Display control method, recording medium, display control device
View Patent ↗The present technology relates to a display control method, a recording medium, and a display control device with which a subtitle forced display function can be implemented on the basis of TTML (Timed Text Markup Language). TTML data in which predetermined attribute information pertaining to subtitle forced display is described in a tag defining an element of text is used. At a content playback side, control is performed on the basis of the predetermined attribute information in the TTML data, in such a way that characters based on text data designated by the tag in which the attribute information is written are displayed on a display unit regardless of whether a subtitle display setting is ON or OFF. Owing to this kind of configuration, text data serving as a predetermined text element from among text elements (text data serving as subtitles) within the TTML data can be displayed regardless of whether a subtitle display setting is ON or OFF. In other words, a subtitle forced display function can be implemented on the basis of TTML.
1. A display control method comprising:
generating TTML (Timed Text Markup Language) data in which predetermined attribute information pertaining to subtitle forced display is described in a tag defining an element of text;
recording the TTML data generated by the generation step, on a required recording medium;
inputting the TTML data recorded on the recording medium; and
performing, via processing circuitry and on the basis of the predetermined attribute information in the TTML data input by the input step, control such that characters based on text data designated by the tag in which the attribute information is written are displayed on a display unit regardless of whether a subtitle display setting is ON or OFF,
wherein the portion of characters of the text data being displayed on the display unit is determined based on a location at which the predetermined attribute information is located within the tag,
wherein, in the generation step and when a video image file is being recorded to the recording medium,
TTML data is generated for each subtitle of a different language and only text data is generated as TTML data, and
delivery purpose-data is generated in which the text-only TTML data of each language and a single copy of the video image file are multiplexed.
2. The display control method according to claim 1 , wherein the predetermined attribute information is described in such a way as to indicate whether forced display is ON or OFF in accordance with an attribute value described in association with data that is indicative of the attribute information.
3. The display control method according to claim 2 , wherein,
in the recording step, the delivery purpose-data is recorded on the recording medium, and
in the input step, the video image file is separated from the delivery purpose-data, and also the TTML data for a designated language is selected from among the plurality of TTML data and is input.
4. The display control method according to claim 1 , wherein, in the generation step, the predetermined attribute information is described in a <span> tag.
5. The display control method according to claim 1 , wherein, in the generation step, the predetermined attribute information is described in a <body> tag.
6. The display control method according to claim 1 , wherein, in the generation step, the predetermined attribute information is described in a <div> tag.
7. The display control method according to claim 1 , wherein, in the generation step, the predetermined attribute information is described in a <p> tag.
8. The display control method according to claim 1 , wherein, in the generation step, the predetermined attribute information is described in a <region> tag.
9. A non-transitory computer readable recording medium having computer-readable instructions stored thereon which when executed by a computer cause the computer to perform the method of claim 1 .
10. The display control method according to claim 1 , wherein the video image file is a warning card for unauthorized reproduction of content.
11. The display control method according to claim 10 , where in the video image file is a warning card in each language for unauthorized reproduction of content.
12. A display control device comprising:
circuitry configured to
acquire TTML (Timed Text Markup Language) data in which predetermined attribute information pertaining to subtitle forced display is described in a tag defining an element of text; and
perform on the basis of the predetermined attribute information in the acquired TTML data, control such that characters based on text data designated by the tag in which the attribute information is written are displayed on a display unit regardless of whether a subtitle display setting is ON or OFF,
wherein the portion of characters of the text data being displayed on the display unit is determined based on a location at which the predetermined attribute information is located within the tag,
wherein, when a video image file is being recorded to the recording medium,
TTML data is generated for each subtitle of a different language and only text data is generated as TTML data, and
delivery purpose-data is generated in which the text-only TTML data of each language and a single copy of the video image file are multiplexed.
13. The display control device according to claim 12 , wherein
the predetermined attribute information is described in such a way as to indicate whether forced display is ON or OFF in accordance with an attribute value described in association with data that is indicative of the attribute information, and
the circuitry controls whether subtitle forced display is ON or OFF in accordance with the attribute value.
14. The display control device according to claim 12 , wherein
the circuitry separates the video image file from the delivery purpose-data, and also selects and acquires the TTML data for a designated language from among the plurality of TTML data.