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_CreateGetNonEmptyString( 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 /* Free the fake output buffers we allocated */
280 for( i_index = I_OUTPUTPICTURES ; i_index ; )
283 free( PP_OUTPUTPICTURE[ i_index ]->p_data_orig );
287 /*****************************************************************************
288 * Destroy: destroy Transform video thread output method
289 *****************************************************************************
290 * Terminate an output method created by TransformCreateOutputMethod
291 *****************************************************************************/
292 static void Destroy( vlc_object_t *p_this )
294 vout_thread_t *p_vout = (vout_thread_t *)p_this;
296 if( p_vout->p_sys->p_vout )
298 DEL_CALLBACKS( p_vout->p_sys->p_vout, SendEvents );
299 vlc_object_detach( p_vout->p_sys->p_vout );
300 vlc_object_release( p_vout->p_sys->p_vout );
303 DEL_PARENT_CALLBACKS( SendEventsToChild );
305 free( p_vout->p_sys );
308 /*****************************************************************************
309 * Render: displays previously rendered output
310 *****************************************************************************
311 * This function send the currently rendered image to Transform image, waits
312 * until it is displayed and switch the two rendering buffers, preparing next
314 *****************************************************************************/
315 static void Render( vout_thread_t *p_vout, picture_t *p_pic )
319 /* This is a new frame. Get a structure from the video_output. */
320 while( ( p_outpic = vout_CreatePicture( p_vout->p_sys->p_vout, 0, 0, 0 ) )
323 if( p_vout->b_die || p_vout->b_error )
327 msleep( VOUT_OUTMEM_SLEEP );
330 vout_DatePicture( p_vout->p_sys->p_vout, p_outpic, p_pic->date );
331 vout_LinkPicture( p_vout->p_sys->p_vout, p_outpic );
333 p_vout->p_sys->pf_filter( p_vout, p_pic, p_outpic );
335 vout_UnlinkPicture( p_vout->p_sys->p_vout, p_outpic );
337 vout_DisplayPicture( p_vout->p_sys->p_vout, p_outpic );
340 /*****************************************************************************
341 * SendEvents: forward mouse and keyboard events to the parent p_vout
342 *****************************************************************************/
343 static int SendEvents( vlc_object_t *p_this, char const *psz_var,
344 vlc_value_t oldval, vlc_value_t newval, void *_p_vout )
346 VLC_UNUSED(p_this); VLC_UNUSED(oldval);
347 vout_thread_t *p_vout = (vout_thread_t *)_p_vout;
348 vlc_value_t sentval = newval;
350 /* Translate the mouse coordinates */
351 if( !strcmp( psz_var, "mouse-x" ) )
353 switch( p_vout->p_sys->i_mode )
355 case TRANSFORM_MODE_270:
356 sentval.i_int = p_vout->p_sys->p_vout->output.i_width
358 case TRANSFORM_MODE_90:
359 var_Set( p_vout, "mouse-y", sentval );
362 case TRANSFORM_MODE_180:
363 case TRANSFORM_MODE_HFLIP:
364 sentval.i_int = p_vout->p_sys->p_vout->output.i_width
368 case TRANSFORM_MODE_VFLIP:
373 else if( !strcmp( psz_var, "mouse-y" ) )
375 switch( p_vout->p_sys->i_mode )
377 case TRANSFORM_MODE_90:
378 sentval.i_int = p_vout->p_sys->p_vout->output.i_height
380 case TRANSFORM_MODE_270:
381 var_Set( p_vout, "mouse-x", sentval );
384 case TRANSFORM_MODE_180:
385 case TRANSFORM_MODE_VFLIP:
386 sentval.i_int = p_vout->p_sys->p_vout->output.i_height
390 case TRANSFORM_MODE_HFLIP:
396 var_Set( p_vout, psz_var, sentval );
401 /*****************************************************************************
402 * SendEventsToChild: forward events to the child/children vout
403 *****************************************************************************/
404 static int SendEventsToChild( vlc_object_t *p_this, char const *psz_var,
405 vlc_value_t oldval, vlc_value_t newval, void *p_data )
407 VLC_UNUSED(p_data); VLC_UNUSED(oldval);
408 vout_thread_t *p_vout = (vout_thread_t *)p_this;
409 var_Set( p_vout->p_sys->p_vout, psz_var, newval );
413 static void FilterPlanar( vout_thread_t *p_vout,
414 const picture_t *p_pic, picture_t *p_outpic )
417 switch( p_vout->p_sys->i_mode )
419 case TRANSFORM_MODE_90:
420 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
422 int i_pitch = p_pic->p[i_index].i_pitch;
424 uint8_t *p_in = p_pic->p[i_index].p_pixels;
426 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
427 uint8_t *p_out_end = p_out +
428 p_outpic->p[i_index].i_visible_lines *
429 p_outpic->p[i_index].i_pitch;
431 for( ; p_out < p_out_end ; )
435 p_out_end -= p_outpic->p[i_index].i_pitch
436 - p_outpic->p[i_index].i_visible_pitch;
437 p_line_end = p_in + p_pic->p[i_index].i_visible_lines *
440 for( ; p_in < p_line_end ; )
442 p_line_end -= i_pitch;
443 *(--p_out_end) = *p_line_end;
451 case TRANSFORM_MODE_180:
452 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
454 uint8_t *p_in = p_pic->p[i_index].p_pixels;
455 uint8_t *p_in_end = p_in + p_pic->p[i_index].i_visible_lines
456 * p_pic->p[i_index].i_pitch;
458 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
460 for( ; p_in < p_in_end ; )
462 uint8_t *p_line_start = p_in_end
463 - p_pic->p[i_index].i_pitch;
464 p_in_end -= p_pic->p[i_index].i_pitch
465 - p_pic->p[i_index].i_visible_pitch;
467 for( ; p_line_start < p_in_end ; )
469 *p_out++ = *(--p_in_end);
472 p_out += p_outpic->p[i_index].i_pitch
473 - p_outpic->p[i_index].i_visible_pitch;
478 case TRANSFORM_MODE_270:
479 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
481 int i_pitch = p_pic->p[i_index].i_pitch;
483 uint8_t *p_in = p_pic->p[i_index].p_pixels;
485 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
486 uint8_t *p_out_end = p_out +
487 p_outpic->p[i_index].i_visible_lines *
488 p_outpic->p[i_index].i_pitch;
490 for( ; p_out < p_out_end ; )
494 p_in_end = p_in + p_pic->p[i_index].i_visible_lines *
497 for( ; p_in < p_in_end ; )
500 *p_out++ = *p_in_end;
503 p_out += p_outpic->p[i_index].i_pitch
504 - p_outpic->p[i_index].i_visible_pitch;
510 case TRANSFORM_MODE_HFLIP:
511 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
513 uint8_t *p_in = p_pic->p[i_index].p_pixels;
514 uint8_t *p_in_end = p_in + p_pic->p[i_index].i_visible_lines
515 * p_pic->p[i_index].i_pitch;
517 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
519 for( ; p_in < p_in_end ; )
521 p_in_end -= p_pic->p[i_index].i_pitch;
522 vlc_memcpy( p_out, p_in_end,
523 p_pic->p[i_index].i_visible_pitch );
524 p_out += p_pic->p[i_index].i_pitch;
529 case TRANSFORM_MODE_VFLIP:
530 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
532 uint8_t *p_in = p_pic->p[i_index].p_pixels;
533 uint8_t *p_in_end = p_in + p_pic->p[i_index].i_visible_lines
534 * p_pic->p[i_index].i_pitch;
536 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
538 for( ; p_in < p_in_end ; )
540 uint8_t *p_line_end = p_in
541 + p_pic->p[i_index].i_visible_pitch;
543 for( ; p_in < p_line_end ; )
545 *p_out++ = *(--p_line_end);
548 p_in += p_pic->p[i_index].i_pitch;
558 static void FilterI422( vout_thread_t *p_vout,
559 const picture_t *p_pic, picture_t *p_outpic )
562 switch( p_vout->p_sys->i_mode )
564 case TRANSFORM_MODE_180:
565 case TRANSFORM_MODE_HFLIP:
566 case TRANSFORM_MODE_VFLIP:
567 /* Fall back on the default implementation */
568 FilterPlanar( p_vout, p_pic, p_outpic );
571 case TRANSFORM_MODE_90:
572 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
574 int i_pitch = p_pic->p[i_index].i_pitch;
576 uint8_t *p_in = p_pic->p[i_index].p_pixels;
578 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
579 uint8_t *p_out_end = p_out +
580 p_outpic->p[i_index].i_visible_lines *
581 p_outpic->p[i_index].i_pitch;
585 for( ; p_out < p_out_end ; )
589 p_out_end -= p_outpic->p[i_index].i_pitch
590 - p_outpic->p[i_index].i_visible_pitch;
591 p_line_end = p_in + p_pic->p[i_index].i_visible_lines *
594 for( ; p_in < p_line_end ; )
596 p_line_end -= i_pitch;
597 *(--p_out_end) = *p_line_end;
603 else /* i_index == 1 or 2 */
605 for( ; p_out < p_out_end ; )
607 uint8_t *p_line_end, *p_out_end2;
609 p_out_end -= p_outpic->p[i_index].i_pitch
610 - p_outpic->p[i_index].i_visible_pitch;
611 p_out_end2 = p_out_end - p_outpic->p[i_index].i_pitch;
612 p_line_end = p_in + p_pic->p[i_index].i_visible_lines *
615 for( ; p_in < p_line_end ; )
619 p_line_end -= i_pitch;
621 p_line_end -= i_pitch;
624 /* Trick for (x+y)/2 without overflow, based on
625 * x + y == (x ^ y) + 2 * (x & y) */
626 *(--p_out_end) = (p1 & p2) + ((p1 ^ p2) / 2);
627 *(--p_out_end2) = (p1 & p2) + ((p1 ^ p2) / 2);
630 p_out_end = p_out_end2;
637 case TRANSFORM_MODE_270:
638 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
640 int i_pitch = p_pic->p[i_index].i_pitch;
642 uint8_t *p_in = p_pic->p[i_index].p_pixels;
644 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
645 uint8_t *p_out_end = p_out +
646 p_outpic->p[i_index].i_visible_lines *
647 p_outpic->p[i_index].i_pitch;
651 for( ; p_out < p_out_end ; )
655 p_in_end = p_in + p_pic->p[i_index].i_visible_lines *
658 for( ; p_in < p_in_end ; )
661 *p_out++ = *p_in_end;
664 p_out += p_outpic->p[i_index].i_pitch
665 - p_outpic->p[i_index].i_visible_pitch;
669 else /* i_index == 1 or 2 */
671 for( ; p_out < p_out_end ; )
673 uint8_t *p_in_end, *p_out2;
675 p_in_end = p_in + p_pic->p[i_index].i_visible_lines *
677 p_out2 = p_out + p_outpic->p[i_index].i_pitch;
679 for( ; p_in < p_in_end ; )
688 /* Trick for (x+y)/2 without overflow, based on
689 * x + y == (x ^ y) + 2 * (x & y) */
690 *p_out++ = (p1 & p2) + ((p1 ^ p2) / 2);
691 *p_out2++ = (p1 & p2) + ((p1 ^ p2) / 2);
694 p_out2 += p_outpic->p[i_index].i_pitch
695 - p_outpic->p[i_index].i_visible_pitch;
708 static void FilterYUYV( vout_thread_t *p_vout,
709 const picture_t *p_pic, picture_t *p_outpic )
712 int i_y_offset, i_u_offset, i_v_offset;
713 if( GetPackedYuvOffsets( p_pic->format.i_chroma, &i_y_offset,
714 &i_u_offset, &i_v_offset ) != VLC_SUCCESS )
717 switch( p_vout->p_sys->i_mode )
719 case TRANSFORM_MODE_HFLIP:
720 /* Fall back on the default implementation */
721 FilterPlanar( p_vout, p_pic, p_outpic );
724 case TRANSFORM_MODE_90:
725 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
727 int i_pitch = p_pic->p[i_index].i_pitch;
729 uint8_t *p_in = p_pic->p[i_index].p_pixels;
731 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
732 uint8_t *p_out_end = p_out +
733 p_outpic->p[i_index].i_visible_lines *
734 p_outpic->p[i_index].i_pitch;
736 int i_offset = i_u_offset;
737 int i_offset2 = i_v_offset;
738 for( ; p_out < p_out_end ; )
742 p_out_end -= p_outpic->p[i_index].i_pitch
743 - p_outpic->p[i_index].i_visible_pitch;
744 p_line_end = p_in + p_pic->p[i_index].i_visible_lines *
747 for( ; p_in < p_line_end ; )
749 p_line_end -= i_pitch;
751 p_out_end[i_y_offset+2] = p_line_end[i_y_offset];
752 p_out_end[i_u_offset] = p_line_end[i_offset];
753 p_line_end -= i_pitch;
754 p_out_end[i_y_offset] = p_line_end[i_y_offset];
755 p_out_end[i_v_offset] = p_line_end[i_offset2];
762 i_offset = i_offset2;
769 case TRANSFORM_MODE_180:
770 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
772 uint8_t *p_in = p_pic->p[i_index].p_pixels;
773 uint8_t *p_in_end = p_in + p_pic->p[i_index].i_visible_lines
774 * p_pic->p[i_index].i_pitch;
776 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
778 for( ; p_in < p_in_end ; )
780 uint8_t *p_line_start = p_in_end
781 - p_pic->p[i_index].i_pitch;
782 p_in_end -= p_pic->p[i_index].i_pitch
783 - p_pic->p[i_index].i_visible_pitch;
785 for( ; p_line_start < p_in_end ; )
788 p_out[i_y_offset] = p_in_end[i_y_offset+2];
789 p_out[i_u_offset] = p_in_end[i_u_offset];
790 p_out[i_y_offset+2] = p_in_end[i_y_offset];
791 p_out[i_v_offset] = p_in_end[i_v_offset];
795 p_out += p_outpic->p[i_index].i_pitch
796 - p_outpic->p[i_index].i_visible_pitch;
801 case TRANSFORM_MODE_270:
802 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
804 int i_pitch = p_pic->p[i_index].i_pitch;
806 uint8_t *p_in = p_pic->p[i_index].p_pixels;
808 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
809 uint8_t *p_out_end = p_out +
810 p_outpic->p[i_index].i_visible_lines *
811 p_outpic->p[i_index].i_pitch;
813 int i_offset = i_u_offset;
814 int i_offset2 = i_v_offset;
815 for( ; p_out < p_out_end ; )
820 + p_pic->p[i_index].i_visible_lines * i_pitch;
822 for( ; p_in < p_in_end ; )
825 p_out[i_y_offset] = p_in_end[i_y_offset];
826 p_out[i_u_offset] = p_in_end[i_offset];
828 p_out[i_y_offset+2] = p_in_end[i_y_offset];
829 p_out[i_v_offset] = p_in_end[i_offset2];
833 p_out += p_outpic->p[i_index].i_pitch
834 - p_outpic->p[i_index].i_visible_pitch;
839 i_offset = i_offset2;
846 case TRANSFORM_MODE_VFLIP:
847 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
849 uint8_t *p_in = p_pic->p[i_index].p_pixels;
850 uint8_t *p_in_end = p_in + p_pic->p[i_index].i_visible_lines
851 * p_pic->p[i_index].i_pitch;
853 uint8_t *p_out = p_outpic->p[i_index].p_pixels;
855 for( ; p_in < p_in_end ; )
857 uint8_t *p_line_end = p_in
858 + p_pic->p[i_index].i_visible_pitch;
860 for( ; p_in < p_line_end ; )
863 p_out[i_y_offset] = p_line_end[i_y_offset+2];
864 p_out[i_u_offset] = p_line_end[i_u_offset];
865 p_out[i_y_offset+2] = p_line_end[i_y_offset];
866 p_out[i_v_offset] = p_line_end[i_v_offset];
870 p_in += p_pic->p[i_index].i_pitch;