Copy/paste into a post here, a full text report from the free MediaInfo utility of your 120GB result file. The intermediates have multiple quality settings and Cineform is no different here. Typically with lower quality source material you normally use a lower quality setting on the intermediate since the normal and higher settings are just a waste with lower quality source. The intermediate (Cineform, DNxHD/HR, Prores) will still be roughly the same size but the source is so much smaller. Now if your source media is 4Mbps, and all else being equal, then you see MUCH larger increase in file size. When converting from common media (20-40Mbps) to typical intermediate standard output one typically sees 3-5x larger files (~145Mbps). "In your experience, does the output file balloon so much?"
Well, if you got into a racecar and tried to drive it at speed in a race you are going to wreck. "What use is an excellent codec if the file cannot be edited?" You say you followed the exact instructions, but why should I believe that? It sounds like you may have output uncompressed video. We don't know what you did, your input or your output. If you want to split a file at the same time as transcode you can insert the split command into your ffmpeg tried encoding to Cineform using the exact instructions from the above link, and my 5 GB input file resulted in a 120 GB output file! Is this normal?" It links to the other threads I mentioned here and in my previous post. This thread is kinda the master transcode thread. If you really want to use ffmpeg and want to transcode to DNxHD/HR or Prores you can use ffmpeg to do that directly. It now has a native implementation of Cineform. VirtualDub is a decent choice for Cineform transcoding. Unfortunately ffmpeg does not have a Cineform encoder yet. Of course you can render Cineform for intermediates if you have the need, even if using Prores for your source media.Ĭineform transcoding. On Windows, Hitfilm can render/export Cineform but it cannot export Prores. It may now be similar tot Cineform in performance, but who knows. I've not tested Prores since Hitfilm got native Prores support. Cineform has been a very high performing option in Hitfilm. You should not have any problem using Prores in Hitfilm on Windows if Prores is your preferred choice. By native I mean you do not need to install anything to use the codec. As stated Cineform is native to Hitfilm (also native to Adobe products and Resolve).
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