Apple QuickTime allows users to create, play, and stream audio and video content over the Internet. Features include playback of MPEG-4 video, AAC audio, and Instant-On media, easy-to-use controls, bass and treble controls, balance control, streaming media support, the ability to save movie favorites, as well as the ability to view VR and interactive content. The Pro version also includes an AAC encoder.
Boilsoft Video Converter for Mac converts between popular video formats, including .flv/flash, 3GP, AVI, DVD, FLV, MOV, MP4, MPEG, PSP MP4, RM, SVCD, VCD, VOB, WMV, and iPod Mp4. It lets you preview video before it gets converted, add watermarks to the video to be converted, convert a batch of videos in different or the same formats to one specified format, clip and convert a certain video segment as you like, customize output parameters, and more.
crtmpserver it is a high performance streaming server able to stream (live or recorded) in the following technologies: to and from Flash (RTMP, RTMPE, RTMPS, RTMPT, RTMPTE), to and from embedded devices (such as iPhone and Android), from surveillance cameras, and with IP-TV using MPEG-TS and RTSP/RTCP/RTP protocols. Also, crtmpserver can be used as a high performance rendesvous server. For example, it enables you to do audio/video conferencing, online gaming, online collaboration, and simple or complex chat applications.
CastCluster provides access to additional content on iTunes, Apple TV, iPod, or a random podcast viewer. It currently supports YouTube, Google Video, Revver, local disks, and RSS feeds as sources of content. It uses ffmpeg for video conversion. It also provides some other bookmarklet functionality, like digg and del.icio.us.