检测视频编码信息,MediaInfo 用来分析视频和音频文件的编码和内容信息。目前几个主流的CODEC viewer的功能都给包进来了.像是对新格式的支持, 提供相关CODECs和播放软件的网页连结等等, 我觉得该有的功能都有了。

MediaInfo的主要功能特点：

支持众多视频和音频文件格式
多种查看方式：文本，表格，树形图，网页……
自定义查看方式
信息导出：文本，CSV，HTML……
三种发布版本：图形界面，命令行，DLL(动态链接库)
与Windows资源管理器整合：拖放，右键菜单
国际化：有多种界面语言供选择
(软件界面)轻松实现本地化 (需要志愿者翻译语言文件)


使用MediaInfo可以获得多媒体文件的哪些信息?
内容信息：标题，作者，专辑名，音轨号，日期，总时间……
视频：编码器，长宽比，帧频率，比特率……
音频：编码器，采样率，声道数，语言，比特率……
文本：语言和字幕
段落：段落数，列表

MediaInfo支持哪些文件格式?

视频：MKV, OGM, AVI, DivX, WMV, QuickTime, Real, MPEG-1, MPEG-2, MPEG-4, DVD (VOB)...
(编码器：DivX, XviD, MSMPEG4, ASP, H.264, AVC...)
音频：OGG, MP3, WAV, RA, AC3, DTS, AAC, M4A, AU, AIFF...
字幕：SRT, SSA, ASS, SAMI...

更新日志：

Version 0.7.52, 2011-12-19
--------------
+ Georgian translation
+ MXF with referenced files: if the referenced file is not available, trying to open local files
+ MPEG Video: GOP size for I-Frame only streams
+ MXF: support of CEA-608 in ancillary data for some other formats than MPEG Video, if there is no B-frame
+ LXF: support of SMPTE ST291/CDP/CEA-608/CEA-708 in ancillary data
+ WAV: better handling of files not having word alignment
x DV: crash (division by zero) in some cases
x DV: DVCPRO HD was sometimes not detected (low bitrate)
x MXF: Crash if AFD field has an invalid value
x MXF: Wrong endianess for some big endian PCM streams
x MXF: some MXF referencing files have wrong duration
x MXF: duration was wrong with some specific files
x DVD-Video: detection of 20-bit and 24-bit PCM
x XML output: it was sometimes containing some invalid characters
x MPEG-4: considering default char set as ISO-8859-1
x MXF: better handling of referencing files having the same ID for all tracks
x MXF: Handling of MXF files with wrong FooterPartition field
x MXF: Some captions (not starting at the beginning of the file) were not detected
x WAV: duration was missing is some cases
x RMP3 support was broken


Version 0.7.50, 2011-09-23
--------------
+ Ukrainian translation updated
+ DVB Subtitle: region_width / region_height / region_depth (hidden by default)
+ MPEG-4: hdv6 and mx4p CodecID support (MPEG Video)
+ AVI: v210 CodecID (YUV) detect
+ #3411596, CDDA support, thanks to Lionel Duchateau
+ MXF: support of AC-3
+ #3411999, AVi: detection of GeoVision MPEG-4, thanks to Lionel Duchateau
+ #3411999, MPEG-4: detection of VC-1 (WMV3), Nellymoser and WMA2, thanks to Lionel Duchateau
x AVI: Better support of 2 video streams (e.g. "3D AVI") in a file
x MPEG-TS: Duration was not provided in some cases
x FLV: Delay and duration for AAC was wrong if delay was not 0, thanks to Justin Greer http://zencoder.com
x #3408005, IFO: crash with some files
x MPEG-4: some bitrates where wrong if smooth streaming is used