executor.js:
- transcodeVideo() now accepts videoMinRate, videoMaxRate, videoBufSize
- When set, passes -minrate/-maxrate/-bufsize to FFmpeg for ABR/VBR mode
- libx264 operates with per-scene quality variation within the envelope
proxy.js:
- Target average: 750k (gpu_bitrate_mbps=0.75)
- Min: 375k (50% of target), Max: 998k (~133%), Buffer: 2× max
- Gives effective range of ~500k-1M depending on scene complexity
- Log now shows VBR min-max-avg
- GPU fallback also passes VBR params
- Default videoBitrate changed from 10M to 750k in executor.js
ZGaetano
e4d4c00f52