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ffplay: convert float math to int math in calculate_display_rect

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Signed-off-by: Marton Balint <cus@passwd.hu>
This commit is contained in:
Marton Balint 2018-11-24 23:58:04 +01:00
parent 2a08faba88
commit 9a39c5449f
1 changed files with 9 additions and 13 deletions
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22
fftools/ffplay.c
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@ -861,31 +861,27 @@ static void calculate_display_rect(SDL_Rect *rect,
int scr_xleft, int scr_ytop, int scr_width, int scr_height,
int pic_width, int pic_height, AVRational pic_sar)
{
float aspect_ratio;
int width, height, x, y;
AVRational aspect_ratio = pic_sar;
int64_t width, height, x, y;
if (pic_sar.num == 0)
aspect_ratio = 0;
else
aspect_ratio = av_q2d(pic_sar);
if (av_cmp_q(aspect_ratio, av_make_q(0, 1)) <= 0)
aspect_ratio = av_make_q(1, 1);
if (aspect_ratio <= 0.0)
aspect_ratio = 1.0;
aspect_ratio *= (float)pic_width / (float)pic_height;
aspect_ratio = av_mul_q(aspect_ratio, av_make_q(pic_width, pic_height));
/* XXX: we suppose the screen has a 1.0 pixel ratio */
height = scr_height;
width = lrint(height * aspect_ratio) & ~1;
width = av_rescale(height, aspect_ratio.num, aspect_ratio.den) & ~1;
if (width > scr_width) {
width = scr_width;
height = lrint(width / aspect_ratio) & ~1;
height = av_rescale(width, aspect_ratio.den, aspect_ratio.num) & ~1;
}
x = (scr_width - width) / 2;
y = (scr_height - height) / 2;
rect->x = scr_xleft + x;
rect->y = scr_ytop + y;
rect->w = FFMAX(width, 1);
rect->h = FFMAX(height, 1);
rect->w = FFMAX((int)width, 1);
rect->h = FFMAX((int)height, 1);
}
static void get_sdl_pix_fmt_and_blendmode(int format, Uint32 *sdl_pix_fmt, SDL_BlendMode *sdl_blendmode)