Read the FAQ for information on Shotcut’s use of the hardware encoder and parallel processing. Shotcut - Frequently Asked Questions Up until recent generations of hardware encoders they in general produced poorer quality videos with much increased filesizes. In consumer PCs and laptops they were designed more for fast streaming of video than producing high-quality videos. For me Shotcut ...
What it currently does to me, I avoid maybe export graphics issues (if, while export, Parallel Processing is unchecked)… And I’m still wondering what that Parallel Processing does (in case of export)…, or is meant for.
The feature Steve mentioned: “Multi-core parallel image processing (when not using GPU and frame-dropping is disabled)” is for when previewing, and the “Parallel Processing” option in Export does the same thing. But, again, due to bottlenecks and deficiency, it cannot always use all CPUs 100%. More cores..., what will happen?
For example, encoding a simple 55 seconds 1218x2160 video project takes longer than 30 minutes (x264, dual pass, parallel processing is ON ) - which makes no sense. For example, when I use Avidemux to encode the same video with the same encoding settings and even with preset=veryslow, it only takes about 5-6 minutes and CPU usage is about 80%.
Hello, What is the purpose of parallel processing? In export should it be checked or not although it is checked automatically? In FAQ it is recommended not checked it.
This is not a bug. Export > Advanced > Video > Parallel processing is not multiple jobs; it is frame-threading for a single job. See how this checkbox is located within the Video tab and not a general option? Please do not make every post a bug. Is it better behavior to ask first in Help/How To I strongly recommend against the trick you are doing to make multiple jobs run unless you have more ...
Hey everyone, I’ve been trying to export a video in ogv format, but fails every time. I dug around the forum and tried suggested solutions, like: setting B frames to 0 untick preview scaling / parallel processing untick use hardware decoder But no matter what I do, export fails. Any tips? [h264 @ 0x12c11fa00] Reinit context to 1920x1088, pix_fmt: yuv420p [h264 @ 0x12c330510] Reinit context ...
The Parallel Processing option is a feature of Shotcut, and has nothing to do with the Codec. If you set it then Shotcut will use up to 4 background threads to render 4 video frames concurrently while editing. If you set the Codec Threads say to 8 then FFMPEG will attempt to use all 8 threads to encode the video.
However, I do expect there to be a good quality improvement with this upgrade plus it can do AV1 encoding. Update: you can turn on Export > Video > Parallel processing to try to make it feed the hardware encoder faster. Understood. I was able to find the parallel processing setting and will try turning this on. Thank you all for the advice.
