<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html; charset=ISO-8859-1" http-equiv="Content-Type"> </head> <body bgcolor="#ffffff" text="#000000"> <meta content="text/html; charset=ISO-8859-1" http-equiv="Content-Type"> Hi,         I agree with h264parse can complete h264 frames.         Before starting gstreamer pipeline, I'll negotiates the video resolution. Thats not a problem.                The reason, I'm receiving complete h264 frames before pushing to h264parse is, another display         application using ffmpeg is displaying the live stream. Display application uses the completed         frames for  displaying.         My problem is with dummy frames written into avi file. On 07/15/2010 11:36 AM, sudarshan bisht wrote: <blockquote cite="mid:AANLkTilP0fh0c-coeWFREuQI-IusvNrkdX2RFct4UG_e@mail.gmail.com" type="cite"> <div> Hi , </div> <div> </div> <div>  </div> <div>  You are setting caps 800x600 in caps but you output shows 1280x720 ?? </div> <div>    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>  </div> <div class="gmail_quote">On Thu, Jul 15, 2010 at 11:15 AM, Prabhulinga Swamy B S <<a moz-do-not-send="true" href="http://prabhulingaswamy.bs">prabhulingaswamy.bs</a>@<a moz-do-not-send="true" href="http://globaledgesoft.com">globaledgesoft.com</a>> wrote: <blockquote style="border-left: 1px solid rgb(204, 204, 204); margin: 0px 0px 0px 0.8ex; padding-left: 1ex;" class="gmail_quote">hi Sandeep,      thank you for your reply.     Yes, I'm sure of receiving 30 fps from the network. After completely receiving     the frame, I'm incrementing frame count.     What I mean about the duplicate frames is, after every valid frame in the resulting     video file, there is a duplicate and empty frame.     The fallowing output can clear your doubt. prabhu@prabhu:avi $ ffmpeg -v 5 -i sample.avi -f null - Input #0, avi, from 'sample.avi':   Duration: 00:00:00.00, start: 0.000000, bitrate: -2147483 kb/s     Stream #0.0, 1/60: Video: h264, yuv420p, 1280x720, 1/120, 59.94 tbr, 60 tbn, 120 tbc Output #0, null, to 'pipe:':     Stream #0.0, 1/90000: Video: rawvideo, yuv420p, 1280x720, 1001/60000, q=2-31, 200 kb/s, 90k tbn, 59.94 tbc Stream mapping:   Stream #0.0 -> #0.0   existing PPS referenced [h264 @ 0x806ed70]non-existing PPS referenced [h264 @ 0x806ed70]decode_slice_header error [h264 @ 0x806ed70]no frame! Error while decoding stream #0.0 Error while decoding stream #0.0     Last message repeated 1 times [h264 @ 0x806ed70]non-existing PPS referenced [h264 @ 0x806ed70]decode_slice_header error [h264 @ 0x806ed70]no frame! Error while decoding stream #0.0 *** 1 dup! Error while decoding stream #0.0 *** 1 dup!         .         .         . Error while decoding stream #0.0 *** 1 dup! frame=  315 fps=122 q=0.0 Lsize=      -0kB time=5.26 bitrate= -0.0kbits/s dup=315 drop=0 video:0kB audio:0kB global headers:0kB muxing overhead -inf% I've received 315 frames from the network and pushed those many frames into gstreamer pipeline. But don't know why these dummy frames are written into the file. For ex, if I receive 30MB of video data, the resulting file is also of same size, but frames count will be double the original frames. <div class="im"> On 07/14/2010 09:38 PM, Sandeep Prakash wrote: > Hi, > > > Prabhulinga Swamy B S wrote: > >>         appsrc is-live=true >> "caps=video/x-h264,width=800,height=600,framerate=30/1" ! \ >>           h264parse ! queue ! avimux ! queue ! filesink >> location=filename.avi >> >> > Are you sure the h264 stream you are getting from the network has 30 fps? > > > Prabhulinga Swamy B S wrote: > >>       But the resulting file is having duplicate frames. >>       For ex, if i push 200 frames, the resulting file contain nearly 200 >> frames. >> >> > Plz explain in detail on the above statements. What does "nearly" mean? > > Regards, > Sandeep > -- </div> </blockquote> </div> </blockquote> <pre class="moz-signature" cols="72">-- Regards, Prabhulinga Swamy B S </pre> </body> </html>