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A Method of Recording IP Flow Based on Fragmented Files

A file and fragmentation technology, applied to electrical components, color TV parts, TV system parts, etc., can solve the problems of large final files, discontinuous video and audio data, unavailable final recorded files, etc.

Active Publication Date: 2019-03-19
BEIJING DAYANG TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the interference and jitter of the network, the IP recording will cause discontinuity of video and audio data or errors such as bit errors. During the 24-hour uninterrupted recording of the signal, it will lead to the unavailability of the final recorded file, and even if it is available, it will eventually The file will also be very large, which is not conducive to later use

Method used

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  • A Method of Recording IP Flow Based on Fragmented Files
  • A Method of Recording IP Flow Based on Fragmented Files
  • A Method of Recording IP Flow Based on Fragmented Files

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A method for recording IP streams based on fragmented files, the system used in the method includes: a plurality of clients, a plurality of clients connected to a streaming media service end formed by a server cluster through a network, and the streaming media The server is connected to the video information source, such as figure 1 shown.

[0041] Video information source is a general term for various video information output sources, including: video signals from other TV stations transmitted by satellite or cable, video signals received from other TV stations on the ground, video signals on existing tapes, CDs, and video signals on the Internet. The types of these video signals are different, and they can be IP streaming signals, or video signals such as SDI and ASI.

[0042] The receiving layer, stream processing layer and service layer are set in the streaming media server.

[0043] Receive layer:

[0044] The receiver layer receives and processes recorded signa...

Embodiment 2

[0062] This embodiment is an improvement of the first embodiment, and is a refinement of the "step of receiving signals" of the first embodiment. The "signal receiving step" described in this embodiment includes the following sub-steps:

[0063] The sub-step of signal type judgment: it is used to judge whether the received signal is an IP flow signal, if yes, enter the "flow analysis step", if not, enter the next sub-step.

[0064] The sub-step of decoding: it is used to decode according to the signal data type to form the original video and audio signal.

[0065] Encoding sub-step: used to encode the original video and audio signal into an IP stream signal, and then enter the "stream analysis step".

Embodiment 3

[0067] This embodiment is an improvement of the first embodiment, and it is a refinement of the first embodiment about "flow analysis steps". The "steps of stream analysis" described in this embodiment include the following sub-steps:

[0068] Consistency detection sub-step: used to detect whether the PSI information in the TS stream is consistent. If the PSI information changes, it means that the signal of the TS stream has changed at this time, and the video and audio data needs to be segmented here to ensure that the front and rear TS stream data Independent of each other, the files are available.

[0069] The sub-step of continuity detection: it is used to detect the continuity of current TS flow data PCR and DTS / PTS. The stream detection in the first embodiment takes the TS stream as an example. First, check whether the PSI information in the TS stream is consistent. If the PSI information changes, it means that the signal of the TS stream has changed, and the video and ...

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PUM

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Abstract

The invention relates to an IP stream collection method based on fragmented files, comprising: signal reception; stream detection; stream analysis; stream slicing; stream collection; target file detection; file repair; file service. The present invention reduces the risk of unusable overall files caused by IP network data abnormality by judging the continuity of PCR and PTS / DTS, and adopting the IP fragmentation collection method of segmented files. IP fragmentation collection can not only realize 24-hour collection of signals, but also minimize the impact of signal problems. Using fragmented collection, the video and audio data in the time period of the problem signal can be separated to the greatest extent, and the entire file will not be unavailable due to the recording of video and audio data with wrong time stamps and other problems.

Description

technical field [0001] The invention relates to a method for recording IP streams based on fragmented files, which is a method for file transmission in a network and a method for recording external digital signals in a digital system of a television station. Background technique [0002] With the increasing popularity of digital broadcasting and high-definition technology and the rapid development of new media services, as the starting point of the entire process of digital media editing, storage, management, and publishing, the development of signal acquisition and data recording equipment has experienced a small amount of analog AV signal, in the stage of digital transformation, is now facing the rapid development of IP, mass quantization and standard definition to high definition. [0003] In the traditional signal recording system, the radio frequency signal is decoded into SDI signal, ASI signal and AV analog signal by the decoding equipment. After passing through the c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/233H04N21/234H04N21/845H04L29/06H04N5/76
CPCH04N5/76H04N21/233H04N21/234H04N21/23418H04N21/845H04L65/61H04L65/762
Inventor 栾晓林禇震宇王玉珍温雷霆
Owner BEIJING DAYANG TECH DEV
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