Dallas police said Saturday they have obtained video surveillance as they continue the investigation into the domestic assault complaint against Johnny Manziel.

Police did not specify the nature of the video, but the footage is from the Hotel ZaZa in Dallas, which is where Manziel's former girlfriend, Colleen Crowley, alleged the assault began, a source familiar with the investigation told ESPN.

The Dallas Police Department released a statement and also held a brief news conference Saturday afternoon to address the investigation.

"There has been no determination as to what charge, if any, will be filed against Mr. Manziel," Maj. Midge Boyle said.

Police said that they have interviewed Crowley and witnesses, but they have not spoken to Manziel.

The Dallas Morning News said police said the investigation could be concluded by the end of next week. WFAA in Dallas reported the case could go to a grand jury.

Boyle said the detective investigating the allegations "hasn't gotten all the facts yet.''

"She's still putting the case together,'' Boyle said. "It's been two weeks since this investigation started, and it is high-profile.

"As soon as we have something pertinent to put out, we will let you know."

Crowley's affidavit seeking a protection order, which was granted, stated that after an argument in Manziel's hotel room, he led her down a back stairway to the valet.

Crowley stated in the affidavit that she told the valet she was "scared for my life," and the valet responded he didn't know what to do. She stated in the affidavit that Manziel threw her into the passenger seat of his car.

Dallas police have the video of the encounter with the valet along with other surveillance, according to the source.

Dallas police confirmed they have reviewed Crowley's medical records. She said in her complaint and in the affidavit that she had a ruptured eardrum. Police also said they hope to finish the case as soon as possible.

Information from The Associated Press was used in this report.