ffmpeg: update to 3.4.1
ffmpeg: update to 3.4.1

necrophcodr/void-packages,necrophcodr/void-packages,floGik/void-packages,necrophcodr/void-packages,coredumb/void-packages,NeoChontrix/void-packages,NeoChontrix/void-packages,NeoChontrix/void-packages,floGik/void-packages,coredumb/void-packages,coredumb/void-packages,coredumb/void-packages,floGik/void-packages,floGik/void-packages,necrophcodr/void-packages,floGik/void-packages,coredumb/void-packages,NeoChontrix/void-packages,floGik/void-packages,coredumb/void-packages,NeoChontrix/void-packages,NeoChontrix/void-packages,necrophcodr/void-packages