“ Mathematically Lossless” means your intermediate file will be a bit-for-bit perfect match to the original when both files are decompressed and compared. There are three levels of lossiness when it comes to video codecs. The transcoded file will be your intermediate file, and the goal for this intermediate is to be as true to the original as possible, because it stands in the place of your original file from now on. This file will need to be transcoded to a constant frame rate format in order to sync up nicely with other videos on a timeline. It will most likely be variable frame rate video, which editors cannot handle gracefully. Of your three video sources, only the cell phone falls into this category. The truest sense of the word “intermediate” means to create a replacement file because the original file is not usable at all in its current state. You mentioned three video sources: a GoPro, a Pen-F, and a cell phone. Many you’re on the right track, but I think these formats will make more sense if we take a closer look at the workflow. The files created as a result of the above conversion are significantly larger than the originals so I’m taking that as a good sign. (There was also an option checkbox to “Create files and folder structure for proxy editing” - I have no idea what proxy editing is so left this unchecked).Īm I on the right tracks? Is the intermediate file option I selected OK? Is my understanding of intermediate files correct? When I create an intermediate file I’m effectively uncompressing the file to work with in the editing process? It opens up editing options and is a better start point when it comes to compressing the final edit into a delivery format/file?Ĭreating the intermediate files… I used Eyeframe Converter and, in the Conversion Settings, set the format under the “Editing” tab to “Mpeg2 I-Frame HD - Proxy Quarter Size”.
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I’m just starting a new editing project and, as a novice, want to check my understanding of how to create and purpose of intermediate files.įirstly my understanding of purpose… The source files are (generally?) compressed (I assume to save space and processing power on the source device (camera, phone, Go Pro, etc).
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