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Commit 43d0dfcf authored by Hans Verkuil's avatar Hans Verkuil Committed by Mauro Carvalho Chehab
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V4L/DVB (5402): Add vsync_field to the union in video_event for VIDEO_EVENT_VSYNC 



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: default avatarHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@infradead.org>
parent 5332bdbe

include/linux/dvb/video.h

+8 −0
Original line number Diff line number Diff line
@@ -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 {

	int32_t type;
@@ -131,6 +138,7 @@ struct video_event { 
	union {

		video_size_t size;

		unsigned int frame_rate;	/* in frames per 1000sec */

		unsigned char vsync_field;	/* unknown/odd/even/progressive */

	} u;

};