* motion_blur.c : motion blur filter for vlc
*****************************************************************************
* Copyright (C) 2000, 2001 VideoLAN
- * $Id: motionblur.c,v 1.4 2002/11/28 17:35:00 sam Exp $
+ * $Id: motionblur.c,v 1.5 2003/01/09 17:47:05 sam Exp $
*
* Authors: Sigmund Augdal <sigmunau@idi.ntnu.no>
*
* 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
* This function allocates and initializes a Deinterlace vout method.
*****************************************************************************/
static int Create( vlc_object_t *p_this )
-{
+{
vout_thread_t *p_vout = (vout_thread_t *)p_this;
/* Allocate structure */
if( p_vout->p_sys == NULL )
{
msg_Err( p_vout, "out of memory" );
- return 1;
+ return VLC_ENOMEM;
}
p_vout->pf_init = Init;
p_vout->p_sys->last_date = 0;
p_vout->p_sys->p_lastpic = NULL;
- return 0;
+ return VLC_SUCCESS;
}
/*****************************************************************************
{
int i_index;
picture_t *p_pic;
-
+
I_OUTPUTPICTURES = 0;
/* Initialize the output structure, full of directbuffers since we want
break;
default:
- return 0; /* unknown chroma */
+ return VLC_EGENERIC; /* unknown chroma */
break;
}
{
msg_Err( p_vout, "cannot open vout, aborting" );
- return 0;
+ return VLC_EGENERIC;
}
-
+
ALLOCATE_DIRECTBUFFERS( VOUT_MAX_PICTURES );
- return 0;
+ return VLC_SUCCESS;
}
/*****************************************************************************
msleep( VOUT_OUTMEM_SLEEP );
}
vout_DatePicture( p_vout, p_outpic, p_pic->date );
-
+
if ( p_vout->p_sys->p_lastpic == NULL )
{
/* Get a new picture */
}
CopyPicture( p_vout, p_vout->p_sys->p_lastpic, p_outpic );
vout_DisplayPicture( p_vout->p_sys->p_vout, p_outpic );
-
}
-static void CopyPicture( vout_thread_t *p_vout,
- picture_t *p_dest, picture_t *p_source)
+/* FIXME: this is a verbatim copy from src/video_output/vout_pictures.c */
+/* XXX: the order is fucked up!! */
+static void CopyPicture( vout_thread_t * p_vout,
+ picture_t *p_dest, picture_t *p_src )
{
- int i_plane;
+ int i;
- for( i_plane = 0 ; i_plane < p_dest->i_planes ; i_plane++ )
+ for( i = 0; i < p_src->i_planes ; i++ )
{
- u8 *p_in, *p_out;
-
- p_in = p_source->p[i_plane].p_pixels;
+ if( p_src->p[i].i_pitch == p_dest->p[i].i_pitch )
+ {
+ /* There are margins, but with the same width : perfect ! */
+ p_vout->p_vlc->pf_memcpy(
+ p_dest->p[i].p_pixels, p_src->p[i].p_pixels,
+ p_src->p[i].i_pitch * p_src->p[i].i_lines );
+ }
+ else
+ {
+ /* We need to proceed line by line */
+ uint8_t *p_in = p_src->p[i].p_pixels;
+ uint8_t *p_out = p_dest->p[i].p_pixels;
+ int i_line;
- p_out = p_dest->p[i_plane].p_pixels;
- p_vout->p_vlc->pf_memcpy( p_out, p_in,
- p_dest->p[i_plane].i_pitch *
- p_dest->p[i_plane].i_lines);
+ for( i_line = p_src->p[i].i_lines; i_line--; )
+ {
+ p_vout->p_vlc->pf_memcpy( p_out, p_in,
+ p_src->p[i].i_visible_pitch );
+ p_in += p_src->p[i].i_pitch;
+ p_out += p_dest->p[i].i_pitch;
+ }
+ }
}
}
+
/*****************************************************************************
- * RenderBob: renders a bob picture
+ * RenderBlur: renders a blurred picture
*****************************************************************************/
static void RenderBlur( vout_thread_t *p_vout, picture_t *p_oldpic,
picture_t *p_newpic, picture_t *p_outpic )
int i_newfactor = 128 - p_vout->p_sys->i_factor;
for( i_plane = 0; i_plane < p_outpic->i_planes; i_plane++ )
{
- u8 *p_old, *p_new, *p_out, *p_out_end;
+ uint8_t *p_old, *p_new, *p_out, *p_out_end, *p_out_line_end;
p_out = p_outpic->p[i_plane].p_pixels;
p_new = p_newpic->p[i_plane].p_pixels;
p_old = p_oldpic->p[i_plane].p_pixels;
p_out_end = p_out + p_outpic->p[i_plane].i_pitch *
- p_outpic->p[i_plane].i_lines;
+ p_outpic->p[i_plane].i_lines;
while ( p_out < p_out_end )
{
- *p_out++ = (((*p_old++) * i_oldfactor) +
- ((*p_new++) * i_newfactor)) >> 7;
-
-// *p_out++ = (*p_old++ >> 1) + (*p_new++ >> 1);
-
+ p_out_line_end = p_out + p_outpic->p[i_plane].i_visible_pitch;
+
+ while ( p_out < p_out_line_end )
+ {
+ *p_out++ = (((*p_old++) * i_oldfactor) +
+ ((*p_new++) * i_newfactor)) >> 7;
+
+// *p_out++ = (*p_old++ >> 1) + (*p_new++ >> 1);
+ }
+
+ p_old += p_oldpic->p[i_plane].i_pitch
+ - p_oldpic->p[i_plane].i_visible_pitch;
+ p_new += p_newpic->p[i_plane].i_pitch
+ - p_newpic->p[i_plane].i_visible_pitch;
+ p_out += p_outpic->p[i_plane].i_pitch
+ - p_outpic->p[i_plane].i_visible_pitch;
}
}
}
+