<html> <head> <style></style> </head> <body class='hmmessage'> Hi all,     Currently I am working with TI Davinci processor, and I build a gstreamer pipeline for video streaming as follows:     v4l2src->capsfilter->tee->queue->resizer->h264encoder->rtph264pay->udpsink                                                ->queue->resizer->mjpegencoder->filesink     It is just a brief outline, and it works ok.     Now I want to change the resolution from D1->CIF on the fly, currently, I do the following:     1. get the src pad of queue     2. block the pad     3. change the properties of resizer and the encoder.     4. unblock the pad       but after that, the pipeline stops working. I am new to gstreamer, and wonder if anyone could give me some suggestion. regards, Rafael </body> </html>