<html dir="ltr"> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <style id="owaParaStyle" type="text/css">P {margin-top:0;margin-bottom:0;}</style> </head> <body ocsi="0" fpstyle="1"> <div style="direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;">Hello, I'm trying to implement a pipeline which can encode a video stream and at will, trigger the display of the stream without loosing frames in the encoding. So I made a application out of this prototype : gst-launch videotestsrc num-buffers=100 ! tee name="splitter" ! queue ! ffmpegcolorspace ! x264enc byte-stream=true ! avimux ! filesink location=videotestsrc.avi splitter. ! queue leaky=1 ! autovideosink With the branch : videotestsrc num-buffers=100 ! tee name="splitter" ! queue ! ffmpegcolorspace ! x264enc byte-stream=true ! avimux ! filesink location=videotestsrc.avi Created at startup and : splitter. ! queue leaky=1 ! autovideosink when an event appears. I'm able to trigger the "display branch" but I must go through the GST_STATE_READY. By doing so, I will lost frames. I've already try to create two separate bins with a ghost pad but it doesn't help. A solution that I haven't tried is to play with blocked pad. I've already read this document : <a href="http://cgit.freedesktop.org/gstreamer/gstreamer/tree/docs/design/part-block.txt" target="_blank">http://cgit.freedesktop.org/gstreamer/gstreamer/tree/docs/design/part-block.txt</a> but I'm not sure where I should block the pad to be as efficient as possible (the final solution will be embedded). Is it possible to plug this display toolchain to the running encoding ? Sould I create the "display queue" also on startup and blocked the pad between the splitter and this queue as long as the window is not wanted ? Thank you, Jonathan </div> </body> </html>