FFMPEG output to Decklink Duo Buffered video frames problem

Hi,
I am using FFMPEG to decode UDP stream and output SDI using Decklink Duo.

Everything works perfectly for a few hours, after few hours I start getting "There are not enough buffered video frames. Video may misbehave!" errors.

running FFMPEG in debug log level and looking at the "Buffered video frames", it seems the number is more or less 30 for a few hours, and then starts to gradually drop. At 2 buffers the above error starts.

below is a graph showing the buffered video frames over time, the time scale is hours.

any thoughts ?

[img]Picture1.png[/img]

Maybe it comes from your UDP stream and not linked to the Decklink ?

I am getting an error while decoding html or video file stream
But able to play video successfulluy ffplay stream.ts
I am using decklink sdi 4k
Kindly any one help me
[img]FFMPEF-1.PNG[/img]
[img]FFMPEF-2.PNG[/img]
rakib@gmlstreamserver:~$ ffmpeg -re -i stream.ts.ts -pix_fmt uyvy422 -s 1920x1080 -r 25000/1000 -f decklink -device 'Decklink SDI 4K'
ffmpeg version 4.4.2-0ubuntu0.22.04.1 Copyright (c) 2000-2021 the FFmpeg developers
built with gcc 11 (Ubuntu 11.2.0-19ubuntu1)
configuration: --prefix=/usr --extra-version=0ubuntu0.22.04.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libdav1d --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librabbitmq --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzimg --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opencl --enable-opengl --enable-sdl2 --enable-pocketsphinx --enable-librsvg --enable-libmfx --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
libavutil 56. 70.100 / 56. 70.100
libavcodec 58.134.100 / 58.134.100
libavformat 58. 76.100 / 58. 76.100
libavdevice 58. 13.100 / 58. 13.100
libavfilter 7.110.100 / 7.110.100
libswscale 5. 9.100 / 5. 9.100
libswresample 3. 9.100 / 3. 9.100
libpostproc 55. 9.100 / 55. 9.100
Trailing option(s) found in the command: may be ignored.
Input #0, mpegts, from 'stream.ts.ts':
Duration: N/A, start: 12491.587333, bitrate: N/A
Program 1
Metadata:
service_name : Service01
service_provider: FFmpeg
Stream #0:0[0x100]: Video: h264 (Main) ([27][0][0][0] / 0x001B), yuvj420p(pc, bt709, progressive), 1280x720 [SAR 1:1 DAR 16:9], 50 tbr, 90k tbn, 180k tbc
Stream #0:1[0x101]: Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 48 kb/s
At least one output file must be specified
rakib@gmlstreamserver:~$

I am not allow to post url so I remove the url