pogucam 0.1.22

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pogucam - Poor Guy Camera

Overview

pogucam is a simple camera utility that can read JPEG streams from an IP address, capture video from a local video device, or experimentally receive images from a local MQTT server.

Input Sources

• JPEG stream from IP address (default port 8000)
• Video device at /dev/videoX (default 0)
• Experimental: image topic from local MQTT server 'image/raw8000'

Running pogucam

Run pogucam from the command line with the following syntax:

pogucam [URL] [-r RESOLUTION] [-f FOURCC]

Arguments:
  URL           IP address or device path (default: 127.0.0.1)

Options:
  -r, --resolution RESOLUTION   Set resolution (default: 640x480)
  -f, --fourcc FOURCC           Set pixel format: YUYV or MJPG (default: YUYV)

Examples:
  pogucam 192.168.1.10 -r 800x600 -f MJPG
  pogucam /dev/video0
 # for video 0 with resolution and mode
  pogucam  0 -f YUYV -r 1920x1080

Keypress Commands Summary

• S: Save image
  • S: save one image
  • Shift+S: toggle saving all images
  • Ctrl+Shift+S: toggle saving JPG format
  • Alt+S: toggle saving FITS only
• X: Switch resolution / extend image
  • X: toggle local 2x image extend
  • Shift+X: send remote switchreson command
  • Ctrl+X: send remote switchresoff command
• P: Toggle print text overlays
  • P: toggle terminal text
  • Shift+P: toggle overlay text
• E: Adjust exposure (remote)
  • E: increase exposure
  • Shift+E: decrease exposure
  • Ctrl+E: reset exposure
• G: Adjust gain (remote)
  • G: increase gain
  • Shift+G: decrease gain
  • Ctrl+G: reset gain
• Y: Adjust gamma (remote)
  • Y: increase gamma
  • Shift+Y: decrease gamma
  • Ctrl+Y: reset gamma
• D: Adjust local gamma
  • D: increase gamma
  • Shift+D: decrease gamma
  • Ctrl+D: reset gamma
• W: Open web browser to URL (local)
• Z: Zoom (local)
  • Z: zoom in
  • Shift+Z: zoom out
  • Ctrl+Z: reset zoom
• H, J, K, L: Move red cross (local) or send remote commands with Ctrl+Shift
• V: Toggle green cross (remote)
• C: Toggle red cross (local)
• I: Integrate accumulate (local/remote)
  • I: increase integration
  • Shift+I: decrease integration
  • Ctrl+I: reset integration
  • Ctrl+Shift+I: toggle show accumulation buffer
  • Alt+I: toggle accumulation display mode (avg/sum)
• B: Background image operations (local/remote)
• F: Foreground image operations (local)
• R: Rotate image (local)
• 1,2,3,4: Load/save configurations
• T: Test commands and timelapse (local/remote)
• A: Timelapse control (local)
• Esc or Q: Quit application

Notes

• Remote commands are sent via sendcommand with JSON data.
• Local commands affect display or saving behavior.
• Some commands print helpful info or ffmpeg usage hints.

MQTT

There are mqtt functionalities in development:

Raw Image sent to mqtt

Raw image means no distorion when YUYV mode is used. With the image to image/raw8000{.verbatim} topic (for now [2025-07-25 Fri]), other information is encoded and reported.

height, width = image.shape[:2]
header = struct.pack(
    '!HHQddIfff',
    width,
    height,
    int(framenumber),
    timestamp.timestamp(),
    recording_started.timestamp(),
    0,  # padding for alignment if needed
    float(exposition),
    float(gain),
    float(gamma)
)
payload = header + image.tobytes()

Accepting expo,gain,gamma commands

Not

Hanging on topics to display widgets

Not