Duration of mp4 is wrong when getting metadata (4.2 vs 10)

[David Bensoussan]

Hi,
I'm getting a wrong value for the video duration.

Environment:
Ubuntu 22
ffprobe version n5.1.2 Copyright (c) 2007-2022 the FFmpeg developers
built with gcc 12.2.0 (GCC)

ffprobe -i 2023-01-05T09-19-23.mp4 -show_entries format=duration -v quiet -of csv="p=0"
Gives 10.000

While running

package main

import (
    "os"
	"context"
	"fmt"

	"gopkg.in/vansante/go-ffprobe.v2"
)


func getDurationVideo(path string) float64 {
	fileReader, err := os.Open(path)
	if err != nil {
		fmt.Printf("Could not get open the file\n")
		result := -1.0
		return result
	}

	ctx_dur := context.TODO()
	data, err := ffprobe.ProbeReader(ctx_dur, fileReader)
	if err != nil {
		fmt.Printf("Error getting data: %v", err)
		result := -1.0
		return result
	}
	return data.Format.Duration().Seconds()
}

func main() {
    var dur float64 = getDurationVideo("2023-01-05T09-19-23.mp4")
    fmt.Printf("%f", dur)
}

returns 4.2.

Not sure what's needed to be done. Thanks!

[Paul]

Can you provide the file you tested this with for easier reproduction?

[Paul]

Closing for inactivity, please let me know if you still experience this problem.