Commit a2caeb58 authored by Antoine Cellerier's avatar Antoine Cellerier

Remove crop/padd code from imgresample module. Imgresample is now only

1 submodule (well, 1 main module) which can take care of resizing and
chroma conversion (basically it's the old chroma.c code). All the files
have been merged in imgresample.c. In the long run I might split
resizing and chroma conversion to 2 submodules (performance impact would
be nil). (This is untested.)
parent 24463d00
......@@ -19,9 +19,6 @@ EXTRA_libavcodec_plugin_la_SOURCES = \
SOURCES_imgresample = \
imgresample.c \
imgresample.h \
chroma.c \
video_filter.c \
chroma.h \
$(NULL)
......
/*****************************************************************************
* chroma.c: chroma conversion using ffmpeg library
*****************************************************************************
* Copyright (C) 1999-2008 the VideoLAN team
* $Id$
*
* Authors: Gildas Bazin <gbazin@videolan.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_common.h>
#include <vlc_vout.h>
#include <vlc_filter.h>
/* ffmpeg header */
#ifdef HAVE_LIBAVCODEC_AVCODEC_H
# include <libavcodec/avcodec.h>
#elif defined(HAVE_FFMPEG_AVCODEC_H)
# include <ffmpeg/avcodec.h>
#else
# include <avcodec.h>
#endif
#include "chroma.h"
static void ChromaConversion( filter_t *, picture_t *, picture_t * );
static picture_t *ChromaConversion_Filter( filter_t *, picture_t * );
/*****************************************************************************
* chroma_sys_t: chroma method descriptor
*****************************************************************************
* This structure is part of the chroma transformation descriptor, it
* describes the chroma plugin specific properties.
*****************************************************************************/
struct filter_sys_t
{
int i_src_vlc_chroma;
int i_src_ffmpeg_chroma;
int i_dst_vlc_chroma;
int i_dst_ffmpeg_chroma;
AVPicture tmp_pic;
ImgReSampleContext *p_rsc;
};
/*****************************************************************************
* OpenChroma: allocate a chroma function
*****************************************************************************
* This function allocates and initializes a chroma function
*****************************************************************************/
int OpenChroma( vlc_object_t *p_this )
{
filter_t *p_filter = (filter_t *)p_this;
int i_ffmpeg_chroma[2], i_vlc_chroma[2], i;
/*
* Check the source chroma first, then the destination chroma
*/
i_vlc_chroma[0] = p_filter->fmt_in.video.i_chroma;
i_vlc_chroma[1] = p_filter->fmt_out.video.i_chroma;
for( i = 0; i < 2; i++ )
{
i_ffmpeg_chroma[i] = GetFfmpegChroma( i_vlc_chroma[i] );
if( i_ffmpeg_chroma[i] < 0 ) return VLC_EGENERIC;
}
p_filter->pf_video_filter = ChromaConversion_Filter;
p_filter->p_sys = malloc( sizeof( filter_sys_t ) );
if( p_filter->p_sys == NULL )
{
return VLC_ENOMEM;
}
p_filter->p_sys->i_src_vlc_chroma = p_filter->fmt_in.video.i_chroma;
p_filter->p_sys->i_dst_vlc_chroma = p_filter->fmt_out.video.i_chroma;
p_filter->p_sys->i_src_ffmpeg_chroma = i_ffmpeg_chroma[0];
p_filter->p_sys->i_dst_ffmpeg_chroma = i_ffmpeg_chroma[1];
if( ( p_filter->fmt_in.video.i_height != p_filter->fmt_out.video.i_height ||
p_filter->fmt_in.video.i_width != p_filter->fmt_out.video.i_width ) &&
( p_filter->p_sys->i_dst_vlc_chroma == VLC_FOURCC('I','4','2','0') ||
p_filter->p_sys->i_dst_vlc_chroma == VLC_FOURCC('Y','V','1','2') ))
{
msg_Dbg( p_filter, "preparing to resample picture" );
p_filter->p_sys->p_rsc =
img_resample_init( p_filter->fmt_out.video.i_width,
p_filter->fmt_out.video.i_height,
p_filter->fmt_in.video.i_width,
p_filter->fmt_in.video.i_height );
avpicture_alloc( &p_filter->p_sys->tmp_pic,
p_filter->p_sys->i_dst_ffmpeg_chroma,
p_filter->fmt_in.video.i_width,
p_filter->fmt_in.video.i_height );
}
else
{
msg_Dbg( p_filter, "no resampling" );
p_filter->p_sys->p_rsc = NULL;
}
return VLC_SUCCESS;
}
VIDEO_FILTER_WRAPPER( ChromaConversion )
/*****************************************************************************
* ChromaConversion: actual chroma conversion function
*****************************************************************************/
static void ChromaConversion( filter_t *p_filter,
picture_t *p_src, picture_t *p_dest )
{
AVPicture src_pic;
AVPicture dest_pic;
int i;
/* Prepare the AVPictures for converion */
for( i = 0; i < p_src->i_planes; i++ )
{
src_pic.data[i] = p_src->p[i].p_pixels;
src_pic.linesize[i] = p_src->p[i].i_pitch;
}
for( i = 0; i < p_dest->i_planes; i++ )
{
dest_pic.data[i] = p_dest->p[i].p_pixels;
dest_pic.linesize[i] = p_dest->p[i].i_pitch;
}
/* Special cases */
if( p_filter->p_sys->i_src_vlc_chroma == VLC_FOURCC('Y','V','1','2') ||
p_filter->p_sys->i_src_vlc_chroma == VLC_FOURCC('Y','V','U','9') )
{
/* Invert U and V */
src_pic.data[1] = p_src->p[2].p_pixels;
src_pic.data[2] = p_src->p[1].p_pixels;
}
if( p_filter->p_sys->i_dst_vlc_chroma == VLC_FOURCC('Y','V','1','2') ||
p_filter->p_sys->i_dst_vlc_chroma == VLC_FOURCC('Y','V','U','9') )
{
/* Invert U and V */
dest_pic.data[1] = p_dest->p[2].p_pixels;
dest_pic.data[2] = p_dest->p[1].p_pixels;
}
if( p_filter->p_sys->i_src_ffmpeg_chroma == PIX_FMT_RGB24 )
if( p_filter->fmt_in.video.i_bmask == 0x00ff0000 )
p_filter->p_sys->i_src_ffmpeg_chroma = PIX_FMT_BGR24;
if( p_filter->p_sys->p_rsc )
{
img_convert( &p_filter->p_sys->tmp_pic,
p_filter->p_sys->i_dst_ffmpeg_chroma,
&src_pic, p_filter->p_sys->i_src_ffmpeg_chroma,
p_filter->fmt_in.video.i_width,
p_filter->fmt_in.video.i_height );
img_resample( p_filter->p_sys->p_rsc, &dest_pic,
&p_filter->p_sys->tmp_pic );
}
else
{
img_convert( &dest_pic, p_filter->p_sys->i_dst_ffmpeg_chroma,
&src_pic, p_filter->p_sys->i_src_ffmpeg_chroma,
p_filter->fmt_in.video.i_width,
p_filter->fmt_in.video.i_height );
}
}
/*****************************************************************************
* CloseChroma: free the chroma function
*****************************************************************************
* This function frees the previously allocated chroma function
*****************************************************************************/
void CloseChroma( vlc_object_t *p_this )
{
filter_t *p_filter = (filter_t *)p_this;
if( p_filter->p_sys->p_rsc )
{
img_resample_close( p_filter->p_sys->p_rsc );
avpicture_free( &p_filter->p_sys->tmp_pic );
}
free( p_filter->p_sys );
}
......@@ -31,9 +31,28 @@
#include <vlc_common.h>
#include <vlc_plugin.h>
#include <vlc_codec.h>
#include <vlc_vout.h>
#include <vlc_filter.h>
#include "imgresample.h"
/* ffmpeg header */
#ifdef HAVE_LIBAVCODEC_AVCODEC_H
# include <libavcodec/avcodec.h>
#elif defined(HAVE_FFMPEG_AVCODEC_H)
# include <ffmpeg/avcodec.h>
#else
# include <avcodec.h>
#endif
#include "chroma.h"
/*****************************************************************************
* Local prototypes
*****************************************************************************/
static int OpenFilter( vlc_object_t * );
static void CloseFilter( vlc_object_t * );
static void Conversion( filter_t *, picture_t *, picture_t * );
static picture_t *Conversion_Filter( filter_t *, picture_t * );
/*****************************************************************************
* Module descriptor
......@@ -42,16 +61,157 @@ vlc_module_begin();
set_capability( "video filter2", 50 );
set_callbacks( OpenFilter, CloseFilter );
set_description( N_("FFmpeg video filter") );
vlc_module_end();
/*****************************************************************************
* chroma_sys_t: chroma method descriptor
*****************************************************************************
* This structure is part of the chroma transformation descriptor, it
* describes the chroma plugin specific properties.
*****************************************************************************/
struct filter_sys_t
{
int i_src_vlc_chroma;
int i_src_ffmpeg_chroma;
int i_dst_vlc_chroma;
int i_dst_ffmpeg_chroma;
AVPicture tmp_pic;
ImgReSampleContext *p_rsc;
};
/* crop/padd submodule */
add_submodule();
set_capability( "crop padd", 10 ); /* FIXME / Remove */
set_callbacks( OpenCropPadd, CloseFilter );
set_description( N_("FFmpeg crop padd filter") );
/*****************************************************************************
* OpenFilter: allocate a chroma function
*****************************************************************************
* This function allocates and initializes a chroma function
*****************************************************************************/
int OpenFilter( vlc_object_t *p_this )
{
filter_t *p_filter = (filter_t *)p_this;
int i_ffmpeg_chroma[2], i_vlc_chroma[2], i;
/* chroma conversion submodule */
add_submodule();
set_capability( "video filter2", 50 );
set_callbacks( OpenChroma, CloseChroma );
set_description( N_("FFmpeg chroma conversion") );
vlc_module_end();
/*
* Check the source chroma first, then the destination chroma
*/
i_vlc_chroma[0] = p_filter->fmt_in.video.i_chroma;
i_vlc_chroma[1] = p_filter->fmt_out.video.i_chroma;
for( i = 0; i < 2; i++ )
{
i_ffmpeg_chroma[i] = GetFfmpegChroma( i_vlc_chroma[i] );
if( i_ffmpeg_chroma[i] < 0 ) return VLC_EGENERIC;
}
p_filter->pf_video_filter = Conversion_Filter;
p_filter->p_sys = malloc( sizeof( filter_sys_t ) );
if( p_filter->p_sys == NULL )
{
return VLC_ENOMEM;
}
p_filter->p_sys->i_src_vlc_chroma = p_filter->fmt_in.video.i_chroma;
p_filter->p_sys->i_dst_vlc_chroma = p_filter->fmt_out.video.i_chroma;
p_filter->p_sys->i_src_ffmpeg_chroma = i_ffmpeg_chroma[0];
p_filter->p_sys->i_dst_ffmpeg_chroma = i_ffmpeg_chroma[1];
if( ( p_filter->fmt_in.video.i_height != p_filter->fmt_out.video.i_height ||
p_filter->fmt_in.video.i_width != p_filter->fmt_out.video.i_width ) &&
( p_filter->p_sys->i_dst_vlc_chroma == VLC_FOURCC('I','4','2','0') ||
p_filter->p_sys->i_dst_vlc_chroma == VLC_FOURCC('Y','V','1','2') ))
{
msg_Dbg( p_filter, "preparing to resample picture" );
p_filter->p_sys->p_rsc =
img_resample_init( p_filter->fmt_out.video.i_width,
p_filter->fmt_out.video.i_height,
p_filter->fmt_in.video.i_width,
p_filter->fmt_in.video.i_height );
avpicture_alloc( &p_filter->p_sys->tmp_pic,
p_filter->p_sys->i_dst_ffmpeg_chroma,
p_filter->fmt_in.video.i_width,
p_filter->fmt_in.video.i_height );
}
else
{
msg_Dbg( p_filter, "no resampling" );
p_filter->p_sys->p_rsc = NULL;
}
return VLC_SUCCESS;
}
VIDEO_FILTER_WRAPPER( Conversion )
/*****************************************************************************
* ChromaConversion: actual chroma conversion function
*****************************************************************************/
static void Conversion( filter_t *p_filter,
picture_t *p_src, picture_t *p_dest )
{
AVPicture src_pic;
AVPicture dest_pic;
int i;
/* Prepare the AVPictures for converion */
for( i = 0; i < p_src->i_planes; i++ )
{
src_pic.data[i] = p_src->p[i].p_pixels;
src_pic.linesize[i] = p_src->p[i].i_pitch;
}
for( i = 0; i < p_dest->i_planes; i++ )
{
dest_pic.data[i] = p_dest->p[i].p_pixels;
dest_pic.linesize[i] = p_dest->p[i].i_pitch;
}
/* Special cases */
if( p_filter->p_sys->i_src_vlc_chroma == VLC_FOURCC('Y','V','1','2') ||
p_filter->p_sys->i_src_vlc_chroma == VLC_FOURCC('Y','V','U','9') )
{
/* Invert U and V */
src_pic.data[1] = p_src->p[2].p_pixels;
src_pic.data[2] = p_src->p[1].p_pixels;
}
if( p_filter->p_sys->i_dst_vlc_chroma == VLC_FOURCC('Y','V','1','2') ||
p_filter->p_sys->i_dst_vlc_chroma == VLC_FOURCC('Y','V','U','9') )
{
/* Invert U and V */
dest_pic.data[1] = p_dest->p[2].p_pixels;
dest_pic.data[2] = p_dest->p[1].p_pixels;
}
if( p_filter->p_sys->i_src_ffmpeg_chroma == PIX_FMT_RGB24 )
if( p_filter->fmt_in.video.i_bmask == 0x00ff0000 )
p_filter->p_sys->i_src_ffmpeg_chroma = PIX_FMT_BGR24;
if( p_filter->p_sys->p_rsc )
{
img_convert( &p_filter->p_sys->tmp_pic,
p_filter->p_sys->i_dst_ffmpeg_chroma,
&src_pic, p_filter->p_sys->i_src_ffmpeg_chroma,
p_filter->fmt_in.video.i_width,
p_filter->fmt_in.video.i_height );
img_resample( p_filter->p_sys->p_rsc, &dest_pic,
&p_filter->p_sys->tmp_pic );
}
else
{
img_convert( &dest_pic, p_filter->p_sys->i_dst_ffmpeg_chroma,
&src_pic, p_filter->p_sys->i_src_ffmpeg_chroma,
p_filter->fmt_in.video.i_width,
p_filter->fmt_in.video.i_height );
}
}
/*****************************************************************************
* CloseFilter: free the chroma function
*****************************************************************************
* This function frees the previously allocated chroma function
*****************************************************************************/
void CloseFilter( vlc_object_t *p_this )
{
filter_t *p_filter = (filter_t *)p_this;
if( p_filter->p_sys->p_rsc )
{
img_resample_close( p_filter->p_sys->p_rsc );
avpicture_free( &p_filter->p_sys->tmp_pic );
}
free( p_filter->p_sys );
}
/*****************************************************************************
* imgresample.h: scaling and chroma conversion using the old libavcodec API
*****************************************************************************
* Copyright (C) 2001-2008 the VideoLAN team
* $Id$
*
* Authors: Laurent Aimar <fenrir@via.ecp.fr>
*
* 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.
*****************************************************************************/
/* Chroma conversion module */
int OpenChroma( vlc_object_t * );
void CloseChroma( vlc_object_t * );
/* Video filter module */
int OpenFilter( vlc_object_t * );
int OpenCropPadd( vlc_object_t * ); /* XXX: This could be removed */
void CloseFilter( vlc_object_t * );
/*****************************************************************************
* video filter: video filter doing chroma conversion and resizing
* using the ffmpeg library
*****************************************************************************
* Copyright (C) 1999-2001 the VideoLAN team
* $Id$
*
* Authors: Gildas Bazin <gbazin@videolan.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_common.h>
#include <vlc_codec.h>
#include <vlc_vout.h>
#include <vlc_filter.h>
/* ffmpeg header */
#ifdef HAVE_LIBAVCODEC_AVCODEC_H
# include <libavcodec/avcodec.h>
#elif defined(HAVE_FFMPEG_AVCODEC_H)
# include <ffmpeg/avcodec.h>
#else
# include <avcodec.h>
#endif
#include "chroma.h"
static int CheckInit( filter_t *p_filter );
static picture_t *Process( filter_t *p_filter, picture_t *p_pic );
/*****************************************************************************
* filter_sys_t : filter descriptor
*****************************************************************************/
struct filter_sys_t
{
bool b_resize;
bool b_convert;
bool b_resize_first;
bool b_enable_croppadd;
es_format_t fmt_in;
int i_src_ffmpeg_chroma;
es_format_t fmt_out;
int i_dst_ffmpeg_chroma;
AVPicture tmp_pic;
ImgReSampleContext *p_rsc;
};
/*****************************************************************************
* OpenFilterEx: common code to OpenFilter and OpenCropPadd
*****************************************************************************/
static int OpenFilterEx( vlc_object_t *p_this, bool b_enable_croppadd )
{
filter_t *p_filter = (filter_t*)p_this;
filter_sys_t *p_sys;
bool b_convert, b_resize;
/* Check if we can handle that formats */
if( GetFfmpegChroma( p_filter->fmt_in.video.i_chroma ) < 0 ||
GetFfmpegChroma( p_filter->fmt_out.video.i_chroma ) < 0 )
{
return VLC_EGENERIC;
}
b_resize =
( p_filter->fmt_in.video.i_width != p_filter->fmt_out.video.i_width ) ||
( p_filter->fmt_in.video.i_height != p_filter->fmt_out.video.i_height );
if ( b_enable_croppadd )
{
b_resize = b_resize ||
( p_filter->fmt_in.video.i_visible_width != p_filter->fmt_in.video.i_width ) ||
( p_filter->fmt_in.video.i_visible_height != p_filter->fmt_in.video.i_height ) ||
( p_filter->fmt_in.video.i_x_offset != 0 ) ||
( p_filter->fmt_in.video.i_y_offset != 0 ) ||
( p_filter->fmt_out.video.i_visible_width != p_filter->fmt_out.video.i_width ) ||
( p_filter->fmt_out.video.i_visible_height != p_filter->fmt_out.video.i_height ) ||
( p_filter->fmt_out.video.i_x_offset != 0 ) ||
( p_filter->fmt_out.video.i_y_offset != 0 );
}
b_convert =
( p_filter->fmt_in.video.i_chroma != p_filter->fmt_out.video.i_chroma );
if( !b_resize && !b_convert )
{
/* Nothing to do */
return VLC_EGENERIC;
}
/* Allocate the memory needed to store the decoder's structure */
if( ( p_filter->p_sys = p_sys =
(filter_sys_t *)malloc(sizeof(filter_sys_t)) ) == NULL )
{
msg_Err( p_filter, "out of memory" );
return VLC_EGENERIC;
}
/* Misc init */
p_sys->p_rsc = NULL;
p_sys->b_enable_croppadd = b_enable_croppadd;
p_sys->i_src_ffmpeg_chroma =
GetFfmpegChroma( p_filter->fmt_in.video.i_chroma );
p_sys->i_dst_ffmpeg_chroma =
GetFfmpegChroma( p_filter->fmt_out.video.i_chroma );
p_filter->pf_video_filter = Process;
es_format_Init( &p_sys->fmt_in, 0, 0 );
es_format_Init( &p_sys->fmt_out, 0, 0 );
/* Dummy alloc, will be reallocated in CheckInit */
avpicture_alloc( &p_sys->tmp_pic, p_sys->i_src_ffmpeg_chroma,
p_filter->fmt_out.video.i_width,
p_filter->fmt_out.video.i_height );
if( CheckInit( p_filter ) != VLC_SUCCESS )
{
if( p_sys->p_rsc ) img_resample_close( p_sys->p_rsc );
avpicture_free( &p_sys->tmp_pic );
free( p_sys );
return VLC_EGENERIC;
}
msg_Dbg( p_filter, "input: %ix%i %4.4s -> %ix%i %4.4s",
p_filter->fmt_in.video.i_width, p_filter->fmt_in.video.i_height,
(char *)&p_filter->fmt_in.video.i_chroma,
p_filter->fmt_out.video.i_width, p_filter->fmt_out.video.i_height,
(char *)&p_filter->fmt_out.video.i_chroma );
return VLC_SUCCESS;
}
/*****************************************************************************
* OpenFilter: probe the filter and return score
*****************************************************************************/
int OpenFilter( vlc_object_t *p_this )
{
return OpenFilterEx( p_this, false );
}
/*****************************************************************************
* OpenCropPadd: probe the filter and return score
*****************************************************************************/
int OpenCropPadd( vlc_object_t *p_this )
{
return OpenFilterEx( p_this, true );
}
/*****************************************************************************
* CloseFilter: clean up the filter
*****************************************************************************/
void CloseFilter( vlc_object_t *p_this )
{
filter_t *p_filter = (filter_t*)p_this;
filter_sys_t *p_sys = p_filter->p_sys;
if( p_sys->p_rsc ) img_resample_close( p_sys->p_rsc );
avpicture_free( &p_sys->tmp_pic );
free( p_sys );
}
/*****************************************************************************
* CheckInit: Initialise filter when necessary
*****************************************************************************/
static int CheckInit( filter_t *p_filter )
{
filter_sys_t *p_sys = p_filter->p_sys;
bool b_change;
int i_croptop=0;
int i_cropbottom=0;
int i_cropleft=0;
int i_cropright=0;
int i_paddtop=0;
int i_paddbottom=0;
int i_paddleft=0;
int i_paddright=0;
b_change = ( p_filter->fmt_in.video.i_width != p_sys->fmt_in.video.i_width ) ||
( p_filter->fmt_in.video.i_height != p_sys->fmt_in.video.i_height ) ||
( p_filter->fmt_out.video.i_width != p_sys->fmt_out.video.i_width ) ||
( p_filter->fmt_out.video.i_height != p_sys->fmt_out.video.i_height );
if ( p_sys->b_enable_croppadd )
{
b_change = b_change ||
( p_filter->fmt_in.video.i_y_offset != p_sys->fmt_in.video.i_y_offset ) ||
( p_filter->fmt_in.video.i_x_offset != p_sys->fmt_in.video.i_x_offset ) ||
( p_filter->fmt_in.video.i_visible_width != p_sys->fmt_in.video.i_visible_width ) ||
( p_filter->fmt_in.video.i_visible_height != p_sys->fmt_in.video.i_visible_height ) ||
( p_filter->fmt_out.video.i_y_offset != p_sys->fmt_out.video.i_y_offset ) ||
( p_filter->fmt_out.video.i_x_offset != p_sys->fmt_out.video.i_x_offset ) ||
( p_filter->fmt_out.video.i_visible_width != p_sys->fmt_out.video.i_visible_width ) ||
( p_filter->fmt_out.video.i_visible_height != p_sys->fmt_out.video.i_visible_height );
}
if ( b_change )
{
if( p_sys->p_rsc ) img_resample_close( p_sys->p_rsc );
p_sys->p_rsc = NULL;
p_sys->b_convert =
( p_filter->fmt_in.video.i_chroma != p_filter->fmt_out.video.i_chroma );
p_sys->b_resize =