Create a GstBuffer

[Totoketchup]

Hi !

I'm trying to write a plugin and i'm facing a problem. 
I want to create a GstBuffer and put my data into this buffer. 
Then I push it to the src pad.

But I have this error : 
Caught SIGSEGV
Spinning.  Please run 'gdb gst-launch-1.0 21570' to continue debugging,
Ctrl-C to quit, or Ctrl-\ to dump core.

I'm doing this to create the buffer :
 
  GstTetrysElement* filter = (GstTetrysElement*)context;
  GstPad* srcpad = filter->srcpad;
  int size;
  GstBuffer* buf;
  GstMapInfo info;
  GstMemory* mem;


  switch(event)
  {
  /********* encoding messages *********/
  case TETRYS_EVENT_ENCODED_SOURCE_PACKET:

    size = tetrys_translate_src_to_buf(event_param2, bufferTmp); // Here i
get the size of the new buf and the data are collected in buffertmp ( a
pointer to the data )

    buf = gst_buffer_new ();
    mem = gst_allocator_alloc(NULL,size,NULL);

    gst_buffer_append_memory(buf,mem);

    gst_buffer_map(buf,&info,GST_MAP_WRITE);

    memcpy(info.data,bufferTmp,size);

    gst_buffer_unmap(buf,&info);
    
    gst_pad_push (srcpad, buf);


Thanks ;)





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