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 *****************************************************************************/
32 #include <vlc_common.h>
33 #include <vlc_plugin.h>
36 #include "filter_common.h"
37 #include "filter_picture.h"
39 #define TRANSFORM_MODE_HFLIP 1
40 #define TRANSFORM_MODE_VFLIP 2
41 #define TRANSFORM_MODE_90 3
42 #define TRANSFORM_MODE_180 4
43 #define TRANSFORM_MODE_270 5
45 /*****************************************************************************
47 *****************************************************************************/
48 static int Create ( vlc_object_t * );
49 static void Destroy ( vlc_object_t * );
51 static int Init ( vout_thread_t * );
52 static void End ( vout_thread_t * );
53 static void Render ( vout_thread_t *, picture_t * );
55 static void FilterPlanar( vout_thread_t *, const picture_t *, picture_t * );
56 static void FilterI422( vout_thread_t *, const picture_t *, picture_t * );
57 static void FilterYUYV( vout_thread_t *, const picture_t *, picture_t * );
59 static int SendEvents( vlc_object_t *, char const *,
60 vlc_value_t, vlc_value_t, void * );
62 /*****************************************************************************
64 *****************************************************************************/
65 #define TYPE_TEXT N_("Transform type")
66 #define TYPE_LONGTEXT N_("One of '90', '180', '270', 'hflip' and 'vflip'")
68 static const char *const type_list[] = { "90", "180", "270", "hflip", "vflip" };
69 static const char *const type_list_text[] = { N_("Rotate by 90 degrees"),
70 N_("Rotate by 180 degrees"), N_("Rotate by 270 degrees"),
71 N_("Flip horizontally"), N_("Flip vertically") };
73 #define CFG_PREFIX "transform-"
76 set_description( N_("Video transformation filter") )
77 set_shortname( N_("Transformation"))
78 set_capability( "video filter", 0 )
79 set_category( CAT_VIDEO )
80 set_subcategory( SUBCAT_VIDEO_VFILTER )
82 add_string( CFG_PREFIX "type", "90", NULL,
83 TYPE_TEXT, TYPE_LONGTEXT, false);
84 change_string_list( type_list, type_list_text, 0);
86 add_shortcut( "transform" )
87 set_callbacks( Create, Destroy )
90 static const char *const ppsz_filter_options[] = {
94 /*****************************************************************************
95 * vout_sys_t: Transform video output method descriptor
96 *****************************************************************************
97 * This structure is part of the video output thread descriptor.
98 * It describes the Transform specific properties of an output thread.
99 *****************************************************************************/
104 vout_thread_t *p_vout;
106 void (*pf_filter)( vout_thread_t *, const picture_t *, picture_t * );
109 /*****************************************************************************
110 * Control: control facility for the vout (forwards to child vout)
111 *****************************************************************************/
112 static int Control( vout_thread_t *p_vout, int i_query, va_list args )
114 return vout_vaControl( p_vout->p_sys->p_vout, i_query, args );
117 /*****************************************************************************
118 * Create: allocates Transform video thread output method
119 *****************************************************************************
120 * This function allocates and initializes a Transform vout method.
121 *****************************************************************************/
122 static int Create( vlc_object_t *p_this )
124 vout_thread_t *p_vout = (vout_thread_t *)p_this;
127 /* Allocate structure */
128 p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
129 if( p_vout->p_sys == NULL )
132 p_vout->pf_init = Init;
133 p_vout->pf_end = End;
134 p_vout->pf_manage = NULL;
135 p_vout->pf_render = Render;
136 p_vout->pf_display = NULL;
137 p_vout->pf_control = Control;
139 config_ChainParse( p_vout, CFG_PREFIX, ppsz_filter_options,
142 /* Look what method was requested */
143 psz_method = var_CreateGetNonEmptyStringCommand( p_vout, "transform-type" );
145 switch( p_vout->fmt_in.i_chroma )
147 CASE_PLANAR_YUV_SQUARE
148 case VLC_FOURCC('G','R','E','Y'):
149 p_vout->p_sys->pf_filter = FilterPlanar;
152 case VLC_FOURCC('I','4','2','2'):
153 case VLC_FOURCC('J','4','2','2'):
154 p_vout->p_sys->pf_filter = FilterI422;
158 p_vout->p_sys->pf_filter = FilterYUYV;
162 msg_Err( p_vout, "Unsupported chroma" );
163 free( p_vout->p_sys );
167 if( psz_method == NULL )
169 msg_Err( p_vout, "configuration variable %s empty", "transform-type" );
170 msg_Err( p_vout, "no valid transform mode provided, using '90'" );
171 p_vout->p_sys->i_mode = TRANSFORM_MODE_90;
172 p_vout->p_sys->b_rotation = 1;
176 if( !strcmp( psz_method, "hflip" ) )
178 p_vout->p_sys->i_mode = TRANSFORM_MODE_HFLIP;
179 p_vout->p_sys->b_rotation = 0;
181 else if( !strcmp( psz_method, "vflip" ) )
183 p_vout->p_sys->i_mode = TRANSFORM_MODE_VFLIP;
184 p_vout->p_sys->b_rotation = 0;
186 else if( !strcmp( psz_method, "90" ) )
188 p_vout->p_sys->i_mode = TRANSFORM_MODE_90;
189 p_vout->p_sys->b_rotation = 1;
191 else if( !strcmp( psz_method, "180" ) )
193 p_vout->p_sys->i_mode = TRANSFORM_MODE_180;
194 p_vout->p_sys->b_rotation = 0;
196 else if( !strcmp( psz_method, "270" ) )
198 p_vout->p_sys->i_mode = TRANSFORM_MODE_270;
199 p_vout->p_sys->b_rotation = 1;
203 msg_Err( p_vout, "no valid transform mode provided, using '90'" );
204 p_vout->p_sys->i_mode = TRANSFORM_MODE_90;
205 p_vout->p_sys->b_rotation = 1;
214 /*****************************************************************************
215 * Init: initialize Transform video thread output method
216 *****************************************************************************/
217 static int Init( vout_thread_t *p_vout )
223 I_OUTPUTPICTURES = 0;
224 memset( &fmt, 0, sizeof(video_format_t) );
226 /* Initialize the output structure */
227 p_vout->output.i_chroma = p_vout->render.i_chroma;
228 p_vout->output.i_width = p_vout->render.i_width;
229 p_vout->output.i_height = p_vout->render.i_height;
230 p_vout->output.i_aspect = p_vout->render.i_aspect;
231 p_vout->fmt_out = p_vout->fmt_in;
232 fmt = p_vout->fmt_out;
234 /* Try to open the real video output */
235 msg_Dbg( p_vout, "spawning the real video output" );
237 if( p_vout->p_sys->b_rotation )
239 fmt.i_width = p_vout->fmt_out.i_height;
240 fmt.i_visible_width = p_vout->fmt_out.i_visible_height;
241 fmt.i_x_offset = p_vout->fmt_out.i_y_offset;
243 fmt.i_height = p_vout->fmt_out.i_width;
244 fmt.i_visible_height = p_vout->fmt_out.i_visible_width;
245 fmt.i_y_offset = p_vout->fmt_out.i_x_offset;
247 fmt.i_aspect = VOUT_ASPECT_FACTOR *
248 (uint64_t)VOUT_ASPECT_FACTOR / fmt.i_aspect;
250 fmt.i_sar_num = p_vout->fmt_out.i_sar_den;
251 fmt.i_sar_den = p_vout->fmt_out.i_sar_num;
254 p_vout->p_sys->p_vout = vout_Create( p_vout, &fmt );
256 /* Everything failed */
257 if( p_vout->p_sys->p_vout == NULL )
259 msg_Err( p_vout, "cannot open vout, aborting" );
263 ALLOCATE_DIRECTBUFFERS( VOUT_MAX_PICTURES );
265 ADD_CALLBACKS( p_vout->p_sys->p_vout, SendEvents );
267 ADD_PARENT_CALLBACKS( SendEventsToChild );
272 /*****************************************************************************
273 * End: terminate Transform video thread output method
274 *****************************************************************************/
275 static void End( vout_thread_t *p_vout )
279 DEL_PARENT_CALLBACKS( SendEventsToChild );
281 DEL_CALLBACKS( p_vout->p_sys->p_vout, SendEvents );
283 /* Free the fake output buffers we allocated */
284 for( i_index = I_OUTPUTPICTURES ; i_index ; )
287 free( PP_OUTPUTPICTURE[ i_index ]->p_data_orig );
290 vout_CloseAndRelease( p_vout->p_sys->p_vout );
293 /*****************************************************************************
294 * Destroy: destroy Transform video thread output method
295 *****************************************************************************
296 * Terminate an output method created by TransformCreateOutputMethod
297 *****************************************************************************/
298 static void Destroy( vlc_object_t *p_this )
300 vout_thread_t *p_vout = (vout_thread_t *)p_this;
302 free( p_vout->p_sys );
305 /*****************************************************************************
306 * Render: displays previously rendered output
307 *****************************************************************************
308 * This function send the currently rendered image to Transform image, waits
309 * until it is displayed and switch the two rendering buffers, preparing next
311 *****************************************************************************/
312 static void Render( vout_thread_t *p_vout, picture_t *p_pic )
316 /* This is a new frame. Get a structure from the video_output. */
317 while( ( p_outpic = vout_CreatePicture( p_vout->p_sys->p_vout, 0, 0, 0 ) )
320 if( !vlc_object_alive (p_vout) || p_vout->b_error )
324 msleep( VOUT_OUTMEM_SLEEP );
327 p_outpic->date = p_pic->date;
328 vout_LinkPicture( p_vout->p_sys->p_vout, p_outpic );
330 p_vout->p_sys->pf_filter( p_vout, p_pic, p_outpic );
332 vout_UnlinkPicture( p_vout->p_sys->p_vout, p_outpic );
334 vout_DisplayPicture( p_vout->p_sys->p_vout, p_outpic );
337 /*****************************************************************************
338 * SendEvents: forward mouse and keyboard events to the parent p_vout
339 *****************************************************************************/
340 static int SendEvents( vlc_object_t *p_this, char const *psz_var,
341 vlc_value_t oldval, vlc_value_t newval, void *_p_vout )
343 VLC_UNUSED(p_this); VLC_UNUSED(oldval);
344 vout_thread_t *p_vout = (vout_thread_t *)_p_vout;
345 vlc_value_t sentval = newval;
347 /* Translate the mouse coordinates */
348 if( !strcmp( psz_var, "mouse-x" ) )
350 switch( p_vout->p_sys->i_mode )
352 case TRANSFORM_MODE_270:
353 sentval.i_int = p_vout->p_sys->p_vout->output.i_width
355 case TRANSFORM_MODE_90:
356 var_Set( p_vout, "mouse-y", sentval );
359 case TRANSFORM_MODE_180:
360 case TRANSFORM_MODE_HFLIP:
361 sentval.i_int = p_vout->p_sys->p_vout->output.i_width
365 case TRANSFORM_MODE_VFLIP:
370 else if( !strcmp( psz_var, "mouse-y" ) )
372 switch( p_vout->p_sys->i_mode )
374 case TRANSFORM_MODE_90:
375 sentval.i_int = p_vout->p_sys->p_vout->output.i_height
377 case TRANSFORM_MODE_270:
378 var_Set( p_vout, "mouse-x", sentval );
381 case TRANSFORM_MODE_180:
382 case TRANSFORM_MODE_VFLIP:
383 sentval.i_int = p_vout->p_sys->p_vout->output.i_height
387 case TRANSFORM_MODE_HFLIP:
393 var_Set( p_vout, psz_var, sentval );
398 /*****************************************************************************
399 * SendEventsToChild: forward events to the child/children vout
400 *****************************************************************************/
401 static int SendEventsToChild( vlc_object_t *p_this, char const *psz_var,
402 vlc_value_t oldval, vlc_value_t newval, void *p_data )
404 VLC_UNUSED(p_data); VLC_UNUSED(oldval);
405 vout_thread_t *p_vout = (vout_thread_t *)p_this;
406 var_Set( p_vout->p_sys->p_vout, psz_var, newval );
410 static void FilterPlanar( vout_thread_t *p_vout,
411 const picture_t *p_pic, picture_t *p_outpic )
414 switch( p_vout->p_sys->i_mode )
416 case TRANSFORM_MODE_90:
417 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
419 int i_pitch = p_pic->p[i_index].i_pitch;
421 uint8_t *p_in = p_pic->p[i_index].p_pixels;
423 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
424 uint8_t *p_out_end = p_out +
425 p_outpic->p[i_index].i_visible_lines *
426 p_outpic->p[i_index].i_pitch;
428 for( ; p_out < p_out_end ; )
432 p_out_end -= p_outpic->p[i_index].i_pitch
433 - p_outpic->p[i_index].i_visible_pitch;
434 p_line_end = p_in + p_pic->p[i_index].i_visible_lines *
437 for( ; p_in < p_line_end ; )
439 p_line_end -= i_pitch;
440 *(--p_out_end) = *p_line_end;
448 case TRANSFORM_MODE_180:
449 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
451 uint8_t *p_in = p_pic->p[i_index].p_pixels;
452 uint8_t *p_in_end = p_in + p_pic->p[i_index].i_visible_lines
453 * p_pic->p[i_index].i_pitch;
455 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
457 for( ; p_in < p_in_end ; )
459 uint8_t *p_line_start = p_in_end
460 - p_pic->p[i_index].i_pitch;
461 p_in_end -= p_pic->p[i_index].i_pitch
462 - p_pic->p[i_index].i_visible_pitch;
464 for( ; p_line_start < p_in_end ; )
466 *p_out++ = *(--p_in_end);
469 p_out += p_outpic->p[i_index].i_pitch
470 - p_outpic->p[i_index].i_visible_pitch;
475 case TRANSFORM_MODE_270:
476 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
478 int i_pitch = p_pic->p[i_index].i_pitch;
480 uint8_t *p_in = p_pic->p[i_index].p_pixels;
482 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
483 uint8_t *p_out_end = p_out +
484 p_outpic->p[i_index].i_visible_lines *
485 p_outpic->p[i_index].i_pitch;
487 for( ; p_out < p_out_end ; )
491 p_in_end = p_in + p_pic->p[i_index].i_visible_lines *
494 for( ; p_in < p_in_end ; )
497 *p_out++ = *p_in_end;
500 p_out += p_outpic->p[i_index].i_pitch
501 - p_outpic->p[i_index].i_visible_pitch;
507 case TRANSFORM_MODE_HFLIP:
508 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
510 uint8_t *p_in = p_pic->p[i_index].p_pixels;
511 uint8_t *p_in_end = p_in + p_pic->p[i_index].i_visible_lines
512 * p_pic->p[i_index].i_pitch;
514 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
516 for( ; p_in < p_in_end ; )
518 p_in_end -= p_pic->p[i_index].i_pitch;
519 vlc_memcpy( p_out, p_in_end,
520 p_pic->p[i_index].i_visible_pitch );
521 p_out += p_pic->p[i_index].i_pitch;
526 case TRANSFORM_MODE_VFLIP:
527 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
529 uint8_t *p_in = p_pic->p[i_index].p_pixels;
530 uint8_t *p_in_end = p_in + p_pic->p[i_index].i_visible_lines
531 * p_pic->p[i_index].i_pitch;
533 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
535 for( ; p_in < p_in_end ; )
537 uint8_t *p_line_end = p_in
538 + p_pic->p[i_index].i_visible_pitch;
540 for( ; p_in < p_line_end ; )
542 *p_out++ = *(--p_line_end);
545 p_in += p_pic->p[i_index].i_pitch;
555 static void FilterI422( vout_thread_t *p_vout,
556 const picture_t *p_pic, picture_t *p_outpic )
559 switch( p_vout->p_sys->i_mode )
561 case TRANSFORM_MODE_180:
562 case TRANSFORM_MODE_HFLIP:
563 case TRANSFORM_MODE_VFLIP:
564 /* Fall back on the default implementation */
565 FilterPlanar( p_vout, p_pic, p_outpic );
568 case TRANSFORM_MODE_90:
569 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
571 int i_pitch = p_pic->p[i_index].i_pitch;
573 uint8_t *p_in = p_pic->p[i_index].p_pixels;
575 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
576 uint8_t *p_out_end = p_out +
577 p_outpic->p[i_index].i_visible_lines *
578 p_outpic->p[i_index].i_pitch;
582 for( ; p_out < p_out_end ; )
586 p_out_end -= p_outpic->p[i_index].i_pitch
587 - p_outpic->p[i_index].i_visible_pitch;
588 p_line_end = p_in + p_pic->p[i_index].i_visible_lines *
591 for( ; p_in < p_line_end ; )
593 p_line_end -= i_pitch;
594 *(--p_out_end) = *p_line_end;
600 else /* i_index == 1 or 2 */
602 for( ; p_out < p_out_end ; )
604 uint8_t *p_line_end, *p_out_end2;
606 p_out_end -= p_outpic->p[i_index].i_pitch
607 - p_outpic->p[i_index].i_visible_pitch;
608 p_out_end2 = p_out_end - p_outpic->p[i_index].i_pitch;
609 p_line_end = p_in + p_pic->p[i_index].i_visible_lines *
612 for( ; p_in < p_line_end ; )
616 p_line_end -= i_pitch;
618 p_line_end -= i_pitch;
621 /* Trick for (x+y)/2 without overflow, based on
622 * x + y == (x ^ y) + 2 * (x & y) */
623 *(--p_out_end) = (p1 & p2) + ((p1 ^ p2) / 2);
624 *(--p_out_end2) = (p1 & p2) + ((p1 ^ p2) / 2);
627 p_out_end = p_out_end2;
634 case TRANSFORM_MODE_270:
635 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
637 int i_pitch = p_pic->p[i_index].i_pitch;
639 uint8_t *p_in = p_pic->p[i_index].p_pixels;
641 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
642 uint8_t *p_out_end = p_out +
643 p_outpic->p[i_index].i_visible_lines *
644 p_outpic->p[i_index].i_pitch;
648 for( ; p_out < p_out_end ; )
652 p_in_end = p_in + p_pic->p[i_index].i_visible_lines *
655 for( ; p_in < p_in_end ; )
658 *p_out++ = *p_in_end;
661 p_out += p_outpic->p[i_index].i_pitch
662 - p_outpic->p[i_index].i_visible_pitch;
666 else /* i_index == 1 or 2 */
668 for( ; p_out < p_out_end ; )
670 uint8_t *p_in_end, *p_out2;
672 p_in_end = p_in + p_pic->p[i_index].i_visible_lines *
674 p_out2 = p_out + p_outpic->p[i_index].i_pitch;
676 for( ; p_in < p_in_end ; )
685 /* Trick for (x+y)/2 without overflow, based on
686 * x + y == (x ^ y) + 2 * (x & y) */
687 *p_out++ = (p1 & p2) + ((p1 ^ p2) / 2);
688 *p_out2++ = (p1 & p2) + ((p1 ^ p2) / 2);
691 p_out2 += p_outpic->p[i_index].i_pitch
692 - p_outpic->p[i_index].i_visible_pitch;
705 static void FilterYUYV( vout_thread_t *p_vout,
706 const picture_t *p_pic, picture_t *p_outpic )
709 int i_y_offset, i_u_offset, i_v_offset;
710 if( GetPackedYuvOffsets( p_pic->format.i_chroma, &i_y_offset,
711 &i_u_offset, &i_v_offset ) != VLC_SUCCESS )
714 switch( p_vout->p_sys->i_mode )
716 case TRANSFORM_MODE_HFLIP:
717 /* Fall back on the default implementation */
718 FilterPlanar( p_vout, p_pic, p_outpic );
721 case TRANSFORM_MODE_90:
722 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
724 int i_pitch = p_pic->p[i_index].i_pitch;
726 uint8_t *p_in = p_pic->p[i_index].p_pixels;
728 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
729 uint8_t *p_out_end = p_out +
730 p_outpic->p[i_index].i_visible_lines *
731 p_outpic->p[i_index].i_pitch;
733 int i_offset = i_u_offset;
734 int i_offset2 = i_v_offset;
735 for( ; p_out < p_out_end ; )
739 p_out_end -= p_outpic->p[i_index].i_pitch
740 - p_outpic->p[i_index].i_visible_pitch;
741 p_line_end = p_in + p_pic->p[i_index].i_visible_lines *
744 for( ; p_in < p_line_end ; )
746 p_line_end -= i_pitch;
748 p_out_end[i_y_offset+2] = p_line_end[i_y_offset];
749 p_out_end[i_u_offset] = p_line_end[i_offset];
750 p_line_end -= i_pitch;
751 p_out_end[i_y_offset] = p_line_end[i_y_offset];
752 p_out_end[i_v_offset] = p_line_end[i_offset2];
759 i_offset = i_offset2;
766 case TRANSFORM_MODE_180:
767 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
769 uint8_t *p_in = p_pic->p[i_index].p_pixels;
770 uint8_t *p_in_end = p_in + p_pic->p[i_index].i_visible_lines
771 * p_pic->p[i_index].i_pitch;
773 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
775 for( ; p_in < p_in_end ; )
777 uint8_t *p_line_start = p_in_end
778 - p_pic->p[i_index].i_pitch;
779 p_in_end -= p_pic->p[i_index].i_pitch
780 - p_pic->p[i_index].i_visible_pitch;
782 for( ; p_line_start < p_in_end ; )
785 p_out[i_y_offset] = p_in_end[i_y_offset+2];
786 p_out[i_u_offset] = p_in_end[i_u_offset];
787 p_out[i_y_offset+2] = p_in_end[i_y_offset];
788 p_out[i_v_offset] = p_in_end[i_v_offset];
792 p_out += p_outpic->p[i_index].i_pitch
793 - p_outpic->p[i_index].i_visible_pitch;
798 case TRANSFORM_MODE_270:
799 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
801 int i_pitch = p_pic->p[i_index].i_pitch;
803 uint8_t *p_in = p_pic->p[i_index].p_pixels;
805 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
806 uint8_t *p_out_end = p_out +
807 p_outpic->p[i_index].i_visible_lines *
808 p_outpic->p[i_index].i_pitch;
810 int i_offset = i_u_offset;
811 int i_offset2 = i_v_offset;
812 for( ; p_out < p_out_end ; )
817 + p_pic->p[i_index].i_visible_lines * i_pitch;
819 for( ; p_in < p_in_end ; )
822 p_out[i_y_offset] = p_in_end[i_y_offset];
823 p_out[i_u_offset] = p_in_end[i_offset];
825 p_out[i_y_offset+2] = p_in_end[i_y_offset];
826 p_out[i_v_offset] = p_in_end[i_offset2];
830 p_out += p_outpic->p[i_index].i_pitch
831 - p_outpic->p[i_index].i_visible_pitch;
836 i_offset = i_offset2;
843 case TRANSFORM_MODE_VFLIP:
844 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
846 uint8_t *p_in = p_pic->p[i_index].p_pixels;
847 uint8_t *p_in_end = p_in + p_pic->p[i_index].i_visible_lines
848 * p_pic->p[i_index].i_pitch;
850 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
852 for( ; p_in < p_in_end ; )
854 uint8_t *p_line_end = p_in
855 + p_pic->p[i_index].i_visible_pitch;
857 for( ; p_in < p_line_end ; )
860 p_out[i_y_offset] = p_line_end[i_y_offset+2];
861 p_out[i_u_offset] = p_line_end[i_u_offset];
862 p_out[i_y_offset+2] = p_line_end[i_y_offset];
863 p_out[i_v_offset] = p_line_end[i_v_offset];
867 p_in += p_pic->p[i_index].i_pitch;