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 *****************************************************************************/
33 #include <vlc_common.h>
36 #include <vlc_filter.h>
37 #include "vout_pictures.h"
44 * Remove the reservation flag of a picture, which will cause it to be ready
45 * for display. The picture won't be displayed until vout_DatePicture has been
48 void vout_DisplayPicture( vout_thread_t *p_vout, picture_t *p_pic )
50 vlc_mutex_lock( &p_vout->picture_lock );
51 switch( p_pic->i_status )
53 case RESERVED_PICTURE:
54 p_pic->i_status = RESERVED_DISP_PICTURE;
56 case RESERVED_DATED_PICTURE:
57 p_pic->i_status = READY_PICTURE;
60 msg_Err( p_vout, "picture to display %p has invalid status %d",
61 p_pic, p_pic->i_status );
65 vlc_mutex_unlock( &p_vout->picture_lock );
71 * Remove the reservation flag of a picture, which will cause it to be ready
72 * for display. The picture won't be displayed until vout_DisplayPicture has
74 * \param p_vout The vout in question
75 * \param p_pic The picture to date
76 * \param date The date to display the picture
78 void vout_DatePicture( vout_thread_t *p_vout,
79 picture_t *p_pic, mtime_t date )
81 vlc_mutex_lock( &p_vout->picture_lock );
83 switch( p_pic->i_status )
85 case RESERVED_PICTURE:
86 p_pic->i_status = RESERVED_DATED_PICTURE;
88 case RESERVED_DISP_PICTURE:
89 p_pic->i_status = READY_PICTURE;
92 msg_Err( p_vout, "picture to date %p has invalid status %d",
93 p_pic, p_pic->i_status );
97 vlc_mutex_unlock( &p_vout->picture_lock );
101 * Allocate a picture in the video output heap.
103 * This function creates a reserved image in the video output heap.
104 * A null pointer is returned if the function fails. This method provides an
105 * already allocated zone of memory in the picture data fields.
106 * It needs locking since several pictures can be created by several producers
109 int vout_CountPictureAvailable( vout_thread_t *p_vout )
114 vlc_mutex_lock( &p_vout->picture_lock );
115 for( i_pic = 0; i_pic < I_RENDERPICTURES; i_pic++ )
117 picture_t *p_pic = PP_RENDERPICTURE[(p_vout->render.i_last_used_pic + i_pic + 1) % I_RENDERPICTURES];
119 switch( p_pic->i_status )
121 case DESTROYED_PICTURE:
133 vlc_mutex_unlock( &p_vout->picture_lock );
138 picture_t *vout_CreatePicture( vout_thread_t *p_vout,
140 bool b_top_field_first,
141 unsigned int i_nb_fields )
143 int i_pic; /* picture index */
145 picture_t * p_freepic = NULL; /* first free picture */
148 vlc_mutex_lock( &p_vout->picture_lock );
151 * Look for an empty place in the picture heap.
153 for( i_pic = 0; i_pic < I_RENDERPICTURES; i_pic++ )
155 p_pic = PP_RENDERPICTURE[(p_vout->render.i_last_used_pic + i_pic + 1)
158 switch( p_pic->i_status )
160 case DESTROYED_PICTURE:
161 /* Memory will not be reallocated, and function can end
162 * immediately - this is the best possible case, since no
163 * memory allocation needs to be done */
164 p_pic->i_status = RESERVED_PICTURE;
165 p_pic->i_refcount = 0;
168 p_pic->b_progressive = b_progressive;
169 p_pic->i_nb_fields = i_nb_fields;
170 p_pic->b_top_field_first = b_top_field_first;
172 p_vout->i_heap_size++;
173 p_vout->render.i_last_used_pic =
174 ( p_vout->render.i_last_used_pic + i_pic + 1 )
176 vlc_mutex_unlock( &p_vout->picture_lock );
180 /* Picture is empty and ready for allocation */
181 p_vout->render.i_last_used_pic =
182 ( p_vout->render.i_last_used_pic + i_pic + 1 )
195 if( p_freepic != NULL )
197 vout_AllocatePicture( VLC_OBJECT(p_vout),
198 p_freepic, p_vout->render.i_chroma,
199 p_vout->render.i_width, p_vout->render.i_height,
200 p_vout->render.i_aspect );
202 if( p_freepic->i_planes )
204 /* Copy picture information, set some default values */
205 p_freepic->i_status = RESERVED_PICTURE;
206 p_freepic->i_type = MEMORY_PICTURE;
207 p_freepic->b_slow = 0;
209 p_freepic->i_refcount = 0;
210 p_freepic->b_force = 0;
212 p_freepic->b_progressive = b_progressive;
213 p_freepic->i_nb_fields = i_nb_fields;
214 p_freepic->b_top_field_first = b_top_field_first;
216 p_freepic->i_matrix_coefficients = 1;
218 p_vout->i_heap_size++;
222 /* Memory allocation failed : set picture as empty */
223 p_freepic->i_status = FREE_PICTURE;
226 msg_Err( p_vout, "picture allocation failed" );
229 vlc_mutex_unlock( &p_vout->picture_lock );
234 /* No free or destroyed picture could be found, but the decoder
235 * will try again in a while. */
236 vlc_mutex_unlock( &p_vout->picture_lock );
242 * Remove a permanent or reserved picture from the heap
244 * This function frees a previously reserved picture or a permanent
245 * picture. It is meant to be used when the construction of a picture aborted.
246 * Note that the picture will be destroyed even if it is linked !
248 void vout_DestroyPicture( vout_thread_t *p_vout, picture_t *p_pic )
250 vlc_mutex_lock( &p_vout->picture_lock );
253 /* Check if picture status is valid */
254 if( (p_pic->i_status != RESERVED_PICTURE) &&
255 (p_pic->i_status != RESERVED_DATED_PICTURE) &&
256 (p_pic->i_status != RESERVED_DISP_PICTURE) )
258 msg_Err( p_vout, "picture to destroy %p has invalid status %d",
259 p_pic, p_pic->i_status );
263 p_pic->i_status = DESTROYED_PICTURE;
264 p_vout->i_heap_size--;
265 picture_CleanupQuant( p_pic );
267 vlc_mutex_unlock( &p_vout->picture_lock );
271 * Increment reference counter of a picture
273 * This function increments the reference counter of a picture in the video
274 * heap. It needs a lock since several producer threads can access the picture.
276 void vout_LinkPicture( vout_thread_t *p_vout, picture_t *p_pic )
278 vlc_mutex_lock( &p_vout->picture_lock );
280 vlc_mutex_unlock( &p_vout->picture_lock );
284 * Decrement reference counter of a picture
286 * This function decrement the reference counter of a picture in the video heap
288 void vout_UnlinkPicture( vout_thread_t *p_vout, picture_t *p_pic )
290 vlc_mutex_lock( &p_vout->picture_lock );
293 if( ( p_pic->i_refcount == 0 ) &&
294 ( p_pic->i_status == DISPLAYED_PICTURE ) )
296 p_pic->i_status = DESTROYED_PICTURE;
297 p_vout->i_heap_size--;
298 picture_CleanupQuant( p_pic );
301 vlc_mutex_unlock( &p_vout->picture_lock );
304 static int vout_LockPicture( vout_thread_t *p_vout, picture_t *p_picture )
306 if( p_picture->pf_lock )
307 return p_picture->pf_lock( p_vout, p_picture );
310 static void vout_UnlockPicture( vout_thread_t *p_vout, picture_t *p_picture )
312 if( p_picture->pf_unlock )
313 p_picture->pf_unlock( p_vout, p_picture );
319 * This function chooses whether the current picture needs to be copied
320 * before rendering, does the subpicture magic, and tells the video output
321 * thread which direct buffer needs to be displayed.
323 picture_t * vout_RenderPicture( vout_thread_t *p_vout, picture_t *p_pic,
324 subpicture_t *p_subpic )
326 int i_scale_width, i_scale_height;
334 i_scale_width = p_vout->fmt_out.i_visible_width * 1000 /
335 p_vout->fmt_in.i_visible_width;
336 i_scale_height = p_vout->fmt_out.i_visible_height * 1000 /
337 p_vout->fmt_in.i_visible_height;
339 if( p_pic->i_type == DIRECT_PICTURE )
341 /* Picture is in a direct buffer. */
343 if( p_subpic != NULL )
345 /* We have subtitles. First copy the picture to
346 * the spare direct buffer, then render the
348 if( vout_LockPicture( p_vout, PP_OUTPUTPICTURE[0] ) )
351 vout_CopyPicture( p_vout, PP_OUTPUTPICTURE[0], p_pic );
353 spu_RenderSubpictures( p_vout->p_spu, &p_vout->fmt_out,
354 PP_OUTPUTPICTURE[0], p_pic, p_subpic,
355 i_scale_width, i_scale_height );
357 vout_UnlockPicture( p_vout, PP_OUTPUTPICTURE[0] );
359 return PP_OUTPUTPICTURE[0];
362 /* No subtitles, picture is in a directbuffer so
363 * we can display it directly (even if it is still
368 /* Not a direct buffer. We either need to copy it to a direct buffer,
369 * or render it if the chroma isn't the same. */
370 if( p_vout->b_direct )
372 /* Picture is not in a direct buffer, but is exactly the
373 * same size as the direct buffers. A memcpy() is enough,
374 * then render the subtitles. */
376 if( vout_LockPicture( p_vout, PP_OUTPUTPICTURE[0] ) )
379 vout_CopyPicture( p_vout, PP_OUTPUTPICTURE[0], p_pic );
380 spu_RenderSubpictures( p_vout->p_spu, &p_vout->fmt_out,
381 PP_OUTPUTPICTURE[0], p_pic,
382 p_subpic, i_scale_width, i_scale_height );
384 vout_UnlockPicture( p_vout, PP_OUTPUTPICTURE[0] );
386 return PP_OUTPUTPICTURE[0];
389 /* Picture is not in a direct buffer, and needs to be converted to
390 * another size/chroma. Then the subtitles need to be rendered as
391 * well. This usually means software YUV, or hardware YUV with a
392 * different chroma. */
394 if( p_subpic != NULL && p_vout->p_picture[0].b_slow )
396 /* The picture buffer is in slow memory. We'll use
397 * the "2 * VOUT_MAX_PICTURES + 1" picture as a temporary
398 * one for subpictures rendering. */
399 picture_t *p_tmp_pic = &p_vout->p_picture[2 * VOUT_MAX_PICTURES];
400 if( p_tmp_pic->i_status == FREE_PICTURE )
402 vout_AllocatePicture( VLC_OBJECT(p_vout),
403 p_tmp_pic, p_vout->fmt_out.i_chroma,
404 p_vout->fmt_out.i_width,
405 p_vout->fmt_out.i_height,
406 p_vout->fmt_out.i_aspect );
407 p_tmp_pic->i_type = MEMORY_PICTURE;
408 p_tmp_pic->i_status = RESERVED_PICTURE;
409 /* some modules (such as blend) needs to know the extra information in picture heap */
410 p_tmp_pic->p_heap = &p_vout->output;
413 /* Convert image to the first direct buffer */
414 p_vout->p_chroma->p_owner = (filter_owner_sys_t *)p_tmp_pic;
415 p_vout->p_chroma->pf_video_filter( p_vout->p_chroma, p_pic );
417 /* Render subpictures on the first direct buffer */
418 spu_RenderSubpictures( p_vout->p_spu, &p_vout->fmt_out, p_tmp_pic,
420 i_scale_width, i_scale_height );
422 if( vout_LockPicture( p_vout, &p_vout->p_picture[0] ) )
425 vout_CopyPicture( p_vout, &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_chroma->p_owner = (filter_owner_sys_t *)&p_vout->p_picture[0];
434 p_vout->p_chroma->pf_video_filter( p_vout->p_chroma, p_pic );
436 /* Render subpictures on the first direct buffer */
437 spu_RenderSubpictures( p_vout->p_spu, &p_vout->fmt_out,
438 &p_vout->p_picture[0], &p_vout->p_picture[0],
439 p_subpic, i_scale_width, i_scale_height );
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( vout_thread_t *p_vout,
454 unsigned int i_width, unsigned int i_height,
455 unsigned int *pi_x, unsigned int *pi_y,
456 unsigned int *pi_width, unsigned int *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_scale )
467 *pi_height = i_height;
471 *pi_width = __MIN( i_width, p_vout->fmt_in.i_visible_width );
472 *pi_height = __MIN( i_height, p_vout->fmt_in.i_visible_height );
475 int64_t i_scaled_width = p_vout->fmt_in.i_visible_width * (int64_t)p_vout->fmt_in.i_sar_num *
476 *pi_height / p_vout->fmt_in.i_visible_height / p_vout->fmt_in.i_sar_den;
477 int64_t i_scaled_height = p_vout->fmt_in.i_visible_height * (int64_t)p_vout->fmt_in.i_sar_den *
478 *pi_width / p_vout->fmt_in.i_visible_width / p_vout->fmt_in.i_sar_num;
480 if( i_scaled_width <= 0 || i_scaled_height <= 0 )
482 msg_Warn( p_vout, "ignoring broken aspect ratio" );
483 i_scaled_width = *pi_width;
484 i_scaled_height = *pi_height;
487 if( i_scaled_width > *pi_width )
488 *pi_height = i_scaled_height;
490 *pi_width = i_scaled_width;
492 switch( p_vout->i_alignment & VOUT_ALIGN_HMASK )
494 case VOUT_ALIGN_LEFT:
497 case VOUT_ALIGN_RIGHT:
498 *pi_x = i_width - *pi_width;
501 *pi_x = ( i_width - *pi_width ) / 2;
504 switch( p_vout->i_alignment & VOUT_ALIGN_VMASK )
509 case VOUT_ALIGN_BOTTOM:
510 *pi_y = i_height - *pi_height;
513 *pi_y = ( i_height - *pi_height ) / 2;
518 * Allocate a new picture in the heap.
520 * This function allocates a fake direct buffer in memory, which can be
521 * used exactly like a video buffer. The video output thread then manages
522 * how it gets displayed.
524 int __vout_AllocatePicture( vlc_object_t *p_this, picture_t *p_pic,
525 vlc_fourcc_t i_chroma,
526 int i_width, int i_height, int i_aspect )
528 int i_bytes, i_index, i_width_aligned, i_height_aligned;
530 /* Make sure the real dimensions are a multiple of 16 */
531 i_width_aligned = (i_width + 15) >> 4 << 4;
532 i_height_aligned = (i_height + 15) >> 4 << 4;
534 if( vout_InitPicture( p_this, p_pic, i_chroma,
535 i_width, i_height, i_aspect ) != VLC_SUCCESS )
541 /* Calculate how big the new image should be */
542 i_bytes = p_pic->format.i_bits_per_pixel *
543 i_width_aligned * i_height_aligned / 8;
545 p_pic->p_data = vlc_memalign( &p_pic->p_data_orig, 16, i_bytes );
547 if( p_pic->p_data == NULL )
553 /* Fill the p_pixels field for each plane */
554 p_pic->p[ 0 ].p_pixels = p_pic->p_data;
556 for( i_index = 1; i_index < p_pic->i_planes; i_index++ )
558 p_pic->p[i_index].p_pixels = p_pic->p[i_index-1].p_pixels +
559 p_pic->p[i_index-1].i_lines * p_pic->p[i_index-1].i_pitch;
566 * Initialise the video format fields given chroma/size.
568 * This function initializes all the video_frame_format_t fields given the
569 * static properties of a picture (chroma and size).
570 * \param p_format Pointer to the format structure to initialize
571 * \param i_chroma Chroma to set
572 * \param i_width Width to set
573 * \param i_height Height to set
574 * \param i_aspect Aspect ratio
576 void vout_InitFormat( video_frame_format_t *p_format, vlc_fourcc_t i_chroma,
577 int i_width, int i_height, int i_aspect )
579 p_format->i_chroma = i_chroma;
580 p_format->i_width = p_format->i_visible_width = i_width;
581 p_format->i_height = p_format->i_visible_height = i_height;
582 p_format->i_x_offset = p_format->i_y_offset = 0;
583 p_format->i_aspect = i_aspect;
586 /* Assume we have square pixels */
587 if( i_width && i_height )
588 p_format->i_aspect = i_width * VOUT_ASPECT_FACTOR / i_height;
590 p_format->i_aspect = 0;
596 p_format->i_bits_per_pixel = 32;
600 p_format->i_bits_per_pixel = 24;
606 p_format->i_bits_per_pixel = 16;
610 p_format->i_bits_per_pixel = 16;
617 p_format->i_bits_per_pixel = 12;
621 p_format->i_bits_per_pixel = 9;
624 p_format->i_bits_per_pixel = 8;
627 p_format->i_bits_per_pixel = 8;
632 p_format->i_bits_per_pixel = 32;
635 p_format->i_bits_per_pixel = 24;
639 p_format->i_bits_per_pixel = 16;
642 p_format->i_bits_per_pixel = 8;
648 p_format->i_bits_per_pixel = 8;
652 p_format->i_bits_per_pixel = 0;
658 * Initialise the picture_t fields given chroma/size.
660 * This function initializes most of the picture_t fields given a chroma and
661 * size. It makes the assumption that stride == width.
662 * \param p_this The calling object
663 * \param p_pic Pointer to the picture to initialize
664 * \param i_chroma The chroma fourcc to set
665 * \param i_width The width of the picture
666 * \param i_height The height of the picture
667 * \param i_aspect The aspect ratio of the picture
669 int __vout_InitPicture( vlc_object_t *p_this, picture_t *p_pic,
670 vlc_fourcc_t i_chroma,
671 int i_width, int i_height, int i_aspect )
673 int i_index, i_width_aligned, i_height_aligned;
675 /* Store default values */
676 for( i_index = 0; i_index < VOUT_MAX_PLANES; i_index++ )
678 p_pic->p[i_index].p_pixels = NULL;
679 p_pic->p[i_index].i_pixel_pitch = 1;
682 p_pic->pf_release = NULL;
683 p_pic->pf_lock = NULL;
684 p_pic->pf_unlock = NULL;
685 p_pic->i_refcount = 0;
688 p_pic->i_qstride = 0;
691 vout_InitFormat( &p_pic->format, i_chroma, i_width, i_height, i_aspect );
693 /* Make sure the real dimensions are a multiple of 16 */
694 i_width_aligned = (i_width + 15) >> 4 << 4;
695 i_height_aligned = (i_height + 15) >> 4 << 4;
697 /* Calculate coordinates */
701 p_pic->p[ Y_PLANE ].i_lines = i_height_aligned;
702 p_pic->p[ Y_PLANE ].i_visible_lines = i_height;
703 p_pic->p[ Y_PLANE ].i_pitch = i_width_aligned;
704 p_pic->p[ Y_PLANE ].i_visible_pitch = i_width;
705 p_pic->p[ U_PLANE ].i_lines = i_height_aligned;
706 p_pic->p[ U_PLANE ].i_visible_lines = i_height;
707 p_pic->p[ U_PLANE ].i_pitch = i_width_aligned / 4;
708 p_pic->p[ U_PLANE ].i_visible_pitch = i_width / 4;
709 p_pic->p[ V_PLANE ].i_lines = i_height_aligned;
710 p_pic->p[ V_PLANE ].i_visible_lines = i_height;
711 p_pic->p[ V_PLANE ].i_pitch = i_width_aligned / 4;
712 p_pic->p[ V_PLANE ].i_visible_pitch = i_width / 4;
718 p_pic->p[ Y_PLANE ].i_lines = i_height_aligned;
719 p_pic->p[ Y_PLANE ].i_visible_lines = i_height;
720 p_pic->p[ Y_PLANE ].i_pitch = i_width_aligned;
721 p_pic->p[ Y_PLANE ].i_visible_pitch = i_width;
722 p_pic->p[ U_PLANE ].i_lines = i_height_aligned / 4;
723 p_pic->p[ U_PLANE ].i_visible_lines = i_height / 4;
724 p_pic->p[ U_PLANE ].i_pitch = i_width_aligned / 4;
725 p_pic->p[ U_PLANE ].i_visible_pitch = i_width / 4;
726 p_pic->p[ V_PLANE ].i_lines = i_height_aligned / 4;
727 p_pic->p[ V_PLANE ].i_visible_lines = i_height / 4;
728 p_pic->p[ V_PLANE ].i_pitch = i_width_aligned / 4;
729 p_pic->p[ V_PLANE ].i_visible_pitch = i_width / 4;
737 p_pic->p[ Y_PLANE ].i_lines = i_height_aligned;
738 p_pic->p[ Y_PLANE ].i_visible_lines = i_height;
739 p_pic->p[ Y_PLANE ].i_pitch = i_width_aligned;
740 p_pic->p[ Y_PLANE ].i_visible_pitch = i_width;
741 p_pic->p[ U_PLANE ].i_lines = i_height_aligned / 2;
742 p_pic->p[ U_PLANE ].i_visible_lines = i_height / 2;
743 p_pic->p[ U_PLANE ].i_pitch = i_width_aligned / 2;
744 p_pic->p[ U_PLANE ].i_visible_pitch = i_width / 2;
745 p_pic->p[ V_PLANE ].i_lines = i_height_aligned / 2;
746 p_pic->p[ V_PLANE ].i_visible_lines = i_height / 2;
747 p_pic->p[ V_PLANE ].i_pitch = i_width_aligned / 2;
748 p_pic->p[ V_PLANE ].i_visible_pitch = i_width / 2;
754 p_pic->p[ Y_PLANE ].i_lines = i_height_aligned;
755 p_pic->p[ Y_PLANE ].i_visible_lines = i_height;
756 p_pic->p[ Y_PLANE ].i_pitch = i_width_aligned;
757 p_pic->p[ Y_PLANE ].i_visible_pitch = i_width;
758 p_pic->p[ U_PLANE ].i_lines = i_height_aligned;
759 p_pic->p[ U_PLANE ].i_visible_lines = i_height;
760 p_pic->p[ U_PLANE ].i_pitch = i_width_aligned / 2;
761 p_pic->p[ U_PLANE ].i_visible_pitch = i_width / 2;
762 p_pic->p[ V_PLANE ].i_lines = i_height_aligned;
763 p_pic->p[ V_PLANE ].i_visible_lines = i_height;
764 p_pic->p[ V_PLANE ].i_pitch = i_width_aligned / 2;
765 p_pic->p[ V_PLANE ].i_visible_pitch = i_width / 2;
771 p_pic->p[ Y_PLANE ].i_lines = i_height_aligned;
772 p_pic->p[ Y_PLANE ].i_visible_lines = i_height;
773 p_pic->p[ Y_PLANE ].i_pitch = i_width_aligned;
774 p_pic->p[ Y_PLANE ].i_visible_pitch = i_width;
775 p_pic->p[ U_PLANE ].i_lines = i_height_aligned / 2;
776 p_pic->p[ U_PLANE ].i_visible_lines = i_height / 2;
777 p_pic->p[ U_PLANE ].i_pitch = i_width_aligned;
778 p_pic->p[ U_PLANE ].i_visible_pitch = i_width;
779 p_pic->p[ V_PLANE ].i_lines = i_height_aligned / 2;
780 p_pic->p[ V_PLANE ].i_visible_lines = i_height / 2;
781 p_pic->p[ V_PLANE ].i_pitch = i_width_aligned;
782 p_pic->p[ V_PLANE ].i_visible_pitch = i_width;
788 p_pic->p[ Y_PLANE ].i_lines = i_height_aligned;
789 p_pic->p[ Y_PLANE ].i_visible_lines = i_height;
790 p_pic->p[ Y_PLANE ].i_pitch = i_width_aligned;
791 p_pic->p[ Y_PLANE ].i_visible_pitch = i_width;
792 p_pic->p[ U_PLANE ].i_lines = i_height_aligned;
793 p_pic->p[ U_PLANE ].i_visible_lines = i_height;
794 p_pic->p[ U_PLANE ].i_pitch = i_width_aligned;
795 p_pic->p[ U_PLANE ].i_visible_pitch = i_width;
796 p_pic->p[ V_PLANE ].i_lines = i_height_aligned;
797 p_pic->p[ V_PLANE ].i_visible_lines = i_height;
798 p_pic->p[ V_PLANE ].i_pitch = i_width_aligned;
799 p_pic->p[ V_PLANE ].i_visible_pitch = i_width;
804 p_pic->p[ Y_PLANE ].i_lines = i_height_aligned;
805 p_pic->p[ Y_PLANE ].i_visible_lines = i_height;
806 p_pic->p[ Y_PLANE ].i_pitch = i_width_aligned;
807 p_pic->p[ Y_PLANE ].i_visible_pitch = i_width;
808 p_pic->p[ U_PLANE ].i_lines = i_height_aligned;
809 p_pic->p[ U_PLANE ].i_visible_lines = i_height;
810 p_pic->p[ U_PLANE ].i_pitch = i_width_aligned;
811 p_pic->p[ U_PLANE ].i_visible_pitch = i_width;
812 p_pic->p[ V_PLANE ].i_lines = i_height_aligned;
813 p_pic->p[ V_PLANE ].i_visible_lines = i_height;
814 p_pic->p[ V_PLANE ].i_pitch = i_width_aligned;
815 p_pic->p[ V_PLANE ].i_visible_pitch = i_width;
816 p_pic->p[ A_PLANE ].i_lines = i_height_aligned;
817 p_pic->p[ A_PLANE ].i_visible_lines = i_height;
818 p_pic->p[ A_PLANE ].i_pitch = i_width_aligned;
819 p_pic->p[ A_PLANE ].i_visible_pitch = i_width;
824 p_pic->p->i_lines = i_height_aligned;
825 p_pic->p->i_visible_lines = i_height;
826 p_pic->p->i_pitch = i_width_aligned;
827 p_pic->p->i_visible_pitch = i_width;
828 p_pic->p->i_pixel_pitch = 8;
833 p_pic->p->i_lines = i_height_aligned;
834 p_pic->p->i_visible_lines = i_height;
835 p_pic->p->i_pitch = i_width_aligned;
836 p_pic->p->i_visible_pitch = i_width;
837 p_pic->p->i_pixel_pitch = 4;
843 p_pic->p->i_lines = i_height_aligned;
844 p_pic->p->i_visible_lines = i_height;
845 p_pic->p->i_pitch = i_width_aligned * 2;
846 p_pic->p->i_visible_pitch = i_width * 2;
847 p_pic->p->i_pixel_pitch = 4;
852 p_pic->p->i_lines = i_height_aligned;
853 p_pic->p->i_visible_lines = i_height;
854 p_pic->p->i_pitch = i_width_aligned;
855 p_pic->p->i_visible_pitch = i_width;
856 p_pic->p->i_pixel_pitch = 1;
861 p_pic->p->i_lines = i_height_aligned;
862 p_pic->p->i_visible_lines = i_height;
863 p_pic->p->i_pitch = i_width_aligned * 2;
864 p_pic->p->i_visible_pitch = i_width * 2;
865 p_pic->p->i_pixel_pitch = 2;
870 p_pic->p->i_lines = i_height_aligned;
871 p_pic->p->i_visible_lines = i_height;
872 p_pic->p->i_pitch = i_width_aligned * 2;
873 p_pic->p->i_visible_pitch = i_width * 2;
874 p_pic->p->i_pixel_pitch = 2;
879 p_pic->p->i_lines = i_height_aligned;
880 p_pic->p->i_visible_lines = i_height;
881 p_pic->p->i_pitch = i_width_aligned * 3;
882 p_pic->p->i_visible_pitch = i_width * 3;
883 p_pic->p->i_pixel_pitch = 3;
889 p_pic->p->i_lines = i_height_aligned;
890 p_pic->p->i_visible_lines = i_height;
891 p_pic->p->i_pitch = i_width_aligned * 4;
892 p_pic->p->i_visible_pitch = i_width * 4;
893 p_pic->p->i_pixel_pitch = 4;
900 p_pic->p->i_lines = i_height_aligned;
901 p_pic->p->i_visible_lines = i_height;
902 p_pic->p->i_pitch = i_width_aligned;
903 p_pic->p->i_visible_pitch = i_width;
904 p_pic->p->i_pixel_pitch = 1;
910 msg_Err( p_this, "unknown chroma type 0x%.8x (%4.4s)",
911 i_chroma, (char*)&i_chroma );
920 * Compare two chroma values
922 * This function returns 1 if the two fourcc values given as argument are
923 * the same format (eg. UYVY/UYNV) or almost the same format (eg. I420/YV12)
925 int vout_ChromaCmp( vlc_fourcc_t i_chroma, vlc_fourcc_t i_amorhc )
927 /* If they are the same, they are the same ! */
928 if( i_chroma == i_amorhc )
933 /* Check for equivalence classes */
995 /*****************************************************************************
996 * vout_CopyPicture: copy a picture to another one
997 *****************************************************************************
998 * This function takes advantage of the image format, and reduces the
999 * number of calls to memcpy() to the minimum. Source and destination
1000 * images must have same width (hence i_visible_pitch), height, and chroma.
1001 *****************************************************************************/
1002 void __vout_CopyPicture( vlc_object_t *p_this,
1003 picture_t *p_dest, picture_t *p_src )
1006 picture_Copy( p_dest, p_src );
1009 /*****************************************************************************
1011 *****************************************************************************/
1012 static void PictureReleaseCallback( picture_t *p_picture )
1014 if( --p_picture->i_refcount > 0 )
1016 picture_Delete( p_picture );
1018 /*****************************************************************************
1020 *****************************************************************************/
1021 picture_t *picture_New( vlc_fourcc_t i_chroma, int i_width, int i_height, int i_aspect )
1023 picture_t *p_picture = malloc( sizeof(*p_picture) );
1028 memset( p_picture, 0, sizeof(*p_picture) );
1029 if( __vout_AllocatePicture( NULL, p_picture,
1030 i_chroma, i_width, i_height, i_aspect ) )
1036 p_picture->i_refcount = 1;
1037 p_picture->pf_release = PictureReleaseCallback;
1038 p_picture->i_status = RESERVED_PICTURE;
1043 /*****************************************************************************
1045 *****************************************************************************/
1046 void picture_Delete( picture_t *p_picture )
1048 assert( p_picture && p_picture->i_refcount == 0 );
1050 free( p_picture->p_q );
1051 free( p_picture->p_data_orig );
1052 free( p_picture->p_sys );
1056 /*****************************************************************************
1058 *****************************************************************************/
1059 void picture_CopyPixels( picture_t *p_dst, const picture_t *p_src )
1063 for( i = 0; i < p_src->i_planes ; i++ )
1064 plane_CopyPixels( p_dst->p+i, p_src->p+i );
1067 void plane_CopyPixels( plane_t *p_dst, const plane_t *p_src )
1069 const unsigned i_width = __MIN( p_dst->i_visible_pitch,
1070 p_src->i_visible_pitch );
1071 const unsigned i_height = __MIN( p_dst->i_visible_lines,
1072 p_src->i_visible_lines );
1074 if( p_src->i_pitch == p_dst->i_pitch )
1076 /* There are margins, but with the same width : perfect ! */
1077 vlc_memcpy( p_dst->p_pixels, p_src->p_pixels,
1078 p_src->i_pitch * i_height );
1082 /* We need to proceed line by line */
1083 uint8_t *p_in = p_src->p_pixels;
1084 uint8_t *p_out = p_dst->p_pixels;
1090 for( i_line = i_height; i_line--; )
1092 vlc_memcpy( p_out, p_in, i_width );
1093 p_in += p_src->i_pitch;
1094 p_out += p_dst->i_pitch;
1099 /*****************************************************************************
1101 *****************************************************************************/