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qtdemux: Do not run the preferred decryptor context query if no decryptor avalaible

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Ultimately this avoids a segfault as the code expect a non NULL array
here.
This commit is contained in:
Thibault Saunier 2018-05-25 10:17:29 +02:00
parent c2a0da8096
commit 3e063703b3
1 changed files with 7 additions and 0 deletions
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7
gst/isomp4/qtdemux.c
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@ -8056,6 +8056,13 @@ gst_qtdemux_request_protection_context (GstQTDemux * qtdemux,
g_ptr_array_add (qtdemux->protection_system_ids, NULL);
filtered_sys_ids = gst_protection_filter_systems_by_available_decryptors (
(const gchar **) qtdemux->protection_system_ids->pdata);
if (!filtered_sys_ids) {
GST_INFO_OBJECT (element,
"No avalaible decryptor, not worth asking the user to choose.");
return;
}
g_ptr_array_remove_index (qtdemux->protection_system_ids,
qtdemux->protection_system_ids->len - 1);
GST_TRACE_OBJECT (qtdemux, "detected %u protection systems, we have "