libebml produces wrong output when using -O2 or -O3... those flags should be filtered
Which version(s)? Some better description of what is "wrong output"? Also, emerge --info please.
The produced .mkv files are almost unplayable (with mkvtoolnix) ... i asked in #matroska at irc.corecodec.org .. they said there is a known problem with libebml producing b0rked output with more than -O1 ... recompiling libebml with empty CFLAGS solved the problem ... i only tried with libebml-0.7.6 ... emerge --info (doesn't matter with this bug...) Portage 2.1_pre3-r1 (default-linux/x86/2005.1, gcc-4.0.2, glibc-2.3.6-r2, 2.6.15 i686) ================================================================= System uname: 2.6.15 i686 Intel(R) Pentium(R) M processor 1.60GHz Gentoo Base System version 1.12.0_pre13 dev-lang/python: 2.3.5-r2, 2.4.2 sys-apps/sandbox: 1.2.17 sys-devel/autoconf: 2.13, 2.59-r7 sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r1 sys-devel/binutils: 2.16.1-r1 sys-devel/libtool: 1.5.22 virtual/os-headers: 2.6.11-r3 ACCEPT_KEYWORDS="x86 ~x86" AUTOCLEAN="yes" CBUILD="i686-pc-linux-gnu" CFLAGS="-O3 -march=pentium-m -mtune=pentium-m -fomit-frame-pointer -pipe" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3/share/config /usr/lib/mozilla/defaults/pref /usr/share/X11/xkb /usr/share/config /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/texmf/web2c /etc/env.d" CXXFLAGS="-O3 -march=pentium-m -mtune=pentium-m -fomit-frame-pointer -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig distlocks sandbox sfperms strict" GENTOO_MIRRORS="ftp://sunsite.informatik.rwth-aachen.de/pub/Linux/gentoo/ ftp://ftp.gentoo.mesh-solutions.com/gentoo/" LANG="de_DE.UTF-8" LINGUAS="de en zh_CN" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/media/External/tmp/" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="x86 X a52 aac acl acpi alsa apache2 audiofile avi berkdb bitmap-fonts bzip2 cairo cdr cjk crypt cups curl dbus dri dts dvd dvdr eds emboss encode exif expat faac faad fam flac foomaticdb fortran fuse gd gdbm gif glitz glut glx gmp gnome gphoto2 gpm gstreamer gtk gtk2 gtkhtml guile hal idn imap imlib iproute2 ipv6 java jpeg lcms libg++ libwww mad matroska mikmod mime mmx mng mono mozilla mp3 mpeg nautilus ncurses nls nptl nptlonly offensive ogg oggvorbis openal opengl pam pcre pda pdflib perl png python quicktime readline recode samba sdl speex spell sse sse2 ssl svg tcpd tetex theora tiff truetype truetype-fonts type1-fonts udev unicode usb vorbis win32codecs xine xinerama xml2 xprint xv xvid zlib elibc_glibc kernel_linux linguas_de linguas_en linguas_zh_CN userland_GNU" Unset: ASFLAGS, CTARGET, LC_ALL, LDFLAGS, MAKEOPTS
regarding "wrong output" "timecodescale" is wrong and some other parameters ... effect: the file can only be "streamed" in totem (no seeking) mplayer shows a full playtime of 0:00:000
Can't reproduce here. Which engine is totem using?
To reproduce first emerge libebml with -O3 then merge a stream with mkvtoolnix. The resulting file has wrong information (like duration etc...), check it with mkvinfo (look for duration). You will see something like this: + EBML head |+ Doc type: matroska |+ Doc type version: 1 |+ Doc type read version: 1 + Segment, size 510989 |+ Seek head (subentries will be skipped) |+ EbmlVoid (size: 4029) |+ Segment information | + Timecode scale: 1000000 | + Muxing application: libebml v0.7.6 + libmatroska v0.8.0 | + Writing application: mkvmerge v1.6.5 ('Watcher Of The Skies') built on Jan 13 2006 19:56:06 | + Duration: -0.000s (00:00:00.-00000028) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Now with libebml compiled with -O1 and muxing the same file (.avi source) you get: + EBML head |+ Doc type: matroska |+ Doc type version: 1 |+ Doc type read version: 1 + Segment, size 510989 |+ Seek head (subentries will be skipped) |+ EbmlVoid (size: 4029) |+ Segment information | + Timecode scale: 1000000 | + Muxing application: libebml v0.7.6 + libmatroska v0.8.0 | + Writing application: mkvmerge v1.6.5 ('Watcher Of The Skies') built on Jan 13 2006 19:56:06 | + Duration: 20.000s (00:00:20.000000000) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ That is the correct duration (20 sec). The problem with libebml and using -O2 or -O3 was confirmed in #matroska on freenode.
#matroska not on freenode, but on irc.corecodec.org like i said in comment #2
Okay, replaced the flags -O2 and -O3 to -O1, without revbump tho.
