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</o:shapelayout></xml><![endif]--></head><body lang=ZH-CN link="#0563C1" vlink="#954F72" style='text-justify-trim:punctuation'><div class=WordSection1><p class=MsoNormal><span lang=EN-US>Hi,<o:p></o:p></span></p><p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US>H.264 and AAC frames are generated and put into 2 CLists in memory. Two classes are implemented to get frames from memory, live this:<o:p></o:p></span></p><p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US style='background:yellow;mso-highlight:yellow'>void ADTSRealTimeStreamSource::doGetNextFrame()<o:p></o:p></span></p><p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US style='background:yellow;mso-highlight:yellow'>{<o:p></o:p></span></p><p class=MsoNormal style='text-indent:42.0pt'><span lang=EN-US style='background:yellow;mso-highlight:yellow'>if(fAVPktList->empty()){ </span><span lang=EN-US> //if no frames in CList, sleep until CList is not empty.<o:p></o:p></span></p><p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US style='background:yellow;mso-highlight:yellow'> clock_t loopStart,loopEnd,interval= 0;<o:p></o:p></span></p><p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US style='background:yellow;mso-highlight:yellow'> clock_t begin = clock();<o:p></o:p></span></p><p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US style='background:yellow;mso-highlight:yellow'> while(fAVPktList->empty()) {<o:p></o:p></span></p><p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US style='background:yellow;mso-highlight:yellow'> loopStart = clock();<o:p></o:p></span></p><p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US style='background:yellow;mso-highlight:yellow'> Sleep(WAITING_TIME_IN_LOOP);<o:p></o:p></span></p><p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US style='background:yellow;mso-highlight:yellow'> loopEnd = clock();<o:p></o:p></span></p><p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US style='background:yellow;mso-highlight:yellow'> interval += (loopEnd-loopStart);<o:p></o:p></span></p><p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US style='background:yellow;mso-highlight:yellow'> if(interval>60000)<o:p></o:p></span></p><p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US style='background:yellow;mso-highlight:yellow'> break;<o:p></o:p></span></p><p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US style='background:yellow;mso-highlight:yellow'> }<o:p></o:p></span></p><p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US style='background:yellow;mso-highlight:yellow'> clock_t end = clock();<o:p></o:p></span></p><p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US style='background:yellow;mso-highlight:yellow'> int num = fAVPktList->size();<o:p></o:p></span></p><p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US style='background:yellow;mso-highlight:yellow'> if(!num) {<o:p></o:p></span></p><p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US style='background:yellow;mso-highlight:yellow'> handleClosure();<o:p></o:p></span></p><p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US style='background:yellow;mso-highlight:yellow'> return;<o:p></o:p></span></p><p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US style='background:yellow;mso-highlight:yellow'> }<o:p></o:p></span></p><p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US style='background:yellow;mso-highlight:yellow'> }<o:p></o:p></span></p><p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US style='background:yellow;mso-highlight:yellow'>…….<o:p></o:p></span></p><p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US style='background:yellow;mso-highlight:yellow'>}</span><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US>Maybe the speed of streaming frames is much faster than the speed of generating frames. So when function “doGetNextFrame()” is called, no frame is put into memory. If I use sleep() to wait for frames, thread blocks and streaming AAC frames slowns down.<o:p></o:p></span></p><p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US>So What should I do to ensure both AAC and H.264 to streamed well when no frames come?<o:p></o:p></span></p><p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US>Thanks for your reply!<o:p></o:p></span></p><p class=MsoNormal style='text-indent:21.0pt'><span lang=EN-US><o:p> </o:p></span></p></div></body></html>