Method and device for processing multimedia frames

A processing method and multimedia technology, applied in the direction of image communication, selective content distribution, electrical components, etc., can solve the problems of discontinuous picture, unstable code stream, frequent switching, etc., to avoid discontinuous playing picture and good transient state The effect of response
CN104394450BActive Publication Date: 2017-12-29HISENSE BROADBAND MULTIMEDIA TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
HISENSE BROADBAND MULTIMEDIA TECH
Publication Date
2017-12-29

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Abstract

The invention discloses a multimedia frame processing method and device. The method includes: judging whether the time difference of the multimedia frame in the cache queue is mutated, the time difference is the difference between the moment indicated by the display time label of the multimedia frame and the receiving moment of the multimedia frame, and the cache queue is formed by pressing It is composed of N multimedia frames to be processed sorted at the receiving time, and N is an integer; if there are multimedia frames in the cache queue with a sudden change in time difference, perform asynchronous playback processing on the M multimedia frames to be processed in this processing cycle, M The multimedia frames to be processed are the first M multimedia frames arranged in ascending order according to the receiving time in the cache queue; Within the preset threshold, the M multimedia frames to be processed in this processing period are synchronously played. This enables good transient and steady-state response during playback.
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Description

technical field

[0001] The invention relates to the field of multimedia communication, in particular to a method and device for processing multimedia frames. Background technique

[0002] In the digital TV system, the encoder at the transmitting end encodes the audio analog signal or the video analog signal to obtain audio frames or video frames, and the decoder at the receiving end decodes the audio frames or video frames. In order to ensure the normal operation of the encoder at the transmitting end and the decoder at the receiving end, the frequency and phase of the encoder and decoder must be consistent.

[0003] The following describes how the encoder and decoder work.

[0004] At the transmitter, the audio analog signal or video analog signal is sampled, quantized and compressed by the encoder according to the MPEG-2 standard to form an elementary stream ES (Elementary Stream, ES), which is a non-segmented continuous code flow. Divide the ES into segments, add the c...

Claims

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