1 /*****************************************************************************
2 * postproc.c: video postprocessing using libpostproc
3 *****************************************************************************
4 * Copyright (C) 1999-2009 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>
32 #include <vlc_filter.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 #define NAME_LONGTEXT NAME_TEXT
68 #define FILTER_PREFIX "postproc-"
70 /*****************************************************************************
72 *****************************************************************************/
74 set_description( N_("Video post processing filter") )
75 set_shortname( N_("Postproc" ) )
76 add_shortcut( "postprocess" ) /* name is "postproc" */
78 set_category( CAT_VIDEO )
79 set_subcategory( SUBCAT_VIDEO_VFILTER )
81 set_capability( "video filter2", 0 )
83 set_callbacks( OpenPostproc, ClosePostproc )
85 add_integer_with_range( FILTER_PREFIX "q", PP_QUALITY_MAX, 0,
86 PP_QUALITY_MAX, NULL, Q_TEXT, Q_LONGTEXT, false )
87 add_deprecated_alias( "ffmpeg-pp-q" )
89 add_string( FILTER_PREFIX "name", "default", NULL, NAME_TEXT,
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 /* Never changes after init */
104 pp_context_t *pp_context;
106 /* Set to NULL if post processing is disabled */
109 /* Set to true if previous pic had a quant matrix
110 (used to prevent spamming warning messages) */
113 /* Lock when using or changing pp_mode */
118 /*****************************************************************************
119 * OpenPostproc: probe and open the postproc
120 *****************************************************************************/
121 static int OpenPostproc( vlc_object_t *p_this )
123 filter_t *p_filter = (filter_t *)p_this;
125 vlc_value_t val, val_orig, text;
126 unsigned i_cpu = vlc_CPU();
129 if( p_filter->fmt_in.video.i_chroma != p_filter->fmt_out.video.i_chroma ||
130 p_filter->fmt_in.video.i_height != p_filter->fmt_out.video.i_height ||
131 p_filter->fmt_in.video.i_width != p_filter->fmt_out.video.i_width )
133 msg_Err( p_filter, "Filter input and output formats must be identical" );
137 /* Set CPU capabilities */
138 if( i_cpu & CPU_CAPABILITY_MMX )
139 i_flags |= PP_CPU_CAPS_MMX;
140 if( i_cpu & CPU_CAPABILITY_MMXEXT )
141 i_flags |= PP_CPU_CAPS_MMX2;
142 if( i_cpu & CPU_CAPABILITY_3DNOW )
143 i_flags |= PP_CPU_CAPS_3DNOW;
144 if( i_cpu & CPU_CAPABILITY_ALTIVEC )
145 i_flags |= PP_CPU_CAPS_ALTIVEC;
147 switch( p_filter->fmt_in.video.i_chroma )
151 /* case VLC_CODEC_YUVA:
152 FIXME: Should work but alpha plane needs to be copied manually and
153 I'm kind of feeling too lazy to write the code to do that ATM
154 (i_pitch vs i_visible_pitch...). */
155 i_flags |= PP_FORMAT_444;
159 i_flags |= PP_FORMAT_422;
162 i_flags |= PP_FORMAT_411;
167 i_flags |= PP_FORMAT_420;
170 msg_Err( p_filter, "Unsupported input chroma (%4s)",
171 (char*)&p_filter->fmt_in.video.i_chroma );
175 p_sys = malloc( sizeof( filter_sys_t ) );
176 if( !p_sys ) return VLC_ENOMEM;
177 p_filter->p_sys = p_sys;
179 p_sys->pp_context = pp_get_context( p_filter->fmt_in.video.i_width,
180 p_filter->fmt_in.video.i_height,
182 if( !p_sys->pp_context )
184 msg_Err( p_filter, "Error while creating post processing context." );
189 config_ChainParse( p_filter, FILTER_PREFIX, ppsz_filter_options,
192 var_Create( p_filter, FILTER_PREFIX "q",
193 VLC_VAR_INTEGER | VLC_VAR_HASCHOICE | VLC_VAR_DOINHERIT |
195 /* For some obscure reason the VLC_VAR_ISCOMMAND isn't taken into account
196 in during var_Create */
197 var_Change( p_filter, FILTER_PREFIX "q", VLC_VAR_SETISCOMMAND, NULL, NULL );
199 text.psz_string = _("Post processing");
200 var_Change( p_filter, FILTER_PREFIX "q", VLC_VAR_SETTEXT, &text, NULL );
202 var_Get( p_filter, FILTER_PREFIX "q", &val_orig );
203 var_Change( p_filter, FILTER_PREFIX "q", VLC_VAR_DELCHOICE, &val_orig, NULL );
205 val.psz_string = var_GetNonEmptyString( p_filter, FILTER_PREFIX "name" );
208 p_sys->pp_mode = pp_get_mode_by_name_and_quality( val.psz_string ?
213 if( !p_sys->pp_mode )
215 msg_Err( p_filter, "Error while creating post processing mode." );
216 free( val.psz_string );
217 var_Destroy( p_filter, FILTER_PREFIX "q" );
218 pp_free_context( p_sys->pp_context );
225 p_sys->pp_mode = NULL;
227 free( val.psz_string );
229 for( val.i_int = 0; val.i_int <= PP_QUALITY_MAX; val.i_int++ )
234 text.psz_string = _("Disable");
237 text.psz_string = _("Lowest");
240 text.psz_string = _("Highest");
243 text.psz_string = NULL;
246 var_Change( p_filter, FILTER_PREFIX "q", VLC_VAR_ADDCHOICE,
247 &val, text.psz_string?&text:NULL );
250 vlc_mutex_init( &p_sys->lock );
252 /* Add the callback at the end to prevent crashes */
253 var_AddCallback( p_filter, FILTER_PREFIX "q", PPQCallback, NULL );
254 var_AddCallback( p_filter, FILTER_PREFIX "name", PPNameCallback, NULL );
256 p_filter->pf_video_filter = PostprocPict;
257 p_sys->b_had_matrix = true;
262 /*****************************************************************************
264 *****************************************************************************/
265 static void ClosePostproc( vlc_object_t *p_this )
267 filter_t *p_filter = (filter_t *)p_this;
268 filter_sys_t *p_sys = p_filter->p_sys;
270 /* delete the callback before destroying the mutex */
271 var_DelCallback( p_filter, FILTER_PREFIX "q", PPQCallback, NULL );
272 var_DelCallback( p_filter, FILTER_PREFIX "name", PPNameCallback, NULL );
274 /* Destroy the resources */
275 vlc_mutex_destroy( &p_sys->lock );
276 pp_free_context( p_sys->pp_context );
277 if( p_sys->pp_mode ) pp_free_mode( p_sys->pp_mode );
281 /*****************************************************************************
283 *****************************************************************************/
284 static picture_t *PostprocPict( filter_t *p_filter, picture_t *p_pic )
286 filter_sys_t *p_sys = p_filter->p_sys;
288 const uint8_t *src[3];
291 int i_src_stride[3], i_dst_stride[3];
293 picture_t *p_outpic = filter_NewPicture( p_filter );
296 picture_Release( p_pic );
300 /* Lock to prevent issues if pp_mode is changed */
301 vlc_mutex_lock( &p_sys->lock );
302 if( !p_sys->pp_mode )
304 vlc_mutex_unlock( &p_sys->lock );
305 picture_CopyPixels( p_outpic, p_pic );
306 return CopyInfoAndRelease( p_outpic, p_pic );
310 for( i_plane = 0; i_plane < p_pic->i_planes; i_plane++ )
312 src[i_plane] = p_pic->p[i_plane].p_pixels;
313 dst[i_plane] = p_outpic->p[i_plane].p_pixels;
315 /* I'm not sure what happens if i_pitch != i_visible_pitch ...
316 * at least it shouldn't crash. */
317 i_src_stride[i_plane] = p_pic->p[i_plane].i_pitch;
318 i_dst_stride[i_plane] = p_outpic->p[i_plane].i_pitch;
321 if( !p_pic->p_q && p_sys->b_had_matrix )
323 msg_Warn( p_filter, "Quantification table was not set by video decoder. Postprocessing won't look good." );
324 p_sys->b_had_matrix = false;
326 else if( p_pic->p_q )
328 p_sys->b_had_matrix = true;
331 pp_postprocess( src, i_src_stride, dst, i_dst_stride,
332 p_filter->fmt_in.video.i_width,
333 p_filter->fmt_in.video.i_height,
334 p_pic->p_q, p_pic->i_qstride,
335 p_sys->pp_mode, p_sys->pp_context,
336 p_pic->i_qtype == QTYPE_MPEG2 ? PP_PICT_TYPE_QP2 : 0 );
337 vlc_mutex_unlock( &p_sys->lock );
339 return CopyInfoAndRelease( p_outpic, p_pic );
342 /*****************************************************************************
343 * PPChangeMode: change the current mode and quality
344 *****************************************************************************/
345 static void PPChangeMode( filter_t *p_filter, const char *psz_name,
348 filter_sys_t *p_sys = p_filter->p_sys;
349 vlc_mutex_lock( &p_sys->lock );
352 pp_mode_t *pp_mode = pp_get_mode_by_name_and_quality( psz_name ?
358 pp_free_mode( p_sys->pp_mode );
359 p_sys->pp_mode = pp_mode;
362 msg_Warn( p_filter, "Error while changing post processing mode. "
363 "Keeping previous mode." );
367 pp_free_mode( p_sys->pp_mode );
368 p_sys->pp_mode = NULL;
370 vlc_mutex_unlock( &p_sys->lock );
373 static int PPQCallback( vlc_object_t *p_this, const char *psz_var,
374 vlc_value_t oldval, vlc_value_t newval, void *p_data )
376 VLC_UNUSED(psz_var); VLC_UNUSED(oldval); VLC_UNUSED(p_data);
377 filter_t *p_filter = (filter_t *)p_this;
379 char *psz_name = var_GetNonEmptyString( p_filter, FILTER_PREFIX "name" );
380 PPChangeMode( p_filter, psz_name, newval.i_int );
385 static int PPNameCallback( vlc_object_t *p_this, const char *psz_var,
386 vlc_value_t oldval, vlc_value_t newval, void *p_data )
388 VLC_UNUSED(psz_var); VLC_UNUSED(oldval); VLC_UNUSED(p_data);
389 filter_t *p_filter = (filter_t *)p_this;
391 int i_quality = var_GetInteger( p_filter, FILTER_PREFIX "q" );
392 PPChangeMode( p_filter, *newval.psz_string ? newval.psz_string : NULL,