KR20180135087A - 복수의 최대 비트레이트 레벨들을 사용하여 인코딩된 비디오를 인코딩하고 스트리밍하기 위한 시스템들 및 방법들 - Google Patents
복수의 최대 비트레이트 레벨들을 사용하여 인코딩된 비디오를 인코딩하고 스트리밍하기 위한 시스템들 및 방법들 Download PDFInfo
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Abstract
Description
도 2는 본 발명의 일 실시예에 따라 타겟 최대 비트레이트 레벨들을 이용하여 인코딩된 비디오 데이터를 전달하도록 구성된 재생 디바이스를 개념적으로 예시하는 도면.
도 3은 본 발명의 일 실시예에 따라 비트레이트들 제공 비디오 데이터의 세트를 결정하기 위한 프로세스를 예시한 흐름도.
도 4는 본 발명의 일 실시예에 따른 인코딩한 최대 비트레이트 레벨들의 세트를 결정하기 위한 프로세스를 예시한 흐름도.
도 5는 본 발명의 일 실시예에 따라 최대 프로파일 비트레이트들에 매칭된 인코딩된 비트레이트들을 가진 해상도들의 세트의 일 예를 예시한 테이블.
도 6은 상이한 종횡비들에 대한 해상도들의 세트들의 일 예를 예시한 테이블이며, 여기에서 각각의 세트에서의 해상도들은 각각의 종횡비가 본 발명의 실시예에 따라 최대 비트레이트 레벨들의 각각 내에 속하는 해상도으로 인코딩되도록 인코딩된다.
104: HTTP 서버 106: 소스 인코더
108: CE 플레이어 110: 개인용 컴퓨터
112: 이동 전화기 150: 소스 인코더
152: 프로세서 154: 메모리
156: 인코딩 애플리케이션 158: 비디오 데이터
160: 최대 비트레이트 레벨 데이터
Claims (20)
- 소스 인코더에 있어서,
프로세서; 및
메모리를 포함하고, 상기 메모리는 상기 프로세서로 하여금,
비디오 콘텐트의 인코딩을 위해 해상도와 프레임 레이트를 선택하는 단계;
상기 선택된 해상도와 프레임 레이트에서 복수의 비트레이트들로 상기 비디오 콘텐트의 적어도 일부를 인코딩하는 단계;
상기 복수의 비트레이트들로 인코딩된 상기 비디오 콘텐트에 기초하여 상기 선택된 해상도와 프레임 레이트에 대해 최적 타겟 비트레이트를 결정하는 단계로서, 상기 최적 타겟 비트레이트는 최고 비디오 품질 기준이 상기 선택된 해상도와 프레임 레이트에 대해 충족되는 최저 비트레이트인, 상기 최적 타겟 비트레이트를 결정하는 단계;
상기 결정된 최적 타겟 비트레이트에 기초하여 레벨 비트레이트를 결정하는 단계; 및
상기 레벨 비트레이트 및 상기 선택된 해상도와 프레임 레이트로 상기 비디오 콘텐트를 인코딩하는 단계를 수행하게 하기 위한 인코딩 애플리케이션을 포함하는, 소스 인코더. - 제 1 항에 있어서,
상기 최적 타겟 비트레이트는 공식을 이용하여 결정되는, 소스 인코더. - 제 1 항에 있어서,
상기 최적 타겟 비트레이트는 실험을 이용하여 결정되는, 소스 인코더. - 제 3 항에 있어서,
상기 최적 타겟 비트레이트는 주관적인 실험을 이용하여 결정되는, 소스 인코더. - 제 1 항에 있어서,
상기 최적 타겟 비트레이트는 해상도와 프레임 레이트 조합에 기초한 함수를 이용하여 결정되는, 소스 인코더. - 비디오 콘텐트를 복수의 대안 스트림들로 인코딩하기 위한 방법에 있어서,
비디오 콘텐트의 인코딩을 위해 해상도와 프레임 레이트를 선택하는 단계;
상기 선택된 해상도와 프레임 레이트에서 복수의 비트레이트들로 상기 비디오 콘텐트의 적어도 일부를 인코딩하는 단계;
상기 복수의 비트레이트들로 인코딩된 상기 비디오 콘텐트에 기초하여 상기 선택된 해상도와 프레임 레이트에 대해 최적 타겟 비트레이트를 결정하는 단계로서, 상기 최적 타겟 비트레이트는 최고 비디오 품질 기준이 상기 선택된 해상도와 프레임 레이트에 대해 충족되는 최저 비트레이트인, 상기 최적 타겟 비트레이트를 결정하는 단계;
상기 결정된 최적 타겟 비트레이트에 기초하여 레벨 비트레이트를 결정하는 단계; 및
상기 레벨 비트레이트, 및 상기 선택된 해상도와 프레임 레이트로 상기 비디오 콘텐트를 인코딩하는 단계를 포함하는, 비디오 콘텐트를 복수의 대안 스트림들로 인코딩하기 위한 방법. - 제 6 항에 있어서,
상기 최적 타겟 비트레이트는 공식을 이용하여 결정되는, 비디오 콘텐트를 복수의 대안 스트림들로 인코딩하기 위한 방법. - 제 6 항에 있어서,
상기 최적 타겟 비트레이트는 실험을 이용하여 결정되는, 비디오 콘텐트를 복수의 대안 스트림들로 인코딩하기 위한 방법. - 제 8 항에 있어서,
상기 최적 타겟 비트레이트는 주관적인 실험을 이용하여 결정되는, 비디오 콘텐트를 복수의 대안 스트림들로 인코딩하기 위한 방법. - 제 6 항에 있어서,
상기 최적 타겟 비트레이트는 상기 해상도와 프레임 레이트 조합에 기초한 함수를 이용하여 결정되는, 비디오 콘텐트를 복수의 대안 스트림들로 인코딩하기 위한 방법. - 소스 인코더에 있어서,
프로세서; 및
메모리를 포함하고, 상기 메모리는 상기 프로세서로 하여금,
비디오 콘텐트를 인코딩하기 위해 복수의 해상도와 프레임 레이트 조합들을 선택하는 단계;
식별된 복수의 해상도와 프레임 레이트 조합들의 각각에 대해 최적 타겟 비트레이트를 결정하는 단계로서, 최적 타겟 비트레이트는 최고 비디오 품질 기준이 특정 해상도와 프레임 레이트 조합에 대해 충족되는 최저 비트레이트인, 상기 최적 타겟 비트레이트를 결정하는 단계;
상기 결정된 최적 최대 비트레이트들에 기초하여 복수의 레벨 최대 비트레이트들을 결정하는 단계로서, 상기 복수의 해상도와 프레임 레이트 조합의 각각은 상기 복수의 레벨 최대 비트레이트들 중 하나와 관련있는, 상기 복수의 레벨 최대 비트레이트들을 결정하는 단계; 및
상기 비디오 콘텐트를 복수의 대안 스트림들로 인코딩하는 단계로서, 상기 복수의 대안 스트림들의 각각은 상기 복수의 레벨 최대 비트레이트들 중 하나 및 관련된 해상도와 프레임 레이트 조합으로 인코딩되는, 상기 인코딩하는 단계를 수행하게 하는 인코딩 애플리케이션을 포함하는, 소스 인코더. - 제 11 항에 있어서,
상기 최적 타겟 비트레이트들은 공식을 이용하여 결정되는, 소스 인코더. - 제 11 항에 있어서,
상기 최적 타겟 비트레이트들은 주관적인 실험을 이용하여 결정되는, 소스 인코더. - 제 11 항에 있어서,
상기 최적 타겟 비트레이트들은 상기 해상도와 프레임 레이트 조합에 기초한 함수를 이용하여 결정되는, 소스 인코더. - 제 11 항에 있어서,
복수의 레벨 최대 비트레이트들을 결정하는 단계는:
상기 결정된 최적 타겟 비트레이트들에 기초하여 상기 복수의 해상도와 프레임 레이트 조합들을 비트레이트 레벨들로 그룹핑하는 단계, 및
상기 비트레이트 레벨들의 각각에 대해 레벨 최대 비트레이트를 결정하는 단계를 포함하는, 소스 인코더. - 제 15 항에 있어서,
비트레이트 레벨의 상기 레벨 최대 비트레이트는 상기 비트레이트 레벨 내에서 상기 해상도와 프레임 레이트 조합들의 최소, 최대, 및 평균 최적 타겟 비트레이트 중 하나를 선택하여 결정되는, 소스 인코더. - 제 15 항에 있어서,
비트레이트 레벨의 상기 레벨 최대 비트레이트는 상기 비트레이트 레벨 내에서 해상도와 프레임 레이트 조합의 상기 최적 타겟 비트레이트를 반올림하여 결정되는, 소스 인코더. - 제 15 항에 있어서,
비트레이트 레벨의 상기 레벨 최대 비트레이트는 상기 비트레이트 레벨 내에서 상기 해상도와 프레임 레이트 조합들의 평균 최적 타겟 비트레이트를 반올림하여 결정되는, 소스 인코더. - 제 15 항에 있어서,
비트레이트 레벨과 관련된 상기 해상도와 프레임 레이트 조합들은 상기 비트레이트 레벨 내에서 해상도와 프레임 레이트 조합의 최고 최적 타겟 비트레이트의 미리 결정된 퍼센트 내에 있는 최적 타겟 비트레이트들을 갖는, 소스 인코더. - 제 15 항에 있어서,
비트레이트 레벨과 관련된 상기 해상도와 프레임 레이트 조합들은 상기 비트레이트 레벨 내에서 적어도 하나의 다른 해상도와 프레임 레이트 조합의 최적 타겟 비트레이트의 미리 결정된 퍼센트 내에 있는 최적 타겟 비트레이트들을 갖는, 소스 인코더.
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| WO2013033458A2 (en) | 2013-03-07 |
| KR20200014940A (ko) | 2020-02-11 |
| US11611785B2 (en) | 2023-03-21 |
| CN103875248A (zh) | 2014-06-18 |
| KR102020764B1 (ko) | 2019-09-11 |
| KR102074148B1 (ko) | 2020-03-17 |
| CN108989847A (zh) | 2018-12-11 |
| KR20140062478A (ko) | 2014-05-23 |
| US20230224519A1 (en) | 2023-07-13 |
| KR101928910B1 (ko) | 2018-12-14 |
| US20210250627A1 (en) | 2021-08-12 |
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