Buffer processing method, apparatus, device and computer storage medium

A device, wherein the device comprises:

• one or more processors;
• a storage for storing one or more programs,
• the one or more programs, when executed by said one or more processors, enable said one or more processors to implement a buffer processing method, wherein the method comprises:
• determining an amplitude of a drop of an available bandwidth of a receiving terminal, and comparing the determined amplitude of the drop of the available bandwidth to a preset first threshold,
• if the determined amplitude of the drop of the available bandwidth exceeds the preset first threshold, determining an amplitude of a drop of a video frame rate of the receiving terminal, and comparing the determined amplitude of the drop of the video frame rate to a preset second threshold, the second threshold being smaller than the first threshold, wherein the available bandwidth of the receiving terminal is determined according to a time when the receiving terminal receives a data frame and a size of the data frame;
• if the amplitude of the drop of the video frame rate of the receiving terminal exceeds the preset second threshold, adjusting a buffer size of the receiving terminal;
• and
• if the amplitude of the drop of the video frame rate of the receiving terminal does not exceed the preset second threshold, keeping the buffer size of the receiving terminal unchanged,
• wherein the adjusting a buffer size of the receiving terminal comprises:
• adjusting the buffer size of the receiving terminal according to the available bandwidth of the receiving terminal, where the buffer size is negatively correlated with the available bandwidth of the receiving terminal, and
• wherein the adjusting the buffer size of the receiving terminal according to the available bandwidth of the receiving terminal comprises:
• determining a maximum and average frame size of data frames received by the receiving terminal within a preset time window, and determining a noise delay after performing Kalman filtering for the noise already received by the receiving terminal;
• estimating a value of a desired buffer size using the available bandwidth of the receiving terminal, the maximum value, the average value and the noise delay;
• and
• adjusting the buffer size of the receiving terminal to the estimated value.

A non-transitory storage medium containing computer executable instructions which, when executed by a computer processor, perform a buffer processing method, wherein the method comprises:

• determining an amplitude of a drop of an available bandwidth of a receiving terminal, and comparing the determined amplitude of the drop of the available bandwidth to a preset first threshold,
• if the determined amplitude of the drop of the available bandwidth exceeds the preset first threshold, determining an amplitude of a drop of a video frame rate of the receiving terminal, and comparing the determined amplitude of the drop of the video frame rate to a preset second threshold, the second threshold being smaller than the first threshold, wherein the available bandwidth of the receiving terminal is determined according to a time when the receiving terminal receives a data frame and a size of the data frame;
• if the amplitude of the drop of the video frame rate of the receiving terminal exceeds the preset second threshold, adjusting a buffer size of the receiving terminal;
• and
• if the amplitude of the drop of the video frame rate of the receiving terminal does not exceed the preset second threshold, keeping the buffer size of the receiving terminal unchanged,
• wherein the adjusting a buffer size of the receiving terminal comprises:
• adjusting the buffer size of the receiving terminal according to the available bandwidth of the receiving terminal, where the buffer size is negatively correlated with the available bandwidth of the receiving terminal, and
• wherein the adjusting the buffer size of the receiving terminal according to the available bandwidth of the receiving terminal comprises:
• determining a maximum and average frame size of data frames received by the receiving terminal within a preset time window, and determining a noise delay after performing Kalman filtering for the noise already received by the receiving terminal;
• estimating a value of a desired buffer size using the available bandwidth of the receiving terminal, the maximum value, the average value and the noise delay;
• and
• adjusting the buffer size of the receiving terminal to the estimated value.