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• How to add a watermark to video on firebase storage using ffmpeg

  31 décembre 2020, par awabs

  I am trying to add a watermark to a video using firebase functions and ffmpeg, but I do know the right code for it. I know is that ffmpen is now available in google cloud env so this approach should work.
Any help is appreciated.

  


  const functions = require('firebase-functions');
const { Storage } = require('@google-cloud/storage');
const projectId = 'video-demo-a57fa';
let gcs = new Storage ({
  projectId
});
const os =require('os');
const path =require('path');
const spawn = require('child-process-promise').spawn;


exports.addLogo = functions.storage.object().onFinalize(event =>{
   
    const bucket =event.bucket;
    const contentType =event.contentType;
    const filePath =event.name;
    console.log(path.dirname(filePath));

    console.log('File change detected, function execution started');


    if (path.basename(filePath).startsWith('resized-')) {
        console.log('We already renamed that file!');
        return;
    }

    const destBucket = gcs.bucket(bucket);
    const tmpFilePath = path.join(os.tmpdir(), path.basename(filePath));
    const metadata = { contentType: contentType };
    return destBucket.file(filePath).download({
        destination: tmpFilePath
    }).then(()=>{
        return spawn('ffmpeg',['-i', 'video.mp4'], tmpFilePath )
    }).then(() => {
        console.log(tmpFilePath);
        return destBucket.upload(tmpFilePath, {
            destination: path.dirname(filePath)+'/resized-' + path.basename(filePath),
            metadata: metadata
            
        })
    }).catch(err=>{
        console.log(err);
    });
})


  


• How to add a watermark to video on firebase storage using firebase functions and ffmpeg

  1er janvier 2021, par awabs

  I am trying to add a watermark to a video using firebase functions and ffmpeg, but I do know the right code for it. I know is that ffmpen is now available in google cloud env so this approach should work.
But I think that the problem is that ffmpeg is not able to locate watermark.png, where should I put this image file ?
Any help is appreciated.

  


  const functions = require('firebase-functions');
const { Storage } = require('@google-cloud/storage');
const projectId = 'video-demo-a57fa';
let gcs = new Storage ({
  projectId
});
const os =require('os');
const path =require('path');
const spawn = require('child-process-promise').spawn;


exports.addLogo = functions.storage.object().onFinalize(event =>{
   
    const bucket =event.bucket;
    const contentType =event.contentType;
    const filePath =event.name;
    console.log(path.dirname(filePath));

    console.log('File change detected, function execution started');


    if (path.basename(filePath).startsWith('resized-')) {
        console.log('We already renamed that file!');
        return;
    }

    const destBucket = gcs.bucket(bucket);
    const tmpFilePath = path.join(os.tmpdir(), path.basename(filePath));
    const metadata = { contentType: contentType };
    return destBucket.file(filePath).download({
        destination: tmpFilePath
    }).then(()=>{
      return spawn('ffmpeg', ['-i', tmpFilePath, '-i', './watermark.png', '-filter_complex', '"overlay=x=(main_w-overlay_w)/2:y=(main_h-overlay_h)/2"', tmpFilePath]);
    }).then(() => {
        console.log(tmpFilePath);
        return destBucket.upload(tmpFilePath, {
            destination: path.dirname(filePath)+'/resized-' + path.basename(filePath),
            metadata: metadata
            
        })
    }).catch(err=>{
        console.log(err);
    });
})


  


• 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&#xA;    java.io.IOException: Cannot run program "/data/user/0/com.example.photovideomaker/files/ffmpeg": error=13, Permission denied&#xA;        at java.lang.ProcessBuilder.start(ProcessBuilder.java:1050)&#xA;        at java.lang.Runtime.exec(Runtime.java:698)&#xA;        at java.lang.Runtime.exec(Runtime.java:563)&#xA;        at com.example.photovideomaker.service.CreateVideoService.joinAudio(CreateVideoService.java:252)&#xA;        at com.example.photovideomaker.service.CreateVideoService.createVideo(CreateVideoService.java:89)&#xA;        at com.example.photovideomaker.service.CreateVideoService.onHandleIntent(CreateVideoService.java:83)&#xA;        at android.app.IntentService$ServiceHandler.handleMessage(IntentService.java:78)&#xA;        at android.os.Handler.dispatchMessage(Handler.java:107)&#xA;        at android.os.Looper.loop(Looper.java:214)&#xA;        at android.os.HandlerThread.run(HandlerThread.java:67)&#xA;     Caused by: java.io.IOException: error=13, Permission denied&#xA;        at java.lang.UNIXProcess.forkAndExec(Native Method)&#xA;        at java.lang.UNIXProcess.<init>(UNIXProcess.java:133)&#xA;        at java.lang.ProcessImpl.start(ProcessImpl.java:141)&#xA;        at java.lang.ProcessBuilder.start(ProcessBuilder.java:1029)&#xA;        at java.lang.Runtime.exec(Runtime.java:698)&#xA0;&#xA;        at java.lang.Runtime.exec(Runtime.java:563)&#xA0;&#xA;        at com.example.photovideomaker.service.CreateVideoService.joinAudio(CreateVideoService.java:252)&#xA0;&#xA;        at com.example.photovideomaker.service.CreateVideoService.createVideo(CreateVideoService.java:89)&#xA0;&#xA;        at com.example.photovideomaker.service.CreateVideoService.onHandleIntent(CreateVideoService.java:83)&#xA0;&#xA;        at android.app.IntentService$ServiceHandler.handleMessage(IntentService.java:78)&#xA0;&#xA;        at android.os.Handler.dispatchMessage(Handler.java:107)&#xA0;&#xA;        at android.os.Looper.loop(Looper.java:214)&#xA0;&#xA;        at android.os.HandlerThread.run(HandlerThread.java:67)&#xA0;&#xA;</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