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 "vout_pictures.h"
40 #include "vout_internal.h"
45 * Remove the reservation flag of a picture, which will cause it to be ready
48 void vout_DisplayPicture( vout_thread_t *p_vout, picture_t *p_pic )
50 vlc_mutex_lock( &p_vout->picture_lock );
52 if( p_pic->i_status == RESERVED_PICTURE )
54 p_pic->i_status = READY_PICTURE;
55 vlc_cond_signal( &p_vout->p->picture_wait );
59 msg_Err( p_vout, "picture to display %p has invalid status %d",
60 p_pic, p_pic->i_status );
63 vlc_mutex_unlock( &p_vout->picture_lock );
67 * Allocate a picture in the video output heap.
69 * This function creates a reserved image in the video output heap.
70 * A null pointer is returned if the function fails. This method provides an
71 * already allocated zone of memory in the picture data fields.
72 * It needs locking since several pictures can be created by several producers
75 int vout_CountPictureAvailable( vout_thread_t *p_vout )
80 vlc_mutex_lock( &p_vout->picture_lock );
81 for( i_pic = 0; i_pic < I_RENDERPICTURES; i_pic++ )
83 picture_t *p_pic = PP_RENDERPICTURE[(p_vout->render.i_last_used_pic + i_pic + 1) % I_RENDERPICTURES];
85 switch( p_pic->i_status )
87 case DESTROYED_PICTURE:
99 vlc_mutex_unlock( &p_vout->picture_lock );
104 picture_t *vout_CreatePicture( vout_thread_t *p_vout,
106 bool b_top_field_first,
107 unsigned int i_nb_fields )
109 int i_pic; /* picture index */
111 picture_t * p_freepic = NULL; /* first free picture */
114 vlc_mutex_lock( &p_vout->picture_lock );
117 * Look for an empty place in the picture heap.
119 for( i_pic = 0; i_pic < I_RENDERPICTURES; i_pic++ )
121 p_pic = PP_RENDERPICTURE[(p_vout->render.i_last_used_pic + i_pic + 1)
124 switch( p_pic->i_status )
126 case DESTROYED_PICTURE:
127 /* Memory will not be reallocated, and function can end
128 * immediately - this is the best possible case, since no
129 * memory allocation needs to be done */
130 p_pic->i_status = RESERVED_PICTURE;
131 p_pic->i_refcount = 0;
134 p_pic->b_progressive = b_progressive;
135 p_pic->i_nb_fields = i_nb_fields;
136 p_pic->b_top_field_first = b_top_field_first;
138 p_vout->i_heap_size++;
139 p_vout->render.i_last_used_pic =
140 ( p_vout->render.i_last_used_pic + i_pic + 1 )
142 vlc_mutex_unlock( &p_vout->picture_lock );
146 /* Picture is empty and ready for allocation */
147 p_vout->render.i_last_used_pic =
148 ( p_vout->render.i_last_used_pic + i_pic + 1 )
161 if( p_freepic != NULL )
163 vout_AllocatePicture( VLC_OBJECT(p_vout),
164 p_freepic, p_vout->render.i_chroma,
165 p_vout->render.i_width, p_vout->render.i_height,
166 p_vout->render.i_aspect );
168 if( p_freepic->i_planes )
170 /* Copy picture information, set some default values */
171 p_freepic->i_status = RESERVED_PICTURE;
172 p_freepic->i_type = MEMORY_PICTURE;
173 p_freepic->b_slow = 0;
175 p_freepic->i_refcount = 0;
176 p_freepic->b_force = 0;
178 p_freepic->b_progressive = b_progressive;
179 p_freepic->i_nb_fields = i_nb_fields;
180 p_freepic->b_top_field_first = b_top_field_first;
182 p_vout->i_heap_size++;
186 /* Memory allocation failed : set picture as empty */
187 p_freepic->i_status = FREE_PICTURE;
190 msg_Err( p_vout, "picture allocation failed" );
193 vlc_mutex_unlock( &p_vout->picture_lock );
198 /* No free or destroyed picture could be found, but the decoder
199 * will try again in a while. */
200 vlc_mutex_unlock( &p_vout->picture_lock );
206 static void DestroyPicture( vout_thread_t *p_vout, picture_t *p_picture )
208 vlc_assert_locked( &p_vout->picture_lock );
210 p_picture->i_status = DESTROYED_PICTURE;
211 p_vout->i_heap_size--;
212 picture_CleanupQuant( p_picture );
214 vlc_cond_signal( &p_vout->p->picture_wait );
218 * Remove a permanent or reserved picture from the heap
220 * This function frees a previously reserved picture or a permanent
221 * picture. It is meant to be used when the construction of a picture aborted.
222 * Note that the picture will be destroyed even if it is linked !
224 * TODO remove it, vout_DropPicture should be used instead
226 void vout_DestroyPicture( vout_thread_t *p_vout, picture_t *p_pic )
229 /* Check if picture status is valid */
230 vlc_mutex_lock( &p_vout->picture_lock );
231 if( p_pic->i_status != RESERVED_PICTURE )
233 msg_Err( p_vout, "picture to destroy %p has invalid status %d",
234 p_pic, p_pic->i_status );
236 vlc_mutex_unlock( &p_vout->picture_lock );
239 vout_DropPicture( p_vout, p_pic );
243 void vout_UsePictureLocked( vout_thread_t *p_vout, picture_t *p_picture )
245 vlc_assert_locked( &p_vout->picture_lock );
246 if( p_picture->i_refcount > 0 )
248 /* Pretend we displayed the picture, but don't destroy
249 * it since the decoder might still need it. */
250 p_picture->i_status = DISPLAYED_PICTURE;
254 /* Destroy the picture without displaying it */
255 DestroyPicture( p_vout, p_picture );
260 void vout_DropPicture( vout_thread_t *p_vout, picture_t *p_pic )
262 vlc_mutex_lock( &p_vout->picture_lock );
264 if( p_pic->i_status == READY_PICTURE )
266 /* Grr cannot destroy ready picture by myself so be sure vout won't like it */
268 vlc_cond_signal( &p_vout->p->picture_wait );
272 vout_UsePictureLocked( p_vout, p_pic );
275 vlc_mutex_unlock( &p_vout->picture_lock );
279 * Increment reference counter of a picture
281 * This function increments the reference counter of a picture in the video
282 * heap. It needs a lock since several producer threads can access the picture.
284 void vout_LinkPicture( vout_thread_t *p_vout, picture_t *p_pic )
286 vlc_mutex_lock( &p_vout->picture_lock );
288 vlc_mutex_unlock( &p_vout->picture_lock );
292 * Decrement reference counter of a picture
294 * This function decrement the reference counter of a picture in the video heap
296 void vout_UnlinkPicture( vout_thread_t *p_vout, picture_t *p_pic )
298 vlc_mutex_lock( &p_vout->picture_lock );
300 if( p_pic->i_refcount > 0 )
303 msg_Err( p_vout, "Invalid picture reference count (%p, %d)",
304 p_pic, p_pic->i_refcount );
306 if( p_pic->i_refcount == 0 && p_pic->i_status == DISPLAYED_PICTURE )
307 DestroyPicture( p_vout, p_pic );
309 vlc_mutex_unlock( &p_vout->picture_lock );
312 static int vout_LockPicture( vout_thread_t *p_vout, picture_t *p_picture )
314 if( p_picture->pf_lock )
315 return p_picture->pf_lock( p_vout, p_picture );
318 static void vout_UnlockPicture( vout_thread_t *p_vout, picture_t *p_picture )
320 if( p_picture->pf_unlock )
321 p_picture->pf_unlock( p_vout, p_picture );
327 * This function chooses whether the current picture needs to be copied
328 * before rendering, does the subpicture magic, and tells the video output
329 * thread which direct buffer needs to be displayed.
331 picture_t *vout_RenderPicture( vout_thread_t *p_vout, picture_t *p_pic,
332 subpicture_t *p_subpic, bool b_paused )
337 if( p_pic->i_type == DIRECT_PICTURE )
339 /* Picture is in a direct buffer. */
341 if( p_subpic != NULL )
343 /* We have subtitles. First copy the picture to
344 * the spare direct buffer, then render the
346 if( vout_LockPicture( p_vout, PP_OUTPUTPICTURE[0] ) )
349 picture_Copy( PP_OUTPUTPICTURE[0], p_pic );
351 spu_RenderSubpictures( p_vout->p_spu,
352 PP_OUTPUTPICTURE[0], &p_vout->fmt_out,
353 p_subpic, &p_vout->fmt_in, b_paused );
355 vout_UnlockPicture( p_vout, PP_OUTPUTPICTURE[0] );
357 return PP_OUTPUTPICTURE[0];
360 /* No subtitles, picture is in a directbuffer so
361 * we can display it directly (even if it is still
366 /* Not a direct buffer. We either need to copy it to a direct buffer,
367 * or render it if the chroma isn't the same. */
368 if( p_vout->p->b_direct )
370 /* Picture is not in a direct buffer, but is exactly the
371 * same size as the direct buffers. A memcpy() is enough,
372 * then render the subtitles. */
374 if( vout_LockPicture( p_vout, PP_OUTPUTPICTURE[0] ) )
377 picture_Copy( PP_OUTPUTPICTURE[0], p_pic );
378 spu_RenderSubpictures( p_vout->p_spu,
379 PP_OUTPUTPICTURE[0], &p_vout->fmt_out,
380 p_subpic, &p_vout->fmt_in, b_paused );
382 vout_UnlockPicture( p_vout, PP_OUTPUTPICTURE[0] );
384 return PP_OUTPUTPICTURE[0];
387 /* Picture is not in a direct buffer, and needs to be converted to
388 * another size/chroma. Then the subtitles need to be rendered as
389 * well. This usually means software YUV, or hardware YUV with a
390 * different chroma. */
392 if( p_subpic != NULL && p_vout->p_picture[0].b_slow )
394 /* The picture buffer is in slow memory. We'll use
395 * the "2 * VOUT_MAX_PICTURES + 1" picture as a temporary
396 * one for subpictures rendering. */
397 picture_t *p_tmp_pic = &p_vout->p_picture[2 * VOUT_MAX_PICTURES];
398 if( p_tmp_pic->i_status == FREE_PICTURE )
400 vout_AllocatePicture( VLC_OBJECT(p_vout),
401 p_tmp_pic, p_vout->fmt_out.i_chroma,
402 p_vout->fmt_out.i_width,
403 p_vout->fmt_out.i_height,
404 p_vout->fmt_out.i_aspect );
405 p_tmp_pic->i_type = MEMORY_PICTURE;
406 p_tmp_pic->i_status = RESERVED_PICTURE;
407 /* some modules (such as blend) needs to know the extra information in picture heap */
408 p_tmp_pic->p_heap = &p_vout->output;
411 /* Convert image to the first direct buffer */
412 p_vout->p->p_chroma->p_owner = (filter_owner_sys_t *)p_tmp_pic;
413 p_vout->p->p_chroma->pf_video_filter( p_vout->p->p_chroma, p_pic );
415 /* Render subpictures on the first direct buffer */
416 spu_RenderSubpictures( p_vout->p_spu,
417 p_tmp_pic, &p_vout->fmt_out,
418 p_subpic, &p_vout->fmt_in, b_paused );
420 if( vout_LockPicture( p_vout, &p_vout->p_picture[0] ) )
423 picture_Copy( &p_vout->p_picture[0], p_tmp_pic );
427 if( vout_LockPicture( p_vout, &p_vout->p_picture[0] ) )
430 /* Convert image to the first direct buffer */
431 p_vout->p->p_chroma->p_owner = (filter_owner_sys_t *)&p_vout->p_picture[0];
432 p_vout->p->p_chroma->pf_video_filter( p_vout->p->p_chroma, p_pic );
434 /* Render subpictures on the first direct buffer */
435 spu_RenderSubpictures( p_vout->p_spu,
436 &p_vout->p_picture[0], &p_vout->fmt_out,
437 p_subpic, &p_vout->fmt_in, b_paused );
440 vout_UnlockPicture( p_vout, &p_vout->p_picture[0] );
442 return &p_vout->p_picture[0];
446 * Calculate image window coordinates
448 * This function will be accessed by plugins. It calculates the relative
449 * position of the output window and the image window.
451 void vout_PlacePicture( const vout_thread_t *p_vout,
452 unsigned int i_width, unsigned int i_height,
453 unsigned int *restrict pi_x,
454 unsigned int *restrict pi_y,
455 unsigned int *restrict pi_width,
456 unsigned int *restrict pi_height )
458 if( i_width <= 0 || i_height <= 0 )
460 *pi_width = *pi_height = *pi_x = *pi_y = 0;
464 if( p_vout->b_autoscale )
467 *pi_height = i_height;
471 int i_zoom = p_vout->i_zoom;
472 /* be realistic, scaling factor confined between .2 and 10. */
473 if( i_zoom > 10 * ZOOM_FP_FACTOR ) i_zoom = 10 * ZOOM_FP_FACTOR;
474 else if( i_zoom < ZOOM_FP_FACTOR / 5 ) i_zoom = ZOOM_FP_FACTOR / 5;
476 unsigned int i_original_width, i_original_height;
478 if( p_vout->fmt_in.i_sar_num >= p_vout->fmt_in.i_sar_den )
480 i_original_width = p_vout->fmt_in.i_visible_width *
481 p_vout->fmt_in.i_sar_num / p_vout->fmt_in.i_sar_den;
482 i_original_height = p_vout->fmt_in.i_visible_height;
486 i_original_width = p_vout->fmt_in.i_visible_width;
487 i_original_height = p_vout->fmt_in.i_visible_height *
488 p_vout->fmt_in.i_sar_den / p_vout->fmt_in.i_sar_num;
491 /* On windows, inner video window exceeding container leads to black screen */
492 *pi_width = __MIN( i_width, i_original_width * i_zoom / ZOOM_FP_FACTOR );
493 *pi_height = __MIN( i_height, i_original_height * i_zoom / ZOOM_FP_FACTOR );
495 *pi_width = i_original_width * i_zoom / ZOOM_FP_FACTOR ;
496 *pi_height = i_original_height * i_zoom / ZOOM_FP_FACTOR ;
500 int64_t i_scaled_width = p_vout->fmt_in.i_visible_width * (int64_t)p_vout->fmt_in.i_sar_num *
501 *pi_height / p_vout->fmt_in.i_visible_height / p_vout->fmt_in.i_sar_den;
502 int64_t i_scaled_height = p_vout->fmt_in.i_visible_height * (int64_t)p_vout->fmt_in.i_sar_den *
503 *pi_width / p_vout->fmt_in.i_visible_width / p_vout->fmt_in.i_sar_num;
505 if( i_scaled_width <= 0 || i_scaled_height <= 0 )
507 msg_Warn( p_vout, "ignoring broken aspect ratio" );
508 i_scaled_width = *pi_width;
509 i_scaled_height = *pi_height;
512 if( i_scaled_width > *pi_width )
513 *pi_height = i_scaled_height;
515 *pi_width = i_scaled_width;
517 switch( p_vout->i_alignment & VOUT_ALIGN_HMASK )
519 case VOUT_ALIGN_LEFT:
522 case VOUT_ALIGN_RIGHT:
523 *pi_x = i_width - *pi_width;
526 *pi_x = ( i_width - *pi_width ) / 2;
529 switch( p_vout->i_alignment & VOUT_ALIGN_VMASK )
534 case VOUT_ALIGN_BOTTOM:
535 *pi_y = i_height - *pi_height;
538 *pi_y = ( i_height - *pi_height ) / 2;
543 * Allocate a new picture in the heap.
545 * This function allocates a fake direct buffer in memory, which can be
546 * used exactly like a video buffer. The video output thread then manages
547 * how it gets displayed.
549 int __vout_AllocatePicture( vlc_object_t *p_this, picture_t *p_pic,
550 vlc_fourcc_t i_chroma,
551 int i_width, int i_height, int i_aspect )
553 int i_bytes, i_index, i_width_aligned, i_height_aligned;
555 /* Make sure the real dimensions are a multiple of 16 */
556 i_width_aligned = (i_width + 15) >> 4 << 4;
557 i_height_aligned = (i_height + 15) >> 4 << 4;
559 if( vout_InitPicture( p_this, p_pic, i_chroma,
560 i_width, i_height, i_aspect ) != VLC_SUCCESS )
566 /* Calculate how big the new image should be */
567 i_bytes = p_pic->format.i_bits_per_pixel *
568 i_width_aligned * i_height_aligned / 8;
570 p_pic->p_data = vlc_memalign( &p_pic->p_data_orig, 16, i_bytes );
572 if( p_pic->p_data == NULL )
578 /* Fill the p_pixels field for each plane */
579 p_pic->p[ 0 ].p_pixels = p_pic->p_data;
581 for( i_index = 1; i_index < p_pic->i_planes; i_index++ )
583 p_pic->p[i_index].p_pixels = p_pic->p[i_index-1].p_pixels +
584 p_pic->p[i_index-1].i_lines * p_pic->p[i_index-1].i_pitch;
591 * Initialise the video format fields given chroma/size.
593 * This function initializes all the video_frame_format_t fields given the
594 * static properties of a picture (chroma and size).
595 * \param p_format Pointer to the format structure to initialize
596 * \param i_chroma Chroma to set
597 * \param i_width Width to set
598 * \param i_height Height to set
599 * \param i_aspect Aspect ratio
601 void vout_InitFormat( video_frame_format_t *p_format, vlc_fourcc_t i_chroma,
602 int i_width, int i_height, int i_aspect )
604 p_format->i_chroma = i_chroma;
605 p_format->i_width = p_format->i_visible_width = i_width;
606 p_format->i_height = p_format->i_visible_height = i_height;
607 p_format->i_x_offset = p_format->i_y_offset = 0;
608 p_format->i_aspect = i_aspect;
611 /* Assume we have square pixels */
612 if( i_width && i_height )
613 p_format->i_aspect = i_width * VOUT_ASPECT_FACTOR / i_height;
615 p_format->i_aspect = 0;
621 p_format->i_bits_per_pixel = 32;
625 p_format->i_bits_per_pixel = 24;
631 p_format->i_bits_per_pixel = 16;
635 p_format->i_bits_per_pixel = 16;
642 p_format->i_bits_per_pixel = 12;
646 p_format->i_bits_per_pixel = 9;
649 p_format->i_bits_per_pixel = 8;
652 p_format->i_bits_per_pixel = 8;
657 p_format->i_bits_per_pixel = 32;
660 p_format->i_bits_per_pixel = 24;
664 p_format->i_bits_per_pixel = 16;
667 p_format->i_bits_per_pixel = 8;
674 p_format->i_bits_per_pixel = 8;
678 p_format->i_bits_per_pixel = 0;
684 * Initialise the picture_t fields given chroma/size.
686 * This function initializes most of the picture_t fields given a chroma and
687 * size. It makes the assumption that stride == width.
688 * \param p_this The calling object
689 * \param p_pic Pointer to the picture to initialize
690 * \param i_chroma The chroma fourcc to set
691 * \param i_width The width of the picture
692 * \param i_height The height of the picture
693 * \param i_aspect The aspect ratio of the picture
695 int __vout_InitPicture( vlc_object_t *p_this, picture_t *p_pic,
696 vlc_fourcc_t i_chroma,
697 int i_width, int i_height, int i_aspect )
699 int i_index, i_width_aligned, i_height_aligned;
701 /* Store default values */
702 for( i_index = 0; i_index < VOUT_MAX_PLANES; i_index++ )
704 p_pic->p[i_index].p_pixels = NULL;
705 p_pic->p[i_index].i_pixel_pitch = 1;
708 p_pic->pf_release = NULL;
709 p_pic->pf_lock = NULL;
710 p_pic->pf_unlock = NULL;
711 p_pic->i_refcount = 0;
713 p_pic->i_qtype = QTYPE_NONE;
714 p_pic->i_qstride = 0;
717 vout_InitFormat( &p_pic->format, i_chroma, i_width, i_height, i_aspect );
719 /* Make sure the real dimensions are a multiple of 16 */
720 i_width_aligned = (i_width + 15) >> 4 << 4;
721 i_height_aligned = (i_height + 15) >> 4 << 4;
723 /* Calculate coordinates */
727 p_pic->p[ Y_PLANE ].i_lines = i_height_aligned;
728 p_pic->p[ Y_PLANE ].i_visible_lines = i_height;
729 p_pic->p[ Y_PLANE ].i_pitch = i_width_aligned;
730 p_pic->p[ Y_PLANE ].i_visible_pitch = i_width;
731 p_pic->p[ U_PLANE ].i_lines = i_height_aligned;
732 p_pic->p[ U_PLANE ].i_visible_lines = i_height;
733 p_pic->p[ U_PLANE ].i_pitch = i_width_aligned / 4;
734 p_pic->p[ U_PLANE ].i_visible_pitch = i_width / 4;
735 p_pic->p[ V_PLANE ].i_lines = i_height_aligned;
736 p_pic->p[ V_PLANE ].i_visible_lines = i_height;
737 p_pic->p[ V_PLANE ].i_pitch = i_width_aligned / 4;
738 p_pic->p[ V_PLANE ].i_visible_pitch = i_width / 4;
744 p_pic->p[ Y_PLANE ].i_lines = i_height_aligned;
745 p_pic->p[ Y_PLANE ].i_visible_lines = i_height;
746 p_pic->p[ Y_PLANE ].i_pitch = i_width_aligned;
747 p_pic->p[ Y_PLANE ].i_visible_pitch = i_width;
748 p_pic->p[ U_PLANE ].i_lines = i_height_aligned / 4;
749 p_pic->p[ U_PLANE ].i_visible_lines = i_height / 4;
750 p_pic->p[ U_PLANE ].i_pitch = i_width_aligned / 4;
751 p_pic->p[ U_PLANE ].i_visible_pitch = i_width / 4;
752 p_pic->p[ V_PLANE ].i_lines = i_height_aligned / 4;
753 p_pic->p[ V_PLANE ].i_visible_lines = i_height / 4;
754 p_pic->p[ V_PLANE ].i_pitch = i_width_aligned / 4;
755 p_pic->p[ V_PLANE ].i_visible_pitch = i_width / 4;
763 p_pic->p[ Y_PLANE ].i_lines = i_height_aligned;
764 p_pic->p[ Y_PLANE ].i_visible_lines = i_height;
765 p_pic->p[ Y_PLANE ].i_pitch = i_width_aligned;
766 p_pic->p[ Y_PLANE ].i_visible_pitch = i_width;
767 p_pic->p[ U_PLANE ].i_lines = i_height_aligned / 2;
768 p_pic->p[ U_PLANE ].i_visible_lines = i_height / 2;
769 p_pic->p[ U_PLANE ].i_pitch = i_width_aligned / 2;
770 p_pic->p[ U_PLANE ].i_visible_pitch = i_width / 2;
771 p_pic->p[ V_PLANE ].i_lines = i_height_aligned / 2;
772 p_pic->p[ V_PLANE ].i_visible_lines = i_height / 2;
773 p_pic->p[ V_PLANE ].i_pitch = i_width_aligned / 2;
774 p_pic->p[ V_PLANE ].i_visible_pitch = i_width / 2;
780 p_pic->p[ Y_PLANE ].i_lines = i_height_aligned;
781 p_pic->p[ Y_PLANE ].i_visible_lines = i_height;
782 p_pic->p[ Y_PLANE ].i_pitch = i_width_aligned;
783 p_pic->p[ Y_PLANE ].i_visible_pitch = i_width;
784 p_pic->p[ U_PLANE ].i_lines = i_height_aligned;
785 p_pic->p[ U_PLANE ].i_visible_lines = i_height;
786 p_pic->p[ U_PLANE ].i_pitch = i_width_aligned / 2;
787 p_pic->p[ U_PLANE ].i_visible_pitch = i_width / 2;
788 p_pic->p[ V_PLANE ].i_lines = i_height_aligned;
789 p_pic->p[ V_PLANE ].i_visible_lines = i_height;
790 p_pic->p[ V_PLANE ].i_pitch = i_width_aligned / 2;
791 p_pic->p[ V_PLANE ].i_visible_pitch = i_width / 2;
797 p_pic->p[ Y_PLANE ].i_lines = i_height_aligned;
798 p_pic->p[ Y_PLANE ].i_visible_lines = i_height;
799 p_pic->p[ Y_PLANE ].i_pitch = i_width_aligned;
800 p_pic->p[ Y_PLANE ].i_visible_pitch = i_width;
801 p_pic->p[ U_PLANE ].i_lines = i_height_aligned / 2;
802 p_pic->p[ U_PLANE ].i_visible_lines = i_height / 2;
803 p_pic->p[ U_PLANE ].i_pitch = i_width_aligned;
804 p_pic->p[ U_PLANE ].i_visible_pitch = i_width;
805 p_pic->p[ V_PLANE ].i_lines = i_height_aligned / 2;
806 p_pic->p[ V_PLANE ].i_visible_lines = i_height / 2;
807 p_pic->p[ V_PLANE ].i_pitch = i_width_aligned;
808 p_pic->p[ V_PLANE ].i_visible_pitch = i_width;
814 p_pic->p[ Y_PLANE ].i_lines = i_height_aligned;
815 p_pic->p[ Y_PLANE ].i_visible_lines = i_height;
816 p_pic->p[ Y_PLANE ].i_pitch = i_width_aligned;
817 p_pic->p[ Y_PLANE ].i_visible_pitch = i_width;
818 p_pic->p[ U_PLANE ].i_lines = i_height_aligned;
819 p_pic->p[ U_PLANE ].i_visible_lines = i_height;
820 p_pic->p[ U_PLANE ].i_pitch = i_width_aligned;
821 p_pic->p[ U_PLANE ].i_visible_pitch = i_width;
822 p_pic->p[ V_PLANE ].i_lines = i_height_aligned;
823 p_pic->p[ V_PLANE ].i_visible_lines = i_height;
824 p_pic->p[ V_PLANE ].i_pitch = i_width_aligned;
825 p_pic->p[ V_PLANE ].i_visible_pitch = i_width;
830 p_pic->p[ Y_PLANE ].i_lines = i_height_aligned;
831 p_pic->p[ Y_PLANE ].i_visible_lines = i_height;
832 p_pic->p[ Y_PLANE ].i_pitch = i_width_aligned;
833 p_pic->p[ Y_PLANE ].i_visible_pitch = i_width;
834 p_pic->p[ U_PLANE ].i_lines = i_height_aligned;
835 p_pic->p[ U_PLANE ].i_visible_lines = i_height;
836 p_pic->p[ U_PLANE ].i_pitch = i_width_aligned;
837 p_pic->p[ U_PLANE ].i_visible_pitch = i_width;
838 p_pic->p[ V_PLANE ].i_lines = i_height_aligned;
839 p_pic->p[ V_PLANE ].i_visible_lines = i_height;
840 p_pic->p[ V_PLANE ].i_pitch = i_width_aligned;
841 p_pic->p[ V_PLANE ].i_visible_pitch = i_width;
842 p_pic->p[ A_PLANE ].i_lines = i_height_aligned;
843 p_pic->p[ A_PLANE ].i_visible_lines = i_height;
844 p_pic->p[ A_PLANE ].i_pitch = i_width_aligned;
845 p_pic->p[ A_PLANE ].i_visible_pitch = i_width;
850 p_pic->p->i_lines = i_height_aligned;
851 p_pic->p->i_visible_lines = i_height;
852 p_pic->p->i_pitch = i_width_aligned;
853 p_pic->p->i_visible_pitch = i_width;
854 p_pic->p->i_pixel_pitch = 8;
859 p_pic->p->i_lines = i_height_aligned;
860 p_pic->p->i_visible_lines = i_height;
861 p_pic->p->i_pitch = i_width_aligned;
862 p_pic->p->i_visible_pitch = i_width;
863 p_pic->p->i_pixel_pitch = 4;
869 p_pic->p->i_lines = i_height_aligned;
870 p_pic->p->i_visible_lines = i_height;
871 p_pic->p->i_pitch = i_width_aligned * 2;
872 p_pic->p->i_visible_pitch = i_width * 2;
873 p_pic->p->i_pixel_pitch = 4;
878 p_pic->p->i_lines = i_height_aligned;
879 p_pic->p->i_visible_lines = i_height;
880 p_pic->p->i_pitch = i_width_aligned;
881 p_pic->p->i_visible_pitch = i_width;
882 p_pic->p->i_pixel_pitch = 1;
887 p_pic->p->i_lines = i_height_aligned;
888 p_pic->p->i_visible_lines = i_height;
889 p_pic->p->i_pitch = i_width_aligned * 2;
890 p_pic->p->i_visible_pitch = i_width * 2;
891 p_pic->p->i_pixel_pitch = 2;
896 p_pic->p->i_lines = i_height_aligned;
897 p_pic->p->i_visible_lines = i_height;
898 p_pic->p->i_pitch = i_width_aligned * 2;
899 p_pic->p->i_visible_pitch = i_width * 2;
900 p_pic->p->i_pixel_pitch = 2;
905 p_pic->p->i_lines = i_height_aligned;
906 p_pic->p->i_visible_lines = i_height;
907 p_pic->p->i_pitch = i_width_aligned * 3;
908 p_pic->p->i_visible_pitch = i_width * 3;
909 p_pic->p->i_pixel_pitch = 3;
915 p_pic->p->i_lines = i_height_aligned;
916 p_pic->p->i_visible_lines = i_height;
917 p_pic->p->i_pitch = i_width_aligned * 4;
918 p_pic->p->i_visible_pitch = i_width * 4;
919 p_pic->p->i_pixel_pitch = 4;
927 p_pic->p->i_lines = i_height_aligned;
928 p_pic->p->i_visible_lines = i_height;
929 p_pic->p->i_pitch = i_width_aligned;
930 p_pic->p->i_visible_pitch = i_width;
931 p_pic->p->i_pixel_pitch = 1;
937 msg_Err( p_this, "unknown chroma type 0x%.8x (%4.4s)",
938 i_chroma, (char*)&i_chroma );
947 * Compare two chroma values
949 * This function returns 1 if the two fourcc values given as argument are
950 * the same format (eg. UYVY/UYNV) or almost the same format (eg. I420/YV12)
952 int vout_ChromaCmp( vlc_fourcc_t i_chroma, vlc_fourcc_t i_amorhc )
954 /* If they are the same, they are the same ! */
955 if( i_chroma == i_amorhc )
960 /* Check for equivalence classes */
1022 /*****************************************************************************
1024 *****************************************************************************/
1025 static void PictureReleaseCallback( picture_t *p_picture )
1027 if( --p_picture->i_refcount > 0 )
1029 picture_Delete( p_picture );
1031 /*****************************************************************************
1033 *****************************************************************************/
1034 picture_t *picture_New( vlc_fourcc_t i_chroma, int i_width, int i_height, int i_aspect )
1036 picture_t *p_picture = calloc( 1, sizeof(*p_picture) );
1040 if( __vout_AllocatePicture( NULL, p_picture,
1041 i_chroma, i_width, i_height, i_aspect ) )
1047 p_picture->i_refcount = 1;
1048 p_picture->pf_release = PictureReleaseCallback;
1049 p_picture->i_status = RESERVED_PICTURE;
1054 /*****************************************************************************
1056 *****************************************************************************/
1057 void picture_Delete( picture_t *p_picture )
1059 assert( p_picture && p_picture->i_refcount == 0 );
1061 free( p_picture->p_q );
1062 free( p_picture->p_data_orig );
1063 free( p_picture->p_sys );
1067 /*****************************************************************************
1069 *****************************************************************************/
1070 void picture_CopyPixels( picture_t *p_dst, const picture_t *p_src )
1074 for( i = 0; i < p_src->i_planes ; i++ )
1075 plane_CopyPixels( p_dst->p+i, p_src->p+i );
1078 void plane_CopyPixels( plane_t *p_dst, const plane_t *p_src )
1080 const unsigned i_width = __MIN( p_dst->i_visible_pitch,
1081 p_src->i_visible_pitch );
1082 const unsigned i_height = __MIN( p_dst->i_visible_lines,
1083 p_src->i_visible_lines );
1085 if( p_src->i_pitch == p_dst->i_pitch )
1087 /* There are margins, but with the same width : perfect ! */
1088 vlc_memcpy( p_dst->p_pixels, p_src->p_pixels,
1089 p_src->i_pitch * i_height );
1093 /* We need to proceed line by line */
1094 uint8_t *p_in = p_src->p_pixels;
1095 uint8_t *p_out = p_dst->p_pixels;
1101 for( i_line = i_height; i_line--; )
1103 vlc_memcpy( p_out, p_in, i_width );
1104 p_in += p_src->i_pitch;
1105 p_out += p_dst->i_pitch;
1110 /*****************************************************************************
1112 *****************************************************************************/