Robię skrypt typu youtube, wszystkie pliki wideo konwertuje do formatu .mp4, jednak aby zachować dobrą jakość muszę użyć libx264:
Kod: Zaznacz cały
ffmpeg -i test.flv -vcodec libx264 new.mp4Kod: Zaznacz cały
Input #0, flv, from 'test.flv': Duration: 00:00:17.00, start: 0.000000, bitrate: 679 kb/s
Stream #0.0: Video: h264, yuv420p, 480x360 [PAR 1:1 DAR 4:3], 679 kb/s, 29.97 tbr, 1k tbn, 60 tbc
Stream #0.1: Audio: aac, 44100 Hz, stereo, s16
Unknown encoder 'libx264'
Pakietu libx264 oraz x264 nie odnajduję.
Dopiero gdy dodam do pliku /etc/apt/sources.list
Kod: Zaznacz cały
deb http://ftp.pl.debian.org/debian/ sid main non-free contrib
deb-src http://ftp.pl.debian.org/debian/ sid main non-free contrib
Po wpisaniu:
Kod: Zaznacz cały
apt-get install x264Kod: Zaznacz cały
Kontynuować [T/n]? T
Odczytywanie dzienników zmian... Zrobione
eglibc (2.13-25) unstable; urgency=medium
Starting with the eglibc package version 2.13-5, the libraries are
shipped in the multiarch directory /lib/<triplet> instead of the more
traditional /lib, where <triplet> is the multiarch triplet and can be
retrieved with 'dpkg-architecture -qDEB_HOST_MULTIARCH'. Similarly the
includes are now shipped in /usr/include/<triplet> instead of the more
traditional /usr/include.
The toolchain in Debian has been updated to cope with that, and most
build systems should be unaffected. If you are using a non-Debian
toolchain to build your software and it is not able to cope with
multiarch, you might try to pass the following options to your
compiler:
-B/usr/lib/<triplet> -I/usr/include/<triplet>
Alternatively if the build system makes hard to pass the above options,
you might try to set the LIBRARY_PATH and CPATH environment variables:
LIBRARY_PATH=/usr/lib/<triplet>
CPATH=/usr/include/<triplet>
export LIBRARY_PATH CPATH
-- Aurelien Jarno <aurel32@debian.org> Mon, 09 Jan 2012 12:47:16 +0100
eglibc (2.13-7) unstable; urgency=low
Starting with version 2.13, eglibc provides an SSSE3 optimized version
of memcpy() on the amd64 architecture. This version might copy memory
backward in some conditions, which causes issues if the source and
destination overlap. memmove() should be used in such cases, but some
programs still wrongly use memcpy().
For this reason, on the amd64 architecture the Debian package provides
two wrappers which can be use to workaround and/or debug the issue:
- /usr/lib/x86_64-linux-gnu/libc/memcpy-preload.so simply replace all
calls to memcpy() by a call to memmove()
- /usr/lib/x86_64-linux-gnu/libc/memcpy-syslog-preload.so does the same,
but in addition logs (with rate limit) the issue to syslog, so that it
can be detected and fixed.
To use these wrapper on a single binary, the easiest way is to use the
LD_PRELOAD environment variable:
- LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libc/memcpy-preload.so /path/to/binary
- LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libc/memcpy-syslog-preload.so /path/to/binary
For system-wide usage, it is possible to add the path of one of the
wrapper to /etc/ld.so.preload.
For more details about the issue, please see:
http://bugs.debian.org/625521
http://sourceware.org/bugzilla/show_bug.cgi?id=12518
-- Aurelien Jarno <aurel32@debian.org> Sat, 11 Jun 2011 18:02:52 +0200
cmake (2.8.7-4) unstable; urgency=low
From now on, pass either -DPythonInterp_FIND_VERSION=<version> or
-DPythonLibs_FIND_VERSION=<version> respectively in order to tell cmake to
look for the specific Python version. However, if an explicit Python version
is requested via find_package(), it will override the one specified on the
command line.
/tmp/tmpuXbSUb
Starałem się również zainstalować ffmpeg według tego poradnika:
http://www.zoharbabin.com/build-and-ins ... dumb-guide
Jednak po wpisaniu:
Kod: Zaznacz cały
./configure --enable-shared
Found yasm 0.8.0.2194
Minimum version is yasm-1.2.0
If you really want to compile without asm, configure with --disable-asm.
Kod: Zaznacz cały
apt-get install yasmKod: Zaznacz cały
Czytanie list pakietów... Gotowe
Budowanie drzewa zależności
Odczyt informacji o stanie... Gotowe
yasm jest już w najnowszej wersji.
