forked from FFmpeg/FFmpeg
lavd/x11grab: fix vertical repositioning
There is a calculation error in xcbgrab_reposition() that breaks vertical repositioning on follow_mouse. It made the bottom reposition occur when moving the mouse lower than N pixels after the capture bottom edge, instead of before. This commit fixes the calculation to match the documentation. follow_mouse: centered or number of pixels. The documentation says: When it is specified with "centered", the grabbing region follows the mouse pointer and keeps the pointer at the center of region; otherwise, the region follows only when the mouse pointer reaches within PIXELS (greater than zero) to the edge of region.
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1 changed files with 1 additions and 1 deletions
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@ -127,7 +127,7 @@ static int xcbgrab_reposition(AVFormatContext *s,
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int left = x + f;
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int left = x + f;
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int right = x + w - f;
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int right = x + w - f;
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int top = y + f;
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int top = y + f;
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int bottom = y + h + f;
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int bottom = y + h - f;
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if (p_x > right) {
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if (p_x > right) {
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x += p_x - right;
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x += p_x - right;
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} else if (p_x < left) {
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} else if (p_x < left) {
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