CODEWITHSUNDEEP
videoffmpegmp4h.264
Rafael Lima
Rafael Lima

Reputation: 3535

ffmeg force keyframe at specific interval

I'm using ffmpeg to split videos at certain interval intervals, as ffmpeg can just split the video on keyframes i do need to force extra keyframes at the interval i need.

my ffmpeg command runs fine on windows like:

ffmpeg.exe -y -i asd.mp4 -map 0 -segment_time 15 -f segment -force_key_frames "expr:gte(t,n_forced*15)" asd%03d.mp4

But when i try to run on linux i get:

Invalid duration specification for force_key_frames: "expr:gte(t

i tried to replace double quotes for simple quotes but same error

I'm using the exact same parameters on windows and linux [including same video file] just adjusting the ffmepg binary path.

Does anyone know what is the problem?

Is there another way i can achieve this behavior?

Upvotes: 0

Views: 1729

Answers (1)

scotty86
scotty86

Reputation: 593

Had exact the same issue. Worked fine on my Linux machine, on Windows I got that error. After dropping the quotes it runs on Windows, in my example I changed:

-force_key_frames 'expr:gte(t,n_forced*10)'

to

-force_key_frames expr:gte(t,n_forced*10)

Upvotes: 2

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