[FFmpeg-cvslog] avutil/opt: handle whole range of int64_t in av_opt_get_int

[Zhao Zhili]

ffmpeg | branch: master | Zhao Zhili <quinkblack at foxmail.com> | Wed Nov 10 23:36:15 2021 +0800| [9fd2b39428165c2319106e82a3c1ca1bba11aa54] | committer: Michael Niedermayer

avutil/opt: handle whole range of int64_t in av_opt_get_int

Make get_int/set_int symetric. The int64_t to double to int64_t
conversion is unprecise for large value.

Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=9fd2b39428165c2319106e82a3c1ca1bba11aa54
---

 libavutil/opt.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/libavutil/opt.c b/libavutil/opt.c
index c7001dbcd3..cfda31ea2f 100644
--- a/libavutil/opt.c
+++ b/libavutil/opt.c
@@ -920,7 +920,10 @@ int av_opt_get_int(void *obj, const char *name, int search_flags, int64_t *out_v
 
     if ((ret = get_number(obj, name, NULL, &num, &den, &intnum, search_flags)) < 0)
         return ret;
-    *out_val = num * intnum / den;
+    if (num == den)
+        *out_val = intnum;
+    else
+        *out_val = num * intnum / den;
     return 0;
 }