gst-plugins-libav-1.14.4.4.1_p20181115 cannot correctly play cinepak encoded video anymore. The video just flashes by, as if it was playing at 1000FPS or so. Test file: http://83.212.107.13/~realnc/tmp/fbtitle.avi This affects applications using gstreamer. You can test this using the gst-play-1.0 test utility (installed by media-libs/gst-plugins-base): $ gst-play-1.0 fbtitle.avi This video is 8 seconds long, yet it's played in a fraction of a second with 1.14.4.4.1_p20181115. Enabling the "libav" USE flag of gst-plugins-base to use a bundled version of ffmpeg does not help. Downgrading to 1.14.4.3.4.5 (or any earlier version) and enabling the "libav" USE flag does fix the issue.
$ emerge --info media-plugins/gst-plugins-libav Portage 2.3.52 (python 3.6.6-final-0, default/linux/amd64/17.0/desktop/plasma/systemd, gcc-8.2.0, glibc-2.28-r4, 4.19.12-gentoo x86_64) ================================================================= System Settings ================================================================= System uname: Linux-4.19.12-gentoo-x86_64-Intel-R-_Core-TM-_i5-2500K_CPU_@_3.30GHz-with-gentoo-2.6 KiB Mem: 16394324 total, 12918928 free KiB Swap: 4194300 total, 4194300 free Timestamp of repository gentoo: Sun, 23 Dec 2018 14:24:15 +0000 Head commit of repository gentoo: c7e61e078ea7d95babf5cfe2dac18a4dd970bf78 Head commit of repository flatpak-overlay: aa2e187b97bb33ff8839e5abc2636af1e1db9a6f sh bash 4.4_p23 ld GNU ld (Gentoo 2.31.1 p5) 2.31.1 app-shells/bash: 4.4_p23::gentoo dev-lang/perl: 5.26.2::gentoo dev-lang/python: 2.7.15::gentoo, 3.6.6::gentoo dev-util/cmake: 3.13.2::gentoo dev-util/pkgconfig: 0.29.2::gentoo sys-apps/baselayout: 2.6-r1::gentoo sys-apps/sandbox: 2.14::gentoo sys-devel/autoconf: 2.13-r1::gentoo, 2.69-r4::gentoo sys-devel/automake: 1.16.1-r1::gentoo sys-devel/binutils: 2.31.1-r3::gentoo sys-devel/gcc: 8.2.0-r5::gentoo sys-devel/gcc-config: 2.0::gentoo sys-devel/libtool: 2.4.6-r5::gentoo sys-devel/make: 4.2.1-r4::gentoo sys-kernel/linux-headers: 4.19::gentoo (virtual/os-headers) sys-libs/glibc: 2.28-r4::gentoo Repositories: gentoo location: /mnt/Data/portage sync-type: git sync-uri: git://anongit.gentoo.org/repo/sync/gentoo.git priority: -1000 abendbrot location: /var/lib/layman/abendbrot masters: gentoo priority: 50 flatpak-overlay location: /usr/local/flatpak-overlay sync-type: git sync-uri: https://github.com/fosero/flatpak-overlay.git masters: gentoo priority: 50 interactive-fiction location: /var/lib/layman/interactive-fiction masters: gentoo priority: 50 seden location: /var/lib/layman/seden masters: gentoo priority: 50 steam-overlay location: /var/lib/layman/steam-overlay masters: gentoo priority: 50 vapoursynth location: /var/lib/layman/vapoursynth masters: gentoo priority: 50 vmware location: /var/lib/layman/vmware masters: gentoo priority: 50 local location: /usr/local/portage masters: gentoo priority: 9999999 ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="*" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-pipe -O2 -mtune=native -march=native -ftree-vectorize" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/share/config /usr/share/gnupg/qualified.txt" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c /etc/vmware-installer" CXXFLAGS="-pipe -O2 -mtune=native -march=native -ftree-vectorize" DISTDIR="/mnt/Data/portage/distfiles" EMERGE_DEFAULT_OPTS="--backtrack=200" ENV_UNSET="DBUS_SESSION_BUS_ADDRESS DISPLAY GOBIN PERL5LIB PERL5OPT PERLPREFIX PERL_CORE PERL_MB_OPT PERL_MM_OPT XAUTHORITY XDG_CACHE_HOME XDG_CONFIG_HOME XDG_DATA_HOME XDG_RUNTIME_DIR" FCFLAGS="-pipe -O2 -mtune=native -march=native -ftree-vectorize" FEATURES="assume-digests binpkg-docompress binpkg-dostrip binpkg-logs config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync multilib-strict news parallel-fetch preserve-libs protect-owned sandbox sfperms sign strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr" FFLAGS="-pipe -O2 -mtune=native -march=native -ftree-vectorize" GENTOO_MIRRORS="http://ftp.ntua.gr/pub/linux/gentoo http://mirror.ovh.net/gentoo-distfiles http://distfiles.gentoo.org" LANG="en_US.UTF-8" LDFLAGS="-Wl,-O1 -Wl,--as-needed -Wl,--hash-style=gnu -Wl,--sort-common" LINGUAS="en_US en" MAKEOPTS="-j4" PKGDIR="/mnt/Data/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages --exclude=/.git" PORTAGE_TMPDIR="/var/tmp" USE="X a52 aac accessibility acl acpi activities amd64 berkdb bzip2 cairo cli crypt cxx dbus declarative dri dts dvd dvdr emboss encode exif fam flac fortran gdbm gif glamor gpm gtk iconv ipv6 jpeg kde kipi kwallet lcms libnotify libtirpc linguas_en linguas_en_US lto mad mng mp3 mp4 mpeg multilib ncurses nptl nvidia offensive ogg opengl openmp pam pango pcre pdf pgo phonon plasma png policykit ppds pulseaudio qml qt5 readline seccomp spell ssl startup-notification svg systemd tcpd tiff truetype udev udisks unicode upower usb vdpau vorbis vulkan wayland widgets wxwidgets xattr xcb xcomposite xml xv xvid zlib" ABI_X86="64 32" APACHE2_MODULES="authn_core authz_core socache_shmcb unixd actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" CALLIGRA_FEATURES="karbon plan sheets stage words" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="aes avx mmx mmxext pclmul popcnt sse sse2 sse3 sse4_1 sse4_2 ssse3" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock isync itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf skytraq superstar2 timing tsip tripmate tnt ublox ubx" GRUB_PLATFORMS="efi-64" INPUT_DEVICES="libinput keyboard mouse" KERNEL="linux" L10N="en-US en" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-6 php7-1" POSTGRES_TARGETS="postgres9_5 postgres10" PYTHON_SINGLE_TARGET="python3_6" PYTHON_TARGETS="python2_7 python3_6" RUBY_TARGETS="ruby25" USERLAND="GNU" VIDEO_CARDS="nvidia" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account" Unset: CC, CPPFLAGS, CTARGET, CXX, INSTALL_MASK, LC_ALL, PORTAGE_BINHOST, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS ================================================================= Package Settings ================================================================= media-plugins/gst-plugins-libav-1.14.4.4.1_p20181115::local was built with the following: USE="orc -libav" ABI_X86="32 (64) (-x32)"
Oops, I used the emerge --info of my local copy of the ebuild, which says "::local". In this instance, it's the same as ::gentoo. I was doing some tests on the ebuild to see if maybe one of the patches is causing the issue. The issue is the same with: ================================================================= Package Settings ================================================================= media-plugins/gst-plugins-libav-1.14.4.4.1_p20181115::gentoo was built with the following: USE="orc -libav" ABI_X86="32 (64) (-x32)"