[FFmpeg-user] Having problems combining multiple videos (concat)

Kieran O Leary kieran.o.leary at gmail.com
Fri Sep 22 02:03:48 EEST 2017


I was actually thinking of the settb option, sorry.
I might be leading you astray here, but I'm just going from memory.
Hopefully someone has a better answer.
More answers below..

On 21 Sep 2017 23:38, "Karen Norton" <nortok00 at gmail.com> wrote:

Awesome!! Thanks for the speedy reply and for this suggestion. I know it
has to be something related to this.

I haven't used this flag before and I just looked at the documentation but
I'm a little lost on what I should do so...
1. Do I set this when I'm merging the two files or do I set this on the
separate files first?

You might be able to do it either way, I remember altering my black video
though. Except I just generated a black video via ffmpeg. Doing it via
YouTube downloads sounds overly complicated.

2. Is there a specific value to use?

I'd guess whatever your actual quilting video files are?

3. Do I have to set this for the video and audio or just video?

Hmm, just video I think.and probably just your black video.

4. Is there somewhere I can see the original values in the separate files
that will guide me in what I should be using? Maybe through ffprobe or
something? I don't recall seeing this in mediainfo.

Yes, these values are in your ffmpeg -i call at the end. I made a mistake
talking about setpts. Anyhow it's worth a shot!

Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p,
1920x1080 [SAR 1:1 DAR 16:9], 10369 kb/s, 30.01 fps, 60 tbr, 30k tbn, 59.94

More information about the ffmpeg-user mailing list