Re: NSTask argument list

> On 26 Jun 2016, at 4:58 PM, Sandor Szatmari > wrote: > > You can either asynchronously monitor the task's output with notifications, > or I have read about a new API, but never used it, > -setReadabilityHandler:^(NSFileHandle* file) > > Sandor > Thanks! I

Re: NSTask argument list

Graham, > On Jun 26, 2016, at 01:29, Graham Cox wrote: > > >> On 26 Jun 2016, at 3:22 PM, dangerwillrobinsondan...@gmail.com wrote: >> >> If it helps, you can think of it as an object oriented wrapped around C >> system calls that keeps track of PID and all the other

Re: NSTask argument list

Graham, > On Jun 25, 2016, at 23:37, Graham Cox wrote: > > HI all, > > I am using NSTask to wrap ffmpeg, the video conversion utility. > > I am able to invoke ffmpeg alright, but it’s unclear how the argument list > should be passed through NSTask. I tried making my

Re: NSTask argument list

> On 26 Jun 2016, at 3:22 PM, dangerwillrobinsondan...@gmail.com wrote: > > If it helps, you can think of it as an object oriented wrapped around C > system calls that keeps track of PID and all the other bits like stdout and > so on. > That helps to grok why the args is and array and the

Re: NSTask argument list

If it helps, you can think of it as an object oriented wrapped around C system calls that keeps track of PID and all the other bits like stdout and so on. That helps to grok why the args is and array and the tool is separate. Sent from my iPhone > On Jun 26, 2016, at 1:37 PM, Graham Cox

Re: NSTask argument list

Ah thanks Marco, Andy… this makes a lot more sense and works fine. —Graham > On 26 Jun 2016, at 2:30 PM, Marco S Hyman wrote: > I believe arguments is an array of arguments, not an array containing a > string that matches a command line. > > Then your arguments array should

Re: NSTask argument list

> > NSString* argString = [NSString stringWithFormat:@"-i \"%@\" -c copy > %@", [url absoluteString], [self.outputFileURL absoluteString]]; > > self.ffMPEGTask = [NSTask launchedTaskWithLaunchPath:execPath > arguments:@[argString]]; I believe arguments is an array of

Re: NSTask argument list

Don't glom the arguments together.  Pass each as a separate array element: "-i", the URL string, "-c", "copy", the output string. And you don't need to quote the arguments, just pass them as is. I hope that makes sense -- I'd make it more code-like if I were at my desk rather than on my phone.

NSTask argument list

HI all, I am using NSTask to wrap ffmpeg, the video conversion utility. I am able to invoke ffmpeg alright, but it’s unclear how the argument list should be passed through NSTask. I tried making my various arguments into one big string, but ffmeg doesn’t parse it, instead writing an error.