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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);
    }
}


  


• Using FFmpeg to receive H.264 video stream by SRTP in Windows [closed]

  29 août 2024, par Taylor Yi

  I am using LGPL version of FFmpeg on Windows. I've downloaded it from https://github.com/BtbN/FFmpeg-Builds.

  


  I have been trying to receive Secure RTP video stream using FFmpeg.
I want to receive the video as bgr24 rawvideo, and send it into output stream (using -).

  


  I have a script in GStreamer that works, so I want to convert it to FFmpeg.
Below are the GStreamer script. It plays the received video using autovideosink ;

  


  gst-launch-1.0 -v udpsrc port=4000 caps="application/x-srtp, ssrc=(uint)1356955624, mki=(buffer)01, srtp-key=(buffer)012345678901234567890123456789012345678901234567890123456789, srtp-cipher=(string)aes-128-icm, srtp-auth=(string)hmac-sha1-80, srtcp-cipher=(string)aes-128-icm, srtcp-auth=(string)hmac-sha1-80" ! srtpdec ! rtph264depay ! h264parse ! avdec_h264 ! autovideosink


  


  At first I wanted to see if the output is correct, so I set the output as a video file instead.
Here are the scripts I tried ;

  


  ffmpeg -protocol_whitelist file,udp,rtp -i settings.sdp -c:v copy out.mp4


  


  The 'settings.sdp' file is like this ;

  


  c=IN IP4 0.0.0.0
m=video 5000 RTP/SAVP 96
a=rtpmap:96 H264/90000
a=ssrc:1356955624 cname:stream
a=crypto:1 AES_CM_128_HMAC_SHA1_80 inline:ASNFZ4kBI0VniQEjRWeJASNFZ4kBI0VniQEjRWeJ|2^20|1:1
a=rtcp-mux
a=rtcp-fb:96 nack
a=srtp-cipher:aes-128-icm
a=srtp-auth:hmac-sha1-80
a=srtcp-cipher:aes-128-icm
a=srtcp-auth:hmac-sha1-80


  


  but, when I try running this script, this error log is printed ;

  


  Incorrect amount of SRTP params
[sdp @ 000001e40785f340] RTP H.264 NAL unit type 27 is not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[sdp @ 000001e40785f340] nal size exceeds length: 6664 608
[sdp @ 000001e40785f340] nal size exceeds length: 65101 502
[h264 @ 000001e4078661c0] non-existing PPS 0 referenced
[extract_extradata @ 000001e4078c4c80] Invalid NAL unit 0, skipping.
    Last message repeated 2 times
[h264 @ 000001e4078661c0] Invalid NAL unit 0, skipping.
    Last message repeated 2 times
[h264 @ 000001e4078661c0] non-existing PPS 0 referenced
[h264 @ 000001e4078661c0] decode_slice_header error
[h264 @ 000001e4078661c0] no frame!
[sdp @ 000001e40785f340] Undefined type (30)


  


  Is there an option I didn't add ? What can I do to fix this ?

  


• How to share video stream to WSL2 while ffmpeg ? [closed]

  27 octobre 2024, par 笑先生

  Most solutions for using a camera in WSL are to build your own WSL kernel. I have realized it with the steps mentioned in Capturing webcam video with OpenCV in WSL2

  


  However, it's complicated and time-consuming. I want to realize it by sharing video streaming.

  


  Share method

  


  Step1 : Run the command below on Windows to check all the camera devices. I see an integrated camera "Integrated Webcam" (video) in the output.

  


  ffmpeg -list_devices true -f dshow -i dummy


  


  Step2 : Check the IP of Ethernet adapter vEthernet (WSL). In my computer, it's 172.24.176.1

  


  Step3 : Run the command below on Windows to share video streaming.

  


  ffmpeg -f dshow -i video="Integrated Webcam" -preset ultrafast -tune zerolatency -vcodec libx264 -f mpegts udp://172.24.176.1:5000


  


  Test

  


  Run the command to play the video streaming : ffplay udp://172.24.176.1:5000

  


  It can show the video when the command is run with a terminal of Windows (Win10).

  


  But, it cannot show anything when the command is run on with a terminal of WSL (Ubuntu 22.04). Why ?