Recording medium, playback device, and playback method
AssigneePanasonic Intellectual Property Corporation of America
InventorsHiroshi Yahata, Tadamasa Toma
Life of this patent
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Abstract
A recording medium according an aspect of the present disclosure has recorded therein a main video stream where a main video has been encoded, and a sub-video stream where a sub-video, that is to be superimposed on the main video and displayed, has been encoded. The sub-video stream includes bitmap data indicating a design of the sub-video and palette data specifying the display color of the design. The palette data includes first palette data for a first luminance dynamic range (SDR), and second palette data for a second luminance dynamic range (HDR) that is broader than the first dynamic range.
Claims6
A playback method of a playback device that reads out from a recording medium and plays a plurality of High Dynamic Range (HDR) video streams that is encoded video information and that has a wider luminance range than Standard Dynamic Range (SDR), the playback device including:
- a first register storing first information indicating, for each of a plurality of playback formats for the plurality of HDR video streams, whether the playback device corresponds to or not,
- a second register storing second information indicating, for each of the plurality of playback formats for the plurality of HDR video streams, whether a display device connected to the playback device corresponds to or not, and
- a third register storing third information indicating, for each of the plurality of playback formats for the plurality of HDR video streams, a priority of the playback formats based on a user's preference,
- the playback method comprising:
- playing the plurality of HDR video streams using a playback format with a highest priority among the priority indicated by the third information, in a case where the first information and the second information indicate that there are a plurality of playback formats corresponding to both the playback device and the display device for the plurality of HDR video streams.
A playback device that reads out from a recording medium and plays a plurality of High Dynamic Range (HDR) video streams that is encoded video information and that has a wider luminance range than Standard Dynamic Range (SDR), the playback device comprising:
- a first register storing first information indicating, for each of a plurality of playback formats for the plurality of HDR video streams, whether the playback device corresponds to or not;
- a second register storing second information indicating, for each of the plurality of playback formats for the plurality of HDR video streams, whether a display device connected to the playback device corresponds to or not;
- a third register storing third information indicating, for each of the plurality of playback formats for the plurality of HDR video streams, a priority of the playback formats based on a user's preference;
- and
- a playback unit that plays the plurality of HDR video streams using a playback format with a highest priority among the priority indicated by the third information, in a case where the first information and the second information indicate that there are a plurality of playback formats corresponding to both the playback device and the display device for the plurality of HDR video streams.
Dependencies are inferred from the claim text.