pixels.swap(backPixels);#ifGST_VERSION_MAJOR==0if(prevBuffer) gst_buffer_unref (prevBuffer);#elseif(prevBuffer)gst_sample_unref(prevBuffer);#endifprevBuffer = buffer; } mutex.unlock(); }else{ #ifGST_VERSION_MAJOR==0GstBuffer *buffer;//get the buffer from appsinkif(isPaused()) buffer ...