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RTC: Refine ID parsing

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This commit is contained in:
winlin 2021-03-24 18:58:01 +08:00
parent 89f941fadc
commit 0cb05a2953
1 changed files with 5 additions and 5 deletions
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10
trunk/src/kernel/srs_kernel_rtc_rtp.cpp
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@ -411,7 +411,7 @@ srs_error_t SrsRtpExtensions::decode_0xbede(SrsBuffer* buf)
// Note that 'len' is the header extension element length, which is the
// number of bytes - 1.
uint8_t id = (v & 0xF0) >> 4;
uint8_t len = (v & 0x0F);
uint8_t len = (v & 0x0F) + 1;
SrsRtpExtensionType xtype = types_? types_->get_type(id) : kRtpExtensionNone;
if (xtype == kRtpExtensionTransportSequenceNumber) {
@ -421,10 +421,10 @@ srs_error_t SrsRtpExtensions::decode_0xbede(SrsBuffer* buf)
}
has_ext_ = true;
} else {
if (!buf->require(len+1+1)) {
return srs_error_new(ERROR_RTC_RTP_MUXER, "requires %d bytes", len+1+1);
if (!buf->require(len+1)) {
return srs_error_new(ERROR_RTC_RTP_MUXER, "requires %d bytes", len+1);
}
buf->skip(len + 1 + 1);
buf->skip(len + 1);
}
} else if (xtype == kRtpExtensionAudioLevel) {
if((err = audio_level_.decode(buf)) != srs_success) {
@ -432,7 +432,7 @@ srs_error_t SrsRtpExtensions::decode_0xbede(SrsBuffer* buf)
}
has_ext_ = true;
} else {
buf->skip(1 + (len + 1));
buf->skip(1 + len);
}
}