Commit 8de0469a authored by Søren Bøg's avatar Søren Bøg Committed by Jean-Paul Saman

Blending - Added blend benchmarking filter

Blending - Added blend benchmarking filter
parent 44372f18
/*****************************************************************************
* blendbench.c : blending benchmark plugin for vlc
*****************************************************************************
* Copyright (C) 2007 the VideoLAN team
* $Id$
*
* Author: Søren Bøg <avacore@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
*****************************************************************************/
#include <errno.h>
#include <stdlib.h> /* malloc(), free() */
#include <string.h>
#include <math.h>
#include <vlc/vlc.h>
#include <vlc_sout.h>
#include <vlc_vout.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
*****************************************************************************/
#define LOOPS_TEXT N_("Number of time to blend")
#define LOOPS_LONGTEXT N_("The number of time the blend will be performed")
#define ALPHA_TEXT N_("Alpha of the blended image")
#define ALPHA_LONGTEXT N_("Alpha with which the blend image is blended")
#define BASE_IMAGE_TEXT N_("Image to be blended onto")
#define BASE_IMAGE_LONGTEXT N_("The image which will be used to blend onto")
#define BASE_CHROMA_TEXT N_("Chroma for the base image")
#define BASE_CHROMA_LONGTEXT N_("Chroma which the base image will be loaded in")
#define BLEND_IMAGE_TEXT N_("Image which will be blended.")
#define BLEND_IMAGE_LONGTEXT N_("The image blended onto the base image")
#define BLEND_CHROMA_TEXT N_("Chroma for the blend image")
#define BLEND_CHROMA_LONGTEXT N_("Chroma which the blend image will be loaded" \
"in")
#define CFG_PREFIX "blendbench-"
vlc_module_begin();
set_description( _("Blending benchmark filter") );
set_shortname( _("blendbench" ));
set_category( CAT_VIDEO );
set_subcategory( SUBCAT_VIDEO_VFILTER );
set_capability( "video filter2", 0 );
set_section( N_("Benchmarking"), NULL );
add_integer( CFG_PREFIX "loops", 1000, NULL, LOOPS_TEXT,
LOOPS_LONGTEXT, VLC_FALSE );
add_integer_with_range( CFG_PREFIX "alpha", 128, 0, 255, NULL, ALPHA_TEXT,
ALPHA_LONGTEXT, VLC_FALSE );
set_section( N_("Base image"), NULL );
add_file( CFG_PREFIX "base-image", NULL, NULL, BASE_IMAGE_TEXT,
BASE_IMAGE_LONGTEXT, VLC_FALSE );
add_string( CFG_PREFIX "base-chroma", "I420", NULL, BASE_CHROMA_TEXT,
BASE_CHROMA_LONGTEXT, VLC_FALSE );
set_section( N_("Blend image"), NULL );
add_file( CFG_PREFIX "blend-image", NULL, NULL, BLEND_IMAGE_TEXT,
BLEND_IMAGE_LONGTEXT, VLC_FALSE );
add_string( CFG_PREFIX "blend-chroma", "YUVA", NULL, BLEND_CHROMA_TEXT,
BLEND_CHROMA_LONGTEXT, VLC_FALSE );
set_callbacks( Create, Destroy );
vlc_module_end();
static const char *ppsz_filter_options[] = {
"loops", "alpha", "base-image", "base-chroma", "blend-image",
"blend-chroma", NULL
};
/*****************************************************************************
* filter_sys_t: filter method descriptor
*****************************************************************************/
struct filter_sys_t
{
vlc_bool_t b_done;
int i_loops, i_alpha;
picture_t *p_base_image;
picture_t *p_blend_image;
vlc_fourcc_t i_base_chroma;
vlc_fourcc_t i_blend_chroma;
};
static int LoadImage( vlc_object_t *p_this, picture_t **pp_pic,
vlc_fourcc_t i_chroma, char *psz_file, const char *psz_name )
{
image_handler_t *p_image;
video_format_t fmt_in, fmt_out;
memset( &fmt_in, 0, sizeof(video_format_t) );
memset( &fmt_out, 0, sizeof(video_format_t) );
fmt_out.i_chroma = i_chroma;
p_image = image_HandlerCreate( p_this );
*pp_pic = image_ReadUrl( p_image, psz_file, &fmt_in, &fmt_out );
image_HandlerDelete( p_image );
if( *pp_pic == NULL ) {
msg_Err( p_this, "Unable to load %s image", psz_name );
return VLC_EGENERIC;
}
msg_Dbg( p_this, "%s image has dim %d x %d (Y plane)", psz_name,
(*pp_pic)->p[Y_PLANE].i_visible_pitch,
(*pp_pic)->p[Y_PLANE].i_visible_lines );
}
/*****************************************************************************
* Create: allocates video thread output method
*****************************************************************************/
static int Create( vlc_object_t *p_this )
{
filter_t *p_filter = (filter_t *)p_this;
filter_sys_t *p_sys;
char *psz_temp;
/* 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_sys = p_filter->p_sys;
p_sys->b_done = VLC_FALSE;
p_filter->pf_video_filter = Filter;
/* needed to get options passed in transcode using the
* adjust{name=value} syntax */
config_ChainParse( p_filter, CFG_PREFIX, ppsz_filter_options,
p_filter->p_cfg );
p_sys->i_loops = var_CreateGetIntegerCommand( p_filter,
CFG_PREFIX "loops" );
p_sys->i_alpha = var_CreateGetIntegerCommand( p_filter,
CFG_PREFIX "alpha" );
psz_temp = var_CreateGetStringCommand( p_filter, CFG_PREFIX "base-chroma" );
p_sys->i_base_chroma = VLC_FOURCC( psz_temp[0], psz_temp[1],
psz_temp[2], psz_temp[3] );
LoadImage( p_this, &p_sys->p_base_image, p_sys->i_base_chroma,
var_CreateGetStringCommand( p_filter, CFG_PREFIX "base-image" ),
"Base" );
psz_temp = var_CreateGetStringCommand( p_filter,
CFG_PREFIX "blend-chroma" );
p_sys->i_blend_chroma = VLC_FOURCC( psz_temp[0], psz_temp[1],
psz_temp[2], psz_temp[3] );
LoadImage( p_this, &p_sys->p_blend_image, p_sys->i_blend_chroma,
var_CreateGetStringCommand( p_filter, CFG_PREFIX "blend-image" ),
"Blend" );
return VLC_SUCCESS;
}
/*****************************************************************************
* Destroy: destroy video thread output method
*****************************************************************************/
static void Destroy( vlc_object_t *p_this )
{
filter_t *p_filter = (filter_t *)p_this;
filter_sys_t *p_sys = p_filter->p_sys;
p_sys->p_base_image->pf_release( p_sys->p_base_image );
p_sys->p_blend_image->pf_release( p_sys->p_blend_image );
}
/*****************************************************************************
* Render: displays previously rendered output
*****************************************************************************/
static picture_t *Filter( filter_t *p_filter, picture_t *p_pic )
{
filter_sys_t *p_sys = p_filter->p_sys;
if( p_sys->b_done )
{
return p_pic;
}
filter_t *p_blend;
p_blend = vlc_object_create( p_filter, VLC_OBJECT_FILTER );
vlc_object_attach( p_blend, p_filter );
p_blend->fmt_out.video = p_sys->p_base_image->format;
p_blend->fmt_in.video = p_sys->p_blend_image->format;
p_blend->p_module = module_Need( p_blend, "video blending", 0, 0 );
mtime_t time = mdate();
for( int i_iter = 0; i_iter < p_sys->i_loops; ++i_iter )
{
p_blend->pf_video_blend( p_blend, p_sys->p_base_image,
p_sys->p_base_image, p_sys->p_blend_image, 0,
0, p_sys->i_alpha );
}
time = mdate() - time;
msg_Info( p_filter, "Blended %d images in %f sec.", p_sys->i_loops,
time / 1000000.0f );
msg_Info( p_filter, "Speed is: %f images/second, %f pixels/second",
(float) p_sys->i_loops / time * 1000000,
(float) p_sys->i_loops / time * 1000000 *
p_sys->p_blend_image->p[Y_PLANE].i_visible_pitch *
p_sys->p_blend_image->p[Y_PLANE].i_visible_lines );
module_Unneed( p_blend, p_blend->p_module );
vlc_object_detach( p_blend );
vlc_object_destroy( p_blend );
p_sys->b_done = VLC_TRUE;
return p_pic;
}
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