@@ -93,9 +93,9 @@ int av_buffersrc_add_frame_flags(AVFilterContext *ctx, AVFrame *frame, int flags

 {

     AVFrame *copy = NULL;

     int ret = 0;

-    int64_t layout = frame->channel_layout;

-    if (layout && av_get_channel_layout_nb_channels(layout) != av_frame_get_channels(frame)) {

+    if (frame && frame->channel_layout &&

+        av_get_channel_layout_nb_channels(frame->channel_layout) != av_frame_get_channels(frame)) {

         av_log(0, AV_LOG_ERROR, "Layout indicates a different number of channels than actually present\n");

         return AVERROR(EINVAL);

     }