/*****************************************************************************
* vlc_video.h: common video definitions
*****************************************************************************
* Copyright (C) 1999 - 2008 the VideoLAN team
* $Id$
*
* Authors: Vincent Seguin <seguin@via.ecp.fr>
* Samuel Hocevar <sam@via.ecp.fr>
* Olivier Aubert <oaubert 47 videolan d07 org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#ifndef VLC_VOUT_H_
#define VLC_VOUT_H_ 1
/**
* \file
* This file defines common video output structures and functions in vlc
*/
#include "vlc_es.h"
#include "vlc_filter.h"
/** Description of a planar graphic field */
typedef struct plane_t
{
uint8_t *p_pixels; /**< Start of the plane's data */
/* Variables used for fast memcpy operations */
int i_lines; /**< Number of lines, including margins */
int i_pitch; /**< Number of bytes in a line, including margins */
/** Size of a macropixel, defaults to 1 */
int i_pixel_pitch;
/* Variables used for pictures with margins */
int i_visible_lines; /**< How many visible lines are there ? */
int i_visible_pitch; /**< How many visible pixels are there ? */
} plane_t;
/**
* Video picture
*
* Any picture destined to be displayed by a video output thread should be
* stored in this structure from it's creation to it's effective display.
* Picture type and flags should only be modified by the output thread. Note
* that an empty picture MUST have its flags set to 0.
*/
struct picture_t
{
/**
* The properties of the picture
*/
video_frame_format_t format;
/** Picture data - data can always be freely modified, but p_data may
* NEVER be modified. A direct buffer can be handled as the plugin
* wishes, it can even swap p_pixels buffers. */
uint8_t *p_data;
void *p_data_orig; /**< pointer before memalign */
plane_t p[ VOUT_MAX_PLANES ]; /**< description of the planes */
int i_planes; /**< number of allocated planes */
/** \name Type and flags
* Should NOT be modified except by the vout thread
* @{*/
int i_status; /**< picture flags */
int i_type; /**< is picture a direct buffer ? */
bool b_slow; /**< is picture in slow memory ? */
int i_matrix_coefficients; /**< in YUV type, encoding type */
/**@}*/
/** \name Picture management properties
* These properties can be modified using the video output thread API,
* but should never be written directly */
/**@{*/
unsigned i_refcount; /**< link reference counter */
mtime_t date; /**< display date */
bool b_force;
/**@}*/
/** \name Picture dynamic properties
* Those properties can be changed by the decoder
* @{
*/
bool b_progressive; /**< is it a progressive frame ? */
unsigned int i_nb_fields; /**< # of displayed fields */
bool b_top_field_first; /**< which field is first */
/**@}*/
/** The picture heap we are attached to */
picture_heap_t* p_heap;
/* Some vouts require the picture to be locked before it can be modified */
int (* pf_lock) ( vout_thread_t *, picture_t * );
int (* pf_unlock) ( vout_thread_t *, picture_t * );
/** Private data - the video output plugin might want to put stuff here to
* keep track of the picture */
picture_sys_t * p_sys;
/** This way the picture_Release can be overloaded */
void (*pf_release)( picture_t * );
/** Next picture in a FIFO a pictures */
struct picture_t *p_next;
};
/**
* This function will create a new picture.
* The picture created will implement a default release management compatible
* with picture_Yield and picture_Release. This default management will release
* picture_sys_t *p_sys field if non NULL.
*/
VLC_EXPORT( picture_t *, picture_New, ( vlc_fourcc_t i_chroma, int i_width, int i_height, int i_aspect ) );
/**
* This function will force the destruction a picture.
* The value of the picture reference count should be 0 before entering this
* function.
* Unless used for reimplementing pf_release, you should not use this
* function but picture_Release.
*/
VLC_EXPORT( void, picture_Delete, ( picture_t * ) );
/**
* This function will increase the picture reference count.
* It will not have any effect on picture obtained from vout
*/
static inline void picture_Yield( picture_t *p_picture )
{
if( p_picture->pf_release )
p_picture->i_refcount++;
}
/**
* This function will release a picture.
* It will not have any effect on picture obtained from vout
*/
static inline void picture_Release( picture_t *p_picture )
{
/* FIXME why do we let pf_release handle the i_refcount ? */
if( p_picture->pf_release )
p_picture->pf_release( p_picture );
}
/**
* This function will copy all picture dynamic properties.
*/
static inline void picture_CopyProperties( picture_t *p_dst, const picture_t *p_src )
{
p_dst->date = p_src->date;
p_dst->b_force = p_src->b_force;
p_dst->b_progressive = p_src->b_progressive;
p_dst->i_nb_fields = p_src->i_nb_fields;
p_dst->b_top_field_first = p_src->b_top_field_first;
}
/**
* This function will copy the picture pixels.
* You can safely copy between pictures that do not have the same size,
* only the compatible(smaller) part will be copied.
*/
VLC_EXPORT( void, picture_CopyPixels, ( picture_t *p_dst, const picture_t *p_src ) );
VLC_EXPORT( void, plane_CopyPixels, ( plane_t *p_dst, const plane_t *p_src ) );
/**
* This function will copy both picture dynamic properties and pixels.
* You have to notice that sometime a simple picture_Yield may do what
* you want without the copy overhead.
* Provided for convenience.
*/
static inline void picture_Copy( picture_t *p_dst, const picture_t *p_src )
{
picture_CopyPixels( p_dst, p_src );
picture_CopyProperties( p_dst, p_src );
}
/**
* Video picture heap, either render (to store pictures used
* by the decoder) or output (to store pictures displayed by the vout plugin)
*/
struct picture_heap_t
{
int i_pictures; /**< current heap size */
/* \name Picture static properties
* Those properties are fixed at initialization and should NOT be modified
* @{
*/
unsigned int i_width; /**< picture width */
unsigned int i_height; /**< picture height */
vlc_fourcc_t i_chroma; /**< picture chroma */
unsigned int i_aspect; /**< aspect ratio */
/**@}*/
/* Real pictures */
picture_t* pp_picture[VOUT_MAX_PICTURES]; /**< pictures */
int i_last_used_pic; /**< last used pic in heap */
bool b_allow_modify_pics;
/* Stuff used for truecolor RGB planes */
uint32_t i_rmask; int i_rrshift, i_lrshift;
uint32_t i_gmask; int i_rgshift, i_lgshift;
uint32_t i_bmask; int i_rbshift, i_lbshift;
/** Stuff used for palettized RGB planes */
void (* pf_setpalette) ( vout_thread_t *, uint16_t *, uint16_t *, uint16_t * );
};
/*****************************************************************************
* Flags used to describe the status of a picture
*****************************************************************************/
/* Picture type */
#define EMPTY_PICTURE 0 /* empty buffer */
#define MEMORY_PICTURE 100 /* heap-allocated buffer */
#define DIRECT_PICTURE 200 /* direct buffer */
/* Picture status */
#define FREE_PICTURE 0 /* free and not allocated */
#define RESERVED_PICTURE 1 /* allocated and reserved */
#define RESERVED_DATED_PICTURE 2 /* waiting for DisplayPicture */
#define RESERVED_DISP_PICTURE 3 /* waiting for a DatePicture */
#define READY_PICTURE 4 /* ready for display */
#define DISPLAYED_PICTURE 5 /* been displayed but is linked */
#define DESTROYED_PICTURE 6 /* allocated but no more used */
/*****************************************************************************
* Shortcuts to access image components
*****************************************************************************/
/* Plane indices */
#define Y_PLANE 0
#define U_PLANE 1
#define V_PLANE 2
#define A_PLANE 3
/* Shortcuts */
#define Y_PIXELS p[Y_PLANE].p_pixels
#define Y_PITCH p[Y_PLANE].i_pitch
#define U_PIXELS p[U_PLANE].p_pixels
#define U_PITCH p[U_PLANE].i_pitch
#define V_PIXELS p[V_PLANE].p_pixels
#define V_PITCH p[V_PLANE].i_pitch
#define A_PIXELS p[A_PLANE].p_pixels
#define A_PITCH p[A_PLANE].i_pitch
/**
* \defgroup subpicture Video Subpictures
* Subpictures are pictures that should be displayed on top of the video, like
* subtitles and OSD
* \ingroup video_output
* @{
*/
/**
* Video subtitle region
*
* A subtitle region is defined by a picture (graphic) and its rendering
* coordinates.
* Subtitles contain a list of regions.
*/
struct subpicture_region_t
{
video_format_t fmt; /**< format of the picture */
picture_t picture; /**< picture comprising this region */
int i_x; /**< position of region */
int i_y; /**< position of region */
int i_align; /**< alignment within a region */
int i_alpha; /**< transparency */
char *psz_text; /**< text string comprising this region */
char *psz_html; /**< HTML version of subtitle (NULL = use psz_text) */
text_style_t *p_style; /**< a description of the text style formatting */
subpicture_region_t *p_next; /**< next region in the list */
subpicture_region_t *p_cache; /**< modified version of this region */
};
/**
* Video subtitle
*
* Any subtitle destined to be displayed by a video output thread should
* be stored in this structure from it's creation to it's effective display.
* Subtitle type and flags should only be modified by the output thread. Note
* that an empty subtitle MUST have its flags set to 0.
*/
struct subpicture_t
{
/** \name Channel ID */
/**@{*/
int i_channel; /**< subpicture channel ID */
/**@}*/
/** \name Type and flags
Should NOT be modified except by the vout thread */
/**@{*/
int i_type; /**< type */
int i_status; /**< flags */
subpicture_t * p_next; /**< next subtitle to be displayed */
/**@}*/
/** \name Date properties */
/**@{*/
mtime_t i_start; /**< beginning of display date */
mtime_t i_stop; /**< end of display date */
bool b_ephemer; /**< If this flag is set to true the subtitle
will be displayed untill the next one appear */
bool b_fade; /**< enable fading */
bool b_pausable; /**< subpicture will be paused if
stream is paused */
/**@}*/
subpicture_region_t *p_region; /**< region list composing this subtitle */
/** \name Display properties
* These properties are only indicative and may be
* changed by the video output thread, or simply ignored depending of the
* subtitle type. */
/**@{*/
int i_x; /**< offset from alignment position */
int i_y; /**< offset from alignment position */
int i_width; /**< picture width */
int i_height; /**< picture height */
int i_alpha; /**< transparency */
int i_original_picture_width; /**< original width of the movie */
int i_original_picture_height;/**< original height of the movie */
bool b_absolute; /**< position is absolute */
int i_flags; /**< position flags */
/**@}*/
/** Pointer to function that renders this subtitle in a picture */
void ( *pf_render ) ( vout_thread_t *, picture_t *, const subpicture_t * );
/** Pointer to function that cleans up the private data of this subtitle */
void ( *pf_destroy ) ( subpicture_t * );
/** Pointer to functions for region management */
subpicture_region_t * ( *pf_create_region ) ( vlc_object_t *,
video_format_t * );
subpicture_region_t * ( *pf_make_region ) ( vlc_object_t *,
video_format_t *, picture_t * );
void ( *pf_destroy_region ) ( vlc_object_t *, subpicture_region_t * );
void ( *pf_pre_render ) ( video_format_t *, spu_t *, subpicture_t * );
void ( *pf_update_regions ) ( video_format_t *, spu_t *,
subpicture_t *, mtime_t );
/** Private data - the subtitle plugin might want to put stuff here to
* keep track of the subpicture */
subpicture_sys_t *p_sys; /* subpicture data */
};
/* Subpicture type */
#define EMPTY_SUBPICTURE 0 /* subtitle slot is empty and available */
#define MEMORY_SUBPICTURE 100 /* subpicture stored in memory */
/* Default subpicture channel ID */
#define DEFAULT_CHAN 1
/* Subpicture status */
#define FREE_SUBPICTURE 0 /* free and not allocated */
#define RESERVED_SUBPICTURE 1 /* allocated and reserved */
#define READY_SUBPICTURE 2 /* ready for display */
/* Subpicture position flags */
#define SUBPICTURE_ALIGN_LEFT 0x1
#define SUBPICTURE_ALIGN_RIGHT 0x2
#define SUBPICTURE_ALIGN_TOP 0x4
#define SUBPICTURE_ALIGN_BOTTOM 0x8
#define SUBPICTURE_ALIGN_MASK ( SUBPICTURE_ALIGN_LEFT|SUBPICTURE_ALIGN_RIGHT| \
SUBPICTURE_ALIGN_TOP |SUBPICTURE_ALIGN_BOTTOM )
/* Subpicture rendered flag - should only be used by vout_subpictures */
#define SUBPICTURE_RENDERED 0x10
/*****************************************************************************
* Prototypes
*****************************************************************************/
/**
* Copy the source picture onto the destination picture.
* \param p_this a vlc object
* \param p_dst pointer to the destination picture.
* \param p_src pointer to the source picture.
*/
#define vout_CopyPicture(a,b,c) __vout_CopyPicture(VLC_OBJECT(a),b,c)
VLC_EXPORT( void, __vout_CopyPicture, ( vlc_object_t *p_this, picture_t *p_dst, picture_t *p_src ) );
/**
* Initialise different fields of a picture_t (but does not allocate memory).
* \param p_this a vlc object
* \param p_pic pointer to the picture structure.
* \param i_chroma the wanted chroma for the picture.
* \param i_width the wanted width for the picture.
* \param i_height the wanted height for the picture.
* \param i_aspect the wanted aspect ratio for the picture.
*/
#define vout_InitPicture(a,b,c,d,e,f) \
__vout_InitPicture(VLC_OBJECT(a),b,c,d,e,f)
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 ) );
/**
* Initialise different fields of a picture_t and allocates the picture buffer.
* \param p_this a vlc object
* \param p_pic pointer to the picture structure.
* \param i_chroma the wanted chroma for the picture.
* \param i_width the wanted width for the picture.
* \param i_height the wanted height for the picture.
* \param i_aspect the wanted aspect ratio for the picture.
*/
#define vout_AllocatePicture(a,b,c,d,e,f) \
__vout_AllocatePicture(VLC_OBJECT(a),b,c,d,e,f)
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 ) );
/**
* \defgroup video_output Video Output
* This module describes the programming interface for video output threads.
* It includes functions allowing to open a new thread, send pictures to a
* thread, and destroy a previously opened video output thread.
* @{
*/
/**
* Video output thread descriptor
*
* Any independent video output device, such as an X11 window or a GGI device,
* is represented by a video output thread, and described using the following
* structure.
*/
struct vout_thread_t
{
VLC_COMMON_MEMBERS
/** \name Thread properties and locks */
/**@{*/
vlc_mutex_t picture_lock; /**< picture heap lock */
vlc_mutex_t subpicture_lock; /**< subpicture heap lock */
vlc_mutex_t change_lock; /**< thread change lock */
vlc_mutex_t vfilter_lock; /**< video filter2 change lock */
vout_sys_t * p_sys; /**< system output method */
/**@}*/
/** \name Current display properties */
/**@{*/
uint16_t i_changes; /**< changes made to the thread.
\see \ref vout_changes */
float f_gamma; /**< gamma */
bool b_grayscale; /**< color or grayscale display */
bool b_info; /**< print additional information */
bool b_interface; /**< render interface */
bool b_scale; /**< allow picture scaling */
bool b_fullscreen; /**< toogle fullscreen display */
uint32_t render_time; /**< last picture render time */
unsigned int i_window_width; /**< video window width */
unsigned int i_window_height; /**< video window height */
unsigned int i_alignment; /**< video alignment in window */
unsigned int i_par_num; /**< monitor pixel aspect-ratio */
unsigned int i_par_den; /**< monitor pixel aspect-ratio */
struct vout_window_t *p_window; /**< window for embedded vout (if any) */
/**@}*/
/** \name Plugin used and shortcuts to access its capabilities */
/**@{*/
module_t * p_module;
int ( *pf_init ) ( vout_thread_t * );
void ( *pf_end ) ( vout_thread_t * );
int ( *pf_manage ) ( vout_thread_t * );
void ( *pf_render ) ( vout_thread_t *, picture_t * );
void ( *pf_display ) ( vout_thread_t *, picture_t * );
void ( *pf_swap ) ( vout_thread_t * ); /* OpenGL only */
int ( *pf_lock ) ( vout_thread_t * ); /* OpenGL only */
void ( *pf_unlock ) ( vout_thread_t * ); /* OpenGL only */
int ( *pf_control ) ( vout_thread_t *, int, va_list );
/**@}*/
/** \name Statistics
* These numbers are not supposed to be accurate, but are a
* good indication of the thread status */
/**@{*/
count_t c_fps_samples; /**< picture counts */
mtime_t p_fps_sample[VOUT_FPS_SAMPLES]; /**< FPS samples dates */
/**@}*/
/** \name Video heap and translation tables */
/**@{*/
int i_heap_size; /**< heap size */
picture_heap_t render; /**< rendered pictures */
picture_heap_t output; /**< direct buffers */
bool b_direct; /**< rendered are like direct ? */
filter_t *p_chroma; /**< translation tables */
video_format_t fmt_render; /* render format (from the decoder) */
video_format_t fmt_in; /* input (modified render) format */
video_format_t fmt_out; /* output format (for the video output) */
/**@}*/
/* Picture heap */
picture_t p_picture[2*VOUT_MAX_PICTURES+1]; /**< pictures */
/* Subpicture unit */
spu_t *p_spu;
/* Statistics */
count_t c_loops;
count_t c_pictures, c_late_pictures;
mtime_t display_jitter; /**< average deviation from the PTS */
count_t c_jitter_samples; /**< number of samples used
for the calculation of the
jitter */
/** delay created by internal caching */
int i_pts_delay;
/* Filter chain */
char *psz_filter_chain;
bool b_filter_change;
/* Video filter2 chain */
filter_chain_t *p_vf2_chain;
char *psz_vf2;
/* Misc */
bool b_snapshot; /**< take one snapshot on the next loop */
/* Video output configuration */
config_chain_t *p_cfg;
/* Show media title on videoutput */
bool b_title_show;
mtime_t i_title_timeout;
int i_title_position;
};
#define I_OUTPUTPICTURES p_vout->output.i_pictures
#define PP_OUTPUTPICTURE p_vout->output.pp_picture
#define I_RENDERPICTURES p_vout->render.i_pictures
#define PP_RENDERPICTURE p_vout->render.pp_picture
/** \defgroup vout_changes Flags for changes
* These flags are set in the vout_thread_t::i_changes field when another
* thread changed a variable
* @{
*/
/** b_info changed */
#define VOUT_INFO_CHANGE 0x0001
/** b_grayscale changed */
#define VOUT_GRAYSCALE_CHANGE 0x0002
/** b_interface changed */
#define VOUT_INTF_CHANGE 0x0004
/** b_scale changed */
#define VOUT_SCALE_CHANGE 0x0008
/** gamma changed */
#define VOUT_GAMMA_CHANGE 0x0010
/** b_cursor changed */
#define VOUT_CURSOR_CHANGE 0x0020
/** b_fullscreen changed */
#define VOUT_FULLSCREEN_CHANGE 0x0040
/** size changed */
#define VOUT_SIZE_CHANGE 0x0200
/** depth changed */
#define VOUT_DEPTH_CHANGE 0x0400
/** change chroma tables */
#define VOUT_CHROMA_CHANGE 0x0800
/** cropping parameters changed */
#define VOUT_CROP_CHANGE 0x1000
/** aspect ratio changed */
#define VOUT_ASPECT_CHANGE 0x2000
/** change/recreate picture buffers */
#define VOUT_PICTURE_BUFFERS_CHANGE 0x4000
/**@}*/
/* Alignment flags */
#define VOUT_ALIGN_LEFT 0x0001
#define VOUT_ALIGN_RIGHT 0x0002
#define VOUT_ALIGN_HMASK 0x0003
#define VOUT_ALIGN_TOP 0x0004
#define VOUT_ALIGN_BOTTOM 0x0008
#define VOUT_ALIGN_VMASK 0x000C
#define MAX_JITTER_SAMPLES 20
/*****************************************************************************
* Prototypes
*****************************************************************************/
/**
* This function will
* - returns a suitable vout (if requested by a non NULL p_fmt)
* - recycles an old vout (if given) by either destroying it or by saving it
* for latter usage.
*
* The purpose of this function is to avoid unnecessary creation/destruction of
* vout (and to allow optional vout reusing).
*
* You can call vout_Request on a vout created by vout_Create or by a previous
* call to vout_Request.
* You can release the returned value either by vout_Request or vout_Close()
* followed by a vlc_object_release() or shorter vout_CloseAndRelease()
*
* \param p_this a vlc object
* \param p_vout a vout candidate
* \param p_fmt the video format requested or NULL
* \return a vout if p_fmt is non NULL and the request is successfull, NULL
* otherwise
*/
#define vout_Request(a,b,c) __vout_Request(VLC_OBJECT(a),b,c)
VLC_EXPORT( vout_thread_t *, __vout_Request, ( vlc_object_t *p_this, vout_thread_t *p_vout, video_format_t *p_fmt ) );
/**
* This function will create a suitable vout for a given p_fmt. It will never
* reuse an already existing unused vout.
*
* You have to call either vout_Close or vout_Request on the returned value
* \param p_this a vlc object to which the returned vout will be attached
* \param p_fmt the video format requested
* \return a vout if the request is successfull, NULL otherwise
*/
#define vout_Create(a,b) __vout_Create(VLC_OBJECT(a),b)
VLC_EXPORT( vout_thread_t *, __vout_Create, ( vlc_object_t *p_this, video_format_t *p_fmt ) );
/**
* This function will close a vout created by vout_Create or vout_Request.
* The associated vout module is closed.
* Note: It is not released yet, you'll have to call vlc_object_release()
* or use the convenient vout_CloseAndRelease().
*
* \param p_vout the vout to close
*/
VLC_EXPORT( void, vout_Close, ( vout_thread_t *p_vout ) );
/**
* This function will close a vout created by vout_Create
* and then release it.
*
* \param p_vout the vout to close and release
*/
static inline void vout_CloseAndRelease( vout_thread_t *p_vout )
{
vout_Close( p_vout );
vlc_object_release( p_vout );
}
/* */
VLC_EXPORT( int, vout_ChromaCmp, ( uint32_t, uint32_t ) );
VLC_EXPORT( picture_t *, vout_CreatePicture, ( vout_thread_t *, bool, bool, unsigned int ) );
VLC_EXPORT( void, vout_InitFormat, ( video_frame_format_t *, uint32_t, int, int, int ) );
VLC_EXPORT( void, vout_DestroyPicture, ( vout_thread_t *, picture_t * ) );
VLC_EXPORT( void, vout_DisplayPicture, ( vout_thread_t *, picture_t * ) );
VLC_EXPORT( void, vout_DatePicture, ( vout_thread_t *, picture_t *, mtime_t ) );
VLC_EXPORT( void, vout_LinkPicture, ( vout_thread_t *, picture_t * ) );
VLC_EXPORT( void, vout_UnlinkPicture, ( vout_thread_t *, picture_t * ) );
VLC_EXPORT( void, vout_PlacePicture, ( vout_thread_t *, unsigned int, unsigned int, unsigned int *, unsigned int *, unsigned int *, unsigned int * ) );
/* DO NOT use vout_RenderPicture unless you are in src/video_ouput */
picture_t * vout_RenderPicture ( vout_thread_t *, picture_t *,
subpicture_t * );
/* DO NOT use vout_CountPictureAvailable unless your are in src/input/dec.c (no exception) */
int vout_CountPictureAvailable( vout_thread_t * );
VLC_EXPORT( int, vout_vaControlDefault, ( vout_thread_t *, int, va_list ) );
VLC_EXPORT( void *, vout_RequestWindow, ( vout_thread_t *, int *, int *, unsigned int *, unsigned int * ) );
VLC_EXPORT( void, vout_ReleaseWindow, ( vout_thread_t *, void * ) );
VLC_EXPORT( int, vout_ControlWindow, ( vout_thread_t *, void *, int, va_list ) );
void vout_IntfInit( vout_thread_t * );
VLC_EXPORT( int, vout_Snapshot, ( vout_thread_t *p_vout, picture_t *p_pic ) );
VLC_EXPORT( void, vout_EnableFilter, ( vout_thread_t *, char *,bool , bool ) );
static inline int vout_vaControl( vout_thread_t *p_vout, int i_query,
va_list args )
{
if( p_vout->pf_control )
return p_vout->pf_control( p_vout, i_query, args );
else
return VLC_EGENERIC;
}
static inline int vout_Control( vout_thread_t *p_vout, int i_query, ... )
{
va_list args;
int i_result;
va_start( args, i_query );
i_result = vout_vaControl( p_vout, i_query, args );
va_end( args );
return i_result;
}
enum output_query_e
{
VOUT_GET_SIZE, /* arg1= unsigned int*, arg2= unsigned int*, res= */
VOUT_SET_SIZE, /* arg1= unsigned int, arg2= unsigned int, res= */
VOUT_SET_STAY_ON_TOP, /* arg1= bool res= */
VOUT_REPARENT,
VOUT_SNAPSHOT,
VOUT_CLOSE,
VOUT_SET_FOCUS, /* arg1= bool res= */
VOUT_SET_VIEWPORT, /* arg1= view rect, arg2=clip rect, res= */
VOUT_REDRAW_RECT, /* arg1= area rect, res= */
};
typedef struct snapshot_t {
char *p_data; /* Data area */
int i_width; /* In pixels */
int i_height; /* In pixels */
int i_datasize; /* In bytes */
mtime_t date; /* Presentation time */
} snapshot_t;
/**@}*/
#endif /* _VLC_VIDEO_H */
