5

I am using WritingMinds/ffmpeg-android-java in application.

here is my code

loadFFmpeg(); String cmd="ffmpeg -i /storage/emulated/0/media/audio/a.mp3 -i /storage/emulated/0/recording.3gp -filter_complex \"[0:a][1:a]amerge=inputs=2[aout]\" -map \"[aout]\" " + outputFile; executeFFmpeg(cmd.split(" "));

and

private void loadFFmpeg() { FFmpeg ffmpeg = FFmpeg.getInstance(MainActivity.this.getApplicationContext()); try { ffmpeg.loadBinary(new LoadBinaryResponseHandler() { @Override public void onStart() {} @Override public void onFailure() {} @Override public void onSuccess() {} @Override public void onFinish() {} }); } catch (FFmpegNotSupportedException e) { // Handle if FFmpeg is not supported by device } } private void executeFFmpeg(String[] cmd) { /*String workFolder = getApplicationContext().getFilesDir() + "/ffmpeg"; String environment = Environment.getExternalStorageDirectory().getAbsolutePath(); Map<String, String> map = new HashMap<String, String>(); map.put("Working Directory", workFolder); map.put("Environment",environment);*/ FFmpeg ffmpeg = FFmpeg.getInstance(MainActivity.this.getApplicationContext()); try { // to execute "ffmpeg -version" command you just need to pass "-version" ffmpeg.execute(cmd, new ExecuteBinaryResponseHandler() { @Override public void onStart() {} @Override public void onProgress(String message) {} @Override public void onFailure(String message) {} @Override public void onSuccess(String message) {} @Override public void onFinish() { stop.setEnabled(false); play.setEnabled(true); } }); } catch (FFmpegCommandAlreadyRunningException e) { // Handle if FFmpeg is already running } }

but I am getting following error

6784-6962/com.flipartstudio.playandrecord E/FFmpeg: Exception while trying to run: [Ljava.lang.String;@41803270 java.io.IOException: Error running exec(). Command: [/data/data/com.flipartstudio.playandrecord/files/ffmpeg, /system/bin/ls, -l, /data/data/com.example.foo/files/ffmpeg] Working Directory: null Environment: null at java.lang.ProcessManager.exec(ProcessManager.java:211) at java.lang.Runtime.exec(Runtime.java:168) at java.lang.Runtime.exec(Runtime.java:123) at com.github.hiteshsondhi88.libffmpeg.ShellCommand.run(ShellCommand.java:10) at com.github.hiteshsondhi88.libffmpeg.FFmpegExecuteAsyncTask.doInBackground(FFmpegExecuteAsyncTask.java:38) at com.github.hiteshsondhi88.libffmpeg.FFmpegExecuteAsyncTask.doInBackground(FFmpegExecuteAsyncTask.java:10) at android.os.AsyncTask$2.call(AsyncTask.java:287) at java.util.concurrent.FutureTask.run(FutureTask.java:234) at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573) at java.lang.Thread.run(Thread.java:856) Caused by: java.io.IOException: No such file or directory at java.lang.ProcessManager.exec(Native Method) at java.lang.ProcessManager.exec(ProcessManager.java:209) at java.lang.Runtime.exec(Runtime.java:168)  at java.lang.Runtime.exec(Runtime.java:123)  at com.github.hiteshsondhi88.libffmpeg.ShellCommand.run(ShellCommand.java:10)  at com.github.hiteshsondhi88.libffmpeg.FFmpegExecuteAsyncTask.doInBackground(FFmpegExecuteAsyncTask.java:38)  at com.github.hiteshsondhi88.libffmpeg.FFmpegExecuteAsyncTask.doInBackground(FFmpegExecuteAsyncTask.java:10)  at android.os.AsyncTask$2.call(AsyncTask.java:287)  at java.util.concurrent.FutureTask.run(FutureTask.java:234)  at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)  at java.lang.Thread.run(Thread.java:856) 

I have also added

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" /> <uses-permission android:name="android.permission.STORAGE" />
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3 Answers 3

Reset to default
4

your problem is that you declear FFmpeg once in loadFFmpeg() method and once in executeFFmpeg() . so in executeFFmpeg() your FFmpeg isn't loaded.

Solution :

your code should be like this :

public class Main extends Activity{ FFmpeg ffmpeg; Context context; protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); context = this; loadFFmpeg(); String cmd="ffmpeg -i /storage/emulated/0/media/audio/a.mp3 -i /storage /emulated/0/recording.3gp -filter_complex \"[0:a][1:a]amerge=inputs=2[aout]\" -map \"[aout]\" " + outputFile; executeFFmpeg(cmd.split(" ")); } private void loadFFmpeg() { ffmpeg = FFmpeg.getInstance(context); try { ffmpeg.loadBinary(new LoadBinaryResponseHandler() { @Override public void onStart() {} @Override public void onFailure() {} @Override public void onSuccess() {} @Override public void onFinish() {} }); } catch (FFmpegNotSupportedException e) { // Handle if FFmpeg is not supported by device } } private void executeFFmpeg(String[] cmd) { try { ffmpeg.execute(cmd, new ExecuteBinaryResponseHandler() { @Override public void onStart() {} @Override public void onProgress(String message) {} @Override public void onFailure(String message) {} @Override public void onSuccess(String message) {} @Override public void onFinish() { stop.setEnabled(false); play.setEnabled(true); } }); } catch (FFmpegCommandAlreadyRunningException e) { // Handle if FFmpeg is already running } } }
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2 
Try this: public class MainActivity extends Activity{ FFmpeg ffmpeg; Context context; protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); context = this; loadFFmpeg(); String cmd="-i /storage/emulated/0/media/audio/a.mp3 -i /storage /emulated/0/recording.3gp -filter_complex \"[0:a][1:a]amerge=inputs=2[aout]\" -map \"[aout]\" " + outputFile; executeFFmpeg(cmd.split(" ")); } private void loadFFmpeg() { ffmpeg = FFmpeg.getInstance(context); try { ffmpeg.loadBinary(new LoadBinaryResponseHandler() { @Override public void onStart() {} @Override public void onFailure() {} @Override public void onSuccess() {} @Override public void onFinish() {} }); } catch (FFmpegNotSupportedException e) { // Handle if FFmpeg is not supported by device } } private void executeFFmpeg(String[] cmd) { try { ffmpeg.execute(cmd, new ExecuteBinaryResponseHandler() { @Override public void onStart() {} @Override public void onProgress(String message) {} @Override public void onFailure(String message) {} @Override public void onSuccess(String message) {} @Override public void onFinish() { stop.setEnabled(false); play.setEnabled(true); } }); } catch (FFmpegCommandAlreadyRunningException e) { // Handle if FFmpeg is already running } } }
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1

Reason:
ffmpeg.loadBinary is Async. It returns immediately but the task doesn't complete at that time.

Solution:
You should put your code in onSuccess() of ffmpeg.loadBinary like this:

ffmpeg = FFmpeg.getInstance(context); try { ffmpeg.loadBinary(new LoadBinaryResponseHandler() { @Override public void onStart() {} @Override public void onFailure() {} @Override public void onSuccess() { String cmd="ffmpeg -i /storage/emulated/0/media/audio/a.mp3 -i /storage/emulated/0/recording.3gp -filter_complex \"[0:a][1:a]amerge=inputs=2[aout]\" -map \"[aout]\" " + outputFile; executeFFmpeg(cmd.split(" ")); } @Override public void onFinish() {} }); } catch (FFmpegNotSupportedException e) { // Handle if FFmpeg is not supported by device }
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