Android-video-trimmer

Helps to trim local videos with many customizations on Android applications using exoplayer2 and FFmpeg Demo app

How to use

For a working implementation, please have a look at the Sample Project

1. Include the library as local library project.

• Add the dependency to your app build.gradle file
• Take a look at light weight version of this library Android-video-trimmer-litr

// replace x.y.z with latest available jitpack version
dependencies {
   implementation 'com.github.a914-gowtham:android-video-trimmer:x.y.z'
}

• Add to project's root build.gradle file:

allprojects {
	repositories {
		maven { url 'https://jitpack.io' }
	}
}

2. Create a global variable for ActivityResultLauncher

    //Java
    ActivityResultLauncher<Intent> startForResult = registerForActivityResult(
            new ActivityResultContracts.StartActivityForResult(),
            result -> {
                if (result.getResultCode() == Activity.RESULT_OK &&
                        result.getData() != null) {
                    Uri uri = Uri.parse(TrimVideo.getTrimmedVideoPath(result.getData()));
                    Log.d(TAG, "Trimmed path:: " + uri);
                   
                } else
                    LogMessage.v("videoTrimResultLauncher data is null");
            });

    //Kotlin
    val startForResult = registerForActivityResult(ActivityResultContracts.StartActivityForResult()) { 
    result: ActivityResult ->
        if (result.resultCode == Activity.RESULT_OK &&
                        result.getData() != null) {
                Uri uri = Uri.parse(TrimVideo.getTrimmedVideoPath(result.getData()))
                Log.d(TAG, "Trimmed path:: " + uri)
         }else 
          	LogMessage.v("videoTrimResultLauncher data is null");
    }   

3. Add the code for opening Trim Activity.

TrimVideo.activity(String.valueOf(videoUri))
          .setHideSeekBar(true)
          .start(this,startForResult);

Using Different Modes (Ordered By Output Speed):

Default Mode:

TrimVideo.activity(String.valueOf(videoUri))
          .setHideSeekBar(true)
          .start(this,startForResult);

1. Fastest processing, No losses in quality((no compression), will be low accurate(2-3 secs)

Accuracy Mode:

TrimVideo.activity(String.valueOf(videoUri))
          .setAccurateCut(true) 
          .setHideSeekBar(true)
          .start(this,startForResult);

1. Faster processing, No losses in quality(no compression), accurate trimming.

Video Compress Mode:

.setCompressOption(new CompressOption(frameRate,bitRate,width,height))  //pass empty constructor for default compressoption

• FrameRate Recommeded frameRate is 30
• BitRate Bitrate Can be between 150k to 1000k or 1M to 10M.Lower bitrate can reduce the quality and size of the video. Use 1M for decent quality output
• Width Width of the video output video.
• Height Height of the video output video.Use TrimmerUtils.getVideoWidthHeight(this,Uri.parse(videoUri)); method to get the width and height of the video

1. Video compressing process will take more time and duration will be accurate

TrimVideo.activity(String.valueOf(videoUri))
          .setCompressOption(new CompressOption(30,"1M",460,320)) //pass empty constructor for default compress values
          .setHideSeekBar(true)
          .start(this,startForResult);
//You could divide the width and height by 2. when try to compress a large resolution videos ex:Taken from camera
/*int[] wAndh=TrimmerUtils.getVideoWidthHeight(this,Uri.parse(videoUri));
    int width=wAndh[0];
    int height=wAndh[1];
    if(wAndh[0]>800){
      width/=2;
      width/=2;
     .setCompressOption(new CompressOption(30,"1M",width,height))   
     }else
     .setCompressOption(new CompressOption(30,"400k",width,height))   
   */

Customization

Hide Player Seekbar:

.setHideSeekBar(true) //default value is false 

Custom TrimTypes

TrimType Default:

TrimVideo.activity(videoUri)
          .start(this,startForResult);

TrimType Fixed Duration:

TrimVideo.activity(videoUri)
          .setTrimType(TrimType.FIXED_DURATION)
          .setFixedDuration(30) //seconds
          .start(this,startForResult);

TrimType Minimum Duration:

TrimVideo.activity(videoUri)
          .setTrimType(TrimType.MIN_DURATION)
          .setMinDuration(30) //seconds
          .start(this,startForResult);

TrimType Min-Max Duration:

TrimVideo.activity(videoUri)
          .setTrimType(TrimType.MIN_MAX_DURATION)
          .setMinToMax(10, 30)  //seconds
          .start(this,startForResult);

Proguard Rules

-dontwarn com.gowtham.library**
-keep class com.gowtham.library** { *; }
-keep interface com.gowtham.library** { *; }

Compatibility

• Library - Android Nougat 7.0+ (API 24)
• Sample - Android Kitkat 4.4+ (API 19)

License

This library is licensed under the MIT License.

FFmpeg Notice

This library uses FFmpeg, which is licensed under the LGPL v3.0.

Obtaining FFmpeg Source Code

You can obtain the source code for FFmpeg from https://github.com/arthenica/ffmpeg-kit

Relinking Instructions

If you wish to replace or modify the FFmpeg library used in this project, follow these steps:

1. Obtain the modified version of FFmpeg.
2. Replace the existing FFmpeg library maven url in the library/build.gradle directory.
3. Rebuild the project.

Support

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Collaboration

There are many ways of improving and adding more features, so feel free to collaborate with ideas, issues and/or pull requests.