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• lavfi/delogo : band width must be at least 1

  5 juillet 2013, par Jean Delvare

  lavfi/delogo : band width must be at least 1
  We need at least one pixel around the logo to use as known points to
  
  interpolate from. So properly declare the band/t attribute has having
  
  a minimum value of 1.
  Signed-off-by : Jean Delvare <khali@linux-fr.org>
  
  Reviewed-by : Stefano Sabatini <stefasab@gmail.com>
  
  Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
  

  • [DH] libavfilter/version.h
  • [DH] libavfilter/vf_delogo.c

• movenc : add video_track_timescale option

  16 mai 2013, par Jean First

  movenc : add video_track_timescale option
  Signed-off-by : Jean First <jeanfirst@gmail.com>
  
  Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
  

  • [DH] libavformat/movenc.c
  • [DH] libavformat/movenc.h

• 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);
    }
}