公开(公告)号：US10999578B2

公开(公告)日：2021-05-04

申请号：US16612889

申请日：2017-12-12

Applicant: Google LLC

Inventor： Chao Chen ,  Balineedu Adsumilli ,  Shawn Singh ,  Yilin Wang

IPC: H04N19/124 ,  H04N19/103 ,  H04N19/154 ,  H04N19/172 ,  H04N19/176 ,  H04N19/61

Abstract: Systems and methods for transcoding media content are disclosed. In some embodiments, the method includes obtaining a transcoded media content that is transcoded from an uploaded media content. The method includes determining a plurality of degradation metric values corresponding to the transcoded media content based on the uploaded media content and the transcoded media content, each degradation metric value corresponding to a different degradation metric type. The method includes mapping each degradation metric value to a respective calibrated score to obtain a plurality of calibrated scores. The method includes determining an aggregated quality score of the transcoded media content based on the plurality of calibrated scores and an exponential weighting function. The exponential weighting function exponentiates each of the calibrated scores by a respective weighting exponent and aggregates the exponentiated calibrated scores. The method includes selectively reencoding the transcoded media content based on the aggregated quality score.

公开(公告)号：US20240331709A1

公开(公告)日：2024-10-03

申请号：US18355928

申请日：2023-07-20

Applicant: GOOGLE LLC

Inventor： Sze Chie Lim ,  Shawn Singh ,  Anjali Wheeler ,  Jani Huoponen ,  Jan Skoglund

IPC: G10L19/02

CPC classification number: G10L19/02

Abstract: A method including receiving first audio data, receiving second audio data, compressing the first audio data as first compressed audio data, compressing the second audio data as second compressed audio data, generating a codec dependent container including a parameter associated with compressing the first audio data, compressing the second audio data, a reference to the first compressed audio data, and a reference to the second compressed audio data, generating a codec agnostic container including at least one parameter representing time-varying data associated with playback of the first audio data and the second audio data, and generating an audio package including the codec dependent container and the codec agnostic container.

公开(公告)号：US20240329915A1

公开(公告)日：2024-10-03

申请号：US18353037

申请日：2023-07-14

Applicant: GOOGLE LLC

Inventor： Sze Chie Lim ,  Shawn Singh

IPC: G06F3/16

CPC classification number: G06F3/165 ,  G06F3/162

Abstract: A method including generating an audio stream including a first substream as first audio data and a second substream as second audio data, generating a first loudness parameter associated with playback of the first substream, generating a second loudness parameter associated with playback of the second substream, and generating an audio package including an identification corresponding to the first audio data, an identification corresponding to the second audio data, and a codec agnostic container including the first loudness parameter, and the second loudness parameter.