From 9a3f86f4977379edd2d4d528b99e26f84cd1f5d1 Mon Sep 17 00:00:00 2001
From: Talha Khan <talha@averred.net>
Date: Thu, 9 Mar 2023 22:11:33 +0800
Subject: [PATCH] livesync: Support variable framerate in fallback buffer
 duration calc

Avoids a divide by zero error

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-rs/-/merge_requests/1129>
---
 utils/livesync/src/livesync/imp.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/utils/livesync/src/livesync/imp.rs b/utils/livesync/src/livesync/imp.rs
index 807e5c12..86de3b86 100644
--- a/utils/livesync/src/livesync/imp.rs
+++ b/utils/livesync/src/livesync/imp.rs
@@ -482,6 +482,7 @@ impl State {
             .and_then(|c| c.structure(0))
             .filter(|s| s.name().starts_with("video/"))
             .and_then(|s| s.get::<gst::Fraction>("framerate").ok())
+            .filter(|framerate| framerate.denom() > 0 && framerate.numer() > 0)
             .and_then(|framerate| {
                 gst::ClockTime::SECOND
                     .mul_div_round(framerate.denom() as u64, framerate.numer() as u64)