On Fri, 3 Jul 2026 at 09:18, Simon Sohel Baroi via ffmpeg-user < [email protected]> wrote:
> Hi Guys, I am running ffmpeg in UBUNTU VM in Openstack. Nvidia L40s (48gb) > GPU is attached in Passthrough mode in this VM. 2% load in CPU. 20GB > Memmoery load in GPU out of 48GB. I'm transocding live channels. Source is > UDP multicast. Soruce is almost clean. > > Problem is, Im getting MACRO Block as link the bellow picture. Is it a > porblem of the VM ? > > > #!/bin/bash > > /usr/local/bin/ffmpeg -y \ > -hwaccel cuda \ > -hwaccel_output_format cuda \ > -c:v h264_cuvid \ > -deint 2 \ > -drop_second_field 1 \ > -thread_queue_size 16384 \ > -fflags +genpts+igndts+discardcorrupt \ > -probesize 100M \ > -analyzeduration 20M \ > -re \ > -i "udp:// > 230.2.2.4:3022?overrun_nonfatal=1&fifo_size=100000000&buffer_size=33554432" > \ > -filter_complex "[0:v:0]fps=25,split=1[v1]" \ > \ > -map "[v1]" -map 0:a:0 \ > -c:v h264_nvenc \ > -preset p4 \ > -profile:v high -level 4.2 \ > -b:v 3500k -maxrate 4500k -bufsize 8000k \ > -g 50 -keyint_min 50 \ > -rc cbr -rc-lookahead 10 -no-scenecut 1 -strict_gop 1 \ > -fflags +genpts+igndts \ > -use_wallclock_as_timestamps 1 \ > -vsync 1 \ > -af "aresample=async=1:first_pts=0:min_hard_comp=0.100000" \ > -c:a libfdk_aac -b:a 128k -ar 48000 \ > -f tee "[f=mpegts]srt:// > 172.31.2.122:4681?...|[f=mpegts]srt://10.50.2.152:4681?.. > <http://172.31.2.122:4681?...%7C[f=mpegts]srt://10.50.2.152:4681?..>." > > > > _______________________________________________ > ffmpeg-user mailing list -- [email protected] > To unsubscribe send an email to [email protected] You can start by removing -re before input. You're ingesting a livestream, not a file input. _______________________________________________ ffmpeg-user mailing list -- [email protected] To unsubscribe send an email to [email protected]
