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>
42 #include "vout_pictures.h"
43 #include "vout_internal.h"
48 * Remove the reservation flag of a picture, which will cause it to be ready
51 void vout_DisplayPicture( vout_thread_t *p_vout, picture_t *p_pic )
53 vlc_mutex_lock( &p_vout->picture_lock );
55 if( p_pic->i_status == RESERVED_PICTURE )
57 p_pic->i_status = READY_PICTURE;
58 vlc_cond_signal( &p_vout->p->picture_wait );
62 msg_Err( p_vout, "picture to display %p has invalid status %d",
63 p_pic, p_pic->i_status );
65 p_vout->p->i_picture_qtype = p_pic->i_qtype;
67 vlc_mutex_unlock( &p_vout->picture_lock );
71 * Allocate a picture in the video output heap.
73 * This function creates a reserved image in the video output heap.
74 * A null pointer is returned if the function fails. This method provides an
75 * already allocated zone of memory in the picture data fields.
76 * It needs locking since several pictures can be created by several producers
79 int vout_CountPictureAvailable( vout_thread_t *p_vout )
84 vlc_mutex_lock( &p_vout->picture_lock );
85 for( i_pic = 0; i_pic < I_RENDERPICTURES; i_pic++ )
87 picture_t *p_pic = PP_RENDERPICTURE[(p_vout->render.i_last_used_pic + i_pic + 1) % I_RENDERPICTURES];
89 switch( p_pic->i_status )
91 case DESTROYED_PICTURE:
103 vlc_mutex_unlock( &p_vout->picture_lock );
108 picture_t *vout_CreatePicture( vout_thread_t *p_vout,
110 bool b_top_field_first,
111 unsigned int i_nb_fields )
113 int i_pic; /* picture index */
115 picture_t * p_freepic = NULL; /* first free picture */
118 vlc_mutex_lock( &p_vout->picture_lock );
121 * Look for an empty place in the picture heap.
123 for( i_pic = 0; i_pic < I_RENDERPICTURES; i_pic++ )
125 p_pic = PP_RENDERPICTURE[(p_vout->render.i_last_used_pic + i_pic + 1)
128 switch( p_pic->i_status )
130 case DESTROYED_PICTURE:
131 /* Memory will not be reallocated, and function can end
132 * immediately - this is the best possible case, since no
133 * memory allocation needs to be done */
134 p_pic->i_status = RESERVED_PICTURE;
135 p_pic->i_refcount = 0;
138 p_pic->b_progressive = b_progressive;
139 p_pic->i_nb_fields = i_nb_fields;
140 p_pic->b_top_field_first = b_top_field_first;
142 p_vout->i_heap_size++;
143 p_vout->render.i_last_used_pic =
144 ( p_vout->render.i_last_used_pic + i_pic + 1 )
146 vlc_mutex_unlock( &p_vout->picture_lock );
150 /* Picture is empty and ready for allocation */
151 p_vout->render.i_last_used_pic =
152 ( p_vout->render.i_last_used_pic + i_pic + 1 )
165 if( p_freepic != NULL )
167 vout_AllocatePicture( VLC_OBJECT(p_vout),
168 p_freepic, p_vout->render.i_chroma,
169 p_vout->render.i_width, p_vout->render.i_height,
170 p_vout->render.i_aspect );
172 if( p_freepic->i_planes )
174 /* Copy picture information, set some default values */
175 p_freepic->i_status = RESERVED_PICTURE;
176 p_freepic->i_type = MEMORY_PICTURE;
177 p_freepic->b_slow = 0;
179 p_freepic->i_refcount = 0;
180 p_freepic->b_force = 0;
182 p_freepic->b_progressive = b_progressive;
183 p_freepic->i_nb_fields = i_nb_fields;
184 p_freepic->b_top_field_first = b_top_field_first;
186 p_vout->i_heap_size++;
190 /* Memory allocation failed : set picture as empty */
191 p_freepic->i_status = FREE_PICTURE;
194 msg_Err( p_vout, "picture allocation failed" );
197 vlc_mutex_unlock( &p_vout->picture_lock );
202 /* No free or destroyed picture could be found, but the decoder
203 * will try again in a while. */
204 vlc_mutex_unlock( &p_vout->picture_lock );
210 static void DestroyPicture( vout_thread_t *p_vout, picture_t *p_picture )
212 vlc_assert_locked( &p_vout->picture_lock );
214 p_picture->i_status = DESTROYED_PICTURE;
215 p_vout->i_heap_size--;
216 picture_CleanupQuant( p_picture );
218 vlc_cond_signal( &p_vout->p->picture_wait );
222 * Remove a permanent or reserved picture from the heap
224 * This function frees a previously reserved picture or a permanent
225 * picture. It is meant to be used when the construction of a picture aborted.
226 * Note that the picture will be destroyed even if it is linked !
228 * TODO remove it, vout_DropPicture should be used instead
230 void vout_DestroyPicture( vout_thread_t *p_vout, picture_t *p_pic )
233 /* Check if picture status is valid */
234 vlc_mutex_lock( &p_vout->picture_lock );
235 if( p_pic->i_status != RESERVED_PICTURE )
237 msg_Err( p_vout, "picture to destroy %p has invalid status %d",
238 p_pic, p_pic->i_status );
240 vlc_mutex_unlock( &p_vout->picture_lock );
243 vout_DropPicture( p_vout, p_pic );
247 void vout_UsePictureLocked( vout_thread_t *p_vout, picture_t *p_picture )
249 vlc_assert_locked( &p_vout->picture_lock );
250 if( p_picture->i_refcount > 0 )
252 /* Pretend we displayed the picture, but don't destroy
253 * it since the decoder might still need it. */
254 p_picture->i_status = DISPLAYED_PICTURE;
258 /* Destroy the picture without displaying it */
259 DestroyPicture( p_vout, p_picture );
264 void vout_DropPicture( vout_thread_t *p_vout, picture_t *p_pic )
266 vlc_mutex_lock( &p_vout->picture_lock );
268 if( p_pic->i_status == READY_PICTURE )
270 /* Grr cannot destroy ready picture by myself so be sure vout won't like it */
272 vlc_cond_signal( &p_vout->p->picture_wait );
276 vout_UsePictureLocked( p_vout, p_pic );
279 vlc_mutex_unlock( &p_vout->picture_lock );
283 * Increment reference counter of a picture
285 * This function increments the reference counter of a picture in the video
286 * heap. It needs a lock since several producer threads can access the picture.
288 void vout_LinkPicture( vout_thread_t *p_vout, picture_t *p_pic )
290 vlc_mutex_lock( &p_vout->picture_lock );
292 vlc_mutex_unlock( &p_vout->picture_lock );
296 * Decrement reference counter of a picture
298 * This function decrement the reference counter of a picture in the video heap
300 void vout_UnlinkPicture( vout_thread_t *p_vout, picture_t *p_pic )
302 vlc_mutex_lock( &p_vout->picture_lock );
304 if( p_pic->i_refcount > 0 )
307 msg_Err( p_vout, "Invalid picture reference count (%p, %d)",
308 p_pic, p_pic->i_refcount );
310 if( p_pic->i_refcount == 0 && p_pic->i_status == DISPLAYED_PICTURE )
311 DestroyPicture( p_vout, p_pic );
313 vlc_mutex_unlock( &p_vout->picture_lock );
316 static int vout_LockPicture( vout_thread_t *p_vout, picture_t *p_picture )
318 if( p_picture->pf_lock )
319 return p_picture->pf_lock( p_vout, p_picture );
322 static void vout_UnlockPicture( vout_thread_t *p_vout, picture_t *p_picture )
324 if( p_picture->pf_unlock )
325 p_picture->pf_unlock( p_vout, p_picture );
331 * This function chooses whether the current picture needs to be copied
332 * before rendering, does the subpicture magic, and tells the video output
333 * thread which direct buffer needs to be displayed.
335 picture_t *vout_RenderPicture( vout_thread_t *p_vout, picture_t *p_pic,
336 subpicture_t *p_subpic, bool b_paused )
341 if( p_pic->i_type == DIRECT_PICTURE )
343 /* Picture is in a direct buffer. */
345 if( p_subpic != NULL )
347 /* We have subtitles. First copy the picture to
348 * the spare direct buffer, then render the
350 if( vout_LockPicture( p_vout, PP_OUTPUTPICTURE[0] ) )
353 picture_Copy( PP_OUTPUTPICTURE[0], p_pic );
355 spu_RenderSubpictures( p_vout->p_spu,
356 PP_OUTPUTPICTURE[0], &p_vout->fmt_out,
357 p_subpic, &p_vout->fmt_in, b_paused );
359 vout_UnlockPicture( p_vout, PP_OUTPUTPICTURE[0] );
361 return PP_OUTPUTPICTURE[0];
364 /* No subtitles, picture is in a directbuffer so
365 * we can display it directly (even if it is still
370 /* Not a direct buffer. We either need to copy it to a direct buffer,
371 * or render it if the chroma isn't the same. */
372 if( p_vout->p->b_direct )
374 /* Picture is not in a direct buffer, but is exactly the
375 * same size as the direct buffers. A memcpy() is enough,
376 * then render the subtitles. */
378 if( vout_LockPicture( p_vout, PP_OUTPUTPICTURE[0] ) )
381 picture_Copy( PP_OUTPUTPICTURE[0], p_pic );
382 spu_RenderSubpictures( p_vout->p_spu,
383 PP_OUTPUTPICTURE[0], &p_vout->fmt_out,
384 p_subpic, &p_vout->fmt_in, b_paused );
386 vout_UnlockPicture( p_vout, PP_OUTPUTPICTURE[0] );
388 return PP_OUTPUTPICTURE[0];
391 /* Picture is not in a direct buffer, and needs to be converted to
392 * another size/chroma. Then the subtitles need to be rendered as
393 * well. This usually means software YUV, or hardware YUV with a
394 * different chroma. */
396 if( p_subpic != NULL && p_vout->p_picture[0].b_slow )
398 /* The picture buffer is in slow memory. We'll use
399 * the "2 * VOUT_MAX_PICTURES + 1" picture as a temporary
400 * one for subpictures rendering. */
401 picture_t *p_tmp_pic = &p_vout->p_picture[2 * VOUT_MAX_PICTURES];
402 if( p_tmp_pic->i_status == FREE_PICTURE )
404 vout_AllocatePicture( VLC_OBJECT(p_vout),
405 p_tmp_pic, p_vout->fmt_out.i_chroma,
406 p_vout->fmt_out.i_width,
407 p_vout->fmt_out.i_height,
408 p_vout->fmt_out.i_aspect );
409 p_tmp_pic->i_type = MEMORY_PICTURE;
410 p_tmp_pic->i_status = RESERVED_PICTURE;
413 /* Convert image to the first direct buffer */
414 p_vout->p->p_chroma->p_owner = (filter_owner_sys_t *)p_tmp_pic;
415 p_vout->p->p_chroma->pf_video_filter( p_vout->p->p_chroma, p_pic );
417 /* Render subpictures on the first direct buffer */
418 spu_RenderSubpictures( p_vout->p_spu,
419 p_tmp_pic, &p_vout->fmt_out,
420 p_subpic, &p_vout->fmt_in, b_paused );
422 if( vout_LockPicture( p_vout, &p_vout->p_picture[0] ) )
425 picture_Copy( &p_vout->p_picture[0], p_tmp_pic );
429 if( vout_LockPicture( p_vout, &p_vout->p_picture[0] ) )
432 /* Convert image to the first direct buffer */
433 p_vout->p->p_chroma->p_owner = (filter_owner_sys_t *)&p_vout->p_picture[0];
434 p_vout->p->p_chroma->pf_video_filter( p_vout->p->p_chroma, p_pic );
436 /* Render subpictures on the first direct buffer */
437 spu_RenderSubpictures( p_vout->p_spu,
438 &p_vout->p_picture[0], &p_vout->fmt_out,
439 p_subpic, &p_vout->fmt_in, b_paused );
442 vout_UnlockPicture( p_vout, &p_vout->p_picture[0] );
444 return &p_vout->p_picture[0];
448 * Calculate image window coordinates
450 * This function will be accessed by plugins. It calculates the relative
451 * position of the output window and the image window.
453 void vout_PlacePicture( const vout_thread_t *p_vout,
454 unsigned int i_width, unsigned int i_height,
455 unsigned int *restrict pi_x,
456 unsigned int *restrict pi_y,
457 unsigned int *restrict pi_width,
458 unsigned int *restrict pi_height )
460 if( i_width <= 0 || i_height <= 0 )
462 *pi_width = *pi_height = *pi_x = *pi_y = 0;
466 if( p_vout->b_autoscale )
469 *pi_height = i_height;
473 int i_zoom = p_vout->i_zoom;
474 /* be realistic, scaling factor confined between .2 and 10. */
475 if( i_zoom > 10 * ZOOM_FP_FACTOR ) i_zoom = 10 * ZOOM_FP_FACTOR;
476 else if( i_zoom < ZOOM_FP_FACTOR / 5 ) i_zoom = ZOOM_FP_FACTOR / 5;
478 unsigned int i_original_width, i_original_height;
480 if( p_vout->fmt_in.i_sar_num >= p_vout->fmt_in.i_sar_den )
482 i_original_width = p_vout->fmt_in.i_visible_width *
483 p_vout->fmt_in.i_sar_num / p_vout->fmt_in.i_sar_den;
484 i_original_height = p_vout->fmt_in.i_visible_height;
488 i_original_width = p_vout->fmt_in.i_visible_width;
489 i_original_height = p_vout->fmt_in.i_visible_height *
490 p_vout->fmt_in.i_sar_den / p_vout->fmt_in.i_sar_num;
493 /* On windows, inner video window exceeding container leads to black screen */
494 *pi_width = __MIN( i_width, i_original_width * i_zoom / ZOOM_FP_FACTOR );
495 *pi_height = __MIN( i_height, i_original_height * i_zoom / ZOOM_FP_FACTOR );
497 *pi_width = i_original_width * i_zoom / ZOOM_FP_FACTOR ;
498 *pi_height = i_original_height * i_zoom / ZOOM_FP_FACTOR ;
502 int64_t i_scaled_width = p_vout->fmt_in.i_visible_width * (int64_t)p_vout->fmt_in.i_sar_num *
503 *pi_height / p_vout->fmt_in.i_visible_height / p_vout->fmt_in.i_sar_den;
504 int64_t i_scaled_height = p_vout->fmt_in.i_visible_height * (int64_t)p_vout->fmt_in.i_sar_den *
505 *pi_width / p_vout->fmt_in.i_visible_width / p_vout->fmt_in.i_sar_num;
507 if( i_scaled_width <= 0 || i_scaled_height <= 0 )
509 msg_Warn( p_vout, "ignoring broken aspect ratio" );
510 i_scaled_width = *pi_width;
511 i_scaled_height = *pi_height;
514 if( i_scaled_width > *pi_width )
515 *pi_height = i_scaled_height;
517 *pi_width = i_scaled_width;
519 switch( p_vout->i_alignment & VOUT_ALIGN_HMASK )
521 case VOUT_ALIGN_LEFT:
524 case VOUT_ALIGN_RIGHT:
525 *pi_x = i_width - *pi_width;
528 *pi_x = ( i_width - *pi_width ) / 2;
531 switch( p_vout->i_alignment & VOUT_ALIGN_VMASK )
536 case VOUT_ALIGN_BOTTOM:
537 *pi_y = i_height - *pi_height;
540 *pi_y = ( i_height - *pi_height ) / 2;
545 * Allocate a new picture in the heap.
547 * This function allocates a fake direct buffer in memory, which can be
548 * used exactly like a video buffer. The video output thread then manages
549 * how it gets displayed.
551 int __vout_AllocatePicture( vlc_object_t *p_this, picture_t *p_pic,
552 vlc_fourcc_t i_chroma,
553 int i_width, int i_height, int i_aspect )
555 int i_bytes, i_index, i_width_aligned, i_height_aligned;
557 /* Make sure the real dimensions are a multiple of 16 */
558 i_width_aligned = (i_width + 15) >> 4 << 4;
559 i_height_aligned = (i_height + 15) >> 4 << 4;
561 if( picture_Setup( p_pic, i_chroma,
562 i_width, i_height, i_aspect ) != VLC_SUCCESS )
568 /* Calculate how big the new image should be */
569 i_bytes = p_pic->format.i_bits_per_pixel *
570 i_width_aligned * i_height_aligned / 8;
572 p_pic->p_data = vlc_memalign( &p_pic->p_data_orig, 16, i_bytes );
574 if( p_pic->p_data == NULL )
580 /* Fill the p_pixels field for each plane */
581 p_pic->p[ 0 ].p_pixels = p_pic->p_data;
583 for( i_index = 1; i_index < p_pic->i_planes; i_index++ )
585 p_pic->p[i_index].p_pixels = p_pic->p[i_index-1].p_pixels +
586 p_pic->p[i_index-1].i_lines * p_pic->p[i_index-1].i_pitch;
593 * Compare two chroma values
595 * This function returns 1 if the two fourcc values given as argument are
596 * the same format (eg. UYVY/UYNV) or almost the same format (eg. I420/YV12)
598 int vout_ChromaCmp( vlc_fourcc_t i_chroma, vlc_fourcc_t i_amorhc )
600 static const vlc_fourcc_t p_I420[] = {
601 VLC_CODEC_I420, VLC_CODEC_YV12, VLC_CODEC_J420, 0
603 static const vlc_fourcc_t p_I422[] = {
604 VLC_CODEC_I422, VLC_CODEC_J422, 0
606 static const vlc_fourcc_t p_I440[] = {
607 VLC_CODEC_I440, VLC_CODEC_J440, 0
609 static const vlc_fourcc_t p_I444[] = {
610 VLC_CODEC_I444, VLC_CODEC_J444, 0
612 static const vlc_fourcc_t *pp_fcc[] = {
613 p_I420, p_I422, p_I440, p_I444, NULL
617 i_chroma = vlc_fourcc_GetCodec( VIDEO_ES, i_chroma );
618 i_amorhc = vlc_fourcc_GetCodec( VIDEO_ES, i_amorhc );
620 /* If they are the same, they are the same ! */
621 if( i_chroma == i_amorhc )
624 /* Check for equivalence classes */
625 for( int i = 0; pp_fcc[i] != NULL; i++ )
629 for( int j = 0; pp_fcc[i][j] != 0; j++ )
631 if( i_chroma == pp_fcc[i][j] )
633 if( i_amorhc == pp_fcc[i][j] )
636 if( b_fcc1 && b_fcc2 )
642 /*****************************************************************************
644 *****************************************************************************/
645 static void PictureReleaseCallback( picture_t *p_picture )
647 if( --p_picture->i_refcount > 0 )
649 picture_Delete( p_picture );
652 /*****************************************************************************
654 *****************************************************************************/
655 void picture_Reset( picture_t *p_picture )
658 p_picture->date = VLC_TS_INVALID;
659 p_picture->b_force = false;
660 p_picture->b_progressive = false;
661 p_picture->i_nb_fields = 0;
662 p_picture->b_top_field_first = false;
663 picture_CleanupQuant( p_picture );
666 /*****************************************************************************
668 *****************************************************************************/
669 int picture_Setup( picture_t *p_picture, vlc_fourcc_t i_chroma, int i_width, int i_height, int i_aspect )
671 int i_index, i_width_aligned, i_height_aligned;
673 /* Store default values */
674 for( i_index = 0; i_index < VOUT_MAX_PLANES; i_index++ )
676 p_picture->p[i_index].p_pixels = NULL;
677 p_picture->p[i_index].i_pixel_pitch = 1;
680 p_picture->pf_release = NULL;
681 p_picture->p_release_sys = NULL;
682 p_picture->pf_lock = NULL;
683 p_picture->pf_unlock = NULL;
684 p_picture->i_refcount = 0;
686 p_picture->i_qtype = QTYPE_NONE;
687 p_picture->i_qstride = 0;
688 p_picture->p_q = NULL;
690 video_format_Setup( &p_picture->format, i_chroma, i_width, i_height, i_aspect );
692 /* Make sure the real dimensions are a multiple of 16 */
693 i_width_aligned = (i_width + 15) >> 4 << 4;
694 i_height_aligned = (i_height + 15) >> 4 << 4;
696 /* Calculate coordinates */
697 switch( vlc_fourcc_GetCodec( VIDEO_ES, i_chroma ) )
700 p_picture->p[ Y_PLANE ].i_lines = i_height_aligned;
701 p_picture->p[ Y_PLANE ].i_visible_lines = i_height;
702 p_picture->p[ Y_PLANE ].i_pitch = i_width_aligned;
703 p_picture->p[ Y_PLANE ].i_visible_pitch = i_width;
704 p_picture->p[ U_PLANE ].i_lines = i_height_aligned;
705 p_picture->p[ U_PLANE ].i_visible_lines = i_height;
706 p_picture->p[ U_PLANE ].i_pitch = i_width_aligned / 4;
707 p_picture->p[ U_PLANE ].i_visible_pitch = i_width / 4;
708 p_picture->p[ V_PLANE ].i_lines = i_height_aligned;
709 p_picture->p[ V_PLANE ].i_visible_lines = i_height;
710 p_picture->p[ V_PLANE ].i_pitch = i_width_aligned / 4;
711 p_picture->p[ V_PLANE ].i_visible_pitch = i_width / 4;
712 p_picture->i_planes = 3;
716 p_picture->p[ Y_PLANE ].i_lines = i_height_aligned;
717 p_picture->p[ Y_PLANE ].i_visible_lines = i_height;
718 p_picture->p[ Y_PLANE ].i_pitch = i_width_aligned;
719 p_picture->p[ Y_PLANE ].i_visible_pitch = i_width;
720 p_picture->p[ U_PLANE ].i_lines = i_height_aligned / 4;
721 p_picture->p[ U_PLANE ].i_visible_lines = i_height / 4;
722 p_picture->p[ U_PLANE ].i_pitch = i_width_aligned / 4;
723 p_picture->p[ U_PLANE ].i_visible_pitch = i_width / 4;
724 p_picture->p[ V_PLANE ].i_lines = i_height_aligned / 4;
725 p_picture->p[ V_PLANE ].i_visible_lines = i_height / 4;
726 p_picture->p[ V_PLANE ].i_pitch = i_width_aligned / 4;
727 p_picture->p[ V_PLANE ].i_visible_pitch = i_width / 4;
728 p_picture->i_planes = 3;
734 p_picture->p[ Y_PLANE ].i_lines = i_height_aligned;
735 p_picture->p[ Y_PLANE ].i_visible_lines = i_height;
736 p_picture->p[ Y_PLANE ].i_pitch = i_width_aligned;
737 p_picture->p[ Y_PLANE ].i_visible_pitch = i_width;
738 p_picture->p[ U_PLANE ].i_lines = i_height_aligned / 2;
739 p_picture->p[ U_PLANE ].i_visible_lines = i_height / 2;
740 p_picture->p[ U_PLANE ].i_pitch = i_width_aligned / 2;
741 p_picture->p[ U_PLANE ].i_visible_pitch = i_width / 2;
742 p_picture->p[ V_PLANE ].i_lines = i_height_aligned / 2;
743 p_picture->p[ V_PLANE ].i_visible_lines = i_height / 2;
744 p_picture->p[ V_PLANE ].i_pitch = i_width_aligned / 2;
745 p_picture->p[ V_PLANE ].i_visible_pitch = i_width / 2;
746 p_picture->i_planes = 3;
751 p_picture->p[ Y_PLANE ].i_lines = i_height_aligned;
752 p_picture->p[ Y_PLANE ].i_visible_lines = i_height;
753 p_picture->p[ Y_PLANE ].i_pitch = i_width_aligned;
754 p_picture->p[ Y_PLANE ].i_visible_pitch = i_width;
755 p_picture->p[ U_PLANE ].i_lines = i_height_aligned;
756 p_picture->p[ U_PLANE ].i_visible_lines = i_height;
757 p_picture->p[ U_PLANE ].i_pitch = i_width_aligned / 2;
758 p_picture->p[ U_PLANE ].i_visible_pitch = i_width / 2;
759 p_picture->p[ V_PLANE ].i_lines = i_height_aligned;
760 p_picture->p[ V_PLANE ].i_visible_lines = i_height;
761 p_picture->p[ V_PLANE ].i_pitch = i_width_aligned / 2;
762 p_picture->p[ V_PLANE ].i_visible_pitch = i_width / 2;
763 p_picture->i_planes = 3;
768 p_picture->p[ Y_PLANE ].i_lines = i_height_aligned;
769 p_picture->p[ Y_PLANE ].i_visible_lines = i_height;
770 p_picture->p[ Y_PLANE ].i_pitch = i_width_aligned;
771 p_picture->p[ Y_PLANE ].i_visible_pitch = i_width;
772 p_picture->p[ U_PLANE ].i_lines = i_height_aligned / 2;
773 p_picture->p[ U_PLANE ].i_visible_lines = i_height / 2;
774 p_picture->p[ U_PLANE ].i_pitch = i_width_aligned;
775 p_picture->p[ U_PLANE ].i_visible_pitch = i_width;
776 p_picture->p[ V_PLANE ].i_lines = i_height_aligned / 2;
777 p_picture->p[ V_PLANE ].i_visible_lines = i_height / 2;
778 p_picture->p[ V_PLANE ].i_pitch = i_width_aligned;
779 p_picture->p[ V_PLANE ].i_visible_pitch = i_width;
780 p_picture->i_planes = 3;
785 p_picture->p[ Y_PLANE ].i_lines = i_height_aligned;
786 p_picture->p[ Y_PLANE ].i_visible_lines = i_height;
787 p_picture->p[ Y_PLANE ].i_pitch = i_width_aligned;
788 p_picture->p[ Y_PLANE ].i_visible_pitch = i_width;
789 p_picture->p[ U_PLANE ].i_lines = i_height_aligned;
790 p_picture->p[ U_PLANE ].i_visible_lines = i_height;
791 p_picture->p[ U_PLANE ].i_pitch = i_width_aligned;
792 p_picture->p[ U_PLANE ].i_visible_pitch = i_width;
793 p_picture->p[ V_PLANE ].i_lines = i_height_aligned;
794 p_picture->p[ V_PLANE ].i_visible_lines = i_height;
795 p_picture->p[ V_PLANE ].i_pitch = i_width_aligned;
796 p_picture->p[ V_PLANE ].i_visible_pitch = i_width;
797 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;
806 p_picture->p[ U_PLANE ].i_visible_lines = i_height;
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;
810 p_picture->p[ V_PLANE ].i_visible_lines = i_height;
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->p[ A_PLANE ].i_lines = i_height_aligned;
814 p_picture->p[ A_PLANE ].i_visible_lines = i_height;
815 p_picture->p[ A_PLANE ].i_pitch = i_width_aligned;
816 p_picture->p[ A_PLANE ].i_visible_pitch = i_width;
817 p_picture->i_planes = 4;
821 p_picture->p->i_lines = i_height_aligned;
822 p_picture->p->i_visible_lines = i_height;
823 p_picture->p->i_pitch = i_width_aligned;
824 p_picture->p->i_visible_pitch = i_width;
825 p_picture->p->i_pixel_pitch = 8;
826 p_picture->i_planes = 1;
830 p_picture->p->i_lines = i_height_aligned;
831 p_picture->p->i_visible_lines = i_height;
832 p_picture->p->i_pitch = i_width_aligned;
833 p_picture->p->i_visible_pitch = i_width;
834 p_picture->p->i_pixel_pitch = 4;
835 p_picture->i_planes = 1;
842 p_picture->p->i_lines = i_height_aligned;
843 p_picture->p->i_visible_lines = i_height;
844 p_picture->p->i_pitch = i_width_aligned * 2;
845 p_picture->p->i_visible_pitch = i_width * 2;
846 p_picture->p->i_pixel_pitch = 4;
847 p_picture->i_planes = 1;
851 p_picture->p->i_lines = i_height_aligned;
852 p_picture->p->i_visible_lines = i_height;
853 p_picture->p->i_pitch = i_width_aligned;
854 p_picture->p->i_visible_pitch = i_width;
855 p_picture->p->i_pixel_pitch = 1;
856 p_picture->i_planes = 1;
859 case VLC_CODEC_RGB15:
860 p_picture->p->i_lines = i_height_aligned;
861 p_picture->p->i_visible_lines = i_height;
862 p_picture->p->i_pitch = i_width_aligned * 2;
863 p_picture->p->i_visible_pitch = i_width * 2;
864 p_picture->p->i_pixel_pitch = 2;
865 p_picture->i_planes = 1;
868 case VLC_CODEC_RGB16:
869 p_picture->p->i_lines = i_height_aligned;
870 p_picture->p->i_visible_lines = i_height;
871 p_picture->p->i_pitch = i_width_aligned * 2;
872 p_picture->p->i_visible_pitch = i_width * 2;
873 p_picture->p->i_pixel_pitch = 2;
874 p_picture->i_planes = 1;
877 case VLC_CODEC_RGB24:
878 p_picture->p->i_lines = i_height_aligned;
879 p_picture->p->i_visible_lines = i_height;
880 p_picture->p->i_pitch = i_width_aligned * 3;
881 p_picture->p->i_visible_pitch = i_width * 3;
882 p_picture->p->i_pixel_pitch = 3;
883 p_picture->i_planes = 1;
886 case VLC_CODEC_RGB32:
888 p_picture->p->i_lines = i_height_aligned;
889 p_picture->p->i_visible_lines = i_height;
890 p_picture->p->i_pitch = i_width_aligned * 4;
891 p_picture->p->i_visible_pitch = i_width * 4;
892 p_picture->p->i_pixel_pitch = 4;
893 p_picture->i_planes = 1;
898 p_picture->p->i_lines = i_height_aligned;
899 p_picture->p->i_visible_lines = i_height;
900 p_picture->p->i_pitch = i_width_aligned;
901 p_picture->p->i_visible_pitch = i_width;
902 p_picture->p->i_pixel_pitch = 1;
903 p_picture->i_planes = 1;
907 p_picture->i_planes = 0;
914 /*****************************************************************************
916 *****************************************************************************/
917 picture_t *picture_New( vlc_fourcc_t i_chroma, int i_width, int i_height, int i_aspect )
919 picture_t *p_picture = calloc( 1, sizeof(*p_picture) );
923 if( __vout_AllocatePicture( NULL, p_picture,
924 i_chroma, i_width, i_height, i_aspect ) )
930 p_picture->i_refcount = 1;
931 p_picture->pf_release = PictureReleaseCallback;
932 p_picture->i_status = RESERVED_PICTURE;
937 /*****************************************************************************
939 *****************************************************************************/
940 void picture_Delete( picture_t *p_picture )
942 assert( p_picture && p_picture->i_refcount == 0 );
943 assert( p_picture->p_release_sys == NULL );
945 free( p_picture->p_q );
946 free( p_picture->p_data_orig );
947 free( p_picture->p_sys );
951 /*****************************************************************************
953 *****************************************************************************/
954 void picture_CopyPixels( picture_t *p_dst, const picture_t *p_src )
958 for( i = 0; i < p_src->i_planes ; i++ )
959 plane_CopyPixels( p_dst->p+i, p_src->p+i );
962 void plane_CopyPixels( plane_t *p_dst, const plane_t *p_src )
964 const unsigned i_width = __MIN( p_dst->i_visible_pitch,
965 p_src->i_visible_pitch );
966 const unsigned i_height = __MIN( p_dst->i_visible_lines,
967 p_src->i_visible_lines );
969 if( p_src->i_pitch == p_dst->i_pitch )
971 /* There are margins, but with the same width : perfect ! */
972 vlc_memcpy( p_dst->p_pixels, p_src->p_pixels,
973 p_src->i_pitch * i_height );
977 /* We need to proceed line by line */
978 uint8_t *p_in = p_src->p_pixels;
979 uint8_t *p_out = p_dst->p_pixels;
985 for( i_line = i_height; i_line--; )
987 vlc_memcpy( p_out, p_in, i_width );
988 p_in += p_src->i_pitch;
989 p_out += p_dst->i_pitch;
994 /*****************************************************************************
996 *****************************************************************************/
997 int picture_Export( vlc_object_t *p_obj,
999 video_format_t *p_fmt,
1000 picture_t *p_picture,
1001 vlc_fourcc_t i_format,
1002 int i_override_width, int i_override_height )
1005 video_format_t fmt_in = p_picture->format;
1006 if( fmt_in.i_sar_num <= 0 || fmt_in.i_sar_den <= 0 )
1009 fmt_in.i_sar_den = 1;
1013 video_format_t fmt_out;
1014 memset( &fmt_out, 0, sizeof(fmt_out) );
1016 fmt_out.i_sar_den = 1;
1017 fmt_out.i_chroma = i_format;
1019 /* compute original width/height */
1020 unsigned int i_original_width;
1021 unsigned int i_original_height;
1022 if( fmt_in.i_sar_num >= fmt_in.i_sar_den )
1024 i_original_width = fmt_in.i_width * fmt_in.i_sar_num / fmt_in.i_sar_den;
1025 i_original_height = fmt_in.i_height;
1029 i_original_width = fmt_in.i_width;
1030 i_original_height = fmt_in.i_height * fmt_in.i_sar_den / fmt_in.i_sar_num;
1034 fmt_out.i_width = ( i_override_width < 0 ) ?
1035 i_original_width : i_override_width;
1036 fmt_out.i_height = ( i_override_height < 0 ) ?
1037 i_original_height : i_override_height;
1039 /* scale if only one direction is provided */
1040 if( fmt_out.i_height == 0 && fmt_out.i_width > 0 )
1042 fmt_out.i_height = fmt_in.i_height * fmt_out.i_width
1043 * fmt_in.i_sar_den / fmt_in.i_width / fmt_in.i_sar_num;
1045 else if( fmt_out.i_width == 0 && fmt_out.i_height > 0 )
1047 fmt_out.i_width = fmt_in.i_width * fmt_out.i_height
1048 * fmt_in.i_sar_num / fmt_in.i_height / fmt_in.i_sar_den;
1051 image_handler_t *p_image = image_HandlerCreate( p_obj );
1053 block_t *p_block = image_Write( p_image, p_picture, &fmt_in, &fmt_out );
1055 image_HandlerDelete( p_image );
1058 return VLC_EGENERIC;
1061 p_block->i_dts = p_picture->date;
1065 *pp_image = p_block;
1070 /*****************************************************************************
1072 *****************************************************************************/