A Practical Guide to Video and Audio Compression: From by Cliff Wootton PDF

By Cliff Wootton

ISBN-10: 0240806301

ISBN-13: 9780240806303

Study all approximately Codecs--how they paintings, in addition to layout and implementation with this accomplished, easy-to-use advisor to compression. After analyzing this ebook, it is possible for you to to arrange and distribute expert audio and video on any platform together with streamed to the net, broadcast on-air, kept in PVRs, Burned onto CD-ROMs or DVDs, added through broadband, or seen in Kiosk purposes, PDA units, and cellphones.

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Presenting users with an experience that feels like talking to a machine would be counterproductive. Automated answering systems already bother some users due to the sterile nature of the interchange. An avatar-based help system might fare no better and present an unsatisfying experience unless it is backed up by well-designed artificial intelligence. 10 Entertainment Online gaming and betting could be categorized as entertainment. Uses of video compression with other forms of entertainment are also possible.

Fully exploiting the capabilities of the MPEG-4 Why Video Compression Is Needed 21 standard will allow you to create non-rectangular, alpha-blended areas of moving video. You could map that video onto a 3D mesh that represents some terrain or even a face. The MPEG-4 standard also provides scene construction mechanisms so that video assets can be projected into a 3D environment at the player. This allows the user to control the point of view. It also reduces the bit rate required for delivery, because only the flat, 2D versions of the content need to be delivered as component objects.

2 Back in the Old Days Film stock and camera manufacturers have made some significant improvements in what can be accomplished with movie film. The most problematic aspect of film is that because a chemical reaction imprinted the images, the film ages; that is, the images will degrade with time. They will lose contrast and the color will shift because each emulsion on the film substrate ages differently. This applies equally to films made by Hollywood movie companies and to those home movies shot in the 1950s and `60s on 8 mm film.

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A Practical Guide to Video and Audio Compression: From Sprockets and Rasters to Macro Blocks by Cliff Wootton

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