Methods and apparatuses for managing reproduction of text subtitle data
First Claim
1. A method of reproducing text subtitle streams, the method comprising:
- reading at least one text subtitle stream including a style segment and a plurality of presentation segments to which the style segment is applied, the style segment being included in a first packet of the text subtitle stream, the presentation segments being respectively included in a plurality of packets which follow the first packet,the style segment including at least one set of style information, the at least one set of style information including region positioning information for positioning a region in an image, text box positioning information for positioning a text box in the region, and text flow information indicating character progression and line progression of text subtitle data, andeach presentation segment including field information and at least one region subtitle, the field information including presentation start time and presentation end time of the corresponding presentation segment, each region subtitle including the text subtitle data and a region style identifier, the region style identifier identifying one of the at least one set of style information in the style segment to apply to the text subtitle data, identical text flow information being applied to each region subtitle in the corresponding presentation segment when the presentation segment includes a plurality of region subtitles; and
decoding the at least one presentation segment based on the region style identifier of the at least one presentation segment.
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Abstract
In one embodiment, the method includes, receiving at least one text subtitle stream from an external source. Each text subtitle stream includes a style segment and at least one presentation segment associated with the style segment. The style segment includes at least one set of style information, and each set of style information provides region positioning information for positioning a region in an image and a text box including information for positioning a text box in the region. The presentation segment includes at least one region subtitle information, and the region subtitle information includes text subtitle data and a region style identifier. The region style identifier identifies one of the sets of style information in the style segment to apply to the text subtitle data. The text subtitle stream is decoded using style information including region positioning information and text box positioning information.
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Citations
27 Claims
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1. A method of reproducing text subtitle streams, the method comprising:
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reading at least one text subtitle stream including a style segment and a plurality of presentation segments to which the style segment is applied, the style segment being included in a first packet of the text subtitle stream, the presentation segments being respectively included in a plurality of packets which follow the first packet, the style segment including at least one set of style information, the at least one set of style information including region positioning information for positioning a region in an image, text box positioning information for positioning a text box in the region, and text flow information indicating character progression and line progression of text subtitle data, and each presentation segment including field information and at least one region subtitle, the field information including presentation start time and presentation end time of the corresponding presentation segment, each region subtitle including the text subtitle data and a region style identifier, the region style identifier identifying one of the at least one set of style information in the style segment to apply to the text subtitle data, identical text flow information being applied to each region subtitle in the corresponding presentation segment when the presentation segment includes a plurality of region subtitles; and decoding the at least one presentation segment based on the region style identifier of the at least one presentation segment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of recording text subtitle streams, the method comprising:
recording at least one text subtitle stream including a style segment and a plurality of presentation segments to which the style segment is applied, the style segment being included in a first packet of the text subtitle stream, the presentation segments being respectively included in a plurality of packets which follow the first packet, the style segment including at least one set of style information, the at least one set of style information including region positioning information for positioning a region in an image, text box positioning information for positioning a text box in the region, and text flow information indicating character progression and line progression of text subtitle data, and each presentation segment including field information and at least one region subtitle, the field information including presentation start time and presentation end time of the corresponding presentation segment, each region subtitle including the text subtitle data and a region style identifier, the region style identifier identifying one of the at least one set of style information in the style segment to apply to the text subtitle data, identical text flow information being applied to each region subtitle in the corresponding presentation segment when the presentation segment includes a plurality of region subtitles. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A system for decoding text subtitle stream, the system comprising:
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a preloading buffer configured to preload at least one text subtitle stream; a text subtitle decoder configured to decode the text subtitle stream including a style segment and a plurality of presentation segments to which the style segment is applied, the style segment being included in a first packet of the text subtitle stream, the presentation segments being respectively included in a plurality of packets which follow the first packet, the style segment including at least one set of style information, the at least one set of style information including region positioning information for positioning a region in an image, text box positioning information for positioning a text box in the region, and text flow information indicating character progression and line progression of text subtitle data, and each presentation segment including field information and at least one region subtitle, the field information including presentation start time and presentation end time of the corresponding presentation segment, each region subtitle including the text subtitle data and a region style identifier, the region style identifier identifying one of the at least one set of style information in the style segment to apply to the text subtitle data, identical text flow information being applied to each region subtitle in the corresponding presentation segment when the presentation segment includes a plurality of region subtitles. - View Dependent Claims (17, 18, 19, 20, 21)
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22. An apparatus for recording a text subtitle stream, the apparatus comprising:
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a controller configured to record at least one text subtitle stream in a non-transitory computer recording medium, the at least one text subtitle stream including a style segment and a plurality of presentation segments to which the style segment is applied, the style segment being included in a first packet of the text subtitle stream, the presentation segments being respectively included in a plurality of packets which follow the first packet, the style segment including at least one set of style information, the at least one set of style information including region positioning information for positioning a region in an image, text box positioning information for positioning a text box in the region, and text flow information indicating character progression and line progression of text subtitle data, and each presentation segment including field information and at least one region subtitle, the field information presentation start time and presentation end time of the corresponding presentation segment, each region subtitle information including text subtitle data and a region style identifier, the region style identifier identifying one of the at least one set of style information in the style segment to apply to the text subtitle data, identical text flow information being applied to each region subtitle in the corresponding presentation segment when the presentation segment includes a plurality of region subtitles. - View Dependent Claims (23, 24, 25, 26, 27)
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Specification