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。 视频转码工具FFmpeg 2014-07-15发布2.3正式版.新的产品系列。之前产品线为2.2.5 2.1.4,1.2.6.上个产品系列是2014-03-24的2.2 FFmpeg在视频网站应该是必用的转码工具。 完全改进： version 2.3: - AC3 fixed-point decoding - shuffleplanes filter - subfile protocol - Phantom Cine demuxer - replaygain data export - VP7 video decoder - Alias PIX image encoder and decoder - Improvements to the BRender PIX image decoder - Improvements to the XBM decoder - QTKit input device - improvements to OpenEXR image decoder - support decoding 16-bit RLE SGI images - GDI screen grabbing for Windows - alternative rendition support for HTTP Live Streaming - AVFoundation input device - Direct Stream Digital (DSD) decoder - Magic Lantern Video (MLV) demuxer - On2 AVC (Audio for Video) decoder - support for decoding through DXVA2 in ffmpeg - libbs2b-based stereo-to-binaural audio filter - libx264 reference frames count limiting depending on level - native Opus decoder - display matrix export and rotation api - WebVTT encoder - showcqt multimedia filter - zoompan filter - signalstats filter - hqx filter (hq2x, hq3x, hq4x) - flanger filter - Image format auto-detection - LRC demuxer and muxer - Samba protocol (via libsmbclient) - WebM DASH Manifest muxer - libfribidi support in drawtext 下载：http://ffmpeg.org/releases/ffmpeg-2.3.tar.bz2 |
