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Method and device for transmitting multimedia data

A technology of multimedia data and frame data, applied in the field of communication, can solve the problem that the receiving end cannot receive multimedia data and affect the use of multimedia data, so as to reduce the capacity and improve the transmission efficiency.

Active Publication Date: 2017-02-15
GUANGZHOU HUADUO NETWORK TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The upload method adopts a relatively extreme way of completely cutting off the packet loss problem, which will cause the receiving end to be unable to receive multimedia data within a certain period of time, and affect the use of multimedia data by the receiving end

Method used

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  • Method and device for transmitting multimedia data
  • Method and device for transmitting multimedia data

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] The embodiment of the present invention provides a method for transmitting multimedia data, see figure 1 , the method flow includes:

[0047] 101: Receive the detection data sent by the multimedia data receiving end, where the detection data includes at least a packet loss rate;

[0048] 102: When the detected data is greater than the preset threshold, select the first non-reference frame to be discarded from the multimedia data to be transmitted;

[0049] 103: Send the frame data except the first non-reference frame in the multimedia data to be transmitted to the multimedia data receiving end.

[0050] In the embodiment of the present invention, when the monitoring data fed back by the multimedia data receiving end is greater than the preset threshold, the non-reference frames in the multimedia data to be transmitted are actively discarded, so as not to affect the decoding of other frame data after the receiving end receives the multimedia data; in addition On the on...

Embodiment 2

[0052] The embodiment of the present invention provides a method for transmitting multimedia data, see figure 2 , the method flow includes:

[0053] 201: The multimedia data receiving end detects the current network status in real time, and generates detection data to send to the multimedia data sending end.

[0054] Among them, detecting the network status and calculating the acceptance capability of the receiving end can perform detection of various parameters. For example, in the embodiment of the present invention, the packet loss rate is used as an example for illustration.

[0055]Among them, in a certain transmission period, for example, the transmission period is 1 second, the number of packet loss loss_num and the number of received packets rec_num are detected, and the packet loss rate is set as loss_rate, so the calculation formula of the packet loss rate can be as follows:

[0056]

[0057] Further, data such as network delay can also be detected as detection ...

Embodiment 3

[0090] An embodiment of the present invention provides a device for transmitting multimedia data, see Image 6 , the device consists of:

[0091] The receiving module 601 is configured to receive the detection data sent by the multimedia data receiving end, the detection data at least includes a packet loss rate;

[0092] The selection module 602 is used to select the first non-reference frame that needs to be discarded in the multimedia data to be transmitted when the detected data is greater than the preset threshold;

[0093] The first transmission module 603 is configured to send the frame data except the first non-reference frame in the multimedia data to be transmitted to the multimedia data receiving end.

[0094] Wherein, the selection module 602 includes:

[0095] A determining unit, configured to determine the number of first non-reference frames that need to be discarded according to the second non-reference frames in the multimedia data transmitted in the previou...

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Abstract

The invention discloses a method and a device for transmitting multimedia data, belonging to the technical field of communication. The method includes: receiving detection data sent by a multimedia data receiving end, the detection data at least including a packet loss rate; when the detection data is greater than a preset threshold, selecting the first data to be discarded from the multimedia data to be transmitted A non-reference frame; sending frame data in the multimedia data to be transmitted except the first non-reference frame to the institute. The present invention actively discards the non-reference frames in the multimedia data to be transmitted when the monitoring data fed back by the multimedia data receiving end is greater than the preset threshold, so as not to affect the decoding of other frame data after the receiving end receives the multimedia data; on the other hand After actively discarding some non-reference frame data, the capacity of multimedia data in each transmission cycle is reduced, and the transmission efficiency of the receiving end is improved.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and device for transmitting multimedia data. Background technique [0002] With the development of communication technology and multimedia technology, the way that the sharer transmits multimedia data to the receiver in real time through the network has become a relatively mature network sharing method, which is widely used in people's work and life. When the network environment is bad or the bandwidth is extremely low, packet loss will occur when transmitting multimedia data, and packet loss will greatly affect the quality of multimedia data. [0003] In the traditional solution to deal with the above packet loss situation, the receiving end of the multimedia data monitors the current delay status, and periodically returns the delay status parameter to the sending end of the multimedia data. After the sending end receives the delay status parameter, it Compare w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24H04L12/26H04L12/823H04L47/32
Inventor 李青
Owner GUANGZHOU HUADUO NETWORK TECH
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