Commit 4c2230da authored by dionoea's avatar dionoea
Browse files

Add a new croppadd video filter. It currently isn't used anywhere. This should...

Add a new croppadd video filter. It currently isn't used anywhere. This should work for all kind of chromas.
parent e52025ed
......@@ -1194,7 +1194,7 @@ dnl
VLC_ADD_PLUGINS([dummy logger memcpy])
VLC_ADD_PLUGINS([mpgv mpga m4v m4a h264 vc1 demux_cdg cdg ps pva avi asf mp4 rawdv rawvid nsv real aiff mjpeg demuxdump flacsys tta])
VLC_ADD_PLUGINS([cvdsub svcdsub spudec subsdec subsusf t140 dvbsub cc mpeg_audio lpcm a52 dts cinepak flac])
VLC_ADD_PLUGINS([deinterlace invert adjust transform wave ripple psychedelic gradient motionblur rv32 rotate noise grain extract sharpen seamcarving])
VLC_ADD_PLUGINS([deinterlace invert adjust transform wave ripple psychedelic gradient motionblur rv32 rotate noise grain extract sharpen seamcarving croppadd])
VLC_ADD_PLUGINS([converter_fixed mono])
VLC_ADD_PLUGINS([trivial_resampler ugly_resampler])
VLC_ADD_PLUGINS([trivial_channel_mixer trivial_mixer])
......
......@@ -35,4 +35,5 @@ SOURCES_alphamask = alphamask.c
SOURCES_gaussianblur = gaussianblur.c
SOURCES_grain = grain.c
SOURCES_seamcarving = seamcarving.c
SOURCES_croppadd = croppadd.c
noinst_HEADERS = filter_common.h filter_picture.h
/*****************************************************************************
* croppadd.c: Crop/Padd image filter
*****************************************************************************
* Copyright (C) 2008 the VideoLAN team
* $Id$
*
* Authors: Antoine Cellerier <dionoea @t 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
*****************************************************************************/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <vlc/vlc.h>
#include <vlc_vout.h>
#include "vlc_filter.h"
/****************************************************************************
* Local prototypes
****************************************************************************/
static int OpenFilter ( vlc_object_t * );
static void CloseFilter( vlc_object_t * );
static picture_t *Filter( filter_t *, picture_t * );
/*****************************************************************************
* Module descriptor
*****************************************************************************/
vlc_module_begin();
set_description( _("Video scaling filter") );
set_capability( "video filter2", 0 );
set_callbacks( OpenFilter, CloseFilter );
vlc_module_end();
/*****************************************************************************
* OpenFilter: probe the filter and return score
*****************************************************************************/
static int OpenFilter( vlc_object_t *p_this )
{
filter_t *p_filter = (filter_t*)p_this;
filter_sys_t *p_sys;
if( p_filter->fmt_in.video.i_chroma != p_filter->fmt_out.video.i_chroma )
{
return VLC_EGENERIC;
}
p_filter->pf_video_filter = Filter;
msg_Dbg( p_filter, "%ix%i + %ix%i -> %ix%i + %ix%i",
p_filter->fmt_in.video.i_visible_width,
p_filter->fmt_in.video.i_visible_height,
p_filter->fmt_in.video.i_x_offset,
p_filter->fmt_in.video.i_y_offset,
p_filter->fmt_out.video.i_visible_width,
p_filter->fmt_out.video.i_visible_height,
p_filter->fmt_out.video.i_x_offset,
p_filter->fmt_out.video.i_y_offset );
return VLC_SUCCESS;
}
/*****************************************************************************
* CloseFilter: clean up the filter
*****************************************************************************/
static void CloseFilter( vlc_object_t *p_this )
{
}
/****************************************************************************
* Filter: the whole thing
****************************************************************************/
static picture_t *Filter( filter_t *p_filter, picture_t *p_pic )
{
picture_t *p_outpic;
int i_plane;
int i_width, i_height, i_xcrop, i_ycrop,
i_outwidth, i_outheight, i_xpadd, i_ypadd;
const int p_padd_color[] = { 0x00, 0x80, 0x80, 0xff };
if( !p_pic ) return NULL;
/* Request output picture */
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;
}
for( i_plane = 0; i_plane < p_pic->i_planes; i_plane++ )
/* p_pic and p_outpic have the same chroma/number of planes but that's
* about it. */
{
plane_t *p_plane = p_pic->p+i_plane;
plane_t *p_outplane = p_outpic->p+i_plane;
uint8_t *p_in = p_plane->p_pixels;
uint8_t *p_out = p_outplane->p_pixels;
int i_pixel_pitch = p_plane->i_pixel_pitch;
int i_padd_color = i_plane > 3 ? p_padd_color[0]
: p_padd_color[i_plane];
/* These assignments assume that the first plane always has
* a width and height equal to the picture's */
i_width = ( p_filter->fmt_in.video.i_visible_width
* p_plane->i_visible_pitch )
/ p_pic->p->i_visible_pitch;
i_height = ( p_filter->fmt_in.video.i_visible_height
* p_plane->i_visible_lines )
/ p_pic->p->i_visible_lines;
i_xcrop = ( p_filter->fmt_in.video.i_x_offset
* p_plane->i_visible_pitch)
/ p_pic->p->i_visible_pitch;
i_ycrop = ( p_filter->fmt_in.video.i_y_offset
* p_plane->i_visible_lines)
/ p_pic->p->i_visible_lines;
i_outwidth = ( p_filter->fmt_out.video.i_visible_width
* p_outplane->i_visible_pitch )
/ p_outpic->p->i_visible_pitch;
i_outheight = ( p_filter->fmt_out.video.i_visible_height
* p_outplane->i_visible_lines )
/ p_outpic->p->i_visible_lines;
i_xpadd = ( p_filter->fmt_out.video.i_x_offset
* p_outplane->i_visible_pitch )
/ p_outpic->p->i_visible_pitch;
i_ypadd = ( p_filter->fmt_out.video.i_y_offset
* p_outplane->i_visible_lines )
/ p_outpic->p->i_visible_lines;
/* Crop the top */
p_in += i_ycrop * p_plane->i_pitch;
/* Padd on the top */
p_filter->p_libvlc->pf_memset( p_out, i_padd_color,
i_ypadd * p_outplane->i_pitch );
p_out += i_ypadd * p_outplane->i_pitch;
int i_line;
for( i_line = 0; i_line < i_height; i_line++ )
{
uint8_t *p_in_next = p_in + p_plane->i_pitch;
uint8_t *p_out_next = p_out + p_outplane->i_pitch;
/* Crop on the left */
p_in += i_xcrop * i_pixel_pitch;
/* Padd on the left */
p_filter->p_libvlc->pf_memset( p_out, i_padd_color,
i_xpadd * i_pixel_pitch );
p_out += i_xpadd * i_pixel_pitch;
/* Copy the image and crop on the right */
p_filter->p_libvlc->pf_memcpy( p_out, p_in,
i_width * i_pixel_pitch );
p_out += i_width * i_pixel_pitch;
p_in += i_width * i_pixel_pitch;
/* Padd on the right */
p_filter->p_libvlc->pf_memset( p_out, i_padd_color,
( i_outwidth - i_width ) * i_pixel_pitch );
/* Got to begining of the next line */
p_in = p_in_next;
p_out = p_out_next;
}
/* Padd on the bottom */
p_filter->p_libvlc->pf_memset( p_out, i_padd_color,
( i_outheight - i_ypadd - i_height ) * p_outplane->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;
}
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment