From b673526098f7f5504084a92b91bd8993613c045e Mon Sep 17 00:00:00 2001
From: Thomas Heck <t@b128.net>
Date: Sat, 19 Dec 2020 16:08:08 +0100
Subject: [PATCH] limit task progress ratio range

to prevent ui crashes when the progress data requested from gstreamer is somehow broken
---
 src/main.rs | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/main.rs b/src/main.rs
index abc334d..f04a358 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -454,11 +454,18 @@ async fn transcode(
                     .and_then(|time| time.nanoseconds());
 
                 let ratio = dur.and_then(|dur| {
+                    if dur == 0 {
+                        return None;
+                    }
+
                     let pos = decodebin
                         .query_position::<ClockTime>()
                         .and_then(|time| time.nanoseconds());
 
-                    pos.map(|pos| pos as f64 / dur as f64)
+                    pos.map(|pos| {
+                        let ratio = pos as f64 / dur as f64;
+                        ratio.max(0.0).min(1.0)
+                    })
                 });
 
                 if let Some(ratio) = ratio {