Golang : ffmpeg with os/exec.Command() returns non-zero status
Problem:
You want to use ffmpeg
with os/exec.Command() and Run() to create your video files.
However, it keeps bombing out with the error message:
exit status 1
You are able to execute the command with the supplied parameters and flags just fine on your terminal.
What's going on? How to fix this?
Solution:
Golang's os/exec.Command()
function does not have the shell=true
feature like Python did. ffmpeg is very sensitive to white spaces when running from another program. To fix the problem, simply remove whitespaces by using ,
instead of +
to assemble the flags and parameters to ffmpeg.
For example,
cmd := exec.Command("ffmpeg", "-r "+recordedFPSstring+" -i "+videoFileName+" -r 6 temp_"+videoFileName)
to
cmd := exec.Command("ffmpeg", "-r", recordedFPSstring, "-i", videoFileName, "-r", "6", "temp_"+videoFileName)
See also : Golang : Merge video(OpenCV) and audio(PortAudio) into a mp4 file
By
IF you gain some knowledge or the information here solved your programming problem. Please consider donating to the less fortunate or some charities that you like. Apart from donation, planting trees, volunteering or reducing your carbon footprint will be great too.
Advertisement
Tutorials
+17.1k Golang : Find IP address from string
+9.9k Golang : Removes punctuation or defined delimiter from the user's input
+7.8k Golang : Accept any number of function arguments with three dots(...)
+8k Golang : Populate or initialize struct with values example
+11.3k Golang : Listen and Serve on sub domain example
+11.2k Golang : Add ASCII art to command line application launching process
+13.7k Golang : Search folders for file recursively with wildcard support
+4.6k Golang : What is StructTag and how to get StructTag's value?
+15.8k Golang : Find file size(disk usage) with filepath.Walk
+7.6k Golang : How to join strings?
+17.5k Golang : Check whether a network interface is up on your machine
+31.3k Golang : Regular Expression for alphanumeric and underscore