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author | Carlos Rafael Giani <dv@pseudoterminal.org> | 2017-04-26 20:56:17 +0200 |
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committer | Rob Clark <robdclark@gmail.com> | 2017-04-29 10:23:41 -0400 |
commit | 76d2b93f40f670ac4bcd22cc1f5a6e437f3131db (patch) | |
tree | 45a71aacd2299a9b9d73368c9b49f2bc4260b0aa /gst-decoder.c | |
parent | a07e4dabed604bbc7ff9fa6eea58eb009af24197 (diff) | |
download | kmscube-76d2b93f40f670ac4bcd22cc1f5a6e437f3131db.tar.gz |
gst-decoder.c: Use element factory name to detect V4L2 video decoder
Signed-off-by: Carlos Rafael Giani <dv@pseudoterminal.org>
Diffstat (limited to 'gst-decoder.c')
-rw-r--r-- | gst-decoder.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/gst-decoder.c b/gst-decoder.c index 51304a2..05d73b7 100644 --- a/gst-decoder.c +++ b/gst-decoder.c @@ -115,15 +115,24 @@ gst_thread_func(void *args) static void element_added_cb(GstBin *bin, GstElement *element, gpointer user_data) { + GstElementFactory *elem_factory; + gchar const *factory_name; + (void)user_data; (void)bin; - printf("added: %s\n", GST_OBJECT_NAME(element)); + elem_factory = gst_element_get_factory(element); + factory_name = gst_plugin_feature_get_name(elem_factory); + + GST_DEBUG("added element %s (created with factory %s)", GST_OBJECT_NAME(element), factory_name); - // XXX is there a better way to do this, like match class name? - if (strstr(GST_OBJECT_NAME(element), "v4l2video0dec") == GST_OBJECT_NAME(element)) { + /* v4l2 video decoder factories are generated by the GStreamer v4l probe. + * The format is v4l2videoNdec, where N is an integer. So, check if the + * element's factory name fits this pattern. */ + if (g_str_has_prefix(factory_name, "v4l2video") && g_str_has_suffix(factory_name, "dec")) { /* yes, "capture" rather than "output" because v4l2 is bonkers */ gst_util_set_object_arg(G_OBJECT(element), "capture-io-mode", "dmabuf"); + printf("found GStreamer V4L2 video decoder element with name \"%s\"\n", GST_OBJECT_NAME(element)); } } |