• how DVB SI EIT section mapping into transport stream packet?


    the max byte size of DVB SI EIT section is 4096 while the transport stream packet's payload max size is 188. so how to map DVB SI EIT section into TS packet?

     payload_unit_start_indicator – The payload_unit_start_indicator is a 1-bit flag which has normative meaning for
    Transport Stream packets that carry PES packets (refer to 2.4.3.6) or PSI data (refer to 2.4.4).

    When the payload of the Transport Stream packet contains PSI data, the payload_unit_start_indicator has the following
    significance: if the Transport Stream packet carries the first byte of a PSI section, the payload_unit_start_indicator value
    shall be '1', indicating that the first byte of the payload of this Transport Stream packet carries the pointer_field. If the
    Transport Stream packet does not carry the first byte of a PSI section, the payload_unit_start_indicator value shall be '0',
    indicating that there is no pointer_field in the payload. Refer to 2.4.4.1 and 2.4.4.2(pointer_field). This also applies to private streams of
    stream_type 5 (refer to Table 2-29).
    For null packets the payload_unit_start_indicator shall be set to '0'.

    references

    1. en 300468 Digital Video Broadcasting (DVB) Specification for Service Information (SI) in DVB systems
    2. 13818-1 Information technology — Generic coding of moving pictures and associated audio information: Systems


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  • 原文地址:https://www.cnblogs.com/aspirs/p/6539014.html
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