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1. Download ffmpeg git master | |
2. Download blackmagic SDK | |
3. use something like ./configure --enable-decklink --extra-cflags="-I/Users/admin/kieran_repos/ffmpeg/Mac/include" --extra-ldflags="-L/Users/admin/kieran_repos/ffmpeg/Mac/include" | |
4. This will probably fail so use Make V=1 | |
5. This will probably fail so copy paste command and remove -std=c99 as per https://ffmpeg.org/pipermail/ffmpeg-user/2014-November/024313.html | |
6. Running the gcc command resulted in failures - so I added 'static' to the three problematic lines listed in this thread http://ffmpeg.gusari.org/viewtopic.php?f=8&t=1789 | |
7. make - all seems well | |
8. ffmpeg -bm_v210 1 -f decklink -i 'UltraStudio 4K@2' -c:v ffv1 -level 3 -c:a copy -vf setfield=tff -t 3 output.mkv | |