Gustavo Girão
ABSTRACT
Many digital television standards provide a way to data transmission. The utilization of this capability includes the transmission of data stream for any interactive application. In this application the execution flow needs to be synchronized with video and audio streams. To transmit the data, video and audio streams in a synchronized way, the streams are packetized in data structures more adapted to the transmission. Some of these structures are PES (Packetized Elementary Stream) and TS (Transport Stream). TS packets are data structures that include information about synchronization, presentation and programs, which are being transmitted. The TS construction is an operation that can be called multiplexing. This operation includes some critical and complex tasks, such as PES analysis, table constructions, and the program clock reference calculation. This paper presents the design and implementation of a digital television multiplexer based on the ITU-T H.222.0 recommendation. This multiplexer was designed for Field Programmable Gate Array (FPGA). With this implementation a 338 Mbps bitrate was achieved. This bitrate is 16 times higher than the necessary to HDTV transmission
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Index Terms
- Implementation of a HDTV transport stream multiplexer based on ITU-T H.222.0 recommendation
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