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V4L/DVB (5402): Add vsync_field to the union in video_event for VIDEO_EVENT_VSYNC

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VIDEO_EVENT_VSYNC needs to tell the application which field it was that
received a VSYNC (odd/even/progressive). The vsync_field was added to the
union in video_event for this purpose.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Hans Verkuil 2007-03-10 06:24:30 -03:00 committed by Mauro Carvalho Chehab
parent 5332bdbe9a
commit 43d0dfcfc6
1 changed files with 8 additions and 0 deletions
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8
include/linux/dvb/video.h
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@ -120,6 +120,13 @@ struct video_command {
}; };
}; };
/* FIELD_UNKNOWN can be used if the hardware does not know whether
the Vsync is for an odd, even or progressive (i.e. non-interlaced)
field. */
#define VIDEO_VSYNC_FIELD_UNKNOWN (0)
#define VIDEO_VSYNC_FIELD_ODD (1)
#define VIDEO_VSYNC_FIELD_EVEN (2)
#define VIDEO_VSYNC_FIELD_PROGRESSIVE (3)
struct video_event { struct video_event {
int32_t type; int32_t type;
@ -131,6 +138,7 @@ struct video_event {
union { union {
video_size_t size; video_size_t size;
unsigned int frame_rate; /* in frames per 1000sec */ unsigned int frame_rate; /* in frames per 1000sec */
unsigned char vsync_field; /* unknown/odd/even/progressive */
} u; } u;
}; };