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Commit bde25912 authored by Rémi Denis-Courmont's avatar Rémi Denis-Courmont
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filter: document callbacks

parent 2cebf81e
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Showing with 46 additions and 57 deletions
include/vlc_filter.h
View file @ bde25912
......@@ -84,69 +84,58 @@ struct filter_t
union
{
struct
{
picture_t * (*pf_filter) ( filter_t *, picture_t * );
void (*pf_flush)( filter_t * );
/* Filter mouse state.
*
* 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.
*/
int (*pf_mouse)( filter_t *, vlc_mouse_t *,
const vlc_mouse_t *p_old,
const vlc_mouse_t *p_new );
} video;
#define pf_video_filter u.video.pf_filter
#define pf_video_flush u.video.pf_flush
#define pf_video_mouse u.video.pf_mouse
/** Filter a picture (video filter) */
picture_t * (*pf_video_filter)( filter_t *, picture_t * );
struct
{
block_t * (*pf_filter) ( filter_t *, block_t * );
void (*pf_flush) ( filter_t * );
block_t * (*pf_drain) ( filter_t * );
} audio;
#define pf_audio_filter u.audio.pf_filter
#define pf_audio_flush u.audio.pf_flush
#define pf_audio_drain u.audio.pf_drain
/** Filter an audio block (audio filter) */
block_t * (*pf_audio_filter)( filter_t *, block_t * );
struct
{
void (*pf_blend) ( filter_t *, picture_t *,
const picture_t *, int, int, int );
} blend;
#define pf_video_blend u.blend.pf_blend
/** Blend a subpicture onto a picture (blend) */
void (*pf_video_blend)( filter_t *, picture_t *, const picture_t *,
int, int, int );
struct
{
subpicture_t * (*pf_source) ( filter_t *, mtime_t );
int (*pf_mouse) ( filter_t *,
const vlc_mouse_t *p_old,
const vlc_mouse_t *p_new,
const video_format_t * );
} sub;
#define pf_sub_source u.sub.pf_source
#define pf_sub_mouse u.sub.pf_mouse
/** Generate a subpicture (sub source) */
subpicture_t *(*pf_sub_source)( filter_t *, mtime_t );
struct
{
subpicture_t * (*pf_filter) ( filter_t *, subpicture_t * );
} subf;
#define pf_sub_filter u.subf.pf_filter
/** Filter a subpicture (sub filter) */
subpicture_t *(*pf_sub_filter)( filter_t *, subpicture_t * );
struct
{
int (*pf_render) ( filter_t *, subpicture_region_t *,
subpicture_region_t *,
const vlc_fourcc_t * );
} render;
#define pf_render u.render.pf_render
/** Render text (text render) */
int (*pf_render)( filter_t *, subpicture_region_t *,
subpicture_region_t *, const vlc_fourcc_t * );
};
union
{
/* TODO: video filter drain */
/** Drain (audio filter) */
block_t *(*pf_audio_drain) ( filter_t * );
};
/** Flush
*
* Flush (i.e. discard) any internal buffer in a video or audio filter.
*/
void (*pf_flush)( filter_t * );
#define pf_video_flush pf_flush
#define pf_audio_flush pf_flush
} u;
union
{
/** 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. */
int (*pf_video_mouse)( filter_t *, vlc_mouse_t *,
const vlc_mouse_t *p_old,
const vlc_mouse_t *p_new );
int (*pf_sub_mouse)( filter_t *, const vlc_mouse_t *p_old,
const vlc_mouse_t *p_new,
const video_format_t * );
};
/* Input attachments
* XXX use filter_GetInputAttachments */
......
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