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• How to read ip camera(rtsp) frames with python smoothly and without and delay and lagging for a long reading ? [closed]

  22 juillet, par Ayub Alam

  I am working on a client project to count cement bags on a trolley. The setup is as follows : Cement bags are placed on a trolley, which is then loaded into a wagon. During this process, I need to count how many bags are loaded. For this task, I am using the YOLOv11n-seg model.

  


  To capture the video feed, I am reading an IP camera stream via an RTSP link. However, during detection and counting, the frames often lag or delay, disrupting smooth processing. Initially, I tried OpenCV for camera streaming, but it had performance issues. Then, I switched to GStreamer, but the problem persisted. Finally, I attempted FFmpeg, but it still didn’t resolve the latency issue

  


  "As of now, I've tried multiple approaches to read an IP camera's RTSP stream, but I still face delays and lagging issues. I've used GStreamer, FFmpeg packages, and OpenCV, but none of them provide smooth camera reading. On the other hand, VLC and other media players stream very smoothly. Why is this happening ?"

  


• Ffmpeg 4 audio and 1 video input to 4 video outputs performance issue

  22 février 2021, par Yusufu

  I have create 4 null sink pulse monitor and it works fine.
When I publish 4 output to rtmp audio having noise and stopping. When works with 2 outputs it works fine.
If I decrease the resolution from 1920x1080 to 1280*720 it works fine too.
Using 4 different audio inputs and 1 video input

  


  
SCREEN_WIDTH=1920
SCREEN_HEIGHT=1080
SCREEN_RESOLUTION=${SCREEN_WIDTH}x${SCREEN_HEIGHT}
COLOR_DEPTH=24
X_SERVER_NUM=2
VIDEO_BITRATE=3000
VIDEO_FRAMERATE=30
VIDEO_GOP=$((VIDEO_FRAMERATE))
AUDIO_BITRATE=160k
AUDIO_SAMPLERATE=44100
AUDIO_CHANNELS=1
#some codes here

ffmpeg -y\
  -hide_banner -loglevel error \
  -nostdin \
  -s ${SCREEN_RESOLUTION} \
  -r ${VIDEO_FRAMERATE} \
  -draw_mouse 0 \
  -f x11grab \
    -i ${DISPLAY} \
  -f pulse -i MySink1.monitor \
  -f pulse -i MySink2.monitor \
  -f pulse -i MySink3.monitor \
  -f pulse -i MySink4.monitor \
  -c:v libx264 \
    -pix_fmt yuv420p \
    -profile:v main \
    -preset veryfast \
    -minrate ${VIDEO_BITRATE} \
    -maxrate ${VIDEO_BITRATE} \
    -g ${VIDEO_GOP} \
    -map 0 -f flv -map 1  ${RTMP_URL1} \
  -c:v libx264 \
    -pix_fmt yuv420p \
    -profile:v main \
    -preset veryfast \
    -minrate ${VIDEO_BITRATE} \
    -maxrate ${VIDEO_BITRATE} \
    -g ${VIDEO_GOP} \
    -map 0 -f flv -map 2  ${RTMP_URL2} \
  -c:v libx264 \
    -pix_fmt yuv420p \
    -profile:v main \
    -preset veryfast \
    -minrate ${VIDEO_BITRATE} \
    -maxrate ${VIDEO_BITRATE} \
    -g ${VIDEO_GOP} \
    -map 0 -f flv -map 3  ${RTMP_URL3} \
  -c:v libx264 \
    -pix_fmt yuv420p \
    -profile:v main \
    -preset veryfast \
    -minrate ${VIDEO_BITRATE} \
    -maxrate ${VIDEO_BITRATE} \
    -g ${VIDEO_GOP} \
    -map 0 -f flv -map 4  ${RTMP_URL4} \````
    
I guess I need some performance issue. How can I add **tee** or use one decoded video in all outputs. 


  


• Anomalie #2374 (Fermé) : request url too long

  18 octobre 2011, par cedric -

  corrigé par r18613 et r18614 : la sortie brutale sur $conflit provoquait la redirection erronée à cause de l’ajax.