About the GStreamer Conference - Prague, 2011: Time Shifting with GStreamer released by Fluendo available at <a href="https://core.fluendo.com/gstreamer/trac/browser/trunk/gst-fluendo-timeshift" target="_blank">https://core.fluendo.com/gstreamer/trac/browser/trunk/gst-fluendo-timeshift</a> Cheers, Fluendo Marcom Team FLUENDO Influencing the Multimedia World San Francisco, USA & Barcelona, SPAIN Contact phone: Spain: +34 933 175 153 United States: +1 415 773 5353 <a href="http://www.fluendo.com/" target="_blank">www.fluendo.com</a> Please consider the environment before printing this e-mail. <div class="gmail_quote">On Mon, Oct 31, 2011 at 6:05 PM, <<a href="mailto:gstreamer-devel-request@lists.freedesktop.org">gstreamer-devel-request@lists.freedesktop.org</a>> wrote: <blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">Send gstreamer-devel mailing list submissions to <a href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a> To subscribe or unsubscribe via the World Wide Web, visit <a href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" target="_blank">http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a> or, via email, send a message with subject or body 'help' to <a href="mailto:gstreamer-devel-request@lists.freedesktop.org">gstreamer-devel-request@lists.freedesktop.org</a> You can reach the person managing the list at <a href="mailto:gstreamer-devel-owner@lists.freedesktop.org">gstreamer-devel-owner@lists.freedesktop.org</a> When replying, please edit your Subject line so it is more specific than "Re: Contents of gstreamer-devel digest..." Today's Topics: 1. Re: Changing source without stopping pipeline (Stefan Sauer) 2. Second pre-release of GStreamer FFmpeg plugin (Edward Hervey) 3. Conference notes, slides (Josh Doe) 4. Re: Conference notes, slides (Victor Manuel J?quez Leal) 5. Re: Conference notes, slides (Nicolas Dufresne) 6. Re: Get v4l2src width and height before pipeline runs? (Kapil Agrawal) 7. Re: Invalid property's type for a controller at runtime: `G_VALUE_TYPE (value) == self->priv->type' failed (Rossana Guerra) ---------------------------------------------------------------------- Message: 1 Date: Mon, 31 Oct 2011 11:24:59 +0100 From: Stefan Sauer <<a href="mailto:ensonic@hora-obscura.de">ensonic@hora-obscura.de</a>> Subject: Re: Changing source without stopping pipeline To: <a href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a> Message-ID: <<a href="mailto:4EAE777B.6090804@hora-obscura.de">4EAE777B.6090804@hora-obscura.de</a>> Content-Type: text/plain; charset=ISO-8859-1 On 10/30/2011 03:40 AM, superlou wrote: > I have a simplified test pipeline consisting of: > v4l2src -> ffmpegcolorspace --> videoscale --> ximagesink > > I would like to detect a loss of signal from the v4lsrc (currently doing by > waiting for the EOS signal, though the v42lsrc provides better warnings on > camera disconnection if I can figure out how to get them). For now, I'm > trying to achieve the simpler case of simply switching the source element to > a videotestsrc while the pipeline is playing. > > I've read the information about pad blocking > (<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 it doesn't provide any indication on what to do for changing the source > element. I read that it may be possible to simply unlink the v4l2src, > remove it, add the videotestsrc, and link it. This sort of works in that > eventually you see the videotestsrc, but it updates the output every few > seconds (like a very slow stuttering). If I stop and play, the output is > smooth. You might want to use "videotestsrc ! capsfilter" and set the format that you use on v4l2src to videotestsrc. Stefan > I was wondering if anyone could point me towards an example or help me find > the search terms to find the proper way to change out the source element on > a playing pipeline. > > Thanks, > Louis > > -- > View this message in context: <a href="http://gstreamer-devel.966125.n4.nabble.com/Changing-source-without-stopping-pipeline-tp3952239p3952239.html" target="_blank">http://gstreamer-devel.966125.n4.nabble.com/Changing-source-without-stopping-pipeline-tp3952239p3952239.html</a> > Sent from the GStreamer-devel mailing list archive at Nabble.com. > _______________________________________________ > gstreamer-devel mailing list > <a href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a> > <a href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" target="_blank">http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a> ------------------------------ Message: 2 Date: Mon, 31 Oct 2011 12:03:54 +0100 From: Edward Hervey <<a href="mailto:bilboed@gmail.com">bilboed@gmail.com</a>> Subject: Second pre-release of GStreamer FFmpeg plugin To: "<a href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a>" <<a href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a>> Message-ID: <1320059034.15507.3.camel@deumeu> Content-Type: text/plain; charset="us-ascii" Hi all, Mea culpa for saying the release would be done during the gst conf, too much time was taken up on other items. More patches needed to go in, so here's a new pre-release. This time the window will be much smaller. Unless something critical comes up, expect release on Wednesday 2nd November. <a href="http://gstreamer.freedesktop.org/src/gst-ffmpeg/pre/gst-ffmpeg-0.10.12.3.tar.bz2" target="_blank">http://gstreamer.freedesktop.org/src/gst-ffmpeg/pre/gst-ffmpeg-0.10.12.3.tar.bz2</a> <a href="http://gstreamer.freedesktop.org/src/gst-ffmpeg/pre/gst-ffmpeg-0.10.12.3.tar.gz" target="_blank">http://gstreamer.freedesktop.org/src/gst-ffmpeg/pre/gst-ffmpeg-0.10.12.3.tar.gz</a> Bugs fixed: * 654037 - gst-ffmpeg enables GPL parts in ffmpeg/libav * 661417 - G722 encoder is broken Edward ------------------------------ Message: 3 Date: Mon, 31 Oct 2011 09:26:11 -0400 From: Josh Doe <<a href="mailto:josh@joshdoe.com">josh@joshdoe.com</a>> Subject: Conference notes, slides To: Discussion of the development of and with GStreamer <<a href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a>> Message-ID: <CAJnipd7QXAbo4fANcPYKwVb4q6Pg=YRk96xCmD1ubn=<a href="mailto:d2RywVg@mail.gmail.com">d2RywVg@mail.gmail.com</a>> Content-Type: text/plain; charset=ISO-8859-1 I'm kind of surprised there's been no mention of the conference on this list; I was hoping to go, but was unable to in the end, however I am very interested in the talks that were given. I've found hardly anything online, and certainly no slides yet. I know from Christian's post that Ubicast should have videos online within a month: <a href="http://blogs.gnome.org/uraeus/2011/10/29/back-from-gstreamer-conference-in-prague/" target="_blank">http://blogs.gnome.org/uraeus/2011/10/29/back-from-gstreamer-conference-in-prague/</a> Aside from a few tweets that didn't contain much information, I found some demo videos from Guillame Emont's stabilisation talk: <a href="http://emont.org/stabilisation-demo/" target="_blank">http://emont.org/stabilisation-demo/</a> And Fluendo's press release on the Time Shifting talk: <a href="http://www.fluendo.com/press/fluendo-gstreamer-time-shifting-element/" target="_blank">http://www.fluendo.com/press/fluendo-gstreamer-time-shifting-element/</a> Any more? Perhaps we can compile these links and others in a page like <a href="http://gstreamer.freedesktop.org/wiki/GStreamerConference2010" target="_blank">http://gstreamer.freedesktop.org/wiki/GStreamerConference2010</a> -Josh ------------------------------ Message: 4 Date: Mon, 31 Oct 2011 15:19:57 +0100 From: Victor Manuel J?quez Leal <<a href="mailto:ceyusa@gmail.com">ceyusa@gmail.com</a>> Subject: Re: Conference notes, slides To: Discussion of the development of and with GStreamer <<a href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a>> Message-ID: <CAG6h3__==<a href="mailto:Fn5jB6XT-E91L944AJ2wgnpymJ423_2kFXHzCoUMw@mail.gmail.com">Fn5jB6XT-E91L944AJ2wgnpymJ423_2kFXHzCoUMw@mail.gmail.com</a>> Content-Type: text/plain; charset=ISO-8859-1 On Mon, Oct 31, 2011 at 2:26 PM, Josh Doe <<a href="mailto:josh@joshdoe.com">josh@joshdoe.com</a>> wrote: > I'm kind of surprised there's been no mention of the conference on > this list; I was hoping to go, but was unable to in the end, however I > am very interested in the talks that were given. Mine are here <a href="https://gitorious.org/vjaquez-misc/syslink-talk/trees/master" target="_blank">https://gitorious.org/vjaquez-misc/syslink-talk/trees/master</a> But perhaps I should put the PDF in a simple HTTP server vmjl > > I've found hardly anything online, and certainly no slides yet. I know > from Christian's post that Ubicast should have videos online within a > month: > <a href="http://blogs.gnome.org/uraeus/2011/10/29/back-from-gstreamer-conference-in-prague/" target="_blank">http://blogs.gnome.org/uraeus/2011/10/29/back-from-gstreamer-conference-in-prague/</a> > > Aside from a few tweets that didn't contain much information, I found > some demo videos from Guillame Emont's stabilisation talk: > <a href="http://emont.org/stabilisation-demo/" target="_blank">http://emont.org/stabilisation-demo/</a> > > And Fluendo's press release on the Time Shifting talk: > <a href="http://www.fluendo.com/press/fluendo-gstreamer-time-shifting-element/" target="_blank">http://www.fluendo.com/press/fluendo-gstreamer-time-shifting-element/</a> > > Any more? Perhaps we can compile these links and others in a page like > <a href="http://gstreamer.freedesktop.org/wiki/GStreamerConference2010" target="_blank">http://gstreamer.freedesktop.org/wiki/GStreamerConference2010</a> > > -Josh > _______________________________________________ > gstreamer-devel mailing list > <a href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a> > <a href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" target="_blank">http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a> > ------------------------------ Message: 5 Date: Mon, 31 Oct 2011 10:46:29 -0400 From: Nicolas Dufresne <<a href="mailto:nicolas.dufresne@collabora.co.uk">nicolas.dufresne@collabora.co.uk</a>> Subject: Re: Conference notes, slides To: Discussion of the development of and with GStreamer <<a href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a>> Message-ID: <1320072389.4543.6.camel@macbookpro> Content-Type: text/plain; charset="utf-8" There is couple of video here <a href="http://gstconf.ubicast.tv/channels/#conferences2010" target="_blank">http://gstconf.ubicast.tv/channels/#conferences2010</a> enjoy, Nicolas -------------- next part -------------- An HTML attachment was scrubbed... URL: <<a href="http://lists.freedesktop.org/archives/gstreamer-devel/attachments/20111031/3ff188aa/attachment-0001.htm" target="_blank">http://lists.freedesktop.org/archives/gstreamer-devel/attachments/20111031/3ff188aa/attachment-0001.htm</a>> ------------------------------ Message: 6 Date: Mon, 31 Oct 2011 22:30:38 +0530 From: Kapil Agrawal <<a href="mailto:kapil.agl@gmail.com">kapil.agl@gmail.com</a>> Subject: Re: Get v4l2src width and height before pipeline runs? To: Discussion of the development of and with GStreamer <<a href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a>> Message-ID: <<a href="mailto:CADK2-S5sKEAwyNbefbwtUcW5BG89Jt5ikwA-dYqEUNdzmXd0GQ@mail.gmail.com">CADK2-S5sKEAwyNbefbwtUcW5BG89Jt5ikwA-dYqEUNdzmXd0GQ@mail.gmail.com</a>> Content-Type: text/plain; charset="iso-8859-1" Just a thought, may not be realted to this specific issue of yours Writing your own gstreamer plugin to do image processing stuff would make it more cleaner and better. like v4l2src ! ffmpegcolorspace ! your_image_processing_plugin ! xvimagesink ? Best - Kapil On Sat, Oct 29, 2011 at 2:23 AM, wally_bkg <<a href="mailto:wb666greene@gmail.com">wb666greene@gmail.com</a>> wrote: > > Edward Hervey wrote: > > > > Why aren't you using the v4l2src/v4l2sink elements ? If you have > > issues with them, please explain it in detail and/or file a bug report. > > > > I have vrl2src elements at the start of my pipeline that ends with an > appsink, this worked fine with fixed video frame sizes, but now that I've > removed that restriction in the image processing algorithm the question is > how do I get the frame size from v4l2 without setting the pipeline to > playing? > > I've had lots of issues with the gstreamer v4l2src tuner interface and > never > could get it to reliably set the norm and select the input across the > various v4l2 capture devices on hand. As to bug reports, the answer was > always to try a newer version, but when I tried the Ubuntu 10.04 gstreamer > PPA it broke all things multimedia and wasted a fair amount of time > recovering. At that point it became easier to just use v4l2 calls to set > the norm and select the input, then build the pipeline. > > Grossly simplified my code is > > V4l2src->ffmpegcolorspace->fixed caps filter->appsink > duplicate the appsink buffer data > do some image processing on the duplicated buffer data > appsrc->xvimagesink (for realtime viewing, of the processed data) > appsrc->mp4 encoding->filesink ( original data to allow non-realtime > processing afterwards) > > Works quite well with fixed caps. I'm stuck on how to get the frame height > and width without fixed caps before the pipeline runs. I have to build a > bunch of tables that depend on the frame size and takes a couple of seconds > to do (perhaps not the most efficient recursive code, but it only runs > once). > > I could work around this by pre-building tables of the possibilities > (640x480, 704x480, & 720x480 so far, depending on the capture device, fixed > caps was just set to 640x480) but the real issue is I'd like the v4l2 > timestamps from the driver to use to synchronize A/D data from another > process running on the same machine. I asked about this earlier but got no > response: > > > <a href="http://gstreamer-devel.966125.n4.nabble.com/Getting-V4l2-timestamps-from-v4l2src-td3915764.html" target="_blank">http://gstreamer-devel.966125.n4.nabble.com/Getting-V4l2-timestamps-from-v4l2src-td3915764.html</a> > > Dealing with various frame sizes is at this point only needed to test my > changes (which I quickly did by changing the fixed caps to match the > different capture card possibilities) in anticipation of someday using HD > video. The timestamps to synchronize the A/D data with the video is an > action item. > > > > -- > View this message in context: > <a href="http://gstreamer-devel.966125.n4.nabble.com/Get-v4l2src-width-and-height-before-pipeline-runs-tp3942212p3949188.html" target="_blank">http://gstreamer-devel.966125.n4.nabble.com/Get-v4l2src-width-and-height-before-pipeline-runs-tp3942212p3949188.html</a> > Sent from the GStreamer-devel mailing list archive at Nabble.com. > _______________________________________________ > gstreamer-devel mailing list > <a href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a> > <a href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" target="_blank">http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a> > -- <a href="http://www.linkedin.com/in/kapilagrawal" target="_blank">http://www.linkedin.com/in/kapilagrawal</a> <a href="http://www.mediamagictechnologies.com" target="_blank">www.mediamagictechnologies.com</a> (Consultancy - Multimedia, Gstreamer, ffmpeg, Streaming for platforms- linux, windows, TI, android) -------------- next part -------------- An HTML attachment was scrubbed... URL: <<a href="http://lists.freedesktop.org/archives/gstreamer-devel/attachments/20111031/3e014580/attachment-0001.htm" target="_blank">http://lists.freedesktop.org/archives/gstreamer-devel/attachments/20111031/3e014580/attachment-0001.htm</a>> ------------------------------ Message: 7 Date: Mon, 31 Oct 2011 15:05:29 -0200 From: Rossana Guerra <<a href="mailto:guerra.rossana@gmail.com">guerra.rossana@gmail.com</a>> Subject: Re: Invalid property's type for a controller at runtime: `G_VALUE_TYPE (value) == self->priv->type' failed To: Discussion of the development of and with GStreamer <<a href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a>> Message-ID: <<a href="mailto:CAAMjx-ddGAKxdgXCtHGh4v__LR9ocXmv6Mx7FJo-S8S4XfigJg@mail.gmail.com">CAAMjx-ddGAKxdgXCtHGh4v__LR9ocXmv6Mx7FJo-S8S4XfigJg@mail.gmail.com</a>> Content-Type: text/plain; charset="utf-8" thanks for response, it helps me a lot. In fact I need audio as well, I'll work around it, at least with one file. Regards, Rossana 2011/10/31 Stefan Sauer <<a href="mailto:ensonic@hora-obscura.de">ensonic@hora-obscura.de</a>> > ** > On 10/30/2011 02:15 AM, Rossana Guerra wrote: > > Hi Stefan, I saw and run the code. I noticed the differences, mostly in > the "on-pad-added" function. > You create a fakesink where the "flow" doesn't come from video, then you > create a bin from the parent element and got the static pad from it for > linking. I didn't get the meaning of this technique. > > > There where two distinct bugs. The first was to use src1 twice for the > pad-aaded callback if I recall right. The 2nd is that in the pad-addded > callback you get pads for audio and video. You want to terminate the > audio-pads with a fakesink and only connect the video-pads to videomixer. > If you want the adio too, you'll need to use a similar setup like > videomixer, but using adder. > > You will still need to ensure that both video-outputs are in a compatible > format for videomxer. I did not had time to analyze further. Use the > GST_DEBUG_BIN_TO_DOT_FILE to understand whats in the resulting pipeline and > where it goes wrong. > > Stefan > > > I have an "internal data flow error" message. Here's the output when I run > with debug option as you pointed out. > > Debug information: > > rossana@Studio:~/CodeBlocks/ctrl/bin/Debug$ GST_DEBUG="*:2" ./ctrl > "/home/rossana/video1.avi" "/home/rossana/video2.avi" > Inicio... > Creando... > Creando pipeline... > Creando 1... > Playing... > Dynamic pad created: video/x-raw-rgb > ... linking video > Dynamic pad created: audio/x-raw-int > ... dropping audio > 0:00:00.064628890 4083 0x157f070 > WARN basetransform > gstbasetransform.c:1211:gst_base_transform_setcaps:<alfa1> transform could > not transform video/x-raw-yuv, width=(int)720, > height=(int)528, framerate=(fraction)25/1, format=(fourcc)I420, > interlaced=(boolean)false, pixel-aspect-ratio=(fraction)1/1 in anything we > support > Dynamic pad created: video/x-raw-rgb > ... linking video > Dynamic pad created: audio/x-raw-int > ... dropping audio > 0:00:00.076359290 4083 0x1545b80 > WARN ffmpeg gstffmpegdec.c:2241:gst_ffmpegdec_frame:<ffdec_mpeg40> > ffdec_mpeg4: decoding error (len: -1, have_data: 0) > > > I am trying to play 2 .avi files, I have no problem to visualize them with > Banshee or any other player, so I think I got the right codecs in my > computer. > Both videos have the same properties values: > > *Video: > > Dimension 720x528 > Codec DivX MPEG-4 Version 5 > 25 fps > bit rate: N/A > > * Sound: > Codec MPEG1 Audio, layer > Channels Stereo > Frec 44100Hz > bit rate 127 kpbs > > I'll keep trying, and thanks for your suggestions. Nice weekend. > > Rossana > > > > 2011/10/28 Rossana Guerra <<a href="mailto:guerra.rossana@gmail.com">guerra.rossana@gmail.com</a>> > >> Hi Stefan, I didn't receive the email, I even looked into the spam >> folder, just in case.... >> >> 2011/10/28 Stefan Sauer <<a href="mailto:ensonic@hora-obscura.de">ensonic@hora-obscura.de</a>> >> >>> On 10/28/2011 12:40 AM, Rossana Guerra wrote: >>> >>> Sorry Stefan, where is the code to compare with? >>> >>> I forwarded the mail to your personal address. Out mailing list tried >>> to be super smart and stipped attached *sourcecode*. >>> >>> >>> ..I downloaded the doc (pdf) and the order remains the same. >>> >>> I pushed the fix to the API docs to git. That does not regenerate the >>> pdf. To be sure which pdf exactly are you talking about? >>> >> >> >> The pdf asociated with the html file, the one that has this chapter: >> >> <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/manual/html/section-dparams-parameters.html" target="_blank">http://gstreamer.freedesktop.org/data/doc/gstreamer/head/manual/html/section-dparams-parameters.html</a> >> <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/manual/manual.pdf" target="_blank">http://gstreamer.freedesktop.org/data/doc/gstreamer/head/manual/manual.pdf</a> >> >> thanks >> >> >> >>> Stefan >>> >>> >>> Regards and thanks >>> >>> >>> 2011/10/27 Stefan Sauer <<a href="mailto:ensonic@hora-obscura.de">ensonic@hora-obscura.de</a>> >>> >>>> Hi, >>>> On 10/27/2011 01:37 AM, Rossana Guerra wrote: >>>> >>>> Well the error type disappeared, it was due where the place the >>>> gst_controller_set_control_source (ctrl, "position", GST_CONTROL_SOURCE >>>> (csource)) sentence was. >>>> The first time I did it according the documentation, at the end of the >>>> value sets of the control source. It seems it isn't the right place, I >>>> changed the sentences right after creating the controller, it seems it >>>> works. Hope it helps someone else. >>>> >>>> I fix the wrong order of calls in the docs. >>>> >>>> In this way: >>>> >>>> >>>> I made a few more fixes - compare your source and mine in a diff viewer >>>> (e.g. meld). You still need to do more stuff to ensure both sources can be >>>> mixed (run it as GST_DEBUG="*:2" ./ctrl <file1> <file2> to see the >>>> warnings). >>>> >>>> Stefan >>>> >>>> >>>> GstInterpolationControlSource * csource = >>>> gst_interpolation_control_source_new(); >>>> >>>> >>>> gst_interpolation_control_source_set_interpolation_mode(csource,GST_INTERPOLATE_LINEAR); >>>> gst_controller_set_control_source (ctrl, "position", GST_CONTROL_SOURCE >>>> (csource)); >>>> >>>> (Now the runtime is another! but one less at least) >>>> >>>> Specially thanks to Stefan! >>>> >>>> >>>> Here is the complete code: >>>> >>>> #include <gst.h> >>>> #include <controller/gstcontroller.h> >>>> >>>> #include <iostream> >>>> #include <string.h> >>>> >>>> using namespace std; >>>> >>>> // Manejador de errores >>>> static gboolean bus_call (GstBus *bus, GstMessage *msg, gpointer data) >>>> { >>>> GMainLoop *loop = (GMainLoop *) data; >>>> >>>> switch (GST_MESSAGE_TYPE (msg)) >>>> { >>>> case GST_MESSAGE_EOS: >>>> g_print ("Final de stream\n"); >>>> g_main_loop_quit (loop); >>>> break; >>>> case GST_MESSAGE_ERROR: >>>> { >>>> gchar *debug; >>>> GError *error; >>>> gst_message_parse_error (msg, &error, &debug); >>>> g_free (debug); >>>> g_printerr ("Error: %s\n", error->message); >>>> g_error_free (error); >>>> g_main_loop_quit (loop); >>>> break; >>>> } >>>> default: >>>> break; >>>> } >>>> return TRUE; >>>> } >>>> >>>> static void on_pad_added (GstElement *element, GstPad *pad, gpointer >>>> data) >>>> { >>>> GstPad *sinkpad = NULL; >>>> GstElement * elemento = (GstElement *) data; >>>> >>>> >>>> /* Ahora linkeo el pad de comp con sink pad */ >>>> g_print ("Dynamic pad created, linking queue\n"); >>>> sinkpad = gst_element_get_static_pad (elemento, "sink"); >>>> >>>> >>>> gst_pad_link (pad, sinkpad); >>>> gst_object_unref(sinkpad); >>>> >>>> } >>>> >>>> int main(int argc, char *argv[]) >>>> { >>>> >>>> GMainLoop *loop = NULL; >>>> >>>> GstElement *src1, *src2,*dec1,*dec2,*alfa1,*color,*smpte,*queue,*sink; >>>> GstBus *bus; >>>> >>>> gdouble duracion = 500.0; >>>> gint transicion = 1; >>>> >>>> cout << "Inicio..." << endl; >>>> >>>> /* init GStreamer */ >>>> gst_init (&argc, &argv); >>>> bool iniciado = gst_controller_init (&argc, &argv); >>>> >>>> loop = g_main_loop_new (NULL, FALSE); >>>> //gint transicion = 1; >>>> >>>> /* make sure we have input */ >>>> if (argc != 3) { >>>> g_print ("Usage: %s <filename1> <filename2>\n", argv[0]); >>>> return -1; >>>> } >>>> >>>> cout << "Creando..." << endl; >>>> src1 = gst_element_factory_make("filesrc", "src1"); >>>> g_object_set(G_OBJECT(src1),"location",argv[1], NULL); >>>> >>>> src2 = gst_element_factory_make("filesrc", "src2"); >>>> g_object_set(G_OBJECT(src1),"location",argv[2], NULL); >>>> >>>> GstElement *pipeline = gst_pipeline_new ("video-player"); >>>> >>>> dec1 = gst_element_factory_make("decodebin2","dec1"); >>>> >>>> dec2 = gst_element_factory_make("decodebin2","dec2"); >>>> >>>> cout << "Creando pipeline..." << endl; >>>> >>>> bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline)); >>>> gst_bus_add_watch (bus, bus_call, loop); >>>> gst_object_unref (bus); >>>> >>>> alfa1 = gst_element_factory_make ("alpha","alfa1"); >>>> smpte = gst_element_factory_make ("smptealpha","smpte"); >>>> g_object_set(smpte,"type", transicion, NULL); >>>> color = gst_element_factory_make ("ffmpegcolorspace", "color"); >>>> GstElement * mixer = gst_element_factory_make("videomixer", "mixer"); >>>> >>>> if ((!alfa1) || (!smpte) || (!color) || (!mixer)) >>>> { >>>> g_printerr ("Alguno de los elementos del Bin no pudo ser creado. >>>> Saliendo\n"); >>>> return 0; >>>> } >>>> >>>> >>>> cout << "Creando 1..." << endl; >>>> >>>> // Agrego Controlador >>>> >>>> GstController * ctrl = gst_object_control_properties(G_OBJECT(smpte), >>>> "position",NULL); >>>> >>>> if (ctrl == NULL) >>>> { >>>> GST_WARNING ("No puede controlar el elemento fuente\n"); >>>> return 1; >>>> } >>>> >>>> // Todo valor GValue debe inicializarse en 0 >>>> GValue val_double = { 0, }; >>>> g_value_init (&val_double, G_TYPE_DOUBLE); >>>> >>>> // Creo la fuente al controlador y la asocio al controlador >>>> // Seteo modo de interpolacion >>>> >>>> GstInterpolationControlSource * csource = >>>> gst_interpolation_control_source_new(); >>>> >>>> >>>> gst_interpolation_control_source_set_interpolation_mode(csource,GST_INTERPOLATE_LINEAR); >>>> gst_controller_set_control_source (ctrl, "position", >>>> GST_CONTROL_SOURCE (csource)); >>>> >>>> // Seteo primer valor >>>> g_value_set_double(&val_double, 0.0); >>>> gst_interpolation_control_source_set(csource,(0 * >>>> GST_MSECOND),&val_double); >>>> >>>> // Seteo segundo valor >>>> g_value_set_double(&val_double, 1.0); >>>> >>>> gst_interpolation_control_source_set(csource,(duracion*GST_MSECOND),&val_double); >>>> >>>> //gst_controller_set_control_source (ctrl, "position", >>>> GST_CONTROL_SOURCE (csource)); >>>> >>>> g_object_unref (csource); >>>> g_value_unset (&val_double); >>>> >>>> g_signal_connect (G_OBJECT (dec1), "pad-added", G_CALLBACK >>>> (on_pad_added),alfa1); >>>> g_signal_connect (G_OBJECT (dec2), "pad-added", G_CALLBACK >>>> (on_pad_added),smpte); >>>> >>>> queue = gst_element_factory_make("queue", "queue"); >>>> sink = gst_element_factory_make("autovideosink", "sink"); >>>> >>>> gst_bin_add_many (GST_BIN (pipeline),src1, src2, dec1, dec2, alfa1, >>>> smpte, mixer, queue, color, sink, NULL); >>>> >>>> gst_element_link (src1,dec1); >>>> gst_element_link (src2,dec2); >>>> gst_element_link (alfa1,mixer); >>>> gst_element_link (smpte,mixer); >>>> gst_element_link (mixer,queue); >>>> gst_element_link (queue,sink); >>>> >>>> >>>> /* now run */ >>>> gst_element_set_state (pipeline, GST_STATE_PLAYING); >>>> cout << "Playing..." << endl; >>>> g_main_loop_run (loop); >>>> >>>> /* also clean up */ >>>> gst_element_set_state (pipeline, GST_STATE_NULL); >>>> gst_object_unref (GST_OBJECT (pipeline)); >>>> >>>> return 0; >>>> } >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> 2011/10/26 Rossana Guerra <<a href="mailto:guerra.rossana@gmail.com">guerra.rossana@gmail.com</a>> >>>> >>>>> Sorry, I had some copy/paste errors. Here's the code, the runtime >>>>> error is: >>>>> >>>>> CRITICAL **: gst_interpolation_control_source_set: assertion >>>>> `G_VALUE_TYPE (value) == self->priv->type' failed. >>>>> >>>>> I changed the duracion value variable unit to second (replacing 500 >>>>> with 5), and I tryed with GST_SECOND insted, but it didn't work. >>>>> So I wrote it back to GST_MSECOND. >>>>> >>>>> The code ?without" typing errors: >>>>> >>>>> >>>>> #include <gst.h> >>>>> #include <controller/gstcontroller.h> >>>>> >>>>> #include <iostream> >>>>> #include <string.h> >>>>> >>>>> >>>>> using namespace std; >>>>> >>>>> // Manejador de errores >>>>> >>>>> static gboolean bus_call (GstBus *bus, GstMessage *msg, gpointer data) >>>>> { >>>>> GMainLoop *loop = (GMainLoop *) data; >>>>> >>>>> switch (GST_MESSAGE_TYPE (msg)) >>>>> { >>>>> case GST_MESSAGE_EOS: >>>>> g_print ("Final de stream\n"); >>>>> g_main_loop_quit (loop); >>>>> break; >>>>> case GST_MESSAGE_ERROR: >>>>> { >>>>> gchar *debug; >>>>> GError *error; >>>>> gst_message_parse_error (msg, &error, &debug); >>>>> g_free (debug); >>>>> g_printerr ("Error: %s\n", error->message); >>>>> g_error_free (error); >>>>> g_main_loop_quit (loop); >>>>> break; >>>>> } >>>>> default: >>>>> break; >>>>> } >>>>> return TRUE; >>>>> } >>>>> >>>>> static void on_pad_added (GstElement *element, GstPad *pad, gpointer >>>>> data) >>>>> { >>>>> GstPad *sinkpad = NULL; >>>>> GstElement * elemento = (GstElement *) data; >>>>> >>>>> >>>>> /* Ahora linkeo el pad de comp con sink pad */ >>>>> g_print ("Dynamic pad created, linking queue\n"); >>>>> sinkpad = gst_element_get_static_pad (elemento, "sink"); >>>>> >>>>> >>>>> gst_pad_link (pad, sinkpad); >>>>> gst_object_unref(sinkpad); >>>>> >>>>> } >>>>> >>>>> >>>>> int main(int argc, char *argv[]) >>>>> { >>>>> >>>>> GMainLoop *loop = NULL; >>>>> >>>>> GstElement *src1, >>>>> *src2,*dec1,*dec2,*alfa1,*color,*smpte,*queue,*sink; >>>>> GstBus *bus; >>>>> >>>>> guint duracion = 500; >>>>> gint transicion = 1; >>>>> >>>>> cout << "Inicio..." << endl; >>>>> >>>>> >>>>> /* init GStreamer */ >>>>> gst_init (&argc, &argv); >>>>> bool iniciado = gst_controller_init (&argc, &argv); >>>>> >>>>> loop = g_main_loop_new (NULL, FALSE); >>>>> >>>>> if (argc != 3) { >>>>> g_print ("Usage: %s <filename1> <filename2>\n", argv[0]); >>>>> return -1; >>>>> } >>>>> >>>>> cout << "Creando..." << endl; >>>>> >>>>> src1 = gst_element_factory_make("filesrc", "src1"); >>>>> g_object_set(G_OBJECT(src1),"location",argv[1], NULL); >>>>> >>>>> src2 = gst_element_factory_make("filesrc", "src2"); >>>>> g_object_set(G_OBJECT(src1),"location",argv[2], NULL); >>>>> >>>>> GstElement *pipeline = gst_pipeline_new ("video-player"); >>>>> >>>>> dec1 = gst_element_factory_make("decodebin2","dec1"); >>>>> >>>>> dec2 = gst_element_factory_make("decodebin2","dec2"); >>>>> >>>>> cout << "Creando pipeline..." << endl; >>>>> >>>>> bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline)); >>>>> gst_bus_add_watch (bus, bus_call, loop); >>>>> gst_object_unref (bus); >>>>> >>>>> alfa1 = gst_element_factory_make ("alpha","alfa1"); >>>>> smpte = gst_element_factory_make ("smptealpha","smpte"); >>>>> g_object_set(smpte,"type", transicion, NULL); >>>>> color = gst_element_factory_make ("ffmpegcolorspace", "color"); >>>>> GstElement * mixer = gst_element_factory_make("videomixer", >>>>> "mixer"); >>>>> >>>>> if ((!alfa1) || (!smpte) || (!color) || (!mixer)) >>>>> { >>>>> g_printerr ("Alguno de los elementos del Bin no pudo ser creado. >>>>> Saliendo\n"); >>>>> return 0; >>>>> } >>>>> >>>>> >>>>> // Agrego Controlador >>>>> >>>>> >>>>> GstController * ctrl = >>>>> gst_object_control_properties(G_OBJECT(smpte), "position",NULL); >>>>> >>>>> if (ctrl == NULL) >>>>> { >>>>> GST_WARNING ("No puede controlar el elemento fuente\n"); >>>>> return 1; >>>>> } >>>>> >>>>> // Todo valor GValue debe inicializarse en 0 >>>>> GValue val_int = { 0, }; >>>>> g_value_init (&val_int, G_TYPE_INT); >>>>> >>>>> >>>>> // Set interpolation mode >>>>> >>>>> GstInterpolationControlSource * csource = >>>>> gst_interpolation_control_source_new(); >>>>> >>>>> >>>>> gst_interpolation_control_source_set_interpolation_mode(csource,GST_INTERPOLATE_LINEAR); >>>>> >>>>> // Seteo primer valor >>>>> g_value_set_int(&val_int, 0); >>>>> gst_interpolation_control_source_set(csource,(0 * >>>>> GST_MSECOND),&val_int); >>>>> >>>>> // Seteo segundo valor >>>>> g_value_set_int (&val_int, 1); >>>>> >>>>> gst_interpolation_control_source_set(csource,(duracion*GST_MSECOND),&val_int); >>>>> >>>>> >>>>> >>>>> gst_controller_set_control_source (ctrl, "position", >>>>> GST_CONTROL_SOURCE (csource)); >>>>> >>>>> g_object_unref (csource); >>>>> g_value_unset (&val_int); >>>>> >>>>> >>>>> g_signal_connect (G_OBJECT (dec1), "pad-added", G_CALLBACK >>>>> (on_pad_added),alfa1); >>>>> g_signal_connect (G_OBJECT (dec2), "pad-added", G_CALLBACK >>>>> (on_pad_added),smpte); >>>>> >>>>> queue = gst_element_factory_make("queue", "queue"); >>>>> sink = gst_element_factory_make("autovideosink", "sink"); >>>>> >>>>> gst_bin_add_many (GST_BIN (pipeline),src1, src2, dec1, dec2, alfa1, >>>>> smpte, mixer, queue, color, sink, NULL); >>>>> >>>>> gst_element_link (src1,dec1); >>>>> gst_element_link (src2,dec2); >>>>> gst_element_link (alfa1,mixer); >>>>> gst_element_link (smpte,mixer); >>>>> gst_element_link (mixer,queue); >>>>> gst_element_link (queue,sink); >>>>> >>>>> >>>>> /* now run */ >>>>> gst_element_set_state (pipeline, GST_STATE_PLAYING); >>>>> cout << "Playing..." << endl; >>>>> g_main_loop_run (loop); >>>>> >>>>> /* also clean up */ >>>>> gst_element_set_state (pipeline, GST_STATE_NULL); >>>>> gst_object_unref (GST_OBJECT (pipeline)); >>>>> >>>>> return 0; >>>>> } >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> 2011/10/26 Rossana Guerra <<a href="mailto:guerra.rossana@gmail.com">guerra.rossana@gmail.com</a>> >>>>> >>>>>> Where it says guint duration = 500.0 it should say guint duration = >>>>>> 500. Nonetheless, the error persists. >>>>>> >>>>>> >>>>>> 2011/10/26 Rossana Guerra <<a href="mailto:guerra.rossana@gmail.com">guerra.rossana@gmail.com</a>> >>>>>> >>>>>>> HI Stefan, thanks for your help, I changed the variable type from >>>>>>> gdouble to guint, same error. >>>>>>> >>>>>>> Here's the whole code example: >>>>>>> >>>>>>> >>>>>>> #include <gst.h> >>>>>>> #include <controller/gstcontroller.h> >>>>>>> #include <iostream> >>>>>>> >>>>>>> >>>>>>> using namespace std; >>>>>>> >>>>>>> // Error handler >>>>>>> static gboolean bus_call (GstBus *bus, GstMessage *msg, gpointer >>>>>>> data) >>>>>>> { >>>>>>> GMainLoop *loop = (GMainLoop *) data; >>>>>>> >>>>>>> switch (GST_MESSAGE_TYPE (msg)) >>>>>>> { >>>>>>> case GST_MESSAGE_EOS: >>>>>>> g_print ("Final de stream\n"); >>>>>>> g_main_loop_quit (loop); >>>>>>> break; >>>>>>> case GST_MESSAGE_ERROR: >>>>>>> { >>>>>>> gchar *debug; >>>>>>> GError *error; >>>>>>> gst_message_parse_error (msg, &error, &debug); >>>>>>> g_free (debug); >>>>>>> g_printerr ("Error: %s\n", error->message); >>>>>>> g_error_free (error); >>>>>>> g_main_loop_quit (loop); >>>>>>> break; >>>>>>> } >>>>>>> default: >>>>>>> break; >>>>>>> } >>>>>>> return TRUE; >>>>>>> } >>>>>>> >>>>>>> static void on_pad_added (GstElement *element, GstPad *pad, >>>>>>> gpointer data) >>>>>>> { >>>>>>> GstPad *sinkpad = NULL; >>>>>>> GstElement * elemento = (GstElement *) data; >>>>>>> >>>>>>> >>>>>>> /* Ahora linkeo el pad de comp con sink pad */ >>>>>>> g_print ("Dynamic pad created, linking queue\n"); >>>>>>> sinkpad = gst_element_get_static_pad (elemento, "sink"); >>>>>>> >>>>>>> >>>>>>> gst_pad_link (pad, sinkpad); >>>>>>> gst_object_unref(sinkpad); >>>>>>> >>>>>>> } >>>>>>> >>>>>>> >>>>>>> int main(int argc, char *argv[]) >>>>>>> { >>>>>>> >>>>>>> GMainLoop *loop = NULL; >>>>>>> >>>>>>> GstElement *src1, >>>>>>> *src2,*dec1,*dec2,*alfa1,*color,*smpte,*queue,*sink; >>>>>>> GstBus *bus; >>>>>>> >>>>>>> guint duracion = 500.0; >>>>>>> guint transicion = 1; >>>>>>> >>>>>>> >>>>>>> /* init GStreamer */ >>>>>>> gst_init (&argc, &argv); >>>>>>> bool iniciado = gst_controller_init (&argc, &argv); >>>>>>> >>>>>>> >>>>>>> >>>>>>> loop = g_main_loop_new (NULL, FALSE); >>>>>>> >>>>>>> /* make sure we have input */ >>>>>>> if (argc != 3) { >>>>>>> g_print ("Usage: %s <filename1> <filename2>\n", argv[0]); >>>>>>> return -1; >>>>>>> } >>>>>>> >>>>>>> src1 = gst_element_factory_make("filesrc", "src1"); >>>>>>> g_object_set(G_OBJECT(src1),"location",argv[1], NULL); >>>>>>> >>>>>>> src2 = gst_element_factory_make("filesrc", "src2"); >>>>>>> g_object_set(G_OBJECT(src1),"location",argv[2], NULL); >>>>>>> >>>>>>> GstElement *pipeline = gst_pipeline_new ("video-player"); >>>>>>> >>>>>>> dec1 = gst_element_factory_make("decodebin2","dec1"); >>>>>>> >>>>>>> dec2 = gst_element_factory_make("decodebin2","dec2"); >>>>>>> >>>>>>> cout << "Creando pipeline..." << endl; >>>>>>> >>>>>>> bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline)); >>>>>>> gst_bus_add_watch (bus, bus_call, loop); >>>>>>> gst_object_unref (bus); >>>>>>> >>>>>>> alfa1 = gst_element_factory_make ("alpha","alfa1"); >>>>>>> smpte = gst_element_factory_make ("smptealpha","smpte"); >>>>>>> g_object_set(smpte,"type", transicion, NULL); >>>>>>> color = gst_element_factory_make ("ffmpegcolorspace", "color"); >>>>>>> GstElement * mixer = gst_element_factory_make("videomixer", >>>>>>> "mixer"); >>>>>>> >>>>>>> if ((!alfa1) || (!smpte) || (!color) || (!mixer)) >>>>>>> { >>>>>>> g_printerr ("Alguno de los elementos del Bin no pudo ser >>>>>>> creado. Saliendo\n"); >>>>>>> return 0; >>>>>>> } >>>>>>> >>>>>>> >>>>>>> // Controller creation >>>>>>> >>>>>>> >>>>>>> GstController * ctrl = >>>>>>> gst_object_control_properties(G_OBJECT(smpte), "position",NULL); >>>>>>> >>>>>>> if (ctrl == NULL) >>>>>>> { >>>>>>> GST_WARNING ("No puede controlar el elemento fuente\n"); >>>>>>> return 1; >>>>>>> } >>>>>>> >>>>>>> // Todo valor GValue debe inicializarse en 0 >>>>>>> GValue val_double = { 0, }; >>>>>>> g_value_init (&val_double, G_TYPE_DOUBLE); >>>>>>> >>>>>>> // Set interpolation mode >>>>>>> >>>>>>> >>>>>>> GstInterpolationControlSource * csource = >>>>>>> gst_interpolation_control_source_new(); >>>>>>> >>>>>>> >>>>>>> gst_interpolation_control_source_set_interpolation_mode(csource,GST_INTERPOLATE_LINEAR); >>>>>>> >>>>>>> // Seteo primer valor >>>>>>> g_value_set_double(&val_double, 0.0); >>>>>>> gst_interpolation_control_source_set(csource,(0 * >>>>>>> GST_MSECOND),&val_double); >>>>>>> >>>>>>> // Seteo segundo valor >>>>>>> g_value_set_double (&val_double, 1.0); >>>>>>> >>>>>>> gst_interpolation_control_source_set(csource,(duracion*GST_MSECOND),&val_double); >>>>>>> >>>>>>> gst_controller_set_control_source (ctrl, "position", >>>>>>> GST_CONTROL_SOURCE (csource)); >>>>>>> >>>>>>> g_object_unref (csource); >>>>>>> g_value_unset (&val_double); >>>>>>> >>>>>>> g_signal_connect (G_OBJECT (dec1), "pad-added", G_CALLBACK >>>>>>> (on_pad_added),alfa1); >>>>>>> g_signal_connect (G_OBJECT (dec2), "pad-added", G_CALLBACK >>>>>>> (on_pad_added),smpte); >>>>>>> >>>>>>> queue = gst_element_factory_make("queue", "queue"); >>>>>>> sink = gst_element_factory_make("autovideosink", "sink"); >>>>>>> >>>>>>> gst_bin_add_many (GST_BIN (pipeline),src1, src2, dec1, dec2, >>>>>>> alfa1, smpte, mixer, queue, color, sink, NULL); >>>>>>> >>>>>>> gst_element_link (src1,dec1); >>>>>>> gst_element_link (src2,dec2); >>>>>>> gst_element_link (alfa1,mixer); >>>>>>> gst_element_link (smpte,mixer); >>>>>>> gst_element_link (mixer,queue); >>>>>>> gst_element_link (queue,sink); >>>>>>> >>>>>>> >>>>>>> /* now run */ >>>>>>> gst_element_set_state (pipeline, GST_STATE_PLAYING); >>>>>>> cout << "Playing..." << endl; >>>>>>> g_main_loop_run (loop); >>>>>>> >>>>>>> /* also clean up */ >>>>>>> gst_element_set_state (pipeline, GST_STATE_NULL); >>>>>>> gst_object_unref (GST_OBJECT (pipeline)); >>>>>>> >>>>>>> return 0; >>>>>>> >>>>>>> } >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> 2011/10/26 Stefan Sauer <<a href="mailto:ensonic@hora-obscura.de">ensonic@hora-obscura.de</a>> >>>>>>> >>>>>>>> On 10/26/2011 03:12 AM, Rossana Guerra wrote: >>>>>>>> >>>>>>>> Hi I trying to control the position property of a smptealpha element. It >>>>>>>> controls the opacity of the alpha channel, >>>>>>>> >>>>>>>> no, position controls the transition of the fade. 0.0:input1, >>>>>>>> 1.0:input2. >>>>>>>> >>>>>>>> it varies from 0.0 to 1.0. >>>>>>>> The duration of this setting is 500ms. >>>>>>>> >>>>>>>> I am working around this problem, it happens at runtime, I can't figure out >>>>>>>> what it's wrong. >>>>>>>> >>>>>>>> >>>>>>>> What is not working? The code snippet looks more of less okay. >>>>>>>> Maybe you can post a full standalone example. >>>>>>>> >>>>>>>> Stefan >>>>>>>> >>>>>>>> Thanks and regards, >>>>>>>> >>>>>>>> Rossana >>>>>>>> >>>>>>>> >>>>>>>> Here's the code; >>>>>>>> _____________ >>>>>>>> >>>>>>>> >>>>>>>> gst_interpolation_control_source_set: assertion `G_VALUE_TYPE (value) == >>>>>>>> self->priv->type' failed >>>>>>>> >>>>>>>> // Agrego Controlador >>>>>>>> >>>>>>>> gdouble duracion = 500; >>>>>>>> >>>>>>>> guint64 duracion = 500; >>>>>>>> >>>>>>>> GstController * ctrl = gst_object_control_properties(G_OBJECT(smpte), >>>>>>>> "position",NULL); >>>>>>>> >>>>>>>> if (ctrl == NULL) >>>>>>>> { >>>>>>>> GST_WARNING ("No puede controlar el elemento fuente\n"); >>>>>>>> return 0; >>>>>>>> } >>>>>>>> >>>>>>>> >>>>>>>> // Todo valor GValue debe inicializarse en 0 >>>>>>>> GValue val_double = { 0, }; >>>>>>>> g_value_init (&val_double, G_TYPE_DOUBLE); >>>>>>>> >>>>>>>> >>>>>>>> // Seteo modo de interpolacion >>>>>>>> >>>>>>>> GstInterpolationControlSource * csource = >>>>>>>> gst_interpolation_control_source_new(); >>>>>>>> >>>>>>>> >>>>>>>> gst_interpolation_control_source_set_interpolation_mode(csource,GST_INTERPOLATE_LINEAR); >>>>>>>> >>>>>>>> // Seteo primer valor >>>>>>>> g_value_set_double(&val_double, 0.0); >>>>>>>> gst_interpolation_control_source_set(csource,(0 * >>>>>>>> GST_MSECOND),&val_double); >>>>>>>> >>>>>>>> // Seteo segundo valor >>>>>>>> g_value_set_double (&val_double, 1.0); >>>>>>>> >>>>>>>> gst_interpolation_control_source_set(csource,(duracion*GST_MSECOND),&val_double); >>>>>>>> >>>>>>>> gst_controller_set_control_source (ctrl, "position", GST_CONTROL_SOURCE >>>>>>>> (csource)); >>>>>>>> >>>>>>>> g_object_unref (csource); >>>>>>>> g_value_unset (&val_double); >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> _______________________________________________ >>>>>>>> gstreamer-devel mailing listgstreamer-devel@lists.freedesktop.orghttp://<a href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" target="_blank">lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> _______________________________________________ >>>>>>>> gstreamer-devel mailing list >>>>>>>> <a href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a> >>>>>>>> <a href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" target="_blank">http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a> >>>>>>>> >>>>>>>> >>>>>>> >>>>>> >>>>> >>>> >>>> _______________________________________________ >>>> gstreamer-devel mailing listgstreamer-devel@lists.freedesktop.orghttp://<a href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" target="_blank">lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a> >>>> >>>> >>>> >>>> _______________________________________________ >>>> gstreamer-devel mailing list >>>> <a href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a> >>>> <a href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" target="_blank">http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a> >>>> >>>> >>> >>> _______________________________________________ >>> gstreamer-devel mailing listgstreamer-devel@lists.freedesktop.orghttp://<a href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" target="_blank">lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a> >>> >>> >>> >>> _______________________________________________ >>> gstreamer-devel mailing list >>> <a href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a> >>> <a href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" target="_blank">http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a> >>> >>> >> > > _______________________________________________ > gstreamer-devel mailing listgstreamer-devel@lists.freedesktop.orghttp://<a href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" target="_blank">lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a> > > > > _______________________________________________ > gstreamer-devel mailing list > <a href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a> > <a href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" target="_blank">http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a> > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <<a href="http://lists.freedesktop.org/archives/gstreamer-devel/attachments/20111031/350c2653/attachment.htm" target="_blank">http://lists.freedesktop.org/archives/gstreamer-devel/attachments/20111031/350c2653/attachment.htm</a>> ------------------------------ _______________________________________________ gstreamer-devel mailing list <a href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a> <a href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" target="_blank">http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a> End of gstreamer-devel Digest, Vol 9, Issue 90 ********************************************** </blockquote></div>