- Posts: 1
- Joined: Mon Aug 15, 2016 1:34 pm
I am trying to capture a video using ffmpeg, from the HDMI input port of the Blackmagic DeckLink 4K Extreme capture card in Ubuntu Linux, but i seem to fail.
As per the ffmpeg Documentation I have tried the following:
but no matter what I do I always get this picture as a video
My ffmpeg version is :
I have two of these cards as per the following:
The display formats has available hd formats:
Has anyone had any success with this particular card and ffmpeg?
Please do share if you have.
As per the ffmpeg Documentation I have tried the following:
- Code: Select all
ffmpeg -f decklink -video_input 'hdmi' -i 'DeckLink 4K Extreme (1)@14' -acodec copy -vcodec copy ~/testCapture/card1_f14_hdmi.av
but no matter what I do I always get this picture as a video
- colorbars
- Screenshot_1_rs.jpg (2.07 KiB) Viewed 12434 times
My ffmpeg version is :
- Code: Select all
ffmpeg version git-2016-08-15-4899953 Copyright (c) 2000-2016 the FFmpeg developers
built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.3)
configuration: --prefix=/root/ffmpeg_build --pkg-config-flags=--static
--extra-cflags=-I/root/ffmpeg_build/include
--extra-ldflags=-L/root/ffmpeg_build/lib
--bindir=/root/bin --enable-gpl --enable-libass --enable-libfdk-aac
--enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora
--enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265
--enable-decklink
--extra-cflags=-I/root/decklinkSDK/Blackmagic_DeckLink_SDK/Linux/include
--extra-ldflags=-L/root/decklinkSDK/Blackmagic_DeckLink_SDK/Linux/include
--enable-nonfree
libavutil 55. 28.100 / 55. 28.100
libavcodec 57. 51.102 / 57. 51.102
libavformat 57. 46.101 / 57. 46.101
libavdevice 57. 0.102 / 57. 0.102
libavfilter 6. 51.100 / 6. 51.100
libswscale 4. 1.100 / 4. 1.100
libswresample 2. 1.100 / 2. 1.100
libpostproc 54. 0.100 / 54. 0.100
I have two of these cards as per the following:
- Code: Select all
ffmpeg -f decklink -list_devices 1 -i dummy
.....
[decklink @ 0x2e9e440] Blackmagic DeckLink devices:
[decklink @ 0x2e9e440] 'DeckLink 4K Extreme (1)'
[decklink @ 0x2e9e440] 'DeckLink 4K Extreme (2)'
The display formats has available hd formats:
- Code: Select all
ffmpeg -f decklink -list_formats 1 -i 'DeckLink 4K Extreme (1)'
[decklink @ 0x23b2440] Supported formats for 'DeckLink 4K Extreme (1)':
[decklink @ 0x23b2440] 1 720x486 at 30000/1001 fps (interlaced, lower field first)
[decklink @ 0x23b2440] 2 720x576 at 25000/1000 fps (interlaced, upper field first)
[decklink @ 0x23b2440] 3 1920x1080 at 24000/1001 fps
[decklink @ 0x23b2440] 4 1920x1080 at 24000/1000 fps
[decklink @ 0x23b2440] 5 1920x1080 at 25000/1000 fps
[decklink @ 0x23b2440] 6 1920x1080 at 30000/1001 fps
[decklink @ 0x23b2440] 7 1920x1080 at 30000/1000 fps
[decklink @ 0x23b2440] 8 1920x1080 at 25000/1000 fps (interlaced, upper field first)
[decklink @ 0x23b2440] 9 1920x1080 at 30000/1001 fps (interlaced, upper field first)
[decklink @ 0x23b2440] 10 1920x1080 at 30000/1000 fps (interlaced, upper field first)
[decklink @ 0x23b2440] 11 1920x1080 at 50000/1000 fps
[decklink @ 0x23b2440] 12 1920x1080 at 60000/1001 fps
[decklink @ 0x23b2440] 13 1920x1080 at 60000/1000 fps
[decklink @ 0x23b2440] 14 1280x720 at 50000/1000 fps
[decklink @ 0x23b2440] 15 1280x720 at 60000/1001 fps
...
[decklink @ 0x23b2440] 27 4096x2160 at 25000/1000 fps
Has anyone had any success with this particular card and ffmpeg?
Please do share if you have.