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• postproc : fix unaligned access

  18 juin 2015, par Andreas Cadhalpun

  postproc : fix unaligned access
  QP_store is only 8-bit-aligned, so accessing it as uint32_t causes
  
  SIGBUS crashes on sparc.
  
  The AV_RN32/AV_WN32 macros only do unaligned access in the
  
  HAVE_FAST_UNALIGNED case.
  Reviewed-by : Michael Niedermayer <michaelni@gmx.at>
  
  Signed-off-by : Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
  

  • [DH] libpostproc/postprocess.c

• Protect files from direct access by url on iis server and MVC APP with identity

  19 octobre 2022, par Ahmed Ramadan

  i have MVC app with identity authentication
this site business is playing video which edited by ffmpeg .

  


    <video class="video-js vjs-default-skin" width="640" height="360" controls="controls">&#xA;    <source src="video\index.m3u8" type="application/x-mpegURL">&#xA;</source></video>&#xA;

  


  i want to prevent direct access from browser to this link , unless user has session
https://localhost/vide/index.m3u8

  


  i tired this code for config file

  


  &#xA;        <authorization>&#xA;            <deny users="?"></deny>&#xA;        </authorization>&#xA;    &#xA;

  


  but i still be able to access the file and not able to aceess folder

  


  ex :-

  


  https://localhost/video/index.m3u8 


  


  accessible

  


      https://localhost/video


  


  Not accessible !

  


  i tried this link , but still not get it
how to deny user to access sub folders and file ?

  


• why can't access rtsp camera in python ?

  6 septembre 2024, par Come Oh

  I'm trying to access an RTSP camera in Python and get frame information from it.

  


  One of the camera options is RTSP authentication, and when I include it, VLC asks for login information. ('[rtsp @ ] method DESCRIBE failed : 401 Unauthorized')

  


  If I turn it off, I can access it regardless of ID or PW, but if I turn it on, I can't access it from Python.

  


  I verified that it works by putting the same RTSP address, ID, and PW in VLC, and it doesn't contain any symbols like '@' which is a common problem.

  


  I used several libraries, including Opencv, ffmpeg, and others, and got the same
'[rtsp @ ] method DESCRIBE failed : 401 Unauthorized' and only this error appears

  


  What could be the cause,,, please help...

  


  import cv2

url = "rtsp://username:password@camera_ip:554/stream_path"

cap = cv2.VideoCapture(url)

if not cap.isOpened():
    print("Failed to open RTSP stream.")
    exit()

while True:
    ret, frame = cap.read()
    if not ret:
        print("Failed to read frame.")
        break
    cv2.imshow('RTSP Stream', frame)
    if cv2.waitKey(1) & 0xFF == ord('q'):
        break

cap.release()
cv2.destroyAllWindows()


  


  I tried running the above code and debugging it using the ffmpeg library.