Police say the 49-year-old was running past a house on Maxwells Avenue at Miller when the dogs, believed to be bull terriers, gave chase.
[In the video, one of the dogs removed from the house by Animal Control appears to be a Boxer.]
Witnesses say the man who tried to intervene was also attacked.
"The bloke got out of the bus and he's seen the dogs [biting] the man ... and he went and grabbed the hose and he went to give the dogs some water," the witness said.
"It didn't work out so he threw the hose away and the dogs went [after] him."
A spokeswoman for the NSW Ambulance crew confirmed the man who intervened required treatment for minor injuries.
A crime scene has been established and police say the dogs are likely to be destroyed.
(abc - May 26, 2013)