[Bug 761211] gstpad: blocking pull probe during pull_range doesn't work

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=761211

--- Comment #2 from Matej Knopp <matej.knopp at gmail.com> ---
No, GST_PAD_PROBE_TYPE_PULL | GST_PAD_PROBE_TYPE_BLOCK doesn't work. The probe
callback is never invoked, because this check in probe_hook_marshal fails

  /* one of the data types for non-idle probes */
  if ((type & GST_PAD_PROBE_TYPE_IDLE) == 0
      && (flags & GST_PAD_PROBE_TYPE_ALL_BOTH & type) == 0)
    goto no_match;

The second check (flags & GST_PAD_PROBE_TYPE_ALL_BOTH & type) == 0) means, that
both type (argument to PROBE_PULL) and flags (probe flags) must have at least
one bit from GST_PAD_PROBE_TYPE_ALL_BOTH set. Otherwise you get always
no_match.

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