Added: 3 years ago
From: linuxjournalonline
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  • In 09:49, to be able to concatenate videos, I used this command:

    cat part1.mpg part2.mpg part3.mpg | ffmpeg -y -f mpeg -i - output.mpg

    Just as an alternative. I haven't tried cat part1.mpg part2.mpg part3.mpg > output.mpg

  • dificult !

  • This is way cool!but i do have a question and hope you can answer it. Do you have another way of making the slow motion video without the pipes since i'm running under windows xp and as you know, WIN32 doesn't support pipes. Is there another way to do it?

  • yikes i got a ways to go before i understand this

  • I prefer the command line to the GUI myself, many people might call it in unintuitive, but I think it's fun and you can automate certain tasks with batch scripts.

  • You can automate certain tasks with batch scripts, yes. But you can automate EVERYTHING with zsh scripts ;)

  • ***** !

  • very interesting, thank you for making this!

  • dickedy

  • ???

  • Nice tutorial, talking fast much though?

  • Schnellschwätzer

  • Two questions to be answered, please:

    1. If you are in an NTSC standard country, why did you use initially use the frame rate of 25 on an NTSC video instead of 29.97?

    2. The ~6 second snippet of the original video clearly does not look as good as the original that is edited into this demonstration. What were the settings used for that original footage, before the first six seconds were reprocessed to demonstrate an output?

    Thank you for a well presented demonstration!

    R

  • This was amazing . Faved .

  • :) thanks for posting this video

  • Nice video, very informative, thanks for posting it.

  • Wow.

  • I prefer the usual way of doing things with linux. Install, scratch head, curse, break the program(if you can get it to install) consult many forum posts, possibly learn something.

    Whatever method you prefer remember, always have fun:)

    Thank you for your tips and keep em comeing!

    Sig

  • Lol, we've all been there. Really, the point of doing these is so that other people benefit from my hours of climbing learning curves.

  • That was awesome. I have been looking for a command line tool to edit my videos.

    I had no idea ffmpeg was such a great tool.

  • Great tut but really need to stick with GUI tools. CLI stuff are a bit more advanced and the people that would use it will typically RTFM =)

  • I'm looking for converts:) Using GUI tools in tutorials is actually not as simple as you might think. Should I use a gnome tool or a kde tool? Will all the distros have it available or are some people going to have to track down a mountain of dependencies to get it running? CLI tools (almost) always work for everyone. Plus mastering a clunky unintuitive interface stimulates gray matter.

  • I haven't watched the whole video (yet), but have you taken a look at WinFF?

  • I haven't actually used it. I find the command line interface pretty easy to work with once you get used to it. Why do they have to call it WinFF, though? It sounds too much like win32ff or something.

  • @emiemi2:

    Sure, the command line is easy for those of us who enjoy it, but even with love for the command line, sometimes you just want to use a GUI for the sake of time, or whatever. I'm not sure why it's called WinFF, maybe the guy started it as a Windows project and gradually released code for Linux and the name WinFF was retained? I agree, it does sound odd. I use a few conversion tools with Wine with a GUI because I'm lazy, but I'm glad videos like this are being released.

  • I didn't mean to imply GUI frontends are for the lazy, I use several, although actually I am pretty lazy so maybe they are(??) :). JACK in particular I find to be almost impossible without QJackCtl. The command line is necessary sometimes however, the slow motion trick for instance requires it, so I think it's good to at least be exposed to it.

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