CPC H04N 21/4394 (2013.01) [G10H 1/0008 (2013.01); H04N 1/32 (2013.01); H04N 21/41407 (2013.01); H04N 21/4223 (2013.01); H04N 21/42203 (2013.01); H04N 21/439 (2013.01); H04N 21/4332 (2013.01); H04N 21/43072 (2020.08); H04N 21/8352 (2013.01); H04N 21/84 (2013.01); H04N 21/8456 (2013.01); G10H 2210/041 (2013.01); G10H 2210/051 (2013.01); G10H 2240/141 (2013.01); G10H 2250/235 (2013.01)] | 20 Claims |
1. A computer-implemented method comprising:
determining, by a computing device, a match point within a sequence of media content that is presented by a playback device, wherein the match point is associated with a reference fingerprint of a set of reference fingerprints, and wherein the set of reference fingerprints corresponds to the sequence of media content and is stored in a memory of the computing device;
obtaining, by the computing device, a fragment of media content;
generating, by the computing device, a query fingerprint using the fragment of media content;
comparing, by the computing device, the query fingerprint with a first subset of the set of reference fingerprints, wherein each reference fingerprint of the first subset corresponds to a portion of the sequence of media content that is adjacent to the match point;
based on a result of the comparing, determining, by the computing device, that the query fingerprint does not match any reference fingerprints of the first subset;
based on the determining that the query fingerprint does not match a reference fingerprint of the first subset, comparing, by the computing device, the query fingerprint with a second subset of the set of reference fingerprints, wherein each reference fingerprint of the second subset corresponds to the sequence of media content and has a respective timestamp that is within a threshold time span of the match point, and wherein the second subset has more reference fingerprints than the first subset; and
based on determining that the query fingerprint does not match a reference fingerprint of the second subset, providing the query fingerprint to a server device for a search of additional fingerprints in response to determining that a value of an internal counter is greater than a threshold value, wherein the internal counter is configured to track a number of attempts to match the reference fingerprint of the second subset.
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