Revision c0b1bc8d
CREDITS | ||
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This file contains the names of some of the people who have contributed to |
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Libav/FFmpeg. The names are sorted alphabetically by last name. As this file is
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FFmpeg. The names are sorted alphabetically by last name. As this file is |
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currently quite outdated and git serves as a much better tool for determining |
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authorship, it remains here for historical reasons only. |
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Doxyfile | ||
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# The PROJECT_NAME tag is a single word (or a sequence of words surrounded |
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# by quotes) that should identify the project. |
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PROJECT_NAME = Libav
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PROJECT_NAME = FFmpeg
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# The PROJECT_NUMBER tag can be used to enter a project or revision number. |
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# This could be handy for archiving the generated documentation or |
INSTALL | ||
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1) Type './configure' to create the configuration. A list of configure |
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options is printed by running 'configure --help'. |
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'configure' can be launched from a directory different from the Libav
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'configure' can be launched from a directory different from the FFmpeg
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sources to build the objects out of tree. To do this, use an absolute |
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path when launching 'configure', e.g. '/libavdir/libav/configure'.
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path when launching 'configure', e.g. '/ffmpegdir/ffmpeg/configure'.
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2) Then type 'make' to build Libav. GNU Make 3.81 or later is required.
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2) Then type 'make' to build FFmpeg. GNU Make 3.81 or later is required.
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3) Type 'make install' to install all binaries and libraries you built. |
LICENSE | ||
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Libav:
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FFmpeg:
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------- |
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Most files in Libav are under the GNU Lesser General Public License version 2.1
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Most files in FFmpeg are under the GNU Lesser General Public License version 2.1
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or later (LGPL v2.1+). Read the file COPYING.LGPLv2.1 for details. Some other |
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files have MIT/X11/BSD-style licenses. In combination the LGPL v2.1+ applies to |
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Libav.
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FFmpeg.
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Some optional parts of Libav are licensed under the GNU General Public License
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Some optional parts of FFmpeg are licensed under the GNU General Public License
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version 2 or later (GPL v2+). See the file COPYING.GPLv2 for details. None of |
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these parts are used by default, you have to explicitly pass --enable-gpl to |
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configure to activate them. In this case, Libav's license changes to GPL v2+.
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configure to activate them. In this case, FFmpeg's license changes to GPL v2+.
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Specifically, the GPL parts of Libav are
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Specifically, the GPL parts of FFmpeg are
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- libpostproc |
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- optional x86 optimizations in the files |
... | ... | |
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------------------- |
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Some external libraries, e.g. libx264, are under GPL and can be used in |
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conjunction with Libav. They require --enable-gpl to be passed to configure
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conjunction with FFmpeg. They require --enable-gpl to be passed to configure
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as well. |
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The OpenCORE external libraries are under the Apache License 2.0. That license |
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is incompatible with the LGPL v2.1 and the GPL v2, but not with version 3 of |
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those licenses. So to combine the OpenCORE libraries with Libav, the license
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those licenses. So to combine the OpenCORE libraries with FFmpeg, the license
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version needs to be upgraded by passing --enable-version3 to configure. |
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The nonfree external library libfaac can be hooked up in Libav. You need to
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The nonfree external library libfaac can be hooked up in FFmpeg. You need to
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pass --enable-nonfree to configure to enable it. Employ this option with care |
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as Libav then becomes nonfree and unredistributable. |
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as FFmpeg then becomes nonfree and unredistributable. |
README | ||
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1 |
Libav README
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FFmpeg README
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------------- |
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1) Documentation |
configure | ||
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1 | 1 |
#!/bin/sh |
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# |
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# Libav configure script
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# FFmpeg configure script
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# |
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# Copyright (c) 2000-2002 Fabrice Bellard |
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# Copyright (c) 2005-2008 Diego Biurrun |
... | ... | |
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echo "No compatible shell script interpreter found." |
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echo "This configure script requires a POSIX-compatible shell" |
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echo "such as bash or ksh." |
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echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
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echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
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echo "Instead, install a working POSIX-compatible shell." |
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echo "Disabling this configure test will create a broken Libav."
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echo "Disabling this configure test will create a broken FFmpeg."
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if test "$BASH_VERSION" = '2.04.0(1)-release'; then |
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echo "This bash version ($BASH_VERSION) is broken on your platform." |
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echo "Upgrade to a later version if available." |
... | ... | |
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--enable-sram allow use of on-chip SRAM |
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--disable-symver disable symbol versioning |
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Developer options (useful when working on Libav itself):
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Developer options (useful when working on FFmpeg itself):
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--disable-debug disable debugging symbols |
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--enable-debug=LEVEL set the debug level [$debuglevel] |
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--disable-optimizations disable compiler optimizations |
... | ... | |
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If you think configure made a mistake, make sure you are using the latest |
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version from Git. If the latest version fails, report the problem to the |
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libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
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ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
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EOF |
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if disabled logging; then |
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cat <<EOF |
... | ... | |
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openbsd) |
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enable malloc_aligned |
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# On OpenBSD 4.5. the compiler does not use PIC unless |
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# explicitly using -fPIC. Libav builds fine without PIC,
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# explicitly using -fPIC. FFmpeg builds fine without PIC,
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# however the generated executable will not do anything |
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# (simply quits with exit-code 1, no crash, no output). |
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# Thus explicitly enable PIC here. |
... | ... | |
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EOF |
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} |
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pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" |
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pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" |
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pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION" |
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pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION" |
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pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" |
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pkgconfig_generate libpostproc "Libav post processing library" "$LIBPOSTPROC_VERSION" |
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pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION" |
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pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" |
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pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" |
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pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION" |
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pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION" |
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pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" |
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pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION" |
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pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION" |
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