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</o:shapelayout></xml><![endif]--></head><body lang=FR link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'>In an H264 elementary stream, the framerate could be defined in the SPS, but this is an optional field (see ISO 14496-10).<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'>Regards,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'> Michel.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'>[@@ THALES GROUP INTERNAL @@]<o:p></o:p></span></p></div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>De :</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> live-devel [mailto:live-devel-bounces@ns.live555.com] <b>De la part de</b> Deanna Earley<br><b>Envoyé :</b> mardi 2 décembre 2014 10:14<br><b>À :</b> 'LIVE555 Streaming Media - development & use'<br><b>Objet :</b> Re: [Live-devel] Playback Speed<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;mso-fareast-language:EN-US'>H.264 is a video frame encoding format. It has no concept of time.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;mso-fareast-language:EN-US'>You need to write out as one of the standard file containers to make a standard file.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;mso-fareast-language:EN-US'>I think LiveMedia has sinks for various types like Matroska and MP4.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;mso-fareast-language:EN-US'>This will give you the metadata like format, length, framerate, resolution, etc.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><div><p class=MsoNormal><span lang=EN-GB style='font-size:10.5pt;font-family:"Trebuchet MS","sans-serif";color:#5E5E5F'>-- <o:p></o:p></span></p><p class=MsoNormal><b><span lang=EN-GB style='font-size:10.5pt;font-family:"Trebuchet MS","sans-serif";color:#5E5E5F'>Deanna Earley |</span></b><span lang=EN-GB style='font-size:10.5pt;font-family:"Trebuchet MS","sans-serif";color:#5E5E5F'> Lead developer <b>| </b></span><b><span lang=EN-US style='font-size:10.5pt;font-family:"Trebuchet MS","sans-serif";color:black'>icatcher</span></b><b><span lang=EN-US style='font-size:10.5pt;font-family:"Trebuchet MS","sans-serif";color:#FF9223'>cctv</span></b><span lang=EN-US style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><b><span lang=EN-GB style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'><o:p> </o:p></span></b></p><p class=MsoNormal><span lang=EN-US style='font-size:9.0pt;font-family:"Trebuchet MS","sans-serif";color:#5E5E5F'>w: </span><u><span lang=EN-US style='font-size:9.0pt;font-family:"Trebuchet MS","sans-serif";color:#595959'><a href="http://www.icode.co.uk/icatcher">www.icode.co.uk/icatcher</a></span></u><span lang=EN-US style='font-size:9.0pt;font-family:"Trebuchet MS","sans-serif";color:#5E5E5F'> | t: 01329 835335 | f: 01329 835338</span><span lang=EN-US style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:7.5pt;font-family:"Trebuchet MS","sans-serif";color:#919191'>Registered Office : 71 The Hundred, Romsey, SO51 8BZ. Company Number : 03428325</span><span lang=EN-US style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'><o:p></o:p></span></p></div><p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D;mso-fareast-language:EN-US'><o:p> </o:p></span></p><div style='border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm 4.0pt'><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif"'> live-devel [<a href="mailto:live-devel-bounces@ns.live555.com">mailto:live-devel-bounces@ns.live555.com</a>] <b>On Behalf Of </b>Mark Bondurant<br><b>Sent:</b> 01 December 2014 18:11<br><b>To:</b> 'LIVE555 Streaming Media - development & use'<br><b>Subject:</b> Re: [Live-devel] Playback Speed<o:p></o:p></span></p></div></div><p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Oh. I didn't know that. I assumed it had to be part of the h264 headers (one or the other). Is there any way, that's comprehensible to my newb video skillset, to add that to my filesink, as in perhaps an example in one of the test programs?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> live-devel [<a href="mailto:live-devel-bounces@ns.live555.com">mailto:live-devel-bounces@ns.live555.com</a>] <b>On Behalf Of </b>Deanna Earley<br><b>Sent:</b> Thursday, November 27, 2014 1:07 AM<br><b>To:</b> 'LIVE555 Streaming Media - development & use'<br><b>Subject:</b> Re: [Live-devel] Playback Speed<o:p></o:p></span></p></div></div><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Play in what?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Raw H.264 streams have no “speed” encoded with them, so you’d need to find a way to specify that in your player, or use a container (like AVI, mp4, etc) that stores the extra metadata.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>The player is probably assuming a 25fps.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><p class=MsoNormal><span lang=EN-GB style='font-size:10.5pt;font-family:"Trebuchet MS","sans-serif";color:#5E5E5F'>-- <o:p></o:p></span></p><p class=MsoNormal><b><span lang=EN-GB style='font-size:10.5pt;font-family:"Trebuchet MS","sans-serif";color:#5E5E5F'>Deanna Earley |</span></b><span lang=EN-GB style='font-size:10.5pt;font-family:"Trebuchet MS","sans-serif";color:#5E5E5F'> Lead developer <b>| </b></span><b><span lang=EN-US style='font-size:10.5pt;font-family:"Trebuchet MS","sans-serif";color:black'>icatcher</span></b><b><span lang=EN-US style='font-size:10.5pt;font-family:"Trebuchet MS","sans-serif";color:#FF9223'>cctv</span></b><span lang=EN-US style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><b><span lang=EN-GB style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'><o:p> </o:p></span></b></p><p class=MsoNormal><span lang=EN-US style='font-size:9.0pt;font-family:"Trebuchet MS","sans-serif";color:#5E5E5F'>w: </span><u><span lang=EN-US style='font-size:9.0pt;font-family:"Trebuchet MS","sans-serif";color:#595959'><a href="http://www.icode.co.uk/icatcher">www.icode.co.uk/icatcher</a></span></u><span lang=EN-US style='font-size:9.0pt;font-family:"Trebuchet MS","sans-serif";color:#5E5E5F'> | t: 01329 835335 | f: 01329 835338</span><span lang=EN-US style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:7.5pt;font-family:"Trebuchet MS","sans-serif";color:#919191'>Registered Office : 71 The Hundred, Romsey, SO51 8BZ. Company Number : 03428325</span><span lang=EN-US style='font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'><o:p></o:p></span></p></div><p class=MsoNormal><span lang=EN-GB style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div style='border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm 4.0pt'><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif"'> live-devel [<a href="mailto:live-devel-bounces@ns.live555.com">mailto:live-devel-bounces@ns.live555.com</a>] <b>On Behalf Of </b>Mark Bondurant<br><b>Sent:</b> 25 November 2014 17:23<br><b>To:</b> 'LIVE555 Streaming Media - development & use'<br><b>Subject:</b> [Live-devel] Playback Speed<o:p></o:p></span></p></div></div><p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I'm encountering a curious problem with payback speed. I'm pulling an RTSP play stream from my cameras, copying the NAL's, prepending them with the start code, as contiguous GOP units straight to disk, headers and all. And they play fine. <i>Just at double speed.</i> The camera is set to NTSC/H264/CIF/12 fps/Constant Bit Rate/0.125 Mbps. Any ideas what I'm doing wrong?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p></div></div></div></body></html>