Completly forgot about ffmpeg being Windows compilation, sorry for that. I've already updated the git project, even though ffmpeg and Icecast still there (I don't really know why...) the new classes don't use them anymore.
2017-02-06 13:43 GMT+01:00 Raymond DeCampo <r...@decampo.org>: > Well, we are still going to run into issues when I try it on my Linux > machine. > > I'd suggest just leaving ffmpeg out of it. Make a pair of simple Java > classes which take a file and output to standard out and then one which > reads from standard in and writes to a file; then a main class which starts > processes for the other two and hooks them up. > > > On Sun, Feb 5, 2017 at 7:04 PM, Edgar H <kaotix...@gmail.com> wrote: > > > There it goes, here is the link for the git repo. > > > > https://github.com/turbobrick/exec_dmo > > > > I've included ffmpeg and also Icecast so you can start the server in your > > machine via console and see if the mount "/stream" is active at > > 127.0.0.1:8000 once you start streaming audio from the system via the > test > > app. An already compiled .jar from the SecondApp class has already been > > generated, and it is inside /bin folder in /ffmpeg. Everything should be > > ready to go. > > > > Thanks for helping, really appreciated. > > > > 2017-02-05 22:51 GMT+01:00 Raymond DeCampo <r...@decampo.org>: > > > > > If I were to try to run this on my system, it would fail because there > is > > > no ffmpeg.exe file on my machine. > > > > > > You need to make it easier for me to help you by making a truly > > > self-contained minimal example of the issue (see > > > http://www.catb.org/~esr/faqs/smart-questions.html#code for more > details > > > on > > > this). Preferably the example will contain a pom.xml so it can be > built > > > easily and maybe put in on a gist in github so it can be downloaded > > easily. > > > > > > > > > > > > On Sun, Feb 5, 2017 at 3:46 PM, Edgar H <kaotix...@gmail.com> wrote: > > > > > > > Sure, here's a minimal example. > > > > > > > > The following code belongs to a "MainApp" class, which is the > basically > > > the > > > > application which starts the .jar responsible of capturing live audio > > > data > > > > from the system and sending it live to FFMPEG, which streams to an > > > Icecast > > > > Server, like a continuous stream using pipes. > > > > > > > > public class MainApp { > > > > > > > > public static void main(String[] args) { > > > > initStream("Path to FFMPEG bin folder, which should include > the > > > > .jar of the second application that you need to copy and paste."); > > > > } > > > > > > > > public static void initStream(String path) { > > > > File file = new File(path); > > > > for (File s : file.listFiles()) { > > > > if (s.getName().equals("ffmpeg.exe")) { > > > > try { > > > > DefaultExecutor executor = new DefaultExecutor(); > > > > executor.setWorkingDirectory(file); > > > > > > > > CommandLine commandLine = new > > > > CommandLine(s.getParentFile().getAbsolutePath()); > > > > System.out.println("Path: " + > > > commandLine.toString()); > > > > > > > > String executeMe = "java -jar secondapp.jar"; // > > > > Execute "SecondApp" .jar to start sending sound bytes to stdout. > > > > commandLine = CommandLine.parse(executeMe); > > > > > > > > PipedOutputStream output = new > PipedOutputStream(); > > > // > > > > Fill this with bytes. > > > > PipedInputStream input = new PipedInputStream(); > > > > output.connect(input); // Send audio bytes from > > > output > > > > to this input stream. > > > > > > > > executor.setStreamHandler(new > > > PumpStreamHandler(output, > > > > null)); // Stream all the bytes to the output. > > > > executor.execute(commandLine, new > > > > DefaultExecuteResultHandler()); // Execute APP2 (The one which > > captures > > > > the > > > > live audio bytes). > > > > > > > > String feedMe = "ffmpeg -f s16le -ar 48000 -ac 2 > > -i - > > > > -f ogg -content_type application/ogg icecast://source:hackme@ > localhost > > > > :8000/stream"; > > > > commandLine = CommandLine.parse(feedMe); > > > > > > > > executor.setStreamHandler(new > > PumpStreamHandler(null, > > > > null, input)); // Send the bytes being received in real time to > FFMPEG. > > > > executor.execute(commandLine, new > > > > DefaultExecuteResultHandler()); // Execute FFMPEG. > > > > } catch (IOException e) { > > > > e.printStackTrace(); > > > > } > > > > } > > > > } > > > > } > > > > } > > > > > > > > Now, this is the code for the executable .jar which is the class > > > > "SecondApp". This one just sends bytes to the Standard Output and > it's > > > > started by "MainApp". > > > > > > > > public class SecondApp { > > > > > > > > public static void main(String[] args) throws > > ClassNotFoundException, > > > > IOException { > > > > Mixer mixer = > > > > AudioSystem.getMixer(AudioSystem.getMixerInfo()[ > > > > Integer.parseInt(args[0])]); > > > > AudioFormat af = new AudioFormat(Encoding.PCM_SIGNED, > 48000f, > > > 16, > > > > 2, 4, 48000f, false); > > > > > > > > TargetDataLine line; > > > > DataLine.Info info = new DataLine.Info(TargetDataLine.class, > > > af); > > > > if (!AudioSystem.isLineSupported(info)) > > > > System.out.println("Line is not supported."); > > > > > > > > try { > > > > line = (TargetDataLine) mixer.getLine(info); > > > > line.open(af); > > > > > > > > int bytesRead, CHUNK_SIZE = 4096; > > > > byte[] data = new byte[line.getBufferSize() / 5]; > > > > > > > > line.start(); > > > > > > > > while (true) { > > > > bytesRead = line.read(data, 0, CHUNK_SIZE); > > > > System.out.write(data, 0, bytesRead); > > > > System.out.flush(); > > > > } > > > > > > > > } catch (LineUnavailableException ex) { > > > > System.out.println("Line is unavailable."); > > > > ex.printStackTrace(); > > > > } > > > > } > > > > } > > > > > > > > 2017-02-05 16:31 GMT+01:00 Raymond DeCampo <r...@decampo.org>: > > > > > > > > > Edgar, I didn't see anything obvious wrong with what you posted. > If > > > you > > > > > can distill it down to a minimal self-contained example that > > reproduces > > > > the > > > > > behavior I can take a closer look. > > > > > > > > > > On Sat, Feb 4, 2017 at 1:47 PM, Edgar H <kaotix...@gmail.com> > wrote: > > > > > > > > > > > I've been struggling with this problem for quite some time now as > > > it's > > > > my > > > > > > very first time doing an application related to streaming and I > > just > > > > > can't > > > > > > figure out why. Here's the problem... > > > > > > > > > > > > What I'm trying to achieve is to send a command's output as an > > input > > > > for > > > > > > the next one, which is basically what the pipe operator does. As > I > > > knew > > > > > > this couldn't be executed directly with Exec library from Apache > > > > Commons > > > > > I > > > > > > started looking for ways to solve this. I've seen quite a few > > > examples > > > > of > > > > > > similar things to this but none of them covers my situation: > > > > > > > > > > > > I have two Java applications separated, one is the main > application > > > and > > > > > the > > > > > > second one is initialized by the first one. This second > > applications > > > > > sends > > > > > > to the Standard Output bytes, which FFMPEG should receive. > > > > > > > > > > > > The code that I have so far is the following one... > > > > > > > > > > > > public void initStream(String path) { > > > > > > File file = new File(path); > > > > > > for (File s : file.listFiles()) { > > > > > > if (s.getName().equals("ffmpeg.exe")) { > > > > > > try { > > > > > > > > > > > > // Second app, supposedly, writes here. > > > > > > PipedOutputStream output = new > PipedOutputStream(); > > > > > > > > > > > > DefaultExecutor executor = new DefaultExecutor(); > > > > > > //DefaultExecutor executorFFMPEG = new > > > > DefaultExecutor(); > > > > > > executor.setWorkingDirectory(file); > > > > > > //executor.setWorkingDirectory(file); > > > > > > > > > > > > CommandLine commandLine = new > > > > > > CommandLine(s.getParentFile().getAbsolutePath()); > > > > > > System.out.println("Path: " + > > > commandLine.toString()); > > > > > > > > > > > > String executeMe = "java -jar streamer.jar"; > > > > > > commandLine = CommandLine.parse(executeMe); > > > > > > > > > > > > System.out.println("[testing] streamer about to > > > > > launch."); > > > > > > executor.setStreamHandler(new > > > PumpStreamHandler(output, > > > > > > null)); > > > > > > executor.execute(commandLine, new > > > > > > DefaultExecuteResultHandler()); > > > > > > System.out.println("[testing] streamer > started."); > > > > > > > > > > > > PipedInputStream input = new PipedInputStream(); > > > > > > output.connect(input); > > > > > > > > > > > > String feedMe = "ffmpeg"; // more attributes here > > > > > > commandLine = CommandLine.parse(feedMe); > > > > > > > > > > > > System.out.println("[testing] ffmpeg about to > > > > launch."); > > > > > > executor.setStreamHandler(new > > PumpStreamHandler(null, > > > > > > null, input)); > > > > > > executor.execute(commandLine, new > > > > > > DefaultExecuteResultHandler()); > > > > > > System.out.println("[testing] ffmpeg started."); > > > > > > > > > > > > } catch (IOException e) { > > > > > > e.printStackTrace(); > > > > > > } > > > > > > } > > > > > > }} > > > > > > > > > > > > And the code for the second application (the zone where I send > data > > > to > > > > > > the stdout) is the following one. > > > > > > > > > > > > static OutputStream stdout = System.out; > > > > > > > > > > > > (more code and other things around here) > > > > > > > > > > > > try { > > > > > > line = (TargetDataLine) mixer.getLine(info); > > > > > > line.open(format); > > > > > > > > > > > > int bytesRead, CHUNK_SIZE = 4096; > > > > > > byte[] data = new byte[line.getBufferSize() / 5]; > > > > > > > > > > > > line.start(); > > > > > > > > > > > > while (true) { > > > > > > bytesRead = line.read(data, 0, CHUNK_SIZE); > > > > > > stdout.write(data, 0, bytesRead); > > > > > > stdout.flush(); > > > > > > } > > > > > > > > > > > > } catch (LineUnavailableException ex) { > > > > > > System.out.println("Line is unavailable."); > > > > > > ex.printStackTrace(); > > > > > > } > > > > > > > > > > > > At the moment, no communication seems to be made between both > > > commands > > > > as > > > > > > ffmpeg isn't receiving anything. > > > > > > > > > > > > Hope you guys can tell what I'm missing out, or if I'm > incorrectly > > > > > working > > > > > > with the library thinking it works in a way when it works in > > another > > > > one. > > > > > > > > > > > > > > > > > > > > >
