Method and apparatus for transmitting metadata in WFD
First Claim
1. A method for transmitting metadata in a WiFi display (WFD), the method comprising:
- transmitting, by a WFD source to a WFD sink, a first transport stream in which an audio stream including audio data and a video stream including video data are superimposed and multiplexed;
receiving, by the WFD source from the WFD sink, a first real-time streaming protocol (RTSP) request message for requesting transmission of metadata for the audio data and the video data during the transmission of the first transport stream;
transmitting, by the WFD source to the WFD sink, a first RTSP response message, in response to the first RTSP request message, during the transmission of the first transport stream; and
transmitting, by the WFD source to the WFD sink, a metadata stream including the metadata and a second transport stream in which the audio stream and the video stream are superimposed and multiplexed,wherein the first RTSP request message includes a control format indicating information on a resolution of a video and information on frames per second of the video controlled based on the metadata, andwherein the information on the resolution of the video and the information on the frames per second of the video are streamed and included in the first transport stream.
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Accused Products
Abstract
Provided are a method and an apparatus for transmitting metadata in a WFD. More particularly, a WFD source transmits, to a WFD sink, a first transmission stream in which an audio stream and a video stream are superimposed and multiplexed. The WFD source receives, from the WFD sink, a first RTSP request message for requesting transmission of metadata for audio data and video data during the transmission of the first transmission stream. The WFD source transmits, to the WFD sink, a first RTSP response message in response to the first RTSP request message during the transmission of the first transmission stream. The WFD source transmits, to the WFD sink, a metadata stream including the metadata and a second transmission stream in which the audio stream and the video stream are superimposed and multiplexed.
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Citations
10 Claims
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1. A method for transmitting metadata in a WiFi display (WFD), the method comprising:
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transmitting, by a WFD source to a WFD sink, a first transport stream in which an audio stream including audio data and a video stream including video data are superimposed and multiplexed; receiving, by the WFD source from the WFD sink, a first real-time streaming protocol (RTSP) request message for requesting transmission of metadata for the audio data and the video data during the transmission of the first transport stream; transmitting, by the WFD source to the WFD sink, a first RTSP response message, in response to the first RTSP request message, during the transmission of the first transport stream; and transmitting, by the WFD source to the WFD sink, a metadata stream including the metadata and a second transport stream in which the audio stream and the video stream are superimposed and multiplexed, wherein the first RTSP request message includes a control format indicating information on a resolution of a video and information on frames per second of the video controlled based on the metadata, and wherein the information on the resolution of the video and the information on the frames per second of the video are streamed and included in the first transport stream. - View Dependent Claims (2, 3, 4, 5)
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6. A WiFi display (WFD) source for transmitting metadata in a WFD, the WFD source comprising:
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a receiver and transmitter; and a processor, operatively coupled to the receiver and transmitter, wherein the processor is configured to; control the transmitter to transmit, to a WFD sink, a first transport stream in which an audio stream including audio data and a video stream including video data are superimposed and multiplexed, control the receiver to receive, from the WFD sink, a first real-time streaming protocol (RTSP) request message for requesting transmission of metadata for the audio data and the video data during the transmission of the first transport stream, control the transmitter to transmit, to the WFD sink, a first RTSP response message, in response to the first RTSP request message, during the transmission of the first transport stream, and control the transmitter to transmit, to the WFD sink, a metadata stream including the metadata and a second transport stream in which the audio stream and the video stream are superimposed and multiplexed, wherein the first RTSP request message includes a control format indicating information on a resolution of a video and information on frames per second of the video controlled based on the metadata, and wherein the information on the resolution of the video and the information on the frames per second of the video are streamed and included in the first transport stream. - View Dependent Claims (7, 8, 9, 10)
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Specification