lavf utils: Fix bad indentation.

libavformat/utils.c

@@ -1969,9 +1969,9 @@ static void estimate_timings_from_pts(AVFormatContext *ic, int64_t old_offset)
             if (read_size >= DURATION_MAX_READ_SIZE<<(FFMAX(retry-1,0)))
                 break;
 
-        do{
+            do {
                 ret = av_read_packet(ic, pkt);
-        }while(ret == AVERROR(EAGAIN));
+            } while(ret == AVERROR(EAGAIN));
             if (ret != 0)
                 break;
             read_size += pkt->size;
@@ -1980,13 +1980,14 @@ static void estimate_timings_from_pts(AVFormatContext *ic, int64_t old_offset)
                 (st->start_time != AV_NOPTS_VALUE ||
                  st->first_dts  != AV_NOPTS_VALUE)) {
                 duration = end_time = pkt->pts;
-            if (st->start_time != AV_NOPTS_VALUE)  duration -= st->start_time;
-            else                                   duration -= st->first_dts;
+                if (st->start_time != AV_NOPTS_VALUE)
+                    duration -= st->start_time;
+                else
+                    duration -= st->first_dts;
                 if (duration < 0)
                     duration += 1LL<<st->pts_wrap_bits;
                 if (duration > 0) {
-                if (st->duration == AV_NOPTS_VALUE ||
-                    st->duration < duration)
+                    if (st->duration == AV_NOPTS_VALUE || st->duration < duration)
                         st->duration = duration;
                 }
             }