Lee Dyer was reported to the RSPCA after his neighbour secretly filmed the horrific footage from a window on September 9 last year.
The footage shows 28-year-old Dyer beating the three-year-old rescue dog - a Staffordshire bull terrier called Bullet - in his back garden with a 10ft-long plank of wood.
Although the images are grainy they show Dyer repeatedly lifting the plank of wood and bringing it down on the dog, which is hiding behind a giant paddling pool.
Another clip shows Dyer holding the dog between his legs and repeatedly punching it in the head from both sides before giving it several kicks.
He is also shown grabbing the terrified dog by the throat after it tried to escape from his clutches, even playing dead at one point in a desperate bid to stop the attack.
Dyer told Camberwell Green Magistrates Court last week how he attacked the dog after it urinated on his trousers.
Andrew Wiles, prosecuting, said: "The vet said the dog's behaviour was very submissive and he was hand shy, which is evidence of the fact the dog was exposed to trauma.
"She said the dog would have been terrified and suffered mentally."
Dyer admitted causing unnecessary suffering to an animal and two counts of failing to ensure the welfare of an animal at a previous hearing and was ordered to do 200 hours unpaid work and pay £300 in court costs.
An RSPCA spokeswoman said the dog had now been seized, adding: "We are pleased the defendant has now been convicted in this horrific case.
"The footage speaks for itself about the cruelty here."
The maximum sentence for causing unnecessary suffering to an animal under the Animal Welfare Act 2006 is six months in prison or a fine of £20,000.
Source: agencies
