_line
/
(
double
)
i_num_lines
)
/
20
.
0
);
if
(
i_offset
)
{
if
(
i_offset
<
0
)
{
p_filter
->
p_vlc
->
pf_memcpy
(
p_out
,
p_in
-
i_offset
,
p_pic
->
p
[
i_index
].
i_visible_pitch
+
i_offset
);
p_in
+=
p_pic
->
p
[
i_index
].
i_pitch
;
p_out
+=
p_outpic
->
p
[
i_index
].
i_pitch
;
memset
(
p_out
+
i_offset
,
black_pixel
,
-
i_offset
);
}
else
{
p_filter
->
p_vlc
->
pf_memcpy
(
p_out
+
i_offset
,
p_in
,
p_pic
->
p
[
i_index
].
i_visible_pitch
-
i_offset
);
memset
(
p_out
,
black_pixel
,
i_offset
);
p_in
+=
p_pic
->
p
[
i_index
].
i_pitch
;
p_out
+=
p_outpic
->
p
[
i_index
].
i_pitch
;
}
}
else
{
p_filter
->
p_vlc
->
pf_memcpy
(
p_out
,
p_in
,
p_pic
->
p
[
i_index
].
i_visible_pitch
);
p_in
+=
p_pic
->
p
[
i_index
].
i_pitch
;
p_out
+=
p_outpic
->
p
[
i_index
].
i_pitch
;
}
}
}
p_outpic
->
date
=
p_pic
->
date
;
p_outpic
->
b_force
=
p_pic
->
b_force
;
p_outpic
->
i_nb_fields
=
p_pic
->
i_nb_fields
;
p_outpic
->
b_progressive
=
p_pic
->
b_progressive
;
p_outpic
->
b_top_field_first
=
p_pic
->
b_top_field_first
;
p_pic
->
pf_release
(
p_pic
);
return
p_outpic
;
}
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