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The first byte of each nalu is the header, and the lower 5 bits of this byte are of nalu type:
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<div class=""><span class="Apple-tab-span" style="white-space:pre"></span>type_value = head_byte & 0x1F;</div>
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<div class=""><span class="Apple-tab-span" style="white-space:pre"></span>switch( type_value){</div>
<div class=""><span class="Apple-tab-span" style="white-space:pre"></span>5: <span class="Apple-tab-span" style="white-space: pre;">
</span>// idr.</div>
<div class=""><span class="Apple-tab-span" style="white-space:pre"></span>7:<span class="Apple-tab-span" style="white-space:pre">
</span>//sps</div>
<div class=""><span class="Apple-tab-span" style="white-space:pre"></span>8:<span class="Apple-tab-span" style="white-space:pre">
</span>//pps</div>
<div class=""><span class="Apple-tab-span" style="white-space:pre"></span>}</div>
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LeiHe</div>
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<a href="mailto:helei0908@hotmail.com" class="">helei0908@hotmail.com</a></div>
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<div class="">在 2018年10月10日，上午6:58，Evan Odabashian <<a href="mailto:eodabash@gmail.com" class="">eodabash@gmail.com</a>> 写道：</div>
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<div class=""><span style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; float: none; display: inline !important;" class="">It
appears my problem was due to lack of IDR frames - playing the segments with ffplay gave me some more error messages to google ;-) I was able to get it working by forcing nvenc to emit an IDR frame at the beginning of each GOP. I can't figure out if there's
a way to tell from the parser whether the current frame is an IDR frame or just a regular I frame though, should this be possible to detect?</span></div>
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