Media Processing & Transcoding Pipeline
Every image, video, and audio file uploaded to GN-Apex is automatically processed by our dedicated media cluster—reducing file sizes by up to 80% while preserving visual clarity.
“Images are converted to WebP/AVIF and stripped of private EXIF GPS metadata. Videos receive faststart streaming optimizations automatically.”
Media Optimization Engine
Uploaded media assets are processed through specialized conversion pipelines based on file type:
Image Optimization
Converts PNGs and JPEGs to WebP and AVIF with subtle unsharp-masking to recover detail lost during downscaling.
Video Transcoding
Transcodes MP4/MOV uploads to H.264 (CRF 26) and relocates the MOOV atom to the front for instant web playback.
Audio Normalization
Standardizes sample rates to 44.1kHz and applies EBU R128 loudness normalization (-16 LUFS) for balanced playback.
EXIF & GPS Stripping
Strips embedded camera serials, geographic GPS coordinates, and personal device information before publishing.
Image Compression & Privacy Stripping
Images are processed using an automated pipeline:
- Auto-Orientation: Inspects camera rotation tags and rotates images upright before metadata removal.
- Resolution Downscaling: Large 24MP smartphone photos are scaled down to web-optimal resolutions (e.g. max 2048px width) without enlarging smaller assets.
- EXIF Scrubbing: Strips embedded GPS coordinates, camera models, and timestamps to protect user privacy.
- WebP/AVIF Encoding: Encodes assets at 82% quality (effort level 4) with smart color subsampling.
Video Transcoding & Streaming
Uploaded video clips are optimized for immediate web streaming:
| Parameter | Type | Requirement | Description |
|---|---|---|---|
| Video Codec | H.264 (libx264) | Optional | Universal playback compatibility across all iOS, Android, and desktop browsers. |
| Rate Control | CRF 26 (Fast Preset) | Optional | Constant Rate Factor balancing small file sizes with clean visual fidelity. |
| FastStart (MOOV) | +faststart flag | Optional | Relocates the video header to the beginning of the file so playback begins instantly before full download. |
| Audio Track Guard | Safe AAC / Silent Drop | Optional | Safely handles silent screen recordings without transcoding errors. |
Audio Loudness Normalization
Podcast episodes, speech clips, and music tracks are resampled to 44,100 Hz stereo with EBU R128 loudness normalization (-16 LUFS target) to prevent sudden volume spikes across different listening devices.