CODEWITHSUNDEEP
c++ffmpegsystem
sion
sion

Reputation: 1477

c++ was a system call executed properly

I have written a small c++ program that takes some input files and runs some ffmpeg processes on them (via the 'system()' function). I would like to add to that program some code to delete the original files but I need to be sure that the ffmpeg commands executed properly and with no errors. How can I get my c++ program to check if the system() function it used executed properly?

Upvotes: 1

Views: 379

Answers (1)

Mats Petersson
Mats Petersson

Reputation: 129374

According to the documentation for system

If command is not a null pointer, the value returned depends on the system and library implementations, but it is generally expected to be the status code returned by the called command, if supported.

In other words:

 if(system("mycommand") != 0) 
 {
     cout << "mycommand failed..." << endl;
 }

or something like that. [Obviously assuming that "mycommand" is defined to give a result code of 0 if successfull - most things do, but there are exceptions].

Upvotes: 1

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