SRT: Solve mpegts demux assert bug (#2670)
SRT: Solve mpegts demux assert bug (#2670)

* solve mpegts demux bug

* remove assert

* add error log in mpegts demux

* sovle compile problem

Co-authored-by: shiwei <295d7a173909c23bc2ea45e5d699fa8ccb4868ca@kuaishou.com>
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