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Codeforces (c) Copyright 2010-2024 Михаил Мирзаянов
Соревнования по программированию 2.0
Время на сервере: 06.05.2024 22:07:52 (j1).
Десктопная версия, переключиться на мобильную.
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Hello I want to know witch plug-ins do you use into the arena.
KawigiEdit.
What software do you use to grab screen video? And which main settings do you set?
I tried to use CamStudio with ".mp4 output" and it's default "Intel IYUV codec", but could not get rid of uncompressed temporary file (1Gb/min), which is truncated after 4Gb (even in NTFS filesystem).
I use CamStudio. I have mixed feelings about it. Sometimes it works fine (and uses ~40% of one core of my CPU), but sometimes the file that it saves is corrupted. Therefore, I find it unreliable.
I use it with CamStudio Lossless Codec (I think I needed to install that separately), at 25 fps. At 1680x1050, the file is about 0.8GB per hour. Then I transcode it to x264-lossless using ffmpeg (it is then under 50MB per hour) and upload that to youtube. This would not be possible on the fly as the transcoding is too time-intensive (could be feasible on a very fast computer). I get a slight discoloration after the transcoding (it's something with the color profiles / pixel format / something, I couldn't get it fully resolved, but it doesn't bother me too much).
Then it is also problematic to upload a video of height 1050 to YouTube: it doesn't then have the 1080p option (and the best one is 720p, which is bad). It would be easier if I just had a higher-resolution display :) What I do is I pad it to 1080 with black stripes when transcoding.
What I just learned: when the file that CamStudio saves seems to be corrupted (does not open in Media Player Classic or VLC), it fortunately turns out that it still can be transcoded to x264 via ffmpeg just fine (and be watched then). So this means that CamStudio is not all that unreliable.