Bug#923494: Please Recommend and dlopen libsdl2 rather than depending on it

On Sun, Mar 10, 2019 at 9:36 PM Carl Eugen Hoyos <ceffmpeg@gmail.com> wrote:

> What might work is disabling the avdevice outdev AND
> moving 'ffplay' to its own binary package.

Before suggesting this, I would prefer the OP to test. I
still do not entirely believe that this fixes his issue.

There is a good chance that the OP did not get this message, because debbugs does not automatically subscribe the original submitter. One has to exlicitly use the NNNNNN-submitter@bugs.debian.org alias or include his email address explicitly.

I've went ahead and implemented the change (passing in --disable-outdev=sdl2 as you suggested, and moving ffplay into its own binary package)

With this patch, the ffmpeg binary package has a depends line like this:                                                                                                                                           

Package: ffmpeg Version: 7:4.1.1-2 Architecture: amd64 Maintainer: Debian Multimedia Maintainers <debian-multimedia@lists.debian.org> Installed-Size: 1808 Depends: libavcodec58 (= 7:4.1.1-2), libavdevice58 (= 7:4.1.1-2), libavfilter7 (= 7:4.1.1-2), libavformat58 (= 7:4.1.1-2), libavresample4 (= 7:4.1.1-2), libavutil56 (= 7:4.1.1-2), libc6 (>= 2.14), libpostproc55 (= 7:4.1.1-2), libswresample3 (= 7:4.1.1-2), libswscale5 (= 7:4.1.1-2)
Suggests: ffmpeg-doc Breaks: libav-tools (<< 6:12~~), qt-faststart (<< 7:2.7.1-3~), winff (<< 1.5.5-5~) Replaces: libav-tools (<< 6:12~~), qt-faststart (<< 7:2.7.1-3~) Section: video

Note that there is a dependency on libavdevice58, but not on SDL.

The 'ffplay' binary package has a depends line that looks like this:

Package: ffplay
Source: ffmpeg
Version: 7:4.1.1-2
Architecture: amd64
Maintainer: Debian Multimedia Maintainers <debian-multimedia@lists.debian.org>
Installed-Size: 226 Depends: libavcodec58 (= 7:4.1.1-2), libavdevice58 (= 7:4.1.1-2), libavfilter7 (= 7:4.1.1-2), libavformat58 (= 7:4.1.1-2), libavresample4 (= 7:4.1.1-2), libavutil56 (= 7:4.1.1-2), libc6 (>= 2.14), libpostproc55 (= 7:4.1.1-2), libsdl2-2.0-0 (>= 2.0.9), libswresample3 (= 7:4.1.1-2), libswscale5 (= 7:4.1.1-2), ffmpeg
Suggests: ffmpeg-doc Breaks: ffmpeg (<< 7:4.1.1-2~), libav-tools (<< 6:12~~), qt-faststart (<< 7:2.7.1-3~), winff (<< 1.5.5-5~) Replaces: ffmpeg (<< 7:4.1.1-2~), libav-tools (<< 6:12~~), qt-faststart (<< 7:2.7.1-3~) Section: video

Note that this includes both libavdevice58 as well as libsdl2-2.

I think this should address the issue. Any objections to this approach?

regards,
Reinhard