Method and device for adapting the video content decoded from elementary streams to the characteristics of a display

Abstract

The present disclosure relates to a method and device for adapting a video content decoded from elementary streams to the characteristics of a display from at least one type of metadata giving information regarding said elementary streams. Such a method comprises: —obtaining (102) an additional information (HDR DESCR.) indicating the presence of one particular type of metadata; —determining if said video content decoded from elementary streams is displayable on said display (11) from said additional information (HDR DESCR.) and the characteristics of the display (EDID); and —if said video content decoded from elementary streams is determined as being displayable, selecting (105) a process from said additional information and the characteristics of the display and adapting (106) the video content according to the selected process.

1 - 13 . (canceled) 
     
     
         14 . A method comprising:
 obtaining video data;   obtaining, from the video data, High Dynamic Range dynamic metadata comprising information representative of content adaptation parameters and of refresh information of the High Dynamic Range dynamic metadata;   obtaining display description data comprising characteristics of the display, wherein the characteristics comprise one or more formats supported by the display;   based on the High Dynamic Range dynamic metadata and the display description data, determining whether the video content is displayable on the display; and   in response to determining that the video content is displayable on the display:
 obtaining the video content by decoding at least one elementary stream from the video data; and 
 adapting the decoded video content using a content adaptation process selected based on the High Dynamic Range dynamic metadata and the display description data, wherein the content adaptation process is based on the content adaptation parameters obtained according to the refresh information. 
   
     
     
         15 . The method of  claim 14 , wherein the information representative of a refresh rate comprises a maximal refresh period for the dynamic metadata. 
     
     
         16 . The method of  claim 14 , wherein the information representative of a refresh rate comprises a maximal refresh rate for the dynamic metadata. 
     
     
         17 . The method of  claim 14 , wherein the information representative of a refresh rate comprises a minimal refresh period for the dynamic metadata. 
     
     
         18 . The method of  claim 14 , wherein the information representative of a refresh rate comprises a minimal refresh rate for the dynamic metadata. 
     
     
         19 . The method of  claim 14 , wherein the content adaptation parameters comprise parameters descriptive of color primaries, transfer characteristics, and matrix coefficients. 
     
     
         20 . The method of  claim 14 , wherein the High Dynamic Range dynamic metadata is carried by Supplemental Enhancement Information (SEI) messages. 
     
     
         21 . The method of  claim 14 , wherein the High Dynamic Range dynamic metadata comprises Mastering Display Color Volume information as defined in SMPTE Standard ST 2086:2014. 
     
     
         22 . The method of  claim 14 , wherein the High Dynamic Range dynamic metadata comprises Color Remapping Information as defined in SMPTE Standard ST 2094-30. 
     
     
         23 . The method of  claim 14 , wherein the High Dynamic Range dynamic metadata comprises Content Light Level information as defined in CEA Standard “ HDR Static Metadata Extensions  CEA-861.3 January 2015. 
     
     
         24 . The method of  claim 14 , wherein the High Dynamic Range dynamic metadata is obtainable without decoding the video content from an elementary stream that is encapsulated in the transport stream. 
     
     
         25 . The method of  claim 14 , wherein the determining that the video content is displayable on the display occurs before starting to decode the at least one encapsulated elementary stream from the video data. 
     
     
         26 . A device comprising a processor configured to:
 obtain video data;   obtain, from the video data, High Dynamic Range dynamic metadata comprising information representative of content adaptation parameters and of refresh information of the High Dynamic Range dynamic metadata;   obtain display description data comprising characteristics of the display, wherein the characteristics comprise one or more formats supported by the display;   based on the High Dynamic Range dynamic metadata and the display description data, determine whether the video content is displayable on the display; and   in response to determining that the video content is displayable on the display:
 obtain the video content by decoding at least one elementary stream from the video data; and 
 adapt the decoded video content using a content adaptation process selected based on the High Dynamic Range dynamic metadata and the display description data, wherein the content adaptation process is based on the content adaptation parameters obtained according to the refresh information. 
   
     
     
         27 . The device of  claim 26 , wherein the information representative of a refresh rate comprises a maximal refresh period for the dynamic metadata. 
     
     
         28 . The device of  claim 26 , wherein the content adaptation parameters comprise parameters descriptive of color primaries, transfer characteristics, and matrix coefficients. 
     
     
         29 . The device of  claim 26 , wherein the High Dynamic Range dynamic metadata is carried by Supplemental Enhancement Information (SEI) messages. 
     
     
         30 . The device of  claim 26 , wherein the High Dynamic Range dynamic metadata comprises Mastering Display Color Volume information as defined in SMPTE Standard ST 2086:2014. 
     
     
         31 . The device of  claim 26 , wherein the High Dynamic Range dynamic metadata comprises Color Remapping Information as defined in SMPTE Standard ST 2094-30. 
     
     
         32 . The device of  claim 26 , wherein the High Dynamic Range dynamic metadata comprises Content Light Level information as defined in CEA Standard “ HDR Static Metadata Extensions  CEA-861.3 January 2015. 
     
     
         33 . A non-transitory storage medium carrying instructions of program code for executing a method comprising:
 obtaining video data;   obtaining, from the video data, High Dynamic Range dynamic metadata comprising information representative of content adaptation parameters and of refresh information of the High Dynamic Range dynamic metadata;   obtaining display description data comprising characteristics of the display, wherein the characteristics comprise one or more formats supported by the display;   based on the High Dynamic Range dynamic metadata and the display description data, determining whether the video content is displayable on the display; and   in response to determining that the video content is displayable on the display:
 obtaining the video content by decoding at least one elementary stream from the video data; and 
 adapting the decoded video content using a content adaptation process selected based on the High Dynamic Range dynamic metadata and the display description data, wherein the content adaptation process is based on the content adaptation parameters obtained according to the refresh information.