[gst-devel] gst_capsfilter_prepare_buf....assertion failed

[nikhil almalkar]

i did..
caps after filesrc :

g_object_set (G_OBJECT (flt1), "caps", gst_caps_new_simple
("video/x-raw-yuv",

"format",GST_TYPE_FOURCC, GST_MAKE_FOURCC ('I','4','2','0'),

"width",G_TYPE_INT,(gint)value2,

"height",G_TYPE_INT,(gint)value1,"framerate", GST_TYPE_FRACTION, 25, 1,
                                    NULL),NULL);

i think i hv gotten rid of that problem ... but now there is another
exception

::gst_ffmpegenc_chain_video: assertion `frame_size == GST_BUFFER_SIZE
(inbuf)' failed

the pipeline :::


pipeline = gst_pipeline_new ("player");
source = gst_element_factory_make ("filesrc", "source");
g_object_set (G_OBJECT (source), "location", Inputfile, NULL);

    flt1 = gst_element_factory_make ("capsfilter","flt1");
   g_object_set (G_OBJECT (flt1), "caps", gst_caps_new_simple
("video/x-raw-yuv",

"format",GST_TYPE_FOURCC, GST_MAKE_FOURCC ('I','4','2','0'),

"width",G_TYPE_INT,(gint)value2,

"height",G_TYPE_INT,(gint)value1,"framerate", GST_TYPE_FRACTION, 25, 1,
                                    NULL),NULL);


    encoder = gst_element_factory_make ("ffenc_mpeg2video", "encoder");
        //g_print("%f  %f", value4,value3 );
    g_object_set (G_OBJECT (encoder), "bitrate",
(glong)value4,"buffer-size", (glong)value3, NULL);

/////////////////////////////////

the capsfilter element is linked between the filesrc and the encoder as you
would've guessed.

there also is a decoder following this.. but first i need to figure this
out...
i have specified the buffer size as the standard yuv 4:2:0 cif framesize..
still the exception is ther. (i.e. 152064)...


thank you for your time,

Regards,
Nikhil.

On Mon, Apr 13, 2009 at 5:34 PM, ved kpl <ved.kpl at gmail.com> wrote:

> Did you specify caps after the filesrc element.?
> Can you tell us, what you pipeline looks like?
>
> ~Regards
> Ved
>
> On Mon, Apr 13, 2009 at 12:32 PM, nikhil almalkar
> <nikhil.almalkar at gmail.com> wrote:
> > Hi all,
> >
> > I'm facing a problem in a pipeline that uses ffenc_mpeg2video and
> > ffdec_mpeg2video plugins.
> >
> > I have used a capsfilter to link a filesrc that reads a raw yuv file to
> be
> > encoded. But whenever i run the app it says
> >
> > gst_capsfilter_prepare_buf: assertion `out_caps != NULL' failed
> > basetransform
> > gstbasetransform.c:1372:gst_base_transform_prepare_output_buffer:<flt1>
> > pad-alloc failed: error
> > basetransform
> > gstbasetransform.c:1925:gst_base_transform_handle_buffer:<flt1> could not
> > get buffer from pool:
> >
> > any and all inputs are appreciated.
> >
> > Thanks in advance.
> >
> > Regards,
> > Nikhil.
> >
> >
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