1 /*****************************************************************************
2 * vout_pictures.c : picture management functions
3 *****************************************************************************
4 * Copyright (C) 2000-2004 the VideoLAN team
7 * Authors: Vincent Seguin <seguin@via.ecp.fr>
8 * Samuel Hocevar <sam@zoy.org>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23 *****************************************************************************/
25 /*****************************************************************************
27 *****************************************************************************/
34 #include <vlc_common.h>
38 #include <vlc_filter.h>
39 #include <vlc_image.h>
40 #include <vlc_block.h>
41 #include <vlc_picture_fifo.h>
42 #include <vlc_picture_pool.h>
44 #include "vout_pictures.h"
45 #include "vout_internal.h"
50 * Remove the reservation flag of a picture, which will cause it to be ready
53 void vout_DisplayPicture( vout_thread_t *p_vout, picture_t *p_pic )
55 vlc_mutex_lock( &p_vout->picture_lock );
57 if( p_pic->i_status == RESERVED_PICTURE )
59 p_pic->i_status = READY_PICTURE;
60 vlc_cond_signal( &p_vout->p->picture_wait );
64 msg_Err( p_vout, "picture to display %p has invalid status %d",
65 p_pic, p_pic->i_status );
67 p_vout->p->i_picture_qtype = p_pic->i_qtype;
68 p_vout->p->b_picture_interlaced = !p_pic->b_progressive;
70 vlc_mutex_unlock( &p_vout->picture_lock );
74 * Allocate a picture in the video output heap.
76 * This function creates a reserved image in the video output heap.
77 * A null pointer is returned if the function fails. This method provides an
78 * already allocated zone of memory in the picture data fields.
79 * It needs locking since several pictures can be created by several producers
82 int vout_CountPictureAvailable( vout_thread_t *p_vout )
87 vlc_mutex_lock( &p_vout->picture_lock );
88 for( i_pic = 0; i_pic < I_RENDERPICTURES; i_pic++ )
90 picture_t *p_pic = PP_RENDERPICTURE[(p_vout->render.i_last_used_pic + i_pic + 1) % I_RENDERPICTURES];
92 switch( p_pic->i_status )
94 case DESTROYED_PICTURE:
106 vlc_mutex_unlock( &p_vout->picture_lock );
111 picture_t *vout_CreatePicture( vout_thread_t *p_vout,
113 bool b_top_field_first,
114 unsigned int i_nb_fields )
116 int i_pic; /* picture index */
118 picture_t * p_freepic = NULL; /* first free picture */
121 vlc_mutex_lock( &p_vout->picture_lock );
124 * Look for an empty place in the picture heap.
126 for( i_pic = 0; i_pic < I_RENDERPICTURES; i_pic++ )
128 p_pic = PP_RENDERPICTURE[(p_vout->render.i_last_used_pic + i_pic + 1)
131 switch( p_pic->i_status )
133 case DESTROYED_PICTURE:
134 /* Memory will not be reallocated, and function can end
135 * immediately - this is the best possible case, since no
136 * memory allocation needs to be done */
137 p_pic->i_status = RESERVED_PICTURE;
138 p_pic->i_refcount = 0;
141 p_pic->b_progressive = b_progressive;
142 p_pic->i_nb_fields = i_nb_fields;
143 p_pic->b_top_field_first = b_top_field_first;
145 p_vout->i_heap_size++;
146 p_vout->render.i_last_used_pic =
147 ( p_vout->render.i_last_used_pic + i_pic + 1 )
149 vlc_mutex_unlock( &p_vout->picture_lock );
153 /* Picture is empty and ready for allocation */
154 p_vout->render.i_last_used_pic =
155 ( p_vout->render.i_last_used_pic + i_pic + 1 )
168 if( p_freepic != NULL )
170 vout_AllocatePicture( VLC_OBJECT(p_vout),
171 p_freepic, p_vout->render.i_chroma,
172 p_vout->render.i_width, p_vout->render.i_height,
173 p_vout->render.i_aspect * p_vout->render.i_height,
174 VOUT_ASPECT_FACTOR * p_vout->render.i_width);
176 if( p_freepic->i_planes )
178 /* Copy picture information, set some default values */
179 p_freepic->i_status = RESERVED_PICTURE;
180 p_freepic->i_type = MEMORY_PICTURE;
181 p_freepic->b_slow = 0;
183 p_freepic->i_refcount = 0;
184 p_freepic->b_force = 0;
186 p_freepic->b_progressive = b_progressive;
187 p_freepic->i_nb_fields = i_nb_fields;
188 p_freepic->b_top_field_first = b_top_field_first;
190 p_vout->i_heap_size++;
194 /* Memory allocation failed : set picture as empty */
195 p_freepic->i_status = FREE_PICTURE;
198 msg_Err( p_vout, "picture allocation failed" );
201 vlc_mutex_unlock( &p_vout->picture_lock );
206 /* No free or destroyed picture could be found, but the decoder
207 * will try again in a while. */
208 vlc_mutex_unlock( &p_vout->picture_lock );
214 static void DestroyPicture( vout_thread_t *p_vout, picture_t *p_picture )
216 vlc_assert_locked( &p_vout->picture_lock );
218 p_picture->i_status = DESTROYED_PICTURE;
219 p_vout->i_heap_size--;
220 picture_CleanupQuant( p_picture );
222 vlc_cond_signal( &p_vout->p->picture_wait );
226 * Remove a permanent or reserved picture from the heap
228 * This function frees a previously reserved picture or a permanent
229 * picture. It is meant to be used when the construction of a picture aborted.
230 * Note that the picture will be destroyed even if it is linked !
232 * TODO remove it, vout_DropPicture should be used instead
234 void vout_DestroyPicture( vout_thread_t *p_vout, picture_t *p_pic )
237 /* Check if picture status is valid */
238 vlc_mutex_lock( &p_vout->picture_lock );
239 if( p_pic->i_status != RESERVED_PICTURE )
241 msg_Err( p_vout, "picture to destroy %p has invalid status %d",
242 p_pic, p_pic->i_status );
244 vlc_mutex_unlock( &p_vout->picture_lock );
247 vout_DropPicture( p_vout, p_pic );
251 void vout_UsePictureLocked( vout_thread_t *p_vout, picture_t *p_picture )
253 vlc_assert_locked( &p_vout->picture_lock );
254 if( p_picture->i_refcount > 0 )
256 /* Pretend we displayed the picture, but don't destroy
257 * it since the decoder might still need it. */
258 p_picture->i_status = DISPLAYED_PICTURE;
262 /* Destroy the picture without displaying it */
263 DestroyPicture( p_vout, p_picture );
268 void vout_DropPicture( vout_thread_t *p_vout, picture_t *p_pic )
270 vlc_mutex_lock( &p_vout->picture_lock );
272 if( p_pic->i_status == READY_PICTURE )
274 /* Grr cannot destroy ready picture by myself so be sure vout won't like it */
276 vlc_cond_signal( &p_vout->p->picture_wait );
280 vout_UsePictureLocked( p_vout, p_pic );
283 vlc_mutex_unlock( &p_vout->picture_lock );
287 * Increment reference counter of a picture
289 * This function increments the reference counter of a picture in the video
290 * heap. It needs a lock since several producer threads can access the picture.
292 void vout_LinkPicture( vout_thread_t *p_vout, picture_t *p_pic )
294 vlc_mutex_lock( &p_vout->picture_lock );
296 vlc_mutex_unlock( &p_vout->picture_lock );
300 * Decrement reference counter of a picture
302 * This function decrement the reference counter of a picture in the video heap
304 void vout_UnlinkPicture( vout_thread_t *p_vout, picture_t *p_pic )
306 vlc_mutex_lock( &p_vout->picture_lock );
308 if( p_pic->i_refcount > 0 )
311 msg_Err( p_vout, "Invalid picture reference count (%p, %d)",
312 p_pic, p_pic->i_refcount );
314 if( p_pic->i_refcount == 0 && p_pic->i_status == DISPLAYED_PICTURE )
315 DestroyPicture( p_vout, p_pic );
317 vlc_mutex_unlock( &p_vout->picture_lock );
320 static int vout_LockPicture( vout_thread_t *p_vout, picture_t *p_picture )
322 if( p_picture->pf_lock )
323 return p_picture->pf_lock( p_vout, p_picture );
326 static void vout_UnlockPicture( vout_thread_t *p_vout, picture_t *p_picture )
328 if( p_picture->pf_unlock )
329 p_picture->pf_unlock( p_vout, p_picture );
335 * This function chooses whether the current picture needs to be copied
336 * before rendering, does the subpicture magic, and tells the video output
337 * thread which direct buffer needs to be displayed.
339 picture_t *vout_RenderPicture( vout_thread_t *p_vout, picture_t *p_pic,
340 subpicture_t *p_subpic, mtime_t render_date )
345 if( p_pic->i_type == DIRECT_PICTURE )
347 /* Picture is in a direct buffer. */
349 if( p_subpic != NULL )
351 /* We have subtitles. First copy the picture to
352 * the spare direct buffer, then render the
354 if( vout_LockPicture( p_vout, PP_OUTPUTPICTURE[0] ) )
357 picture_Copy( PP_OUTPUTPICTURE[0], p_pic );
359 spu_RenderSubpictures( p_vout->p_spu,
360 PP_OUTPUTPICTURE[0], &p_vout->fmt_out,
361 p_subpic, &p_vout->fmt_in, render_date );
363 vout_UnlockPicture( p_vout, PP_OUTPUTPICTURE[0] );
365 return PP_OUTPUTPICTURE[0];
368 /* No subtitles, picture is in a directbuffer so
369 * we can display it directly (even if it is still
374 /* Not a direct buffer. We either need to copy it to a direct buffer,
375 * or render it if the chroma isn't the same. */
376 if( p_vout->p->b_direct )
378 /* Picture is not in a direct buffer, but is exactly the
379 * same size as the direct buffers. A memcpy() is enough,
380 * then render the subtitles. */
382 if( vout_LockPicture( p_vout, PP_OUTPUTPICTURE[0] ) )
385 picture_Copy( PP_OUTPUTPICTURE[0], p_pic );
386 spu_RenderSubpictures( p_vout->p_spu,
387 PP_OUTPUTPICTURE[0], &p_vout->fmt_out,
388 p_subpic, &p_vout->fmt_in, render_date );
390 vout_UnlockPicture( p_vout, PP_OUTPUTPICTURE[0] );
392 return PP_OUTPUTPICTURE[0];
395 /* Picture is not in a direct buffer, and needs to be converted to
396 * another size/chroma. Then the subtitles need to be rendered as
397 * well. This usually means software YUV, or hardware YUV with a
398 * different chroma. */
400 if( p_subpic != NULL && p_vout->p_picture[0].b_slow )
402 /* The picture buffer is in slow memory. We'll use
403 * the "2 * VOUT_MAX_PICTURES + 1" picture as a temporary
404 * one for subpictures rendering. */
405 picture_t *p_tmp_pic = &p_vout->p_picture[2 * VOUT_MAX_PICTURES];
406 if( p_tmp_pic->i_status == FREE_PICTURE )
408 vout_AllocatePicture( VLC_OBJECT(p_vout),
409 p_tmp_pic, p_vout->fmt_out.i_chroma,
410 p_vout->fmt_out.i_width,
411 p_vout->fmt_out.i_height,
412 p_vout->fmt_out.i_sar_num,
413 p_vout->fmt_out.i_sar_den );
414 p_tmp_pic->i_type = MEMORY_PICTURE;
415 p_tmp_pic->i_status = RESERVED_PICTURE;
418 /* Convert image to the first direct buffer */
419 p_vout->p->p_chroma->p_owner = (filter_owner_sys_t *)p_tmp_pic;
420 p_vout->p->p_chroma->pf_video_filter( p_vout->p->p_chroma, p_pic );
422 /* Render subpictures on the first direct buffer */
423 spu_RenderSubpictures( p_vout->p_spu,
424 p_tmp_pic, &p_vout->fmt_out,
425 p_subpic, &p_vout->fmt_in, render_date );
427 if( vout_LockPicture( p_vout, &p_vout->p_picture[0] ) )
430 picture_Copy( &p_vout->p_picture[0], p_tmp_pic );
434 if( vout_LockPicture( p_vout, &p_vout->p_picture[0] ) )
437 /* Convert image to the first direct buffer */
438 p_vout->p->p_chroma->p_owner = (filter_owner_sys_t *)&p_vout->p_picture[0];
439 p_vout->p->p_chroma->pf_video_filter( p_vout->p->p_chroma, p_pic );
441 /* Render subpictures on the first direct buffer */
442 spu_RenderSubpictures( p_vout->p_spu,
443 &p_vout->p_picture[0], &p_vout->fmt_out,
444 p_subpic, &p_vout->fmt_in, render_date );
447 vout_UnlockPicture( p_vout, &p_vout->p_picture[0] );
449 return &p_vout->p_picture[0];
453 * Calculate image window coordinates
455 * This function will be accessed by plugins. It calculates the relative
456 * position of the output window and the image window.
458 void vout_PlacePicture( const vout_thread_t *p_vout,
459 unsigned int i_width, unsigned int i_height,
460 unsigned int *restrict pi_x,
461 unsigned int *restrict pi_y,
462 unsigned int *restrict pi_width,
463 unsigned int *restrict pi_height )
465 if( i_width <= 0 || i_height <= 0 )
467 *pi_width = *pi_height = *pi_x = *pi_y = 0;
471 if( p_vout->b_autoscale )
474 *pi_height = i_height;
478 int i_zoom = p_vout->i_zoom;
479 /* be realistic, scaling factor confined between .2 and 10. */
480 if( i_zoom > 10 * ZOOM_FP_FACTOR ) i_zoom = 10 * ZOOM_FP_FACTOR;
481 else if( i_zoom < ZOOM_FP_FACTOR / 5 ) i_zoom = ZOOM_FP_FACTOR / 5;
483 unsigned int i_original_width, i_original_height;
485 if( p_vout->fmt_in.i_sar_num >= p_vout->fmt_in.i_sar_den )
487 i_original_width = p_vout->fmt_in.i_visible_width *
488 p_vout->fmt_in.i_sar_num / p_vout->fmt_in.i_sar_den;
489 i_original_height = p_vout->fmt_in.i_visible_height;
493 i_original_width = p_vout->fmt_in.i_visible_width;
494 i_original_height = p_vout->fmt_in.i_visible_height *
495 p_vout->fmt_in.i_sar_den / p_vout->fmt_in.i_sar_num;
498 /* On windows, inner video window exceeding container leads to black screen */
499 *pi_width = __MIN( i_width, i_original_width * i_zoom / ZOOM_FP_FACTOR );
500 *pi_height = __MIN( i_height, i_original_height * i_zoom / ZOOM_FP_FACTOR );
502 *pi_width = i_original_width * i_zoom / ZOOM_FP_FACTOR ;
503 *pi_height = i_original_height * i_zoom / ZOOM_FP_FACTOR ;
507 int64_t i_scaled_width = p_vout->fmt_in.i_visible_width * (int64_t)p_vout->fmt_in.i_sar_num *
508 *pi_height / p_vout->fmt_in.i_visible_height / p_vout->fmt_in.i_sar_den;
509 int64_t i_scaled_height = p_vout->fmt_in.i_visible_height * (int64_t)p_vout->fmt_in.i_sar_den *
510 *pi_width / p_vout->fmt_in.i_visible_width / p_vout->fmt_in.i_sar_num;
512 if( i_scaled_width <= 0 || i_scaled_height <= 0 )
514 msg_Warn( p_vout, "ignoring broken aspect ratio" );
515 i_scaled_width = *pi_width;
516 i_scaled_height = *pi_height;
519 if( i_scaled_width > *pi_width )
520 *pi_height = i_scaled_height;
522 *pi_width = i_scaled_width;
524 switch( p_vout->i_alignment & VOUT_ALIGN_HMASK )
526 case VOUT_ALIGN_LEFT:
529 case VOUT_ALIGN_RIGHT:
530 *pi_x = i_width - *pi_width;
533 *pi_x = ( i_width - *pi_width ) / 2;
536 switch( p_vout->i_alignment & VOUT_ALIGN_VMASK )
541 case VOUT_ALIGN_BOTTOM:
542 *pi_y = i_height - *pi_height;
545 *pi_y = ( i_height - *pi_height ) / 2;
549 #undef vout_AllocatePicture
551 * Allocate a new picture in the heap.
553 * This function allocates a fake direct buffer in memory, which can be
554 * used exactly like a video buffer. The video output thread then manages
555 * how it gets displayed.
557 int vout_AllocatePicture( vlc_object_t *p_this, picture_t *p_pic,
558 vlc_fourcc_t i_chroma,
559 int i_width, int i_height,
560 int i_sar_num, int i_sar_den )
563 int i_index, i_width_aligned, i_height_aligned;
565 /* Make sure the real dimensions are a multiple of 16 */
566 i_width_aligned = (i_width + 15) >> 4 << 4;
567 i_height_aligned = (i_height + 15) >> 4 << 4;
569 if( picture_Setup( p_pic, i_chroma, i_width, i_height,
570 i_sar_num, i_sar_den ) != VLC_SUCCESS )
576 /* Calculate how big the new image should be */
579 * bytes = width_aligned * height_aligned * bpp / 8
580 * We need to check for an integer overflow at each multiplication since
581 * height & width (and bpp?) could be arbitrary large
585 /* i_width_aligned is a multiple of 16, so we can divide by 8 now */
586 size_t i_width_aligned_divided = i_width_aligned / 8;
587 if( i_width_aligned_divided <= (SIZE_MAX/i_height_aligned) )
589 size_t i_pixels_divided = i_width_aligned_divided * i_height_aligned;
590 size_t i_bpp = p_pic->format.i_bits_per_pixel;
591 if( i_pixels_divided <= (SIZE_MAX/i_bpp) )
593 i_bytes = i_pixels_divided * i_bpp;
603 p_pic->p_data = vlc_memalign( &p_pic->p_data_orig, 16, i_bytes );
605 if( p_pic->p_data == NULL )
611 /* Fill the p_pixels field for each plane */
612 p_pic->p[ 0 ].p_pixels = p_pic->p_data;
614 for( i_index = 1; i_index < p_pic->i_planes; i_index++ )
616 p_pic->p[i_index].p_pixels = p_pic->p[i_index-1].p_pixels +
617 p_pic->p[i_index-1].i_lines * p_pic->p[i_index-1].i_pitch;
624 * Compare two chroma values
626 * This function returns 1 if the two fourcc values given as argument are
627 * the same format (eg. UYVY/UYNV) or almost the same format (eg. I420/YV12)
629 int vout_ChromaCmp( vlc_fourcc_t i_chroma, vlc_fourcc_t i_amorhc )
631 static const vlc_fourcc_t p_I420[] = {
632 VLC_CODEC_I420, VLC_CODEC_YV12, VLC_CODEC_J420, 0
634 static const vlc_fourcc_t p_I422[] = {
635 VLC_CODEC_I422, VLC_CODEC_J422, 0
637 static const vlc_fourcc_t p_I440[] = {
638 VLC_CODEC_I440, VLC_CODEC_J440, 0
640 static const vlc_fourcc_t p_I444[] = {
641 VLC_CODEC_I444, VLC_CODEC_J444, 0
643 static const vlc_fourcc_t *pp_fcc[] = {
644 p_I420, p_I422, p_I440, p_I444, NULL
648 i_chroma = vlc_fourcc_GetCodec( VIDEO_ES, i_chroma );
649 i_amorhc = vlc_fourcc_GetCodec( VIDEO_ES, i_amorhc );
651 /* If they are the same, they are the same ! */
652 if( i_chroma == i_amorhc )
655 /* Check for equivalence classes */
656 for( int i = 0; pp_fcc[i] != NULL; i++ )
660 for( int j = 0; pp_fcc[i][j] != 0; j++ )
662 if( i_chroma == pp_fcc[i][j] )
664 if( i_amorhc == pp_fcc[i][j] )
667 if( b_fcc1 && b_fcc2 )
673 /*****************************************************************************
675 *****************************************************************************/
676 static void PictureReleaseCallback( picture_t *p_picture )
678 if( --p_picture->i_refcount > 0 )
680 picture_Delete( p_picture );
683 /*****************************************************************************
685 *****************************************************************************/
686 void picture_Reset( picture_t *p_picture )
689 p_picture->date = VLC_TS_INVALID;
690 p_picture->b_force = false;
691 p_picture->b_progressive = false;
692 p_picture->i_nb_fields = 0;
693 p_picture->b_top_field_first = false;
694 picture_CleanupQuant( p_picture );
697 /*****************************************************************************
699 *****************************************************************************/
700 int picture_Setup( picture_t *p_picture, vlc_fourcc_t i_chroma,
701 int i_width, int i_height, int i_sar_num, int i_sar_den )
703 int i_index, i_width_aligned, i_height_aligned;
705 /* Store default values */
706 for( i_index = 0; i_index < VOUT_MAX_PLANES; i_index++ )
708 p_picture->p[i_index].p_pixels = NULL;
709 p_picture->p[i_index].i_pixel_pitch = 1;
712 p_picture->pf_release = NULL;
713 p_picture->p_release_sys = NULL;
714 p_picture->pf_lock = NULL;
715 p_picture->pf_unlock = NULL;
716 p_picture->i_refcount = 0;
718 p_picture->i_qtype = QTYPE_NONE;
719 p_picture->i_qstride = 0;
720 p_picture->p_q = NULL;
722 video_format_Setup( &p_picture->format, i_chroma, i_width, i_height,
723 i_sar_num, i_sar_den );
725 /* Make sure the real dimensions are a multiple of 16 */
726 i_width_aligned = (i_width + 15) >> 4 << 4;
727 i_height_aligned = (i_height + 15) >> 4 << 4;
729 /* Calculate coordinates */
730 switch( vlc_fourcc_GetCodec( VIDEO_ES, i_chroma ) )
733 p_picture->p[ Y_PLANE ].i_lines = i_height_aligned;
734 p_picture->p[ Y_PLANE ].i_visible_lines = i_height;
735 p_picture->p[ Y_PLANE ].i_pitch = i_width_aligned;
736 p_picture->p[ Y_PLANE ].i_visible_pitch = i_width;
737 p_picture->p[ U_PLANE ].i_lines = i_height_aligned;
738 p_picture->p[ U_PLANE ].i_visible_lines = i_height;
739 p_picture->p[ U_PLANE ].i_pitch = i_width_aligned / 4;
740 p_picture->p[ U_PLANE ].i_visible_pitch = i_width / 4;
741 p_picture->p[ V_PLANE ].i_lines = i_height_aligned;
742 p_picture->p[ V_PLANE ].i_visible_lines = i_height;
743 p_picture->p[ V_PLANE ].i_pitch = i_width_aligned / 4;
744 p_picture->p[ V_PLANE ].i_visible_pitch = i_width / 4;
745 p_picture->i_planes = 3;
749 p_picture->p[ Y_PLANE ].i_lines = i_height_aligned;
750 p_picture->p[ Y_PLANE ].i_visible_lines = i_height;
751 p_picture->p[ Y_PLANE ].i_pitch = i_width_aligned;
752 p_picture->p[ Y_PLANE ].i_visible_pitch = i_width;
753 p_picture->p[ U_PLANE ].i_lines = i_height_aligned / 4;
754 p_picture->p[ U_PLANE ].i_visible_lines = i_height / 4;
755 p_picture->p[ U_PLANE ].i_pitch = i_width_aligned / 4;
756 p_picture->p[ U_PLANE ].i_visible_pitch = i_width / 4;
757 p_picture->p[ V_PLANE ].i_lines = i_height_aligned / 4;
758 p_picture->p[ V_PLANE ].i_visible_lines = i_height / 4;
759 p_picture->p[ V_PLANE ].i_pitch = i_width_aligned / 4;
760 p_picture->p[ V_PLANE ].i_visible_pitch = i_width / 4;
761 p_picture->i_planes = 3;
767 p_picture->p[ Y_PLANE ].i_lines = i_height_aligned;
768 p_picture->p[ Y_PLANE ].i_visible_lines = i_height;
769 p_picture->p[ Y_PLANE ].i_pitch = i_width_aligned;
770 p_picture->p[ Y_PLANE ].i_visible_pitch = i_width;
771 p_picture->p[ U_PLANE ].i_lines = i_height_aligned / 2;
772 p_picture->p[ U_PLANE ].i_visible_lines = i_height / 2;
773 p_picture->p[ U_PLANE ].i_pitch = i_width_aligned / 2;
774 p_picture->p[ U_PLANE ].i_visible_pitch = i_width / 2;
775 p_picture->p[ V_PLANE ].i_lines = i_height_aligned / 2;
776 p_picture->p[ V_PLANE ].i_visible_lines = i_height / 2;
777 p_picture->p[ V_PLANE ].i_pitch = i_width_aligned / 2;
778 p_picture->p[ V_PLANE ].i_visible_pitch = i_width / 2;
779 p_picture->i_planes = 3;
784 p_picture->p[ Y_PLANE ].i_lines = i_height_aligned;
785 p_picture->p[ Y_PLANE ].i_visible_lines = i_height;
786 p_picture->p[ Y_PLANE ].i_pitch = i_width_aligned;
787 p_picture->p[ Y_PLANE ].i_visible_pitch = i_width;
788 p_picture->p[ U_PLANE ].i_lines = i_height_aligned;
789 p_picture->p[ U_PLANE ].i_visible_lines = i_height;
790 p_picture->p[ U_PLANE ].i_pitch = i_width_aligned / 2;
791 p_picture->p[ U_PLANE ].i_visible_pitch = i_width / 2;
792 p_picture->p[ V_PLANE ].i_lines = i_height_aligned;
793 p_picture->p[ V_PLANE ].i_visible_lines = i_height;
794 p_picture->p[ V_PLANE ].i_pitch = i_width_aligned / 2;
795 p_picture->p[ V_PLANE ].i_visible_pitch = i_width / 2;
796 p_picture->i_planes = 3;
801 p_picture->p[ Y_PLANE ].i_lines = i_height_aligned;
802 p_picture->p[ Y_PLANE ].i_visible_lines = i_height;
803 p_picture->p[ Y_PLANE ].i_pitch = i_width_aligned;
804 p_picture->p[ Y_PLANE ].i_visible_pitch = i_width;
805 p_picture->p[ U_PLANE ].i_lines = i_height_aligned / 2;
806 p_picture->p[ U_PLANE ].i_visible_lines = i_height / 2;
807 p_picture->p[ U_PLANE ].i_pitch = i_width_aligned;
808 p_picture->p[ U_PLANE ].i_visible_pitch = i_width;
809 p_picture->p[ V_PLANE ].i_lines = i_height_aligned / 2;
810 p_picture->p[ V_PLANE ].i_visible_lines = i_height / 2;
811 p_picture->p[ V_PLANE ].i_pitch = i_width_aligned;
812 p_picture->p[ V_PLANE ].i_visible_pitch = i_width;
813 p_picture->i_planes = 3;
818 p_picture->p[ Y_PLANE ].i_lines = i_height_aligned;
819 p_picture->p[ Y_PLANE ].i_visible_lines = i_height;
820 p_picture->p[ Y_PLANE ].i_pitch = i_width_aligned;
821 p_picture->p[ Y_PLANE ].i_visible_pitch = i_width;
822 p_picture->p[ U_PLANE ].i_lines = i_height_aligned;
823 p_picture->p[ U_PLANE ].i_visible_lines = i_height;
824 p_picture->p[ U_PLANE ].i_pitch = i_width_aligned;
825 p_picture->p[ U_PLANE ].i_visible_pitch = i_width;
826 p_picture->p[ V_PLANE ].i_lines = i_height_aligned;
827 p_picture->p[ V_PLANE ].i_visible_lines = i_height;
828 p_picture->p[ V_PLANE ].i_pitch = i_width_aligned;
829 p_picture->p[ V_PLANE ].i_visible_pitch = i_width;
830 p_picture->i_planes = 3;
834 p_picture->p[ Y_PLANE ].i_lines = i_height_aligned;
835 p_picture->p[ Y_PLANE ].i_visible_lines = i_height;
836 p_picture->p[ Y_PLANE ].i_pitch = i_width_aligned;
837 p_picture->p[ Y_PLANE ].i_visible_pitch = i_width;
838 p_picture->p[ U_PLANE ].i_lines = i_height_aligned;
839 p_picture->p[ U_PLANE ].i_visible_lines = i_height;
840 p_picture->p[ U_PLANE ].i_pitch = i_width_aligned;
841 p_picture->p[ U_PLANE ].i_visible_pitch = i_width;
842 p_picture->p[ V_PLANE ].i_lines = i_height_aligned;
843 p_picture->p[ V_PLANE ].i_visible_lines = i_height;
844 p_picture->p[ V_PLANE ].i_pitch = i_width_aligned;
845 p_picture->p[ V_PLANE ].i_visible_pitch = i_width;
846 p_picture->p[ A_PLANE ].i_lines = i_height_aligned;
847 p_picture->p[ A_PLANE ].i_visible_lines = i_height;
848 p_picture->p[ A_PLANE ].i_pitch = i_width_aligned;
849 p_picture->p[ A_PLANE ].i_visible_pitch = i_width;
850 p_picture->i_planes = 4;
854 p_picture->p->i_lines = i_height_aligned;
855 p_picture->p->i_visible_lines = i_height;
856 p_picture->p->i_pitch = i_width_aligned;
857 p_picture->p->i_visible_pitch = i_width;
858 p_picture->p->i_pixel_pitch = 1;
859 p_picture->i_planes = 1;
863 p_picture->p->i_lines = i_height_aligned;
864 p_picture->p->i_visible_lines = i_height;
865 p_picture->p->i_pitch = i_width_aligned;
866 p_picture->p->i_visible_pitch = i_width;
867 p_picture->p->i_pixel_pitch = 4;
868 p_picture->i_planes = 1;
875 p_picture->p->i_lines = i_height_aligned;
876 p_picture->p->i_visible_lines = i_height;
877 p_picture->p->i_pitch = i_width_aligned * 2;
878 p_picture->p->i_visible_pitch = i_width * 2;
879 p_picture->p->i_pixel_pitch = 2;
880 p_picture->i_planes = 1;
884 p_picture->p->i_lines = i_height_aligned;
885 p_picture->p->i_visible_lines = i_height;
886 p_picture->p->i_pitch = i_width_aligned;
887 p_picture->p->i_visible_pitch = i_width;
888 p_picture->p->i_pixel_pitch = 1;
889 p_picture->i_planes = 1;
892 case VLC_CODEC_RGB15:
893 p_picture->p->i_lines = i_height_aligned;
894 p_picture->p->i_visible_lines = i_height;
895 p_picture->p->i_pitch = i_width_aligned * 2;
896 p_picture->p->i_visible_pitch = i_width * 2;
897 p_picture->p->i_pixel_pitch = 2;
898 p_picture->i_planes = 1;
901 case VLC_CODEC_RGB16:
902 p_picture->p->i_lines = i_height_aligned;
903 p_picture->p->i_visible_lines = i_height;
904 p_picture->p->i_pitch = i_width_aligned * 2;
905 p_picture->p->i_visible_pitch = i_width * 2;
906 p_picture->p->i_pixel_pitch = 2;
907 p_picture->i_planes = 1;
910 case VLC_CODEC_RGB24:
911 p_picture->p->i_lines = i_height_aligned;
912 p_picture->p->i_visible_lines = i_height;
913 p_picture->p->i_pitch = i_width_aligned * 3;
914 p_picture->p->i_visible_pitch = i_width * 3;
915 p_picture->p->i_pixel_pitch = 3;
916 p_picture->i_planes = 1;
919 case VLC_CODEC_RGB32:
921 p_picture->p->i_lines = i_height_aligned;
922 p_picture->p->i_visible_lines = i_height;
923 p_picture->p->i_pitch = i_width_aligned * 4;
924 p_picture->p->i_visible_pitch = i_width * 4;
925 p_picture->p->i_pixel_pitch = 4;
926 p_picture->i_planes = 1;
931 p_picture->p->i_lines = i_height_aligned;
932 p_picture->p->i_visible_lines = i_height;
933 p_picture->p->i_pitch = i_width_aligned;
934 p_picture->p->i_visible_pitch = i_width;
935 p_picture->p->i_pixel_pitch = 1;
936 p_picture->i_planes = 1;
940 p_picture->i_planes = 0;
947 /*****************************************************************************
949 *****************************************************************************/
950 picture_t *picture_NewFromResource( const video_format_t *p_fmt, const picture_resource_t *p_resource )
952 video_format_t fmt = *p_fmt;
954 /* It is needed to be sure all informations are filled */
955 video_format_Setup( &fmt, p_fmt->i_chroma,
956 p_fmt->i_width, p_fmt->i_height,
957 p_fmt->i_sar_num, p_fmt->i_sar_den );
960 picture_t *p_picture = calloc( 1, sizeof(*p_picture) );
966 if( picture_Setup( p_picture, fmt.i_chroma, fmt.i_width, fmt.i_height,
967 fmt.i_sar_num, fmt.i_sar_den ) )
972 p_picture->p_sys = p_resource->p_sys;
974 for( int i = 0; i < p_picture->i_planes; i++ )
976 p_picture->p[i].p_pixels = p_resource->p[i].p_pixels;
977 p_picture->p[i].i_lines = p_resource->p[i].i_lines;
978 p_picture->p[i].i_pitch = p_resource->p[i].i_pitch;
983 if( vout_AllocatePicture( (vlc_object_t *)NULL, p_picture,
984 fmt.i_chroma, fmt.i_width, fmt.i_height,
985 fmt.i_sar_num, fmt.i_sar_den ) )
992 p_picture->format = fmt;
993 p_picture->i_refcount = 1;
994 p_picture->pf_release = PictureReleaseCallback;
995 p_picture->i_status = RESERVED_PICTURE;
999 picture_t *picture_NewFromFormat( const video_format_t *p_fmt )
1001 return picture_NewFromResource( p_fmt, NULL );
1003 picture_t *picture_New( vlc_fourcc_t i_chroma, int i_width, int i_height, int i_sar_num, int i_sar_den )
1007 memset( &fmt, 0, sizeof(fmt) );
1008 video_format_Setup( &fmt, i_chroma, i_width, i_height,
1009 i_sar_num, i_sar_den );
1011 return picture_NewFromFormat( &fmt );
1014 /*****************************************************************************
1016 *****************************************************************************/
1017 void picture_Delete( picture_t *p_picture )
1019 assert( p_picture && p_picture->i_refcount == 0 );
1020 assert( p_picture->p_release_sys == NULL );
1022 free( p_picture->p_q );
1023 free( p_picture->p_data_orig );
1024 free( p_picture->p_sys );
1028 /*****************************************************************************
1030 *****************************************************************************/
1031 void picture_CopyPixels( picture_t *p_dst, const picture_t *p_src )
1035 for( i = 0; i < p_src->i_planes ; i++ )
1036 plane_CopyPixels( p_dst->p+i, p_src->p+i );
1039 void plane_CopyPixels( plane_t *p_dst, const plane_t *p_src )
1041 const unsigned i_width = __MIN( p_dst->i_visible_pitch,
1042 p_src->i_visible_pitch );
1043 const unsigned i_height = __MIN( p_dst->i_visible_lines,
1044 p_src->i_visible_lines );
1046 if( p_src->i_pitch == p_dst->i_pitch )
1048 /* There are margins, but with the same width : perfect ! */
1049 vlc_memcpy( p_dst->p_pixels, p_src->p_pixels,
1050 p_src->i_pitch * i_height );
1054 /* We need to proceed line by line */
1055 uint8_t *p_in = p_src->p_pixels;
1056 uint8_t *p_out = p_dst->p_pixels;
1062 for( i_line = i_height; i_line--; )
1064 vlc_memcpy( p_out, p_in, i_width );
1065 p_in += p_src->i_pitch;
1066 p_out += p_dst->i_pitch;
1071 /*****************************************************************************
1073 *****************************************************************************/
1074 int picture_Export( vlc_object_t *p_obj,
1076 video_format_t *p_fmt,
1077 picture_t *p_picture,
1078 vlc_fourcc_t i_format,
1079 int i_override_width, int i_override_height )
1082 video_format_t fmt_in = p_picture->format;
1083 if( fmt_in.i_sar_num <= 0 || fmt_in.i_sar_den <= 0 )
1086 fmt_in.i_sar_den = 1;
1090 video_format_t fmt_out;
1091 memset( &fmt_out, 0, sizeof(fmt_out) );
1093 fmt_out.i_sar_den = 1;
1094 fmt_out.i_chroma = i_format;
1096 /* compute original width/height */
1097 unsigned int i_original_width;
1098 unsigned int i_original_height;
1099 if( fmt_in.i_sar_num >= fmt_in.i_sar_den )
1101 i_original_width = fmt_in.i_width * fmt_in.i_sar_num / fmt_in.i_sar_den;
1102 i_original_height = fmt_in.i_height;
1106 i_original_width = fmt_in.i_width;
1107 i_original_height = fmt_in.i_height * fmt_in.i_sar_den / fmt_in.i_sar_num;
1111 fmt_out.i_width = ( i_override_width < 0 ) ?
1112 i_original_width : i_override_width;
1113 fmt_out.i_height = ( i_override_height < 0 ) ?
1114 i_original_height : i_override_height;
1116 /* scale if only one direction is provided */
1117 if( fmt_out.i_height == 0 && fmt_out.i_width > 0 )
1119 fmt_out.i_height = fmt_in.i_height * fmt_out.i_width
1120 * fmt_in.i_sar_den / fmt_in.i_width / fmt_in.i_sar_num;
1122 else if( fmt_out.i_width == 0 && fmt_out.i_height > 0 )
1124 fmt_out.i_width = fmt_in.i_width * fmt_out.i_height
1125 * fmt_in.i_sar_num / fmt_in.i_height / fmt_in.i_sar_den;
1128 image_handler_t *p_image = image_HandlerCreate( p_obj );
1130 block_t *p_block = image_Write( p_image, p_picture, &fmt_in, &fmt_out );
1132 image_HandlerDelete( p_image );
1135 return VLC_EGENERIC;
1138 p_block->i_dts = p_picture->date;
1142 *pp_image = p_block;