<div dir="ltr"><div dir="ltr"><div>Hi,</div><div><br></div><div>answering in-line.<br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr"></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Thank you, I try like this:<br> ges-launch-1.0 \<br> +clip ./poc_backgroup.mp4 layer=2 \<br> +clip ./poc_backgroup.mp4 inpoint=2 duration=3 layer=1 set-posx 100<br> set-posy 100 set-width 200 set-height 200 +effect "agingtv" \<br> +clip ./shoe.mp4 inpoint=7 duration=2 layer=0 set-posx 400 set-posy<br> 400 set-width 200 set-height 200 \<br> --outputuri=file:////home/qingfu.cqf/gst-poc/hi.mp4 -e<br> video/quicktime:x264enc:audio/x-opus<br> It worked fine. <br> <br> I have some other queuestion:<br> 1.How can I use nvdec for decoder?<br></blockquote><div><br></div><div>Well, you should make sure it has the highest rank so it is picked.<br></div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"> 2. I need to implement some filter between clips, such as clip 1's alpha<br> change from 255 -> 0 and clip 2's alpha change from 0 -> 255 in 3 seconds,<br> how can I do that by ges?<br></blockquote><div><br></div><div>You can interpolate the `alpha` child property of the video source, you can find an example here:</div><div><br></div><div><a href="https://github.com/cfoch/GESSamples/blob/master/interpolation/interpolation.py">https://github.com/cfoch/GESSamples/blob/master/interpolation/interpolation.py</a></div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"> 3. for appsrc:// do you have some more example? I don't understand .<br></blockquote><div><br></div><div>I do not think we have an example for that but it is doable.<br></div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"> After some tests, I find that I can't use gst_element_seek() for seek for<br> multiple input souce, <br></blockquote><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"> Maybe I can use gessrc as a gstelement to build the pipeline? such as:<br> <br> gessrc(backgroup.mp4 9-15s) -- \<br> -------------> mixer<br> -->encoder... <br> gessrc(fga.mp4 3-8s) --- /<br></blockquote><div><br></div><div>GES mixes the layers, so if I understand correctly what you are trying to do, what you want is something like:</div><div><br></div><div>```<br></div><div>ges-launch-1.0 \</div><div> +clip fga.mp4 inpoint=3.0 duration=5.0 layer=0 # foreground layer \<br></div><div> +clip background.mp4 inpoint=9.0 duration=6.0 layer=1 # background layer<br></div><div> ```</div><div><br></div><div>You will need to write a small program to replicate that timeline to be able to interpolate the alpha.<br></div><div><br></div><div>- Thibault<br></div><div><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"> Thibault Saunier-4 wrote<br> > Hi,<br> > <br> > On Sun, Aug 30, 2020 at 9:57 PM xmufzy <<br> <br> > xmufzy@<br> <br> > > wrote:<br> > <br> >> Thank you , I known it's easier with ges, but I don't known how to change<br> >> the<br> >> encoder to nvenc, and hown can I export the data from ges to app sink, or<br> >> import data from appsrc.<br> >><br> > <br> > You can check the EncodingProfile[0] API to enforce a certain encoder, on<br> > the command line you could even do for example<br> > `video/quicktime:nvenc:audio/x-opus`.<br> > <br> > You can set your sinks as you would do with `playbin` if you use<br> > GESPipeline, or you can use GESTimeline as any bin if you need more<br> > control. For appsrc you can use the `appsrc://` protocol for your clips<br> > and<br> > then work from there, or you can subclass `GES[Video|Audio]Source` to<br> > implement exactly what you need.<br> > <br> > - Thibault<br> > <br> > [0]<br> > <a href="https://gstreamer.freedesktop.org/documentation/pbutils/encoding-profile.html" rel="noreferrer" target="_blank">https://gstreamer.freedesktop.org/documentation/pbutils/encoding-profile.html</a><br> > <br> > <br> >> Nicolas Dufresne-5 wrote<br> >> > Le jeudi 27 août 2020 à 08:14 -0500, xmufzy a écrit :<br> >> >> If we can do 2 segment seek for the element<br> >> >><br> >> >><br> >> >> pipeline change :<br> >> >> filesrc(backgroup.mp4) --> qtdemux --> h264dec --> queue --\<br> >> >><br> >><br> >> >> --> mixer -->x264enc --> filesink<br> >> >> filesrc(fga.mp4) --> qtdemux --> h264dec -->queue ---------/<br> >> >><br> >> >> if I need mix fga.mp4 3~8s, and backgroup.mp4 9~14s, I try to use 2<br> >> >> gst_element_seek(SEGMENT) for that, but failed<br> >> ><br> >> > This is easier done with ges-launch-1.0 (from gst-editing-services).<br> >> ><br> >> > ges-launch-1.0 +clip background.mp4 inpoint=9.0 duration=5.0 \<br> >> > +clip fga.mp4 inpoint=3.0 duration=5.0 \<br> >> > --smart-rendering --outputuri=file:///tmp/test.mp4<br> >> ><br> >> > You can live preview the edit by removing the render options (last<br> >> > line).<br> >> ><br> >> >><br> >> >><br> >> >><br> >> >><br> >> >> --<br> >> >> Sent from: <a href="http://gstreamer-devel.966125.n4.nabble.com/" rel="noreferrer" target="_blank">http://gstreamer-devel.966125.n4.nabble.com/</a><br> >> >> _______________________________________________<br> >> >> gstreamer-devel mailing list<br> >> >><br> >><br> >> > gstreamer-devel@.freedesktop<br> >><br> >> >> <a href="https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" rel="noreferrer" target="_blank">https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a><br> >> ><br> >> > _______________________________________________<br> >> > gstreamer-devel mailing list<br> >><br> >> > gstreamer-devel@.freedesktop<br> >><br> >> > <a href="https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" rel="noreferrer" target="_blank">https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a><br> >><br> >><br> >><br> >><br> >><br> >> --<br> >> Sent from: <a href="http://gstreamer-devel.966125.n4.nabble.com/" rel="noreferrer" target="_blank">http://gstreamer-devel.966125.n4.nabble.com/</a><br> >> _______________________________________________<br> >> gstreamer-devel mailing list<br> >> <br> <br> > gstreamer-devel@.freedesktop<br> <br> >> <a href="https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" rel="noreferrer" target="_blank">https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a><br> >><br> > <br> > _______________________________________________<br> > gstreamer-devel mailing list<br> <br> > gstreamer-devel@.freedesktop<br> <br> > <a href="https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" rel="noreferrer" target="_blank">https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a><br> <br> <br> <br> <br> <br> --<br> Sent from: <a href="http://gstreamer-devel.966125.n4.nabble.com/" rel="noreferrer" target="_blank">http://gstreamer-devel.966125.n4.nabble.com/</a><br> _______________________________________________<br> gstreamer-devel mailing list<br> <a href="mailto:gstreamer-devel@lists.freedesktop.org" target="_blank">gstreamer-devel@lists.freedesktop.org</a><br> <a href="https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" rel="noreferrer" target="_blank">https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a><br> </blockquote></div></div></div>