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>
35 #include "filter_picture.h"
37 #ifdef HAVE_POSTPROC_POSTPROCESS_H
38 # include <postproc/postprocess.h>
40 # include <libpostproc/postprocess.h>
43 #ifndef PP_CPU_CAPS_ALTIVEC
44 # define PP_CPU_CAPS_ALTIVEC 0
47 /*****************************************************************************
49 *****************************************************************************/
50 static int OpenPostproc( vlc_object_t * );
51 static void ClosePostproc( vlc_object_t * );
53 static picture_t *PostprocPict( filter_t *, picture_t * );
55 static int PPQCallback( vlc_object_t *, char const *,
56 vlc_value_t, vlc_value_t, void * );
57 static int PPNameCallback( vlc_object_t *, char const *,
58 vlc_value_t, vlc_value_t, void * );
60 #define Q_TEXT N_("Post processing quality")
61 #define Q_LONGTEXT N_( \
62 "Quality of post processing. Valid range is 0 to 6\n" \
63 "Higher levels require considerable more CPU power, but produce " \
64 "better looking pictures." )
66 #define NAME_TEXT N_("FFmpeg post processing filter chains")
67 #define NAME_LONGTEXT NAME_TEXT
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" )
90 add_string( FILTER_PREFIX "name", "default", NULL, NAME_TEXT,
92 add_deprecated_alias( "ffmpeg-pp-name" )
95 static const char *const ppsz_filter_options[] = {
99 /*****************************************************************************
100 * filter_sys_t : libpostproc video postprocessing descriptor
101 *****************************************************************************/
104 /* Never changes after init */
105 pp_context_t *pp_context;
107 /* Set to NULL if post processing is disabled */
110 /* Set to true if previous pic had a quant matrix
111 (used to prevent spamming warning messages) */
114 /* Lock when using or changing pp_mode */
119 /*****************************************************************************
120 * OpenPostproc: probe and open the postproc
121 *****************************************************************************/
122 static int OpenPostproc( vlc_object_t *p_this )
124 filter_t *p_filter = (filter_t *)p_this;
126 vlc_value_t val, val_orig, text;
127 unsigned i_cpu = vlc_CPU();
130 if( p_filter->fmt_in.video.i_chroma != p_filter->fmt_out.video.i_chroma ||
131 p_filter->fmt_in.video.i_height != p_filter->fmt_out.video.i_height ||
132 p_filter->fmt_in.video.i_width != p_filter->fmt_out.video.i_width )
134 msg_Err( p_filter, "Filter input and output formats must be identical" );
138 /* Set CPU capabilities */
139 if( i_cpu & CPU_CAPABILITY_MMX )
140 i_flags |= PP_CPU_CAPS_MMX;
141 if( i_cpu & CPU_CAPABILITY_MMXEXT )
142 i_flags |= PP_CPU_CAPS_MMX2;
143 if( i_cpu & CPU_CAPABILITY_3DNOW )
144 i_flags |= PP_CPU_CAPS_3DNOW;
145 if( i_cpu & CPU_CAPABILITY_ALTIVEC )
146 i_flags |= PP_CPU_CAPS_ALTIVEC;
148 switch( p_filter->fmt_in.video.i_chroma )
152 /* case VLC_CODEC_YUVA:
153 FIXME: Should work but alpha plane needs to be copied manually and
154 I'm kind of feeling too lazy to write the code to do that ATM
155 (i_pitch vs i_visible_pitch...). */
156 i_flags |= PP_FORMAT_444;
160 i_flags |= PP_FORMAT_422;
163 i_flags |= PP_FORMAT_411;
168 i_flags |= PP_FORMAT_420;
171 msg_Err( p_filter, "Unsupported input chroma (%4.4s)",
172 (char*)&p_filter->fmt_in.video.i_chroma );
176 p_sys = malloc( sizeof( filter_sys_t ) );
177 if( !p_sys ) return VLC_ENOMEM;
178 p_filter->p_sys = p_sys;
180 p_sys->pp_context = pp_get_context( p_filter->fmt_in.video.i_width,
181 p_filter->fmt_in.video.i_height,
183 if( !p_sys->pp_context )
185 msg_Err( p_filter, "Error while creating post processing context." );
190 config_ChainParse( p_filter, FILTER_PREFIX, ppsz_filter_options,
193 var_Create( p_filter, FILTER_PREFIX "q", VLC_VAR_INTEGER |
194 VLC_VAR_HASCHOICE | VLC_VAR_DOINHERIT | VLC_VAR_ISCOMMAND );
196 text.psz_string = _("Post processing");
197 var_Change( p_filter, FILTER_PREFIX "q", VLC_VAR_SETTEXT, &text, NULL );
199 var_Get( p_filter, FILTER_PREFIX "q", &val_orig );
200 var_Change( p_filter, FILTER_PREFIX "q", VLC_VAR_DELCHOICE, &val_orig, NULL );
202 val.psz_string = var_GetNonEmptyString( p_filter, FILTER_PREFIX "name" );
205 p_sys->pp_mode = pp_get_mode_by_name_and_quality( val.psz_string ?
210 if( !p_sys->pp_mode )
212 msg_Err( p_filter, "Error while creating post processing mode." );
213 free( val.psz_string );
214 pp_free_context( p_sys->pp_context );
221 p_sys->pp_mode = NULL;
223 free( val.psz_string );
225 for( val.i_int = 0; val.i_int <= PP_QUALITY_MAX; val.i_int++ )
230 text.psz_string = _("Disable");
233 text.psz_string = _("Lowest");
236 text.psz_string = _("Highest");
239 text.psz_string = NULL;
242 var_Change( p_filter, FILTER_PREFIX "q", VLC_VAR_ADDCHOICE,
243 &val, text.psz_string?&text:NULL );
246 vlc_mutex_init( &p_sys->lock );
248 /* Add the callback at the end to prevent crashes */
249 var_AddCallback( p_filter, FILTER_PREFIX "q", PPQCallback, NULL );
250 var_AddCallback( p_filter, FILTER_PREFIX "name", PPNameCallback, NULL );
252 p_filter->pf_video_filter = PostprocPict;
253 p_sys->b_had_matrix = true;
258 /*****************************************************************************
260 *****************************************************************************/
261 static void ClosePostproc( vlc_object_t *p_this )
263 filter_t *p_filter = (filter_t *)p_this;
264 filter_sys_t *p_sys = p_filter->p_sys;
266 /* delete the callback before destroying the mutex */
267 var_DelCallback( p_filter, FILTER_PREFIX "q", PPQCallback, NULL );
268 var_DelCallback( p_filter, FILTER_PREFIX "name", PPNameCallback, NULL );
270 /* Destroy the resources */
271 vlc_mutex_destroy( &p_sys->lock );
272 pp_free_context( p_sys->pp_context );
273 if( p_sys->pp_mode ) pp_free_mode( p_sys->pp_mode );
277 /*****************************************************************************
279 *****************************************************************************/
280 static picture_t *PostprocPict( filter_t *p_filter, picture_t *p_pic )
282 filter_sys_t *p_sys = p_filter->p_sys;
284 const uint8_t *src[3];
287 int i_src_stride[3], i_dst_stride[3];
289 picture_t *p_outpic = filter_NewPicture( p_filter );
292 picture_Release( p_pic );
296 /* Lock to prevent issues if pp_mode is changed */
297 vlc_mutex_lock( &p_sys->lock );
298 if( !p_sys->pp_mode )
300 vlc_mutex_unlock( &p_sys->lock );
301 picture_CopyPixels( p_outpic, p_pic );
302 return CopyInfoAndRelease( p_outpic, p_pic );
306 for( i_plane = 0; i_plane < p_pic->i_planes; i_plane++ )
308 src[i_plane] = p_pic->p[i_plane].p_pixels;
309 dst[i_plane] = p_outpic->p[i_plane].p_pixels;
311 /* I'm not sure what happens if i_pitch != i_visible_pitch ...
312 * at least it shouldn't crash. */
313 i_src_stride[i_plane] = p_pic->p[i_plane].i_pitch;
314 i_dst_stride[i_plane] = p_outpic->p[i_plane].i_pitch;
317 if( !p_pic->p_q && p_sys->b_had_matrix )
319 msg_Warn( p_filter, "Quantification table was not set by video decoder. Postprocessing won't look good." );
320 p_sys->b_had_matrix = false;
322 else if( p_pic->p_q )
324 p_sys->b_had_matrix = true;
327 pp_postprocess( src, i_src_stride, dst, i_dst_stride,
328 p_filter->fmt_in.video.i_width,
329 p_filter->fmt_in.video.i_height,
330 p_pic->p_q, p_pic->i_qstride,
331 p_sys->pp_mode, p_sys->pp_context,
332 p_pic->i_qtype == QTYPE_MPEG2 ? PP_PICT_TYPE_QP2 : 0 );
333 vlc_mutex_unlock( &p_sys->lock );
335 return CopyInfoAndRelease( p_outpic, p_pic );
338 /*****************************************************************************
339 * PPChangeMode: change the current mode and quality
340 *****************************************************************************/
341 static void PPChangeMode( filter_t *p_filter, const char *psz_name,
344 filter_sys_t *p_sys = p_filter->p_sys;
345 vlc_mutex_lock( &p_sys->lock );
348 pp_mode_t *pp_mode = pp_get_mode_by_name_and_quality( psz_name ?
354 pp_free_mode( p_sys->pp_mode );
355 p_sys->pp_mode = pp_mode;
358 msg_Warn( p_filter, "Error while changing post processing mode. "
359 "Keeping previous mode." );
363 pp_free_mode( p_sys->pp_mode );
364 p_sys->pp_mode = NULL;
366 vlc_mutex_unlock( &p_sys->lock );
369 static int PPQCallback( vlc_object_t *p_this, const char *psz_var,
370 vlc_value_t oldval, vlc_value_t newval, void *p_data )
372 VLC_UNUSED(psz_var); VLC_UNUSED(oldval); VLC_UNUSED(p_data);
373 filter_t *p_filter = (filter_t *)p_this;
375 char *psz_name = var_GetNonEmptyString( p_filter, FILTER_PREFIX "name" );
376 PPChangeMode( p_filter, psz_name, newval.i_int );
381 static int PPNameCallback( vlc_object_t *p_this, const char *psz_var,
382 vlc_value_t oldval, vlc_value_t newval, void *p_data )
384 VLC_UNUSED(psz_var); VLC_UNUSED(oldval); VLC_UNUSED(p_data);
385 filter_t *p_filter = (filter_t *)p_this;
387 int i_quality = var_GetInteger( p_filter, FILTER_PREFIX "q" );
388 PPChangeMode( p_filter, *newval.psz_string ? newval.psz_string : NULL,