Video streaming rtsp://

This url, does not open the streaming video, is blank:
rtsp://HOSTNAME:554/user=usuário&password=senha&channel
=canal&stream=0.sdp

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This url opens the streaming video, but the image is frozen:
rtsp://IP:PORTA/user=USUÁRIO&password=SENHA&channel=1&stream=0.sdp
?

Can someone help me?
I’m using blynk video streaming.
The DVR brand I’m using is from GIGA Security