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Individual buffer management in transport of scalable video

  • US 10,057,582 B2
  • Filed: 05/21/2015
  • Issued: 08/21/2018
  • Est. Priority Date: 05/21/2014
  • Status: Active Grant
First Claim
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1. A method of decoding a transport stream including a high efficiency video coding (HEVC) layered stream having a plurality of HEVC temporal layers included in one or more elementary streams, the method comprising:

  • receiving an HEVC video descriptor including one or more syntax elements in the HEVC video descriptor that apply to the whole HEVC layered stream;

    determining from the HEVC video descriptor one or more elements that indicate whether the plurality of HEVC temporal layers are present in one or more spatial layers in the HEVC layered stream;

    receiving at least one extension descriptor that extends the HEVC video descriptor for each of the plurality of HEVC temporal layers present in the HEVC layered stream;

    determining from the at least one extension descriptor that individual layer parameters for each of the plurality of HEVC temporal layers in the HEVC layered stream are present; and

    decoding each layer of the HEVC layered stream according to individual layer parameters signaled, wherein buffering for a decoding process includes;

    determining buffer parameter settings for buffering each of the plurality of HEVC temporal layers in the transport stream, wherein each of the plurality of HEVC temporal layers includes a respective buffer parameter setting;

    providing respective HEVC temporal layers to individual transport stream buffers for buffering each of the respective HEVC temporal layers in the one or more spatial layers in the HEVC layered stream;

    buffering the plurality of HEVC temporal layers in the individual transport stream buffers according to the respective buffer parameter settings.

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