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RTC: Fast parse ssrc and find the publisher

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This commit is contained in:
winlin 2021-02-05 14:13:48 +08:00
parent 5f31868ce6
commit dffbebfe6f
3 changed files with 39 additions and 10 deletions
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15
trunk/src/app/srs_app_rtc_conn.cpp
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@ -2095,19 +2095,14 @@ srs_error_t SrsRtcConnection::find_publisher(char* buf, int size, SrsRtcPublishS
return srs_error_new(ERROR_RTC_RTCP, "no publisher");
}
SrsRtpHeader header;
if (true) {
SrsBuffer* buffer = new SrsBuffer(buf, size);
SrsAutoFree(SrsBuffer, buffer);
header.ignore_padding(true);
if(srs_success != (err = header.decode(buffer))) {
return srs_error_wrap(err, "decode rtp header");
}
uint32_t ssrc = srs_rtp_fast_parse_ssrc(buf, size);
if (ssrc == 0) {
return srs_error_new(ERROR_RTC_NO_PUBLISHER, "invalid ssrc");
}
map<uint32_t, SrsRtcPublishStream*>::iterator it = publishers_ssrc_map_.find(header.get_ssrc());
map<uint32_t, SrsRtcPublishStream*>::iterator it = publishers_ssrc_map_.find(ssrc);
if(it == publishers_ssrc_map_.end()) {
return srs_error_new(ERROR_RTC_NO_PUBLISHER, "no publisher for ssrc:%u", header.get_ssrc());
return srs_error_new(ERROR_RTC_NO_PUBLISHER, "no publisher for ssrc:%u", ssrc);
}
*ppublisher = it->second;