Wednesday, February 9, 2011
Smart Transcoding Provides Controllable Video Quality Levels and Security Services from Many Sources to Many Types of Devices
The need for products to include converters (transcoders) is increasing as new products and services use a wide mixture of content formats. Sally Daub and Cedric Caron from VIXS explained to me at the CES show that transcoding devices need to combine transcoding, transcription, transformating, and transrating in ways that ensure the devices provide video and audio quality levels while maintaining the underlying security processes. A key requirement for transcoding can be to control the video quality of service (VQoS) thorugh bit rate adjustment that is smart so it does not exceed available bandwidth. A key feature may include a fit-to-disk capability that can adjust the conversion rate so the content can fit within a defined amount of storage area. There are multiple types of conditional access (CA) and digital rights management (DRM) systems used in systems and devices. These need to be adapted (transcrypted) to enable the security processes to operate and transfer through to other connected devices. The transcoding system should also be able to recover from security breaches and may need to be custom designed for specific security requirements.