Jan 8, 2013
Shooting with Canon 5DmkII DSLR, which provides 1920x1080 .MOV files at 29.97 fps. Data rate on the files is about 45Mbps, with a total bit rate marginally higher.I have been asked to output .MOV at 29.97, 1920x1080 progressive with PhotoJPEG compression at 90%, square pixels.
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In Proj. Properties, I seem to need Microsoft AVI (MPEG doesn't allow 1920x1080 option). No compression, and have obviously kept 29.97 fps. Whether I want to perform non-square pixel rendering at this point, and haven't yet found any info on whether the camera shoots square or non-square pixels. Or I want frame-based or upper or lower fields first. I haven't found any explanation of what this means in the product documentation.
I've created an output template to give 1920x1080 at 29.97 fps, 24-bit colour. Again don't know whether to pick frame-based or upper or lower field first. Using PhotoJPEG compression (100% seems the only setting available, but that's OK).
In the final Create dialogue box Options, there is another chance to render non-square pixels (I'm assuming "no" here since I want square), as well as a checkbox for Smart Render, but again no explanation as to why I would need it.
So I've been practicing with 10sec clips to see what happens. With the above settings, the creation takes a couple of minutes and I have been able to generate a huge 1.6GB output file. Play is somewhat jerky since I don't think my computer can keep up. The input files are e.g. 233MB for 44sec, or about 5.3 MB/sec. Am I wrong to expect the output to be about the same size? Curiously, I have been able to generate 50MB files for two of the videos, and the rendering only took a couple of seconds. Unfortunately I have not been able to repeat this, but rather get these 1.6-1.7GB files as the routine. I have tried different input files with the same result.