https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85132
--- Comment #5 from Martin Liška <marxin at gcc dot gnu.org> --- (In reply to Manuel Lauss from comment #4) > (In reply to Martin Liška from comment #3) > > (In reply to Manuel Lauss from comment #2) > > > This is the most minimal ffmpeg config that can trigger the segfault. The > > > interesting switch is "--enabled-hardcoded-tables". I use the "mpv" > > > Player > > > with a standard mp4 video file to trigger it > > > (https://github.com/mpv-player/mpv/archive/v0.27.2.zip) > > > > Good. so we have minimal set of options for ffmpeg. Now please explain me > > how to build the MPV tool? Is it really needed? Can't one trigger that > > directly with ffmepg? Please upload somewhere the mp4 file so that I can > > reproduce it. > > The segfault happens during initialization of ffmpeg when mpv player starts. > I can also trigger it with firefox on e.g. youtube: it crashes the tab. Ok, so please download following sample video: http://techslides.com/demos/sample-videos/small.mp4 And try to run ffmpeg to print info: ./ffmpeg -i small.mp4 Does it also segfault? > > > ad mpv: unpack, configure with the following line (you need python3): > CCFLAGS="-O3 -march=znver1 -mtune=znver1 -flto=16 -fno-fat-lto-objects > -pipe" LINKFLAGS="-O3 -march=znver1 -mtune=znver1 -flto=16 > -fno-fat-lto-objects -pipe -Wl,--no-as-needed" ./waf --prefix=/usr > --libdir=/usr/lib64 --confdir=/etc/mpv --docdir=/usr/share/doc/mpv-0.27.2 > --htmldir=/usr/share/doc/mpv-0.27.2/html --enable-libmpv-shared > --disable-libmpv-static --disable-static-build --disable-optimize > --disable-debug-build --enable-html-build --disable-pdf-build > --enable-cplugins --disable-zsh-comp --disable-test --disable-android > --enable-iconv --disable-libsmbclient --enable-lua --lua=luajit > --disable-javascript --enable-x11 --disable-build-date configure > > ./waf build How the player knows where to find the built ffmpeg libraries?
