audio - Copy 5 seconds from 28 minute video using ffmpeg - Stack ...

How do I use ffmpeg (from the command line in Windows) to try and copy 5 seconds of an mkv video?

Here's what I've tried:

ffmpeg -ss 00:15:00 -i myVideo.mkv" -t 5 c:v copy c:a copy output.mkv 

I'm getting this error:

[NULL @ 0000000004909a60] Unable to find a suitable output format for 'c:v' c:v: Invalid argument 

Here's the info on the video:

Input #0, matroska,webm, from 'Title 01_02.mkv':   Duration: 00:28:18.57, start: 0.000000, bitrate: 10183 kb/s     Stream #0:0: Video: h264 (Constrained Baseline), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 23.98 fps, 23.98 tbr, 1k tbn , 48 tbc (default)     Stream #0:1: Audio: mp3, 44100 Hz, stereo, s16, 128 kb/s (default) 

Source: http://stackoverflow.com/questions/13003122/copy-5-seconds-from-28-minute-video-using-ffmpeg

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