CODEWITHSUNDEEP
ffmpeg
Aurelius Schnitzler
Aurelius Schnitzler

Reputation: 531

Differences in outcome between positioning of ss and t?

What is the difference between

ffmpeg -y -ss 1 -i "test.MP4" -t 2 -c copy "test2.MP4"

and

ffmpeg -y -t 2 -i "test.MP4" -ss 1 -c copy "test2.MP4"

and

ffmpeg -y -ss 1 -t 2 -i "test.MP4" -c copy "test2.MP4"

and

ffmpeg -y -i "test.MP4" -ss 1 -t 2 -c copy "test2.MP4"

Upvotes: 0

Views: 34

Answers (1)

Harald Nordgren
Harald Nordgren

Reputation: 12401

From the documentation on https://ffmpeg.org/ffmpeg.html:

-ss position (input/output)

When used as an input option (before -i), seeks in this input file to position. [...] When used as an output option (before an output url), decodes but discards input until the timestamps reach position.

and

-t duration (input/output)

When used as an input option (before -i), limit the duration of data read from the input file. When used as an output option (before an output url), stop writing the output after its duration reaches duration.

Upvotes: 1

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