1 /*****************************************************************************
2 * vlc_video.h: common video definitions
3 *****************************************************************************
4 * Copyright (C) 1999 - 2008 the VideoLAN team
7 * Authors: Vincent Seguin <seguin@via.ecp.fr>
8 * Samuel Hocevar <sam@via.ecp.fr>
9 * Olivier Aubert <oaubert 47 videolan d07 org>
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
24 *****************************************************************************/
31 * This file defines common video output structures and functions in vlc
35 #include <vlc_filter.h>
37 /** Description of a planar graphic field */
38 typedef struct plane_t
40 uint8_t *p_pixels; /**< Start of the plane's data */
42 /* Variables used for fast memcpy operations */
43 int i_lines; /**< Number of lines, including margins */
44 int i_pitch; /**< Number of bytes in a line, including margins */
46 /** Size of a macropixel, defaults to 1 */
49 /* Variables used for pictures with margins */
50 int i_visible_lines; /**< How many visible lines are there ? */
51 int i_visible_pitch; /**< How many visible pixels are there ? */
58 * Any picture destined to be displayed by a video output thread should be
59 * stored in this structure from it's creation to it's effective display.
60 * Picture type and flags should only be modified by the output thread. Note
61 * that an empty picture MUST have its flags set to 0.
66 * The properties of the picture
68 video_frame_format_t format;
70 /** Picture data - data can always be freely modified, but p_data may
71 * NEVER be modified. A direct buffer can be handled as the plugin
72 * wishes, it can even swap p_pixels buffers. */
74 void *p_data_orig; /**< pointer before memalign */
75 plane_t p[ VOUT_MAX_PLANES ]; /**< description of the planes */
76 int i_planes; /**< number of allocated planes */
78 /** \name Type and flags
79 * Should NOT be modified except by the vout thread
81 int i_status; /**< picture flags */
82 int i_type; /**< is picture a direct buffer ? */
83 bool b_slow; /**< is picture in slow memory ? */
84 int i_matrix_coefficients; /**< in YUV type, encoding type */
87 /** \name Picture management properties
88 * These properties can be modified using the video output thread API,
89 * but should never be written directly */
91 unsigned i_refcount; /**< link reference counter */
92 mtime_t date; /**< display date */
96 /** \name Picture dynamic properties
97 * Those properties can be changed by the decoder
100 bool b_progressive; /**< is it a progressive frame ? */
101 unsigned int i_nb_fields; /**< # of displayed fields */
102 bool b_top_field_first; /**< which field is first */
103 uint8_t *p_q; /**< quantification table */
104 int i_qstride; /**< quantification stride */
105 int i_qtype; /**< quantification style */
108 /** The picture heap we are attached to */
109 picture_heap_t* p_heap;
111 /* Some vouts require the picture to be locked before it can be modified */
112 int (* pf_lock) ( vout_thread_t *, picture_t * );
113 int (* pf_unlock) ( vout_thread_t *, picture_t * );
115 /** Private data - the video output plugin might want to put stuff here to
116 * keep track of the picture */
117 picture_sys_t * p_sys;
119 /** This way the picture_Release can be overloaded */
120 void (*pf_release)( picture_t * );
122 /** Next picture in a FIFO a pictures */
123 struct picture_t *p_next;
127 * This function will create a new picture.
128 * The picture created will implement a default release management compatible
129 * with picture_Yield and picture_Release. This default management will release
130 * picture_sys_t *p_sys field if non NULL.
132 VLC_EXPORT( picture_t *, picture_New, ( vlc_fourcc_t i_chroma, int i_width, int i_height, int i_aspect ) );
135 * This function will force the destruction a picture.
136 * The value of the picture reference count should be 0 before entering this
138 * Unless used for reimplementing pf_release, you should not use this
139 * function but picture_Release.
141 VLC_EXPORT( void, picture_Delete, ( picture_t * ) );
144 * This function will increase the picture reference count.
145 * It will not have any effect on picture obtained from vout
147 static inline void picture_Yield( picture_t *p_picture )
149 if( p_picture->pf_release )
150 p_picture->i_refcount++;
153 * This function will release a picture.
154 * It will not have any effect on picture obtained from vout
156 static inline void picture_Release( picture_t *p_picture )
158 /* FIXME why do we let pf_release handle the i_refcount ? */
159 if( p_picture->pf_release )
160 p_picture->pf_release( p_picture );
164 * This function will copy all picture dynamic properties.
166 static inline void picture_CopyProperties( picture_t *p_dst, const picture_t *p_src )
168 p_dst->date = p_src->date;
169 p_dst->b_force = p_src->b_force;
171 p_dst->b_progressive = p_src->b_progressive;
172 p_dst->i_nb_fields = p_src->i_nb_fields;
173 p_dst->b_top_field_first = p_src->b_top_field_first;
175 /* FIXME: copy ->p_q and ->p_qstride */
179 * This function will copy the picture pixels.
180 * You can safely copy between pictures that do not have the same size,
181 * only the compatible(smaller) part will be copied.
183 VLC_EXPORT( void, picture_CopyPixels, ( picture_t *p_dst, const picture_t *p_src ) );
184 VLC_EXPORT( void, plane_CopyPixels, ( plane_t *p_dst, const plane_t *p_src ) );
187 * This function will copy both picture dynamic properties and pixels.
188 * You have to notice that sometime a simple picture_Yield may do what
189 * you want without the copy overhead.
190 * Provided for convenience.
192 static inline void picture_Copy( picture_t *p_dst, const picture_t *p_src )
194 picture_CopyPixels( p_dst, p_src );
195 picture_CopyProperties( p_dst, p_src );
199 * Video picture heap, either render (to store pictures used
200 * by the decoder) or output (to store pictures displayed by the vout plugin)
202 struct picture_heap_t
204 int i_pictures; /**< current heap size */
206 /* \name Picture static properties
207 * Those properties are fixed at initialization and should NOT be modified
210 unsigned int i_width; /**< picture width */
211 unsigned int i_height; /**< picture height */
212 vlc_fourcc_t i_chroma; /**< picture chroma */
213 unsigned int i_aspect; /**< aspect ratio */
217 picture_t* pp_picture[VOUT_MAX_PICTURES]; /**< pictures */
218 int i_last_used_pic; /**< last used pic in heap */
219 bool b_allow_modify_pics;
221 /* Stuff used for truecolor RGB planes */
222 uint32_t i_rmask; int i_rrshift, i_lrshift;
223 uint32_t i_gmask; int i_rgshift, i_lgshift;
224 uint32_t i_bmask; int i_rbshift, i_lbshift;
226 /** Stuff used for palettized RGB planes */
227 void (* pf_setpalette) ( vout_thread_t *, uint16_t *, uint16_t *, uint16_t * );
230 /*****************************************************************************
231 * Flags used to describe the status of a picture
232 *****************************************************************************/
235 #define EMPTY_PICTURE 0 /* empty buffer */
236 #define MEMORY_PICTURE 100 /* heap-allocated buffer */
237 #define DIRECT_PICTURE 200 /* direct buffer */
240 #define FREE_PICTURE 0 /* free and not allocated */
241 #define RESERVED_PICTURE 1 /* allocated and reserved */
242 #define RESERVED_DATED_PICTURE 2 /* waiting for DisplayPicture */
243 #define RESERVED_DISP_PICTURE 3 /* waiting for a DatePicture */
244 #define READY_PICTURE 4 /* ready for display */
245 #define DISPLAYED_PICTURE 5 /* been displayed but is linked */
246 #define DESTROYED_PICTURE 6 /* allocated but no more used */
248 /* Quantification type */
249 #define QTYPE_MPEG1 0
250 #define QTYPE_MPEG2 1
253 /*****************************************************************************
254 * Shortcuts to access image components
255 *****************************************************************************/
264 #define Y_PIXELS p[Y_PLANE].p_pixels
265 #define Y_PITCH p[Y_PLANE].i_pitch
266 #define U_PIXELS p[U_PLANE].p_pixels
267 #define U_PITCH p[U_PLANE].i_pitch
268 #define V_PIXELS p[V_PLANE].p_pixels
269 #define V_PITCH p[V_PLANE].i_pitch
270 #define A_PIXELS p[A_PLANE].p_pixels
271 #define A_PITCH p[A_PLANE].i_pitch
274 * \defgroup subpicture Video Subpictures
275 * Subpictures are pictures that should be displayed on top of the video, like
277 * \ingroup video_output
282 * Video subtitle region
284 * A subtitle region is defined by a picture (graphic) and its rendering
286 * Subtitles contain a list of regions.
288 struct subpicture_region_t
290 video_format_t fmt; /**< format of the picture */
291 picture_t picture; /**< picture comprising this region */
293 int i_x; /**< position of region */
294 int i_y; /**< position of region */
295 int i_align; /**< alignment within a region */
296 int i_alpha; /**< transparency */
298 char *psz_text; /**< text string comprising this region */
299 char *psz_html; /**< HTML version of subtitle (NULL = use psz_text) */
300 text_style_t *p_style; /**< a description of the text style formatting */
302 subpicture_region_t *p_next; /**< next region in the list */
303 subpicture_region_t *p_cache; /**< modified version of this region */
309 * Any subtitle destined to be displayed by a video output thread should
310 * be stored in this structure from it's creation to it's effective display.
311 * Subtitle type and flags should only be modified by the output thread. Note
312 * that an empty subtitle MUST have its flags set to 0.
316 /** \name Channel ID */
318 int i_channel; /**< subpicture channel ID */
321 /** \name Type and flags
322 Should NOT be modified except by the vout thread */
324 int i_type; /**< type */
325 int i_status; /**< flags */
326 subpicture_t * p_next; /**< next subtitle to be displayed */
329 /** \name Date properties */
331 mtime_t i_start; /**< beginning of display date */
332 mtime_t i_stop; /**< end of display date */
333 bool b_ephemer; /**< If this flag is set to true the subtitle
334 will be displayed untill the next one appear */
335 bool b_fade; /**< enable fading */
336 bool b_pausable; /**< subpicture will be paused if
340 subpicture_region_t *p_region; /**< region list composing this subtitle */
342 /** \name Display properties
343 * These properties are only indicative and may be
344 * changed by the video output thread, or simply ignored depending of the
347 int i_x; /**< offset from alignment position */
348 int i_y; /**< offset from alignment position */
349 int i_width; /**< picture width */
350 int i_height; /**< picture height */
351 int i_alpha; /**< transparency */
352 int i_original_picture_width; /**< original width of the movie */
353 int i_original_picture_height;/**< original height of the movie */
354 bool b_absolute; /**< position is absolute */
355 int i_flags; /**< position flags */
358 /** Pointer to function that renders this subtitle in a picture */
359 void ( *pf_render ) ( vout_thread_t *, picture_t *, const subpicture_t * );
360 /** Pointer to function that cleans up the private data of this subtitle */
361 void ( *pf_destroy ) ( subpicture_t * );
363 /** Pointer to functions for region management */
364 subpicture_region_t * ( *pf_create_region ) ( vlc_object_t *,
366 subpicture_region_t * ( *pf_make_region ) ( vlc_object_t *,
367 video_format_t *, picture_t * );
368 void ( *pf_destroy_region ) ( vlc_object_t *, subpicture_region_t * );
370 void ( *pf_pre_render ) ( video_format_t *, spu_t *, subpicture_t * );
371 void ( *pf_update_regions ) ( video_format_t *, spu_t *,
372 subpicture_t *, mtime_t );
374 /** Private data - the subtitle plugin might want to put stuff here to
375 * keep track of the subpicture */
376 subpicture_sys_t *p_sys; /* subpicture data */
379 /* Subpicture type */
380 #define EMPTY_SUBPICTURE 0 /* subtitle slot is empty and available */
381 #define MEMORY_SUBPICTURE 100 /* subpicture stored in memory */
383 /* Default subpicture channel ID */
384 #define DEFAULT_CHAN 1
386 /* Subpicture status */
387 #define FREE_SUBPICTURE 0 /* free and not allocated */
388 #define RESERVED_SUBPICTURE 1 /* allocated and reserved */
389 #define READY_SUBPICTURE 2 /* ready for display */
391 /* Subpicture position flags */
392 #define SUBPICTURE_ALIGN_LEFT 0x1
393 #define SUBPICTURE_ALIGN_RIGHT 0x2
394 #define SUBPICTURE_ALIGN_TOP 0x4
395 #define SUBPICTURE_ALIGN_BOTTOM 0x8
396 #define SUBPICTURE_ALIGN_MASK ( SUBPICTURE_ALIGN_LEFT|SUBPICTURE_ALIGN_RIGHT| \
397 SUBPICTURE_ALIGN_TOP |SUBPICTURE_ALIGN_BOTTOM )
399 /* Subpicture rendered flag - should only be used by vout_subpictures */
400 #define SUBPICTURE_RENDERED 0x10
402 /*****************************************************************************
404 *****************************************************************************/
407 * Copy the source picture onto the destination picture.
408 * \param p_this a vlc object
409 * \param p_dst pointer to the destination picture.
410 * \param p_src pointer to the source picture.
412 #define vout_CopyPicture(a,b,c) __vout_CopyPicture(VLC_OBJECT(a),b,c)
413 VLC_EXPORT( void, __vout_CopyPicture, ( vlc_object_t *p_this, picture_t *p_dst, picture_t *p_src ) );
416 * Initialise different fields of a picture_t (but does not allocate memory).
417 * \param p_this a vlc object
418 * \param p_pic pointer to the picture structure.
419 * \param i_chroma the wanted chroma for the picture.
420 * \param i_width the wanted width for the picture.
421 * \param i_height the wanted height for the picture.
422 * \param i_aspect the wanted aspect ratio for the picture.
424 #define vout_InitPicture(a,b,c,d,e,f) \
425 __vout_InitPicture(VLC_OBJECT(a),b,c,d,e,f)
426 VLC_EXPORT( int, __vout_InitPicture, ( vlc_object_t *p_this, picture_t *p_pic, uint32_t i_chroma, int i_width, int i_height, int i_aspect ) );
429 * Initialise different fields of a picture_t and allocates the picture buffer.
430 * \param p_this a vlc object
431 * \param p_pic pointer to the picture structure.
432 * \param i_chroma the wanted chroma for the picture.
433 * \param i_width the wanted width for the picture.
434 * \param i_height the wanted height for the picture.
435 * \param i_aspect the wanted aspect ratio for the picture.
437 #define vout_AllocatePicture(a,b,c,d,e,f) \
438 __vout_AllocatePicture(VLC_OBJECT(a),b,c,d,e,f)
439 VLC_EXPORT( int, __vout_AllocatePicture,( vlc_object_t *p_this, picture_t *p_pic, uint32_t i_chroma, int i_width, int i_height, int i_aspect ) );
443 * \defgroup video_output Video Output
444 * This module describes the programming interface for video output threads.
445 * It includes functions allowing to open a new thread, send pictures to a
446 * thread, and destroy a previously opened video output thread.
451 * Video output thread descriptor
453 * Any independent video output device, such as an X11 window or a GGI device,
454 * is represented by a video output thread, and described using the following
461 /** \name Thread properties and locks */
463 vlc_mutex_t picture_lock; /**< picture heap lock */
464 vlc_mutex_t subpicture_lock; /**< subpicture heap lock */
465 vlc_mutex_t change_lock; /**< thread change lock */
466 vlc_mutex_t vfilter_lock; /**< video filter2 change lock */
467 vout_sys_t * p_sys; /**< system output method */
470 /** \name Current display properties */
472 uint16_t i_changes; /**< changes made to the thread.
473 \see \ref vout_changes */
474 float f_gamma; /**< gamma */
475 bool b_grayscale; /**< color or grayscale display */
476 bool b_info; /**< print additional information */
477 bool b_interface; /**< render interface */
478 bool b_scale; /**< allow picture scaling */
479 bool b_fullscreen; /**< toogle fullscreen display */
480 uint32_t render_time; /**< last picture render time */
481 unsigned int i_window_width; /**< video window width */
482 unsigned int i_window_height; /**< video window height */
483 unsigned int i_alignment; /**< video alignment in window */
484 unsigned int i_par_num; /**< monitor pixel aspect-ratio */
485 unsigned int i_par_den; /**< monitor pixel aspect-ratio */
487 struct vout_window_t *p_window; /**< window for embedded vout (if any) */
490 /** \name Plugin used and shortcuts to access its capabilities */
493 int ( *pf_init ) ( vout_thread_t * );
494 void ( *pf_end ) ( vout_thread_t * );
495 int ( *pf_manage ) ( vout_thread_t * );
496 void ( *pf_render ) ( vout_thread_t *, picture_t * );
497 void ( *pf_display ) ( vout_thread_t *, picture_t * );
498 void ( *pf_swap ) ( vout_thread_t * ); /* OpenGL only */
499 int ( *pf_lock ) ( vout_thread_t * ); /* OpenGL only */
500 void ( *pf_unlock ) ( vout_thread_t * ); /* OpenGL only */
501 int ( *pf_control ) ( vout_thread_t *, int, va_list );
505 * These numbers are not supposed to be accurate, but are a
506 * good indication of the thread status */
508 count_t c_fps_samples; /**< picture counts */
509 mtime_t p_fps_sample[VOUT_FPS_SAMPLES]; /**< FPS samples dates */
512 /** \name Video heap and translation tables */
514 int i_heap_size; /**< heap size */
515 picture_heap_t render; /**< rendered pictures */
516 picture_heap_t output; /**< direct buffers */
517 bool b_direct; /**< rendered are like direct ? */
518 filter_t *p_chroma; /**< translation tables */
520 video_format_t fmt_render; /* render format (from the decoder) */
521 video_format_t fmt_in; /* input (modified render) format */
522 video_format_t fmt_out; /* output format (for the video output) */
526 picture_t p_picture[2*VOUT_MAX_PICTURES+1]; /**< pictures */
528 /* Subpicture unit */
533 count_t c_pictures, c_late_pictures;
534 mtime_t display_jitter; /**< average deviation from the PTS */
535 count_t c_jitter_samples; /**< number of samples used
536 for the calculation of the
538 /** delay created by internal caching */
542 char *psz_filter_chain;
543 bool b_filter_change;
545 /* Video filter2 chain */
546 filter_chain_t *p_vf2_chain;
550 bool b_snapshot; /**< take one snapshot on the next loop */
552 /* Video output configuration */
553 config_chain_t *p_cfg;
555 /* Show media title on videoutput */
557 mtime_t i_title_timeout;
558 int i_title_position;
561 #define I_OUTPUTPICTURES p_vout->output.i_pictures
562 #define PP_OUTPUTPICTURE p_vout->output.pp_picture
563 #define I_RENDERPICTURES p_vout->render.i_pictures
564 #define PP_RENDERPICTURE p_vout->render.pp_picture
566 /** \defgroup vout_changes Flags for changes
567 * These flags are set in the vout_thread_t::i_changes field when another
568 * thread changed a variable
571 /** b_info changed */
572 #define VOUT_INFO_CHANGE 0x0001
573 /** b_grayscale changed */
574 #define VOUT_GRAYSCALE_CHANGE 0x0002
575 /** b_interface changed */
576 #define VOUT_INTF_CHANGE 0x0004
577 /** b_scale changed */
578 #define VOUT_SCALE_CHANGE 0x0008
580 #define VOUT_GAMMA_CHANGE 0x0010
581 /** b_cursor changed */
582 #define VOUT_CURSOR_CHANGE 0x0020
583 /** b_fullscreen changed */
584 #define VOUT_FULLSCREEN_CHANGE 0x0040
586 #define VOUT_SIZE_CHANGE 0x0200
588 #define VOUT_DEPTH_CHANGE 0x0400
589 /** change chroma tables */
590 #define VOUT_CHROMA_CHANGE 0x0800
591 /** cropping parameters changed */
592 #define VOUT_CROP_CHANGE 0x1000
593 /** aspect ratio changed */
594 #define VOUT_ASPECT_CHANGE 0x2000
595 /** change/recreate picture buffers */
596 #define VOUT_PICTURE_BUFFERS_CHANGE 0x4000
599 /* Alignment flags */
600 #define VOUT_ALIGN_LEFT 0x0001
601 #define VOUT_ALIGN_RIGHT 0x0002
602 #define VOUT_ALIGN_HMASK 0x0003
603 #define VOUT_ALIGN_TOP 0x0004
604 #define VOUT_ALIGN_BOTTOM 0x0008
605 #define VOUT_ALIGN_VMASK 0x000C
607 #define MAX_JITTER_SAMPLES 20
609 /*****************************************************************************
611 *****************************************************************************/
615 * - returns a suitable vout (if requested by a non NULL p_fmt)
616 * - recycles an old vout (if given) by either destroying it or by saving it
619 * The purpose of this function is to avoid unnecessary creation/destruction of
620 * vout (and to allow optional vout reusing).
622 * You can call vout_Request on a vout created by vout_Create or by a previous
623 * call to vout_Request.
624 * You can release the returned value either by vout_Request or vout_Close()
625 * followed by a vlc_object_release() or shorter vout_CloseAndRelease()
627 * \param p_this a vlc object
628 * \param p_vout a vout candidate
629 * \param p_fmt the video format requested or NULL
630 * \return a vout if p_fmt is non NULL and the request is successfull, NULL
633 #define vout_Request(a,b,c) __vout_Request(VLC_OBJECT(a),b,c)
634 VLC_EXPORT( vout_thread_t *, __vout_Request, ( vlc_object_t *p_this, vout_thread_t *p_vout, video_format_t *p_fmt ) );
637 * This function will create a suitable vout for a given p_fmt. It will never
638 * reuse an already existing unused vout.
640 * You have to call either vout_Close or vout_Request on the returned value
641 * \param p_this a vlc object to which the returned vout will be attached
642 * \param p_fmt the video format requested
643 * \return a vout if the request is successfull, NULL otherwise
645 #define vout_Create(a,b) __vout_Create(VLC_OBJECT(a),b)
646 VLC_EXPORT( vout_thread_t *, __vout_Create, ( vlc_object_t *p_this, video_format_t *p_fmt ) );
649 * This function will close a vout created by vout_Create or vout_Request.
650 * The associated vout module is closed.
651 * Note: It is not released yet, you'll have to call vlc_object_release()
652 * or use the convenient vout_CloseAndRelease().
654 * \param p_vout the vout to close
656 VLC_EXPORT( void, vout_Close, ( vout_thread_t *p_vout ) );
659 * This function will close a vout created by vout_Create
660 * and then release it.
662 * \param p_vout the vout to close and release
664 static inline void vout_CloseAndRelease( vout_thread_t *p_vout )
666 vout_Close( p_vout );
667 vlc_object_release( p_vout );
671 VLC_EXPORT( int, vout_ChromaCmp, ( uint32_t, uint32_t ) );
673 VLC_EXPORT( picture_t *, vout_CreatePicture, ( vout_thread_t *, bool, bool, unsigned int ) );
674 VLC_EXPORT( void, vout_InitFormat, ( video_frame_format_t *, uint32_t, int, int, int ) );
675 VLC_EXPORT( void, vout_DestroyPicture, ( vout_thread_t *, picture_t * ) );
676 VLC_EXPORT( void, vout_DisplayPicture, ( vout_thread_t *, picture_t * ) );
677 VLC_EXPORT( void, vout_DatePicture, ( vout_thread_t *, picture_t *, mtime_t ) );
678 VLC_EXPORT( void, vout_LinkPicture, ( vout_thread_t *, picture_t * ) );
679 VLC_EXPORT( void, vout_UnlinkPicture, ( vout_thread_t *, picture_t * ) );
680 VLC_EXPORT( void, vout_PlacePicture, ( vout_thread_t *, unsigned int, unsigned int, unsigned int *, unsigned int *, unsigned int *, unsigned int * ) );
682 /* DO NOT use vout_RenderPicture unless you are in src/video_ouput */
683 picture_t * vout_RenderPicture ( vout_thread_t *, picture_t *,
686 /* DO NOT use vout_CountPictureAvailable unless your are in src/input/dec.c (no exception) */
687 int vout_CountPictureAvailable( vout_thread_t * );
689 VLC_EXPORT( int, vout_vaControlDefault, ( vout_thread_t *, int, va_list ) );
690 VLC_EXPORT( void *, vout_RequestWindow, ( vout_thread_t *, int *, int *, unsigned int *, unsigned int * ) );
691 VLC_EXPORT( void, vout_ReleaseWindow, ( vout_thread_t *, void * ) );
692 VLC_EXPORT( int, vout_ControlWindow, ( vout_thread_t *, void *, int, va_list ) );
693 void vout_IntfInit( vout_thread_t * );
694 VLC_EXPORT( int, vout_Snapshot, ( vout_thread_t *p_vout, picture_t *p_pic ) );
695 VLC_EXPORT( void, vout_EnableFilter, ( vout_thread_t *, char *,bool , bool ) );
698 static inline int vout_vaControl( vout_thread_t *p_vout, int i_query,
701 if( p_vout->pf_control )
702 return p_vout->pf_control( p_vout, i_query, args );
707 static inline int vout_Control( vout_thread_t *p_vout, int i_query, ... )
712 va_start( args, i_query );
713 i_result = vout_vaControl( p_vout, i_query, args );
720 VOUT_GET_SIZE, /* arg1= unsigned int*, arg2= unsigned int*, res= */
721 VOUT_SET_SIZE, /* arg1= unsigned int, arg2= unsigned int, res= */
722 VOUT_SET_STAY_ON_TOP, /* arg1= bool res= */
726 VOUT_SET_FOCUS, /* arg1= bool res= */
727 VOUT_SET_VIEWPORT, /* arg1= view rect, arg2=clip rect, res= */
728 VOUT_REDRAW_RECT, /* arg1= area rect, res= */
731 typedef struct snapshot_t {
732 char *p_data; /* Data area */
734 int i_width; /* In pixels */
735 int i_height; /* In pixels */
736 int i_datasize; /* In bytes */
737 mtime_t date; /* Presentation time */
742 #endif /* _VLC_VIDEO_H */