That means you are somewhere pushing GstBuffer with NULL data part and some timestamp. <br><br>OK can you tell that the video play duration is fine or its doubled ? <br><br><br><div class="gmail_quote">On Mon, Jul 19, 2010 at 1:31 PM, Prabhulinga Swamy B S <span dir="ltr"><<a href="http://prabhulingaswamy.bs">prabhulingaswamy.bs</a>@<a href="http://globaledgesoft.com">globaledgesoft.com</a>></span> wrote:<br> <blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"><div><div></div><div class="h5"> <div bgcolor="#ffffff" text="#000000"> <br> Hi,<br> I agree with h264parse can complete h264 frames.<br> <br> Before starting gstreamer pipeline, I'll negotiates the video resolution. Thats not a problem.<br> <br> The reason, I'm receiving complete h264 frames before pushing to h264parse is, another display<br> application using ffmpeg is displaying the live stream. Display application uses the completed<br> frames for displaying.<br> <br> My problem is with dummy frames written into avi file.<br> <br> <br> On 07/15/2010 11:36 AM, sudarshan bisht wrote: <blockquote type="cite"> <div> Hi , </div> <div> </div> <div> </div> <div> You are setting caps 800x600 in caps but you output shows 1280x720 ?? </div> <div><br> And why you are waiting to receive a complete frame ? you can simply push the data to appsrc , h264parse is there to build a complete frame .</div> <div> </div> <div><br> </div> <div class="gmail_quote">On Thu, Jul 15, 2010 at 11:15 AM, Prabhulinga Swamy B S <span dir="ltr"><<a href="http://prabhulingaswamy.bs" target="_blank">prabhulingaswamy.bs</a>@<a href="http://globaledgesoft.com" target="_blank">globaledgesoft.com</a>></span> wrote:<br> <blockquote style="border-left: 1px solid rgb(204, 204, 204); margin: 0px 0px 0px 0.8ex; padding-left: 1ex;" class="gmail_quote">hi Sandeep,<br> thank you for your reply.<br> <br> Yes, I'm sure of receiving 30 fps from the network. After<br> completely receiving<br> the frame, I'm incrementing frame count.<br> <br> What I mean about the duplicate frames is, after every valid frame<br> in the resulting<br> video file, there is a duplicate and empty frame.<br> <br> The fallowing output can clear your doubt.<br> <br> prabhu@prabhu:avi $ ffmpeg -v 5 -i sample.avi -f null -<br> <br> Input #0, avi, from 'sample.avi':<br> Duration: 00:00:00.00, start: 0.000000, bitrate: -2147483 kb/s<br> Stream #0.0, 1/60: Video: h264, yuv420p, 1280x720, 1/120, 59.94<br> tbr, 60 tbn, 120 tbc<br> Output #0, null, to 'pipe:':<br> Stream #0.0, 1/90000: Video: rawvideo, yuv420p, 1280x720,<br> 1001/60000, q=2-31, 200 kb/s, 90k tbn, 59.94 tbc<br> Stream mapping:<br> Stream #0.0 -> #0.0<br> existing PPS referenced<br> <br> [h264 @ 0x806ed70]non-existing PPS referenced<br> [h264 @ 0x806ed70]decode_slice_header error<br> [h264 @ 0x806ed70]no frame!<br> Error while decoding stream #0.0<br> Error while decoding stream #0.0<br> Last message repeated 1 times<br> [h264 @ 0x806ed70]non-existing PPS referenced<br> [h264 @ 0x806ed70]decode_slice_header error<br> [h264 @ 0x806ed70]no frame!<br> Error while decoding stream #0.0<br> *** 1 dup!<br> Error while decoding stream #0.0<br> *** 1 dup!<br> .<br> .<br> .<br> Error while decoding stream #0.0<br> *** 1 dup!<br> frame= 315 fps=122 q=0.0 Lsize= -0kB time=5.26 bitrate=<br> -0.0kbits/s dup=315 drop=0<br> video:0kB audio:0kB global headers:0kB muxing overhead -inf%<br> <br> I've received 315 frames from the network and pushed those many frames into<br> gstreamer pipeline. But don't know why these dummy frames are written<br> into the file.<br> <br> For ex, if I receive 30MB of video data, the resulting file is also of<br> same size, but<br> frames count will be double the original frames.<br> <div><br> <br> <br> <br> On 07/14/2010 09:38 PM, Sandeep Prakash wrote:<br> > Hi,<br> ><br> ><br> > Prabhulinga Swamy B S wrote:<br> ><br> >> appsrc is-live=true<br> >> "caps=video/x-h264,width=800,height=600,framerate=30/1" ! \<br> >> h264parse ! queue ! avimux ! queue ! filesink<br> >> location=filename.avi<br> >><br> >><br> > Are you sure the h264 stream you are getting from the network has 30 fps?<br> ><br> ><br> > Prabhulinga Swamy B S wrote:<br> ><br> >> But the resulting file is having duplicate frames.<br> >> For ex, if i push 200 frames, the resulting file contain nearly 200<br> >> frames.<br> >><br> >><br> > Plz explain in detail on the above statements. What does "nearly" mean?<br> ><br> > Regards,<br> > Sandeep<br> ><br> <br> --<br> <br> </div> </blockquote> </div> </blockquote> <br> <pre cols="72">-- Regards, Prabhulinga Swamy B S </pre> </div> </div></div><br>------------------------------------------------------------------------------<br> This SF.net email is sponsored by Sprint<br> What will you do first with EVO, the first 4G phone?<br> Visit <a href="http://sprint.com/first" target="_blank">sprint.com/first</a> -- <a href="http://p.sf.net/sfu/sprint-com-first" target="_blank">http://p.sf.net/sfu/sprint-com-first</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" target="_blank">https://lists.sourceforge.net/lists/listinfo/gstreamer-devel</a><br> <br></blockquote></div><br><br clear="all"><br>-- <br>Regards,<br><br>Sudarshan Bisht<br>