Most of you are probably familiar with losslessly compressing DNG raw video with DNG Converter. The compressed DNG sequences work fine in both Resolve and ACR.
I've written a small tool (DNGStrip) to strip these of useless stuff which is unconditionally added by DNGConverter to each frame: a thumbnail and some pointless tags. Mac and Windows versions, free to use. Pretty fast. Download link in this article: Lossless compression for DNG raw video + introducing DNGStrip. The text also gives more context on the whole process.
In short, compressed 16:9 frames will lose 114kb per frame, compressed 2:1 frames will lose 102kb per frame after going through DNGStrip. Test footage (2:1 1920x960 Canon 5dm3 raw) was reduced from 710gb to 399gb with DNG Converter and then further down to 377gb with DNGStrip. That's 53.1% of the original size for full original image quality and average bitrate only 317 mbps. Not bad, methinks.
I've written a small tool (DNGStrip) to strip these of useless stuff which is unconditionally added by DNGConverter to each frame: a thumbnail and some pointless tags. Mac and Windows versions, free to use. Pretty fast. Download link in this article: Lossless compression for DNG raw video + introducing DNGStrip. The text also gives more context on the whole process.
In short, compressed 16:9 frames will lose 114kb per frame, compressed 2:1 frames will lose 102kb per frame after going through DNGStrip. Test footage (2:1 1920x960 Canon 5dm3 raw) was reduced from 710gb to 399gb with DNG Converter and then further down to 377gb with DNGStrip. That's 53.1% of the original size for full original image quality and average bitrate only 317 mbps. Not bad, methinks.