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<title>Re: [Live-devel] AAC in TS streaming</title>
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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Ross,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I used the wis-streamer as a sample for my code. It looks like
wis-streamer sends raw AAC packets without ADTS headers. This way the resulting
transport stream is not playable by most players (VLC, Elecard). Is there a
code that adds ADTS headers to AAC packets?<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I’m really not an expert at this, so maybe someone can
shed more light on the subject…<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>
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<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"'>
live-devel-bounces@ns.live555.com [mailto:live-devel-bounces@ns.live555.com] <b>On
Behalf Of </b>Stas Desyatnlkov<br>
<b>Sent:</b> Thursday, October 01, 2009 11:52 AM<br>
<b>To:</b> LIVE555 Streaming Media - development & use<br>
<b>Subject:</b> Re: [Live-devel] AAC in TS streaming<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:11.0pt;
font-family:"Calibri","sans-serif";color:#1F497D'>Oops, I actually use </span><b><span
style='font-family:"Courier New"'> <o:p></o:p></span></b></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:11.0pt;
font-family:"Calibri","sans-serif";color:#1F497D'>SimpleRTPSink* sink =
SimpleRTPSink::createNew(*env, rtpGroupsock, 33, 90000, "audio",
"mp2t", 1, True, False);<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><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I see the packets transmitted in WireShark, TS PID is 0xC0. VLAN
can’t play the resulting stream. In addition, the pts of the rtp is
always 0.<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><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>If I use VLAN to stream AAC in TS the PID=0x44 and pts is set
correctly.<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><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Any ideas?<o:p></o:p></span></p>
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<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"'>
live-devel-bounces@ns.live555.com [mailto:live-devel-bounces@ns.live555.com] <b>On
Behalf Of </b>Ross Finlayson<br>
<b>Sent:</b> Wednesday, September 30, 2009 9:10 PM<br>
<b>To:</b> LIVE555 Streaming Media - development & use<br>
<b>Subject:</b> Re: [Live-devel] AAC in TS streaming<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'>
<p class=MsoNormal><span style='font-size:10.0pt'>Does the following sequence
makes sense</span><o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>No, because a "MPEG4GenericRTPSink" is used to stream
MPEG-4 Elementary Stream data (e.g., AAC audio), *not* MPEG Transport Stream
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>I feeling deja vu here....<o:p></o:p></p>
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<pre>-- <o:p></o:p></pre>
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<p class=MsoNormal><br>
Ross Finlayson<br>
Live Networks, Inc.<br>
http://www.live555.com/<o:p></o:p></p>
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