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• Content retreived from glacier vault , how to feed into ffmpeg or ffprobe ?

  22 septembre 2021, par maddy23

  Wrote a python program to retreive the whole archive file from the glacier vault , from get_job_output.py

  


  Further from the respobe body from get_job_output.py , loaded into a varible.

  


  responese = vaultName='vualt_name',
    jobId='UBSW2BjtzM8i868SD97sVS972-Ifz2tVOOW2BjtzM8ifceipTvN-2RgDJG5JjWgIw1BZ9Bv_v9NJTg7OadEupjTFO',
)

content = respone['body'] --> which is an streamingbody 


  


  further i need to feed the streambody cotent into ffmpeg cmd

  


  ffprobe -i "content"


  


  Above cmd returns :
TypeError : can only concatenate str (not "StreamingBody") to str

  


  I dont want to use StreamingBody.read(response['body']) , which basically loads the whole file into RAM.
what are other ways to handle the streamingbody from respone and feed to other programs.
or is there a way to generate a http://link for the

  


• Detect face in video file

  24 juin 2017, par Yaswanth Pushpak

  My code is to detect face in a video, but the video is not being loaded even I have given the right path. Also, I installed ffmpeg but there are no .dll files in it.

  Can anyone help ?

  import cv2
  
  
  
  import numpy as np
  
  
  
  faceDetect=cv2.CascadeClassifier('C:\\OPENCV\\opencv\\sources\\data\\haarcascades\\haarcascade_frontalface_default.xml')
  
  
  
  ret,cam=cv2.VideoCapture('D:\\New folder (5)\\New folder (3)\\Ae Dil Hai Mushkil.mp4')
  
  
  
  img=cam.read()
  
  
  
  while(cam.isOpened()):
  
  
  
  ret,img=cam.read();
  
  
  
  if not ret: break
  
  
  
  gray=cv2.cvtColor(img,cv2.COLOR_BGR2GRAY)
  
  
  
   faces=faceDetect.detectMultiScale(gray,1.3,5);
  
  
  
      `enter code here`for (x,y,w,h) in faces:
  
          cv2.rectangle(img,(x,y),(x+w,y+h),(0,255,0),2)
  
      cv2.imshow("Face",img);
  
      if(cv2.waitKey(1) & 0xFF==ord('q')):
  
          break;
  
  
  
  cam.release()
  
  cv2.destroyAllWindows()

  Error :

  Traceback (most recent call last):
  
    File "D:\New folder (5)\New folder (3)\facedet.py", line 5, in <module>
  
      ret,cam=cv2.VideoCapture('D:\\New folder (5)\\New folder (3)\\Ae Dil Hai Mushkil.mp4')
  
  TypeError: 'cv2.VideoCapture' object is not iterable
  
  </module>

• convert mkv to mp4 before uploading it to aws

  21 mai 2021, par Sambhav jain

  there is a videofile which is in mkv format and getting upload to aws but i want to convert it to mp4 first and then upload. is there a way to convert mkv to mp4

  


  handleUpload() {
    for (let i = 0; i < this.files.length; i++) {
      this.awsUploadService
        .getSignedUrlS3(this.files[i]["name"], this.files[i]["type"])
        .subscribe(
          ({ url, keyFile }) => {
            this.awsUploadService
              .uploadfileAWSS3(url, this.files[i]["type"], this.files[i])
              .subscribe(
                (data) => {
                  if (data["type"] === 1) {
                    this.files[i]["progress"] =
                      (data["loaded"] / data["total"]) * 100;
                  }
                  if (data["type"] === 4) {
                    this.files[i]["isUploadCompleted"] = true;
                    this.files[i][
                      "uploadLocation"
                    ] = `https://${environment.S3_BUCKET_NAME}.s3.${environment.S3_Region}.amazonaws.com/${keyFile}`;
                  }
                },
                (error) => {
                  this.files[i].isUploadCompleted = false;
                  throw error;
                }
              );
          },
          (error) => {
            this.files[i].isUploadCompleted = false;
            throw error;
          }
        );
    }
  }