h.264 encoder issue

kartik natarajan kartik8n8 at gmail.com
Tue Sep 4 03:10:32 PDT 2012 

The TIVidenc1 has worked!

I do get a feel now as to what direction I need to head in to complete this
application.
So I see this part of the exercise as recreating what it is on gst-launch
as it is.

Your support has been of great help and is much appreciated.

Thanks a ton
N.Kartik

On Tue, Sep 4, 2012 at 2:55 PM, Jean-Michel Hautbois <jhautbois at gmail.com>wrote:

> Ok, you have to reproduce exactly the same launch line...
> You have the following elements :
> v4l2src
> TIVidenc1
> filesink
>
> You need to name them exactly the same way.
> enc = gst_element_factory_make("TIVidenc", "enc");
> ==> should be enc = gst_element_factory_make("TIVidenc1", "enc");
>
> If you want to make rtp send, this is ok.
> But don't forget to specify the properties of your objects too...
>
> g_object_set (G_OBJECT (enc), "codecName", "h264enc", "engineName",
> "codecServer", NULL);
>
> And you need to use caps in order to specify your v4l2src element...
>
> You can also use gst_parse_launch() which will help you a lot.
> It can parse your line like gst-launch does, and you can get an
> element using its name if you want to modify some properties (the IP
> adress for instance).
>
> When you test your program, you can launch it with GST_DEBUG : this
> will tell you what is wrong :
>
> $> GST_DEBUG=3 ./gstream
>
> Happy hacking !
> JM
>
> 2012/9/4 kartik natarajan <kartik8n8 at gmail.com>:
> > Sure, here it is. Thanks for your cooperation
> >
> > This works
> >
> > gst-launch -v 'v4l2src always-copy=FALSE num-buffers=800
> input-src=composite
> > ! video/x-raw-yuv, format=\(fourcc\)NV12, width=720, height=480 !
> TIVidenc1
> > codecName=h264enc engineName=codecServer !filesink
> location=/home/gr8.264'
> >
> >
> >
> > #include <gst/gst.h>
> >
> > #include<glib.h>
> >
> >
> > #define STATIC_IP "127.0.0.1"
> >
> >
> > int main(int argc, char *argv[])
> >
> > {
> >
> >         GMainLoop *loop;
> >
> >
> >
> >         GstElement *pline, *src, *enc,*pay, *sink;
> >
> >         GstBus *bus;
> >
> >         guint major,minor, micro, nano;
> >
> >
> >
> >         gst_init(&argc, &argv);
> >
> >         gst_version(&major, &minor,&micro, &nano);
> >
> >         printf("gstreamer version: %d.%d.%d",major,minor,micro);
> >
> >         loop = g_main_loop_new(NULL, FALSE);
> >
> > pline = gst_pipeline_new ("Ossler video");
> >
> >         if(!pline)
> >
> >         g_printerr("\npipeline creation failed\n");
> >
> >         else
> >
> >         g_print("\npipeline created\n");
> >
> >         src = gst_element_factory_make("v4lsrc", "src");
> >
> >         if(!src)
> >
> >         g_printerr("\nsrc creation failed\n");
> >
> >         else
> >
> >         g_print("\nv4lsrc created\n");
> >
> >         //********************************************************
> >
> >         enc = gst_element_factory_make("TIVidenc", "enc");
> >
> >         if(!enc)
> >
> >         g_printerr("\nencoder TI-Video enc creation failed\n");
> >
> >         else
> >
> >         g_print("\n264 encoder created\n");
> >
> >         g_assert(enc);
> >
> > //      g_object_set();
> >
> >         //**************************************************************
> >
> >         sink = gst_element_factory_make("udpsink", "sink");
> >
> >         if(!sink)
> >
> >         g_printerr("\nudp sink creation failed\n");
> >
> >           else
> >
> >         g_print("\nudp sink created\n");
> >
> >         g_assert(sink);
> >
> >         g_object_set (sink, "port", 1234, "host", STATIC_IP, NULL);
> >
> >
> >
> >        pay = gst_element_factory_make("rtph264pay", "my264pay");
> >
> >         if(!sink)
> >
> >         g_printerr("\npayload element creation failed\n");
> >
> >         else
> >
> >         g_print("\n payloader created\n");
> >
> >
> >
> >         //**********************add all in
> > bin*********************************
> >
> >         gst_bin_add_many(GST_BIN(pline),src,enc,pay,sink,NULL);
> >
> >
> >
> >
> >
> >         //*********************link
> > them***************************************
> >
> >         gst_element_link_many(src,enc,pay,sink,NULL);
> >
> >
> >
> >
> >
> >
> > //*********************cleanup***************************************
> >
> >         gst_element_set_state(pline,GST_STATE_NULL);
> >
> > //      gst_object_unref(pline);
> >
> > //      gst_main_loop_unref(loop);
> >
> >         return 0;
> >
> >         }
> >
> >
> > I am compiling this code with this
> >
> > arm-none-linux-gnueabi-gcc -o gstream gstream.c -lz `pkg-config --cflags
> > --libs gstreamer-0.10`
> >
> >
> > I tried this too..
> >
> > arm-none-linux-gnueabi-gcc -o gstream gstream.c -lz  -L $(LIB)/
> `pkg-config
> > --cflags --libs gstreamer-0.10`
> >
> >   [where LIB is the path where the libgstticodec.so library is for the
> > TIVidEnc is]
> >
> >
> >
> >
> >
> > N.Kartik
> >
> >
> > On Tue, Sep 4, 2012 at 2:22 PM, Jean-Michel Hautbois <
> jhautbois at gmail.com>
> > wrote:
> >>
> >> Well, in order to go further, we will need more information, a paste
> >> of a part of your code, and a GST_DEBUG output for instance.
> >> Can you paste your gst-launch line too ?
> >>
> >> JM
> >>
> >> 2012/9/4 kartik natarajan <kartik8n8 at gmail.com>:
> >> > Thanks for your response.
> >> > The TIVidEnc seems to fail too.
> >> > Any suggestions?
> >> > I am developing the gstreamer app using the same like only.
> >> > I figured the elements I would need and have done a simple factory
> make,
> >> > only the encoder seems to fail.
> >> >
> >> >
> >> > On Tue, Sep 4, 2012 at 1:19 PM, Jean-Michel Hautbois
> >> > <jhautbois at gmail.com>
> >> > wrote:
> >> >>
> >> >> Hi,
> >> >>
> >> >> Your element should not be x264enc, but TIVidEnc :
> >> >>  enc = gst_element_factory_make("x264enc", "encoder");
> >> >> Then, you can set its properties using g_object_set();
> >> >>
> >> >> If you did not read it, please take a look at this documentation :
> >> >>
> >> >>
> >> >>
> http://gstreamer.freedesktop.org/data/doc/gstreamer/head/manual/html/index.html
> >> >>
> >> >> Regards,
> >> >> JM
> >> >>
> >> >> 2012/9/4 kartik natarajan <kartik8n8 at gmail.com>:
> >> >> > Hi,
> >> >> >     DVSDK on DM365, developing a gstreamer app to encode raw images
> >> >> > into
> >> >> > h.264 and store in file.
> >> >> >  I have been able to execute a gst-launch where I provide
> >> >> > codecName=h264enc
> >> >> > to encode raw video and store it in a file. This works well.
> >> >> > Now I build an application on gstreamer.
> >> >> > I have tried doing enc = gst_element_factory_make("x264enc",
> >> >> > "encoder");
> >> >> > but it fails with enc getting a NULL. I tried "h264enc" and
> morbidly
> >> >> > did
> >> >> > "GstX264Enc" as well for the factory name but they failed too.
> >> >> > How do I get this going ahead?
> >> >> >
> >> >> > Thanks in advance
> >> >> >
> >> >> > N.Kartik
> >> >> >
> >> >> >
> >> >> > _______________________________________________
> >> >> > 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
> >> >
> >> >
> >> >
> >> >
> >> > --
> >> > Believe in your dreams, they have a strange way of coming true!!!
> >> >
> >> > _______________________________________________
> >> > 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
> >
> >
> >
> >
> > --
> > Believe in your dreams, they have a strange way of coming true!!!
> >
> > _______________________________________________
> > gstreamer-devel mailing list
> > gstreamer-devel at lists.freedesktop.org
> > http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
> >
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> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>



-- 
Believe in your dreams, they have a strange way of coming true!!!
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