glmixer: set the current texture to 0 before mapping

If we fail mapping, we don't want to use undefined video data in the subclass.

diff --git a/ext/gl/gstglmixer.c b/ext/gl/gstglmixer.c
index 7059b4837b4664cfad7d9fe42f094753c3ed9132..3fc7fce2c8df8ae4038472e4d4e6b4d408587c6e 100644 (file)
--- a/ext/gl/gstglmixer.c
+++ b/ext/gl/gstglmixer.c
@@ -604,6 +604,7 @@ _upload_frames (GstAggregator * agg, GstAggregatorPad * agg_pad,
   GstGLMixerPad *pad = GST_GL_MIXER_PAD (agg_pad);
   GstGLMixer *mix = GST_GL_MIXER (agg);
 
+  pad->current_texture = 0;
   if (vaggpad->buffer != NULL) {
     GstVideoInfo gl_info;
     GstVideoFrame gl_frame;