Method and device for determining code stream transmission state

Method and device for determining code stream transmission state

  • CN 106,658,071 B
  • Filed: 11/28/2016
  • Issued: 10/27/2020
  • Est. Priority Date: 11/28/2016
  • Status: Active Grant
First Claim
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1. A method for determining a code stream transmission state is characterized by comprising the following steps:

  • receiving a data packet sent by a signal source end, and extracting a signal source end code stream identifier and a PES/ES characteristic value of the signal source end code stream contained in the data packet, wherein the PES/ES characteristic value at least comprises one of the following values;

    PES frame length, GOP structure, MB type and time code, wherein PES/ES characteristic value refers to characteristic values of ES level and PES level;

    searching a code stream corresponding to the code stream identifier of the signal source end from the received code stream, and taking the searched code stream as a target code stream;

    extracting PES/ES characteristic values of the target code stream;

    comparing whether the PES/ES characteristic value of the target code stream is consistent with the PES/ES characteristic value of the signal source end code stream;

    if the target code stream is consistent with the target code stream, determining that the transmission process of the target code stream is normal;

    wherein, comparing whether the PES/ES characteristic value of the target code stream is consistent with the PES/ES characteristic value of the signal source code stream includes;

    and when the PES/ES characteristic value comprises a PES frame length, a GOP structure, an MB type and a time code, respectively comparing whether the PES frame length, the GOP structure, the MB type and the time code of the target code stream and the signal source end code stream are the same, and if so, determining that the PES/ES characteristic value of the target code stream is consistent with the PES/ES characteristic value of the signal source end code stream.

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