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• local.ERROR : ffmpeg failed to execute command

  20 août 2024, par AMNA IQBAL

  I am trying to draw points on a video.
  

  


  The Video is 12 seconds long and for one second there are 17 data points which needs to be plotted on the video of one frame (1 second).
  
It works for 6 seconds but not for 12 seconds.
  

  


  Why it's not working for longer videos ? Is there any limitations of commands in ffmpeg ?

  


  public function overlayCoordinates(Request $request)
{
Log::info('Received request to overlay coordinates on video.');

    set_time_limit(600); // 600 seconds = 10 minutes
    try {

        $request->validate([
            'video' => 'required|file|mimes:mp4,avi,mkv,webm|max:102400', // Video max size 100MB
            'coordinates' => 'required|file|mimes:txt|max:5120', // Coordinates text file max size 5MB
        ]);

        $videoFile = $request->file('video');
        $coordinatesFile = $request->file('coordinates');

        $videoFilePath = $videoFile->getRealPath();
        $videoFileName = $videoFile->getClientOriginalName();

        // Move the video file to the desired location if needed
        $storedVideoPath = $videoFile->storeAs('public/videos', $videoFileName);

        // Open the video file using Laravel FFmpeg
        $media = FFMpeg::fromDisk('public')->open('videos/' . $videoFileName);
        $duration = $media->getDurationInSeconds();

        Log::info('Duration: ' . $duration);

        $coordinatesJson = file_get_contents($coordinatesFile->getPathname());
        $coordinatesArray = json_decode($coordinatesJson, true);

        $frameRate = 30; // Assuming a frame rate of 30 fps
        $visibilityDuration = 0.5; // Set duration to 0.5 second

        for ($currentTime = 0; $currentTime < 7; $currentTime++) {
            $filterString = ""; // Reset filter string for each frame
            $frameIndex = intval($currentTime * $frameRate); // Convert current time to an index

            if (isset($coordinatesArray['graphics'][$frameIndex])) {
                // Loop through the first 5 keypoints (or fewer if not available)
                $keypoints = $coordinatesArray['graphics'][$frameIndex]['kpts'];
                for ($i = 0; $i < min(12, count($keypoints)); $i++) {
                    $keypoint = $keypoints[$i];

                    $x = $keypoint['p'][0] * 1920; // Scale x coordinate to video width
                    $y = $keypoint['p'][1] * 1080; // Scale y coordinate to video height

                    $startTime = $frameIndex / $frameRate; // Calculate start time
                    $endTime = $startTime + $visibilityDuration; // Set end time for 0.5 second duration

                    // Add drawbox filter for the current keypoint
                    $filterString .= "drawbox=x={$x}:y={$y}:w=10:h=10:color=red@0.5:t=fill:enable='between(t,{$startTime},{$endTime})',";
                }
                   Log::info("Processing frame index: {$frameIndex}, Drawing first 5 keypoints.");
        }

            $filterString = rtrim($filterString, ',');
            
            // Apply the filter for the current frame
            if (!empty($filterString)) {
                $media->addFilter(function ($filters) use ($filterString) {
                    $filters->custom($filterString);
                });
            }
        }

        $filename = uniqid() . '_overlayed.mp4';
        $destinationPath = 'videos/' . $filename;

        $format = new \FFMpeg\Format\Video\X264('aac');
        $format->setKiloBitrate(5000) // Increase bitrate for better quality
               ->setAdditionalParameters(['-profile:v', 'high', '-preset', 'veryslow', '-crf', '18']) // High profile, very slow preset, and CRF of 18 for better quality
               ->setAudioCodec('aac')
               ->setAudioKiloBitrate(192); // Higher audio bitrate
        

        // Export the video in one pass to a specific disk and directory
        $media->export()
              ->toDisk('public')
              ->inFormat($format)
              ->save($destinationPath);

        return response()->json([
            'message' => 'Video processed successfully with overlays.',
            'path' => Storage::url($destinationPath)
        ]);
    } catch (\Exception $e) {
        Log::error('Overlay process failed: ' . $e->getMessage());
        return response()->json(['error' => 'Overlay process failed. Please check logs for details.'], 500);
    }
}


  


• ffmpeg commands execution failed when run from Java. Executed successfully when the command is run in the terminal

  28 septembre 2022, par Kaung Myat Khaing

  I'm working on a java project which works with audio file manipulation(I'm newbie to Java). I want to get the start and end time of silence in the audio with ffmpeg "silencedetect" audio filter and write the results to a text file.
I run the filter command within the following function, but it always result in failure(prints "Silence Detection failed"). Then, I tried running the command in the terminal and it was successful(prints "Silence Detection successful"). I don't know what's wrong with my java code. I have other functions which execute other ffmpeg commands with the same flow as provided, but they works fine.
Here's the function.

  


  public static void getSilence(String filePath) throws InterruptedException, IOException {
        //                detect silence
        System.out.println("Silence Detection cmd: ffmpeg -i " + filePath
                + " -af silencedetect=d=1:noise=-60dB -f null - |& awk '/silencedetect/ {print $4,$5}' > "
                + SOURCE_PATH + "/silence_detections/silenceInfo.txt");
        Process silenceDetect = Runtime.getRuntime().exec("ffmpeg -i " + filePath
                + " -af silencedetect=d=1:noise=-60dB -f null - |& awk '/silencedetect/ {print $4,$5}' > "
                + SOURCE_PATH + "/silence_detections/silenceInfo.txt");

        if (silenceDetect.waitFor() == 0) {
            System.out.println("Silence Detection successful");
        } else System.out.println("Silence Detection failed");
    }


  


• avformat/bethsoftvid : print error in case the side date failed to be allocated

  27 octobre 2014, par Michael Niedermayer

  avformat/bethsoftvid : print error in case the side date failed to be allocated
  Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
  

  • [DH] libavformat/bethsoftvid.c