Method Of Transmitting Video Data
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Abstract
A sink device wirelessly transmits a device capability response message to a source device. The device capability response message includes a video information message including at least one video format identification code (VIC) for identifying a video format of video data, which the sink device can display, and a coded video information message including compressing parameters for compressing video data. The VIC includes a VIC for 4k2k video data having 3840 or 4096 effective horizontal pixels and 2160 effective vertical pixels.
45 Citations
18 Claims
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1-9. -9. (canceled)
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10. A sink device for a wireless communication system for wirelessly transmitting video data from a source device to the sink device,
wherein the sink device comprises a first controller for wirelessly transmitting a device capability response message to the source device, the device capability response message including (a) a video information message including at least one video format identification code for identifying a video format of video data, which the sink device can display, and (b) a coded video information message including compressing parameters for compressing video data, and wherein the at least one video format identification code includes at least one video format identification code for 4k2k video data having 3840 or 4096 effective horizontal pixels and 2160 effective vertical pixels.
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13. A source device for a wireless communication system for wirelessly transmitting video data from the source device to a sink device,
wherein the source device comprises a second controller for wirelessly transmitting a stream start notify message to the sink device, and thereafter, wirelessly transmitting first video data to the sink device, the stream start notify message including a video format identification code for identifying a video format of the first video data to be transmitted, and data representing whether or not the first video data is compressed, and wherein the video format identification code for identifying the video format of the first video data is selected from among at least one video format identification code for 4k2k video data having 3840 or 4096 effective horizontal pixels and 2160 effective vertical pixels.
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16. A wireless communication system for wirelessly transmitting video data from a source device to a sink device, the wireless communication system comprising the source device and the sink device,
wherein the sink device comprises a first controller for wirelessly transmitting a device capability response message to the source device, the device capability response message including (a) a video information message including at least one video format identification code for identifying a video format of video data, which the sink device can display, and (b) a coded video information message including compressing parameters for compressing video data, wherein the at least one video format identification code includes at least one video format identification code for 4k2k video data having 3840 or 4096 effective horizontal pixels and 2160 effective vertical pixels, wherein the source device comprises a second controller for wirelessly transmitting a stream start notify message to the sink device, and thereafter, wirelessly transmitting first video data to the sink device, the stream start notify message including a video format identification code for identifying a video format of the first video data to be transmitted, and data representing whether or not the first video data is compressed, and wherein the video format identification code for identifying the video format of the first video data is selected from among the at least one video format identification code.
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17. A video data transmission method of wirelessly transmitting video data from a source device to a sink device, the method including the following steps of:
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by the sink device, wirelessly transmitting a device capability response message to the source device, the device capability response message including (a) a video information message including at least one video format identification code for identifying a video format of video data, which the sink device can display, and (b) a coded video information message including compressing parameters for compressing video data; by the source device, wirelessly receiving the device capability response message, selecting one video format identification code from among the video format identification code included in the device capability response message, generating first video data based on a selected video format identification code, and compressing generated first video data using the compressing parameters; by the source device, wirelessly transmitting a stream start notify message to the sink device, and thereafter, wirelessly transmitting compressed first video data to the sink device, the stream start notify message including the selected video format identification code, and data representing whether or not the first video data is compressed; by the sink device, wirelessly receiving the stream start notify message, and identifying the video format identification code of the first video data and whether or not the first video data is compressed, based on wirelessly received stream start notify message; and by the sink device, wirelessly receiving the first video data, and decompressing the first video data and decoding decompressed first video data based on an identified video format identification code when the first video data is compressed, and decoding the first video data based on the identified video format identification code when the first video data is not compressed, wherein the at least one video format identification code includes at least one video format identification code for 4k2k video data having 3840 or 4096 effective horizontal pixels and 2160 effective vertical pixels. - View Dependent Claims (18)
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Specification