Hi, <div class="gmail_quote">On Sun, Oct 17, 2010 at 5:26 PM, David Klasinc <<a href="mailto:bigwhale@lubica.net">bigwhale@lubica.net</a>> wrote: <blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"> Greetings, if someone could shed some light on this. I am trying to capture my screen and record audio from pulse or alsa source. I am working on python application and I get the same behavior in python app and if I use gst-launch. Here's the command line I use: gst-launch ximagesrc endx=1680 endy=1050 use-damage=false \ show-pointer=true ! videorate ! video/x-raw-rgb,framerate=25/1 ! \ ffmpegcolorspace ! queue ! schroenc rate-control=lossless ! queue ! \ mux. pulsesrc ! audio/x-raw-int ! audiorate ! \ audio/x-raw-int,rate=44100 ! flacenc ! queue ! mux. matroskamux \ name=mux ! queue ! filesink location="test.mkv" No matter what codecs I used for audio or video and no matter what compression level I tried, I always ended up with the error: WARNING: from element /GstPipeline:pipeline0/GstPulseSrc:pulsesrc0: Can't record audio fast enough gstbaseaudiosrc.c(822): gst_base_audio_src_create (): /GstPipeline:pipeline0/GstPulseSrc:pulsesrc0: Dropped 1054240 samples. This is most likely because downstream can't keep up and is consuming samples too slowly. </blockquote><div> If the message appears only a few times at the beginning of the recording operation it's not something I would worry about. Basically, during the initialisation phase of the elements in the pipeline, load may increase and pulsesrc may see high latencies in the source element for a while. If instead the message is continuous you may try reducing the overall CPU load by e.g. increasing the output bitrates of the encoders. Regards </div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"> I even tried recording raw data and muxing it into avimux and I got the same problems. Tried on several different machines. If my endx and endy parameters to were lower than everything was working as it should. So, my question is this a global performance issue? I can't capture 1680x1050 video and audio at the same time? Or is something wrong with my command line? Regards, David ------------------------------------------------------------------------------ Download new Adobe(R) Flash(R) Builder(TM) 4 The new Adobe(R) Flex(R) 4 and Flash(R) Builder(TM) 4 (formerly Flex(R) Builder(TM)) enable the development of rich applications that run across multiple browsers and platforms. Download your free trials today! <a href="http://p.sf.net/sfu/adobe-dev2dev" target="_blank">http://p.sf.net/sfu/adobe-dev2dev</a> _______________________________________________ gstreamer-devel mailing list <a href="mailto:gstreamer-devel@lists.sourceforge.net">gstreamer-devel@lists.sourceforge.net</a> <a href="https://lists.sourceforge.net/lists/listinfo/gstreamer-devel" target="_blank">https://lists.sourceforge.net/lists/listinfo/gstreamer-devel</a> </blockquote></div>