From: boolemancer <redacted>
Date: Sun, 8 Jan 2023 13:08:45 +0000 (-0800)
Subject: whisper : fix sample_to_timestamp calculation with 64 bit precision to avoid overflow... 
X-Git-Tag: upstream/1.7.4~1626
X-Git-Url: https://git.djapps.eu/?a=commitdiff_plain;h=08dc705a694248fb94b6f64cbeb93f4e474635e3;p=pkg%2Fggml%2Fsources%2Fwhisper.cpp

whisper : fix sample_to_timestamp calculation with 64 bit precision to avoid overflow (#388)

* Do calculation with 64 bit precision to avoid overflow

* Update whisper.cpp

Co-authored-by: Georgi Gerganov <redacted>

Co-authored-by: Georgi Gerganov <redacted>
---

diff --git a/whisper.cpp b/whisper.cpp
index 433b7355..f1985a49 100644
--- a/whisper.cpp
+++ b/whisper.cpp
@@ -3388,7 +3388,7 @@ static int timestamp_to_sample(int64_t t, int n_samples) {
 }
 
 static int64_t sample_to_timestamp(int i_sample) {
-    return (100*i_sample)/WHISPER_SAMPLE_RATE;
+    return (100ll*i_sample)/WHISPER_SAMPLE_RATE;
 }
 
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