<HTML><HEAD><TITLE></TITLE> <META content="KsDHTMLEDLib.ocx, FreeWare HTML Editor 1.164.2, ?Kurt Senfer" name=GENERATOR> <META http-equiv=Content-Type content="text/html; charset=GB2312"></HEAD> <BODY style="FONT-SIZE: 8pt; FONT-FAMILY: Tahoma" leftMargin=5 topMargin=5 #ffffff> <DIV>Daniel_Díaz, Hello </DIV> <DIV> </DIV> <DIV>It sounds that you meet the same problem.</DIV> <DIV>First, you need to parse codec_data, check file "h264.c" from gst-ffmpeg-0.10.2, the function "decode_frame" show you how to parse it.</DIV> <DIV>Second, you should convert frame to nal unit, check file "media_export.c" from gpac-0.4.2, the function "gf_media_export_native" show you how to convert based pps, sps and unit size. </DIV> <DIV> </DIV> <DIV>jp_liu, <A href="mailto:jp_liu@astrocom.cn">jp_liu@astrocom.cn</A></DIV> <DIV>2007-04-04 </DIV> <BLOCKQUOTE style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> <DIV style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; LINE-HEIGHT: normal; FONT-STYLE: normal; FONT-VARIANT: normal">----- Receiving the following content ----- </DIV> <DIV style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; BACKGROUND: #e4e4e4; LINE-HEIGHT: normal; FONT-STYLE: normal; FONT-VARIANT: normal; font-color: black"><B>From:</B> <A href="mailto:mrchapp@gmail.com">Daniel_Díaz</A> </DIV> <DIV style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; LINE-HEIGHT: normal; FONT-STYLE: normal; FONT-VARIANT: normal"><B>Receiver:</B> <A href="mailto:gstreamer-devel@lists.sourceforge.net">gstreamer-devel@lists.sourceforge.net</A> </DIV> <DIV style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; LINE-HEIGHT: normal; FONT-STYLE: normal; FONT-VARIANT: normal"><B>Time:</B> 2007-04-04, 04:01:48</DIV> <DIV style="FONT-WEIGHT: normal; FONT-SIZE: 9pt; LINE-HEIGHT: normal; FONT-STYLE: normal; FONT-VARIANT: normal"><B>Subject:</B> [gst-devel] Demuxing H.264</DIV> <DIV><BR></DIV> <DIV></DIV> <DIV></DIV> <DIV> <DIV>Hello!<BR><BR>With some help from the IRC channel, I managed to get my MPEG-4<BR>decoder to work with a demuxer. That is, "filesrc ! qtdemux !<BR>mympeg4dec ! mysink" now works correctly, thanks to the codec_data<BR>being prepended to the first buffer.<BR><BR>However, that's not helping much with H.264 and am having a hard time<BR>with it. The problem is that my decoder chokes with the raw data. I<BR>digged into gstffmpeg's H.264 decoder and the codec_data seems to be<BR>information about NAL Units.<BR><BR>Is there any way to decode this information without #including and<BR>linking against libavcodec?<BR><BR>I noticed this was discussed in this mailing list a couple of days<BR>ago, but couldn't find the final resolution.<BR><BR>Thanks for any pointers. Greetings!<BR><BR>Daniel Díaz<BR><A href="mailto: yosoy@danieldiaz.org">yosoy@danieldiaz.org</A><BR><BR>-------------------------------------------------------------------------<BR>Take Surveys. Earn Cash. Influence the Future of IT<BR>Join SourceForge.net's Techsay panel and you'll get the chance to share your<BR>opinions on IT & business topics through brief surveys-and earn cash<BR><A href="http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV">http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV</A><BR>_______________________________________________<BR>gstreamer-devel mailing list<BR><A href="mailto: gstreamer-devel@lists.sourceforge.net">gstreamer-devel@lists.sourceforge.net</A><BR><A href="https://lists.sourceforge.net/lists/listinfo/gstreamer-devel">https://lists.sourceforge.net/lists/listinfo/gstreamer-devel</A><BR><BR></DIV></DIV></BLOCKQUOTE></BODY></HTML>