I had meant to send this to the list also.

Begin forwarded message:

> From: James <jpl...@biomantica.com>
> Date: August 31, 2017 10:48:29 AM EDT
> To: Racket Users <racket-users@googlegroups.com>
> Subject: Fwd: [racket-users] GUI for ffmpeg and mrlib/terminal
> 
> I had meant to send this to the list as well...
> 
> Begin forwarded message:
> 
>> From: James <jbiomant...@gmail.com>
>> Date: August 30, 2017 4:26:24 PM EDT
>> To: Leif Andersen <l...@leifandersen.net>
>> Subject: Re: [racket-users] GUI for ffmpeg and mrlib/terminal
>> 
>> As mentioned earlier, my primary goal right now is to learn GUI programming 
>> but I do have a side interest in video editing.  I can't spend a lot of time 
>> on it but I definitely can at lest do some testing and bug reports.  One 
>> thing on my agenda is to eventually find a replacement for QuickTime 7 Pro.  
>> This is the simplest and easiest editor, by far, for the most common, basic 
>> things I want to do.  Those of us who paid Apple $30 for the Pro version, 
>> eight years or so ago, are still able to run QuickTime 7, alongside 10, in 
>> order to have the better editing capability of the old version.  I still use 
>> it but I'm sure it's days are numbered.  In fact, one of the more common 
>> things I do with ffmpeg is convert video from newer formats to something 
>> that QuickTime 7 can open and edit.  I have been intermittently trying out 
>> potential substitutes but, so far, none of them have been much good in my 
>> opinion.
>> 
>> James
>> 
>> 
>> On Aug 29, 2017, at 7:40 PM, Leif Andersen wrote:
>> 
>>> Well James, you're in luck.
>>> 
>>> The short answer is, yes, yes you can.  You should check out video at
>>> http://lang.video (you can follow the progress either on the blog, the
>>> twitter feed http://twitter.com/videolang , or on github itself:
>>> https://github.com/videolang/video . Alternatively, you are welcome to
>>> arrange a call with me some time so we can coordinate our efforts.
>>> 
>>> 
>>> The (slightly) longer answer is: you can find the (private and thus
>>> unstable) bindings here:
>>> https://github.com/videolang/video/tree/master/video/private/ffmpeg;
>>> and my (very early) prototype NLVE widgets here:
>>> https://github.com/videolang/video/blob/master/video/private/editor.rkt.
>>> In either case, contributions are absolutely welcome. Bug reports are
>>> also welcome and very helpful.
>>> 
>>> I hope that helps, and feel free to ask any questions. If you are
>>> interested in creating GUIs for Video editing we should also sit down
>>> for a chat some time. (Either in person or via teleconference.)
>>> 
>>> Anyway, I hope you have a lovely day.
>>> 
>>> ~Leif Andersen
>>> 
>>> 
>>> On Tue, Aug 29, 2017 at 3:57 PM, James <jbiomant...@gmail.com> wrote:
>>>> I have been working through The Racket Graphical Interface Toolkit 
>>>> documentation to learn GUI programming and I thought I would do a small 
>>>> but useful project.  The idea is to make a simple GUI front end which will 
>>>> formulate commands for ffmpeg to do various video and audio conversions on 
>>>> selected files and then run those commands.  MrLib/terminal seems like 
>>>> just the thing except there are various ways that it isn't as good as it 
>>>> could be for this kind of project.   It's mostly small things, for 
>>>> example, the cancel button is labeled "Abort Instillation" by default.  
>>>> The one thing which is not so simple is that it looks like it is intended 
>>>> to just run one command and not create an interactive environment.  I was 
>>>> expecting to be able to send commands to the terminal% object in order to 
>>>> run things one after another.  Instead, you pass a function as a parameter 
>>>> when you create the terminal% object and it just runs that function.  So, 
>>>> either I have to close the terminal and open a new one each time I run a 
>>>> command or I suppose that I could have the function work with a thread 
>>>> mailbox or channels so that I could keep using it.  My question is whether 
>>>> MrLib Terminal the best option for this kind of work or is there a better 
>>>> bet?
>>>> 
>>>> https://docs.racket-lang.org/mrlib/Terminal_Window.html
>>>> 
>>>> James
>>>> 
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> 

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