[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          |
-----------------------------------+----------------------------------
 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>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker


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