<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><blockquote type="cite"><div>Am I correct in saying that there should be an extra line in this SDP<br>which translates to an interpreted SPS/PPS NAL via the discrete<br>framer? Even without this line in the SDP, VLC should still be able<br>to understand the stream as the SPS/PPS are inline though?<br></div></blockquote><div><br></div>Not necessarily - depending upon how smart VLC's H.264 decoder is (or isn't).</div><div><br></div><div>But the problem here is that the SPS and PPS NAL units are *not* appearing in the stream, because the "H264VideoStreamDiscreteFramer" is not recognizing them. That's why there isn't a separate "a=fmtp:" line in the SDP description.</div><div><br></div><div>You can verify this yourself by reviewing the code for "H264VideoStreamDiscreteFramer::afterGettingFrame1()" (in "liveMedia/H264VideoStreamDiscreteFramer.cpp"). Note the "if" statement beginning at line 67, where the code checks the "nal_unit_type". In your case, it is apparently never seeing a SPS or PPS NAL unit. That's the problem (with your input data) that you need to address.</div><br><br><div apple-content-edited="true">
<span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; ">Ross Finlayson<br>Live Networks, Inc.<br><a href="http://www.live555.com/">http://www.live555.com/</a></span></span>
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