Comment 2 for bug 1314364

StacktraceTop:
 g_return_if_fail_warning (log_domain=log_domain@entry=0x0, pretty_function=pretty_function@entry=0x7f1e4239f250 <__func__.19968> "gst_video_frame_map_id", expression=expression@entry=0x7f1e4239f044 "GST_IS_BUFFER (buffer)") at /build/buildd/glib2.0-2.40.0/./glib/gmessages.c:1080
 gst_video_frame_map_id (frame=frame@entry=0x7f1e1fffe090, info=info@entry=0x7f1e20014548, buffer=0x7f1e28152590, id=id@entry=-1, flags=flags@entry=(GST_MAP_READ | GST_MAP_WRITE)) at video-frame.c:63
 gst_video_frame_map (frame=frame@entry=0x7f1e1fffe090, info=info@entry=0x7f1e20014548, buffer=<optimized out>, flags=flags@entry=(GST_MAP_READ | GST_MAP_WRITE)) at video-frame.c:173
 get_output_buffer (frame=0x7f1e2004cbb0, ffmpegdec=0x7f1e180587c0) at gstavviddec.c:1082
 gst_ffmpegviddec_video_frame (ffmpegdec=ffmpegdec@entry=0x7f1e180587c0, data=<optimized out>, data@entry=0x7f1e18b7de10 "", size=<optimized out>, frame=frame@entry=0x7f1e2c0c9950, ret=ret@entry=0x7f1e1fffe49c) at gstavviddec.c:1262