avviddec: Error out if we try to allocate a buffer without being negotiated

Otherwise we just run into assertions because we should've errored out
already.

diff --git a/ext/libav/gstavviddec.c b/ext/libav/gstavviddec.c
index 1bb8041..e301905 100644 (file)
--- a/ext/libav/gstavviddec.c
+++ b/ext/libav/gstavviddec.c
@@ -1127,6 +1127,9 @@ get_output_buffer (GstFFMpegVidDec * ffmpegdec, GstVideoCodecFrame * frame)
 
   GST_LOG_OBJECT (ffmpegdec, "get output buffer");
 
+  if (!ffmpegdec->output_state)
+    goto not_negotiated;
+
   ret =
       gst_video_decoder_allocate_output_frame (GST_VIDEO_DECODER (ffmpegdec),
       frame);
@@ -1167,9 +1170,14 @@ get_output_buffer (GstFFMpegVidDec * ffmpegdec, GstVideoCodecFrame * frame)
   /* special cases */
 alloc_failed:
   {
-    GST_DEBUG_OBJECT (ffmpegdec, "pad_alloc failed");
+    GST_DEBUG_OBJECT (ffmpegdec, "allocation failed");
     return ret;
   }
+not_negotiated:
+  {
+    GST_DEBUG_OBJECT (ffmpegdec, "not negotiated");
+    return GST_FLOW_NOT_NEGOTIATED;
+  }
 }
 
 static void