Recherche avancée

Sur d’autres sites (7780)

• How to icecast a merged incoming icecast audio stream with local webcam ?

  20 juillet 2020, par pimpmypixel

  I have my webcam attached via usb to a server running ubuntu with icecast, webcamoid and ffmpeg. Then I have a laptop broadcasting the audio to the server.
I have tried with a mix of icecast (also via liquidsoap) and ffmpeg bash scripts, but I am not able to access a merged video.
I'm sure there must be some common/best practice to even a simple setup like this, but it's confusing to me which of them does what.
Is icecast able to do do it by itself or with relaying ? or is ffmpeg supposed to merge everything ? or is it a combination of the two ?

  


• How to capture audio in an xvfb system using ffmpeg

  12 juin 2016, par somya bhargava

  Want to capture the audio using ffmpeg
  Went to this link

  The error coming on the first one is
  ffmpeg exited with code 1 : hw:0 : Input/output error

  And the pulse one is running on my laptop but not on the server i think some missing drivers

  ffmpeg exited with code 1 : default : No such process

• Opencv VideoCapture not streaming RTSP link and returns "no frame !"

  6 septembre 2023, par Asadullah Naeem

  I am trying to stream my HikVision IP camera throough python. I am using cv2.VideoCapture("rtsp_link") which works fine on my Laptop but when I try to run the same python script with same Opencv and FFmpeg version it gives me following error :

  


  Error :

  


  [h264 @ 000002124c7f9a40] missing picture in access unit with size 47
[h264 @ 000002124c7f9a40] no frame!


  


  I have so far tried to run this script on 5 computer devices but it gives the same error. I am using the following python script and my Opencv version is 4.6.0.66 and ffmpeg version 2022-06-20-git-56419428a8-essentials_build-www.gyan.dev :

  


  Python Script :

  


  import cv2

# RTSP stream URL
rtsp_url = "rtsp://username:password@ip_address:port/Streaming/Channels/501"

# Open the RTSP stream
cap = cv2.VideoCapture(rtsp_url)

# Check if the stream was successfully opened
if not cap.isOpened():
    print("Failed to open RTSP stream.")
    exit()

# Read and display frames from the stream
while True:
    # Read a frame from the stream
    ret, frame = cap.read()

    # Check if the frame was successfully read
    if not ret:
        print("Failed to read frame from RTSP stream.")
        break

    # Display the frame
    cv2.imshow("RTSP Stream", frame)

    # Exit if 'q' is pressed
    if cv2.waitKey(1) & 0xFF == ord('q'):
        break

# Release the resources
cap.release()
cv2.destroyAllWindows()



  


  Update :

  


  Code runs on a laptop on both wifi and mobile internet (4G) but on other devices rtsp link is accessible only with mobile internet (4G).