1 /*****************************************************************************
2 * blendbench.c : blending benchmark plugin for vlc
3 *****************************************************************************
4 * Copyright (C) 2007 the VideoLAN team
7 * Author: Søren Bøg <avacore@videolan.org>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
36 #include "vlc_filter.h"
37 #include "vlc_image.h"
39 /*****************************************************************************
41 *****************************************************************************/
42 static int Create( vlc_object_t * );
43 static void Destroy( vlc_object_t * );
45 static picture_t *Filter( filter_t *, picture_t * );
47 /*****************************************************************************
49 *****************************************************************************/
51 #define LOOPS_TEXT N_("Number of time to blend")
52 #define LOOPS_LONGTEXT N_("The number of time the blend will be performed")
54 #define ALPHA_TEXT N_("Alpha of the blended image")
55 #define ALPHA_LONGTEXT N_("Alpha with which the blend image is blended")
57 #define BASE_IMAGE_TEXT N_("Image to be blended onto")
58 #define BASE_IMAGE_LONGTEXT N_("The image which will be used to blend onto")
60 #define BASE_CHROMA_TEXT N_("Chroma for the base image")
61 #define BASE_CHROMA_LONGTEXT N_("Chroma which the base image will be loaded in")
63 #define BLEND_IMAGE_TEXT N_("Image which will be blended.")
64 #define BLEND_IMAGE_LONGTEXT N_("The image blended onto the base image")
66 #define BLEND_CHROMA_TEXT N_("Chroma for the blend image")
67 #define BLEND_CHROMA_LONGTEXT N_("Chroma which the blend image will be loaded" \
70 #define CFG_PREFIX "blendbench-"
73 set_description( _("Blending benchmark filter") );
74 set_shortname( _("blendbench" ));
75 set_category( CAT_VIDEO );
76 set_subcategory( SUBCAT_VIDEO_VFILTER );
77 set_capability( "video filter2", 0 );
79 set_section( N_("Benchmarking"), NULL );
80 add_integer( CFG_PREFIX "loops", 1000, NULL, LOOPS_TEXT,
81 LOOPS_LONGTEXT, VLC_FALSE );
82 add_integer_with_range( CFG_PREFIX "alpha", 128, 0, 255, NULL, ALPHA_TEXT,
83 ALPHA_LONGTEXT, VLC_FALSE );
85 set_section( N_("Base image"), NULL );
86 add_file( CFG_PREFIX "base-image", NULL, NULL, BASE_IMAGE_TEXT,
87 BASE_IMAGE_LONGTEXT, VLC_FALSE );
88 add_string( CFG_PREFIX "base-chroma", "I420", NULL, BASE_CHROMA_TEXT,
89 BASE_CHROMA_LONGTEXT, VLC_FALSE );
91 set_section( N_("Blend image"), NULL );
92 add_file( CFG_PREFIX "blend-image", NULL, NULL, BLEND_IMAGE_TEXT,
93 BLEND_IMAGE_LONGTEXT, VLC_FALSE );
94 add_string( CFG_PREFIX "blend-chroma", "YUVA", NULL, BLEND_CHROMA_TEXT,
95 BLEND_CHROMA_LONGTEXT, VLC_FALSE );
97 set_callbacks( Create, Destroy );
100 static const char *ppsz_filter_options[] = {
101 "loops", "alpha", "base-image", "base-chroma", "blend-image",
105 /*****************************************************************************
106 * filter_sys_t: filter method descriptor
107 *****************************************************************************/
111 int i_loops, i_alpha;
113 picture_t *p_base_image;
114 picture_t *p_blend_image;
116 vlc_fourcc_t i_base_chroma;
117 vlc_fourcc_t i_blend_chroma;
120 static int LoadImage( vlc_object_t *p_this, picture_t **pp_pic,
121 vlc_fourcc_t i_chroma, char *psz_file, const char *psz_name )
123 image_handler_t *p_image;
124 video_format_t fmt_in, fmt_out;
126 memset( &fmt_in, 0, sizeof(video_format_t) );
127 memset( &fmt_out, 0, sizeof(video_format_t) );
129 fmt_out.i_chroma = i_chroma;
130 p_image = image_HandlerCreate( p_this );
131 *pp_pic = image_ReadUrl( p_image, psz_file, &fmt_in, &fmt_out );
132 image_HandlerDelete( p_image );
134 if( *pp_pic == NULL ) {
135 msg_Err( p_this, "Unable to load %s image", psz_name );
139 msg_Dbg( p_this, "%s image has dim %d x %d (Y plane)", psz_name,
140 (*pp_pic)->p[Y_PLANE].i_visible_pitch,
141 (*pp_pic)->p[Y_PLANE].i_visible_lines );
146 /*****************************************************************************
147 * Create: allocates video thread output method
148 *****************************************************************************/
149 static int Create( vlc_object_t *p_this )
151 filter_t *p_filter = (filter_t *)p_this;
155 /* Allocate structure */
156 p_filter->p_sys = malloc( sizeof( filter_sys_t ) );
157 if( p_filter->p_sys == NULL )
159 msg_Err( p_filter, "out of memory" );
162 p_sys = p_filter->p_sys;
163 p_sys->b_done = VLC_FALSE;
165 p_filter->pf_video_filter = Filter;
167 /* needed to get options passed in transcode using the
168 * adjust{name=value} syntax */
169 config_ChainParse( p_filter, CFG_PREFIX, ppsz_filter_options,
172 p_sys->i_loops = var_CreateGetIntegerCommand( p_filter,
173 CFG_PREFIX "loops" );
174 p_sys->i_alpha = var_CreateGetIntegerCommand( p_filter,
175 CFG_PREFIX "alpha" );
177 psz_temp = var_CreateGetStringCommand( p_filter, CFG_PREFIX "base-chroma" );
178 p_sys->i_base_chroma = VLC_FOURCC( psz_temp[0], psz_temp[1],
179 psz_temp[2], psz_temp[3] );
180 LoadImage( p_this, &p_sys->p_base_image, p_sys->i_base_chroma,
181 var_CreateGetStringCommand( p_filter, CFG_PREFIX "base-image" ),
184 psz_temp = var_CreateGetStringCommand( p_filter,
185 CFG_PREFIX "blend-chroma" );
186 p_sys->i_blend_chroma = VLC_FOURCC( psz_temp[0], psz_temp[1],
187 psz_temp[2], psz_temp[3] );
188 LoadImage( p_this, &p_sys->p_blend_image, p_sys->i_blend_chroma,
189 var_CreateGetStringCommand( p_filter, CFG_PREFIX "blend-image" ),
195 /*****************************************************************************
196 * Destroy: destroy video thread output method
197 *****************************************************************************/
198 static void Destroy( vlc_object_t *p_this )
200 filter_t *p_filter = (filter_t *)p_this;
201 filter_sys_t *p_sys = p_filter->p_sys;
203 p_sys->p_base_image->pf_release( p_sys->p_base_image );
204 p_sys->p_blend_image->pf_release( p_sys->p_blend_image );
207 /*****************************************************************************
208 * Render: displays previously rendered output
209 *****************************************************************************/
210 static picture_t *Filter( filter_t *p_filter, picture_t *p_pic )
212 filter_sys_t *p_sys = p_filter->p_sys;
221 p_blend = vlc_object_create( p_filter, VLC_OBJECT_FILTER );
222 vlc_object_attach( p_blend, p_filter );
223 p_blend->fmt_out.video = p_sys->p_base_image->format;
224 p_blend->fmt_in.video = p_sys->p_blend_image->format;
225 p_blend->p_module = module_Need( p_blend, "video blending", 0, 0 );
227 mtime_t time = mdate();
228 for( int i_iter = 0; i_iter < p_sys->i_loops; ++i_iter )
230 p_blend->pf_video_blend( p_blend, p_sys->p_base_image,
231 p_sys->p_base_image, p_sys->p_blend_image, 0,
234 time = mdate() - time;
236 msg_Info( p_filter, "Blended %d images in %f sec.", p_sys->i_loops,
238 msg_Info( p_filter, "Speed is: %f images/second, %f pixels/second",
239 (float) p_sys->i_loops / time * 1000000,
240 (float) p_sys->i_loops / time * 1000000 *
241 p_sys->p_blend_image->p[Y_PLANE].i_visible_pitch *
242 p_sys->p_blend_image->p[Y_PLANE].i_visible_lines );
244 module_Unneed( p_blend, p_blend->p_module );
246 vlc_object_detach( p_blend );
247 vlc_object_release( p_blend );
249 p_sys->b_done = VLC_TRUE;