From 5350991c80578dba99e073d54611acf6fbad43b4 Mon Sep 17 00:00:00 2001
From: Zoe Roux <zoe.roux@zoriya.dev>
Date: Thu, 22 Aug 2024 00:03:19 +0200
Subject: [PATCH] Use genpts

---
 transcoder/src/keyframes.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/transcoder/src/keyframes.go b/transcoder/src/keyframes.go
index 6e16d6a6f8..0f8594828b 100644
--- a/transcoder/src/keyframes.go
+++ b/transcoder/src/keyframes.go
@@ -157,6 +157,8 @@ func getVideoKeyframes(path string, video_idx uint32, kf *Keyframe) error {
 		"-loglevel", "error",
 		"-select_streams", fmt.Sprintf("V:%d", video_idx),
 		"-show_entries", "packet=pts_time,flags",
+		// some avi files don't have pts, we use this to ask ffmpeg to generate them (it uses the dts under the hood)
+		"-fflags", "+genpts",
 		"-of", "csv=print_section=0",
 		path,
 	)