Collaboration diagram for LibVLC video controls:

Enumerations
enum	libvlc_video_logo_option_t { libvlc_logo_enable , libvlc_logo_file , libvlc_logo_x , libvlc_logo_y , libvlc_logo_delay , libvlc_logo_repeat , libvlc_logo_opacity , libvlc_logo_position }
	option values for libvlc_video_{get,set}_logo_{int,string} More...

enum	libvlc_video_adjust_option_t { libvlc_adjust_Enable = 0 , libvlc_adjust_Contrast , libvlc_adjust_Brightness , libvlc_adjust_Hue , libvlc_adjust_Saturation , libvlc_adjust_Gamma }
	option values for libvlc_video_{get,set}_adjust_{int,float,bool} More...

Functions
LIBVLC_API void	libvlc_toggle_fullscreen (libvlc_media_player_t *p_mi)
	Toggle fullscreen status on non-embedded video outputs.

LIBVLC_API void	libvlc_set_fullscreen (libvlc_media_player_t *p_mi, bool b_fullscreen)
	Enable or disable fullscreen.

LIBVLC_API bool	libvlc_get_fullscreen (libvlc_media_player_t *p_mi)
	Get current fullscreen status.

LIBVLC_API void	libvlc_video_set_key_input (libvlc_media_player_t *p_mi, unsigned on)
	Enable or disable key press events handling, according to the LibVLC hotkeys configuration.

LIBVLC_API void	libvlc_video_set_mouse_input (libvlc_media_player_t *p_mi, unsigned on)
	Enable or disable mouse click events handling.

LIBVLC_API int	libvlc_video_get_size (libvlc_media_player_t p_mi, unsigned num, unsigned px, unsigned *py)
	Get the pixel dimensions of a video.

LIBVLC_API int	libvlc_video_get_cursor (libvlc_media_player_t p_mi, unsigned num, int px, int *py)
	Get the mouse pointer coordinates over a video.

LIBVLC_API float	libvlc_video_get_scale (libvlc_media_player_t *p_mi)
	Get the current video scaling factor.

LIBVLC_API void	libvlc_video_set_scale (libvlc_media_player_t *p_mi, float f_factor)
	Set the video scaling factor.

LIBVLC_API char *	libvlc_video_get_aspect_ratio (libvlc_media_player_t *p_mi)
	Get current video aspect ratio.

LIBVLC_API void	libvlc_video_set_aspect_ratio (libvlc_media_player_t p_mi, const char psz_aspect)
	Set new video aspect ratio.

LIBVLC_API libvlc_video_fit_mode_t	libvlc_video_get_display_fit (libvlc_media_player_t *p_mi)
	Get current video display fit mode.

LIBVLC_API void	libvlc_video_set_display_fit (libvlc_media_player_t *p_mi, libvlc_video_fit_mode_t fit)
	Set new video display fit.

LIBVLC_API libvlc_video_viewpoint_t *	libvlc_video_new_viewpoint (void)
	Create a video viewpoint structure.

LIBVLC_API int	libvlc_video_update_viewpoint (libvlc_media_player_t p_mi, const libvlc_video_viewpoint_t p_viewpoint, bool b_absolute)
	Update the video viewpoint information.

LIBVLC_API int64_t	libvlc_video_get_spu_delay (libvlc_media_player_t *p_mi)
	Get the current subtitle delay.

LIBVLC_API float	libvlc_video_get_spu_text_scale (libvlc_media_player_t *p_mi)
	Get the current subtitle text scale.

LIBVLC_API void	libvlc_video_set_spu_text_scale (libvlc_media_player_t *p_mi, float f_scale)
	Set the subtitle text scale.

LIBVLC_API int	libvlc_video_set_spu_delay (libvlc_media_player_t *p_mi, int64_t i_delay)
	Set the subtitle delay.

LIBVLC_API int	libvlc_media_player_get_full_title_descriptions (libvlc_media_player_t p_mi, libvlc_title_description_t **titles)
	Get the full description of available titles.

LIBVLC_API void	libvlc_title_descriptions_release (libvlc_title_description_t **p_titles, unsigned i_count)
	Release a title description.

LIBVLC_API int	libvlc_media_player_get_full_chapter_descriptions (libvlc_media_player_t p_mi, int i_chapters_of_title, libvlc_chapter_description_t **pp_chapters)
	Get the full description of available chapters.

LIBVLC_API void	libvlc_chapter_descriptions_release (libvlc_chapter_description_t **p_chapters, unsigned i_count)
	Release a chapter description.

LIBVLC_API void	libvlc_video_set_crop_ratio (libvlc_media_player_t *mp, unsigned num, unsigned den)
	Set/unset the video crop ratio.

LIBVLC_API void	libvlc_video_set_crop_window (libvlc_media_player_t *mp, unsigned x, unsigned y, unsigned width, unsigned height)
	Set the video crop window.

LIBVLC_API void	libvlc_video_set_crop_border (libvlc_media_player_t *mp, unsigned left, unsigned right, unsigned top, unsigned bottom)
	Set the video crop borders.

LIBVLC_API int	libvlc_video_get_teletext (libvlc_media_player_t *p_mi)
	Get current teletext page requested or 0 if it's disabled.

LIBVLC_API void	libvlc_video_set_teletext (libvlc_media_player_t *p_mi, int i_page)
	Set new teletext page to retrieve.

LIBVLC_API void	libvlc_video_set_teletext_transparency (libvlc_media_player_t *p_mi, bool transparent)
	Set teletext background transparency.

LIBVLC_API bool	libvlc_video_get_teletext_transparency (libvlc_media_player_t *p_mi)
	Get teletext background transparency.

LIBVLC_API int	libvlc_video_take_snapshot (libvlc_media_player_t p_mi, unsigned num, const char psz_filepath, unsigned int i_width, unsigned int i_height)
	Take a snapshot of the current video window.

LIBVLC_API void	libvlc_video_set_deinterlace (libvlc_media_player_t p_mi, int deinterlace, const char psz_mode)
	Enable or disable deinterlace filter.

LIBVLC_API int	libvlc_video_get_marquee_int (libvlc_media_player_t *p_mi, unsigned option)
	Get an integer marquee option value.

LIBVLC_API void	libvlc_video_set_marquee_int (libvlc_media_player_t *p_mi, unsigned option, int i_val)
	Enable, disable or set an integer marquee option.

LIBVLC_API void	libvlc_video_set_marquee_string (libvlc_media_player_t p_mi, unsigned option, const char psz_text)
	Set a marquee string option.

LIBVLC_API int	libvlc_video_get_logo_int (libvlc_media_player_t *p_mi, unsigned option)
	Get integer logo option.

LIBVLC_API void	libvlc_video_set_logo_int (libvlc_media_player_t *p_mi, unsigned option, int value)
	Set logo option as integer.

LIBVLC_API void	libvlc_video_set_logo_string (libvlc_media_player_t p_mi, unsigned option, const char psz_value)
	Set logo option as string.

LIBVLC_API int	libvlc_video_get_adjust_int (libvlc_media_player_t *p_mi, unsigned option)
	Get integer adjust option.

LIBVLC_API void	libvlc_video_set_adjust_int (libvlc_media_player_t *p_mi, unsigned option, int value)
	Set adjust option as integer.

LIBVLC_API float	libvlc_video_get_adjust_float (libvlc_media_player_t *p_mi, unsigned option)
	Get float adjust option.

LIBVLC_API void	libvlc_video_set_adjust_float (libvlc_media_player_t *p_mi, unsigned option, float value)
	Set adjust option as float.

Detailed Description

Enumeration Type Documentation

◆ libvlc_video_adjust_option_t

enum libvlc_video_adjust_option_t

option values for libvlc_video_{get,set}_adjust_{int,float,bool}

Enumerator
libvlc_adjust_Enable
libvlc_adjust_Contrast
libvlc_adjust_Brightness
libvlc_adjust_Hue
libvlc_adjust_Saturation
libvlc_adjust_Gamma

◆ libvlc_video_logo_option_t

enum libvlc_video_logo_option_t

option values for libvlc_video_{get,set}_logo_{int,string}

Enumerator
libvlc_logo_enable
libvlc_logo_file	string argument, "file,d,t;file,d,t;..."
libvlc_logo_x
libvlc_logo_y
libvlc_logo_delay
libvlc_logo_repeat
libvlc_logo_opacity
libvlc_logo_position

Function Documentation

◆ libvlc_chapter_descriptions_release()

LIBVLC_API void libvlc_chapter_descriptions_release	(	libvlc_chapter_description_t **	p_chapters,
		unsigned	i_count
	)

Release a chapter description.

Version: LibVLC 3.0.0 and later

Parameters

p_chapters	chapter description array to release
i_count	number of chapter descriptions to release

◆ libvlc_get_fullscreen()

LIBVLC_API bool libvlc_get_fullscreen ( libvlc_media_player_t * p_mi )

Get current fullscreen status.

Parameters

p_mi	the media player

Returns: the fullscreen status (boolean)

Return values

false	media player is windowed
true	media player is in fullscreen mode

◆ libvlc_media_player_get_full_chapter_descriptions()

LIBVLC_API int libvlc_media_player_get_full_chapter_descriptions	(	libvlc_media_player_t *	p_mi,
		int	i_chapters_of_title,
		libvlc_chapter_description_t ***	pp_chapters
	)

Get the full description of available chapters.

Version: LibVLC 3.0.0 and later.

Parameters

	p_mi	the media player
	i_chapters_of_title	index of the title to query for chapters (uses current title if set to -1)
[out]	pp_chapters	address to store an allocated array of chapter descriptions descriptions (must be freed with libvlc_chapter_descriptions_release() by the caller)

Returns: the number of chapters (-1 on error)

◆ libvlc_media_player_get_full_title_descriptions()

LIBVLC_API int libvlc_media_player_get_full_title_descriptions	(	libvlc_media_player_t *	p_mi,
		libvlc_title_description_t ***	titles
	)

Get the full description of available titles.

Version: LibVLC 3.0.0 and later.

Parameters

	p_mi	the media player
[out]	titles	address to store an allocated array of title descriptions descriptions (must be freed with libvlc_title_descriptions_release() by the caller)

Returns: the number of titles (-1 on error)

◆ libvlc_set_fullscreen()

LIBVLC_API void libvlc_set_fullscreen	(	libvlc_media_player_t *	p_mi,
		bool	b_fullscreen
	)

Enable or disable fullscreen.

Warning: With most window managers, only a top-level windows can be in full-screen mode. Hence, this function will not operate properly if libvlc_media_player_set_xwindow() was used to embed the video in a non-top-level window. In that case, the embedding window must be reparented to the root window before fullscreen mode is enabled. You will want to reparent it back to its normal parent when disabling fullscreen.

Note: This setting applies to any and all current or future active video tracks and windows for the given media player. The choice of fullscreen output for each window is left to the operating system.

Parameters

p_mi	the media player
b_fullscreen	boolean for fullscreen status

◆ libvlc_title_descriptions_release()

LIBVLC_API void libvlc_title_descriptions_release	(	libvlc_title_description_t **	p_titles,
		unsigned	i_count
	)

Release a title description.

Version: LibVLC 3.0.0 and later

Parameters

p_titles	title description array to release
i_count	number of title descriptions to release

◆ libvlc_toggle_fullscreen()

LIBVLC_API void libvlc_toggle_fullscreen ( libvlc_media_player_t * p_mi )

Toggle fullscreen status on non-embedded video outputs.

Warning: The same limitations applies to this function as to libvlc_set_fullscreen().

Parameters

p_mi	the media player

◆ libvlc_video_get_adjust_float()

LIBVLC_API float libvlc_video_get_adjust_float	(	libvlc_media_player_t *	p_mi,
		unsigned	option
	)

Get float adjust option.

Parameters

p_mi	libvlc media player instance
option	adjust option to get, values of libvlc_video_adjust_option_t

Version: LibVLC 1.1.1 and later.

◆ libvlc_video_get_adjust_int()

LIBVLC_API int libvlc_video_get_adjust_int	(	libvlc_media_player_t *	p_mi,
		unsigned	option
	)

Get integer adjust option.

Parameters

p_mi	libvlc media player instance
option	adjust option to get, values of libvlc_video_adjust_option_t

Version: LibVLC 1.1.1 and later.

◆ libvlc_video_get_aspect_ratio()

LIBVLC_API char * libvlc_video_get_aspect_ratio ( libvlc_media_player_t * p_mi )

Get current video aspect ratio.

Parameters

p_mi	the media player

Returns: the video aspect ratio or NULL if unspecified (the result must be released with free() or libvlc_free()).

◆ libvlc_video_get_cursor()

LIBVLC_API int libvlc_video_get_cursor	(	libvlc_media_player_t *	p_mi,
		unsigned	num,
		int *	px,
		int *	py
	)

Get the mouse pointer coordinates over a video.

Coordinates are expressed in terms of the decoded video resolution, not in terms of pixels on the screen/viewport (to get the latter, you can query your windowing system directly).

Either of the coordinates may be negative or larger than the corresponding dimension of the video, if the cursor is outside the rendering area.

Warning: The coordinates may be out-of-date if the pointer is not located on the video rendering area. LibVLC does not track the pointer if it is outside of the video widget.

Note: LibVLC does not support multiple pointers (it does of course support multiple input devices sharing the same pointer) at the moment.

Parameters

	p_mi	media player
	num	number of the video (starting from, and most commonly 0)
[out]	px	pointer to get the abscissa
[out]	py	pointer to get the ordinate

Returns: 0 on success, -1 if the specified video does not exist

◆ libvlc_video_get_display_fit()

LIBVLC_API libvlc_video_fit_mode_t libvlc_video_get_display_fit ( libvlc_media_player_t * p_mi )

Get current video display fit mode.

Version: LibVLC 4.0.0 or later

Parameters

p_mi	the media player

Returns: the video display fit mode.

◆ libvlc_video_get_logo_int()

LIBVLC_API int libvlc_video_get_logo_int	(	libvlc_media_player_t *	p_mi,
		unsigned	option
	)

Get integer logo option.

Parameters

p_mi	libvlc media player instance
option	logo option to get, values of libvlc_video_logo_option_t

◆ libvlc_video_get_marquee_int()

LIBVLC_API int libvlc_video_get_marquee_int	(	libvlc_media_player_t *	p_mi,
		unsigned	option
	)

Get an integer marquee option value.

Parameters

p_mi	libvlc media player
option	marq option to get

See also: libvlc_video_marquee_option_t

◆ libvlc_video_get_scale()

LIBVLC_API float libvlc_video_get_scale ( libvlc_media_player_t * p_mi )

Get the current video scaling factor.

◆ libvlc_video_get_size()

LIBVLC_API int libvlc_video_get_size	(	libvlc_media_player_t *	p_mi,
		unsigned	num,
		unsigned *	px,
		unsigned *	py
	)

Get the pixel dimensions of a video.

Parameters

	p_mi	media player
	num	number of the video (starting from, and most commonly 0)
[out]	px	pointer to get the pixel width
[out]	py	pointer to get the pixel height

Returns: 0 on success, -1 if the specified video does not exist

◆ libvlc_video_get_spu_delay()

LIBVLC_API int64_t libvlc_video_get_spu_delay ( libvlc_media_player_t * p_mi )

Get the current subtitle delay.

Positive values means subtitles are being displayed later, negative values earlier.

Parameters

p_mi	media player

Returns: time (in microseconds) the display of subtitles is being delayed

Version: LibVLC 2.0.0 or later

◆ libvlc_video_get_spu_text_scale()

LIBVLC_API float libvlc_video_get_spu_text_scale ( libvlc_media_player_t * p_mi )

Get the current subtitle text scale.

The scale factor is expressed as a percentage of the default size, where 1.0 represents 100 percent.

Parameters

p_mi	media player

Version: LibVLC 4.0.0 or later

◆ libvlc_video_get_teletext()

LIBVLC_API int libvlc_video_get_teletext ( libvlc_media_player_t * p_mi )

Get current teletext page requested or 0 if it's disabled.

Teletext is disabled by default, call libvlc_video_set_teletext() to enable it.

Parameters

p_mi	the media player

Returns: the current teletext page requested.

◆ libvlc_video_get_teletext_transparency()

LIBVLC_API bool libvlc_video_get_teletext_transparency ( libvlc_media_player_t * p_mi )

Get teletext background transparency.

Parameters

p_mi	the media player

Return values

true	teletext has transparent background
false	teletext has opaque background

Version: LibVLC 4.0.0 or later

◆ libvlc_video_new_viewpoint()

LIBVLC_API libvlc_video_viewpoint_t * libvlc_video_new_viewpoint ( void )

Create a video viewpoint structure.

Version: LibVLC 3.0.0 and later

Returns: video viewpoint or NULL (the result must be released with free()).

◆ libvlc_video_set_adjust_float()

LIBVLC_API void libvlc_video_set_adjust_float	(	libvlc_media_player_t *	p_mi,
		unsigned	option,
		float	value
	)

Set adjust option as float.

Options that take a different type value are ignored.

Parameters

p_mi	libvlc media player instance
option	adjust option to set, values of libvlc_video_adjust_option_t
value	adjust option value

Version: LibVLC 1.1.1 and later.

◆ libvlc_video_set_adjust_int()

LIBVLC_API void libvlc_video_set_adjust_int	(	libvlc_media_player_t *	p_mi,
		unsigned	option,
		int	value
	)

Set adjust option as integer.

Options that take a different type value are ignored. Passing libvlc_adjust_enable as option value has the side effect of starting (arg !0) or stopping (arg 0) the adjust filter.

Parameters

p_mi	libvlc media player instance
option	adjust option to set, values of libvlc_video_adjust_option_t
value	adjust option value

Version: LibVLC 1.1.1 and later.

◆ libvlc_video_set_aspect_ratio()

LIBVLC_API void libvlc_video_set_aspect_ratio	(	libvlc_media_player_t *	p_mi,
		const char *	psz_aspect
	)

Set new video aspect ratio.

Parameters

p_mi	the media player
psz_aspect	new video aspect-ratio or NULL to reset to source aspect ratio

Note: Invalid aspect ratios are ignored.

◆ libvlc_video_set_crop_border()

LIBVLC_API void libvlc_video_set_crop_border	(	libvlc_media_player_t *	mp,
		unsigned	left,
		unsigned	right,
		unsigned	top,
		unsigned	bottom
	)

Set the video crop borders.

This function selects the size of video edges to be cropped out.

To unset the video crop borders, set all borders to zero.

A call to this function overrides any previous call to any of libvlc_video_set_crop_ratio(), libvlc_video_set_crop_border() and/or libvlc_video_set_crop_window().

Parameters

mp	the media player
left	number of sample columns to crop on the left
right	number of sample columns to crop on the right
top	number of sample rows to crop on the top
bottom	number of sample rows to corp on the bottom

Version: LibVLC 4.0.0 and later

◆ libvlc_video_set_crop_ratio()

LIBVLC_API void libvlc_video_set_crop_ratio	(	libvlc_media_player_t *	mp,
		unsigned	num,
		unsigned	den
	)

Set/unset the video crop ratio.

This function forces a crop ratio on any and all video tracks rendered by the media player. If the display aspect ratio of a video does not match the crop ratio, either the top and bottom, or the left and right of the video will be cut out to fit the crop ratio.

For instance, a ratio of 1:1 will force the video to a square shape.

To disable video crop, set a crop ratio with zero as denominator.

A call to this function overrides any previous call to any of libvlc_video_set_crop_ratio(), libvlc_video_set_crop_border() and/or libvlc_video_set_crop_window().

See also: libvlc_video_set_aspect_ratio()

Parameters

mp	the media player
num	crop ratio numerator (ignored if denominator is 0)
den	crop ratio denominator (or 0 to unset the crop ratio)

Version: LibVLC 4.0.0 and later

◆ libvlc_video_set_crop_window()

LIBVLC_API void libvlc_video_set_crop_window	(	libvlc_media_player_t *	mp,
		unsigned	x,
		unsigned	y,
		unsigned	width,
		unsigned	height
	)

Set the video crop window.

This function selects a sub-rectangle of video to show. Any pixels outside the rectangle will not be shown.

To unset the video crop window, use libvlc_video_set_crop_ratio() or libvlc_video_set_crop_border().

A call to this function overrides any previous call to any of libvlc_video_set_crop_ratio(), libvlc_video_set_crop_border() and/or libvlc_video_set_crop_window().

Parameters

mp	the media player
x	abscissa (i.e. leftmost sample column offset) of the crop window
y	ordinate (i.e. topmost sample row offset) of the crop window
width	sample width of the crop window (cannot be zero)
height	sample height of the crop window (cannot be zero)

Version: LibVLC 4.0.0 and later

◆ libvlc_video_set_deinterlace()

LIBVLC_API void libvlc_video_set_deinterlace	(	libvlc_media_player_t *	p_mi,
		int	deinterlace,
		const char *	psz_mode
	)

Enable or disable deinterlace filter.

Parameters

p_mi	libvlc media player
deinterlace	state -1: auto (default), 0: disabled, 1: enabled
psz_mode	type of deinterlace filter, NULL for current/default filter

Version: LibVLC 4.0.0 and later

◆ libvlc_video_set_display_fit()

LIBVLC_API void libvlc_video_set_display_fit	(	libvlc_media_player_t *	p_mi,
		libvlc_video_fit_mode_t	fit
	)

Set new video display fit.

Version: LibVLC 4.0.0 or later

Parameters

p_mi	the media player
fit	new display fit mode

Note: Invalid fit mode are ignored.

◆ libvlc_video_set_key_input()

LIBVLC_API void libvlc_video_set_key_input	(	libvlc_media_player_t *	p_mi,
		unsigned	on
	)

Enable or disable key press events handling, according to the LibVLC hotkeys configuration.

By default and for historical reasons, keyboard events are handled by the LibVLC video widget.

Note: On X11, there can be only one subscriber for key press and mouse click events per window. If your application has subscribed to those events for the X window ID of the video widget, then LibVLC will not be able to handle key presses and mouse clicks in any case.

Warning: This function is only implemented for X11 and Win32 at the moment.

Parameters

p_mi	the media player
on	true to handle key press events, false to ignore them.

◆ libvlc_video_set_logo_int()

LIBVLC_API void libvlc_video_set_logo_int	(	libvlc_media_player_t *	p_mi,
		unsigned	option,
		int	value
	)

Set logo option as integer.

Options that take a different type value are ignored. Passing libvlc_logo_enable as option value has the side effect of starting (arg !0) or stopping (arg 0) the logo filter.

Parameters

p_mi	libvlc media player instance
option	logo option to set, values of libvlc_video_logo_option_t
value	logo option value

◆ libvlc_video_set_logo_string()

LIBVLC_API void libvlc_video_set_logo_string	(	libvlc_media_player_t *	p_mi,
		unsigned	option,
		const char *	psz_value
	)

Set logo option as string.

Options that take a different type value are ignored.

Parameters

p_mi	libvlc media player instance
option	logo option to set, values of libvlc_video_logo_option_t
psz_value	logo option value

◆ libvlc_video_set_marquee_int()

LIBVLC_API void libvlc_video_set_marquee_int	(	libvlc_media_player_t *	p_mi,
		unsigned	option,
		int	i_val
	)

Enable, disable or set an integer marquee option.

Setting libvlc_marquee_Enable has the side effect of enabling (arg !0) or disabling (arg 0) the marq filter.

Parameters

p_mi	libvlc media player
option	marq option to set

See also: libvlc_video_marquee_option_t

Parameters

i_val marq option value

◆ libvlc_video_set_marquee_string()

LIBVLC_API void libvlc_video_set_marquee_string	(	libvlc_media_player_t *	p_mi,
		unsigned	option,
		const char *	psz_text
	)

Set a marquee string option.

Parameters

p_mi	libvlc media player
option	marq option to set

See also: libvlc_video_marquee_option_t

Parameters

psz_text marq option value

◆ libvlc_video_set_mouse_input()

LIBVLC_API void libvlc_video_set_mouse_input	(	libvlc_media_player_t *	p_mi,
		unsigned	on
	)

Enable or disable mouse click events handling.

By default, those events are handled. This is needed for DVD menus to work, as well as a few video filters such as "puzzle".

See also: libvlc_video_set_key_input().

Warning: This function is only implemented for X11 and Win32 at the moment.

Parameters

p_mi	the media player
on	true to handle mouse click events, false to ignore them.

◆ libvlc_video_set_scale()

LIBVLC_API void libvlc_video_set_scale	(	libvlc_media_player_t *	p_mi,
		float	f_factor
	)

Set the video scaling factor.

That is the ratio of the number of pixels on screen to the number of pixels in the original decoded video in each dimension. Zero is a special value; it will adjust the video to the output window/drawable (in windowed mode) or the entire screen.

Note that not all video outputs support scaling.

Parameters

p_mi	the media player
f_factor	the scaling factor, or zero

◆ libvlc_video_set_spu_delay()

LIBVLC_API int libvlc_video_set_spu_delay	(	libvlc_media_player_t *	p_mi,
		int64_t	i_delay
	)

Set the subtitle delay.

This affects the timing of when the subtitle will be displayed. Positive values result in subtitles being displayed later, while negative values will result in subtitles being displayed earlier.

The subtitle delay will be reset to zero each time the media changes.

Parameters

p_mi	media player
i_delay	time (in microseconds) the display of subtitles should be delayed

Returns: 0 on success, -1 on error

Version: LibVLC 2.0.0 or later

◆ libvlc_video_set_spu_text_scale()

LIBVLC_API void libvlc_video_set_spu_text_scale	(	libvlc_media_player_t *	p_mi,
		float	f_scale
	)

Set the subtitle text scale.

The scale factor is expressed as a percentage of the default size, where 1.0 represents 100 percent.

A value of 0.5 would result in text half the normal size, and a value of 2.0 would result in text twice the normal size.

The minimum acceptable value for the scale factor is 0.1.

The maximum is 5.0 (five times normal size).

Parameters

p_mi	media player
f_scale	scale factor in the range [0.1;5.0] (default: 1.0)

Version: LibVLC 4.0.0 or later

◆ libvlc_video_set_teletext()

LIBVLC_API void libvlc_video_set_teletext	(	libvlc_media_player_t *	p_mi,
		int	i_page
	)

Set new teletext page to retrieve.

This function can also be used to send a teletext key.

Parameters

p_mi	the media player
i_page	teletex page number requested. This value can be 0 to disable teletext, a number in the range ]0;1000[ to show the requested page, or a libvlc_teletext_key_t. 100 is the default teletext page.

◆ libvlc_video_set_teletext_transparency()

LIBVLC_API void libvlc_video_set_teletext_transparency	(	libvlc_media_player_t *	p_mi,
		bool	transparent
	)

Set teletext background transparency.

Parameters

p_mi	the media player
transparent	whether background should be transparent.

Version: LibVLC 4.0.0 or later

◆ libvlc_video_take_snapshot()

LIBVLC_API int libvlc_video_take_snapshot	(	libvlc_media_player_t *	p_mi,
		unsigned	num,
		const char *	psz_filepath,
		unsigned int	i_width,
		unsigned int	i_height
	)

Take a snapshot of the current video window.

If i_width AND i_height is 0, original size is used. If i_width XOR i_height is 0, original aspect-ratio is preserved.

Parameters

p_mi	media player instance
num	number of video output (typically 0 for the first/only one)
psz_filepath	the path of a file or a folder to save the screenshot into
i_width	the snapshot's width
i_height	the snapshot's height

Returns: 0 on success, -1 if the video was not found

◆ libvlc_video_update_viewpoint()

LIBVLC_API int libvlc_video_update_viewpoint	(	libvlc_media_player_t *	p_mi,
		const libvlc_video_viewpoint_t *	p_viewpoint,
		bool	b_absolute
	)

Update the video viewpoint information.

Note: It is safe to call this function before the media player is started.

Version: LibVLC 3.0.0 and later

Parameters

p_mi	the media player
p_viewpoint	video viewpoint allocated via libvlc_video_new_viewpoint()
b_absolute	if true replace the old viewpoint with the new one. If false, increase/decrease it.

Returns: -1 in case of error, 0 otherwise

Note: the values are set asynchronously, it will be used by the next frame displayed.

Enumerations

Functions

Detailed Description

Enumeration Type Documentation

◆ libvlc_video_adjust_option_t

◆ libvlc_video_logo_option_t

Function Documentation

◆ libvlc_chapter_descriptions_release()

◆ libvlc_get_fullscreen()

◆ libvlc_media_player_get_full_chapter_descriptions()

◆ libvlc_media_player_get_full_title_descriptions()

◆ libvlc_set_fullscreen()

◆ libvlc_title_descriptions_release()

◆ libvlc_toggle_fullscreen()

◆ libvlc_video_get_adjust_float()

◆ libvlc_video_get_adjust_int()

◆ libvlc_video_get_aspect_ratio()

◆ libvlc_video_get_cursor()

◆ libvlc_video_get_display_fit()

◆ libvlc_video_get_logo_int()

◆ libvlc_video_get_marquee_int()

◆ libvlc_video_get_scale()

◆ libvlc_video_get_size()

◆ libvlc_video_get_spu_delay()

◆ libvlc_video_get_spu_text_scale()

◆ libvlc_video_get_teletext()

◆ libvlc_video_get_teletext_transparency()

◆ libvlc_video_new_viewpoint()

◆ libvlc_video_set_adjust_float()

◆ libvlc_video_set_adjust_int()

◆ libvlc_video_set_aspect_ratio()

◆ libvlc_video_set_crop_border()

◆ libvlc_video_set_crop_ratio()

◆ libvlc_video_set_crop_window()

◆ libvlc_video_set_deinterlace()

◆ libvlc_video_set_display_fit()

◆ libvlc_video_set_key_input()

◆ libvlc_video_set_logo_int()

◆ libvlc_video_set_logo_string()

◆ libvlc_video_set_marquee_int()

◆ libvlc_video_set_marquee_string()

◆ libvlc_video_set_mouse_input()

◆ libvlc_video_set_scale()

◆ libvlc_video_set_spu_delay()

◆ libvlc_video_set_spu_text_scale()

◆ libvlc_video_set_teletext()

◆ libvlc_video_set_teletext_transparency()

◆ libvlc_video_take_snapshot()

◆ libvlc_video_update_viewpoint()