Title:
HANDLING OF CODED VIDEO IN SUB-BITSTREAM EXTRACTION PROCESS
Document Type and Number:
WIPO Patent Application WO/2021/233424
Kind Code:
A1
Abstract:
Techniques for video processing, including video coding, video decoding and video transcoding are described. One example method includes performing a conversion between a video comprising performing a conversion between a video comprising one or more video pictures in a video layer and a bitstream of the video according to a rule, and wherein the rule specifies that, in a process of sub-bitstream extraction, removal of (i) a video coding layer (VCL) network abstraction layer (NAL) unit, (ii) filler data NAL units associated with the VCL NAL unit, and (iii) filler payload supplemental enhancement information (SEI) messages associated with the VCL NAL unit is performed regardless of an availability of an external means used to replace a parameter set that is removed during the sub-bitstream extraction.
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Inventors:
WANG YE-KUI (US)
DENG ZHIPIN (CN)
ZHANG KAI (US)
ZHANG LI (US)
DENG ZHIPIN (CN)
ZHANG KAI (US)
ZHANG LI (US)
Application Number:
PCT/CN2021/095184
Publication Date:
November 25, 2021
Filing Date:
May 21, 2021
Export Citation:
Assignee:
BEIJING BYTEDANCE NETWORK TECH CO LTD (CN)
BYTEDANCE INC (US)
BYTEDANCE INC (US)
International Classes:
H04N19/85; H04N19/70
Foreign References:
| CN104798377A | 2015-07-22 | |||
| CN104604236A | 2015-05-06 | |||
| CN104641648A | 2015-05-20 | |||
| CN109547815A | 2019-03-29 | |||
| US20200107027A1 | 2020-04-02 |
Other References:
B. BROSS, J. CHEN, S. LIU, Y.-K. WANG: "Versatile Video Coding (Draft 9)", 130. MPEG MEETING; 20200420 - 20200424; ALPBACH; (MOTION PICTURE EXPERT GROUP OR ISO/IEC JTC1/SC29/WG11), 26 April 2020 (2020-04-26), XP030287927
SKUPIN R ET AL.: "AHG12: On subpicture conformance", 130. MPEG MEETING; 20200420 - 20200424; ALPBACH; (MOTION PICTURE EXPERT GROUP OR ISO/IEC JTC1/SC29/WG11, 4 April 2020 (2020-04-04)
HE (QUALCOMM) Y ET AL.: "AHG9: On sub-bitstream extraction", 130. MPEG MEETING; 20200420 - 20200424; ALPBACH; (MOTION PICTURE EXPERT GROUP OR ISO/IEC JTC1/SC29/WG11, 3 April 2020 (2020-04-03)
See also references of EP 4144094A4
SKUPIN R ET AL.: "AHG12: On subpicture conformance", 130. MPEG MEETING; 20200420 - 20200424; ALPBACH; (MOTION PICTURE EXPERT GROUP OR ISO/IEC JTC1/SC29/WG11, 4 April 2020 (2020-04-04)
HE (QUALCOMM) Y ET AL.: "AHG9: On sub-bitstream extraction", 130. MPEG MEETING; 20200420 - 20200424; ALPBACH; (MOTION PICTURE EXPERT GROUP OR ISO/IEC JTC1/SC29/WG11, 3 April 2020 (2020-04-03)
See also references of EP 4144094A4
Attorney, Agent or Firm:
LIU, SHEN & ASSOCIATES (CN)
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