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RTC: process twcc before srtp unprotected

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This commit is contained in:
jinxue.cgh 2020-06-27 14:37:35 +08:00 • committed by winlin
parent 121266ecbf
commit 6ff048ed35
3 changed files with 28 additions and 13 deletions
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31
trunk/src/app/srs_app_rtc_conn.cpp
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@ -1196,6 +1196,25 @@ srs_error_t SrsRtcPublisher::on_rtp(char* data, int nb_data)
return err;
}
if (0 != twcc_ext_id_) {
SrsBuffer b0(data, nb_data); SrsRtpHeader h0;
h0.set_decode_only_header(true);
h0.set_extensions(&extension_types_);
if ((err = h0.decode(&b0)) != srs_success) {
return srs_error_wrap(err, "process twcc to decode rtp header");
}
uint16_t twcc_sn = 0;
if ((err = h0.get_twcc_sequence_number(twcc_sn)) == srs_success) {
if((err = on_twcc(twcc_sn)) != srs_success) {
return srs_error_wrap(err, "fail to process twcc packet");
}
} else {
// TODO: FIXME: process no twcc seq number for audio ssrc
srs_error_reset(err);
}
}
// Decrypt the cipher to plaintext RTP data.
int nb_unprotected_buf = nb_data;
char* unprotected_buf = new char[kRtpPacketSize];
@ -1232,18 +1251,6 @@ srs_error_t SrsRtcPublisher::on_rtp(char* data, int nb_data)
if ((err = pkt->decode(&b)) != srs_success) {
return srs_error_wrap(err, "decode rtp packet");
}
if (0 != twcc_ext_id_) {
uint16_t twcc_sn = 0;
if ((err = pkt->header.get_twcc_sequence_number(twcc_sn)) == srs_success) {
if((err = on_twcc(twcc_sn))) {
return srs_error_wrap(err, "fail to process twcc packet");
}
} else {
// TODO: FIXME: process no twcc seq number for audio ssrc
srs_error_reset(err);
}
}
}
// For source to consume packet.