1 /*****************************************************************************
2 * transform.c : transform image module for vlc
3 *****************************************************************************
4 * Copyright (C) 2000-2006 the VideoLAN team
7 * Authors: Samuel Hocevar <sam@zoy.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 *****************************************************************************/
35 #include "filter_common.h"
36 #include "filter_picture.h"
38 #define TRANSFORM_MODE_HFLIP 1
39 #define TRANSFORM_MODE_VFLIP 2
40 #define TRANSFORM_MODE_90 3
41 #define TRANSFORM_MODE_180 4
42 #define TRANSFORM_MODE_270 5
44 /*****************************************************************************
46 *****************************************************************************/
47 static int Create ( vlc_object_t * );
48 static void Destroy ( vlc_object_t * );
50 static int Init ( vout_thread_t * );
51 static void End ( vout_thread_t * );
52 static void Render ( vout_thread_t *, picture_t * );
54 static void FilterPlanar( vout_thread_t *, const picture_t *, picture_t * );
55 static void FilterI422( vout_thread_t *, const picture_t *, picture_t * );
56 static void FilterYUYV( vout_thread_t *, const picture_t *, picture_t * );
58 static int SendEvents( vlc_object_t *, char const *,
59 vlc_value_t, vlc_value_t, void * );
61 /*****************************************************************************
63 *****************************************************************************/
64 #define TYPE_TEXT N_("Transform type")
65 #define TYPE_LONGTEXT N_("One of '90', '180', '270', 'hflip' and 'vflip'")
67 static const char *type_list[] = { "90", "180", "270", "hflip", "vflip" };
68 static const char *type_list_text[] = { N_("Rotate by 90 degrees"),
69 N_("Rotate by 180 degrees"), N_("Rotate by 270 degrees"),
70 N_("Flip horizontally"), N_("Flip vertically") };
72 #define CFG_PREFIX "transform-"
75 set_description( _("Video transformation filter") );
76 set_shortname( _("Transformation"));
77 set_capability( "video filter", 0 );
78 set_category( CAT_VIDEO );
79 set_subcategory( SUBCAT_VIDEO_VFILTER );
81 add_string( CFG_PREFIX "type", "90", NULL,
82 TYPE_TEXT, TYPE_LONGTEXT, VLC_FALSE);
83 change_string_list( type_list, type_list_text, 0);
85 add_shortcut( "transform" );
86 set_callbacks( Create, Destroy );
89 static const char *ppsz_filter_options[] = {
93 /*****************************************************************************
94 * vout_sys_t: Transform video output method descriptor
95 *****************************************************************************
96 * This structure is part of the video output thread descriptor.
97 * It describes the Transform specific properties of an output thread.
98 *****************************************************************************/
102 vlc_bool_t b_rotation;
103 vout_thread_t *p_vout;
105 void (*pf_filter)( vout_thread_t *, const picture_t *, picture_t * );
108 /*****************************************************************************
109 * Control: control facility for the vout (forwards to child vout)
110 *****************************************************************************/
111 static int Control( vout_thread_t *p_vout, int i_query, va_list args )
113 return vout_vaControl( p_vout->p_sys->p_vout, i_query, args );
116 /*****************************************************************************
117 * Create: allocates Transform video thread output method
118 *****************************************************************************
119 * This function allocates and initializes a Transform vout method.
120 *****************************************************************************/
121 static int Create( vlc_object_t *p_this )
123 vout_thread_t *p_vout = (vout_thread_t *)p_this;
126 /* Allocate structure */
127 p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
128 if( p_vout->p_sys == NULL )
130 msg_Err( p_vout, "out of memory" );
134 p_vout->pf_init = Init;
135 p_vout->pf_end = End;
136 p_vout->pf_manage = NULL;
137 p_vout->pf_render = Render;
138 p_vout->pf_display = NULL;
139 p_vout->pf_control = Control;
141 config_ChainParse( p_vout, CFG_PREFIX, ppsz_filter_options,
144 /* Look what method was requested */
145 psz_method = var_CreateGetNonEmptyString( p_vout, "transform-type" );
147 switch( p_vout->fmt_in.i_chroma )
149 CASE_PLANAR_YUV_SQUARE
150 case VLC_FOURCC('G','R','E','Y'):
151 p_vout->p_sys->pf_filter = FilterPlanar;
154 case VLC_FOURCC('I','4','2','2'):
155 case VLC_FOURCC('J','4','2','2'):
156 p_vout->p_sys->pf_filter = FilterI422;
160 p_vout->p_sys->pf_filter = FilterYUYV;
164 msg_Err( p_vout, "Unsupported chroma" );
165 free( p_vout->p_sys );
169 if( psz_method == NULL )
171 msg_Err( p_vout, "configuration variable %s empty", "transform-type" );
172 msg_Err( p_vout, "no valid transform mode provided, using '90'" );
173 p_vout->p_sys->i_mode = TRANSFORM_MODE_90;
174 p_vout->p_sys->b_rotation = 1;
178 if( !strcmp( psz_method, "hflip" ) )
180 p_vout->p_sys->i_mode = TRANSFORM_MODE_HFLIP;
181 p_vout->p_sys->b_rotation = 0;
183 else if( !strcmp( psz_method, "vflip" ) )
185 p_vout->p_sys->i_mode = TRANSFORM_MODE_VFLIP;
186 p_vout->p_sys->b_rotation = 0;
188 else if( !strcmp( psz_method, "90" ) )
190 p_vout->p_sys->i_mode = TRANSFORM_MODE_90;
191 p_vout->p_sys->b_rotation = 1;
193 else if( !strcmp( psz_method, "180" ) )
195 p_vout->p_sys->i_mode = TRANSFORM_MODE_180;
196 p_vout->p_sys->b_rotation = 0;
198 else if( !strcmp( psz_method, "270" ) )
200 p_vout->p_sys->i_mode = TRANSFORM_MODE_270;
201 p_vout->p_sys->b_rotation = 1;
205 msg_Err( p_vout, "no valid transform mode provided, using '90'" );
206 p_vout->p_sys->i_mode = TRANSFORM_MODE_90;
207 p_vout->p_sys->b_rotation = 1;
216 /*****************************************************************************
217 * Init: initialize Transform video thread output method
218 *****************************************************************************/
219 static int Init( vout_thread_t *p_vout )
225 I_OUTPUTPICTURES = 0;
226 memset( &fmt, 0, sizeof(video_format_t) );
228 /* Initialize the output structure */
229 p_vout->output.i_chroma = p_vout->render.i_chroma;
230 p_vout->output.i_width = p_vout->render.i_width;
231 p_vout->output.i_height = p_vout->render.i_height;
232 p_vout->output.i_aspect = p_vout->render.i_aspect;
233 p_vout->fmt_out = p_vout->fmt_in;
234 fmt = p_vout->fmt_out;
236 /* Try to open the real video output */
237 msg_Dbg( p_vout, "spawning the real video output" );
239 if( p_vout->p_sys->b_rotation )
241 fmt.i_width = p_vout->fmt_out.i_height;
242 fmt.i_visible_width = p_vout->fmt_out.i_visible_height;
243 fmt.i_x_offset = p_vout->fmt_out.i_y_offset;
245 fmt.i_height = p_vout->fmt_out.i_width;
246 fmt.i_visible_height = p_vout->fmt_out.i_visible_width;
247 fmt.i_y_offset = p_vout->fmt_out.i_x_offset;
249 fmt.i_aspect = VOUT_ASPECT_FACTOR *
250 (uint64_t)VOUT_ASPECT_FACTOR / fmt.i_aspect;
252 fmt.i_sar_num = p_vout->fmt_out.i_sar_den;
253 fmt.i_sar_den = p_vout->fmt_out.i_sar_num;
256 p_vout->p_sys->p_vout = vout_Create( p_vout, &fmt );
258 /* Everything failed */
259 if( p_vout->p_sys->p_vout == NULL )
261 msg_Err( p_vout, "cannot open vout, aborting" );
265 ALLOCATE_DIRECTBUFFERS( VOUT_MAX_PICTURES );
267 ADD_CALLBACKS( p_vout->p_sys->p_vout, SendEvents );
269 ADD_PARENT_CALLBACKS( SendEventsToChild );
274 /*****************************************************************************
275 * End: terminate Transform video thread output method
276 *****************************************************************************/
277 static void End( vout_thread_t *p_vout )
281 /* Free the fake output buffers we allocated */
282 for( i_index = I_OUTPUTPICTURES ; i_index ; )
285 free( PP_OUTPUTPICTURE[ i_index ]->p_data_orig );
289 /*****************************************************************************
290 * Destroy: destroy Transform video thread output method
291 *****************************************************************************
292 * Terminate an output method created by TransformCreateOutputMethod
293 *****************************************************************************/
294 static void Destroy( vlc_object_t *p_this )
296 vout_thread_t *p_vout = (vout_thread_t *)p_this;
298 if( p_vout->p_sys->p_vout )
300 DEL_CALLBACKS( p_vout->p_sys->p_vout, SendEvents );
301 vlc_object_detach( p_vout->p_sys->p_vout );
302 vout_Destroy( p_vout->p_sys->p_vout );
305 DEL_PARENT_CALLBACKS( SendEventsToChild );
307 free( p_vout->p_sys );
310 /*****************************************************************************
311 * Render: displays previously rendered output
312 *****************************************************************************
313 * This function send the currently rendered image to Transform image, waits
314 * until it is displayed and switch the two rendering buffers, preparing next
316 *****************************************************************************/
317 static void Render( vout_thread_t *p_vout, picture_t *p_pic )
321 /* This is a new frame. Get a structure from the video_output. */
322 while( ( p_outpic = vout_CreatePicture( p_vout->p_sys->p_vout, 0, 0, 0 ) )
325 if( p_vout->b_die || p_vout->b_error )
329 msleep( VOUT_OUTMEM_SLEEP );
332 vout_DatePicture( p_vout->p_sys->p_vout, p_outpic, p_pic->date );
333 vout_LinkPicture( p_vout->p_sys->p_vout, p_outpic );
335 p_vout->p_sys->pf_filter( p_vout, p_pic, p_outpic );
337 vout_UnlinkPicture( p_vout->p_sys->p_vout, p_outpic );
339 vout_DisplayPicture( p_vout->p_sys->p_vout, p_outpic );
342 /*****************************************************************************
343 * SendEvents: forward mouse and keyboard events to the parent p_vout
344 *****************************************************************************/
345 static int SendEvents( vlc_object_t *p_this, char const *psz_var,
346 vlc_value_t oldval, vlc_value_t newval, void *_p_vout )
348 VLC_UNUSED(p_this); VLC_UNUSED(oldval);
349 vout_thread_t *p_vout = (vout_thread_t *)_p_vout;
350 vlc_value_t sentval = newval;
352 /* Translate the mouse coordinates */
353 if( !strcmp( psz_var, "mouse-x" ) )
355 switch( p_vout->p_sys->i_mode )
357 case TRANSFORM_MODE_270:
358 sentval.i_int = p_vout->p_sys->p_vout->output.i_width
360 case TRANSFORM_MODE_90:
361 var_Set( p_vout, "mouse-y", sentval );
364 case TRANSFORM_MODE_180:
365 case TRANSFORM_MODE_HFLIP:
366 sentval.i_int = p_vout->p_sys->p_vout->output.i_width
370 case TRANSFORM_MODE_VFLIP:
375 else if( !strcmp( psz_var, "mouse-y" ) )
377 switch( p_vout->p_sys->i_mode )
379 case TRANSFORM_MODE_90:
380 sentval.i_int = p_vout->p_sys->p_vout->output.i_height
382 case TRANSFORM_MODE_270:
383 var_Set( p_vout, "mouse-x", sentval );
386 case TRANSFORM_MODE_180:
387 case TRANSFORM_MODE_VFLIP:
388 sentval.i_int = p_vout->p_sys->p_vout->output.i_height
392 case TRANSFORM_MODE_HFLIP:
398 var_Set( p_vout, psz_var, sentval );
403 /*****************************************************************************
404 * SendEventsToChild: forward events to the child/children vout
405 *****************************************************************************/
406 static int SendEventsToChild( vlc_object_t *p_this, char const *psz_var,
407 vlc_value_t oldval, vlc_value_t newval, void *p_data )
409 VLC_UNUSED(p_data); VLC_UNUSED(oldval);
410 vout_thread_t *p_vout = (vout_thread_t *)p_this;
411 var_Set( p_vout->p_sys->p_vout, psz_var, newval );
415 static void FilterPlanar( vout_thread_t *p_vout,
416 const picture_t *p_pic, picture_t *p_outpic )
419 switch( p_vout->p_sys->i_mode )
421 case TRANSFORM_MODE_90:
422 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
424 int i_pitch = p_pic->p[i_index].i_pitch;
426 uint8_t *p_in = p_pic->p[i_index].p_pixels;
428 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
429 uint8_t *p_out_end = p_out +
430 p_outpic->p[i_index].i_visible_lines *
431 p_outpic->p[i_index].i_pitch;
433 for( ; p_out < p_out_end ; )
437 p_out_end -= p_outpic->p[i_index].i_pitch
438 - p_outpic->p[i_index].i_visible_pitch;
439 p_line_end = p_in + p_pic->p[i_index].i_visible_lines *
442 for( ; p_in < p_line_end ; )
444 p_line_end -= i_pitch;
445 *(--p_out_end) = *p_line_end;
453 case TRANSFORM_MODE_180:
454 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
456 uint8_t *p_in = p_pic->p[i_index].p_pixels;
457 uint8_t *p_in_end = p_in + p_pic->p[i_index].i_visible_lines
458 * p_pic->p[i_index].i_pitch;
460 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
462 for( ; p_in < p_in_end ; )
464 uint8_t *p_line_start = p_in_end
465 - p_pic->p[i_index].i_pitch;
466 p_in_end -= p_pic->p[i_index].i_pitch
467 - p_pic->p[i_index].i_visible_pitch;
469 for( ; p_line_start < p_in_end ; )
471 *p_out++ = *(--p_in_end);
474 p_out += p_outpic->p[i_index].i_pitch
475 - p_outpic->p[i_index].i_visible_pitch;
480 case TRANSFORM_MODE_270:
481 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
483 int i_pitch = p_pic->p[i_index].i_pitch;
485 uint8_t *p_in = p_pic->p[i_index].p_pixels;
487 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
488 uint8_t *p_out_end = p_out +
489 p_outpic->p[i_index].i_visible_lines *
490 p_outpic->p[i_index].i_pitch;
492 for( ; p_out < p_out_end ; )
496 p_in_end = p_in + p_pic->p[i_index].i_visible_lines *
499 for( ; p_in < p_in_end ; )
502 *p_out++ = *p_in_end;
505 p_out += p_outpic->p[i_index].i_pitch
506 - p_outpic->p[i_index].i_visible_pitch;
512 case TRANSFORM_MODE_HFLIP:
513 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
515 uint8_t *p_in = p_pic->p[i_index].p_pixels;
516 uint8_t *p_in_end = p_in + p_pic->p[i_index].i_visible_lines
517 * p_pic->p[i_index].i_pitch;
519 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
521 for( ; p_in < p_in_end ; )
523 p_in_end -= p_pic->p[i_index].i_pitch;
524 p_vout->p_libvlc->pf_memcpy( p_out, p_in_end,
525 p_pic->p[i_index].i_visible_pitch );
526 p_out += p_pic->p[i_index].i_pitch;
531 case TRANSFORM_MODE_VFLIP:
532 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
534 uint8_t *p_in = p_pic->p[i_index].p_pixels;
535 uint8_t *p_in_end = p_in + p_pic->p[i_index].i_visible_lines
536 * p_pic->p[i_index].i_pitch;
538 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
540 for( ; p_in < p_in_end ; )
542 uint8_t *p_line_end = p_in
543 + p_pic->p[i_index].i_visible_pitch;
545 for( ; p_in < p_line_end ; )
547 *p_out++ = *(--p_line_end);
550 p_in += p_pic->p[i_index].i_pitch;
560 static void FilterI422( vout_thread_t *p_vout,
561 const picture_t *p_pic, picture_t *p_outpic )
564 switch( p_vout->p_sys->i_mode )
566 case TRANSFORM_MODE_180:
567 case TRANSFORM_MODE_HFLIP:
568 case TRANSFORM_MODE_VFLIP:
569 /* Fall back on the default implementation */
570 FilterPlanar( p_vout, p_pic, p_outpic );
573 case TRANSFORM_MODE_90:
574 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
576 int i_pitch = p_pic->p[i_index].i_pitch;
578 uint8_t *p_in = p_pic->p[i_index].p_pixels;
580 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
581 uint8_t *p_out_end = p_out +
582 p_outpic->p[i_index].i_visible_lines *
583 p_outpic->p[i_index].i_pitch;
587 for( ; p_out < p_out_end ; )
591 p_out_end -= p_outpic->p[i_index].i_pitch
592 - p_outpic->p[i_index].i_visible_pitch;
593 p_line_end = p_in + p_pic->p[i_index].i_visible_lines *
596 for( ; p_in < p_line_end ; )
598 p_line_end -= i_pitch;
599 *(--p_out_end) = *p_line_end;
605 else /* i_index == 1 or 2 */
607 for( ; p_out < p_out_end ; )
609 uint8_t *p_line_end, *p_out_end2;
611 p_out_end -= p_outpic->p[i_index].i_pitch
612 - p_outpic->p[i_index].i_visible_pitch;
613 p_out_end2 = p_out_end - p_outpic->p[i_index].i_pitch;
614 p_line_end = p_in + p_pic->p[i_index].i_visible_lines *
617 for( ; p_in < p_line_end ; )
621 p_line_end -= i_pitch;
623 p_line_end -= i_pitch;
626 /* Trick for (x+y)/2 without overflow, based on
627 * x + y == (x ^ y) + 2 * (x & y) */
628 *(--p_out_end) = (p1 & p2) + ((p1 ^ p2) / 2);
629 *(--p_out_end2) = (p1 & p2) + ((p1 ^ p2) / 2);
632 p_out_end = p_out_end2;
639 case TRANSFORM_MODE_270:
640 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
642 int i_pitch = p_pic->p[i_index].i_pitch;
644 uint8_t *p_in = p_pic->p[i_index].p_pixels;
646 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
647 uint8_t *p_out_end = p_out +
648 p_outpic->p[i_index].i_visible_lines *
649 p_outpic->p[i_index].i_pitch;
653 for( ; p_out < p_out_end ; )
657 p_in_end = p_in + p_pic->p[i_index].i_visible_lines *
660 for( ; p_in < p_in_end ; )
663 *p_out++ = *p_in_end;
666 p_out += p_outpic->p[i_index].i_pitch
667 - p_outpic->p[i_index].i_visible_pitch;
671 else /* i_index == 1 or 2 */
673 for( ; p_out < p_out_end ; )
675 uint8_t *p_in_end, *p_out2;
677 p_in_end = p_in + p_pic->p[i_index].i_visible_lines *
679 p_out2 = p_out + p_outpic->p[i_index].i_pitch;
681 for( ; p_in < p_in_end ; )
690 /* Trick for (x+y)/2 without overflow, based on
691 * x + y == (x ^ y) + 2 * (x & y) */
692 *p_out++ = (p1 & p2) + ((p1 ^ p2) / 2);
693 *p_out2++ = (p1 & p2) + ((p1 ^ p2) / 2);
696 p_out2 += p_outpic->p[i_index].i_pitch
697 - p_outpic->p[i_index].i_visible_pitch;
710 static void FilterYUYV( vout_thread_t *p_vout,
711 const picture_t *p_pic, picture_t *p_outpic )
714 int i_y_offset, i_u_offset, i_v_offset;
715 if( GetPackedYuvOffsets( p_pic->format.i_chroma, &i_y_offset,
716 &i_u_offset, &i_v_offset ) != VLC_SUCCESS )
719 switch( p_vout->p_sys->i_mode )
721 case TRANSFORM_MODE_HFLIP:
722 /* Fall back on the default implementation */
723 FilterPlanar( p_vout, p_pic, p_outpic );
726 case TRANSFORM_MODE_90:
727 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
729 int i_pitch = p_pic->p[i_index].i_pitch;
731 uint8_t *p_in = p_pic->p[i_index].p_pixels;
733 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
734 uint8_t *p_out_end = p_out +
735 p_outpic->p[i_index].i_visible_lines *
736 p_outpic->p[i_index].i_pitch;
738 int i_offset = i_u_offset;
739 int i_offset2 = i_v_offset;
740 for( ; p_out < p_out_end ; )
744 p_out_end -= p_outpic->p[i_index].i_pitch
745 - p_outpic->p[i_index].i_visible_pitch;
746 p_line_end = p_in + p_pic->p[i_index].i_visible_lines *
749 for( ; p_in < p_line_end ; )
751 p_line_end -= i_pitch;
753 p_out_end[i_y_offset+2] = p_line_end[i_y_offset];
754 p_out_end[i_u_offset] = p_line_end[i_offset];
755 p_line_end -= i_pitch;
756 p_out_end[i_y_offset] = p_line_end[i_y_offset];
757 p_out_end[i_v_offset] = p_line_end[i_offset2];
764 i_offset = i_offset2;
771 case TRANSFORM_MODE_180:
772 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
774 uint8_t *p_in = p_pic->p[i_index].p_pixels;
775 uint8_t *p_in_end = p_in + p_pic->p[i_index].i_visible_lines
776 * p_pic->p[i_index].i_pitch;
778 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
780 for( ; p_in < p_in_end ; )
782 uint8_t *p_line_start = p_in_end
783 - p_pic->p[i_index].i_pitch;
784 p_in_end -= p_pic->p[i_index].i_pitch
785 - p_pic->p[i_index].i_visible_pitch;
787 for( ; p_line_start < p_in_end ; )
790 p_out[i_y_offset] = p_in_end[i_y_offset+2];
791 p_out[i_u_offset] = p_in_end[i_u_offset];
792 p_out[i_y_offset+2] = p_in_end[i_y_offset];
793 p_out[i_v_offset] = p_in_end[i_v_offset];
797 p_out += p_outpic->p[i_index].i_pitch
798 - p_outpic->p[i_index].i_visible_pitch;
803 case TRANSFORM_MODE_270:
804 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
806 int i_pitch = p_pic->p[i_index].i_pitch;
808 uint8_t *p_in = p_pic->p[i_index].p_pixels;
810 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
811 uint8_t *p_out_end = p_out +
812 p_outpic->p[i_index].i_visible_lines *
813 p_outpic->p[i_index].i_pitch;
815 int i_offset = i_u_offset;
816 int i_offset2 = i_v_offset;
817 for( ; p_out < p_out_end ; )
822 + p_pic->p[i_index].i_visible_lines * i_pitch;
824 for( ; p_in < p_in_end ; )
827 p_out[i_y_offset] = p_in_end[i_y_offset];
828 p_out[i_u_offset] = p_in_end[i_offset];
830 p_out[i_y_offset+2] = p_in_end[i_y_offset];
831 p_out[i_v_offset] = p_in_end[i_offset2];
835 p_out += p_outpic->p[i_index].i_pitch
836 - p_outpic->p[i_index].i_visible_pitch;
841 i_offset = i_offset2;
848 case TRANSFORM_MODE_VFLIP:
849 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
851 uint8_t *p_in = p_pic->p[i_index].p_pixels;
852 uint8_t *p_in_end = p_in + p_pic->p[i_index].i_visible_lines
853 * p_pic->p[i_index].i_pitch;
855 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
857 for( ; p_in < p_in_end ; )
859 uint8_t *p_line_end = p_in
860 + p_pic->p[i_index].i_visible_pitch;
862 for( ; p_in < p_line_end ; )
865 p_out[i_y_offset] = p_line_end[i_y_offset+2];
866 p_out[i_u_offset] = p_line_end[i_u_offset];
867 p_out[i_y_offset+2] = p_line_end[i_y_offset];
868 p_out[i_v_offset] = p_line_end[i_v_offset];
872 p_in += p_pic->p[i_index].i_pitch;