iPhone OneDrive FFmpeg Open Source Auto-Converter
================================================

Mass-market default
-------------------
This package defaults to three outputs:

1. 4K MP4 Original Quality
   - Attempts a fast remux with no re-encoding.
   - Preserves original iPhone quality.
   - Adds fast-start metadata for web/S3/CloudFront playback.

2. 1080p H.264 Fallback
   - Maximum compatibility for older PCs, phones, browsers, support desks, schools, email, forums, LMS systems, and nontechnical users.

3. 4K H.265 16 Mb/s Streamable
   - Smaller than original.
   - Good for S3/CloudFront links.
   - Intended to preserve useful 4K detail while being practical to stream.

High-detail screen recording option
-----------------------------------
For YouTube 4K computer screen recording, small UI text, code, terminals, spreadsheets, or software demos, 16 Mb/s may be too low.

Use:
config_YOUTUBE_4K_SCREEN_RECORDING_HIGH_DETAIL.json

That enables:
- 4K H.265 16 Mb/s
- 4K H.265 30 Mb/s
- 4K H.265 quality-based screen recording

The quality-based preset uses NVENC constant-quality style settings instead of a fixed bitrate target.

Ken Lab 4K-only profile
-----------------------
For Ken's lab / ChatGPT / YoloLiv / CloudFront workflow, use:

config_KEN_LAB_4K_ONLY.json

No IIS. No PHP. No database server.
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The tracking mechanism is a plain append-only JSONL ledger:

D:\Media-Inbox\Auto-Converted\logs\conversion-ledger.jsonl

This survives restarts and is easy to inspect, back up, repair, or import into a later SQLite/PHP/API system.

Main scripts
------------
START_VISIBLE_DEBUG_MODE.bat
  Run this first so you can see what is happening.

INSTALL_BACKGROUND_TASK.bat
  Installs a hidden Scheduled Task at Windows logon.

STOP_BACKGROUND_TASK.bat
  Stops the background task.

UNINSTALL_BACKGROUND_TASK.bat
  Removes the background task.

Auto_iPhone_MOV_Converter.ps1
  Main PowerShell converter.

Output folders
--------------
D:\Media-Inbox\Auto-Converted\4K-MP4-OriginalQuality
D:\Media-Inbox\Auto-Converted\Fallback-1080p-H264
D:\Media-Inbox\Auto-Converted\4K-H265-16Mbps-Streamable
D:\Media-Inbox\Auto-Converted\4K-H265-30Mbps-HighDetail
D:\Media-Inbox\Auto-Converted\4K-H265-QualityBased-ScreenRecording
D:\Media-Inbox\Auto-Converted\logs

FFmpeg setup
------------
Official FFmpeg page:
https://ffmpeg.org/download.html

Windows builds:
https://www.gyan.dev/ffmpeg/builds/

Simplest installation:
1. Download "release essentials" from gyan.dev.
2. Extract it.
3. Find bin\ffmpeg.exe.
4. Copy ffmpeg.exe into this converter folder.

Recommended first run
---------------------
1. Copy ffmpeg.exe into this folder.
2. Double-click START_VISIBLE_DEBUG_MODE.bat.
3. Confirm that MP4s appear in D:\Media-Inbox\Auto-Converted.
4. Then install background mode if desired.

Profile switching
-----------------
To switch profiles:
1. Rename config.json to config_BACKUP.json.
2. Copy the desired config_*.json.
3. Rename the copy to config.json.

Open-source design note
-----------------------
This project is intentionally simple and rebuildable:
- one folder
- plain JSON config
- plain PowerShell
- plain BAT launchers
- append-only JSONL ledger
- no IIS/PHP/database dependency