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Assuming you’re using FFMPEG? Do you have a good guide for balancing quality and size? I’ve searched but never found something that really nails it for me. I h
by jackvalentine 8mo ago
Assuming you’re using FFMPEG?
Do you have a good guide for balancing quality and size? I’ve searched but never found something that really nails it for me. I have until now just been keeping everything as it streamed off the dvd or bluray in mpeg4 or h264 in an mkv and yeah, time to re-encode in to something more reasonably sized.
- Our_Benefactors 8mo agoYes, I wrote a python script that uses FFMPEG and detects the bitrate of the file and determines approximately what CQ to use. If the original file has a low bitrate, by reencoding it with a high CQ you can actually increase the file size (lol). Normal CQ = 28 Aggressive CQ = 34 # Thresholds to detect ultra-low-bitrate inputs (use more aggressive encoding) # (width, height) → min sensible bitrate (bps). If stream <= threshold, use aggressive profile. LOW_BITRATE_THRESHOLDS = [ ((3840, 2160), 13_000_000), # 4K ≤13 Mbps → use aggressive encoding ((2560, 1440), 8_000_000), # 1440p ((1920, 1080), 5_000_000), # 1080p ((1280, 720), 2_500_000), # 720p ((854, 480), 1_200_000), # 480p ]
- jackvalentine 8mo agoThanks!