Cannot add audio (.wav) to a video file (.mp4)

[dr-slurp]

Hey! Overall I love jave, had tons of luck with splitting .mp4s. Now I need to add audio to my video files.

`attributes = new EncodingAttributes();
attributes.setOutputFormat("mp4");
attributes.setVideoAttributes(video);
attributes.setAudioAttributes(audio);

	MultimediaObject originalVideo = new MultimediaObject(new File(pathToVideo));
	MultimediaObject originalAudio = new MultimediaObject(new File(pathToAudio));
	ArrayList<MultimediaObject> sources = new ArrayList<MultimediaObject>();
	sources.add(originalVideo);
	sources.add(originalAudio);
	
	File target = new File(pathToCombined);

	
	encoder.encode(sources, target, attributes);`

and I'm getting a
Exception in thread "main" ws.schild.jave.EncoderException: Exit code of ffmpeg encoding run is 1 at ws.schild.jave.Encoder.encode(Encoder.java:638) at ws.schild.jave.Encoder.encode(Encoder.java:481) at ws.schild.jave.Encoder.encode(Encoder.java:324) at dr_slurp.MyceliumFidelity.Video.VideoSplitter.addAudioToVideo(VideoSplitter.java:92) at dr_slurp.MyceliumFidelity.MyFiTester.audioAdder(MyFiTester.java:34) at dr_slurp.MyceliumFidelity.MyFiTester.main(MyFiTester.java:26)

Is there a way to put audio on a video file that has no audio already?

Thanks,

[dr-slurp]

FYI, I am able to add audio to the video if I use this command in the CLI:
ffmpeg -i v.mp4 -i a.wav -c:v copy -map 0:v:0 -map 1:a:0 new.mp4
Is there a way to run arbitrary ffmpeg commands from jave2, or a way to run a similar command programatically?

THANKS!

[DoreamonWdy]

I also wanna to implement it, but i don't find any method.
so sad..

[dr-slurp]

@wxyleo
This is how i'm doing it without jave2, good luck

`

	Runtime rt = Runtime.getRuntime();
	Process pr = rt.exec("/opt/homebrew/bin/ffmpeg -i "+pathToVideo+" -i "+pathToAudio+" -c:v copy -map 0:v:0 -map 1:a:0 "+pathToCombined);

	BufferedReader stdInput = new BufferedReader(new InputStreamReader(pr.getInputStream()));
	BufferedReader stdError = new BufferedReader(new InputStreamReader(pr.getErrorStream()));
	
	String s = null;
	while ((s = stdInput.readLine()) != null) 
	{
	    System.out.println(s);
	}

	// Read any errors from the attempted command
	System.out.println("Here is the standard error of the command (if any):\n");
	while ((s = stdError.readLine()) != null) {
	    System.out.println(s);
	}

// Process pr = rt.exec("/opt/homebrew/bin/ffmpeg");
System.out.println(pr.getOutputStream().toString());
int result = pr.waitFor();
if(result == 0)
{
System.out.println("success");
}`

[DoreamonWdy]

tks