[Bug 752092] avidemux: audio skips on some files after update from 1.4 to 1.5

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=752092

--- Comment #3 from Vineeth <vineeth.tm at samsung.com> ---
doing some analysis on this.. These are my observations..
The above commit replaces gst_buffer_new_wrapped_full 
with gst_adapter_get_buffer, which is supposed to do the same as the previous..

The main problem seems to happen in gst_adapter_get_buffer(), the below piece
of code.

  if (skip == 0 && hsize == nbytes) {
    GST_LOG_OBJECT (adapter, "providing buffer of %" G_GSIZE_FORMAT " bytes"
        " as head buffer", nbytes);
    buffer = gst_buffer_ref (cur);
    goto done;
  }

just doing a ref of the cur buffer is not working properly.. But if i just
extract the data and use the same buffer, then there is no issue. Like the
below piece of code...

data = g_malloc (nbytes);
gst_buffer_extract (cur, skip, data, nbytes);
buffer = gst_buffer_new_wrapped (data, nbytes);



strangely even if i do copy of buffer "buffer = gst_buffer_copy (cur);", there
is same issue.
I was thinking copy should work same as the above 3 statements. But something
seems to be missing.

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