1 /*****************************************************************************
2 * postproc.c: video postprocessing using libpostproc
3 *****************************************************************************
4 * Copyright (C) 1999-2008 the VideoLAN team
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
8 * Gildas Bazin <gbazin@netcourrier.com>
9 * Antoine Cellerier <dionoea at videolan dot org>
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
24 *****************************************************************************/
30 #include <vlc_common.h>
31 #include <vlc_plugin.h>
34 #include "filter_picture.h"
36 #ifdef HAVE_POSTPROC_POSTPROCESS_H
37 # include <postproc/postprocess.h>
39 # include <libpostproc/postprocess.h>
42 #ifndef PP_CPU_CAPS_ALTIVEC
43 # define PP_CPU_CAPS_ALTIVEC 0
46 /*****************************************************************************
48 *****************************************************************************/
49 static int OpenPostproc( vlc_object_t * );
50 static void ClosePostproc( vlc_object_t * );
52 static picture_t *PostprocPict( filter_t *, picture_t * );
54 static int PPQCallback( vlc_object_t *, char const *,
55 vlc_value_t, vlc_value_t, void * );
56 static int PPNameCallback( vlc_object_t *, char const *,
57 vlc_value_t, vlc_value_t, void * );
59 #define Q_TEXT N_("Post processing quality")
60 #define Q_LONGTEXT N_( \
61 "Quality of post processing. Valid range is 0 to 6\n" \
62 "Higher levels require considerable more CPU power, but produce " \
63 "better looking pictures." )
65 #define NAME_TEXT N_("FFmpeg post processing filter chains")
66 /* defined by libpostproc */
67 #define NAME_LONGTEXT pp_help
69 #define FILTER_PREFIX "postproc-"
71 /*****************************************************************************
73 *****************************************************************************/
75 set_description( N_("Video post processing filter") )
76 set_shortname( N_("Postproc" ) )
77 add_shortcut( "postprocess" ) /* name is "postproc" */
79 set_category( CAT_VIDEO )
80 set_subcategory( SUBCAT_VIDEO_VFILTER )
82 set_capability( "video filter2", 0 )
84 set_callbacks( OpenPostproc, ClosePostproc )
86 add_integer_with_range( FILTER_PREFIX "q", PP_QUALITY_MAX, 0,
87 PP_QUALITY_MAX, NULL, Q_TEXT, Q_LONGTEXT, false );
88 add_deprecated_alias( "ffmpeg-pp-q" )
89 add_string( FILTER_PREFIX "name", "default", NULL, NAME_TEXT,
90 NAME_LONGTEXT, true );
91 add_deprecated_alias( "ffmpeg-pp-name" )
94 static const char *const ppsz_filter_options[] = {
98 /*****************************************************************************
99 * filter_sys_t : libpostproc video postprocessing descriptor
100 *****************************************************************************/
103 pp_context_t *pp_context; /* Never changes after init */
104 pp_mode_t *pp_mode; /* Set to NULL if post processing is disabled */
106 bool b_had_matrix; /* Set to true if previous pic had a quant matrix (used to prevent spamming warning messages */
108 vlc_mutex_t lock; /* Lock when using or changing pp_mode */
112 /*****************************************************************************
113 * OpenPostproc: probe and open the postproc
114 *****************************************************************************/
115 static int OpenPostproc( vlc_object_t *p_this )
117 filter_t *p_filter = (filter_t *)p_this;
119 vlc_value_t val, val_orig, text;
120 unsigned i_cpu = vlc_CPU();
123 if( p_filter->fmt_in.video.i_chroma != p_filter->fmt_out.video.i_chroma ||
124 p_filter->fmt_in.video.i_height != p_filter->fmt_out.video.i_height ||
125 p_filter->fmt_in.video.i_width != p_filter->fmt_out.video.i_width )
127 msg_Err( p_filter, "Filter input and output formats must be identical" );
131 /* Set CPU capabilities */
132 if( i_cpu & CPU_CAPABILITY_MMX )
133 i_flags |= PP_CPU_CAPS_MMX;
134 if( i_cpu & CPU_CAPABILITY_MMXEXT )
135 i_flags |= PP_CPU_CAPS_MMX2;
136 if( i_cpu & CPU_CAPABILITY_3DNOW )
137 i_flags |= PP_CPU_CAPS_3DNOW;
138 if( i_cpu & CPU_CAPABILITY_ALTIVEC )
139 i_flags |= PP_CPU_CAPS_ALTIVEC;
141 switch( p_filter->fmt_in.video.i_chroma )
143 case VLC_FOURCC('I','4','4','4'):
144 case VLC_FOURCC('J','4','4','4'):
145 /* case VLC_FOURCC('Y','U','V','A'): FIXME Should work but alpha plane needs to be copied manually and I'm kind of feeling too lazy to write the code to do that ATM (i_pitch vs i_visible_pitch...). */
146 i_flags |= PP_FORMAT_444;
148 case VLC_FOURCC('I','4','2','2'):
149 case VLC_FOURCC('J','4','2','2'):
150 i_flags |= PP_FORMAT_422;
152 case VLC_FOURCC('I','4','1','1'):
153 i_flags |= PP_FORMAT_411;
155 case VLC_FOURCC('I','4','2','0'):
156 case VLC_FOURCC('I','Y','U','V'):
157 case VLC_FOURCC('J','4','2','0'):
158 case VLC_FOURCC('Y','V','1','2'):
159 i_flags |= PP_FORMAT_420;
162 msg_Err( p_filter, "Unsupported input chroma (%4s)",
163 (char*)&p_filter->fmt_in.video.i_chroma );
167 p_sys = malloc( sizeof( filter_sys_t ) );
168 if( !p_sys ) return VLC_ENOMEM;
169 p_filter->p_sys = p_sys;
171 p_sys->pp_context = pp_get_context( p_filter->fmt_in.video.i_width,
172 p_filter->fmt_in.video.i_height,
174 if( !p_sys->pp_context )
176 msg_Err( p_filter, "Error while creating post processing context." );
181 config_ChainParse( p_filter, FILTER_PREFIX, ppsz_filter_options,
184 var_Create( p_filter, FILTER_PREFIX "q",
185 VLC_VAR_INTEGER | VLC_VAR_HASCHOICE | VLC_VAR_DOINHERIT |
187 var_Change( p_filter, FILTER_PREFIX "q", VLC_VAR_SETISCOMMAND, NULL, NULL ); /* For some obscure reason the VLC_VAR_ISCOMMAND isn't taken into account in during var_Create */
188 var_AddCallback( p_filter, FILTER_PREFIX "q", PPQCallback, NULL );
189 text.psz_string = _("Post processing");
190 var_Change( p_filter, FILTER_PREFIX "q", VLC_VAR_SETTEXT, &text, NULL );
192 var_Get( p_filter, FILTER_PREFIX "q", &val_orig );
193 var_Change( p_filter, FILTER_PREFIX "q", VLC_VAR_DELCHOICE, &val_orig, NULL );
195 val.psz_string = var_CreateGetNonEmptyStringCommand(
196 p_filter, FILTER_PREFIX "name" );
197 var_AddCallback( p_filter, FILTER_PREFIX "name", PPNameCallback, NULL );
200 p_sys->pp_mode = pp_get_mode_by_name_and_quality( val.psz_string?:
204 if( !p_sys->pp_mode )
206 msg_Err( p_filter, "Error while creating post processing mode." );
207 free( val.psz_string );
208 var_Destroy( p_filter, FILTER_PREFIX "q" );
209 pp_free_context( p_sys->pp_context );
216 p_sys->pp_mode = NULL;
218 free( val.psz_string );
220 for( val.i_int = 0; val.i_int <= PP_QUALITY_MAX; val.i_int++ )
225 text.psz_string = _("Disable");
228 text.psz_string = _("Lowest");
231 text.psz_string = _("Highest");
234 text.psz_string = NULL;
237 var_Change( p_filter, FILTER_PREFIX "q", VLC_VAR_ADDCHOICE,
238 &val, text.psz_string?&text:NULL );
241 vlc_mutex_init( &p_sys->lock );
243 p_filter->pf_video_filter = PostprocPict;
244 p_sys->b_had_matrix = true;
249 /*****************************************************************************
251 *****************************************************************************/
252 static void ClosePostproc( vlc_object_t *p_this )
254 filter_t *p_filter = (filter_t *)p_this;
255 filter_sys_t *p_sys = p_filter->p_sys;
256 vlc_mutex_destroy( &p_sys->lock );
257 pp_free_context( p_sys->pp_context );
258 if( p_sys->pp_mode ) pp_free_mode( p_sys->pp_mode );
262 /*****************************************************************************
264 *****************************************************************************/
265 static picture_t *PostprocPict( filter_t *p_filter, picture_t *p_pic )
267 filter_sys_t *p_sys = p_filter->p_sys;
269 const uint8_t *src[3];
272 int i_src_stride[3], i_dst_stride[3];
274 vlc_mutex_lock( &p_sys->lock ); /* Lock to prevent issues if pp_mode is changed */
275 if( !p_sys->pp_mode )
277 vlc_mutex_unlock( &p_sys->lock );
281 picture_t *p_outpic = filter_NewPicture( p_filter );
284 picture_Release( p_pic );
285 vlc_mutex_unlock( &p_sys->lock );
289 for( i_plane = 0; i_plane < p_pic->i_planes; i_plane++ )
291 src[i_plane] = p_pic->p[i_plane].p_pixels;
292 dst[i_plane] = p_outpic->p[i_plane].p_pixels;
294 /* I'm not sure what happens if i_pitch != i_visible_pitch ...
295 * at least it shouldn't crash. */
296 i_src_stride[i_plane] = p_pic->p[i_plane].i_pitch;
297 i_dst_stride[i_plane] = p_outpic->p[i_plane].i_pitch;
300 if( !p_pic->p_q && p_sys->b_had_matrix )
302 msg_Warn( p_filter, "Quantification table was not set by video decoder. Postprocessing won't look good." );
303 p_sys->b_had_matrix = false;
305 else if( p_pic->p_q )
307 p_sys->b_had_matrix = true;
310 pp_postprocess( src, i_src_stride, dst, i_dst_stride,
311 p_filter->fmt_in.video.i_width,
312 p_filter->fmt_in.video.i_height,
313 p_pic->p_q, p_pic->i_qstride,
314 p_sys->pp_mode, p_sys->pp_context,
315 p_pic->i_qtype == QTYPE_MPEG2 ? PP_PICT_TYPE_QP2 : 0 );
316 vlc_mutex_unlock( &p_sys->lock );
318 return CopyInfoAndRelease( p_outpic, p_pic );
321 /*****************************************************************************
323 *****************************************************************************/
324 static void PPChangeMode( filter_t *p_filter, const char *psz_name,
327 filter_sys_t *p_sys = p_filter->p_sys;
328 vlc_mutex_lock( &p_sys->lock );
331 pp_mode_t *pp_mode = pp_get_mode_by_name_and_quality( psz_name?:
336 pp_free_mode( p_sys->pp_mode );
337 p_sys->pp_mode = pp_mode;
340 msg_Warn( p_filter, "Error while changing post processing mode. "
341 "Keeping previous mode." );
345 pp_free_mode( p_sys->pp_mode );
346 p_sys->pp_mode = NULL;
348 vlc_mutex_unlock( &p_sys->lock );
351 static int PPQCallback( vlc_object_t *p_this, const char *psz_var,
352 vlc_value_t oldval, vlc_value_t newval, void *p_data )
354 VLC_UNUSED(psz_var); VLC_UNUSED(oldval); VLC_UNUSED(p_data);
355 filter_t *p_filter = (filter_t *)p_this;
357 char *psz_name = var_GetNonEmptyString( p_filter, FILTER_PREFIX "name" );
358 PPChangeMode( p_filter, psz_name, newval.i_int );
363 static int PPNameCallback( vlc_object_t *p_this, const char *psz_var,
364 vlc_value_t oldval, vlc_value_t newval, void *p_data )
366 VLC_UNUSED(psz_var); VLC_UNUSED(oldval); VLC_UNUSED(p_data);
367 filter_t *p_filter = (filter_t *)p_this;
369 int i_quality = var_GetInteger( p_filter, FILTER_PREFIX "q" );
370 PPChangeMode( p_filter, *newval.psz_string?newval.psz_string:NULL, i_quality );