More changes for QMediaFormat handling on the backend

The codecs supported by a certain muxer/demuxer are actually
something we need to determine from the backend. So a static
mapping in QMediaFormat will not really work.

Change-Id: I848c607ed222eba160a7c9c1c7b216b991e5ceba
Reviewed-by: Doris Verria <doris.verria@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>

1 files changed, 4 insertions, 0 deletions

diff --git a/src/multimedia/platform/gstreamer/common/qgstutils_p.h b/src/multimedia/platform/gstreamer/common/qgstutils_p.h
index 7b6b6ded1..5cf5035ea 100644
--- a/src/multimedia/platform/gstreamer/common/qgstutils_p.h
+++ b/src/multimedia/platform/gstreamer/common/qgstutils_p.h
@@ -195,6 +195,10 @@ class QGstCaps {
 public:
     QGstCaps(const GstCaps *c) : caps(c) {}
     const GstCaps *caps;
+    void unref() {
+        gst_caps_unref(const_cast<GstCaps *>(caps));
+        caps = nullptr;
+    }
 
     bool isNull() const { return !caps; }