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sub: adjust behavior on mismatching video/subtitle aspect mismatch 

If the aspect ratio of the video resolution and the subtitle resolution
(the implied subtitle coordinate system) mismatch, the subtitles
obviously can't be overlayed over the video perfectly. Either you get
video that can't be covered by subtitles, or the subtitles could go
beyond the video. We don't want to stretch the subtitle to compensate
for the aspect ratio, because it would look terrible.

Until now, mpv used to fit the subtitle rectangle into the video
rectangle (letterboxing/pillarboxing). This looks odd with some sample
files with subtitle canvas being wider than the video. Also, mpc-hc
displays them in a better way. vlc stretches them, which looks bad.
While you probably can't win this game with all those broken files
around, pick the mpc-hc method to handle this.
This commit is contained in:
wm4 2015-10-21 23:07:24 +02:00
parent 56d04c6570
commit dd08018e9e
1 changed files with 2 additions and 7 deletions
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9
sub/osd.c
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@ -480,13 +480,8 @@ void osd_rescale_bitmaps(struct sub_bitmaps *imgs, int frame_w, int frame_h,
double yscale = (double)vidh / frame_h;
if (compensate_par < 0)
compensate_par = xscale / yscale / res.display_par;
if (compensate_par > 0) {
if (compensate_par > 1.0) {
xscale /= compensate_par;
} else {
yscale *= compensate_par;
}
}
if (compensate_par > 0)
xscale /= compensate_par;
int cx = vidw / 2 - (int)(frame_w * xscale) / 2;
int cy = vidh / 2 - (int)(frame_h * yscale) / 2;
for (int i = 0; i < imgs->num_parts; i++) {