[FFmpeg-user] out_time_us wrong or strangely inaccurate

[thefoss at icybiz.com]

On 04.07.25 18:15, Ferdi Scholten wrote:
>>
>> How do I get the exact duration of a video file? Best would be of 
>> course if every frame is marked with its correct timestamp.
>>
> Why not use ffprobe?
>
> |ffprobe -v error -show_entries format=duration -of 
> default=noprint_wrappers=1:nokey=1 |./recordedVideo.webm
>
> webm containers also store the duration of the streams in the stream 
> metadata so you can also just query the duration tag.
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Because I accept user videos and not all clips contain this information:

ffprobe -v error -show_entries format=duration -of 
default=noprint_wrappers=1:nokey=1 ./recordedVideo.webm
N/A