Program recording and broadcasting method and device

A program and player technology, applied in the information field, can solve problems such as a large amount of lost audio data, a long time for synchronizing sound and video images, and poor user experience

Inactive Publication Date: 2018-12-21
QINGDAO HISENSE MEDIA NETWORKS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the fast rate of reading audio and video data streams from the file, the amount of data read into the player cache is large, resulting in a large amount of lost audio data, which makes it take a long time to synchronize the sound and video images after switching audio tracks, which brings Very bad user experience

Method used

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  • Program recording and broadcasting method and device
  • Program recording and broadcasting method and device
  • Program recording and broadcasting method and device

Examples

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Embodiment Construction

[0035] The embodiment of the present application provides a program recording and playing method and device, so that when the user plays the recorded file, the player can control and read the Transport Stream (TS) data packet ( Subsequent can be referred to as TS packet) rate, so that when the user performs the action of switching audio tracks, it can avoid the problem that there are many TS data streams stored in the player cache, resulting in more lost audio data, so as to realize the sound and video The effect of fast screen synchronization achieves a good user experience effect.

[0036] The specific introduction is given below:

[0037] What the digital TV set-top box receives is a piece of code stream, which is called TS stream. The TS stream is composed of Packets (packets), and each packet is composed of Packet Header (packet header) and Packet Data (packet data). The TS stream is a bit stream format based on Packet. In the prior art, each packet can be 188 bytes (or...

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Abstract

A program recording,playing method and device are disclosed, when the user plays the recording, the player can control the rate at which TS packets in the recording file are read based on the timestamp information, When the user switches the audio track, the TS data stream stored in the player buffer can be avoided, which leads to the problem of more lost audio data, thereby realizing the effect of fast synchronization of sound and video pictures, and achieving a good user experience effect. A program recording method provided by an embodiment of the present application includes: acquiring a program signal played by a current channel. A recording file is generated based on the program signal, wherein the recording file includes timestamp information for each transport stream TS packet.

Description

technical field [0001] The present application relates to the field of information technology, in particular to a program recording and playing method and device. Background technique [0002] When recording a personal video recorder (PVR) on a TV program, the audio and video information of the current program will be saved to the disk, and when the recorded file is played, the relevant audio and video information will be extracted from the file on the disk for further processing. play. In order to make the video play smoothly, the player will read the audio and video data stream in the file as fast as possible to display the video. If you switch the audio track when playing the recorded file, for example, switch the English audio to the German audio, the player will clear the read cache because it needs to reacquire the packet identifier (PID) after switching the audio track data flow. Due to the fast rate of reading audio and video data streams from the file, the amount...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/236H04N21/433H04N21/434H04N21/8547
CPCH04N21/23605H04N21/4331H04N21/4343H04N21/8547
Inventor 严春霞
Owner QINGDAO HISENSE MEDIA NETWORKS CO LTD
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