1 /*****************************************************************************
2 * image.c : wrapper for image reading/writing facilities
3 *****************************************************************************
4 * Copyright (C) 2004 the VideoLAN team
7 * Author: Gildas Bazin <gbazin@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 *****************************************************************************/
26 * This file contains the functions to handle the image_handler_t type
29 /*****************************************************************************
31 *****************************************************************************/
34 #include <vlc/decoder.h>
35 #include <vlc_filter.h>
36 #include <vlc_image.h>
37 #include <vlc_stream.h>
40 static picture_t *ImageRead( image_handler_t *, block_t *,
41 video_format_t *, video_format_t * );
42 static picture_t *ImageReadUrl( image_handler_t *, const char *,
43 video_format_t *, video_format_t * );
44 static block_t *ImageWrite( image_handler_t *, picture_t *,
45 video_format_t *, video_format_t * );
46 static int ImageWriteUrl( image_handler_t *, picture_t *,
47 video_format_t *, video_format_t *, const char * );
49 static picture_t *ImageConvert( image_handler_t *, picture_t *,
50 video_format_t *, video_format_t * );
51 static picture_t *ImageFilter( image_handler_t *, picture_t *,
52 video_format_t *, const char *psz_module );
54 static decoder_t *CreateDecoder( vlc_object_t *, video_format_t * );
55 static void DeleteDecoder( decoder_t * );
56 static encoder_t *CreateEncoder( vlc_object_t *, video_format_t *,
58 static void DeleteEncoder( encoder_t * );
59 static filter_t *CreateFilter( vlc_object_t *, es_format_t *,
60 video_format_t *, const char * );
61 static void DeleteFilter( filter_t * );
63 static vlc_fourcc_t Ext2Fourcc( const char * );
64 /*static const char *Fourcc2Ext( vlc_fourcc_t );*/
67 * Create an image_handler_t instance
70 image_handler_t *__image_HandlerCreate( vlc_object_t *p_this )
72 image_handler_t *p_image = malloc( sizeof(image_handler_t) );
74 memset( p_image, 0, sizeof(image_handler_t) );
75 p_image->p_parent = p_this;
77 p_image->pf_read = ImageRead;
78 p_image->pf_read_url = ImageReadUrl;
79 p_image->pf_write = ImageWrite;
80 p_image->pf_write_url = ImageWriteUrl;
81 p_image->pf_convert = ImageConvert;
82 p_image->pf_filter = ImageFilter;
88 * Delete the image_handler_t instance
91 void image_HandlerDelete( image_handler_t *p_image )
93 if( !p_image ) return;
95 if( p_image->p_dec ) DeleteDecoder( p_image->p_dec );
96 if( p_image->p_enc ) DeleteEncoder( p_image->p_enc );
97 if( p_image->p_filter ) DeleteFilter( p_image->p_filter );
107 static picture_t *ImageRead( image_handler_t *p_image, block_t *p_block,
108 video_format_t *p_fmt_in,
109 video_format_t *p_fmt_out )
111 picture_t *p_pic = NULL, *p_tmp;
113 /* Check if we can reuse the current decoder */
114 if( p_image->p_dec &&
115 p_image->p_dec->fmt_in.i_codec != p_fmt_in->i_chroma )
117 DeleteDecoder( p_image->p_dec );
121 /* Start a decoder */
122 if( !p_image->p_dec )
124 p_image->p_dec = CreateDecoder( p_image->p_parent, p_fmt_in );
125 if( !p_image->p_dec ) return NULL;
128 p_block->i_pts = p_block->i_dts = mdate();
129 while( (p_tmp = p_image->p_dec->pf_decode_video( p_image->p_dec, &p_block ))
133 p_pic->pf_release( p_pic );
139 msg_Warn( p_image->p_parent, "no image decoded" );
143 if( !p_fmt_out->i_chroma )
144 p_fmt_out->i_chroma = p_image->p_dec->fmt_out.video.i_chroma;
145 if( !p_fmt_out->i_width && p_fmt_out->i_height )
146 p_fmt_out->i_width = p_fmt_out->i_height
147 * p_image->p_dec->fmt_out.video.i_aspect
148 / VOUT_ASPECT_FACTOR;
149 if( !p_fmt_out->i_height && p_fmt_out->i_width )
150 p_fmt_out->i_height = p_fmt_out->i_width * VOUT_ASPECT_FACTOR
151 / p_image->p_dec->fmt_out.video.i_aspect;
152 if( !p_fmt_out->i_width )
153 p_fmt_out->i_width = p_image->p_dec->fmt_out.video.i_width;
154 if( !p_fmt_out->i_height )
155 p_fmt_out->i_height = p_image->p_dec->fmt_out.video.i_height;
157 /* Check if we need chroma conversion or resizing */
158 if( p_image->p_dec->fmt_out.video.i_chroma != p_fmt_out->i_chroma ||
159 p_image->p_dec->fmt_out.video.i_width != p_fmt_out->i_width ||
160 p_image->p_dec->fmt_out.video.i_height != p_fmt_out->i_height )
162 if( p_image->p_filter )
163 if( p_image->p_filter->fmt_in.video.i_chroma !=
164 p_image->p_dec->fmt_out.video.i_chroma ||
165 p_image->p_filter->fmt_out.video.i_chroma != p_fmt_out->i_chroma )
167 /* We need to restart a new filter */
168 DeleteFilter( p_image->p_filter );
169 p_image->p_filter = 0;
173 if( !p_image->p_filter )
176 CreateFilter( p_image->p_parent, &p_image->p_dec->fmt_out,
179 if( !p_image->p_filter )
181 p_pic->pf_release( p_pic );
187 /* Filters should handle on-the-fly size changes */
188 p_image->p_filter->fmt_in = p_image->p_dec->fmt_out;
189 p_image->p_filter->fmt_out = p_image->p_dec->fmt_out;
190 p_image->p_filter->fmt_out.i_codec = p_fmt_out->i_chroma;
191 p_image->p_filter->fmt_out.video = *p_fmt_out;
194 p_pic = p_image->p_filter->pf_video_filter( p_image->p_filter, p_pic );
195 *p_fmt_out = p_image->p_filter->fmt_out.video;
197 else *p_fmt_out = p_image->p_dec->fmt_out.video;
202 static picture_t *ImageReadUrl( image_handler_t *p_image, const char *psz_url,
203 video_format_t *p_fmt_in,
204 video_format_t *p_fmt_out )
208 stream_t *p_stream = NULL;
211 p_stream = stream_UrlNew( p_image->p_parent, psz_url );
215 msg_Dbg( p_image->p_parent, "could not open %s for reading",
220 i_size = stream_Size( p_stream );
222 p_block = block_New( p_image->p_parent, i_size );
224 stream_Read( p_stream, p_block->p_buffer, i_size );
225 stream_Delete( p_stream );
227 if( !p_fmt_in->i_chroma )
229 /* Try to guess format from file name */
230 p_fmt_in->i_chroma = Ext2Fourcc( psz_url );
233 p_pic = ImageRead( p_image, p_block, p_fmt_in, p_fmt_out );
243 void PicRelease( picture_t *p_pic ){};
245 static block_t *ImageWrite( image_handler_t *p_image, picture_t *p_pic,
246 video_format_t *p_fmt_in,
247 video_format_t *p_fmt_out )
250 void (*pf_release)( picture_t * );
252 /* Check if we can reuse the current encoder */
253 if( p_image->p_enc &&
254 ( p_image->p_enc->fmt_out.i_codec != p_fmt_out->i_chroma ||
255 p_image->p_enc->fmt_out.video.i_width != p_fmt_out->i_width ||
256 p_image->p_enc->fmt_out.video.i_height != p_fmt_out->i_height ) )
258 DeleteEncoder( p_image->p_enc );
262 /* Start an encoder */
263 if( !p_image->p_enc )
265 p_image->p_enc = CreateEncoder( p_image->p_parent,
266 p_fmt_in, p_fmt_out );
267 if( !p_image->p_enc ) return NULL;
270 /* Check if we need chroma conversion or resizing */
271 if( p_image->p_enc->fmt_in.video.i_chroma != p_fmt_in->i_chroma ||
272 p_image->p_enc->fmt_in.video.i_width != p_fmt_in->i_width ||
273 p_image->p_enc->fmt_in.video.i_height != p_fmt_in->i_height )
275 picture_t *p_tmp_pic;
277 if( p_image->p_filter )
278 if( p_image->p_filter->fmt_in.video.i_chroma != p_fmt_in->i_chroma ||
279 p_image->p_filter->fmt_out.video.i_chroma !=
280 p_image->p_enc->fmt_in.video.i_chroma )
282 /* We need to restart a new filter */
283 DeleteFilter( p_image->p_filter );
284 p_image->p_filter = 0;
288 if( !p_image->p_filter )
291 es_format_Init( &fmt_in, VIDEO_ES, p_fmt_in->i_chroma );
292 fmt_in.video = *p_fmt_in;
295 CreateFilter( p_image->p_parent, &fmt_in,
296 &p_image->p_enc->fmt_in.video, NULL );
298 if( !p_image->p_filter )
305 /* Filters should handle on-the-fly size changes */
306 p_image->p_filter->fmt_in.i_codec = p_fmt_in->i_chroma;
307 p_image->p_filter->fmt_out.video = *p_fmt_in;
308 p_image->p_filter->fmt_out.i_codec =p_image->p_enc->fmt_in.i_codec;
309 p_image->p_filter->fmt_out.video = p_image->p_enc->fmt_in.video;
312 pf_release = p_pic->pf_release;
313 p_pic->pf_release = PicRelease; /* Small hack */
315 p_image->p_filter->pf_video_filter( p_image->p_filter, p_pic );
316 p_pic->pf_release = pf_release;
318 p_block = p_image->p_enc->pf_encode_video( p_image->p_enc, p_tmp_pic );
320 p_image->p_filter->pf_vout_buffer_del( p_image->p_filter, p_tmp_pic );
324 p_block = p_image->p_enc->pf_encode_video( p_image->p_enc, p_pic );
329 msg_Dbg( p_image->p_parent, "no image encoded" );
336 static int ImageWriteUrl( image_handler_t *p_image, picture_t *p_pic,
337 video_format_t *p_fmt_in, video_format_t *p_fmt_out,
338 const char *psz_url )
343 if( !p_fmt_out->i_chroma )
345 /* Try to guess format from file name */
346 p_fmt_out->i_chroma = Ext2Fourcc( psz_url );
349 file = utf8_fopen( psz_url, "wb" );
352 msg_Dbg( p_image->p_parent, "could not open file %s for writing",
357 p_block = ImageWrite( p_image, p_pic, p_fmt_in, p_fmt_out );
361 fwrite( p_block->p_buffer, sizeof(char), p_block->i_buffer, file );
362 block_Release( p_block );
367 return p_block ? VLC_SUCCESS : VLC_EGENERIC;
371 * Convert an image to a different format
375 static picture_t *ImageConvert( image_handler_t *p_image, picture_t *p_pic,
376 video_format_t *p_fmt_in,
377 video_format_t *p_fmt_out )
379 void (*pf_release)( picture_t * );
382 if( !p_fmt_out->i_width && !p_fmt_out->i_height &&
383 p_fmt_out->i_sar_num && p_fmt_out->i_sar_den &&
384 p_fmt_out->i_sar_num * p_fmt_in->i_sar_den !=
385 p_fmt_out->i_sar_den * p_fmt_in->i_sar_num )
388 p_fmt_in->i_sar_num * (int64_t)p_fmt_out->i_sar_den *
389 p_fmt_in->i_width / p_fmt_in->i_sar_den / p_fmt_out->i_sar_num;
390 p_fmt_out->i_visible_width =
391 p_fmt_in->i_sar_num * (int64_t)p_fmt_out->i_sar_den *
392 p_fmt_in->i_visible_width / p_fmt_in->i_sar_den /
393 p_fmt_out->i_sar_num;
396 if( !p_fmt_out->i_chroma ) p_fmt_out->i_chroma = p_fmt_in->i_chroma;
397 if( !p_fmt_out->i_width )
398 p_fmt_out->i_width = p_fmt_out->i_visible_width = p_fmt_in->i_width;
399 if( !p_fmt_out->i_height )
400 p_fmt_out->i_height = p_fmt_out->i_visible_height = p_fmt_in->i_height;
401 if( !p_fmt_out->i_sar_num ) p_fmt_out->i_sar_num = p_fmt_in->i_sar_num;
402 if( !p_fmt_out->i_sar_den ) p_fmt_out->i_sar_den = p_fmt_in->i_sar_den;
403 if( !p_fmt_out->i_aspect ) p_fmt_out->i_aspect = p_fmt_in->i_aspect;
405 if( p_image->p_filter )
406 if( p_image->p_filter->fmt_in.video.i_chroma != p_fmt_in->i_chroma ||
407 p_image->p_filter->fmt_out.video.i_chroma != p_fmt_out->i_chroma )
409 /* We need to restart a new filter */
410 DeleteFilter( p_image->p_filter );
411 p_image->p_filter = 0;
415 if( !p_image->p_filter )
418 es_format_Init( &fmt_in, VIDEO_ES, p_fmt_in->i_chroma );
419 fmt_in.video = *p_fmt_in;
422 CreateFilter( p_image->p_parent, &fmt_in, p_fmt_out, NULL );
424 if( !p_image->p_filter )
431 /* Filters should handle on-the-fly size changes */
432 p_image->p_filter->fmt_in.video = *p_fmt_in;
433 p_image->p_filter->fmt_out.video = *p_fmt_out;
436 pf_release = p_pic->pf_release;
437 p_pic->pf_release = PicRelease; /* Small hack */
438 p_pif = p_image->p_filter->pf_video_filter( p_image->p_filter, p_pic );
439 p_pic->pf_release = pf_release;
441 if( p_fmt_in->i_chroma == p_fmt_out->i_chroma &&
442 p_fmt_in->i_width == p_fmt_out->i_width &&
443 p_fmt_in->i_height == p_fmt_out->i_height )
445 /* Duplicate image */
446 p_pif = p_image->p_filter->pf_vout_buffer_new( p_image->p_filter );
447 if( p_pif ) vout_CopyPicture( p_image->p_parent, p_pif, p_pic );
454 * Filter an image with a psz_module filter
458 static picture_t *ImageFilter( image_handler_t *p_image, picture_t *p_pic,
459 video_format_t *p_fmt, const char *psz_module )
461 void (*pf_release)( picture_t * );
465 if( !p_image->p_filter )
468 es_format_Init( &fmt, VIDEO_ES, p_fmt->i_chroma );
472 CreateFilter( p_image->p_parent, &fmt, &fmt.video, psz_module );
474 if( !p_image->p_filter )
481 /* Filters should handle on-the-fly size changes */
482 p_image->p_filter->fmt_in.video = *p_fmt;
483 p_image->p_filter->fmt_out.video = *p_fmt;
486 pf_release = p_pic->pf_release;
487 p_pic->pf_release = PicRelease; /* Small hack */
488 p_pif = p_image->p_filter->pf_video_filter( p_image->p_filter, p_pic );
489 p_pic->pf_release = pf_release;
500 vlc_fourcc_t i_codec;
505 { VLC_FOURCC('j','p','e','g'), "jpeg" },
506 { VLC_FOURCC('j','p','e','g'), "jpg" },
507 { VLC_FOURCC('l','j','p','g'), "ljpg" },
508 { VLC_FOURCC('p','n','g',' '), "png" },
509 { VLC_FOURCC('p','g','m',' '), "pgm" },
510 { VLC_FOURCC('p','g','m','y'), "pgmyuv" },
511 { VLC_FOURCC('p','b','m',' '), "pbm" },
512 { VLC_FOURCC('p','a','m',' '), "pam" },
513 { VLC_FOURCC('t','g','a',' '), "tga" },
514 { VLC_FOURCC('b','m','p',' '), "bmp" },
515 { VLC_FOURCC('p','n','m',' '), "pnm" },
516 { VLC_FOURCC('x','p','m',' '), "xpm" },
517 { VLC_FOURCC('x','c','f',' '), "xcf" },
518 { VLC_FOURCC('p','c','x',' '), "pcx" },
519 { VLC_FOURCC('g','i','f',' '), "gif" },
520 { VLC_FOURCC('t','i','f','f'), "tif" },
521 { VLC_FOURCC('t','i','f','f'), "tiff" },
522 { VLC_FOURCC('l','b','m',' '), "lbm" },
526 static vlc_fourcc_t Ext2Fourcc( const char *psz_name )
530 psz_name = strrchr( psz_name, '.' );
531 if( !psz_name ) return 0;
534 for( i = 0; ext_table[i].i_codec; i++ )
537 for( j = 0; toupper(ext_table[i].psz_ext[j]) == toupper(psz_name[j]);
540 if( !ext_table[i].psz_ext[j] && !psz_name[j] )
541 return ext_table[i].i_codec;
549 static const char *Fourcc2Ext( vlc_fourcc_t i_codec )
553 for( i = 0; ext_table[i].i_codec != 0; i++ )
555 if( ext_table[i].i_codec == i_codec ) return ext_table[i].psz_ext;
562 static void video_release_buffer( picture_t *p_pic )
564 if( p_pic && p_pic->p_data_orig ) free( p_pic->p_data_orig );
565 if( p_pic && p_pic->p_sys ) free( p_pic->p_sys );
566 if( p_pic ) free( p_pic );
569 static picture_t *video_new_buffer( decoder_t *p_dec )
571 picture_t *p_pic = malloc( sizeof(picture_t) );
573 p_dec->fmt_out.video.i_chroma = p_dec->fmt_out.i_codec;
574 vout_AllocatePicture( VLC_OBJECT(p_dec), p_pic,
575 p_dec->fmt_out.video.i_chroma,
576 p_dec->fmt_out.video.i_width,
577 p_dec->fmt_out.video.i_height,
578 p_dec->fmt_out.video.i_aspect );
580 if( !p_pic->i_planes )
586 p_pic->pf_release = video_release_buffer;
587 p_pic->i_status = RESERVED_PICTURE;
593 static void video_del_buffer( decoder_t *p_dec, picture_t *p_pic )
595 if( p_pic && p_pic->p_data_orig ) free( p_pic->p_data_orig );
596 if( p_pic && p_pic->p_sys ) free( p_pic->p_sys );
597 if( p_pic ) free( p_pic );
600 static void video_link_picture( decoder_t *p_dec, picture_t *p_pic )
604 static void video_unlink_picture( decoder_t *p_dec, picture_t *p_pic )
608 static decoder_t *CreateDecoder( vlc_object_t *p_this, video_format_t *fmt )
612 p_dec = vlc_object_create( p_this, VLC_OBJECT_DECODER );
615 msg_Err( p_this, "out of memory" );
619 p_dec->p_module = NULL;
620 es_format_Init( &p_dec->fmt_in, VIDEO_ES, fmt->i_chroma );
621 es_format_Init( &p_dec->fmt_out, VIDEO_ES, 0 );
622 p_dec->fmt_in.video = *fmt;
623 p_dec->b_pace_control = VLC_TRUE;
625 p_dec->pf_vout_buffer_new = video_new_buffer;
626 p_dec->pf_vout_buffer_del = video_del_buffer;
627 p_dec->pf_picture_link = video_link_picture;
628 p_dec->pf_picture_unlink = video_unlink_picture;
630 vlc_object_attach( p_dec, p_this );
632 /* Find a suitable decoder module */
633 p_dec->p_module = module_Need( p_dec, "decoder", "$codec", 0 );
634 if( !p_dec->p_module )
636 msg_Err( p_dec, "no suitable decoder module for fourcc `%4.4s'.\n"
637 "VLC probably does not support this image format.",
638 (char*)&p_dec->fmt_in.i_codec );
640 DeleteDecoder( p_dec );
647 static void DeleteDecoder( decoder_t * p_dec )
649 vlc_object_detach( p_dec );
651 if( p_dec->p_module ) module_Unneed( p_dec, p_dec->p_module );
653 es_format_Clean( &p_dec->fmt_in );
654 es_format_Clean( &p_dec->fmt_out );
656 vlc_object_destroy( p_dec );
659 static encoder_t *CreateEncoder( vlc_object_t *p_this, video_format_t *fmt_in,
660 video_format_t *fmt_out )
664 p_enc = vlc_object_create( p_this, VLC_OBJECT_ENCODER );
667 msg_Err( p_this, "out of memory" );
671 p_enc->p_module = NULL;
672 es_format_Init( &p_enc->fmt_in, VIDEO_ES, fmt_in->i_chroma );
673 p_enc->fmt_in.video = *fmt_in;
674 if( fmt_out->i_width > 0 && fmt_out->i_height > 0 )
676 p_enc->fmt_in.video.i_width = fmt_out->i_width;
677 p_enc->fmt_in.video.i_height = fmt_out->i_height;
679 if( fmt_out->i_visible_width > 0 &&
680 fmt_out->i_visible_height > 0 )
682 p_enc->fmt_in.video.i_visible_width = fmt_out->i_visible_width;
683 p_enc->fmt_in.video.i_visible_height = fmt_out->i_visible_height;
687 p_enc->fmt_in.video.i_visible_width = fmt_out->i_width;
688 p_enc->fmt_in.video.i_visible_height = fmt_out->i_height;
691 else if( fmt_out->i_sar_num && fmt_out->i_sar_den &&
692 fmt_out->i_sar_num * fmt_in->i_sar_den !=
693 fmt_out->i_sar_den * fmt_in->i_sar_num )
695 p_enc->fmt_in.video.i_width =
696 fmt_in->i_sar_num * (int64_t)fmt_out->i_sar_den * fmt_in->i_width /
697 fmt_in->i_sar_den / fmt_out->i_sar_num;
698 p_enc->fmt_in.video.i_visible_width =
699 fmt_in->i_sar_num * (int64_t)fmt_out->i_sar_den *
700 fmt_in->i_visible_width / fmt_in->i_sar_den / fmt_out->i_sar_num;
703 p_enc->fmt_in.video.i_frame_rate = 25;
704 p_enc->fmt_in.video.i_frame_rate_base = 1;
706 es_format_Init( &p_enc->fmt_out, VIDEO_ES, fmt_out->i_chroma );
707 p_enc->fmt_out.video = *fmt_out;
708 p_enc->fmt_out.video.i_width = p_enc->fmt_in.video.i_width;
709 p_enc->fmt_out.video.i_height = p_enc->fmt_in.video.i_height;
711 vlc_object_attach( p_enc, p_this );
713 /* Find a suitable decoder module */
714 p_enc->p_module = module_Need( p_enc, "encoder", 0, 0 );
715 if( !p_enc->p_module )
717 msg_Err( p_enc, "no suitable encoder module for fourcc `%4.4s'.\n"
718 "VLC probably does not support this image format.",
719 (char*)&p_enc->fmt_out.i_codec );
721 DeleteEncoder( p_enc );
724 p_enc->fmt_in.video.i_chroma = p_enc->fmt_in.i_codec;
729 static void DeleteEncoder( encoder_t * p_enc )
731 vlc_object_detach( p_enc );
733 if( p_enc->p_module ) module_Unneed( p_enc, p_enc->p_module );
735 es_format_Clean( &p_enc->fmt_in );
736 es_format_Clean( &p_enc->fmt_out );
738 vlc_object_destroy( p_enc );
741 static filter_t *CreateFilter( vlc_object_t *p_this, es_format_t *p_fmt_in,
742 video_format_t *p_fmt_out,
743 const char *psz_module )
747 p_filter = vlc_object_create( p_this, VLC_OBJECT_FILTER );
748 vlc_object_attach( p_filter, p_this );
750 p_filter->pf_vout_buffer_new =
751 (picture_t *(*)(filter_t *))video_new_buffer;
752 p_filter->pf_vout_buffer_del =
753 (void (*)(filter_t *, picture_t *))video_del_buffer;
755 p_filter->fmt_in = *p_fmt_in;
756 p_filter->fmt_out = *p_fmt_in;
757 p_filter->fmt_out.i_codec = p_fmt_out->i_chroma;
758 p_filter->fmt_out.video = *p_fmt_out;
759 p_filter->p_module = module_Need( p_filter, "video filter2", psz_module,
762 if( !p_filter->p_module )
764 msg_Dbg( p_filter, "no video filter found" );
765 DeleteFilter( p_filter );
772 static void DeleteFilter( filter_t * p_filter )
774 vlc_object_detach( p_filter );
776 if( p_filter->p_module ) module_Unneed( p_filter, p_filter->p_module );
778 es_format_Clean( &p_filter->fmt_in );
779 es_format_Clean( &p_filter->fmt_out );
781 vlc_object_destroy( p_filter );