FFmpeg throws exception while process the commands

Question

I am executing commands through process but it always throw this error anyone help me ?

FFMPEGCommand:

 String[] ffmpegCommand = {"/data/data/com.example.app/ffmpeg", "-r", ""+VIDEO_FRAME_RATE, "-b", "1000", "-vcodec", "mjpeg", "-i", Environment.getExternalStorageDirectory().getPath() + "/com.example.app/frame_%05d.jpg", Environment.getExternalStorageDirectory().getPath() + "/video.mov"}; ffmpegProcess = new ProcessBuilder(ffmpegCommand).redirectErrorStream(true).start(); W/System.err(29844): java.io.IOException: Error running exec(). Command: [/data/data/com.example.app/ffmpeg, -r, 18, -b, 1000, -vcodec, mjpeg, -i, /storage/emulated/0/com.example.app/frame_%05d.jpg, /storage/emulated/0/video.mov] Working Directory: null Environment: [ANDROID_ROOT=/system, EMULATED_STORAGE_SOURCE=/mnt/shell/emulated, LOOP_MOUNTPOINT=/mnt/obb, EMULATED_STORAGE_TARGET=/storage/emulated, ANDROID_BOOTLOGO=1, LD_LIBRARY_PATH=/vendor/lib:/system/lib, EXTERNAL_STORAGE=/storage/emulated/legacy, ANDROID_SOCKET_zygote=11, ANDROID_DATA=/data, PATH=/sbin:/vendor/bin:/system/sbin:/system/bin:/system/xbin, ANDROID_ASSETS=/system/app, ASEC_MOUNTPOINT=/mnt/asec, BOOTCLASSPATH=/system/framework/core.jar:/system/framework/conscrypt.jar:/system/framework/okhttp.jar:/system/framework/core-junit.jar:/system/framework/bouncycastle.jar:/system/framework/ext.jar:/system/framework/framework.jar:/system/framework/framework2.jar:/system/framework/telephony-common.jar:/system/framework/voip-common.jar:/system/framework/mms-common.jar:/system/framework/android.policy.jar:/system/framework/services.jar:/system/framework/apache-xml.jar:/system/framework/webviewchromium.jar:/system/framework/oem-services.jar:/system/framework/qcmediaplayer.jar, ANDROID_PROPERTY_WORKSPACE=9,0, ANDROID_STORAGE=/storage] 06-02 12:21:36.660: W/System.err(29844): at java.lang.ProcessManager.exec(ProcessManager.java:211) 06-02 12:21:36.660: W/System.err(29844): at java.lang.ProcessBuilder.start(ProcessBuilder.java:195) 06-02 12:21:36.662: W/System.err(29844): at com.example.app.FFMPEGRecorderActivity$ProcessVideo.doInBackground(FFMPEGRecorderActivity.java:1448) 06-02 12:21:36.662: W/System.err(29844): at com.example.app.FFMPEGRecorderActivity$ProcessVideo.doInBackground(FFMPEGRecorderActivity.java:1) 06-02 12:21:36.662: W/System.err(29844): at android.os.AsyncTask$2.call(AsyncTask.java:288) 06-02 12:21:36.663: W/System.err(29844): at java.util.concurrent.FutureTask.run(FutureTask.java:237) 06-02 12:21:36.663: W/System.err(29844): at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231) 06-02 12:21:36.663: W/System.err(29844): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112) 06-02 12:21:36.663: W/System.err(29844): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587) 06-02 12:21:36.663: W/System.err(29844): at java.lang.Thread.run(Thread.java:841) 06-02 12:21:36.664: W/System.err(29844): Caused by: java.io.IOException: No such file or directory 06-02 12:21:36.665: W/System.err(29844): at java.lang.ProcessManager.exec(Native Method) 06-02 12:21:36.666: W/System.err(29844): at java.lang.ProcessManager.exec(ProcessManager.java:209) 06-02 12:21:36.667: W/System.err(29844): ... 9 more

What is the actual ffmpeg console/log output resulting from the ffmpeg command? — llogan
– llogan, Commented Jun 2, 2014 at 15:34

Robert Rowntree · Accepted Answer · 2014-06-04 03:19:34Z

From quick look at your error, there is null instead of full path to the input file for ffmpeg.

So, replace

 Environment.getExternalStorageDirectory().getPath() + "/com.example.app/frame_%05d.jpg"

with follow pseudo code.

get a File instance on the input jpg.

 myInputJpg.getAbsolutePath()

may provide a non-null ffmpeg file handle for the input...

PS you should see stuff in the logcat about the native library being loaded. Thats the wrapper for the ffmpeg native stuff.
Thanks for the answer. Yes your concern is correct but I have fixed it with the answer below.

Ahmad Arslan · Accepted Answer · 2014-06-04 05:03:55Z

Its been fixed while I have re-execute the .so files and makes path like this:

String[] ffmpegCommand = {"/data/data/com.example.app/ffmpeg", "-r", ""+VIDEO_FRAME_RATE, "-vcodec", "mjpeg", "-i", Environment.getExternalStorageDirectory().getPath() + "/com.example.app/frame_%105d.jpg", Environment.getExternalStorageDirectory().getPath() + "/com.example.app/video.mov"}; ProcessBuilder builder = new ProcessBuilder(ffmpegCommand); Map<String, String> env = builder.environment(); env.put("LD_LIBRARY_PATH", "/data/data/com.example.app:$LD_LIBRARY_PATH"); ffmpegProcess = builder.redirectErrorStream(true).start(); OutputStream ffmpegOutStream = ffmpegProcess.getOutputStream(); BufferedReader reader = new BufferedReader(new InputStreamReader(ffmpegProcess.getInputStream())); String line; Log.v("ss","***Starting FFMPEG***"); while ((line = reader.readLine()) != null) { Log.v("asd","***"+line+"***"); } Log.v("asdas","***Ending FFMPEG***");

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FFmpeg throws exception while process the commands

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