Patent ID: 9691430
Date: 2017-06-27
CPC Classifications: G11B,H04L,H04N

Claim:
1. A method for opportunistic source file frame previewing, the method comprising: receiving a first preview request; in response to the first preview request, identifying a starting point of a first sampling segment that is to be transcoded in response to the first preview request and an ending point of the first sampling segment that is to be transcoded in response to the first preview request, wherein the first sampling segment includes a first subset of frames of a first source file from the starting point of the first sampling segment to the ending point of the first sampling segment; receiving, after the first preview request, a second preview request; in response to the second preview request, identifying a starting point of a second sampling segment that is to be transcoded in response to the second preview request and an ending point of the second sampling segment that is to be transcoded in response to the second preview request, wherein the second sampling segment includes a second subset of frames of the first source file from the starting point of the second sampling segment to the ending point of the second sampling segment; transcoding at least a portion of the frames of the second subset; and in response to completion of the transcoding of at least the portion of the frames of the second subset, transcoding a first frame of the first subset that has not been transcoded.