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• Php and mysql Video upload Using ffmpeg

  13 juillet 2014, par EcoWebtr

  Hello friends i am trying to make a video upload script but I just want to ask a question.How will the integration of ffmpeg ?I asked my server provider. They said FFmpeg is in working condition.
  I want to give a just an example in my code.

  <?php
  
  
  
  
  
  if(isset($_POST['submit']))
  
  { 
  
  $tmp = $_FILES['file']['tmp_name'];
  
  $name = $_FILES['file']['name'];
  
  $ext = pathinfo($name, PATHINFO_EXTENSION); 
  
  $name = alphaID(microtime(true) * 10000);
  
  
  
  move_uploaded_file($temp,"uploaded/".$name.'.'.$ext);
  
  
  
      mysql_query("INSERT INTO `video` VALUE ('','$name','$ext')");
  
  }
  
  
  
  ?>

  My video was uploaded successfully. Where and how can i add Ffmpeg code ?

• How to use the video datastreaming I get from nginx server ?

  31 janvier, par Jennie Tsai

  I have three nodes in my network :
dataServer --- node1 --- node2.
My video data "friends.mp4" is saved on dataServer. I started both dataServer and node2 as rtmp-nginx servers. I use ffmpeg on node1 to pull datastreaming on dataServerand and push the converted datastreaming to the application "live" on node2.
Here's my configuration of nginx.conf for node2.

  


  worker_processes  1;
events {
    worker_connections  1024;
}

rtmp {
    server {

    listen 1935;

    chunk_size 4000;

application play {
        play /usr/local/nginx/html/play;
    }

application hls {
        live on;
        hls on;
        hls_path /usr/local/nginx/html/hls;
    hls_fragment 1s;
    hls_playlist_length 4s;
    }

application live  
    {
        live on; 
    allow play all;
    }
}
}


  


  I want to run this python code to recognize the faces in friends.mp4 :

  


  import cv2

vid_capture=cv2.VideoCapture("rtmp://127.0.0.1:1935/live")
face_detect = cv2.CascadeClassifier('./haarcascade_frontalface_default.xml')
if (vid_capture.isOpened() == False):
    print("Error opening the video file")
else:
    fps = vid_capture.get(5)
    print("Frames per second : ", fps,'FPS')
    frame_count = vid_capture.get(7)
    print('Frame count : ', frame_count)

while(vid_capture.isOpened()):
    ret, frame = vid_capture.read()
    if ret == True:
        gray = cv2.cvtColor(frame, code=cv2.COLOR_BGR2GRAY)
        face_zone = face_detect.detectMultiScale(gray, scaleFactor=1.1, minNeighbors=3)
        for x, y, w, h in face_zone:
            cv2.rectangle(frame, pt1 = (x, y), pt2 = (x+w, y+h), color = [0,0,255], thickness=2)
            cv2.circle(frame, center = (x + w//2, y + h//2), radius = w//2, color = [0,255,0], thickness = 2)
        cv2.imshow('Frame', frame)
        key = cv2.waitKey(50)
        if key == ord('q'):
            break
    else:
        break
vid_capture.release()
cv2.destoryAllWindows()


  


  But I can't do it because cv2.VideoCapture can not get the data streaming from rtmp://127.0.0.1:1935/live. Maybe it is because this path is not a file. How can I get the video streaming received by the nginx server and put it to my openCV model ? Is there a way that I just access the dataStreaming received by the nginx server and make it a python object that openCV can use ?

  


• Files corrupted using ffmpeg, the process is not completed

  5 mai 2022, par medinaracing

  I transcoding .mxf files to .mp4, my process works good for files when the duration is less 35 minutes, but when the video file has a longer duration the transcoding is not completed. This is my command according to my preset :

  


  ffmpeg -i input_file.mxf -y -map 0:0 -map 0:2 -c:v libx264 -threads 12 -bf 32 -flags 4 -preset fast -b:v 7000k -minrate 7000k -maxrate 7000k -bufsize 7000k -s 1280x720 -aspect 1.7777 -pass 8 -b:a 128k -q:v 16 -strict -2 -acodec:0 aac -metadata:s:a:0 language=spa /media/nas/output_file.mp4


  


  I using the ffmpeg version 4.2.4 in Ubuntu Server 20.04, any suggestion ? Thank a lot for your help friends.