SRT: Fix bug for multiple NALUs, when configure OBS in zerolatency. (#2440)
SRT: Fix bug for multiple NALUs, when configure OBS in zerolatency. (#2440)

* solve srt push bugs

* solve h264 mutiple nalus in srt when obs is configured in zerolatency

* optimize error code

* optimize error code

* optimize error code

* add commemnt:we only skip pps/sps frame and send left nalus in srt

* add commemnt:we only skip pps/sps frame and send left nalus in srt

Co-authored-by: shiwei <295d7a173909c23bc2ea45e5d699fa8ccb4868ca@kuaishou.com>
winlinvip/simple-rtmp-server,winlinvip/srs,winlinvip/srs,winlinvip/srs,winlinvip/srs,ossrs/srs,winlinvip/srs,ossrs/srs,ossrs/srs,ossrs/srs,ossrs/srs,ossrs/srs,winlinvip/srs