avvidec: don't crash on EOS when no buffers have been received

Fixes crash on EOS when no buffers have been received for some
reason, e.g. because the parser didn't output any.

fakesrc num-buffers=0 format=time ! avdec_h264 ! fakesink

diff --git a/ext/libav/gstavviddec.c b/ext/libav/gstavviddec.c
index b4edb36..01ca9de 100644 (file)
--- a/ext/libav/gstavviddec.c
+++ b/ext/libav/gstavviddec.c
@@ -1475,6 +1475,9 @@ gst_ffmpegviddec_drain (GstFFMpegVidDec * ffmpegdec)
 {
   GstFFMpegVidDecClass *oclass;
 
+  if (!ffmpegdec->opened)
+    return;
+
   oclass = (GstFFMpegVidDecClass *) (G_OBJECT_GET_CLASS (ffmpegdec));
 
   if (oclass->in_plugin->capabilities & CODEC_CAP_DELAY) {