use FFMPEGExecutor but command not run correctly

[naffan2014]

in 2.7.3

code below:

public String annullsrcVideo(Long taskId,
								 Long startTime,
								 Long endTime,
								 DirType targetDir,
								 String targetFormat) {
		String filePath = fileInfra.makeDirPath(taskId, targetDir); //make dir path
		String fileName = "annullsrc_" + taskId + "_" + System.currentTimeMillis() + "_"  + (endTime - startTime) + "." + targetFormat;
		String fileAllPath = filePath + fileName;
		DefaultFFMPEGLocator locator = new DefaultFFMPEGLocator();
		FFMPEGExecutor localFFMPEG = locator.createExecutor();
		localFFMPEG.addArgument("-f");
		localFFMPEG.addArgument("lavfi");
		localFFMPEG.addArgument("-i");
		localFFMPEG.addArgument("color=size=1280x720:rate=25:color=black");
		localFFMPEG.addArgument("-f");
		localFFMPEG.addArgument("lavfi");
		localFFMPEG.addArgument("-i");
		localFFMPEG.addArgument("anullsrc=channel_layout=stereo:sample_rate=44100");
		localFFMPEG.addArgument("-t");
		localFFMPEG.addArgument(String.valueOf(endTime - startTime));
		localFFMPEG.addArgument(fileAllPath);
		try {
			localFFMPEG.execute();
		}catch (Exception e){
			LOGGER.info("空原视频构造失败，原因是:{}",e.getMessage());
		}
		return filePath;
	}


//for example
Long taskId = 20210914L;
		Long startTime = System.currentTimeMillis();
		Long endTime = System.currentTimeMillis() + 5;
		String path = produceInfra.annullsrcVideo(taskId, startTime, endTime, DirType.ANNULL, "ts");

no file created. but after enable log, i can get command this:

About to execute /var/folders/2y/jqhn24qs34sb1699gcdrdr_h0000gn/T/jave/ffmpeg-x86_64-2.7.3-osx -f lavfi -i color=size=1280x720:rate=25:color=black -f lavfi -i anullsrc=channel_layout=stereo:sample_rate=44100 -t 5 /var/folders/2y/jqhn24qs34sb1699gcdrdr_h0000gn/T/bk-tv-quality-processor/20210914/ANNULL/annullsrc_20210914_1631601152939_5.ts -hide_banner

i use this command in terminal. it can produce annull video.

i found that if i make a breakpoint at FFMPEGExecutor.java line 119: ffmpeg = runtime.exec(cmd); when runing code and stop at this breakpoint and step over, the annull video can be produced.

it is a little confuzing..

[naffan2014]

it must be some thread run eariler or later question, in 2.7.3 it must be due to some bug in it , but 2.7.3 is very old one so it not worth sovling.

my method is:

	String cmd = locator.getFFMPEGExecutablePath() +
			" -f lavfi -i color=size=1280x720:rate=25:color=black -f lavfi -i anullsrc=channel_layout=mono:sample_rate=16000 -vcodec h264 -acodec aac -t 30 output.mp4 -hide_banner  -loglevel quiet"
		try {
			Runtime runtime = Runtime.getRuntime();
			Process process = runtime.exec(cmd);
			process.waitFor();
		}catch (IOException ioe){
			LOGGER.info("reason1:{}",ioe.getMessage());
			throw ioe;
		}catch (InterruptedException ie){
			LOGGER.info("reason2:{}",ie.getMessage());
			throw ie;
		}

[shengtu0328]

I also encountered the same problem.
#220

[shengtu0328]

it must be some thread run eariler or later question, in 2.7.3 it must be due to some bug in it , but 2.7.3 is very old one so it not worth sovling.

my method is:

	String cmd = locator.getFFMPEGExecutablePath() +
			" -f lavfi -i color=size=1280x720:rate=25:color=black -f lavfi -i anullsrc=channel_layout=mono:sample_rate=16000 -vcodec h264 -acodec aac -t 30 output.mp4 -hide_banner  -loglevel quiet"
		try {
			Runtime runtime = Runtime.getRuntime();
			Process process = runtime.exec(cmd);
			process.waitFor();
		}catch (IOException ioe){
			LOGGER.info("reason1:{}",ioe.getMessage());
			throw ioe;
		}catch (InterruptedException ie){
			LOGGER.info("reason2:{}",ie.getMessage());
			throw ie;
		}

it must be some thread run eariler or later question, in 2.7.3 it must be due to some bug in it , but 2.7.3 is very old one so it not worth sovling.

my method is:

	String cmd = locator.getFFMPEGExecutablePath() +
			" -f lavfi -i color=size=1280x720:rate=25:color=black -f lavfi -i anullsrc=channel_layout=mono:sample_rate=16000 -vcodec h264 -acodec aac -t 30 output.mp4 -hide_banner  -loglevel quiet"
		try {
			Runtime runtime = Runtime.getRuntime();
			Process process = runtime.exec(cmd);
			process.waitFor();
		}catch (IOException ioe){
			LOGGER.info("reason1:{}",ioe.getMessage());
			throw ioe;
		}catch (InterruptedException ie){
			LOGGER.info("reason2:{}",ie.getMessage());
			throw ie;
		}

Your code is indeed a solution，thanks a lot。