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• How to blend/merge two videos in android programmatically

  25 octobre 2015, par endryha

  As description says I am trying to create a video which consists of background video and semi-transparent video overlay on top of it.

  My initial attempt was to use ffmpeg for android https://github.com/WritingMinds/ffmpeg-android-java and use blend filter in overlay mode.

  But it turned out that ffmpeg android library is built on top of ffmpeg 2.4 but blend filter is available since ffmpeg 2.6. So far ffmpeg failed for me and I am looking for alternative solution.

  Any advices are warmly appreciated.

  UPDATE#1

  I finally managed to build ffmpeg 2.6.4 for android which contains blend filter but another issue appeared. When it start video processing it just stops in the beginning and never ends, there is not output from ffmpeg tool, no errors, no warnings, there is nothing that can help me to trace down the problem.

  On android device it runs following command :

  /data/user/0/com.test.app/files/ffmpeg 
  
  -i /storage/emulated/0/Android/data/com.test.app/files/video/vid1.mp4 
  
  -i /storage/emulated/0/Android/data/com.test.app/files/video/overlay.mp4 
  
  -filter_complex blend=all_mode='overlay':all_opacity=0.8" 
  
  -strict -2 /storage/emulated/0/Android/data/com.test.app/files/video/blended.mp4

  And there is following output :

  ffmpeg version n2.6.4 Copyright (c) 2000-2015 the FFmpeg developers
  
     built with gcc 4.8 (GCC)
  
     configuration: --target-os=linux --cross-prefix=/media/ubuntu/data/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/media/ubuntu/data/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/media/ubuntu/data/ffmpeg-android/ffmpeg-pkg-config --prefix=/media/ubuntu/data/ffmpeg-android/build/armeabi-v7a-neon --extra-cflags='-I/media/ubuntu/data/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all -mfpu=neon' --extra-ldflags='-L/media/ubuntu/data/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
  
     libavutil      54. 20.100 / 54. 20.100
  
     libavcodec     56. 26.100 / 56. 26.100
  
     libavformat    56. 25.101 / 56. 25.101
  
     libavdevice    56.  4.100 / 56.  4.100
  
     libavfilter     5. 11.102 /  5. 11.102
  
     libswscale      3.  1.101 /  3.  1.101
  
     libswresample   1.  1.100 /  1.  1.100
  
     libpostproc    53.  3.100 / 53.  3.100
  
   [h264 @ 0xb5e03000] no frame!
  
   [aac @ 0xb5e03400] Input buffer exhausted before END element found
  
   Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/Android/data/com.test.app/files/video/vid1.mp4':
  
     Metadata:
  
       major_brand     : mp42
  
       minor_version   : 0
  
       compatible_brands: isommp42
  
       creation_time   : 2015-08-30 17:19:07
  
     Duration: 00:00:05.03, start: 0.000000, bitrate: 3449 kb/s
  
       Stream #0:0(eng): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p, 640x640, 3381 kb/s, SAR 1:1 DAR 1:1, 30 fps, 30 tbr, 90k tbn, 180k tbc (default)
  
       Metadata:
  
         creation_time   : 2015-08-30 17:19:07
  
         handler_name    : VideoHandle
  
       Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 63 kb/s (default)
  
       Metadata:
  
         creation_time   : 2015-08-30 17:19:07
  
         handler_name    : SoundHandle
  
   [h264 @ 0xb5e03800] no frame!
  
   [aac @ 0xb5e04400] Input buffer exhausted before END element found
  
   Input #1, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/Android/data/com.test.app/files/video/overlay.mp4':
  
     Metadata:
  
       major_brand     : mp42
  
       minor_version   : 0
  
       compatible_brands: isommp42
  
       creation_time   : 2015-08-30 17:19:07
  
     Duration: 00:00:05.03, start: 0.000000, bitrate: 3449 kb/s
  
       Stream #1:0(eng): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p, 640x640, 3381 kb/s, SAR 1:1 DAR 1:1, 30 fps, 30 tbr, 90k tbn, 180k tbc (default)
  
       Metadata:
  
         creation_time   : 2015-08-30 17:19:07
  
         handler_name    : VideoHandle
  
       Stream #1:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 63 kb/s (default)
  
       Metadata:
  
         creation_time   : 2015-08-30 17:19:07
  
         handler_name    : SoundHandle

  After this output ffmpeg process is still running but it doesn’t provide any response... I am not sure how to deal with such issue, maybe I can try to use different codecs which works better on android or enable some debugging logging in ffmpeg.
  Any advices would help.

  UPDATE#2

  Thank you

• How to blend/merge two videos in android programmatically

  7 août 2017, par endryha

  As description says I am trying to create a video which consists of background video and semi-transparent video overlay on top of it.

  My initial attempt was to use ffmpeg for android https://github.com/WritingMinds/ffmpeg-android-java and use blend filter in overlay mode.

  But it turned out that ffmpeg android library is built on top of ffmpeg 2.4 but blend filter is available since ffmpeg 2.6. So far ffmpeg failed for me and I am looking for alternative solution.

  Any advices are warmly appreciated.

  UPDATE#1

  I finally managed to build ffmpeg 2.6.4 for android which contains blend filter but another issue appeared. When it start video processing it just stops in the beginning and never ends, there is not output from ffmpeg tool, no errors, no warnings, there is nothing that can help me to trace down the problem.

  On android device it runs following command :

  /data/user/0/com.test.app/files/ffmpeg 
  
  -i /storage/emulated/0/Android/data/com.test.app/files/video/vid1.mp4 
  
  -i /storage/emulated/0/Android/data/com.test.app/files/video/overlay.mp4 
  
  -filter_complex blend=all_mode='overlay':all_opacity=0.8" 
  
  -strict -2 /storage/emulated/0/Android/data/com.test.app/files/video/blended.mp4

  And there is following output :

  ffmpeg version n2.6.4 Copyright (c) 2000-2015 the FFmpeg developers
  
     built with gcc 4.8 (GCC)
  
     configuration: --target-os=linux --cross-prefix=/media/ubuntu/data/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/media/ubuntu/data/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/media/ubuntu/data/ffmpeg-android/ffmpeg-pkg-config --prefix=/media/ubuntu/data/ffmpeg-android/build/armeabi-v7a-neon --extra-cflags='-I/media/ubuntu/data/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all -mfpu=neon' --extra-ldflags='-L/media/ubuntu/data/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
  
     libavutil      54. 20.100 / 54. 20.100
  
     libavcodec     56. 26.100 / 56. 26.100
  
     libavformat    56. 25.101 / 56. 25.101
  
     libavdevice    56.  4.100 / 56.  4.100
  
     libavfilter     5. 11.102 /  5. 11.102
  
     libswscale      3.  1.101 /  3.  1.101
  
     libswresample   1.  1.100 /  1.  1.100
  
     libpostproc    53.  3.100 / 53.  3.100
  
   [h264 @ 0xb5e03000] no frame!
  
   [aac @ 0xb5e03400] Input buffer exhausted before END element found
  
   Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/Android/data/com.test.app/files/video/vid1.mp4':
  
     Metadata:
  
       major_brand     : mp42
  
       minor_version   : 0
  
       compatible_brands: isommp42
  
       creation_time   : 2015-08-30 17:19:07
  
     Duration: 00:00:05.03, start: 0.000000, bitrate: 3449 kb/s
  
       Stream #0:0(eng): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p, 640x640, 3381 kb/s, SAR 1:1 DAR 1:1, 30 fps, 30 tbr, 90k tbn, 180k tbc (default)
  
       Metadata:
  
         creation_time   : 2015-08-30 17:19:07
  
         handler_name    : VideoHandle
  
       Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 63 kb/s (default)
  
       Metadata:
  
         creation_time   : 2015-08-30 17:19:07
  
         handler_name    : SoundHandle
  
   [h264 @ 0xb5e03800] no frame!
  
   [aac @ 0xb5e04400] Input buffer exhausted before END element found
  
   Input #1, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/Android/data/com.test.app/files/video/overlay.mp4':
  
     Metadata:
  
       major_brand     : mp42
  
       minor_version   : 0
  
       compatible_brands: isommp42
  
       creation_time   : 2015-08-30 17:19:07
  
     Duration: 00:00:05.03, start: 0.000000, bitrate: 3449 kb/s
  
       Stream #1:0(eng): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p, 640x640, 3381 kb/s, SAR 1:1 DAR 1:1, 30 fps, 30 tbr, 90k tbn, 180k tbc (default)
  
       Metadata:
  
         creation_time   : 2015-08-30 17:19:07
  
         handler_name    : VideoHandle
  
       Stream #1:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 63 kb/s (default)
  
       Metadata:
  
         creation_time   : 2015-08-30 17:19:07
  
         handler_name    : SoundHandle

  After this output ffmpeg process is still running but it doesn’t provide any response... I am not sure how to deal with such issue, maybe I can try to use different codecs which works better on android or enable some debugging logging in ffmpeg.
  Any advices would help.

  UPDATE#2

  Thank you

• 'Source code does not match byte code' Android Studio

  26 août 2020, par Connoe

  I'm developing an Android video editing app using FFmpeg libraries in Android Studio version 4.01. When I try to debug, the debugger steps into the decompiler and flashes, 'Source code does not match byte code' across multiple steps through the decompiled code. The debugger also seems to be jumping around the decompiled code semi-randomly, for example : here, where logSlowDispatch is false but the debugger steps into the contents of the if statement anyway without checking and flashes 'Source code does not match byte code'. I've looked at alot of posts about this problem and have tried many of the suggested solutions from invalidate cache/restart to a fresh install of Android Studio to no avail. I've read that redundant or outdated gradle dependencies might have something to do with this, but removing some of these dependencies hasn't helped :

  


  apply plugin: 'com.android.application'

android {
    compileSdkVersion 29
    defaultConfig {
        applicationId "com.example.capstoneapplication"
        minSdkVersion 21
        targetSdkVersion 29
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
        ndkVersion "21.3.6528147"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])

    implementation 'com.android.support.constraint:constraint-layout:2.0.0'

    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'

    implementation 'com.writingminds:FFmpegAndroid:0.3.2'

    implementation 'org.florescu.android.rangeseekbar:rangeseekbar-library:0.3.0'

    implementation 'com.intuit.sdp:sdp-android:1.0.6'
}


  


  My code seems to be running properly and executing the ffmpeg command on the desired video between these jumps to the decompiler, but the video does not save. Here is a snippet from the java class that might be causing this :

  


      @Override
    public boolean onOptionsItemSelected(MenuItem menuItem){
        if(menuItem.getItemId()==R.id.trim){
            final AlertDialog.Builder alertDialog = new AlertDialog.Builder(com.example.capstoneapplication.VideoTrimmer.this);

            LinearLayout linLay = new LinearLayout(com.example.capstoneapplication.VideoTrimmer.this);
            linLay.setOrientation(LinearLayout.VERTICAL);
            LinearLayout.LayoutParams layPar = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT);
            layPar.setMargins(50, 0, 50, 100 );
            final EditText input = new EditText(com.example.capstoneapplication.VideoTrimmer.this);
            input.setLayoutParams(layPar);
            input.setGravity(Gravity.TOP|Gravity.START);
            input.setInputType(InputType.TYPE_TEXT_FLAG_CAP_SENTENCES);
            linLay.addView(input,layPar);

            alertDialog.setMessage("Enter Video Name");
            alertDialog.setTitle("Change Video Name");
            alertDialog.setView(linLay);
            alertDialog.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    dialog.dismiss();
                }
            });
            alertDialog.setPositiveButton("Submit", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    fileName = input.getText().toString();

                    try {
                        snipVideo(videoDurBar.getAbsoluteMinValue().intValue(), videoDurBar.getSelectedMaxValue().intValue(), fileName);
                    } catch ( FFmpegNotSupportedException e) {
                        e.printStackTrace();
                    }


                }
            });
            alertDialog.show();
        }
        return super.onOptionsItemSelected(menuItem);
    }

    private void snipVideo( int min, int max, String fileName) throws FFmpegNotSupportedException {

        File destFolder = new File("storage/emulated/0" + "/EditingApeSnippedVideos");
        if(!destFolder.exists()){
            destFolder.mkdir();
        }
        String fileExtension = ".mp4";
        destination = new File(destFolder, fileName + fileExtension);
        inputVideoPath = getPathFromUri(getApplicationContext(),uri);


        command = new String[]{"-ss", "" + min/1000 , "-y", "-i", inputVideoPath, "-t", ""+ (max-min)/1000 ,"-vcodec", "mpeg4", "-b:v","2097152","-b:a", "48000", "-ac","2","-ar","22050", destination.getAbsolutePath()};

        //testing command
        //command = new String []{"-y", "-i", inputVideoPath, "-ss", "00:00:02" , "-to", "00:00:03", "-c", "copy", destination.getAbsolutePath()};
        final FFmpeg ff = FFmpeg.getInstance(this);
        ff.loadBinary(new FFmpegLoadBinaryResponseHandler() {

            @Override
            public void onStart() {

                Log.i("VideoTrimmer","onStart");
            }

            @Override
            public void onFinish() {
                Log.i("VideoTrimmer","onFinish");
            }

            @Override
            public void onFailure() {
                Log.i("VideoTrimmer","onFailure");
            }

            @Override
            public void onSuccess() {
                Log.i("VideoTrimmer","Success");
                try {
                    ff.execute(command, new ExecuteBinaryResponseHandler());
                } catch (FFmpegCommandAlreadyRunningException e) {
                    Log.i("VideoTrimmer","FFmpegAlreadyRunning Exception");

                }
            }
        });
    }


  


  Has anyone found a solution to this debugger issue ?