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Updated readme with FAQ and system requirements

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2021-01-11 11:45:56 +01:00
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@@ -70,11 +70,47 @@ Here is an explanation of some of the more important settings.
### Video Export ### Video Export
* Encoding Options: Set options for video/GIF encoding. Refer to the **FFmpeg** and **Gifski** documentations. * Encoding Options: Set options for video/GIF encoding. Refer to the **FFmpeg** documentation for details.
* Minimum Video Length: Make sure the output is as long as this value by looping it. * Minimum Video Length: Make sure the output is as long as this value by looping it.
* Maximum Output Frame Rate: Limit frame rate, for example, if you want a 60 FPS output from a 24 FPS video. * Maximum Output Frame Rate: Limit frame rate by downsampling, for example, if you want a 60 FPS output from a 24 FPS video.
### Debugging / Experimental ### Debugging / Experimental
* Show Hidden CMD Windows: This will show the windows for AI processes. Can be useful for debugging. * Show Hidden CMD Windows: This will show the windows for AI processes. Can be useful for debugging.
* FFprobe: Count Frames Manually: This uses a slower way of getting the input video's total frame count, but works reliably. * FFprobe: Count Frames Manually: This uses a slower way of getting the input video's total frame count, but works more reliably.
## System Requirements
#### Minimum:
* Vulkan-capable GPU (Nvidia Kepler or newer, AMD GCN 2 or newer)
#### Recommended:
* Modern CUDA-capable GPU (Nvidia Maxwell or newer) with 6 GB VRAM or more
* 16 GB RAM
* Modern CPU (Intel Core 7xxx Series or newer, AMD Ryzen Series)
## Frequently Asked Questions (FAQ)
**Q:** What's the difference between RIFE CUDA and RIFE NCNN? Which one should I use?
**A:** The results should be identical, however, RIFE-NCNN also runs on AMD cards, CUDA only on Nvidia. If you have an Nvidia card, use CUDA as it's faster.
**Q:** What is frame de-duplication for? When should I enable or disable it?
**A:** It's primarily for 2D animation, where the video has consecutive frames without changes. These have to be removed before interpolation to avoid choppy outputs. Enable it for 2D animation, disable it for constant frame rate content like camera footage or 3D rendered videos.
**Q:** My output looks very choppy, especially in dark (or low-contrast) scenes!
**A:** Disable De-Duplication (or reduce the threshold if you still need it)
**Q:** What's the technical difference between the de-duplication modes "Remove During Extraction" and "Remove After Extraction"?
**A:** "During" uses ffmpeg's `mpdecimate` filter and won't extract duplicate frames at all. "After" extracts all frames and *then* checks for duplicates by checking the image difference using Magick.NET, which is slower but more accurate and flexible.
**Q:** How does Auto-Encode work, and should I enable or disable it?
**A:** It encodes your output video during interpolation, instead of afterwards. Enable it unless you have a very weak CPU.
**Q:** I downloaded a "Full" package but now want to switch to my own system Python installation. How do I do that?
**A:** Go to `FlowframesData/pkgs/` and delete the folders `py-tu` or `py-amp`, whichever you have. Flowframes will now try to use system python.