Changes between Version 4 and Version 5 of Ticket #1036, comment 4
- Timestamp:
- 11/18/15 18:59:35 (5 years ago)
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Ticket #1036, comment 4
v4 v5 1 1 Let me first answer some of your 'why' questions. 2 [[BR]] 2 3 3 4 Why libreoffice? 4 5 Because Libreoffice (or her proprietary sisters) is what most of the people use for presentation, I assume. 6 [[BR]] 5 7 6 8 … … 9 11 Because Xvfb does not support opengl, thus producing black screen. Xdummy supports openGL, but, as you too have confirmed after testing, does not work with Ubuntu trusty. 10 12 13 [[BR]] 11 14 12 15 … … 14 17 That appeared to be fastest in my case. I am open to any suggestion. 15 18 19 [[BR]] 16 20 17 21 … … 19 23 UPDATE: 20 24 25 [[BR]] 21 26 22 27 … … 24 29 25 30 31 [[BR]] 26 32 27 33 … … 30 36 31 37 38 [[BR]] 32 39 33 40 … … 35 42 §3 while capturing, ffmpeg cannot connect to with an error " [x11grab @ 0x2809c00] Cannot open display :99, error 1.\n :99: Input/output error". 36 43 44 [[BR]] 37 45 38 46 … … 40 48 41 49 CAVEAT: 42 The capture was working fine earlier, but not the display refreshment of the client. Now the display refreshes fine, but capture does not work. 43 50 '''The capture was working fine earlier, but not the display refreshment of the client. Now the display refreshes fine, but capture does not work. 51 ''' 52 [[BR]] 44 53 45 54 … … 47 56 48 57 I tried to start virutal X server and xpra with different commands (not the aggregated one as Antoine suggested) like I reported earlier, in that case, the capture works, but the display in captured size is 4K, but the content from libreoffice is same as the display size-FullHD (1/4th of the captured screen). 58 [[BR]] 49 59 50 60 Used this comamnd to capture: 61 [[BR]] 51 62 63 64 {{{ 52 65 $ ffmpeg -f x11grab -s 3840x2160 -i :99 -r 24 -deadline realtime -b:v 1M -threads 5 -qmin 0 -qmax 50 -crf 5 -preset ultrafast -f matroska 4k_xpra.mkv 66 }}}
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