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• how to get exact position in video as image view ?

  16 février 2024, par Dhruvisha Joshi

  I want to give photo editing feature in my app. so I am allowing user to add text to photo and after that I want to convert it to video using Ffmpeg command.

  


  here is my command that adds text and convert photo to video.
ffmpeg -loop 1 -i /var/mobile/Containers/Data/Application/88F535C3-A300-456C-97BB-1A9B83EAEE7B/Documents/Compress_Picture/input.jpg -filter_complex "[0]scale=1080:trunc(ow/a/2)*2[video0];[video0]drawtext=text='Dyjfyjyrjyfjyfkyfk':fontfile=/private/var/containers/Bundle/Application/DE5C8DAA-4D66-4345-834A-89F8AC19DF9B/Clear Status.app/avenyt.ttf:fontsize=66.55112651646448:fontcolor=#FFFFFF:x=349.92:y=930.051993067591" -c:v libx264 -t 5 -pix_fmt yuv420p -y /var/mobile/Containers/Data/Application/88F535C3-A300-456C-97BB-1A9B83EAEE7B/Documents/Compress_Picture/output0.mp4

  


  here is my swift code to generate command.

  


  var filterComplex = ""
var inputs = ""
var audioIndex = ""

if currentPhotoTextDataArray.contains(where: { $0.isLocation }) {
 // At least one element has isLocation set to true
 // Do something here
 print("There's at least one element with isLocation == true")
                            inputs = "-i \(inputPath) -i \(self.locImagePath)"
                            audioIndex = "2"
                            
                        } else {
                            // No elements have isLocation == true
                            print("No elements have isLocation set to true")
                            inputs = "-i \(inputPath)"
                            audioIndex = "1"
                        }
                        
                        for (index, textData) in currentPhotoTextDataArray.enumerated() {
                            print("x: \(textData.xPosition), y: \(textData.yPosition)")
                            let x = (textData.xPosition) * 1080 / self.photoViewWidth
                            let y = (textData.yPosition) * 1920 / self.photoViewHeight
                            
                            let fontSizeForWidth = (textData.fontSize * 1080) / self.photoViewWidth
                            let fontSizeForHeight = (textData.fontSize * 1920) / self.photoViewHeight
                            print("fontSizeForWidth: \(fontSizeForWidth)")
                            print("fontSizeForHeight: \(fontSizeForHeight)")
                            
                            let fontPath = textData.font.fontPath
                            let fontColor = textData.fontColor.toHexOrASS(format: "hex")
                            let backColor = textData.backColor?.toHexOrASS(format: "hex")
                            print("fontPath: \(fontPath)")
                            print("fontColor: \(fontColor)")
                            
                            let breakedText = self.addBreaks(in: textData.text, with: UIFont(name: textData.font.fontName, size: fontSizeForHeight) ?? UIFont(), forWidth: 1080, padding: Int(x))
                            
                            if textData.isLocation {
                                print("Location is there.")
                                
                                let textFont = UIFont(name: textData.font.fontName, size: fontSizeForHeight)
                                let attributes: [NSAttributedString.Key: Any] = [NSAttributedString.Key.font: textFont ?? UIFont()]
                                let size = (textData.text as NSString).size(withAttributes: attributes)
                                let textWidth = Int(size.width) + 130
                                
                                var endTimeLoc = 0.0
                                if let audioData = self.audioDataArray.first(where: { $0.photoIndex == mainIndex }) {
                                    let duration = audioData.audioEndTime - audioData.audioStartTime
                                    endTimeLoc = duration
                                } else {
                                    endTimeLoc = 5
                                }
                                
                                let layerFilter = "color=color=black@.38:size=\(textWidth)x130[layer0];[video\(index)][layer0]overlay=enable='between(t,0,\(endTimeLoc))':x=\(x):y=(\(y)-(overlay_h/2))[layer1];"
                                filterComplex += layerFilter
                                let imageFilter = "[1:v]scale=80:80[image];[layer1][image]overlay=enable='between(t,0,\(endTimeLoc))':x=\(x)+10:y=(\(y)-(overlay_h/2))[v\(index)];"
                                filterComplex += imageFilter
                                
                                if index == currentPhotoTextDataArray.count - 1 {
                                    let textFilter = "[v\(index)]drawtext=text='\(breakedText)':fontfile=\(fontPath):fontsize=\(fontSizeForHeight):fontcolor=\(fontColor):x=(\(x)+100):y=(\(y)-(text_h/2))"
                                    filterComplex += textFilter
                                } else {
                                    let textFilter = "[v\(index)]drawtext=text='\(breakedText)':fontfile=\(fontPath):fontsize=\(fontSizeForHeight):fontcolor=\(fontColor):x=(\(x)+100):y=(\(y)-(text_h/2))[video\(index + 1)];"
                                    filterComplex += textFilter
                                }
                                
                            } else {
                                
                                let textBack = textData.backColor != nil ? ":box=1:boxcolor=\(backColor ?? "")@0.8:boxborderw=25" : ""
                                
                                if index == currentPhotoTextDataArray.count - 1 {
                                    let textFilter = "[video\(index)]drawtext=text='\(breakedText)':fontfile=\(fontPath):fontsize=\(fontSizeForHeight):fontcolor=\(fontColor):x=\(x):y=\(y)\(textBack)"
                                    filterComplex += textFilter
                                } else {
                                    let textFilter = "[video\(index)]drawtext=text='\(breakedText)':fontfile=\(fontPath):fontsize=\(fontSizeForHeight):fontcolor=\(fontColor):x=\(x):y=\(y)\(textBack)[video\(index + 1)];"
                                    filterComplex += textFilter
                                }
                            }
                            
                        }
                        
                        if let audioData = self.audioDataArray.first(where: { $0.photoIndex == mainIndex }) {
                            
                            let audioSTime = self.getSTimeAudio(index: mainIndex, secondsPhoto: Int(audioData.audioStartTime))
                            let audioETime = self.getETimeAudio(index: mainIndex, secondsPhoto: Int(audioData.audioEndTime))
                            let duration = audioData.audioEndTime - audioData.audioStartTime
                            
                            command = "-loop 1 \(inputs) -ss \(audioSTime) -to \(audioETime) -i \"\(audioData.audioURL.path)\" -filter_complex \"[0]scale=1080:trunc(ow/a/2)*2[video0];\(filterComplex)[final_video]\" -map \"[final_video]\":v -map \(audioIndex):a -c:v libx264 -t \(duration) -pix_fmt yuv420p -y \(outputURL.path)"
                            
                        } else {
                            command = "-loop 1 \(inputs) -filter_complex \"[0]scale=1080:trunc(ow/a/2)*2[video0];\(filterComplex)\" -c:v libx264 -t 5 -pix_fmt yuv420p -y \(outputURL.path)"
                        }
                    }


  


  I am not getting exact position of text in generated video as added by user. if anyone knows please help me with this.

  


• Ffmpeg video of images in loop ?

  4 février 2024, par Daniel

  I am trying to make a video from 2 images repeating in loop :
image1.png to be shown 1.2 seconds.
Then image2.png to be shown for 3 seconds.
Video should be long 180 seconds.
png images are different resolution, image1 is smaller, image2 is 1080*1920, video should use resolution of a image2, and image1 should be shown in its original size, not stretched.

  


  ffmpeg -loop 1 -t 1.2 -i image1.png -loop 1 -t 3 -i image2.png -filter_complex "[0:v]scale=1920:1080:force_original_aspect_ratio=decrease[img1];[1:v][img1]overlay=eof_action=repeat[video]" -map "[video]" -t 180 -r 30 -y output.mp4

  


  Output is 3 seconds long and show only image1 ?

  


• Use FFmpeg to crop a video to square format in Android

  22 août 2016, par Cédric Portmann

  I am currently working on an app that is supposed to crop a 16:9 video into a 1:1 video. However I dont get the code working. If possible the software should convert the inputed video as fast as possible. The resolution can vary between 480x480 and 720x720.

  If I could choose the postion of the crop frame it would be perfect.

  The error I get :

  E/FFmpeg: Exception while trying to run: [Ljava.lang.String;@f0c91b8
  
  java.io.IOException: Error running exec(). Command: [/data/user/0/com.android.grafika/files/ffmpeg, -i /storage/emulated/0/Alphacrypt1.mp4 -vf crop=640:256:0:400 -threads 5 -preset ultrafast -strict -2 /storage/emulated/0/YourCroppedMovie.mp4] Working Directory: null Environment: null
  
  at java.lang.ProcessManager.exec(ProcessManager.java:215)
  
  at java.lang.Runtime.exec(Runtime.java:174)
  
  at java.lang.Runtime.exec(Runtime.java:129)
  
  at com.github.hiteshsondhi88.libffmpeg.ShellCommand.run(ShellCommand.java:10)
  
  at com.github.hiteshsondhi88.libffmpeg.FFmpegExecuteAsyncTask.doInBackground(FFmpegExecuteAsyncTask.java:38)
  
  at com.github.hiteshsondhi88.libffmpeg.FFmpegExecuteAsyncTask.doInBackground(FFmpegExecuteAsyncTask.java:10)
  
  at android.os.AsyncTask$2.call(AsyncTask.java:295)
  
  at java.util.concurrent.FutureTask.run(FutureTask.java:237)
  
  at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234)
  
  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
  
  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
  
  at java.lang.Thread.run(Thread.java:818)
  
  Caused by: java.io.IOException: No such file or directory
  
  at java.lang.ProcessManager.exec(Native Method)
  
  at java.lang.ProcessManager.exec(ProcessManager.java:213)
  
  at java.lang.Runtime.exec(Runtime.java:174) 
  
  at java.lang.Runtime.exec(Runtime.java:129) 
  
  at com.github.hiteshsondhi88.libffmpeg.ShellCommand.run(ShellCommand.java:10) 
  
  at com.github.hiteshsondhi88.libffmpeg.FFmpegExecuteAsyncTask.doInBackground(FFmpegExecuteAsyncTask.java:38) 
  
  at com.github.hiteshsondhi88.libffmpeg.FFmpegExecuteAsyncTask.doInBackground(FFmpegExecuteAsyncTask.java:10) 
  
  at android.os.AsyncTask$2.call(AsyncTask.java:295) 
  
  at java.util.concurrent.FutureTask.run(FutureTask.java:237) 
  
  at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234) 
  
  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113) 
  
  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588) 
  
  at java.lang.Thread.run(Thread.java:818) 

  The code I am using :

  final String[] cmd = new String[]{"-i /storage/emulated/0/Alphacrypt1.mp4 -vf crop=640:256:0:400 -threads 5 -preset ultrafast -strict -2 /storage/emulated/0/YourCroppedMovie.mp4"};
  
  
  
      try {
  
          final FFmpeg ffmpeg = FFmpeg.getInstance(this);
  
          ffmpeg.execute(cmd, new FFmpegExecuteResponseHandler() {
  
              @Override
  
              public void onSuccess(String message) {
  
                  Toast.makeText(getApplicationContext(), "Successfully converted!",
  
                          Toast.LENGTH_LONG).show();
  
              }
  
  
  
              @Override
  
              public void onProgress(String message) {
  
  
  
              }
  
  
  
              @Override
  
              public void onFailure(String message) {
  
                  Toast.makeText(getApplicationContext(), "Fail!"+ message,
  
                          Toast.LENGTH_LONG).show();
  
              }
  
  
  
              @Override
  
              public void onStart() {
  
                  Toast.makeText(getApplicationContext(), "Started!",
  
                          Toast.LENGTH_LONG).show();
  
              }
  
  
  
              @Override
  
              public void onFinish() {
  
                  Toast.makeText(getApplicationContext(), "Stopped!",
  
                          Toast.LENGTH_LONG).show();
  
              }
  
          });
  
      } catch (FFmpegCommandAlreadyRunningException e) {
  
  
  
      }

  Thank you for your help.

  SOLUTION :

  1. I did not add the "Load Binary" part, which is necessary to run the
     FFmpeg library (http://writingminds.github.io/ffmpeg-android-java/).
  2. The command needs to be splitted using .split(" "); as already told by printfmyname
  3. For now I use -vf crop=1080:1080:0:0 to crop the video to a square. (Without messing up the ratio)