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 )
131 msg_Err( p_vout, "out of memory" );
135 p_vout->pf_init = Init;
136 p_vout->pf_end = End;
137 p_vout->pf_manage = NULL;
138 p_vout->pf_render = Render;
139 p_vout->pf_display = NULL;
140 p_vout->pf_control = Control;
142 config_ChainParse( p_vout, CFG_PREFIX, ppsz_filter_options,
145 /* Look what method was requested */
146 psz_method = var_CreateGetNonEmptyString( p_vout, "transform-type" );
148 switch( p_vout->fmt_in.i_chroma )
150 CASE_PLANAR_YUV_SQUARE
151 case VLC_FOURCC('G','R','E','Y'):
152 p_vout->p_sys->pf_filter = FilterPlanar;
155 case VLC_FOURCC('I','4','2','2'):
156 case VLC_FOURCC('J','4','2','2'):
157 p_vout->p_sys->pf_filter = FilterI422;
161 p_vout->p_sys->pf_filter = FilterYUYV;
165 msg_Err( p_vout, "Unsupported chroma" );
166 free( p_vout->p_sys );
170 if( psz_method == NULL )
172 msg_Err( p_vout, "configuration variable %s empty", "transform-type" );
173 msg_Err( p_vout, "no valid transform mode provided, using '90'" );
174 p_vout->p_sys->i_mode = TRANSFORM_MODE_90;
175 p_vout->p_sys->b_rotation = 1;
179 if( !strcmp( psz_method, "hflip" ) )
181 p_vout->p_sys->i_mode = TRANSFORM_MODE_HFLIP;
182 p_vout->p_sys->b_rotation = 0;
184 else if( !strcmp( psz_method, "vflip" ) )
186 p_vout->p_sys->i_mode = TRANSFORM_MODE_VFLIP;
187 p_vout->p_sys->b_rotation = 0;
189 else if( !strcmp( psz_method, "90" ) )
191 p_vout->p_sys->i_mode = TRANSFORM_MODE_90;
192 p_vout->p_sys->b_rotation = 1;
194 else if( !strcmp( psz_method, "180" ) )
196 p_vout->p_sys->i_mode = TRANSFORM_MODE_180;
197 p_vout->p_sys->b_rotation = 0;
199 else if( !strcmp( psz_method, "270" ) )
201 p_vout->p_sys->i_mode = TRANSFORM_MODE_270;
202 p_vout->p_sys->b_rotation = 1;
206 msg_Err( p_vout, "no valid transform mode provided, using '90'" );
207 p_vout->p_sys->i_mode = TRANSFORM_MODE_90;
208 p_vout->p_sys->b_rotation = 1;
217 /*****************************************************************************
218 * Init: initialize Transform video thread output method
219 *****************************************************************************/
220 static int Init( vout_thread_t *p_vout )
226 I_OUTPUTPICTURES = 0;
227 memset( &fmt, 0, sizeof(video_format_t) );
229 /* Initialize the output structure */
230 p_vout->output.i_chroma = p_vout->render.i_chroma;
231 p_vout->output.i_width = p_vout->render.i_width;
232 p_vout->output.i_height = p_vout->render.i_height;
233 p_vout->output.i_aspect = p_vout->render.i_aspect;
234 p_vout->fmt_out = p_vout->fmt_in;
235 fmt = p_vout->fmt_out;
237 /* Try to open the real video output */
238 msg_Dbg( p_vout, "spawning the real video output" );
240 if( p_vout->p_sys->b_rotation )
242 fmt.i_width = p_vout->fmt_out.i_height;
243 fmt.i_visible_width = p_vout->fmt_out.i_visible_height;
244 fmt.i_x_offset = p_vout->fmt_out.i_y_offset;
246 fmt.i_height = p_vout->fmt_out.i_width;
247 fmt.i_visible_height = p_vout->fmt_out.i_visible_width;
248 fmt.i_y_offset = p_vout->fmt_out.i_x_offset;
250 fmt.i_aspect = VOUT_ASPECT_FACTOR *
251 (uint64_t)VOUT_ASPECT_FACTOR / fmt.i_aspect;
253 fmt.i_sar_num = p_vout->fmt_out.i_sar_den;
254 fmt.i_sar_den = p_vout->fmt_out.i_sar_num;
257 p_vout->p_sys->p_vout = vout_Create( p_vout, &fmt );
259 /* Everything failed */
260 if( p_vout->p_sys->p_vout == NULL )
262 msg_Err( p_vout, "cannot open vout, aborting" );
266 ALLOCATE_DIRECTBUFFERS( VOUT_MAX_PICTURES );
268 ADD_CALLBACKS( p_vout->p_sys->p_vout, SendEvents );
270 ADD_PARENT_CALLBACKS( SendEventsToChild );
275 /*****************************************************************************
276 * End: terminate Transform video thread output method
277 *****************************************************************************/
278 static void End( vout_thread_t *p_vout )
282 /* Free the fake output buffers we allocated */
283 for( i_index = I_OUTPUTPICTURES ; i_index ; )
286 free( PP_OUTPUTPICTURE[ i_index ]->p_data_orig );
290 /*****************************************************************************
291 * Destroy: destroy Transform video thread output method
292 *****************************************************************************
293 * Terminate an output method created by TransformCreateOutputMethod
294 *****************************************************************************/
295 static void Destroy( vlc_object_t *p_this )
297 vout_thread_t *p_vout = (vout_thread_t *)p_this;
299 if( p_vout->p_sys->p_vout )
301 DEL_CALLBACKS( p_vout->p_sys->p_vout, SendEvents );
302 vlc_object_detach( p_vout->p_sys->p_vout );
303 vout_Destroy( p_vout->p_sys->p_vout );
306 DEL_PARENT_CALLBACKS( SendEventsToChild );
308 free( p_vout->p_sys );
311 /*****************************************************************************
312 * Render: displays previously rendered output
313 *****************************************************************************
314 * This function send the currently rendered image to Transform image, waits
315 * until it is displayed and switch the two rendering buffers, preparing next
317 *****************************************************************************/
318 static void Render( vout_thread_t *p_vout, picture_t *p_pic )
322 /* This is a new frame. Get a structure from the video_output. */
323 while( ( p_outpic = vout_CreatePicture( p_vout->p_sys->p_vout, 0, 0, 0 ) )
326 if( p_vout->b_die || p_vout->b_error )
330 msleep( VOUT_OUTMEM_SLEEP );
333 vout_DatePicture( p_vout->p_sys->p_vout, p_outpic, p_pic->date );
334 vout_LinkPicture( p_vout->p_sys->p_vout, p_outpic );
336 p_vout->p_sys->pf_filter( p_vout, p_pic, p_outpic );
338 vout_UnlinkPicture( p_vout->p_sys->p_vout, p_outpic );
340 vout_DisplayPicture( p_vout->p_sys->p_vout, p_outpic );
343 /*****************************************************************************
344 * SendEvents: forward mouse and keyboard events to the parent p_vout
345 *****************************************************************************/
346 static int SendEvents( vlc_object_t *p_this, char const *psz_var,
347 vlc_value_t oldval, vlc_value_t newval, void *_p_vout )
349 VLC_UNUSED(p_this); VLC_UNUSED(oldval);
350 vout_thread_t *p_vout = (vout_thread_t *)_p_vout;
351 vlc_value_t sentval = newval;
353 /* Translate the mouse coordinates */
354 if( !strcmp( psz_var, "mouse-x" ) )
356 switch( p_vout->p_sys->i_mode )
358 case TRANSFORM_MODE_270:
359 sentval.i_int = p_vout->p_sys->p_vout->output.i_width
361 case TRANSFORM_MODE_90:
362 var_Set( p_vout, "mouse-y", sentval );
365 case TRANSFORM_MODE_180:
366 case TRANSFORM_MODE_HFLIP:
367 sentval.i_int = p_vout->p_sys->p_vout->output.i_width
371 case TRANSFORM_MODE_VFLIP:
376 else if( !strcmp( psz_var, "mouse-y" ) )
378 switch( p_vout->p_sys->i_mode )
380 case TRANSFORM_MODE_90:
381 sentval.i_int = p_vout->p_sys->p_vout->output.i_height
383 case TRANSFORM_MODE_270:
384 var_Set( p_vout, "mouse-x", sentval );
387 case TRANSFORM_MODE_180:
388 case TRANSFORM_MODE_VFLIP:
389 sentval.i_int = p_vout->p_sys->p_vout->output.i_height
393 case TRANSFORM_MODE_HFLIP:
399 var_Set( p_vout, psz_var, sentval );
404 /*****************************************************************************
405 * SendEventsToChild: forward events to the child/children vout
406 *****************************************************************************/
407 static int SendEventsToChild( vlc_object_t *p_this, char const *psz_var,
408 vlc_value_t oldval, vlc_value_t newval, void *p_data )
410 VLC_UNUSED(p_data); VLC_UNUSED(oldval);
411 vout_thread_t *p_vout = (vout_thread_t *)p_this;
412 var_Set( p_vout->p_sys->p_vout, psz_var, newval );
416 static void FilterPlanar( vout_thread_t *p_vout,
417 const picture_t *p_pic, picture_t *p_outpic )
420 switch( p_vout->p_sys->i_mode )
422 case TRANSFORM_MODE_90:
423 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
425 int i_pitch = p_pic->p[i_index].i_pitch;
427 uint8_t *p_in = p_pic->p[i_index].p_pixels;
429 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
430 uint8_t *p_out_end = p_out +
431 p_outpic->p[i_index].i_visible_lines *
432 p_outpic->p[i_index].i_pitch;
434 for( ; p_out < p_out_end ; )
438 p_out_end -= p_outpic->p[i_index].i_pitch
439 - p_outpic->p[i_index].i_visible_pitch;
440 p_line_end = p_in + p_pic->p[i_index].i_visible_lines *
443 for( ; p_in < p_line_end ; )
445 p_line_end -= i_pitch;
446 *(--p_out_end) = *p_line_end;
454 case TRANSFORM_MODE_180:
455 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
457 uint8_t *p_in = p_pic->p[i_index].p_pixels;
458 uint8_t *p_in_end = p_in + p_pic->p[i_index].i_visible_lines
459 * p_pic->p[i_index].i_pitch;
461 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
463 for( ; p_in < p_in_end ; )
465 uint8_t *p_line_start = p_in_end
466 - p_pic->p[i_index].i_pitch;
467 p_in_end -= p_pic->p[i_index].i_pitch
468 - p_pic->p[i_index].i_visible_pitch;
470 for( ; p_line_start < p_in_end ; )
472 *p_out++ = *(--p_in_end);
475 p_out += p_outpic->p[i_index].i_pitch
476 - p_outpic->p[i_index].i_visible_pitch;
481 case TRANSFORM_MODE_270:
482 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
484 int i_pitch = p_pic->p[i_index].i_pitch;
486 uint8_t *p_in = p_pic->p[i_index].p_pixels;
488 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
489 uint8_t *p_out_end = p_out +
490 p_outpic->p[i_index].i_visible_lines *
491 p_outpic->p[i_index].i_pitch;
493 for( ; p_out < p_out_end ; )
497 p_in_end = p_in + p_pic->p[i_index].i_visible_lines *
500 for( ; p_in < p_in_end ; )
503 *p_out++ = *p_in_end;
506 p_out += p_outpic->p[i_index].i_pitch
507 - p_outpic->p[i_index].i_visible_pitch;
513 case TRANSFORM_MODE_HFLIP:
514 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
516 uint8_t *p_in = p_pic->p[i_index].p_pixels;
517 uint8_t *p_in_end = p_in + p_pic->p[i_index].i_visible_lines
518 * p_pic->p[i_index].i_pitch;
520 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
522 for( ; p_in < p_in_end ; )
524 p_in_end -= p_pic->p[i_index].i_pitch;
525 vlc_memcpy( p_out, p_in_end,
526 p_pic->p[i_index].i_visible_pitch );
527 p_out += p_pic->p[i_index].i_pitch;
532 case TRANSFORM_MODE_VFLIP:
533 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
535 uint8_t *p_in = p_pic->p[i_index].p_pixels;
536 uint8_t *p_in_end = p_in + p_pic->p[i_index].i_visible_lines
537 * p_pic->p[i_index].i_pitch;
539 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
541 for( ; p_in < p_in_end ; )
543 uint8_t *p_line_end = p_in
544 + p_pic->p[i_index].i_visible_pitch;
546 for( ; p_in < p_line_end ; )
548 *p_out++ = *(--p_line_end);
551 p_in += p_pic->p[i_index].i_pitch;
561 static void FilterI422( vout_thread_t *p_vout,
562 const picture_t *p_pic, picture_t *p_outpic )
565 switch( p_vout->p_sys->i_mode )
567 case TRANSFORM_MODE_180:
568 case TRANSFORM_MODE_HFLIP:
569 case TRANSFORM_MODE_VFLIP:
570 /* Fall back on the default implementation */
571 FilterPlanar( p_vout, p_pic, p_outpic );
574 case TRANSFORM_MODE_90:
575 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
577 int i_pitch = p_pic->p[i_index].i_pitch;
579 uint8_t *p_in = p_pic->p[i_index].p_pixels;
581 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
582 uint8_t *p_out_end = p_out +
583 p_outpic->p[i_index].i_visible_lines *
584 p_outpic->p[i_index].i_pitch;
588 for( ; p_out < p_out_end ; )
592 p_out_end -= p_outpic->p[i_index].i_pitch
593 - p_outpic->p[i_index].i_visible_pitch;
594 p_line_end = p_in + p_pic->p[i_index].i_visible_lines *
597 for( ; p_in < p_line_end ; )
599 p_line_end -= i_pitch;
600 *(--p_out_end) = *p_line_end;
606 else /* i_index == 1 or 2 */
608 for( ; p_out < p_out_end ; )
610 uint8_t *p_line_end, *p_out_end2;
612 p_out_end -= p_outpic->p[i_index].i_pitch
613 - p_outpic->p[i_index].i_visible_pitch;
614 p_out_end2 = p_out_end - p_outpic->p[i_index].i_pitch;
615 p_line_end = p_in + p_pic->p[i_index].i_visible_lines *
618 for( ; p_in < p_line_end ; )
622 p_line_end -= i_pitch;
624 p_line_end -= i_pitch;
627 /* Trick for (x+y)/2 without overflow, based on
628 * x + y == (x ^ y) + 2 * (x & y) */
629 *(--p_out_end) = (p1 & p2) + ((p1 ^ p2) / 2);
630 *(--p_out_end2) = (p1 & p2) + ((p1 ^ p2) / 2);
633 p_out_end = p_out_end2;
640 case TRANSFORM_MODE_270:
641 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
643 int i_pitch = p_pic->p[i_index].i_pitch;
645 uint8_t *p_in = p_pic->p[i_index].p_pixels;
647 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
648 uint8_t *p_out_end = p_out +
649 p_outpic->p[i_index].i_visible_lines *
650 p_outpic->p[i_index].i_pitch;
654 for( ; p_out < p_out_end ; )
658 p_in_end = p_in + p_pic->p[i_index].i_visible_lines *
661 for( ; p_in < p_in_end ; )
664 *p_out++ = *p_in_end;
667 p_out += p_outpic->p[i_index].i_pitch
668 - p_outpic->p[i_index].i_visible_pitch;
672 else /* i_index == 1 or 2 */
674 for( ; p_out < p_out_end ; )
676 uint8_t *p_in_end, *p_out2;
678 p_in_end = p_in + p_pic->p[i_index].i_visible_lines *
680 p_out2 = p_out + p_outpic->p[i_index].i_pitch;
682 for( ; p_in < p_in_end ; )
691 /* Trick for (x+y)/2 without overflow, based on
692 * x + y == (x ^ y) + 2 * (x & y) */
693 *p_out++ = (p1 & p2) + ((p1 ^ p2) / 2);
694 *p_out2++ = (p1 & p2) + ((p1 ^ p2) / 2);
697 p_out2 += p_outpic->p[i_index].i_pitch
698 - p_outpic->p[i_index].i_visible_pitch;
711 static void FilterYUYV( vout_thread_t *p_vout,
712 const picture_t *p_pic, picture_t *p_outpic )
715 int i_y_offset, i_u_offset, i_v_offset;
716 if( GetPackedYuvOffsets( p_pic->format.i_chroma, &i_y_offset,
717 &i_u_offset, &i_v_offset ) != VLC_SUCCESS )
720 switch( p_vout->p_sys->i_mode )
722 case TRANSFORM_MODE_HFLIP:
723 /* Fall back on the default implementation */
724 FilterPlanar( p_vout, p_pic, p_outpic );
727 case TRANSFORM_MODE_90:
728 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
730 int i_pitch = p_pic->p[i_index].i_pitch;
732 uint8_t *p_in = p_pic->p[i_index].p_pixels;
734 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
735 uint8_t *p_out_end = p_out +
736 p_outpic->p[i_index].i_visible_lines *
737 p_outpic->p[i_index].i_pitch;
739 int i_offset = i_u_offset;
740 int i_offset2 = i_v_offset;
741 for( ; p_out < p_out_end ; )
745 p_out_end -= p_outpic->p[i_index].i_pitch
746 - p_outpic->p[i_index].i_visible_pitch;
747 p_line_end = p_in + p_pic->p[i_index].i_visible_lines *
750 for( ; p_in < p_line_end ; )
752 p_line_end -= i_pitch;
754 p_out_end[i_y_offset+2] = p_line_end[i_y_offset];
755 p_out_end[i_u_offset] = p_line_end[i_offset];
756 p_line_end -= i_pitch;
757 p_out_end[i_y_offset] = p_line_end[i_y_offset];
758 p_out_end[i_v_offset] = p_line_end[i_offset2];
765 i_offset = i_offset2;
772 case TRANSFORM_MODE_180:
773 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
775 uint8_t *p_in = p_pic->p[i_index].p_pixels;
776 uint8_t *p_in_end = p_in + p_pic->p[i_index].i_visible_lines
777 * p_pic->p[i_index].i_pitch;
779 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
781 for( ; p_in < p_in_end ; )
783 uint8_t *p_line_start = p_in_end
784 - p_pic->p[i_index].i_pitch;
785 p_in_end -= p_pic->p[i_index].i_pitch
786 - p_pic->p[i_index].i_visible_pitch;
788 for( ; p_line_start < p_in_end ; )
791 p_out[i_y_offset] = p_in_end[i_y_offset+2];
792 p_out[i_u_offset] = p_in_end[i_u_offset];
793 p_out[i_y_offset+2] = p_in_end[i_y_offset];
794 p_out[i_v_offset] = p_in_end[i_v_offset];
798 p_out += p_outpic->p[i_index].i_pitch
799 - p_outpic->p[i_index].i_visible_pitch;
804 case TRANSFORM_MODE_270:
805 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
807 int i_pitch = p_pic->p[i_index].i_pitch;
809 uint8_t *p_in = p_pic->p[i_index].p_pixels;
811 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
812 uint8_t *p_out_end = p_out +
813 p_outpic->p[i_index].i_visible_lines *
814 p_outpic->p[i_index].i_pitch;
816 int i_offset = i_u_offset;
817 int i_offset2 = i_v_offset;
818 for( ; p_out < p_out_end ; )
823 + p_pic->p[i_index].i_visible_lines * i_pitch;
825 for( ; p_in < p_in_end ; )
828 p_out[i_y_offset] = p_in_end[i_y_offset];
829 p_out[i_u_offset] = p_in_end[i_offset];
831 p_out[i_y_offset+2] = p_in_end[i_y_offset];
832 p_out[i_v_offset] = p_in_end[i_offset2];
836 p_out += p_outpic->p[i_index].i_pitch
837 - p_outpic->p[i_index].i_visible_pitch;
842 i_offset = i_offset2;
849 case TRANSFORM_MODE_VFLIP:
850 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
852 uint8_t *p_in = p_pic->p[i_index].p_pixels;
853 uint8_t *p_in_end = p_in + p_pic->p[i_index].i_visible_lines
854 * p_pic->p[i_index].i_pitch;
856 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
858 for( ; p_in < p_in_end ; )
860 uint8_t *p_line_end = p_in
861 + p_pic->p[i_index].i_visible_pitch;
863 for( ; p_in < p_line_end ; )
866 p_out[i_y_offset] = p_line_end[i_y_offset+2];
867 p_out[i_u_offset] = p_line_end[i_u_offset];
868 p_out[i_y_offset+2] = p_line_end[i_y_offset];
869 p_out[i_v_offset] = p_line_end[i_v_offset];
873 p_in += p_pic->p[i_index].i_pitch;