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Last modified by Drunk Monkey on 2024-10-09 05:32
From version 26.1
edited by Drunk Monkey
on 2022-01-27 16:23
Change comment: There is no comment for this version
To version 28.2
edited by Drunk Monkey
on 2022-01-27 18:11
Change comment: There is no comment for this version

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... ... @@ -22,16 +22,16 @@
22 22  === Windows ===
23 23  
24 24  1. Run the VLC installer
25 +
25 25  1. Install 7-zip
27 +
26 26  1. Extract the contents of the FFmpeg zip file into a suitable directory.  I going to use C:\Local\ffmpeg\ as my FFmpeg installation location for this example.  You should see something similar to this:
27 -[[image:image-20220127221835-1.png]](((
28 -
29 -The contents of the ffmpeg filder should look like this:
29 +[[image:image-20220127221835-1.png]]
30 +\\The contents of the ffmpeg filder should look like this:
30 30  [[image:image-20220127225738-2.png]]
31 31  \\Select all the files and move them into the installation directory.  That is C:\Local\ffmpeg\ in this example.
32 32  [[image:image-20220127225847-3.png]]
33 33  
34 -)))
35 35  1. Next, add the location of the ffmpeg\bin directory to the system path.  This is necessary so you can run the command from the command line from a command shell.
36 36  \\Go to the file explorer, and look in the left hand folder list for "This PC" or "My PC" or whatever it is called on your system. 
37 37  [[image:image-20220127230601-5.png]]
... ... @@ -68,7 +68,11 @@
68 68  === Mac OSX ===
69 69  
70 70  1. Install VLC
71 +
71 71  1. Install Keka
73 +
74 +1. Install FFmpeg through the use of [[HomeBrew>>https://brew.sh]] (recommended because of all the other useful things you can install if you like this kind of stuff) or install the statically linked binary version of the [[FFmpeg binaries>>http://ffmpeg.org/download.html]] from [[https:~~/~~/evermeet.cx/ffmpeg/>>https://evermeet.cx/ffmpeg/]].  This file will need to be placed into a directory that's on your path (not yet described how to do)
75 +\\The statically linked installation is going to be faster and easier to do than the homebrew version.
72 72  )))
73 73  )))
74 74  
... ... @@ -91,11 +91,12 @@
91 91  
92 92  (% style="font-size:14px" %)This will create a video file called "screenCapture.mkv" on your desktop that you can replay using VLC Media Player.
93 93  
94 -(% style="font-size:14px" %)The parameters to the ffmpeg command have the following meaning
98 +(% style="font-size:14px" %)The parameters to the ffmpeg command have the following meanings
95 95  
96 96  (% class="min" %)
97 97  |-f gdigrab|gdigrab is the windows framebuffer, where the screen is stored
98 -|-t 6|capture 6 seconds of video and exit.  3600 = 1 hour, 14400 = 4 hours
102 +|-t 6|capture 6 seconds of video and exit.  3600 = 1 hour, 14400 = 4 hours.  If you omit this parameter, the capture will continue until you press [Control C] to gracefully tell ffmpeg to stop
103 +|(% style="font-size:14px" %)-framerate 60|if you want to see the candles paint second by second, you should have a framerate of at least 60.  Technically speaking, you actually need 120, but let's not get too crazy.
99 99  |-draw_mouse 1|capture the mouse pointer
100 100  |-i desktop|capture the entire desktop -  remember to maximize your window
101 101  |-c:v libx264rgb|this video encoder will preserve the rgb color values losslessly
... ... @@ -113,8 +113,28 @@
113 113  (((
114 114  === Mac Video Capture ===
115 115  
116 -sfasd
121 +Open a terminal window and run the following commands:
117 117  
118 -asdfasdf
123 +>(% style="font-size:14px" %)cd ~~/Desktopffmpeg -f avfoundation -t 6 -pixel_format 0rgb -capture_cursor 1 -capture_mouse_clicks 1 -framerate 60 -i "1:" -filter:v "format=yuv444p" -c:v libx265 -crf 0 -preset ultrafast screenCapture.mkv
124 +
125 +(% style="font-size:14px" %)This will create a video file called "screenCapture.mkv" on your Desktop that you can replay using VLC Media Player.
126 +
127 +(% style="font-size:14px" %)The parameters to the ffmpeg command have the following meanings
128 +
129 +(% class="min" %)
130 +|-f avfoundation|gdigrab is the windows framebuffer, where the screen is stored
131 +|-t 6|capture 6 seconds of video and exit.  3600 = 1 hour, 14400 = 4 hours.  If you omit this parameter, the capture will continue until you press [Control C] to gracefully tell ffmpeg to stop
132 +|(% style="font-size:14px" %)-framerate 60|if you want to see the candles paint second by second, you should have a framerate of at least 60.  Technically speaking, you actually need 120, but let's not get too crazy.
133 +|-pixel_format 0rgb|get the data as RGB colors instead of some bizzzare color model
134 +|-capture_cursor 1|capture the mouse pointer
135 +|-capture_mouse_clicks 1|and capture the clicks with an onscreen visual notification
136 +|-i "1:"|capture the first screen.  Not really important unless you have multiple screens and you are not capturing the primary screen
137 +|-filter:v "format=yuv444p"|transform the input colors into this color format, which is fairly quick when converting from RGB and without too much color shifting
138 +(I'm still looking to improve upon this - the windows encoding has an exact RGB color modelling which means no color shift)
139 +|-c:v libx265|encode the video using H.265 compression.  It makes for smaller videos without consuming too much processing time
140 +|-crf 0|lossless compression
141 +|-preset ultrafast|save the data as quickly as possible, don't waste too much time compressing the data.
142 +
143 +There is no point in trying to compress this video any further with these parameters.  Further compression will require a lot of time and cpu power to see any further gain.
119 119  )))
120 120  )))