<html><head><base href="x-msg://1656/"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><br><div><div>On Dec 21, 2011, at 6:49 AM, David J Myers wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><span class="Apple-style-span" style="border-collapse: separate; 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; "><div lang="EN-GB" link="blue" vlink="purple"><div class="WordSection1" style="page: WordSection1; "><div style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; ">On further examination of my encoded frame data, it looks like an I-frame consists of 3 NAL units, each preceded by 00 00 00 01, the first NALU is 17 bytes long, the second NALU is 9 bytes long, and the 3<sup>rd</sup><span class="Apple-converted-space"> </span>NALU is the rest of the frame size. Each P-frame is just one NALU.<o:p></o:p></div><div style="margin-top: 0cm; margin-right: 0cm; margin-left: 0cm; margin-bottom: 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; ">My code is now using H264VideoStreamDiscreteFramer and sending each NAL unit one by one. So each I-Frame is sent with 3 calls to afterGetting(this).</div></div></div></span></blockquote><div><br></div>You can do this only if each call to "afterGetting(this)" corresponds to exactly one earlier call to "doGetNextFrame()". I.e., you *must not* call "afterGetting(this)" more than once for each call to "doGetNextFrame()".</div><div><br></div><div>I.e, if you want to deliver these three NAL units - one at a time - to the downstream object (in this case, a "H264VideoStreamDiscreteFramer"), then you must really do so 'one at a time'. Each call to "doGetNextFrame()" must be followed by one (and only one) data delivery, followed by a call to "FramedSource::afterGetting()".</div><div><br></div><div>If you do this properly, though, then this should produce a proper RTSP/RTP stream. (However, I suggest that you test this first with "openRTSP", rather than VLC.)</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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