[gst-devel] new plugin writer's issue

[Durgesh Mishra]

Hi Mike,

The problem is resolved now. Here is something that I did.

I took reference of AlsaSrc plugin for writing this DroidAudioSrc plugin.

I did write these statements in droidaudiosrc_init() function.

GstPad* src_pad = gst_pad_new_from_static_template (&src_factory, "src");
    gst_pad_set_getcaps_function (src_pad,

GST_DEBUG_FUNCPTR(gst_pad_proxy_getcaps));
    gst_element_add_pad (GST_ELEMENT (asrc), src_pad);

It resolved the problem.

Thanks for your help.

Kind Regards
-Durgesh O Mishra

On 18 February 2010 21:49, Durgesh Mishra <durgesh.mishra at gmail.com> wrote:

> Hi Mike,
>
> I have inherited droidaudiosrc from GstAudioSrc.
>
> Here is the code for doing this. But still I am getting the same error.
> What could be wrong ?
>
> struct _Gstdroidaudiosrc
> {
>   GstAudioSrc    source;
>   AudioRecordDeviceHandle audiorecord_device;
>   gboolean   m_init;
>   gint   bytes_per_sample;
>   gpointer   m_audiosrc;
>   GstCaps *probed_caps;
> };
>
> struct _GstdroidaudiosrcClass
> {
>     GstAudioSrcClass parent_class;
> };
>
> static void
> gst_droidaudiosrc_base_init (gpointer gclass)
> {
>     GstElementClass *element_class = GST_ELEMENT_CLASS (gclass);
>
>   gst_element_class_set_details_simple(element_class,
>     "droidaudiosrc",
>     "Src/Audio",
>     "Input from android audio record",
>     "durgesh o mishra durgesh.mishra at gmail.com");
>
>   gst_element_class_add_pad_template (element_class,
>       gst_static_pad_template_get (&src_factory));
> }
>
> Thanks in advance
>
> Regards
> -Durgesh O Mishra
>
>
> On 18 February 2010 03:04, Michael Smith <msmith at xiph.org> wrote:
>
>> On Wed, Feb 17, 2010 at 12:19 PM, Durgesh Mishra
>> <durgesh.mishra at gmail.com> wrote:
>> > Hi Experts,
>> >
>> > I am writing audio source plugin for Android. I am new to gstreamer and
>> > would appreciate your help on this.
>> >
>> > While running the plugin with gst-launch, I am getting following error.
>> >
>> > gst-launch-0.10 droidaudiosrc ! audioconvert ! audioresample ! fakesink
>> >
>> >  GStreamer-WARNING **: Element droidaudiosrc0 has an ALWAYS template
>> src,
>> > but no pad of the same name
>>
>> Your audio source plugin should inherit from GstAudioSrc (or if
>> there's a particular reason that that isn't appopriate,
>> GstBaseAudioSrc). If you do it this way, the pad will be created for
>> you, so you shouldn't have this problem.
>>
>> Mike
>>
>>
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>
>
>
> --
> "If you only have a hammer, you tend to see every problem as a nail."
>



-- 
"If you only have a hammer, you tend to see every problem as a nail."
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