filter_t Struct Reference

Structure describing a filter. More...

Collaboration diagram for filter_t:

Data Fields
struct vlc_common_members	obj
module_t *	p_module
filter_sys_t *	p_sys
es_format_t	fmt_in
es_format_t	fmt_out
bool	b_allow_fmt_out_change
const char *	psz_name
config_chain_t *	p_cfg
union {
picture_t *(*   pf_video_filter )(filter_t *, picture_t *)
	Filter a picture (video filter) More...
block_t *(*   pf_audio_filter )(filter_t *, block_t *)
	Filter an audio block (audio filter) More...
void(*   pf_video_blend )(filter_t *, picture_t       *, const picture_t *, int, int,       int)
	Blend a subpicture onto a picture (blend) More...
subpicture_t *(*   pf_sub_source )(filter_t *, mtime_t)
	Generate a subpicture (sub source) More...
subpicture_t *(*   pf_sub_filter )(filter_t *, subpicture_t *)
	Filter a subpicture (sub filter) More...
int(*   pf_render )(filter_t       *, subpicture_region_t       *, subpicture_region_t       *, const vlc_fourcc_t *)
	Render text (text render) More...
};
union {
block_t *(*   pf_audio_drain )(filter_t *)
	Drain (audio filter) More...
};
void(*	pf_flush )(filter_t *)
	Flush. More...
void(*	pf_change_viewpoint )(filter_t *, const vlc_viewpoint_t *)
	Change viewpoint. More...
union {
int(*   pf_video_mouse )(filter_t *, struct       vlc_mouse_t *, const struct       vlc_mouse_t *p_old, const       struct vlc_mouse_t *p_new)
	Filter mouse state (video filter). More...
int(*   pf_sub_mouse )(filter_t *, const struct       vlc_mouse_t *p_old, const       struct vlc_mouse_t *p_new,       const video_format_t *)
};
int(*	pf_get_attachments )(filter_t *, input_attachment_t ***, int *)
filter_owner_t	owner

Detailed Description

Structure describing a filter.

Warning

BIG FAT WARNING : the code relies on the first 4 members of filter_t and decoder_t to be the same, so if you have anything to add, do it at the end of the structure.

Field Documentation

@171

union { ... }

@173

union { ... }

@175

union { ... }

b_allow_fmt_out_change

bool filter_t::b_allow_fmt_out_change

Referenced by filter_chain_AppendInner().

fmt_in

es_format_t filter_t::fmt_in

Referenced by aout_FiltersDrain(), aout_FiltersPlay(), AppendFilter(), CreateFilter(), DeleteFilter(), filter_chain_AppendInner(), filter_ConfigureBlend(), filter_NewBlend(), ImageConvert(), ImageRead(), ImageWrite(), picture_BlendSubpicture(), and SpuRenderRegion().

fmt_out

es_format_t filter_t::fmt_out

Referenced by AppendFilter(), CreateFilter(), DeleteFilter(), filter_chain_AppendInner(), filter_chain_GetFmtOut(), filter_chain_VideoBufferNew(), filter_ConfigureBlend(), filter_new_picture(), filter_NewBlend(), ImageConvert(), ImageRead(), ImageWrite(), picture_BlendSubpicture(), SpuRenderRegion(), and VideoBufferNew().

obj

struct vlc_common_members filter_t::obj

Referenced by aout_filter_RequestVout().

owner

filter_owner_t filter_t::owner

Referenced by aout_filter_RequestVout(), CreateFilter(), filter_chain_AppendInner(), filter_chain_VideoBufferNew(), filter_NewPicture(), filter_NewSubpicture(), SubSourceClean(), SubSourceInit(), and VideoBufferNew().

p_cfg

config_chain_t* filter_t::p_cfg

Referenced by CreateFilter(), and filter_chain_AppendInner().

p_module

module_t* filter_t::p_module

Referenced by aout_FiltersPipelineDestroy(), AppendFilter(), CreateFilter(), DeleteFilter(), filter_Blend(), filter_chain_AppendInner(), filter_chain_DeleteFilter(), filter_ConfigureBlend(), filter_DeleteBlend(), filter_NewBlend(), and SpuRenderRegion().

p_sys

filter_sys_t* filter_t::p_sys

pf_audio_drain

block_t*(* filter_t::pf_audio_drain) (filter_t *)

Drain (audio filter)

Referenced by filter_DrainAudio().

pf_audio_filter

block_t*(* filter_t::pf_audio_filter) (filter_t *, block_t *)

Filter an audio block (audio filter)

Referenced by aout_FiltersPipelinePlay(), and CreateFilter().

pf_change_viewpoint

void(* filter_t::pf_change_viewpoint) (filter_t *, const vlc_viewpoint_t *)

Change viewpoint.

Pass a new viewpoint to audio filters. Filters like the spatialaudio one used for Ambisonics rendering will change its output according to this viewpoint.

Referenced by filter_ChangeViewpoint().

pf_flush

void(* filter_t::pf_flush) (filter_t *)

Flush.

Flush (i.e. discard) any internal buffer in a video or audio filter.

Referenced by filter_Flush().

pf_get_attachments

int(* filter_t::pf_get_attachments) (filter_t *, input_attachment_t ***, int *)

Referenced by filter_GetInputAttachments().

pf_render

int(* filter_t::pf_render) (filter_t *, subpicture_region_t *, subpicture_region_t *, const vlc_fourcc_t *)

Render text (text render)

pf_sub_filter

subpicture_t*(* filter_t::pf_sub_filter) (filter_t *, subpicture_t *)

Filter a subpicture (sub filter)

Referenced by filter_chain_SubFilter().

pf_sub_mouse

int(* filter_t::pf_sub_mouse) (filter_t *, const struct vlc_mouse_t *p_old, const struct vlc_mouse_t *p_new, const video_format_t *)

Referenced by filter_chain_MouseEvent().

pf_sub_source

subpicture_t*(* filter_t::pf_sub_source) (filter_t *, mtime_t)

Generate a subpicture (sub source)

Referenced by filter_chain_SubSource().

pf_video_blend

void(* filter_t::pf_video_blend) (filter_t *, picture_t *, const picture_t *, int, int, int)

Blend a subpicture onto a picture (blend)

Referenced by filter_Blend().

pf_video_filter

picture_t*(* filter_t::pf_video_filter) (filter_t *, picture_t *)

Filter a picture (video filter)

Referenced by FilterChainVideoFilter(), ImageConvert(), ImageRead(), ImageWrite(), and SpuRenderRegion().

pf_video_mouse

int(* filter_t::pf_video_mouse) (filter_t *, struct vlc_mouse_t *, const struct vlc_mouse_t *p_old, const struct vlc_mouse_t *p_new)

Filter mouse state (video filter).

If non-NULL, you must convert from output to input formats:

• If VLC_SUCCESS is returned, the mouse state is propagated.
• Otherwise, the mouse change is not propagated. If NULL, the mouse state is considered unchanged and will be propagated.

Referenced by filter_chain_MouseFilter().

psz_name

const char* filter_t::psz_name

Referenced by filter_chain_AppendInner().

---

The documentation for this struct was generated from the following file:

• include/vlc_filter.h