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vlc-video: Fix videos larger than 1080p being squished

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Fix an overflow in display_width caused by unsafe multiplication of the
video width by Sample Aspect Ratio.
This commit is contained in:
Lukáš Cezner
2023-01-15 11:49:35 +01:00
committed by Ryan Foster
parent e280fd6cd0
commit 5d1f0efc43
1 changed files with 5 additions and 5 deletions
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plugins/vlc-video/vlc-video-source.c
+5 -5
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@@ -401,8 +401,8 @@ static void calculate_display_size(struct vlc_source *c, unsigned *width,
if (track->i_type != libvlc_track_video)
continue;
int display_width = track->video->i_width;
int display_height = track->video->i_height;
unsigned display_width = track->video->i_width;
unsigned display_height = track->video->i_height;
if (display_width == 0 || display_height == 0)
continue;
@@ -410,9 +410,9 @@ static void calculate_display_size(struct vlc_source *c, unsigned *width,
/* Adjust for Sample Aspect Ratio (SAR) */
if (track->video->i_sar_num > 0 &&
track->video->i_sar_den > 0) {
display_width = display_width *
track->video->i_sar_num /
track->video->i_sar_den;
display_width = (unsigned)util_mul_div64(
display_width, track->video->i_sar_num,
track->video->i_sar_den);
}
switch (track->video->i_orientation) {