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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Thanks Russell.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> asterisk-dev-bounces@lists.digium.com [mailto:asterisk-dev-bounces@lists.digium.com]
<b>On Behalf Of </b>Russell Bryant<br>
<b>Sent:</b> Monday, August 25, 2014 4:55 AM<br>
<b>To:</b> Asterisk Developers Mailing List<br>
<b>Subject:</b> Re: [asterisk-dev] Does asterisk video frame contains video data only or there is RTP headers too ?<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Mon, Aug 25, 2014 at 3:20 AM, Shishir Pokharel <<a href="mailto:Shishir.Pokharel@on24.com" target="_blank">Shishir.Pokharel@on24.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Hi list,<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I am developing an application to convert different video format to H.264 and transport it via RTMP protocol to FMS server. I am bit confused about asterisk Video Frame , my confusion
is does the Video frame has the RTP headers on it or the just the video data?<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Going through the asterisk code I figured out the frame structure (ast_frame) has frame-> datalen (length of data) & frame->data.ptr(pointer to actual data). Does this data contains
only video data’s or there is RTP headers information’s too ?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Just the video data. <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">For sending, The frames sometimes also have an optimization, frame->offset, which is how many bytes are available ahead of frame->data.ptr. That lets you write headers and use the frame's buffer directly for a socket send instead of having
to copy the data to another buffer for every frame you're sending.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Good luck with your work!<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">-- <o:p></o:p></p>
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<p class="MsoNormal">Russell Bryant <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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