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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal>Hello!<o:p></o:p></p><p class=MsoNormal>Thank you very much for this project!<o:p></o:p></p><p class=MsoNormal>Please help me to understand how I can retrieve the <span style='background:yellow;mso-highlight:yellow'>Frame Width, Frame Height and Frame Type (I or P frame).</span><o:p></o:p></p><p class=MsoNormal>My code example is based on testRTSPClient.cpp<o:p></o:p></p><p class=MsoNormal>I am in the function <span style='font-size:9.5pt;font-family:Consolas;color:#2B91AF;background:white;mso-highlight:white'>DummySink</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'>::afterGettingFrame</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'>fSubsession.videoWidth() and fSubsession.videoHeight()</span><span style='font-size:9.5pt;font-family:Consolas;color:black'> always return 0.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.5pt;font-family:Consolas;color:black'>All other parameters works fine.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.5pt;font-family:Consolas;color:black'>I have h264 video.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.5pt;font-family:Consolas;color:black'>Please help!<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.5pt;font-family:Consolas;color:black'>Thank you!</span><o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>void</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:9.5pt;font-family:Consolas;color:#2B91AF;background:white;mso-highlight:white'>DummySink</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'>::afterGettingFrame(</span><span style='font-size:9.5pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>unsigned</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:9.5pt;font-family:Consolas;color:gray;background:white;mso-highlight:white'>frameSize</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'>, </span><span style='font-size:9.5pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>unsigned</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:9.5pt;font-family:Consolas;color:gray;background:white;mso-highlight:white'>numTruncatedBytes</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'>, </span><span style='font-size:9.5pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>struct</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:9.5pt;font-family:Consolas;color:#2B91AF;background:white;mso-highlight:white'>timeval</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:9.5pt;font-family:Consolas;color:gray;background:white;mso-highlight:white'>presentationTime</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'>, </span><span style='font-size:9.5pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>unsigned</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:9.5pt;font-family:Consolas;color:green;background:white;mso-highlight:white'>/*durationInMicroseconds*/</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'>)<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'>{<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:9.5pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>if</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> (mAudioVideoIn != </span><span style='font-size:9.5pt;font-family:Consolas;color:#6F008A;background:white;mso-highlight:white'>NULL</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'>)<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> {<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:yellow;mso-highlight:yellow'>mAudioVideoIn->OnFrameReceived(fStreamId, fSubsession.mediumName(), fSubsession.codecName(), fReceiveBuffer, </span><span style='font-size:9.5pt;font-family:Consolas;color:gray;background:yellow;mso-highlight:yellow'>frameSize</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:yellow;mso-highlight:yellow'>, fSubsession.videoWidth(), fSubsession.videoHeight(), 0);</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> }<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:9.5pt;font-family:Consolas;color:green;background:white;mso-highlight:white'>// We've just received a frame of data. (Optionally) print out information about it:</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>#ifdef</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:9.5pt;font-family:Consolas;color:#6F008A;background:white;mso-highlight:white'>DEBUG_PRINT_EACH_RECEIVED_FRAME</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:9.5pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>if</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> (fStreamId != </span><span style='font-size:9.5pt;font-family:Consolas;color:#6F008A;background:white;mso-highlight:white'>NULL</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'>) envir() << </span><span style='font-size:9.5pt;font-family:Consolas;color:#A31515;background:white;mso-highlight:white'>"Stream \""</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> << fStreamId << </span><span style='font-size:9.5pt;font-family:Consolas;color:#A31515;background:white;mso-highlight:white'>"\"; "</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'>;<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> envir() << fSubsession.mediumName() << </span><span style='font-size:9.5pt;font-family:Consolas;color:#A31515;background:white;mso-highlight:white'>"/"</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> << fSubsession.codecName() << </span><span style='font-size:9.5pt;font-family:Consolas;color:#A31515;background:white;mso-highlight:white'>":\tReceived "</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> << </span><span style='font-size:9.5pt;font-family:Consolas;color:gray;background:white;mso-highlight:white'>frameSize</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> << </span><span style='font-size:9.5pt;font-family:Consolas;color:#A31515;background:white;mso-highlight:white'>" bytes"</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'>;<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:9.5pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>if</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> (</span><span style='font-size:9.5pt;font-family:Consolas;color:gray;background:white;mso-highlight:white'>numTruncatedBytes</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> > 0) envir() << </span><span style='font-size:9.5pt;font-family:Consolas;color:#A31515;background:white;mso-highlight:white'>" (with "</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> << </span><span style='font-size:9.5pt;font-family:Consolas;color:gray;background:white;mso-highlight:white'>numTruncatedBytes</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> << </span><span style='font-size:9.5pt;font-family:Consolas;color:#A31515;background:white;mso-highlight:white'>" bytes truncated)"</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'>;<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:9.5pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>char</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> uSecsStr[6 + 1]; </span><span style='font-size:9.5pt;font-family:Consolas;color:green;background:white;mso-highlight:white'>// used to output the 'microseconds' part of the presentation time</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> sprintf(uSecsStr, </span><span style='font-size:9.5pt;font-family:Consolas;color:#A31515;background:white;mso-highlight:white'>"%06u"</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'>, (</span><span style='font-size:9.5pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>unsigned</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'>)</span><span style='font-size:9.5pt;font-family:Consolas;color:gray;background:white;mso-highlight:white'>presentationTime</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'>.tv_usec);<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> envir() << </span><span style='font-size:9.5pt;font-family:Consolas;color:#A31515;background:white;mso-highlight:white'>".\tPresentation time: "</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> << (</span><span style='font-size:9.5pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>int</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'>)</span><span style='font-size:9.5pt;font-family:Consolas;color:gray;background:white;mso-highlight:white'>presentationTime</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'>.tv_sec << </span><span style='font-size:9.5pt;font-family:Consolas;color:#A31515;background:white;mso-highlight:white'>"."</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> << uSecsStr;<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:9.5pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>if</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> (fSubsession.rtpSource() != </span><span style='font-size:9.5pt;font-family:Consolas;color:#6F008A;background:white;mso-highlight:white'>NULL</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> && !fSubsession.rtpSource()->hasBeenSynchronizedUsingRTCP())<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> {<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> envir() << </span><span style='font-size:9.5pt;font-family:Consolas;color:#A31515;background:white;mso-highlight:white'>"!"</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'>; </span><span style='font-size:9.5pt;font-family:Consolas;color:green;background:white;mso-highlight:white'>// mark the debugging output to indicate that this presentation time is not RTCP-synchronized</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> }<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>#ifdef</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> DEBUG_PRINT_NPT<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> envir() << </span><span style='font-size:9.5pt;font-family:Consolas;color:#A31515;background:white;mso-highlight:white'>"\tNPT: "</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> << fSubsession.getNormalPlayTime(presentationTime);<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>#endif</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> envir() << </span><span style='font-size:9.5pt;font-family:Consolas;color:#A31515;background:white;mso-highlight:white'>"\n"</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'>;<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas;color:blue;background:white;mso-highlight:white'>#endif</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> </span><span style='font-size:9.5pt;font-family:Consolas;color:green;background:white;mso-highlight:white'>// Then continue, to request the next frame of data:</span><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'> continuePlaying();<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.5pt;font-family:Consolas;color:black;background:white;mso-highlight:white'>}</span><o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>