Method, device and communication device for video data transmission
A technology for video data transmission and communication equipment, applied in the terminal field, can solve the problems of unable to transmit video data, unable to establish a video transmission channel, excluding the frequency of video calls, etc.
Active Publication Date: 2013-03-20
HUAWEI DEVICE CO LTD
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Problems solved by technology
[0005] When establishing a video data transmission channel, if B's media capability information and A's media capability information include the same audio call frequency, but B's media capability information and A's media capability information do not include the same video call frequency; Or, B's media capability information does not include video call frequency; or, A's media capability information does not include video call frequency; or, A's media capability information and B's media capability information do not include video call frequency; then A and B A video transmission channel cannot be established between A and B, and video data cannot be transmitted between A and B
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[0056] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0057] figure 1 It is a flowchart of a video data transmission method provided by an embodiment of the present invention, see figure 1 , the example includes:
[0058] 101: The second communication device receives a video call request sent by the first communication device, where the video call request carries media capability information of the first communication device;
[0059] Wherein, both the first communication device and the second communication device may be devices with communication capabilities.
[0060] The media capability information of the first communication device includes at least an audio call frequency. Further, the media capability information of the first communication device may further include an audio call ...
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The invention discloses a method, device and communication device for video data transmission and belongs to the field of terminals. The method comprises enabling a second communication device to receive video call requests sent by a first communication device; judging whether media capability information of the first communication device is matched with media capability information of a second communication device; and when the media capability information of the second communication device is mismatched with the media capability information of the first communication device and the media capability information of the second communication device and the media capability information of the first communication device comprise the same audio frequency call requests, building session description protocol (SDP) response information, sending the SDP response information to the first communication device, and enabling the first communication device and the second communication device to transmit video data. By building the SDP response information, the video data can be transmitted between the first communication device and the second communication device.
Description
technical field [0001] The present invention relates to the field of terminals, in particular to a video data transmission method, device and communication equipment. Background technique [0002] With the development of terminal data services, there are more and more packet domain data services. Video calls are one of the typical packet domain data services. How to ensure the normal transmission of video data has become the focus of the industry. [0003] In the prior art, when A calls B, A sends a video call request to B, and the video call request carries A's media capability information, and the media capability information includes A's audio call frequency and video call frequency, when When B receives the video call request sent by A, it matches A's media capability information according to B's media capability information. When B's media capability information and A's media capability information contain the same audio call frequency, B's media capability information ...
Claims
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Login to View More IPC IPC(8): H04N7/14
CPCH04N7/14H04L65/10H04L65/1069H04N7/147H04L65/756
Inventor 李科欣王林
Owner HUAWEI DEVICE CO LTD