Capturing Streaming Video - Some Important Aspects
One important component of the Webcasting process is capturing streaming video. This term capturing streaming video is also alternatively described as ripping streaming video, downloading streaming video, saving streaming video, or even sometimes as recording streaming video. Some people also describe it as recording - downloading streaming video.
Irrespective of what it is described as, the term capturing streaming video refers to the process of storage of the streaming image on permanent media in a format that is conducive to repetitive replay of the video stream.
Software is used to capture/rip/save/download/record streaming video in the form of music, news, live events, or any other such form. Such software is known as stream recorder.
Software used for capturing streaming video, generally caters to recording multi-format video and audio. Such software may be used at the site of a live event or at the user end. Popular streaming video and audio formats such as streaming Windows Media, Flash Video, Slingbox streaming video, Real Media, Quick Time Video, Nullsoft Video, Shoutcast radio (.wmv, .asf, .asx, .wma, .wvx, .wmx, .rm, .ra, .smil, .ram, .nsv, .smi, .mp3, .rmvb, and .wax) are supported by such streaming video capture software, based on the MMS, HTTP, RTSP protocols. Such software also may support downloading of streaming video and audio. It may also support screen capture. Hardware used to help capture streaming video at the site of a live event may include one or more video cameras, video lights, tripods, 5 wired lapel mikes, laptops, rack mounted color monitors, audio mixers, a DV convertor, stereo headphones, DV CAM video recorders, vision mixers, roaming microphones, and roaming microphone receiving stations. Hardware used at the users' end on computers or mobile phones includes permanent storage devices such as optical drives or magnetic storage devices, namely CDs, DVDs, hard disks, pen drives, memory cards, and magnetic tapes. It may also include USB video capture cards and/or ports such as the IEEE 1394 Firewire interface. Precise capture of streaming video at the site of a live event may require editing software. Such software may already be available on hardware devices used to record live events or it may be a separate professional level video editing package used on computers and independent of such video recording hardware. A learning curve is associated with such professional video editing software. Besides this, compression of the streaming video is required to enable the stream to be transmitted fast over the Internet. Software codecs are also required to convert a media format into another. As Webcasting is an on-demand service, capturing streaming video at the site of a live event may involve storage on CDNs or on Web servers, for split-second retrieval at the click of a mouse by a user of the feed. Hope this primer on capturing streaming video may have given you an insight on its various important aspects.
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