[FFmpeg-trac] #6038(ffmpeg:new): Capturing from Decklink card broken after December 10 releases
FFmpeg
trac at avcodec.org
Thu Dec 22 12:30:09 EET 2016
#6038: Capturing from Decklink card broken after December 10 releases
-------------------------------------+-------------------------------------
Reporter: BlackScreen | Type: defect
Status: new | Priority: normal
Component: ffmpeg | Version: git-
Keywords: decklink | master
capture broken | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Summary of the bug:
I recently encountered a problem, when updating my FFmpeg version from a
release in Mid November, to the current one. I am using the Windows builds
(64 Bit) from Zeranoe.
FFmpeg is used in one of my scripts to capture video from a Decklink card.
After the update, I get an error message and it does not work.
I then checked the recent versions and found the last working version was
the one labelled "20161210-edb4f5d". The next one (20161216-a5cf600) does
not work and all after that do not work either.
I get the error message: "Unrecognized option 'video_input' - Error
splitting the argument list: Option not found". The same happens when I
strip the "video_input"-option from the command line and also if I delete
"audio_input". Then the error message is: "Unknown input format:
'decklink'"
I should say that I use VLC to check the recording via the local UDP
stream.
Evertything else should be self explanotory.
I have attached for you the log files of my tests with the current build,
3.2.2 and the last working version. I quit the working version after about
6 seconds of capturing.
How to reproduce:
{{{
FFmpeg.exe -r 25 -rtbufsize 2048M -channels 2 -video_input sdi
-audio_input embedded -f decklink -i "DeckLink HD Extreme 3D at 9"
-filter_complex "[0:v] yadif, split=2 [recording] [stream]" -map
"[recording]" -map 0:a:0 -vcodec libx264 -s 1920x1080 -pix_fmt yuv420p
-preset ultrafast -crf 18 -profile:v high -level 4.0 -acodec aac -ab 256k
"capture.mp4" -map "[stream]" -map 0:a:0 -vcodec libx264 -s 1920x1080
-pix_fmt yuv420p -preset ultrafast -crf 18 -profile:v high -level 4.0
-acodec aac -ab 256k -f mpegts "udp://localhost:1234" -hide_banner
ffmpeg version N-82833-gedb4f5d
built on 2016-12-10
}}}
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Ticket URL: <https://trac.ffmpeg.org/ticket/6038>
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