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Why storage access functions not working on android 10 API-29 ? error=13, Permission denied ?
8 janvier 2021, par Rpatel

This example code is to create video from images and music.
Code running on till API level 28 but when I just upgrade to
Build version 29 then it starts crashing. I tried the most solution
but could not find the proper reason and solution.

Please let me know...



2


021-01-08 19:48:16.045 18413-19578/com.example.photovideomaker E/audio: io
 java.io.IOException: Cannot run program "/data/user/0/com.example.photovideomaker/files/ffmpeg": error=13, Permission denied
 at java.lang.ProcessBuilder.start(ProcessBuilder.java:1050)
 at java.lang.Runtime.exec(Runtime.java:698)
 at java.lang.Runtime.exec(Runtime.java:563)
 at com.example.photovideomaker.service.CreateVideoService.joinAudio(CreateVideoService.java:252)
 at com.example.photovideomaker.service.CreateVideoService.createVideo(CreateVideoService.java:89)
 at com.example.photovideomaker.service.CreateVideoService.onHandleIntent(CreateVideoService.java:83)
 at android.app.IntentService$ServiceHandler.handleMessage(IntentService.java:78)
 at android.os.Handler.dispatchMessage(Handler.java:107)
 at android.os.Looper.loop(Looper.java:214)
 at android.os.HandlerThread.run(HandlerThread.java:67)
 Caused by: java.io.IOException: error=13, Permission denied
 at java.lang.UNIXProcess.forkAndExec(Native Method)
 at java.lang.UNIXProcess.<init>(UNIXProcess.java:133)
 at java.lang.ProcessImpl.start(ProcessImpl.java:141)
 at java.lang.ProcessBuilder.start(ProcessBuilder.java:1029)
 at java.lang.Runtime.exec(Runtime.java:698) 
 at java.lang.Runtime.exec(Runtime.java:563) 
 at com.example.photovideomaker.service.CreateVideoService.joinAudio(CreateVideoService.java:252) 
 at com.example.photovideomaker.service.CreateVideoService.createVideo(CreateVideoService.java:89) 
 at com.example.photovideomaker.service.CreateVideoService.onHandleIntent(CreateVideoService.java:83) 
 at android.app.IntentService$ServiceHandler.handleMessage(IntentService.java:78) 
 at android.os.Handler.dispatchMessage(Handler.java:107) 
 at android.os.Looper.loop(Looper.java:214) 
 at android.os.HandlerThread.run(HandlerThread.java:67) 
</init>



This function throwing the error "On Process.runtime"




private void createVideo() {
 long startTime = System.currentTimeMillis();
 toatalSecond = (application.getSecond() * ((float) application.getSelectedImages().size())) - DEFAULT_FONT_SCALE;
 joinAudio();
 while (true) {
 if (ImageCreatorService.isImageComplate) {
 Log.e("image creation ", " complte");

 break;
 }else {
 Log.e("image creation ", "not complte");
 }
 }
 Log.e("createVideo", "video create start");
 new File(FileUtils.TEMP_DIRECTORY, "video.txt").delete();
 for (int i = 0; i < application.videoImages.size(); i++) {
 appendVideoLog(String.format("file '%s'", application.videoImages.get(i)));
 }

 File r0=new File(FileUtils.TEMP_DIRECTORY, "video.txt");
 String videoPath = new File(FileUtils.APP_DIRECTORY, getVideoName()).getAbsolutePath();
 String[] inputCode = application.getMusicData() != null ? new String[]{
 FileUtils.getFFmpeg(this), "-r",
 String.valueOf(BitmapDescriptorFactory.HUE_ORANGE / application.getSecond()),
 "-f", "concat", "-safe", "0", "-i", r0.getAbsolutePath(), "-i",
 audioFile.getAbsolutePath(), "-strict", "experimental", "-r", "30",
 "-t", String.valueOf(toatalSecond), "-c:v", "libx264", "-preset",
 "ultrafast", "-pix_fmt", "yuv420p", "-ac", "2", videoPath}
 : new String[]{FileUtils.getFFmpeg(this),
 "-r", String.valueOf(BitmapDescriptorFactory.HUE_ORANGE / application.getSecond()),
 "-f", "concat", "-i", r0.getAbsolutePath(), "-r", "30", "-c:v", "libx264", "-preset", "ultrafast", "-pix_fmt", "yuv420p", videoPath};

 System.gc();
 Process process = null;
 try {
 process = Runtime.getRuntime().exec(inputCode);
 while (!Util.isProcessCompleted(process)) {
 BufferedReader reader = new BufferedReader(new InputStreamReader(process.getErrorStream()));
 while (true) {
 String line = reader.readLine();
 if (line != null) {
 Log.e("process", line);
 appendLog(line);
 final int incr = durationToprogtess(line);
 new Handler(Looper.getMainLooper()).post(new Runnable() {
 public void run() {
 if (receiver != null) {
 receiver.onVideoProgressUpdate(incr);
 }
 }
 });
 mBuilder.setProgress(100, ((int) ((75.0f * ((float) incr)) / 100.0f)) + 25, false);
 mNotifyManager.notify(1001, mBuilder.build());
 }else {
 break;
 }
 }
 }
 } catch (IOException e) {
 e.printStackTrace();
 } finally {
 Util.destroyProcess(process);
 }
 mBuilder.setContentText("Video created :" + FileUtils.getDuration(System.currentTimeMillis() - startTime)).setProgress(0, 0, false);
 mNotifyManager.notify(1001, mBuilder.build());
 try {
 long fileSize = new File(videoPath).length();
 String artist = getResources().getString(R.string.artist_name);
 ContentValues values = new ContentValues();
 values.put("_data", videoPath);
 values.put("_size", Long.valueOf(fileSize));
 values.put("mime_type", "video/mp4");
 values.put("artist", artist);
 values.put("duration", Float.valueOf(toatalSecond * 1000.0f));
 getContentResolver().insert(Media.getContentUriForPath(videoPath), values);
 } catch (Exception e2) {
 e2.printStackTrace();
 }
 try {
 sendBroadcast(new Intent("android.intent.action.MEDIA_SCANNER_SCAN_FILE", Uri.fromFile(new File(videoPath))));
 } catch (Exception e3) {
 e3.printStackTrace();
 }

 buildNotification(videoPath);
 final String str = videoPath;
 new Handler(Looper.getMainLooper()).post(new Runnable() {
 public void run() {
 if (receiver != null) {
 receiver.onVideoProgressUpdate(100);
 receiver.onProgressFinish(str);
 }
 }
 });
 FileUtils.deleteTempDir();
 stopSelf();
 }


I have tried checking the directory in storage and check mkdir is working or not but this function purely works for creating video from a collection of images, themes, and audio. as per android


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