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 2014-03-24发布2.2正式版.新的产品系列。之前产品线为2.1.4,1.2.6.FFmpeg在视频网站应该是必用的转码工具。 新特性： - HNM version 4 demuxer and video decoder - Live HDS muxer - setsar/setdar filters now support variables in ratio expressions - elbg filter - string validation in ffprobe - support for decoding through VDPAU in ffmpeg (the -hwaccel option) - complete Voxware MetaSound decoder - remove mp3_header_compress bitstream filter - Windows resource files for shared libraries - aeval filter - stereoscopic 3d metadata handling - WebP encoding via libwebp - ATRAC3+ decoder - VP8 in Ogg demuxing - side & metadata support in NUT - framepack filter - XYZ12 rawvideo support in NUT - Exif metadata support in WebP decoder - OpenGL device - Use metadata_header_padding to control padding in ID3 tags (currently used in MP3, AIFF, and OMA files), FLAC header, and the AVI "junk" block. - Mirillis FIC video decoder - Support DNx444 - libx265 encoder - dejudder filter - Autodetect VDA like all other hardware accelerations 下载：http://ffmpeg.org/releases/ffmpeg-2.2.tar.bz2 |
