KR970057902A - PTS Control in MPEG Transport Stream Encoder - Google Patents

PTS Control in MPEG Transport Stream Encoder Download PDF

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Publication number
KR970057902A
KR970057902A KR1019950064318A KR19950064318A KR970057902A KR 970057902 A KR970057902 A KR 970057902A KR 1019950064318 A KR1019950064318 A KR 1019950064318A KR 19950064318 A KR19950064318 A KR 19950064318A KR 970057902 A KR970057902 A KR 970057902A
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KR
South Korea
Prior art keywords
encoder
pts
decoder
transport stream
value
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Application number
KR1019950064318A
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Korean (ko)
Inventor
김종일
Original Assignee
배순훈
대우전자 주식회사
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Priority to KR1019950064318A priority Critical patent/KR970057902A/en
Publication of KR970057902A publication Critical patent/KR970057902A/en

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Abstract

본 발명은 시스템 부호화시, 복호화기에서 정확한 PCR값을 근거로 하여 모든 데이타를 복호화하고 재생할 수 있도록 된 MPEG 전송스트림 인코더에서 PTS 조절장치에 관한 것으로, 이를 해결하기 위하여, 시스템 인코딩시 복호화기에서 PTS 값을 기준으로 하여 데이타를 복호화하고 재생하는 조절장치에 있어서, 엘리멘트 스트림 디코더(51)로부터 출력되는 엘리멘트 스트림을 전송 스트림으로 인코딩 변환하여 출력하는 시스템 인코더(52)(53)와; 상기 시스템 인코더(52)(53)의 출력을 전송채널로 전달하는 전송버퍼(54)와; 상기 전송버퍼(54)의 상태에 따라 PCR 데이타 값을 제공하는 인코더 클럭시스템(55)과; PTS 요구신호와 상기 인코더 클럭시스템(55)의 PCR 데이타에 의거하여 새로운 PCR 데이타를 상기 시스템 인코더의 전송패킷 타이저(53)로 제공하는 PCR 계산부(56)를 포함함으로써 종래의 인코더에서 PCR의 값이 제대로 계산되지 않으면, 디코더 시스템에서 시간 기준값을 제대로 복원하지 못하므로 디코더 시스템 전체가 불안해지는 단점을 해결하였다.The present invention relates to an apparatus for controlling a PTS in an MPEG transport stream encoder that can decode and reproduce all data based on an accurate PCR value in a decoder during system encoding. To solve this problem, a PTS in a decoder during system encoding is solved. An apparatus for decoding and reproducing data on the basis of a value, comprising: a system encoder (52) (53) for encoding and converting an element stream output from the element stream decoder (51) into a transport stream; A transmission buffer 54 for transmitting the output of the system encoders 52 and 53 to a transmission channel; An encoder clock system 55 for providing a PCR data value according to the state of the transmission buffer 54; In accordance with the PTS request signal and the PCR data of the encoder clock system 55, the PCR calculation unit 56 provides new PCR data to the transmission packetizer 53 of the system encoder. If the value is not properly calculated, the decoder system does not properly restore the time reference value, which solves the disadvantage of the entire decoder system.

Description

엠펙(MPEG) 전송스트림 인코더에서의 피티에스(PTS) 조절장치PTS Control in MPEG Transport Stream Encoder

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 ISO/IEC 시스템에서 전송 스트림의 인코더를 개략적으로 도시한 블럭 구성도,1 is a block diagram schematically illustrating an encoder of a transport stream in an ISO / IEC system;

제2도는 에리멘트 스트림,패킷타이저 및 PES 패킷을 설명한 도면,2 is a diagram illustrating an elementary stream, a packetizer and a PES packet;

제3도 및 제4도는 패킷의 구성 및 전송 스트림의 구성도,3 and 4 show the structure of a packet and the structure of a transport stream,

제5도는 본 발명의 PCS의 초기값을 조절하는 장치를 도시한 블럭 구성도,5 is a block diagram showing an apparatus for adjusting the initial value of the PCS of the present invention;

제6도는 본 발명의 실시예를 설명하기 위해 도시한 블럭 구성도.6 is a block diagram illustrating the embodiment of the present invention.

Claims (1)

시스템 인코딩시 복호화기에서 PTS 값을 기준으로 하여 데이타를 복호화하고 재생하는 조절장치에 있어서, 엘리멘트 스트림 디코더(51)로부터 출력되는 엘리멘트 스트림을 전송 스트림으로 인코딩 변환하여 출력하는 시스템 인코더(52)(53)와; 상기 시스템 인코더(52)(53)의 출력을 전송채널로 전달하는 전송버퍼(54)와; 상기 전송버퍼(54)의 상태에 따라 PCR 데이타 값을 제공하는 인코더 클럭시스템(55)과; PTS 요구신호와 상기 인코더 클럭시스템(55)의 PCR 데이타에 의거하여 새로운 PCR 데이타를 상기 시스템 인코더의 전송패킷 타이저(53)로 제공하는 PCR 계산부(56)를 포함함을 특징으로 하는 엠펙(MPEG) 전송스트림 인코더에서의 피티에스(PTS) 조절장치.An apparatus for decoding and reproducing data on the basis of a PTS value in a decoder at the time of system encoding, wherein the system encoder 52 (53) 53 converts and outputs an element stream output from the element stream decoder 51 into a transport stream. )Wow; A transmission buffer 54 for transmitting the output of the system encoders 52 and 53 to a transmission channel; An encoder clock system 55 for providing a PCR data value according to the state of the transmission buffer 54; The MPEG calculation unit 56 provides new PCR data to the transmission packetizer 53 of the system encoder based on the PTS request signal and the PCR data of the encoder clock system 55. MPEG (PTS) Control in Transport Stream Encoder. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950064318A 1995-12-29 1995-12-29 PTS Control in MPEG Transport Stream Encoder KR970057902A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950064318A KR970057902A (en) 1995-12-29 1995-12-29 PTS Control in MPEG Transport Stream Encoder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950064318A KR970057902A (en) 1995-12-29 1995-12-29 PTS Control in MPEG Transport Stream Encoder

Publications (1)

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KR970057902A true KR970057902A (en) 1997-07-31

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