I have many hour long videos I need to edit, most of which are 1920x1080 at 60fps, 40Mbit/s. Attempting to play these videos in shotcut is a nightmare, they will not play smoothly until the eighth time playing the same small portion. I simply can’t edit the video when I can barely tell what part I’m at. I haven’t even edited the videos, playing the video in timeline or project source, the playback is not smooth whatsoever.
I’ve looked at other threads, it’s suggested to try preview scaling and/or storage proxy. Neither work - I have the footage stored on network based storage, copying them to local NVMe SSD storage didn’t help. Setting preview scaling to 360p has a noticeable impact on quality, but still doesn’t help (again off the SSD). Attempting to playback the footage also hits my CPU with a 50% load.
I really can’t imagine this is the intended experience for the software, if I could get a hand sorting this issue out, it would be greatly appreciated.
OS: Windows 10 21H1 Build 19043.1165
Shotcut version: 21.10.31
Nvidia Driver: 472.12
CPU: Ryzen 7 2700X - 8C/16T
RAM: G.SKILL Ripjaws V Series (2x16GB@3200MHz)
Mother board: MSI X470 Gaming Pro Carbon
Video Card: Gigabyte GTX 1080 TI 11GB
Power Supply: EVGA 650W - EQ (80+ Gold)
OS Drive: Samsung Evo 970 - 1TB NVMe M.2
2nd Drive: Samsung Evo 970 Plus - 1TB NVMe M.2
Edit: Disabling real-time under Settings fixed the issue. Playback is now smooth.
60fps is a lot of frames. Some processors are simply not fast enough to be real-time at 60, but might be fine at 30/25/24.
What is the video format? If it’s anything that ends with .MTS or .M2T or .TS, then part of the issue is probably due to the format. “Convert to Edit-Friendly” can usually improve that experience. Although, I would have expected proxy to improve speed as well. I’m surprised it didn’t.
Settings > Display Method can sometimes give very different performance speeds with OpenGL vs DirectX vs ANGLE. Worth trying them all.
No difference between OpenGL and DirectX, however disabling real-time fixed the issue. It doesn’t put nearly as much of a load on my CPU and is as smooth as butter. Thought I had tried this setting before, I suppose I didn’t. Thanks for the help, going to make editing a lot easier.
Tente mudar o formato do video para MP4,AVI, WMM, etc, vai experimentando. E o fps, use outro. Clique na area de trabalho com o botão direito, vá em configuração de exibição, procure configurações de elementos graficos, veja se esta marcado o seu drive de video. Outra opção é limpar todos os temporários do sistema, aponte para iniciar e digite %temp%, exclua todos, as vezes o SHOTCUT (não sei porque), ele não gosta do sistema cheio de temporarios, frescura dele,rs.