A good lossless workflow
Hi,
Is it a good way (the only one?) to work lossless?
ffmpeg -i 'input.avi' -vf fps=24000/1001 -compression_algo lzw C:\Users\m.rossi\Desktop\frames\frame%d.tiff
Or is better this?
ffmpeg -i input.avi -c:v libx264 -preset veryslow -qp 0 output.mkvThanks,
PS
maybe in the future it will be possible import MagicYUV file? :)
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Mario Rossi We currently don't offer support for the MKV container and MagicYUV, but you can use image sequences if you need uncompressed files. We still recommend Prores 444XQ, it's visually lossless and can hold up several generations of renders quite well.
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Mario Rossi If you need a high-end, lossless workflow, DPX image sequences are the best and most efficient way.
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Guido Henkel thanks for this tip!
I did a quick test with 5 min avi file:compressed tiff --> 1GB (every frame file with different KB)
DPX --> 4,57GB (every frame file 640KB)
Cheers,
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Mario Rossi Yes, that sounds about right. Because the DPX images are completely uncompressed, they are a lot larger, of course, and have a fixed file size.
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DPX is a great solution as long as you have enough storage space and, depending on resolution, speed.
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Gustavo Mendes there is not yet an option "compression: LZH/ ZIP/ JPEG/ PackBits/ Uncompressed" for TIFF on export, right?
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Mario Rossi We do not offer compressed TIFF options, just 8 or 16 bit RGB.
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