FFmpeg 2.4 "Fresnel" 发布，此版本现已提供下载，此版本包含的库版本：
• libavutil 54.7.100
• libavcodec 56.1.100
• libavformat 56.4.101
• libavdevice 56.0.100
• libavfilter 5.1.100
• libswscale 3.0.100
• libswresample 1.1.100
• libpostproc 53.0.100
重要的 API 改进：
• The new field mime_type was added to AVProbeData, which can cause crashes, if it is not initialized.
• Some deprecated functions were removed.
• The avfilter_graph_parse function was made compatible with Libav.
• The Matroska demuxer now outputs verbatim ASS packets.
新特性： libavformat： • Icecast protocol.
• API for live metadata updates through event flags.
• UTF-16 support in text subtitles formats.
• The ASS muxer now reorders the Dialogue events properly.
libavfilter： • Ported lenscorrection filter from frei0r filter.
• Large optimizations in dctdnoiz to make it usable.
• Added codecview filter to visualize information exported by some codecs.
• Added silenceremove filter.
libavutil： • Added clip() function in eval.
Behaviour 改进： • dctdnoiz filter now uses a block size of 8x8 instead of 16x16 by default
• -vismv option is deprecated in favor of the codecview filter
• libmodplug is now detected through pkg-config
• HTML documentation generation through texi2html is deprecated in favor of makeinfo/texi2any
• ICY metadata are now requested by default with the HTTP protocol
建议所有用户，相关开发者和系统集成的尽快升级到最新版本。 FFmpeg是一套可以用来记录、转换数字音频、视频，并能将其转化为流的开源计算机程序。它包括了目前领先的音/视频编码库libavcodec。
FFmpeg是在Linux下开发出来的，但它可以在包括Windows在内的大多数操作系统中编译。这个项目是由Fabrice
Bellard发起的，现在由Michael
Niedermayer主持。可以轻易地实现多种视频格式之间的相互转换，例如可以将摄录下的视频avi等转成现在视频网站所采用的flv格式。 | 
