Crossfading-transition between more than 2 videos.

Rossana Guerra guerra.rossana at gmail.com
Wed Sep 28 23:17:06 PDT 2011


I have to say I don't know if memory the leaks grow with this method. I
appreciate any improvement to this approach.
Thanks

Rossana

2011/9/28 Rossana Guerra <guerra.rossana at gmail.com>

> Hi, well in this way it seems to work. I put the following code in a loop
> (a while-cond).
>
> while (cond)
>
> {
>     loop = g_main_loop_new (NULL, FALSE);
>
>     play = getPipeline3(argv,video1, dur1,video2,comp, op);
>
>     playSigVideo(argv,video1,dur1,video2,dur2,op,play);
>
>
>     bus2 = gst_pipeline_get_bus (GST_PIPELINE (play));
>     gst_bus_add_watch (bus2, bus_call, loop);
>     gst_object_unref (bus2);
>
>     g_main_loop_run (loop);
>
>     gst_element_set_state (play, GST_STATE_NULL);
>     gst_object_unref (GST_OBJECT (play));
> ]
>
> I need to recreate the pipeline and loop. Is there another way? since I
> learning I'd like to know.
> Thanks
>
>
>
>
> 2011/9/28 Rossana Guerra <guerra.rossana at gmail.com>
>
>> Hi Angel, thanks again for your suggestion, I was suspecting something of
>> what you sad.
>> Let's see if I understand. The video and operator variable are within a
>> pipeline, bin, so I need to re create the same "artfact" or pipeline.
>> Do I need to unref video or op referecne and then create and re -add  them
>> into the corresponding bin/pipeline?.
>> Or I delete the whole pipeline?
>> Anf if it is so, where?.
>>
>> Thanks for your responde
>>
>> Rossana
>>
>>
>>
>> 2011/9/28 Angel Martin <amartin at vicomtech.org>
>>
>>> Hi again,
>>>
>>> I think that the problem is that you should create a completely different
>>> GstElement for each video or operation for each transition.
>>>
>>> You want 3 videos, so 3 gst_element_factory_make should appear.
>>>
>>> I think that you are reusing the same variable for different multimedia
>>> objects. Moreover, it is important that the name associated to each
>>> GstElement shouldn't be repeated, specially for concurrent objects.
>>>
>>> Best,
>>>
>>> Angel
>>>
>>>
>>> 2011/9/27 Rossana Guerra <guerra.rossana at gmail.com>
>>>
>>>> Hi another thing I noticed is that it takes the last properties I set to
>>>> video2.
>>>> I meant, I execute video2 twice with differents properties, first for
>>>> those corresponding to argv[2], and the second to argv[1].
>>>> Whatever were the values at argv[2] it doesn't matter if argv[1] are the
>>>> correct ones.
>>>>
>>>> I mean this:
>>>>
>>>> video1
>>>> video2, argv[2] to play at x time
>>>> video2 argv[1] to play after video1
>>>> It skips argv[2], so it keeps with the las values set. So, how I do to
>>>> play a playlist with crossfade?.
>>>>
>>>> I wish I were clear.
>>>>
>>>> Thanks,
>>>>
>>>> Ro
>>>>
>>>>
>>>> 2011/9/26 Rossana Guerra <guerra.rossana at gmail.com>
>>>>
>>>>> Hi Angel, thanks for your suggest, I did what you suggested but it
>>>>> didn't work. It only play the 1st vido. So I put back the variables. In
>>>>> fact, I want to have a play list, so I need to calculate the next
>>>>> start/duration attribute (I need variables for that).
>>>>> As I said if I test with 2 videos it works fine, the problems is when a
>>>>> 3rd one comes to the scenario.
>>>>>
>>>>> This is the situation. I want to play a playlist with crossfade between
>>>>> videos. The crossfade time is fixed: 500ms.
>>>>> The first video lasts 9000ms
>>>>> The 2nd lasts 8000ms.
>>>>> The 3rd lasts 9000ms.
>>>>>
>>>>> 2nd video, start duration: 9000 - 500 // video1 duration - crossfade
>>>>> duration
>>>>> 3rd video start duration: 9000 + 8000 - 2*500  // video1 duration +
>>>>> video 2 duration - 2 * crossfade duration
>>>>>
>>>>> According some test I did, it has to do with starting time of both,
>>>>> operation and 3rd video.
>>>>>
>>>>> Thanks and any suggestion is welcome.
>>>>>
>>>>> Here's the problematic part (start and duration with fixed attributes,
>>>>> didn't work)
>>>>>
>>>>>
>>>>> void playSigVideo(gchar *argv[], GstElement *& video2, gint dur1, gint
>>>>> dur2,GstElement *&op, GstElement *pip)
>>>>> {
>>>>>     g_object_set (op,"start", (dur1 -dur_crossfade) *
>>>>> GST_MSECOND,NULL);
>>>>>     g_object_set (op,"duration", dur_crossfade *  GST_MSECOND,NULL);
>>>>>     g_object_set (op,"media-start", 0 *  GST_MSECOND,NULL);
>>>>>     g_object_set(op,"media-duration", dur_crossfade *
>>>>> GST_MSECOND,NULL);
>>>>>     g_object_set(op,"priority",0,NULL);
>>>>>
>>>>>     // Playing 2nd video
>>>>>
>>>>>     g_object_set (video2, "location", argv[2], NULL);
>>>>>     g_object_set (video2,"uri",argv[2],NULL);
>>>>>     g_object_set (video2, "start", (dur1 -dur_crossfade) * GST_MSECOND,
>>>>> NULL);
>>>>>     g_object_set (video2, "duration", dur2 * GST_MSECOND, NULL);
>>>>>     g_object_set (video2, "media-start", 0 * GST_MSECOND, NULL);
>>>>>     g_object_set (video2, "media-duration", dur2 * GST_MSECOND, NULL);
>>>>>     g_object_set (video2, "priority", 2,NULL);
>>>>>
>>>>>     g_object_set (op,"start", (dur1 + dur2 - 2*dur_crossfade) *
>>>>> GST_MSECOND,NULL);
>>>>>
>>>>>     g_object_set (op,"duration", dur_crossfade *  GST_MSECOND,NULL);
>>>>>     g_object_set (op,"media-start", 0 *  GST_MSECOND,NULL);
>>>>>     g_object_set(op,"media-duration", dur_crossfade *
>>>>> GST_MSECOND,NULL);
>>>>>     g_object_set(op,"priority",0,NULL);
>>>>>
>>>>>    // Playin 3rd video, which is the first one played
>>>>>
>>>>>     g_object_set (video2, "location", argv[1], NULL);
>>>>>     g_object_set (video2,"uri",argv[1],NULL);
>>>>>     g_object_set (video2, "start", (dur1 + dur2 - 2*dur_crossfade) *
>>>>> GST_MSECOND, NULL);
>>>>>
>>>>>     g_object_set (video2, "duration", dur1 * GST_MSECOND, NULL);
>>>>>     g_object_set (video2, "media-start", 0 * GST_MSECOND, NULL);
>>>>>     g_object_set (video2, "media-duration", dur1 * GST_MSECOND, NULL);
>>>>>     g_object_set (video2, "priority", 3,NULL);
>>>>>
>>>>>
>>>>> }
>>>>>
>>>>>
>>>>>
>>>>> 2011/9/26 Angel Martin <amartin at vicomtech.org>
>>>>>
>>>>>> Hello,
>>>>>>
>>>>>> I suggest you to remove variable start and duration attributes and put
>>>>>> fixed values instead in order to have a clear schedule of the different
>>>>>> elements involved.
>>>>>>
>>>>>> Moreover, the priority of the operation should be always minor that
>>>>>> the videos involved, I suggest you to put a 0 always in the transition
>>>>>> operation priority.
>>>>>>
>>>>>> Best Regards,
>>>>>>
>>>>>> Angel
>>>>>>
>>>>>> 2011/9/25 Rossana Guerra <guerra.rossana at gmail.com>
>>>>>>
>>>>>>> Hello everyone, I am trying to do crossfade between 3 videos. It
>>>>>>> works fine when I do the same with 2, but when I put the 3rd something
>>>>>>> happens and the player displays only the first.
>>>>>>> Actually I use 2 videos, and I did a playlist such video1 -> video2
>>>>>>> -> video2, where the 3rd time, I set the new starting time of the video2
>>>>>>> object.
>>>>>>>
>>>>>>> video1 starts at 0, and its durations is dur1
>>>>>>> I use an operator to handle the alpha channel, it starts at dur1 -
>>>>>>> dur_crossfade
>>>>>>> video2, starts at dur1 - dur_crossfade
>>>>>>> And the starting time of video 2 the third time is dur1 + dur2 -
>>>>>>> dur_crossfade.
>>>>>>>
>>>>>>> Maybe it's something wrong with the priority or start properties
>>>>>>> values, I am very new with GStreamer, I could make several mistakes.
>>>>>>>
>>>>>>> Thanks and regards,
>>>>>>>
>>>>>>> Rossana
>>>>>>>
>>>>>>>
>>>>>>> Here's the code:
>>>>>>>
>>>>>>>
>>>>>>> const gint dur_crossfade = 500;
>>>>>>>
>>>>>>> // Error handler
>>>>>>> static gboolean bus_call (GstBus *bus, GstMessage *msg, gpointer
>>>>>>> data)
>>>>>>> {
>>>>>>>
>>>>>>>   :::::::::::::::::::::::::::::::::
>>>>>>>     return TRUE;
>>>>>>> }
>>>>>>>
>>>>>>> static void on_pad_added (GstElement *element, GstPad *pad, gpointer
>>>>>>> data)
>>>>>>> {
>>>>>>>   GstPad *sinkpad = NULL;
>>>>>>>   GstElement * queue = (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 (queue, "sink");
>>>>>>>
>>>>>>>   gst_pad_link (pad, sinkpad);
>>>>>>>
>>>>>>>   gst_object_unref (sinkpad);
>>>>>>>
>>>>>>> }
>>>>>>>
>>>>>>> GstElement * getBin(const gchar * nomBin, GstElement * &alfa1,
>>>>>>> GstElement *&smpte, GstElement * &color, gint transicion = 1)
>>>>>>> {
>>>>>>>
>>>>>>>   GstElement * bin = gst_bin_new(nomBin);
>>>>>>>
>>>>>>>   if (!bin)
>>>>>>>   {
>>>>>>>       g_printerr ("No se pudo crear el bin. Saliendo\n");
>>>>>>>      return NULL;
>>>>>>>   }
>>>>>>>
>>>>>>>   alfa1   = gst_element_factory_make ("alpha","alfa1");
>>>>>>>   smpte  = gst_element_factory_make ("smptealpha","smpte");
>>>>>>>   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 NULL;
>>>>>>>   }
>>>>>>>
>>>>>>>   // Anexamos al bin
>>>>>>>   gst_bin_add_many(GST_BIN (bin),alfa1,smpte,mixer,color,NULL);
>>>>>>>
>>>>>>>   // Enlazamos elementos
>>>>>>>   gst_element_link (alfa1, mixer);
>>>>>>>   gst_element_link (smpte, mixer);
>>>>>>>   gst_element_link (mixer,color);
>>>>>>>
>>>>>>>   g_object_set(smpte,"type", transicion, NULL);
>>>>>>>
>>>>>>>   return bin;
>>>>>>> }
>>>>>>>
>>>>>>> void getAndSetController(GstElement * smpte, gdouble duracion)
>>>>>>> {
>>>>>>>     GstController * ctrl = NULL;
>>>>>>>     if (!(ctrl = gst_controller_new (G_OBJECT (smpte),
>>>>>>> "alpha",NULL))) {
>>>>>>>         GST_WARNING ("No puede controlar el elemento fuente\n");
>>>>>>>         return;
>>>>>>>    }
>>>>>>>
>>>>>>>   // Todo valor GValue debe inicializarse en 0
>>>>>>>   GValue val_double = { 0, };
>>>>>>>   g_value_init (&val_double, G_TYPE_DOUBLE);
>>>>>>>
>>>>>>>
>>>>>>>   // Create de controller, source and set the interpolation mode
>>>>>>>
>>>>>>>   GstInterpolationControlSource * csource =
>>>>>>> gst_interpolation_control_source_new();
>>>>>>>   gst_controller_set_control_source (ctrl, "alpha",
>>>>>>> GST_CONTROL_SOURCE (csource));
>>>>>>>
>>>>>>>
>>>>>>> gst_interpolation_control_source_set_interpolation_mode(csource,GST_INTERPOLATE_LINEAR);
>>>>>>>
>>>>>>>   // Set first value
>>>>>>>   g_value_set_double(&val_double, 0.0);
>>>>>>>   gst_interpolation_control_source_set(csource,(0 *
>>>>>>> GST_MSECOND),&val_double);
>>>>>>>
>>>>>>>   // Ser 2nd value
>>>>>>>   g_value_set_double (&val_double, duracion);
>>>>>>>   gst_interpolation_control_source_set(csource,(1 *
>>>>>>> GST_MSECOND),&val_double);
>>>>>>>
>>>>>>>
>>>>>>>   g_object_unref (csource);
>>>>>>>
>>>>>>> }
>>>>>>>
>>>>>>> void addGhostPadsToBin(GstElement *alfa1, GstElement * smpte,
>>>>>>> GstElement * color, GstElement* bin)
>>>>>>> {
>>>>>>>     /* add ghostpad */
>>>>>>>   GstPad * pad1 = gst_element_get_static_pad (alfa1, "sink");
>>>>>>>   gst_element_add_pad(bin, gst_ghost_pad_new("alfasink1", pad1));
>>>>>>>   gst_object_unref (GST_OBJECT (pad1));
>>>>>>>
>>>>>>>   GstPad * pad2 = gst_element_get_static_pad (smpte, "sink");
>>>>>>>   gst_element_add_pad(bin, gst_ghost_pad_new("alfasink2", pad2));
>>>>>>>   gst_object_unref(GST_OBJECT(pad2));
>>>>>>>
>>>>>>>   GstPad * pad3 = gst_element_get_static_pad (color, "src");
>>>>>>>   gst_element_add_pad(bin, gst_ghost_pad_new("colorsrc", pad3));
>>>>>>>   gst_object_unref(GST_OBJECT(pad3));
>>>>>>>
>>>>>>> }
>>>>>>>
>>>>>>> void crossTransicion(gdouble duracion, GstElement * & bin,gint
>>>>>>> transicion = 1)
>>>>>>> {
>>>>>>>     // devuelve el bin
>>>>>>>     GstElement * alfa1, *smpte, *color;
>>>>>>>     alfa1 = 0;
>>>>>>>     smpte = 0;
>>>>>>>     color = 0;
>>>>>>>
>>>>>>>     bin = getBin("bin",alfa1, smpte,color,transicion);  // Crea el
>>>>>>> bin y los elementos
>>>>>>>
>>>>>>>     getAndSetController(smpte,duracion);
>>>>>>>
>>>>>>>     addGhostPadsToBin(alfa1, smpte, color, bin);
>>>>>>>
>>>>>>> }
>>>>>>>
>>>>>>> GstElement * crearVideo(const gchar *nomVideo, GstElement *&comp)
>>>>>>> {
>>>>>>>   GstElement* video = NULL;
>>>>>>>   if ((video = gst_element_factory_make("gnlfilesource", nomVideo))
>>>>>>> == NULL)
>>>>>>>     {
>>>>>>>       printf ("\n Falló la creacion del gnlfilesource \n");
>>>>>>>       return NULL;
>>>>>>>     }
>>>>>>>
>>>>>>>
>>>>>>>     if (gst_bin_add (GST_BIN (comp), video) == FALSE)
>>>>>>>     {
>>>>>>>       printf ("\n No pudo agregar video %s a comp \n", nomVideo);
>>>>>>>       return NULL;
>>>>>>>     }
>>>>>>>
>>>>>>>     return video;
>>>>>>> }
>>>>>>>
>>>>>>> void crearCompYoper(GstElement*& compo, GstElement *&op, GstElement*&
>>>>>>> bin2)
>>>>>>> {
>>>>>>>
>>>>>>>     if ((compo = gst_element_factory_make("gnlcomposition",
>>>>>>> "micomposicion")) == NULL)
>>>>>>>     {
>>>>>>>       printf ("\n Fallo al crear gnlcomposition \n");
>>>>>>>       return;
>>>>>>>     }
>>>>>>>
>>>>>>>     //Aqui se crea el bin
>>>>>>>     crossTransicion(dur_crossfade, bin2,1);
>>>>>>>
>>>>>>>     op = gst_element_factory_make("gnloperation", "op");
>>>>>>>
>>>>>>>     if (gst_bin_add (GST_BIN (op), bin2) == FALSE)
>>>>>>>     {
>>>>>>>       printf ("\n No pudo agregar el bin a la gnloperacion op \n");
>>>>>>>       return;
>>>>>>>     }
>>>>>>>
>>>>>>>     if (gst_bin_add (GST_BIN (compo), op) == FALSE)
>>>>>>>     {
>>>>>>>       printf ("\n No pudo agregar la gnloperacion a la gnlcomposition
>>>>>>> \n");
>>>>>>>       return;
>>>>>>>     }
>>>>>>>
>>>>>>> }
>>>>>>>
>>>>>>>
>>>>>>> /// Aqui pipeline3
>>>>>>>
>>>>>>> GstElement * getPipeline3(gchar *argv[],GstElement *&video1, gint
>>>>>>> dur1, GstElement *& video2,GstElement *& comp, GstElement *&op)
>>>>>>> {
>>>>>>>
>>>>>>>     GstElement *queue, *sink, *pipeline, *bin;
>>>>>>>
>>>>>>>     crearCompYoper(comp, op,bin);
>>>>>>>
>>>>>>>     video1 = crearVideo("video1",comp);
>>>>>>>     video2 = crearVideo("video2",comp);
>>>>>>>
>>>>>>>     g_object_set (video1, "location", argv[1], NULL);
>>>>>>>     g_object_set(video1, "uri", argv[1],NULL);
>>>>>>>     g_object_set (video1, "start", 0 * GST_MSECOND, NULL);
>>>>>>>     g_object_set (video1, "duration", dur1 * GST_MSECOND, NULL);
>>>>>>>     g_object_set (video1, "media-start", 0* GST_MSECOND, NULL);
>>>>>>>     g_object_set (video1, "media-duration", dur1 * GST_MSECOND,
>>>>>>> NULL);
>>>>>>>     g_object_set (video1, "priority", 1,NULL);
>>>>>>>
>>>>>>>     // setup the backend viewer
>>>>>>>     queue = gst_element_factory_make("queue", "queue");
>>>>>>>     sink  = gst_element_factory_make("autovideosink", "sink");
>>>>>>>
>>>>>>>     pipeline = gst_pipeline_new ("video-player");
>>>>>>>
>>>>>>>     /* Agrego elementos al pipeline */
>>>>>>>
>>>>>>>     gst_bin_add_many (GST_BIN (pipeline),comp, queue, sink, NULL);
>>>>>>>
>>>>>>>     g_signal_connect (comp, "pad-added", G_CALLBACK
>>>>>>> (on_pad_added),queue);
>>>>>>>
>>>>>>>     gst_element_link (queue, sink);
>>>>>>>
>>>>>>>     cout << "...PLAY" << endl;
>>>>>>>
>>>>>>>     gst_element_set_state (pipeline, GST_STATE_PLAYING);
>>>>>>>
>>>>>>>     return pipeline;
>>>>>>> }
>>>>>>>
>>>>>>>
>>>>>>> void playSigVideo(gchar *argv[], GstElement *& video2, gint dur1,
>>>>>>> gint dur2,GstElement *&op, GstElement *pip)
>>>>>>> {
>>>>>>>     g_object_set (op,"start", (dur1-dur_crossfade) *
>>>>>>> GST_MSECOND,NULL);
>>>>>>>     g_object_set (op,"duration", dur_crossfade *  GST_MSECOND,NULL);
>>>>>>>     g_object_set (op,"media-start", 0 *  GST_MSECOND,NULL);
>>>>>>>     g_object_set(op,"media-duration", dur_crossfade *
>>>>>>> GST_MSECOND,NULL);
>>>>>>>     g_object_set(op,"priority",0,NULL);
>>>>>>>
>>>>>>>     gst_element_set_state (pip, GST_STATE_PLAYING);
>>>>>>>
>>>>>>>     g_object_set (video2, "location", argv[2], NULL);
>>>>>>>     g_object_set (video2,"uri",argv[2],NULL);
>>>>>>>     g_object_set (video2, "start", (dur1-dur_crossfade) *
>>>>>>> GST_MSECOND, NULL);
>>>>>>>     g_object_set (video2, "duration", dur2 * GST_MSECOND, NULL);
>>>>>>>     g_object_set (video2, "media-start", 0 * GST_MSECOND, NULL);
>>>>>>>     g_object_set (video2, "media-duration", dur2 * GST_MSECOND,
>>>>>>> NULL);
>>>>>>>     g_object_set (video2, "priority", 2,NULL);
>>>>>>>
>>>>>>>     g_object_set (op,"start", ((dur2+dur1)- 2*dur_crossfade) *
>>>>>>> GST_MSECOND,NULL);
>>>>>>>     g_object_set (op,"duration", dur_crossfade *  GST_MSECOND,NULL);
>>>>>>>     g_object_set (op,"media-start", 0 *  GST_MSECOND,NULL);
>>>>>>>     g_object_set(op,"media-duration", dur_crossfade *
>>>>>>> GST_MSECOND,NULL);
>>>>>>>     g_object_set(op,"priority",3,NULL);
>>>>>>>
>>>>>>>     g_object_set (video2, "location", argv[1], NULL);
>>>>>>>     g_object_set (video2,"uri",argv[1],NULL);
>>>>>>>     g_object_set (video2, "start", ((dur2 + dur1) - 2*dur_crossfade)
>>>>>>> * GST_MSECOND, NULL);
>>>>>>>     g_object_set (video2, "duration", dur1 * GST_MSECOND, NULL);
>>>>>>>     g_object_set (video2, "media-start", 0 * GST_MSECOND, NULL);
>>>>>>>     g_object_set (video2, "media-duration", dur1 * GST_MSECOND,
>>>>>>> NULL);
>>>>>>>     g_object_set (video2, "priority", 4,NULL);
>>>>>>>
>>>>>>> }
>>>>>>>
>>>>>>>
>>>>>>> int main(gint argc, gchar *argv[])
>>>>>>> {
>>>>>>>     gint dur1 = 9000; // d uration (in ms) to play of first clip
>>>>>>>     gint dur2 = 8000; // duration (in ms) to play of second clip
>>>>>>>     //gint dur_crossfade = 500; //number of milliseconds to crossfade
>>>>>>> for
>>>>>>>     GMainLoop *loop = NULL;
>>>>>>>
>>>>>>>     /* init GStreamer */
>>>>>>>     gst_init (&argc, &argv);
>>>>>>>     gst_controller_init (&argc, &argv);
>>>>>>>
>>>>>>>     loop = g_main_loop_new (NULL, FALSE);
>>>>>>>
>>>>>>>     /* chequeamos sintaxis */
>>>>>>>     if (argc != 3)
>>>>>>>     {
>>>>>>>         g_print ("Uso: %s <URI1>  <URI2>\n", argv[0]);
>>>>>>>         return -1;
>>>>>>>     }
>>>>>>>
>>>>>>>     GstElement *comp = NULL;
>>>>>>>     GstElement *op = NULL;
>>>>>>>     GstElement *video1,*video2;
>>>>>>>
>>>>>>>     GstElement *play = getPipeline3(argv,video1, dur1,video2,comp,
>>>>>>> op);
>>>>>>>
>>>>>>>     playSigVideo(argv,video2, dur1, dur2,op,play);
>>>>>>>
>>>>>>>     GstBus *bus2 = gst_pipeline_get_bus (GST_PIPELINE (play));
>>>>>>>     gst_bus_add_watch (bus2, bus_call, loop);
>>>>>>>     gst_object_unref (bus2);
>>>>>>>
>>>>>>>     //cout << "...PLAY" << endl;
>>>>>>>
>>>>>>>
>>>>>>>     /* now run */
>>>>>>>     g_main_loop_run (loop);
>>>>>>>
>>>>>>>     /* also clean up */
>>>>>>>     gst_element_set_state (play, GST_STATE_NULL);
>>>>>>>     gst_object_unref (GST_OBJECT (play));
>>>>>>>     return 0;
>>>>>>> }
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> gstreamer-devel mailing list
>>>>>>> gstreamer-devel at lists.freedesktop.org
>>>>>>> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>>>>>>>
>>>>>>>
>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> gstreamer-devel mailing list
>>>>>> gstreamer-devel at lists.freedesktop.org
>>>>>> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>>>>>>
>>>>>>
>>>>>
>>>>
>>>> _______________________________________________
>>>> gstreamer-devel mailing list
>>>> gstreamer-devel at lists.freedesktop.org
>>>> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>>>>
>>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> gstreamer-devel mailing list
>>> gstreamer-devel at lists.freedesktop.org
>>> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>>>
>>>
>>
>
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