Read the licenses and the ffmpeg legal page.
On 4/6/2022 6:04 PM, Bo Zhou wrote:
Since FFmpeg is a complicated software it has some modules under GPL, so
it's best for you or the manager of your company to consult with the FFmpeg
team for a proper legal authorization.
That legal authorization comes from the GPL and LGPL. If you have not
actually read them, or even the FAQs, do that right now. (For "combined
works" incorporating a LGPL library, see section 4 in
https://www.gnu.org/licenses/lgpl-3.0.en.html.)
In the case of ffmpeg, generally _if_ you wish to distribute the parts that
are GPL-licensed, they your work needs to be too, but you can build both the
application programs and the libraries to exclude those parts (the configure
option --disable-gpl).
Read the licenses and the ffmpeg legal page.
Decide what parts of ffmpeg you want to include and see how those parts are
licensed- that will be in the source modules (e.g in
libavfilter/vf_drawtext.c), or in the configure script you can look for the
"gpl" dependency (e.g. 'boxblur_opencl_filter_deps="opencl gpl"').
z!
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