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video: Add GST_VIDEO_INFO_FIELD_RATE_N() macro

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Add a new macro that gives you the rate of the fields, which is the
numerator of the field-rate for ALTERNATE interlacing video and FPS for
progressive and other interlacing formats.

https://bugzilla.gnome.org/show_bug.cgi?id=796106
This commit is contained in:
Zeeshan Ali 2018-07-02 23:48:04 +02:00 committed by Nicolas Dufresne
parent be6c8400b0
commit 3880eb819a
1 changed files with 3 additions and 0 deletions
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3
gst-libs/gst/video/video-info.h
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@ -365,6 +365,9 @@ GType gst_video_info_get_type (void);
#define GST_VIDEO_INFO_PAR_N(i) ((i)->par_n)
#define GST_VIDEO_INFO_PAR_D(i) ((i)->par_d)
#define GST_VIDEO_INFO_FPS_N(i) ((i)->fps_n)
#define GST_VIDEO_INFO_FIELD_RATE_N(i) ((GST_VIDEO_INFO_INTERLACE_MODE ((i)) == \
GST_VIDEO_INTERLACE_MODE_ALTERNATE) ? \
(i)->fps_n * 2 : (i)->fps_n)
#define GST_VIDEO_INFO_FPS_D(i) ((i)->fps_d)
#define GST_VIDEO_INFO_COLORIMETRY(i) ((i)->colorimetry)