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video: ensure sign in scale function

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This commit is contained in:
Wim Taymans 2011-08-01 16:50:28 +02:00
parent d634b3e6d9
commit 6b8617271c
1 changed files with 1 additions and 1 deletions
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2
gst-libs/gst/video/video.h
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@ -272,7 +272,7 @@ struct _GstVideoFormatInfo {
#define GST_VIDEO_FORMAT_INFO_W_SUB(info,c) ((info)->w_sub[c])
#define GST_VIDEO_FORMAT_INFO_H_SUB(info,c) ((info)->h_sub[c])
#define GST_VIDEO_SUB_SCALE(scale,val) (-((-(val))>>(scale)))
#define GST_VIDEO_SUB_SCALE(scale,val) (-((-((gint)val))>>(scale)))
#define GST_VIDEO_FORMAT_INFO_SCALE_WIDTH(info,c,w) GST_VIDEO_SUB_SCALE ((info)->w_sub[(c)],(w))
#define GST_VIDEO_FORMAT_INFO_SCALE_HEIGHT(info,c,h) GST_VIDEO_SUB_SCALE ((info)->h_sub[(c)],(h))