A method and device for displaying terminal recorded files during fast forward and fast rewind

A technology for recording files and displaying methods, which is applied in the field of video playback and can solve problems such as the inability to achieve fast and efficient frame positioning
CN106937160BActive Publication Date: 2019-12-24QINGDAO HISENSE MEDIA NETWORKS CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
QINGDAO HISENSE MEDIA NETWORKS CO LTD
Publication Date
2019-12-24

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Abstract

The invention provides a display method and device for a recording file of a terminal when fast forward and fast backward are carried out. The method comprises the steps of receiving an instruction for recording a file, traversing each ts (Transport Stream) packet in a ts stream in sequence, and if a current ts packet comprises a picture start identifier and a preset frame type identifier, taking the address of the picture start identifier of the current ts packet as a start address of a key frame; searching each follow-up ts packet in sequence, if a target ts packet comprises the picture start identifier, taking the address of the picture start identifier of the target ts packet as an end address of the key frame, until the start address and end address of each key frame in the ts stream are determined; and if an instruction for performing a fast forward function or a fast backward function is received, analyzing data between the start address and the end address of each key frame in the ts stream, thereby displaying the key frames.
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Description

technical field

[0001] The present invention relates to the technical field of video playback, and in particular to a method and device for displaying recorded files of a terminal during fast forward and fast rewind. Background technique

[0002] At present, when playing audio and video files, for example, when implementing functions such as PVR (Personal video recorder, personal video recording), it is usually necessary to perform frame positioning by parsing the I frame. Fast forward and rewind data.

[0003] Existing I frame parsing methods include hard decoding and soft decoding. Among them, hard decoding needs to rely on the platform when used, which is costly and poor in versatility; while soft decoding uses software to decode video data, so the cost is lower and it has higher versatility than hard decoding.

[0004] However, because soft decoding needs to analyze the data of the I, P, and B frames in the ts (Transport Stream) by software, the positioning of the I fr...

Claims

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