[gst-devel] Issue regarding pushing data

[Edward Hervey]

On Mon, 2008-07-21 at 17:39 +0530, Rahul Nikose wrote:
> Hi Everyone,
>  
>      I have develop demuxer which pull data from filesrc  then I parse
> data inside my demuxer .
>      I have implemented activate_pull and  _loop() ..so to pull data
> from Filesrc
>      I am able to pull data and parse header , but after parsing data
> when i am trying to push
>      data into decoder.....I see nothing happening ( same pipeline
> work with gstremer QTdemux element.)
>      
>       Inside _loop function I have implemented
>       1.  find_video_cap() ..which will find appropriate cap 
>       2.  gst_pad_set_caps (filter->srcpad_video, caps)  which will
> set caps on srcpad
>       3.  gst_buffer_set_caps (buf,caps);     which will set caps onto
> buffer
>       4.  Also set required field inside buffer
>               gst_buffer_set_data ( buf, pData, nLength);
>               GST_BUFFER_SIZE (buf)       =  nLength;
>               GST_BUFFER_TIMESTAMP(buf)   = pMilliSec/1000000;
> (convert milisec into nano sec and then insert)

  If pMilliSec is in milliseconds, you should be multiplying that value
by GST_MSECOND to get nanoseconds. If not, you're going to end up with
really small values, which will make those buffers plaid back REALLY
FAST.

  my 2 cents,

    Edward

>       5.  gst_pad_push (GST_PAD_CAST(filter->srcpad_video), buf);
> this will  push buffer to decoder..
> 
>             Is there somthing I am missing ..... Give me some clue..
> -- 
> Thanks and warm Regards
> Rahul S. Nikose
> 09739949798
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