Recording medium, playback method, and playback device
地域：
CA
CA Torrance
摘要
A recording medium includes a video stream of a standard-luminance range and a video stream of high-luminance range, which are used selectively in accordance with a playback environment. The recording medium also includes a subtitle stream of the standard-luminance range and a subtitle stream of the high-luminance range, which are used selectively in accordance with the playback environment. A playlist file includes a management region where playback control information relating to a main stream is stored, and includes an extended region. The management region stores first playback control information specifying playing of the video stream of the high-luminance range and the subtitle stream of the high-luminance range in combination. The extended region stores second playback control information specifying playing of the video stream of the standard-luminance range and the subtitle stream of the standard-luminance range in combination.
說明書
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This is a continuation application of U.S. patent application Ser. No. 15/471,032, filed Mar. 28, 2017, which is a continuation of International Patent Application No. PCT/JP2015/005001, filed Oct. 1, 2015, which claims the benefit of U.S. Provisional Patent Application No. 62/065,034, filed Oct. 17, 2014, and priority to Japanese Application No. 2015-148672, filed Jul. 28, 2015. The disclosures of these documents, including the specifications, drawings, and claims, are incorporated herein by reference in their entirety.
The present disclosure relates to a recording medium in which is recorded an encoded video stream, a playback method of the video stream, and a playback device.
Technology relating to digital versatile discs (DVD) has conventionally been disclosed (e.g., Japanese Unexamined Patent Application Publication No. 9-282848).
權利要求
What is claimed is:1. A playback device that reads out and plays a content from a recording medium in which are recordeda video stream of standard-luminance range, and a video stream of high-luminance range that is a broader luminance range than the standard-luminance range, a subtitle stream of the standard-luminance range, and a subtitle stream of the high-luminance range, an audio stream, and playlist file storing playback control information of the content, and including a management region and an extended region, the management region storing first playback control information specifying that the video stream of the high-luminance range, the subtitle stream of the high-luminance range, and the audio stream are to be played in combination, and the extended region storing second playback control information specifying that the video stream of the standard-luminance range, the subtitle stream of the standard-luminance range, and the audio stream are to be played in combination, wherein either video streams specified in the first playback control information or video streams specified in the second playback control information are played, the playback device comprising:a video player thatreads out and plays the video stream of the high-luminance range and the subtitle stream of the high-luminance range, based on the first playback control information, in a case of playing the content as a content of the high-luminance range, and reads out and plays the video stream of the standard-luminance range and the subtitle stream of the standard-luminance range, based on the second playback control information, in a case of playing the content as a content of the standard-luminance range. 2. The playback device according to claim 1 ,wherein part of the second playback control information has a common data structure with the first playback control information. 3. The playback device according to claim 1 ,wherein the audio stream specified on the management region and the extended region are identical. 4. A playback method of reading out and playing a content from a recording medium in which are recordeda video stream of standard-luminance range, and a video stream of high-luminance range that is a broader luminance range than the standard-luminance range, a subtitle stream of the standard-luminance range, and a subtitle stream of the high-luminance range, an audio stream, and a playlist file storing playback control information of the content, and including a management region and an extended region, the management region storing first playback control information specifying that the video stream of the high-luminance range, the subtitle stream of the high-luminance range, and the audio stream are to be played in combination, and the extended region storing second playback control information specifying that the video stream of the standard-luminance range, the subtitle stream of the standard-luminance range, and the audio stream are to be played in combination, wherein either video streams specified in the first playback control information or video streams specified in the second playback control information are played, the playback method comprising:reading out and playing the video stream of the high-luminance range and the subtitle stream of the high-luminance range, based on the first playback control information, in a case of playing the content as a content of the high-luminance range; and reading out and playing the video stream of the standard-luminance range and the subtitle stream of the standard-luminance range, based on the second playback control information, in a case of playing the content as a content of the standard-luminance range. 5. The playback method according to claim 4 ,wherein part of the second playback control information has a common data structure with the first playback control information. 6. The playback method according to claim 4 ,wherein the audio stream specified on the management region and the extended region are identical.
意見反饋