File Viewer

Usage

fileviewer.exe [video_file_or_url] [settings_file]
fileviewer.exe --help
ArgumentDescription
video_file_or_urlPath to a local video file, or an http/https URL to download
settings_filePath to settings.txt (optional; auto-downloaded for URLs)

Description

The file viewer loads video from disk files or web downloads rather than shared memory. It decodes all frames into a local buffer for instant random-access navigation. It provides the same grid line overlay and distance measurement as the live viewer, making it useful for:

Opening Files

From the command line

# Local file
fileviewer.exe videos\jump_001.mp4

# Local file with specific settings
fileviewer.exe videos\jump_001.mp4 my_settings.txt

# Download from web
fileviewer.exe https://www.thehansens.com/tournament/jump_001.mp4

File-open dialog

If no argument is given, the file viewer presents a standard Windows file-open dialog where you can browse for a video file.

Web download

When given a URL, the file viewer downloads the video file to a temporary directory. It also attempts to download a companion settings.txt from the same web directory, so that grid line calibration data is available for distance measurement.

Supported Formats

Controls

Same as the live viewer:

KeyAction
Right ArrowStep forward 1 frame
Left ArrowStep back 1 frame
Down ArrowStep forward 7 frames (Shift: 15 frames)
Up ArrowStep back 7 frames (Shift: 15 frames)
Page DownJump forward 25 frames
Page UpJump back 25 frames
1Toggle main grid lines
2Toggle sub-meter grid lines
F1Open help documentation
ESC or QQuit
Mouse ActionEffect
Move cursorDistance readout updates at cursor position
Hold right button + move left/rightFast navigation through the video at 3× speed; move mouse left to go backward, right to go forward
Hold right button + Shift + move left/rightExtra-fast navigation at 6× speed
Scroll wheelStep forward or backward one frame at a time

Frame Counter

The current frame number and total frame count are displayed in the top-right corner of the video (e.g., "42/520").

Memory Usage

The file viewer loads up to 2000 frames into memory (~4.6 GB). Longer videos are truncated at 2000 frames (~33 seconds at 60fps).

Troubleshooting

Norton Antivirus blocks or deletes fileviewer.exe

Norton may flag fileviewer.exe as suspicious because it is not digitally signed. Norton can quarantine or delete the file without warning. To prevent this:

  1. Open Norton Security (or Norton 360)
  2. Click Settings (gear icon) → AntivirusScans and Risks
  3. Under Exclusions / Low Risks:
  4. Click OK to save
If Norton has already quarantined the file, open Norton SecuritySecurity History, find the quarantined item, choose Restore, and then add the exclusion.

See Also