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>
43 #include "vout_pictures.h"
44 #include "vout_internal.h"
49 * Remove the reservation flag of a picture, which will cause it to be ready
52 void vout_DisplayPicture( vout_thread_t *p_vout, picture_t *p_pic )
54 vlc_mutex_lock( &p_vout->picture_lock );
56 if( p_pic->i_status == RESERVED_PICTURE )
58 p_pic->i_status = READY_PICTURE;
59 vlc_cond_signal( &p_vout->p->picture_wait );
63 msg_Err( p_vout, "picture to display %p has invalid status %d",
64 p_pic, p_pic->i_status );
66 p_vout->p->i_picture_qtype = p_pic->i_qtype;
68 vlc_mutex_unlock( &p_vout->picture_lock );
72 * Allocate a picture in the video output heap.
74 * This function creates a reserved image in the video output heap.
75 * A null pointer is returned if the function fails. This method provides an
76 * already allocated zone of memory in the picture data fields.
77 * It needs locking since several pictures can be created by several producers
80 int vout_CountPictureAvailable( vout_thread_t *p_vout )
85 vlc_mutex_lock( &p_vout->picture_lock );
86 for( i_pic = 0; i_pic < I_RENDERPICTURES; i_pic++ )
88 picture_t *p_pic = PP_RENDERPICTURE[(p_vout->render.i_last_used_pic + i_pic + 1) % I_RENDERPICTURES];
90 switch( p_pic->i_status )
92 case DESTROYED_PICTURE:
104 vlc_mutex_unlock( &p_vout->picture_lock );
109 picture_t *vout_CreatePicture( vout_thread_t *p_vout,
111 bool b_top_field_first,
112 unsigned int i_nb_fields )
114 int i_pic; /* picture index */
116 picture_t * p_freepic = NULL; /* first free picture */
119 vlc_mutex_lock( &p_vout->picture_lock );
122 * Look for an empty place in the picture heap.
124 for( i_pic = 0; i_pic < I_RENDERPICTURES; i_pic++ )
126 p_pic = PP_RENDERPICTURE[(p_vout->render.i_last_used_pic + i_pic + 1)
129 switch( p_pic->i_status )
131 case DESTROYED_PICTURE:
132 /* Memory will not be reallocated, and function can end
133 * immediately - this is the best possible case, since no
134 * memory allocation needs to be done */
135 p_pic->i_status = RESERVED_PICTURE;
136 p_pic->i_refcount = 0;
139 p_pic->b_progressive = b_progressive;
140 p_pic->i_nb_fields = i_nb_fields;
141 p_pic->b_top_field_first = b_top_field_first;
143 p_vout->i_heap_size++;
144 p_vout->render.i_last_used_pic =
145 ( p_vout->render.i_last_used_pic + i_pic + 1 )
147 vlc_mutex_unlock( &p_vout->picture_lock );
151 /* Picture is empty and ready for allocation */
152 p_vout->render.i_last_used_pic =
153 ( p_vout->render.i_last_used_pic + i_pic + 1 )
166 if( p_freepic != NULL )
168 vout_AllocatePicture( VLC_OBJECT(p_vout),
169 p_freepic, p_vout->render.i_chroma,
170 p_vout->render.i_width, p_vout->render.i_height,
171 p_vout->render.i_aspect );
173 if( p_freepic->i_planes )
175 /* Copy picture information, set some default values */
176 p_freepic->i_status = RESERVED_PICTURE;
177 p_freepic->i_type = MEMORY_PICTURE;
178 p_freepic->b_slow = 0;
180 p_freepic->i_refcount = 0;
181 p_freepic->b_force = 0;
183 p_freepic->b_progressive = b_progressive;
184 p_freepic->i_nb_fields = i_nb_fields;
185 p_freepic->b_top_field_first = b_top_field_first;
187 p_vout->i_heap_size++;
191 /* Memory allocation failed : set picture as empty */
192 p_freepic->i_status = FREE_PICTURE;
195 msg_Err( p_vout, "picture allocation failed" );
198 vlc_mutex_unlock( &p_vout->picture_lock );
203 /* No free or destroyed picture could be found, but the decoder
204 * will try again in a while. */
205 vlc_mutex_unlock( &p_vout->picture_lock );
211 static void DestroyPicture( vout_thread_t *p_vout, picture_t *p_picture )
213 vlc_assert_locked( &p_vout->picture_lock );
215 p_picture->i_status = DESTROYED_PICTURE;
216 p_vout->i_heap_size--;
217 picture_CleanupQuant( p_picture );
219 vlc_cond_signal( &p_vout->p->picture_wait );
223 * Remove a permanent or reserved picture from the heap
225 * This function frees a previously reserved picture or a permanent
226 * picture. It is meant to be used when the construction of a picture aborted.
227 * Note that the picture will be destroyed even if it is linked !
229 * TODO remove it, vout_DropPicture should be used instead
231 void vout_DestroyPicture( vout_thread_t *p_vout, picture_t *p_pic )
234 /* Check if picture status is valid */
235 vlc_mutex_lock( &p_vout->picture_lock );
236 if( p_pic->i_status != RESERVED_PICTURE )
238 msg_Err( p_vout, "picture to destroy %p has invalid status %d",
239 p_pic, p_pic->i_status );
241 vlc_mutex_unlock( &p_vout->picture_lock );
244 vout_DropPicture( p_vout, p_pic );
248 void vout_UsePictureLocked( vout_thread_t *p_vout, picture_t *p_picture )
250 vlc_assert_locked( &p_vout->picture_lock );
251 if( p_picture->i_refcount > 0 )
253 /* Pretend we displayed the picture, but don't destroy
254 * it since the decoder might still need it. */
255 p_picture->i_status = DISPLAYED_PICTURE;
259 /* Destroy the picture without displaying it */
260 DestroyPicture( p_vout, p_picture );
265 void vout_DropPicture( vout_thread_t *p_vout, picture_t *p_pic )
267 vlc_mutex_lock( &p_vout->picture_lock );
269 if( p_pic->i_status == READY_PICTURE )
271 /* Grr cannot destroy ready picture by myself so be sure vout won't like it */
273 vlc_cond_signal( &p_vout->p->picture_wait );
277 vout_UsePictureLocked( p_vout, p_pic );
280 vlc_mutex_unlock( &p_vout->picture_lock );
284 * Increment reference counter of a picture
286 * This function increments the reference counter of a picture in the video
287 * heap. It needs a lock since several producer threads can access the picture.
289 void vout_LinkPicture( vout_thread_t *p_vout, picture_t *p_pic )
291 vlc_mutex_lock( &p_vout->picture_lock );
293 vlc_mutex_unlock( &p_vout->picture_lock );
297 * Decrement reference counter of a picture
299 * This function decrement the reference counter of a picture in the video heap
301 void vout_UnlinkPicture( vout_thread_t *p_vout, picture_t *p_pic )
303 vlc_mutex_lock( &p_vout->picture_lock );
305 if( p_pic->i_refcount > 0 )
308 msg_Err( p_vout, "Invalid picture reference count (%p, %d)",
309 p_pic, p_pic->i_refcount );
311 if( p_pic->i_refcount == 0 && p_pic->i_status == DISPLAYED_PICTURE )
312 DestroyPicture( p_vout, p_pic );
314 vlc_mutex_unlock( &p_vout->picture_lock );
317 static int vout_LockPicture( vout_thread_t *p_vout, picture_t *p_picture )
319 if( p_picture->pf_lock )
320 return p_picture->pf_lock( p_vout, p_picture );
323 static void vout_UnlockPicture( vout_thread_t *p_vout, picture_t *p_picture )
325 if( p_picture->pf_unlock )
326 p_picture->pf_unlock( p_vout, p_picture );
332 * This function chooses whether the current picture needs to be copied
333 * before rendering, does the subpicture magic, and tells the video output
334 * thread which direct buffer needs to be displayed.
336 picture_t *vout_RenderPicture( vout_thread_t *p_vout, picture_t *p_pic,
337 subpicture_t *p_subpic, bool b_paused )
342 if( p_pic->i_type == DIRECT_PICTURE )
344 /* Picture is in a direct buffer. */
346 if( p_subpic != NULL )
348 /* We have subtitles. First copy the picture to
349 * the spare direct buffer, then render the
351 if( vout_LockPicture( p_vout, PP_OUTPUTPICTURE[0] ) )
354 picture_Copy( PP_OUTPUTPICTURE[0], p_pic );
356 spu_RenderSubpictures( p_vout->p_spu,
357 PP_OUTPUTPICTURE[0], &p_vout->fmt_out,
358 p_subpic, &p_vout->fmt_in, b_paused );
360 vout_UnlockPicture( p_vout, PP_OUTPUTPICTURE[0] );
362 return PP_OUTPUTPICTURE[0];
365 /* No subtitles, picture is in a directbuffer so
366 * we can display it directly (even if it is still
371 /* Not a direct buffer. We either need to copy it to a direct buffer,
372 * or render it if the chroma isn't the same. */
373 if( p_vout->p->b_direct )
375 /* Picture is not in a direct buffer, but is exactly the
376 * same size as the direct buffers. A memcpy() is enough,
377 * then render the subtitles. */
379 if( vout_LockPicture( p_vout, PP_OUTPUTPICTURE[0] ) )
382 picture_Copy( PP_OUTPUTPICTURE[0], p_pic );
383 spu_RenderSubpictures( p_vout->p_spu,
384 PP_OUTPUTPICTURE[0], &p_vout->fmt_out,
385 p_subpic, &p_vout->fmt_in, b_paused );
387 vout_UnlockPicture( p_vout, PP_OUTPUTPICTURE[0] );
389 return PP_OUTPUTPICTURE[0];
392 /* Picture is not in a direct buffer, and needs to be converted to
393 * another size/chroma. Then the subtitles need to be rendered as
394 * well. This usually means software YUV, or hardware YUV with a
395 * different chroma. */
397 if( p_subpic != NULL && p_vout->p_picture[0].b_slow )
399 /* The picture buffer is in slow memory. We'll use
400 * the "2 * VOUT_MAX_PICTURES + 1" picture as a temporary
401 * one for subpictures rendering. */
402 picture_t *p_tmp_pic = &p_vout->p_picture[2 * VOUT_MAX_PICTURES];
403 if( p_tmp_pic->i_status == FREE_PICTURE )
405 vout_AllocatePicture( VLC_OBJECT(p_vout),
406 p_tmp_pic, p_vout->fmt_out.i_chroma,
407 p_vout->fmt_out.i_width,
408 p_vout->fmt_out.i_height,
409 p_vout->fmt_out.i_aspect );
410 p_tmp_pic->i_type = MEMORY_PICTURE;
411 p_tmp_pic->i_status = RESERVED_PICTURE;
414 /* Convert image to the first direct buffer */
415 p_vout->p->p_chroma->p_owner = (filter_owner_sys_t *)p_tmp_pic;
416 p_vout->p->p_chroma->pf_video_filter( p_vout->p->p_chroma, p_pic );
418 /* Render subpictures on the first direct buffer */
419 spu_RenderSubpictures( p_vout->p_spu,
420 p_tmp_pic, &p_vout->fmt_out,
421 p_subpic, &p_vout->fmt_in, b_paused );
423 if( vout_LockPicture( p_vout, &p_vout->p_picture[0] ) )
426 picture_Copy( &p_vout->p_picture[0], p_tmp_pic );
430 if( vout_LockPicture( p_vout, &p_vout->p_picture[0] ) )
433 /* Convert image to the first direct buffer */
434 p_vout->p->p_chroma->p_owner = (filter_owner_sys_t *)&p_vout->p_picture[0];
435 p_vout->p->p_chroma->pf_video_filter( p_vout->p->p_chroma, p_pic );
437 /* Render subpictures on the first direct buffer */
438 spu_RenderSubpictures( p_vout->p_spu,
439 &p_vout->p_picture[0], &p_vout->fmt_out,
440 p_subpic, &p_vout->fmt_in, b_paused );
443 vout_UnlockPicture( p_vout, &p_vout->p_picture[0] );
445 return &p_vout->p_picture[0];
449 * Calculate image window coordinates
451 * This function will be accessed by plugins. It calculates the relative
452 * position of the output window and the image window.
454 void vout_PlacePicture( const vout_thread_t *p_vout,
455 unsigned int i_width, unsigned int i_height,
456 unsigned int *restrict pi_x,
457 unsigned int *restrict pi_y,
458 unsigned int *restrict pi_width,
459 unsigned int *restrict pi_height )
461 if( i_width <= 0 || i_height <= 0 )
463 *pi_width = *pi_height = *pi_x = *pi_y = 0;
467 if( p_vout->b_autoscale )
470 *pi_height = i_height;
474 int i_zoom = p_vout->i_zoom;
475 /* be realistic, scaling factor confined between .2 and 10. */
476 if( i_zoom > 10 * ZOOM_FP_FACTOR ) i_zoom = 10 * ZOOM_FP_FACTOR;
477 else if( i_zoom < ZOOM_FP_FACTOR / 5 ) i_zoom = ZOOM_FP_FACTOR / 5;
479 unsigned int i_original_width, i_original_height;
481 if( p_vout->fmt_in.i_sar_num >= p_vout->fmt_in.i_sar_den )
483 i_original_width = p_vout->fmt_in.i_visible_width *
484 p_vout->fmt_in.i_sar_num / p_vout->fmt_in.i_sar_den;
485 i_original_height = p_vout->fmt_in.i_visible_height;
489 i_original_width = p_vout->fmt_in.i_visible_width;
490 i_original_height = p_vout->fmt_in.i_visible_height *
491 p_vout->fmt_in.i_sar_den / p_vout->fmt_in.i_sar_num;
494 /* On windows, inner video window exceeding container leads to black screen */
495 *pi_width = __MIN( i_width, i_original_width * i_zoom / ZOOM_FP_FACTOR );
496 *pi_height = __MIN( i_height, i_original_height * i_zoom / ZOOM_FP_FACTOR );
498 *pi_width = i_original_width * i_zoom / ZOOM_FP_FACTOR ;
499 *pi_height = i_original_height * i_zoom / ZOOM_FP_FACTOR ;
503 int64_t i_scaled_width = p_vout->fmt_in.i_visible_width * (int64_t)p_vout->fmt_in.i_sar_num *
504 *pi_height / p_vout->fmt_in.i_visible_height / p_vout->fmt_in.i_sar_den;
505 int64_t i_scaled_height = p_vout->fmt_in.i_visible_height * (int64_t)p_vout->fmt_in.i_sar_den *
506 *pi_width / p_vout->fmt_in.i_visible_width / p_vout->fmt_in.i_sar_num;
508 if( i_scaled_width <= 0 || i_scaled_height <= 0 )
510 msg_Warn( p_vout, "ignoring broken aspect ratio" );
511 i_scaled_width = *pi_width;
512 i_scaled_height = *pi_height;
515 if( i_scaled_width > *pi_width )
516 *pi_height = i_scaled_height;
518 *pi_width = i_scaled_width;
520 switch( p_vout->i_alignment & VOUT_ALIGN_HMASK )
522 case VOUT_ALIGN_LEFT:
525 case VOUT_ALIGN_RIGHT:
526 *pi_x = i_width - *pi_width;
529 *pi_x = ( i_width - *pi_width ) / 2;
532 switch( p_vout->i_alignment & VOUT_ALIGN_VMASK )
537 case VOUT_ALIGN_BOTTOM:
538 *pi_y = i_height - *pi_height;
541 *pi_y = ( i_height - *pi_height ) / 2;
546 * Allocate a new picture in the heap.
548 * This function allocates a fake direct buffer in memory, which can be
549 * used exactly like a video buffer. The video output thread then manages
550 * how it gets displayed.
552 int __vout_AllocatePicture( vlc_object_t *p_this, picture_t *p_pic,
553 vlc_fourcc_t i_chroma,
554 int i_width, int i_height, int i_aspect )
556 int i_bytes, i_index, i_width_aligned, i_height_aligned;
558 /* Make sure the real dimensions are a multiple of 16 */
559 i_width_aligned = (i_width + 15) >> 4 << 4;
560 i_height_aligned = (i_height + 15) >> 4 << 4;
562 if( picture_Setup( p_pic, i_chroma,
563 i_width, i_height, i_aspect ) != VLC_SUCCESS )
569 /* Calculate how big the new image should be */
570 i_bytes = p_pic->format.i_bits_per_pixel *
571 i_width_aligned * i_height_aligned / 8;
573 p_pic->p_data = vlc_memalign( &p_pic->p_data_orig, 16, i_bytes );
575 if( p_pic->p_data == NULL )
581 /* Fill the p_pixels field for each plane */
582 p_pic->p[ 0 ].p_pixels = p_pic->p_data;
584 for( i_index = 1; i_index < p_pic->i_planes; i_index++ )
586 p_pic->p[i_index].p_pixels = p_pic->p[i_index-1].p_pixels +
587 p_pic->p[i_index-1].i_lines * p_pic->p[i_index-1].i_pitch;
594 * Compare two chroma values
596 * This function returns 1 if the two fourcc values given as argument are
597 * the same format (eg. UYVY/UYNV) or almost the same format (eg. I420/YV12)
599 int vout_ChromaCmp( vlc_fourcc_t i_chroma, vlc_fourcc_t i_amorhc )
601 static const vlc_fourcc_t p_I420[] = {
602 VLC_CODEC_I420, VLC_CODEC_YV12, VLC_CODEC_J420, 0
604 static const vlc_fourcc_t p_I422[] = {
605 VLC_CODEC_I422, VLC_CODEC_J422, 0
607 static const vlc_fourcc_t p_I440[] = {
608 VLC_CODEC_I440, VLC_CODEC_J440, 0
610 static const vlc_fourcc_t p_I444[] = {
611 VLC_CODEC_I444, VLC_CODEC_J444, 0
613 static const vlc_fourcc_t *pp_fcc[] = {
614 p_I420, p_I422, p_I440, p_I444, NULL
618 i_chroma = vlc_fourcc_GetCodec( VIDEO_ES, i_chroma );
619 i_amorhc = vlc_fourcc_GetCodec( VIDEO_ES, i_amorhc );
621 /* If they are the same, they are the same ! */
622 if( i_chroma == i_amorhc )
625 /* Check for equivalence classes */
626 for( int i = 0; pp_fcc[i] != NULL; i++ )
630 for( int j = 0; pp_fcc[i][j] != 0; j++ )
632 if( i_chroma == pp_fcc[i][j] )
634 if( i_amorhc == pp_fcc[i][j] )
637 if( b_fcc1 && b_fcc2 )
643 /*****************************************************************************
645 *****************************************************************************/
646 static void PictureReleaseCallback( picture_t *p_picture )
648 if( --p_picture->i_refcount > 0 )
650 picture_Delete( p_picture );
653 /*****************************************************************************
655 *****************************************************************************/
656 void picture_Reset( picture_t *p_picture )
659 p_picture->date = VLC_TS_INVALID;
660 p_picture->b_force = false;
661 p_picture->b_progressive = false;
662 p_picture->i_nb_fields = 0;
663 p_picture->b_top_field_first = false;
664 picture_CleanupQuant( p_picture );
667 /*****************************************************************************
669 *****************************************************************************/
670 int picture_Setup( picture_t *p_picture, vlc_fourcc_t i_chroma, int i_width, int i_height, int i_aspect )
672 int i_index, i_width_aligned, i_height_aligned;
674 /* Store default values */
675 for( i_index = 0; i_index < VOUT_MAX_PLANES; i_index++ )
677 p_picture->p[i_index].p_pixels = NULL;
678 p_picture->p[i_index].i_pixel_pitch = 1;
681 p_picture->pf_release = NULL;
682 p_picture->p_release_sys = NULL;
683 p_picture->pf_lock = NULL;
684 p_picture->pf_unlock = NULL;
685 p_picture->i_refcount = 0;
687 p_picture->i_qtype = QTYPE_NONE;
688 p_picture->i_qstride = 0;
689 p_picture->p_q = NULL;
691 video_format_Setup( &p_picture->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 */
698 switch( vlc_fourcc_GetCodec( VIDEO_ES, i_chroma ) )
701 p_picture->p[ Y_PLANE ].i_lines = i_height_aligned;
702 p_picture->p[ Y_PLANE ].i_visible_lines = i_height;
703 p_picture->p[ Y_PLANE ].i_pitch = i_width_aligned;
704 p_picture->p[ Y_PLANE ].i_visible_pitch = i_width;
705 p_picture->p[ U_PLANE ].i_lines = i_height_aligned;
706 p_picture->p[ U_PLANE ].i_visible_lines = i_height;
707 p_picture->p[ U_PLANE ].i_pitch = i_width_aligned / 4;
708 p_picture->p[ U_PLANE ].i_visible_pitch = i_width / 4;
709 p_picture->p[ V_PLANE ].i_lines = i_height_aligned;
710 p_picture->p[ V_PLANE ].i_visible_lines = i_height;
711 p_picture->p[ V_PLANE ].i_pitch = i_width_aligned / 4;
712 p_picture->p[ V_PLANE ].i_visible_pitch = i_width / 4;
713 p_picture->i_planes = 3;
717 p_picture->p[ Y_PLANE ].i_lines = i_height_aligned;
718 p_picture->p[ Y_PLANE ].i_visible_lines = i_height;
719 p_picture->p[ Y_PLANE ].i_pitch = i_width_aligned;
720 p_picture->p[ Y_PLANE ].i_visible_pitch = i_width;
721 p_picture->p[ U_PLANE ].i_lines = i_height_aligned / 4;
722 p_picture->p[ U_PLANE ].i_visible_lines = i_height / 4;
723 p_picture->p[ U_PLANE ].i_pitch = i_width_aligned / 4;
724 p_picture->p[ U_PLANE ].i_visible_pitch = i_width / 4;
725 p_picture->p[ V_PLANE ].i_lines = i_height_aligned / 4;
726 p_picture->p[ V_PLANE ].i_visible_lines = i_height / 4;
727 p_picture->p[ V_PLANE ].i_pitch = i_width_aligned / 4;
728 p_picture->p[ V_PLANE ].i_visible_pitch = i_width / 4;
729 p_picture->i_planes = 3;
735 p_picture->p[ Y_PLANE ].i_lines = i_height_aligned;
736 p_picture->p[ Y_PLANE ].i_visible_lines = i_height;
737 p_picture->p[ Y_PLANE ].i_pitch = i_width_aligned;
738 p_picture->p[ Y_PLANE ].i_visible_pitch = i_width;
739 p_picture->p[ U_PLANE ].i_lines = i_height_aligned / 2;
740 p_picture->p[ U_PLANE ].i_visible_lines = i_height / 2;
741 p_picture->p[ U_PLANE ].i_pitch = i_width_aligned / 2;
742 p_picture->p[ U_PLANE ].i_visible_pitch = i_width / 2;
743 p_picture->p[ V_PLANE ].i_lines = i_height_aligned / 2;
744 p_picture->p[ V_PLANE ].i_visible_lines = i_height / 2;
745 p_picture->p[ V_PLANE ].i_pitch = i_width_aligned / 2;
746 p_picture->p[ V_PLANE ].i_visible_pitch = i_width / 2;
747 p_picture->i_planes = 3;
752 p_picture->p[ Y_PLANE ].i_lines = i_height_aligned;
753 p_picture->p[ Y_PLANE ].i_visible_lines = i_height;
754 p_picture->p[ Y_PLANE ].i_pitch = i_width_aligned;
755 p_picture->p[ Y_PLANE ].i_visible_pitch = i_width;
756 p_picture->p[ U_PLANE ].i_lines = i_height_aligned;
757 p_picture->p[ U_PLANE ].i_visible_lines = i_height;
758 p_picture->p[ U_PLANE ].i_pitch = i_width_aligned / 2;
759 p_picture->p[ U_PLANE ].i_visible_pitch = i_width / 2;
760 p_picture->p[ V_PLANE ].i_lines = i_height_aligned;
761 p_picture->p[ V_PLANE ].i_visible_lines = i_height;
762 p_picture->p[ V_PLANE ].i_pitch = i_width_aligned / 2;
763 p_picture->p[ V_PLANE ].i_visible_pitch = i_width / 2;
764 p_picture->i_planes = 3;
769 p_picture->p[ Y_PLANE ].i_lines = i_height_aligned;
770 p_picture->p[ Y_PLANE ].i_visible_lines = i_height;
771 p_picture->p[ Y_PLANE ].i_pitch = i_width_aligned;
772 p_picture->p[ Y_PLANE ].i_visible_pitch = i_width;
773 p_picture->p[ U_PLANE ].i_lines = i_height_aligned / 2;
774 p_picture->p[ U_PLANE ].i_visible_lines = i_height / 2;
775 p_picture->p[ U_PLANE ].i_pitch = i_width_aligned;
776 p_picture->p[ U_PLANE ].i_visible_pitch = i_width;
777 p_picture->p[ V_PLANE ].i_lines = i_height_aligned / 2;
778 p_picture->p[ V_PLANE ].i_visible_lines = i_height / 2;
779 p_picture->p[ V_PLANE ].i_pitch = i_width_aligned;
780 p_picture->p[ V_PLANE ].i_visible_pitch = i_width;
781 p_picture->i_planes = 3;
786 p_picture->p[ Y_PLANE ].i_lines = i_height_aligned;
787 p_picture->p[ Y_PLANE ].i_visible_lines = i_height;
788 p_picture->p[ Y_PLANE ].i_pitch = i_width_aligned;
789 p_picture->p[ Y_PLANE ].i_visible_pitch = i_width;
790 p_picture->p[ U_PLANE ].i_lines = i_height_aligned;
791 p_picture->p[ U_PLANE ].i_visible_lines = i_height;
792 p_picture->p[ U_PLANE ].i_pitch = i_width_aligned;
793 p_picture->p[ U_PLANE ].i_visible_pitch = i_width;
794 p_picture->p[ V_PLANE ].i_lines = i_height_aligned;
795 p_picture->p[ V_PLANE ].i_visible_lines = i_height;
796 p_picture->p[ V_PLANE ].i_pitch = i_width_aligned;
797 p_picture->p[ V_PLANE ].i_visible_pitch = i_width;
798 p_picture->i_planes = 3;
802 p_picture->p[ Y_PLANE ].i_lines = i_height_aligned;
803 p_picture->p[ Y_PLANE ].i_visible_lines = i_height;
804 p_picture->p[ Y_PLANE ].i_pitch = i_width_aligned;
805 p_picture->p[ Y_PLANE ].i_visible_pitch = i_width;
806 p_picture->p[ U_PLANE ].i_lines = i_height_aligned;
807 p_picture->p[ U_PLANE ].i_visible_lines = i_height;
808 p_picture->p[ U_PLANE ].i_pitch = i_width_aligned;
809 p_picture->p[ U_PLANE ].i_visible_pitch = i_width;
810 p_picture->p[ V_PLANE ].i_lines = i_height_aligned;
811 p_picture->p[ V_PLANE ].i_visible_lines = i_height;
812 p_picture->p[ V_PLANE ].i_pitch = i_width_aligned;
813 p_picture->p[ V_PLANE ].i_visible_pitch = i_width;
814 p_picture->p[ A_PLANE ].i_lines = i_height_aligned;
815 p_picture->p[ A_PLANE ].i_visible_lines = i_height;
816 p_picture->p[ A_PLANE ].i_pitch = i_width_aligned;
817 p_picture->p[ A_PLANE ].i_visible_pitch = i_width;
818 p_picture->i_planes = 4;
822 p_picture->p->i_lines = i_height_aligned;
823 p_picture->p->i_visible_lines = i_height;
824 p_picture->p->i_pitch = i_width_aligned;
825 p_picture->p->i_visible_pitch = i_width;
826 p_picture->p->i_pixel_pitch = 8;
827 p_picture->i_planes = 1;
831 p_picture->p->i_lines = i_height_aligned;
832 p_picture->p->i_visible_lines = i_height;
833 p_picture->p->i_pitch = i_width_aligned;
834 p_picture->p->i_visible_pitch = i_width;
835 p_picture->p->i_pixel_pitch = 4;
836 p_picture->i_planes = 1;
843 p_picture->p->i_lines = i_height_aligned;
844 p_picture->p->i_visible_lines = i_height;
845 p_picture->p->i_pitch = i_width_aligned * 2;
846 p_picture->p->i_visible_pitch = i_width * 2;
847 p_picture->p->i_pixel_pitch = 4;
848 p_picture->i_planes = 1;
852 p_picture->p->i_lines = i_height_aligned;
853 p_picture->p->i_visible_lines = i_height;
854 p_picture->p->i_pitch = i_width_aligned;
855 p_picture->p->i_visible_pitch = i_width;
856 p_picture->p->i_pixel_pitch = 1;
857 p_picture->i_planes = 1;
860 case VLC_CODEC_RGB15:
861 p_picture->p->i_lines = i_height_aligned;
862 p_picture->p->i_visible_lines = i_height;
863 p_picture->p->i_pitch = i_width_aligned * 2;
864 p_picture->p->i_visible_pitch = i_width * 2;
865 p_picture->p->i_pixel_pitch = 2;
866 p_picture->i_planes = 1;
869 case VLC_CODEC_RGB16:
870 p_picture->p->i_lines = i_height_aligned;
871 p_picture->p->i_visible_lines = i_height;
872 p_picture->p->i_pitch = i_width_aligned * 2;
873 p_picture->p->i_visible_pitch = i_width * 2;
874 p_picture->p->i_pixel_pitch = 2;
875 p_picture->i_planes = 1;
878 case VLC_CODEC_RGB24:
879 p_picture->p->i_lines = i_height_aligned;
880 p_picture->p->i_visible_lines = i_height;
881 p_picture->p->i_pitch = i_width_aligned * 3;
882 p_picture->p->i_visible_pitch = i_width * 3;
883 p_picture->p->i_pixel_pitch = 3;
884 p_picture->i_planes = 1;
887 case VLC_CODEC_RGB32:
889 p_picture->p->i_lines = i_height_aligned;
890 p_picture->p->i_visible_lines = i_height;
891 p_picture->p->i_pitch = i_width_aligned * 4;
892 p_picture->p->i_visible_pitch = i_width * 4;
893 p_picture->p->i_pixel_pitch = 4;
894 p_picture->i_planes = 1;
899 p_picture->p->i_lines = i_height_aligned;
900 p_picture->p->i_visible_lines = i_height;
901 p_picture->p->i_pitch = i_width_aligned;
902 p_picture->p->i_visible_pitch = i_width;
903 p_picture->p->i_pixel_pitch = 1;
904 p_picture->i_planes = 1;
908 p_picture->i_planes = 0;
915 /*****************************************************************************
917 *****************************************************************************/
918 picture_t *picture_New( vlc_fourcc_t i_chroma, int i_width, int i_height, int i_aspect )
920 picture_t *p_picture = calloc( 1, sizeof(*p_picture) );
924 if( __vout_AllocatePicture( NULL, p_picture,
925 i_chroma, i_width, i_height, i_aspect ) )
931 p_picture->i_refcount = 1;
932 p_picture->pf_release = PictureReleaseCallback;
933 p_picture->i_status = RESERVED_PICTURE;
938 /*****************************************************************************
940 *****************************************************************************/
941 void picture_Delete( picture_t *p_picture )
943 assert( p_picture && p_picture->i_refcount == 0 );
944 assert( p_picture->p_release_sys == NULL );
946 free( p_picture->p_q );
947 free( p_picture->p_data_orig );
948 free( p_picture->p_sys );
952 /*****************************************************************************
954 *****************************************************************************/
955 void picture_CopyPixels( picture_t *p_dst, const picture_t *p_src )
959 for( i = 0; i < p_src->i_planes ; i++ )
960 plane_CopyPixels( p_dst->p+i, p_src->p+i );
963 void plane_CopyPixels( plane_t *p_dst, const plane_t *p_src )
965 const unsigned i_width = __MIN( p_dst->i_visible_pitch,
966 p_src->i_visible_pitch );
967 const unsigned i_height = __MIN( p_dst->i_visible_lines,
968 p_src->i_visible_lines );
970 if( p_src->i_pitch == p_dst->i_pitch )
972 /* There are margins, but with the same width : perfect ! */
973 vlc_memcpy( p_dst->p_pixels, p_src->p_pixels,
974 p_src->i_pitch * i_height );
978 /* We need to proceed line by line */
979 uint8_t *p_in = p_src->p_pixels;
980 uint8_t *p_out = p_dst->p_pixels;
986 for( i_line = i_height; i_line--; )
988 vlc_memcpy( p_out, p_in, i_width );
989 p_in += p_src->i_pitch;
990 p_out += p_dst->i_pitch;
995 /*****************************************************************************
997 *****************************************************************************/
998 int picture_Export( vlc_object_t *p_obj,
1000 video_format_t *p_fmt,
1001 picture_t *p_picture,
1002 vlc_fourcc_t i_format,
1003 int i_override_width, int i_override_height )
1006 video_format_t fmt_in = p_picture->format;
1007 if( fmt_in.i_sar_num <= 0 || fmt_in.i_sar_den <= 0 )
1010 fmt_in.i_sar_den = 1;
1014 video_format_t fmt_out;
1015 memset( &fmt_out, 0, sizeof(fmt_out) );
1017 fmt_out.i_sar_den = 1;
1018 fmt_out.i_chroma = i_format;
1020 /* compute original width/height */
1021 unsigned int i_original_width;
1022 unsigned int i_original_height;
1023 if( fmt_in.i_sar_num >= fmt_in.i_sar_den )
1025 i_original_width = fmt_in.i_width * fmt_in.i_sar_num / fmt_in.i_sar_den;
1026 i_original_height = fmt_in.i_height;
1030 i_original_width = fmt_in.i_width;
1031 i_original_height = fmt_in.i_height * fmt_in.i_sar_den / fmt_in.i_sar_num;
1035 fmt_out.i_width = ( i_override_width < 0 ) ?
1036 i_original_width : i_override_width;
1037 fmt_out.i_height = ( i_override_height < 0 ) ?
1038 i_original_height : i_override_height;
1040 /* scale if only one direction is provided */
1041 if( fmt_out.i_height == 0 && fmt_out.i_width > 0 )
1043 fmt_out.i_height = fmt_in.i_height * fmt_out.i_width
1044 * fmt_in.i_sar_den / fmt_in.i_width / fmt_in.i_sar_num;
1046 else if( fmt_out.i_width == 0 && fmt_out.i_height > 0 )
1048 fmt_out.i_width = fmt_in.i_width * fmt_out.i_height
1049 * fmt_in.i_sar_num / fmt_in.i_height / fmt_in.i_sar_den;
1052 image_handler_t *p_image = image_HandlerCreate( p_obj );
1054 block_t *p_block = image_Write( p_image, p_picture, &fmt_in, &fmt_out );
1056 image_HandlerDelete( p_image );
1059 return VLC_EGENERIC;
1062 p_block->i_dts = p_picture->date;
1066 *pp_image = p_block;
1071 /*****************************************************************************
1073 *****************************************************************************/
1074 struct picture_fifo_t
1078 picture_t **pp_last;
1081 static void PictureFifoReset( picture_fifo_t *p_fifo )
1083 p_fifo->p_first = NULL;
1084 p_fifo->pp_last = &p_fifo->p_first;
1086 static void PictureFifoPush( picture_fifo_t *p_fifo, picture_t *p_picture )
1088 assert( !p_picture->p_next );
1089 *p_fifo->pp_last = p_picture;
1090 p_fifo->pp_last = &p_picture->p_next;
1092 static picture_t *PictureFifoPop( picture_fifo_t *p_fifo )
1094 picture_t *p_picture = p_fifo->p_first;
1098 p_fifo->p_first = p_picture->p_next;
1099 if( !p_fifo->p_first )
1100 p_fifo->pp_last = &p_fifo->p_first;
1105 picture_fifo_t *picture_fifo_New(void)
1107 picture_fifo_t *p_fifo = malloc( sizeof(*p_fifo) );
1111 vlc_mutex_init( &p_fifo->lock );
1112 PictureFifoReset( p_fifo );
1116 void picture_fifo_Push( picture_fifo_t *p_fifo, picture_t *p_picture )
1118 vlc_mutex_lock( &p_fifo->lock );
1119 PictureFifoPush( p_fifo, p_picture );
1120 vlc_mutex_unlock( &p_fifo->lock );
1122 picture_t *picture_fifo_Pop( picture_fifo_t *p_fifo )
1124 vlc_mutex_lock( &p_fifo->lock );
1125 picture_t *p_picture = PictureFifoPop( p_fifo );
1126 vlc_mutex_unlock( &p_fifo->lock );
1130 picture_t *picture_fifo_Peek( picture_fifo_t *p_fifo )
1132 vlc_mutex_lock( &p_fifo->lock );
1133 picture_t *p_picture = p_fifo->p_first;
1135 picture_Hold( p_picture );
1136 vlc_mutex_unlock( &p_fifo->lock );
1140 void picture_fifo_Flush( picture_fifo_t *p_fifo, mtime_t i_date, bool b_below )
1142 picture_t *p_picture;
1144 vlc_mutex_lock( &p_fifo->lock );
1146 p_picture = p_fifo->p_first;
1147 PictureFifoReset( p_fifo );
1150 PictureFifoReset( &tmp );
1154 picture_t *p_next = p_picture->p_next;
1156 p_picture->p_next = NULL;
1157 if( ( b_below && p_picture->date <= i_date ) ||
1158 ( !b_below && p_picture->date >= i_date ) )
1159 PictureFifoPush( &tmp, p_picture );
1161 PictureFifoPush( p_fifo, p_picture );
1164 vlc_mutex_unlock( &p_fifo->lock );
1168 picture_t *p_picture = PictureFifoPop( &tmp );
1171 picture_Release( p_picture );
1174 void picture_fifo_OffsetDate( picture_fifo_t *p_fifo, mtime_t i_delta )
1176 vlc_mutex_lock( &p_fifo->lock );
1177 for( picture_t *p_picture = p_fifo->p_first; p_picture != NULL; )
1179 p_picture->date += i_delta;
1180 p_picture = p_picture->p_next;
1182 vlc_mutex_unlock( &p_fifo->lock );
1184 void picture_fifo_Delete( picture_fifo_t *p_fifo )
1186 picture_fifo_Flush( p_fifo, INT64_MAX, true );
1187 vlc_mutex_destroy( &p_fifo->lock );