[FFmpeg-trac] #7908(ffmpeg:new): DECKLINK: Video and Audio misbehaving
FFmpeg
trac at avcodec.org
Sat May 18 16:33:01 EEST 2019
#7908: DECKLINK: Video and Audio misbehaving
-----------------------------------+----------------------------------
Reporter: catalan63 | Type: defect
Status: new | Priority: normal
Component: ffmpeg | Version: 4.1
Keywords: Decklink | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Summary of the bug:
Receiving a UDP feed on my server and process it with ffmpeg, and then
save it to a file and then forwardit to the SDI, but i receive errors
saying there is no enough buffered video and audio.
How to reproduce:
root at video-mvd-tec:/home/tecnico# /home/tecnico/FFmpeg/ffmpeg –i
udp://192.168.1.20:5004?overrun_nonfatal=1&fifo_size=50000000" -acodec aac
-ab 192k -vcodec libx264 -preset ultrafast -s 1920x1080 -r 25 -f mpegts
/home/tecnico/Escritorio/test-live2.avi -acodec pcm_s16le -ab 192k -ac 2
-vcodec v210 -s 1920x1080 -r 25 -f decklink 'DeckLink SDI (1)' -acodec
pcm_s16le -ab 192k -ac 2 -vcodec v210 -s 1920x1080 -r 25 -f decklink
'DeckLink SDI (2)'
/home/tecnico/FFmpeg/ffmpeg -i
"udp://192.168.1.20:5004?overrun_nonfatal=1&fifo_size=50000000" -acodec
aac -ab 192k -vcodec libx264 -preset ultrafast -s 1920x1080 -r 25
-profile:v 3 -acodec pcm_s16be -ac 2 -ar 48000 /home/tecnico/Escritorio
/test-live2.mov -acodec pcm_s16le -ab 192k -ac 2 -vcodec v210 -s 1920x1080
-r 25 -f decklink 'DeckLink SDI (1)' -acodec pcm_s16le -ab 192k -ac 2
-vcodec v210 -s 1920x1080 -r 25 -f decklink 'DeckLink SDI (2)'
Log
[decklink @ 0x260dc40] There's no buffered audio. Audio will misbehave!
[decklink @ 0x260dc40] There are not enough buffered video frames. Video
may misbehave!
{{{
% ffmpeg -i input ... output
ffmpeg version 4.1
built on ... Ubuntu Server 16.04
}}}
Patches should be submitted to the ffmpeg-devel mailing list and not this
bug tracker.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/7908>
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