avcodec/g2meet: ask for sample with overflowing RGB

Suggested-by: Tomas Härdin <tjoppen@acc.umu.se>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit ab834b8f)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

libavcodec/g2meet.c

@@ -556,7 +556,7 @@ static uint32_t epic_decode_pixel_pred(ePICContext *dc, int x, int y,
     }
 
     if (R<0 || G<0 || B<0 || R > 255 || G > 255 || B > 255) {
-        av_log(NULL, AV_LOG_ERROR, "RGB %d %d %d is out of range\n", R, G, B);
+        avpriv_request_sample(NULL, "RGB %d %d %d is out of range\n", R, G, B);
         return 0;
     }