wavparse: Speed up type finding for DTS

In order to figure out if the "raw" audio contained within the wav
container is actually DTS, right now we call the typefinder helper
which runs all typefinders.

Speed up this type finding process by specifying the extension.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3294>

diff --git a/subprojects/gst-plugins-good/gst/wavparse/gstwavparse.c b/subprojects/gst-plugins-good/gst/wavparse/gstwavparse.c
index 677d2e5..0c624c4 100644 (file)
--- a/subprojects/gst-plugins-good/gst/wavparse/gstwavparse.c
+++ b/subprojects/gst-plugins-good/gst/wavparse/gstwavparse.c
@@ -1925,7 +1925,9 @@ gst_wavparse_add_src_pad (GstWavParse * wav, GstBuffer * buf)
     GstTypeFindProbability prob;
     GstCaps *tf_caps;
 
-    tf_caps = gst_type_find_helper_for_buffer (GST_OBJECT (wav), buf, &prob);
+    tf_caps =
+        gst_type_find_helper_for_buffer_with_extension (GST_OBJECT (wav), buf,
+        "dts", &prob);
     if (tf_caps != NULL) {
       GST_LOG ("typefind caps = %" GST_PTR_FORMAT ", P=%d", tf_caps, prob);
       if (gst_wavparse_have_dts_caps (tf_caps, prob)) {