avformat/movenc-test: Fix integer overflows

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

libavformat/movenc-test.c

@@ -60,8 +60,8 @@ AVStream *video_st, *audio_st;
 int64_t audio_dts, video_dts;
 
 int bframes;
-int duration;
-int audio_duration;
+int64_t duration;
+int64_t audio_duration;
 int frames;
 int gop_size;
 int64_t next_p_pts;
@@ -196,9 +196,9 @@ static void init_fps(int bf, int audio_preroll, int fps)
     frames = 0;
     gop_size = 30;
     duration = video_st->time_base.den / fps;
-    audio_duration = 1024 * audio_st->time_base.den / audio_st->codec->sample_rate;
+    audio_duration = 1024LL * audio_st->time_base.den / audio_st->codec->sample_rate;
     if (audio_preroll)
-        audio_preroll = 2048 * audio_st->time_base.den / audio_st->codec->sample_rate;
+        audio_preroll = 2048LL * audio_st->time_base.den / audio_st->codec->sample_rate;
 
     bframes = bf;
     video_dts = bframes ? -duration : 0;

tests/ref/fate/movenc

 249e02e3645ea5ca2c74397c62c53314 3269 non-empty-moov
 3281ff664e9a06e5a03ec6ea1729696c 3721 non-empty-moov-elst
 b408a545b1963a5ea82cf37208b66548 3629 non-empty-moov-no-elst
-f717c240ddfc036ed8a635b0af55bac2 11459 ismv
+a66c786022280c1f69ad7c98c719fa53 4435 ismv
 176a315a5385cb2e082d863e0fb22bf1 2891 empty-moov
 10eb3fdf6ed1400a1eec50746537159f 3283 empty-moov-no-elst
 bcd4d6d22f828f1061e13f3af459644f 3115 empty-moov-no-elst-no-adjust