Build FFmpeg #105

Job	Run time
Pre Checks	1s
Build base image	9m 43s
Build target base image (win64)	37m 54s
Build target base image (win32)	36m 25s
Build target-variant image (win64, gpl)	1h 2m 14s
Build target-variant image (win64, gpl 7.0)	1h 5m 28s
Build target-variant image (win32, gpl)	41m 23s
Build target-variant image (win32, gpl 7.0)	40m 59s
Build ffmpeg (win64, gpl)	8m 53s
Build ffmpeg (win64, gpl 7.0)	8m 49s
Build ffmpeg (win32, gpl)	7m 24s
Build ffmpeg (win32, gpl 7.0)	7m 35s
Publish release	37s
	5h 27m 25s

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