Method and apparatus for encoding/decoding video
AssigneeSK Telecom Co., Ltd.
InventorsJeong-yeon Lim, Jae Seob Shin, Sun Young Lee, Se Hoon Son, Tae Young Na, Jae Il Kim
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Abstract
Disclosed is a method and apparatus for encoding/decoding a video. According to an embodiment, provided is a method of setting a level for each of one or more regions, including decoding a definition syntax element related to level definition and a designation syntax element related to target designation from a bitstream; defining one or more levels based on the definition syntax element; and setting a target level designated by the designation syntax element among the defined levels for a target region designated by the designation syntax element.
Claims12
An apparatus for decoding, from an SEI (supplemental enhancement information) message of a bitstream, level information for each of a plurality of regions partitioned from each of pictures included in a video sequence, the level information being information for defining a level of decoding capability of the apparatus including maximum resolution up to which the apparatus is processible, the apparatus comprising a processor configured to:
- decode default level information for defining at least one default level;
- decode a first flag indicating whether extra information is defined, wherein the extra information is associated with the default level information, and is used for setting a level corresponding to the region;
- decode the extra information depending on the first flag;
- and
- set the level corresponding to the region using the default level information and the extra information.
A video encoding apparatus for encoding, into an SEI (supplemental enhancement information) message of a bitstream, level information for each of a plurality of regions partitioned from each of pictures included in a video sequence, the level information being information for defining a level of decoding capability of a video decoding apparatus including maximum resolution up to which the video decoding apparatus is processible, the video encoding apparatus comprising a processor configured to:
- encode default level information for defining at least one default level;
- encode a first flag indicating whether extra information is defined, wherein the extra information is associated with the default level information, and is used for setting a level corresponding to the region;
- depending on the first flag, encode the extra information such that the video decoding apparatus sets the level corresponding to the region using the default level information and the extra information.
A method for containing level information for each of a plurality of regions partitioned from each of pictures included in a video sequence, the level information being information for defining a level of decoding capability of a video decoding apparatus including maximum resolution up to which the video decoding apparatus is processible, the method comprising:
- generating the bitstream by encoding the level information into an SEI (supplemental enhancement information) message;
- and
- storing the bitstream in a non-transitory recording medium,
- wherein the encoding of the level information comprises:
- encoding a first flag indicating whether extra information is defined, and default level information for defining at least one default level,
- wherein
- the extra information is associated with the default level information, and is used for setting a level corresponding to the region;
- and
- depending on the first flag, encoding the extra information such that the video decoding apparatus sets the level corresponding to the region using the default level information and the extra information.
Dependencies are inferred from the claim text.