KR960036687A - Playback time information generator for system encoder - Google Patents

Playback time information generator for system encoder Download PDF

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Publication number
KR960036687A
KR960036687A KR1019950005429A KR19950005429A KR960036687A KR 960036687 A KR960036687 A KR 960036687A KR 1019950005429 A KR1019950005429 A KR 1019950005429A KR 19950005429 A KR19950005429 A KR 19950005429A KR 960036687 A KR960036687 A KR 960036687A
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South Korea
Prior art keywords
video signal
audio signal
frames
signal
outputting
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KR1019950005429A
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Korean (ko)
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KR0154005B1 (en
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김종일
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배순훈
대우전자 주식회사
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Priority to KR1019950005429A priority Critical patent/KR0154005B1/en
Publication of KR960036687A publication Critical patent/KR960036687A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/85—Assembly of content; Generation of multimedia applications
    • H04N21/854—Content authoring
    • H04N21/8547—Content authoring involving timestamps for synchronizing content
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
    • H04N21/4343—Extraction or processing of packetized elementary streams [PES]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/435—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

본 발명에 따른 시스템 부호화기를 위한 재생시간정보 발생장치는 재생시간정보(PTS)를 적절한 시기에 발생 및 삽입하여 부호화함으로서, 부호화된 스트림의 복호화 초기 동작시 보다 빠른 시간내에 각 스트림의 동기를 맞추어 재생할 수 있는데,다수개의 프레임(Frame) 단위로 시작부호(Start Code)를 갖는 비디오 신호를 입력받고, 상기 비디오 신호에 해더(Header)정보가 부가된 제1PES(Packetized Elementary Stream) 패켓(Packet)을 출력하는 제1패켓화부(310)와, 다수개의 프레임 단위로 시작부호를 갖는 오디오 신호를 입력받고, 상기 오디오신호에 해더정보가 부가된 제2PES 패켓을 출력하는 제2패켓화부(20)와, 상기 제1 및 제2패켓화부(310 및 320)로부터 각각 제공되는 제1 및 제2PES 패켓을 패켓화하여 TS(Transport Stream) 패켓을 출력하는 제3 패켓화부(330)를 갖는 시스템 부호화기를 위한 재생시간정보(PTS) 발생장치는, 상기 비디오신호를 입력받고, 상기 비디오신호중 시작부호가 검출될 때 검출신호를 출력하는 시작부호검출부(343)와, 상기 비디오신호를 입력받고, 상기 비디오신호의 프레임수를 카운팅하는 제1카운팅부(410)와, 부가정보로서 비디오신호의 프레임 전송률(Frame-Rate)을 입력받으며, 상기 제1 카운팅부(410)로부터 제공되는 상기 비디오신호의 프레임수를 상기 비디오신호의 프레임 전송률로 제산하고, 상기 제산결과값을 출력하는 제1계산부(420)와, 상기 오디오 신호를 입력받고, 상기 오디오 신호의 프레임수를 카운팅하는 제2카운팅부(430)와, 부가정보로서 오디오신호의 프레임 전송률(Frame-Rate)을 입력받으며, 상기 제2카운팅부(430)로부터 제공되는 상기 오디오신호의 프레임수를 상기 오디오신호의 프레임 전송률로 제산하고, 상기 제산결과값을 출력하는 제2계산부(440)와, 상기 시작부호 검출부로부터 제공되는 검출신호에 응답하여, 상기 제1 및 제2계산부(420 및 440)로부터 각각 제공되는 제산결과값을 디지탈 비트로 변환하고, 상기 변환된 디지탈 비트를 해더정보로서 상기 제1 및 제2 패켓화부(310 및 320)로 각각 출력하는 변환부(450)를 포함한다.The playback time information generator for the system encoder according to the present invention generates and inserts the playback time information (PTS) at an appropriate time, thereby encoding and synchronizing each stream in a faster time than the initial operation of decoding the encoded stream. A video signal having a start code may be input in units of a plurality of frames, and a first packetized elementary stream (PES) packet having header information added to the video signal may be output. A first packetizing unit 310 to receive an audio signal having a start code in units of a plurality of frames, and to output a second PES packet to which header information is added to the audio signal; A system code having a third packetizer 330 for packetizing first and second PES packets provided from the first and second packetizers 310 and 320, respectively, and outputting a TS (Transport Stream) packet. A playback time information (PTS) generating device for a device comprises: a start code detector 343 for receiving the video signal and outputting a detection signal when a start code of the video signal is detected, and receiving the video signal, A first counting unit 410 for counting the number of frames of the signal and a frame rate of the video signal as additional information, and the number of frames of the video signal provided from the first counting unit 410 Is divided by the frame rate of the video signal, the first calculator 420 outputs the division result, and the second counting unit 430 receives the audio signal and counts the number of frames of the audio signal. And a frame rate of an audio signal as additional information, and the frame rate of the audio signal is determined by the number of frames of the audio signal provided from the second counting unit 430. A division provided by the first and second calculation units 420 and 440, respectively, in response to a detection signal provided from the second calculation unit 440 and the start code detection unit for dividing and outputting the division result value. And a conversion unit 450 for converting a result value into digital bits and outputting the converted digital bits to the first and second packetizers 310 and 320 as header information, respectively.

Description

시스템 부호화기를 위한 재생시간정보 발생장치Playback time information generator for system encoder

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 일반적인 시스템 부호화 과정을 도식적으로 설명하기 위한 블럭도, 제3도는 본 발명에 따른 재생시간 부호화장치를 갖는 시스템 부호화기의 동작을 도식적으로 설명하기 위한 블럭도, 제4도는 본 발명에 따른 재생시간정보발생장치의 동작을 도식적으로 설명하기 위한 블럭도.1 is a block diagram schematically illustrating a general system encoding process, FIG. 3 is a block diagram schematically illustrating the operation of a system encoder having a reproduction time encoding apparatus according to the present invention, and FIG. 4 is a reproduction diagram according to the present invention. Block diagram for schematically explaining the operation of the time information generating device.

Claims (2)

다수개의 프레임(Frame) 단위로 시작부호(Start Code)를 갖는 비디오 신호를 입력받고, 상기 비디오 신호에 해더(Header) 정보가 부가된 제1PES(Packetized Elementary Stream) 패켓(Packet)을 출력하는 제1 패켓화부(310)와, 다수개의 프레임 단위로 시작부호를 갖는 오디오 신호를 입력받고, 상기 오디오신호에 해더정보가 부가된 제2PES 패켓을 출력하는 제2패켓화부(320)와, 상기 제1 및 제2패켓화부(310 및 320)로부터 각각 제공되는 제1 및 제2PES 패켓을 패켓화하여 TS(Transport Stream) 패켓을 출력하는 제3패켓화부(330)를 갖는 시스템 부호화기를 위한 재생시간정보(PTS) 발생 장치에 있어서, 상기 비디오신호를 입력받고, 상기 비디오신호중 시작부호가 검출될 때 검출신호를 출력하는 시작부호검출부(343)와; 상기 비디오신호를 입력받고, 상기 비디오신호의 프레임수를 카운팅하는 제1카운팅부(410)와; 부가정보로서 비디오신호의 프레임 전송률(Frame-Rate)을 입력받으며, 상기 제1카운팅부(410)로부터 제공되는 상기 비디오신호의 프레임수를 상기 비디오신호의 프레임 전송률로 제산하고, 상기 제산결과값을 출력하는 제1계산부(420)와; 상기 오디오 신호를 입력받고, 상기 오디오 신호의 프레임수를 카운팅하는 제2카운팅부(430)와; 부가정보로서 오디오신호의 프레임 전송률(Frame-Rate)을 입력받으며, 상기 제2카운팅부(430)로부터 제공되는 상기 오디오신호의 프레임수를 상기 오디오신호의 프레임 전송률로 제산하고, 상기 제산결과값을 출력하는 제2계산부(440)와; 상기 시작부호 검출부로부터 제공되는 검출신호에 응답하여 상기 제1 및 제2 계산부(420 및 440)로부터 각각 제공되는 제산결과값을 디지탈 비트로 변환하고, 상기 변환된 디지탈 비트를 해더정보로서 상기 제1 및 제2 패켓화부(310 및 320)로 각각 출력하는 변환부(450)를 포함하는 것을 특징으로 하는 시스템 부호화기를 위한 재생시간정보 발생장치.A first signal receiving a video signal having a start code in units of a plurality of frames and outputting a first packetized elementary stream (PES) packet to which header information is added to the video signal. A packetizing unit 310, a second packetizing unit 320 that receives an audio signal having a start code in a plurality of frames and outputs a second PES packet to which header information is added to the audio signal; Playback time information (PTS) for a system encoder having a third packetizer 330 for packetizing the first and second PES packets provided from the second packetizers 310 and 320, respectively, and outputting a TS (Transport Stream) packet. A generator comprising: a start code detector (343) for receiving the video signal and outputting a detection signal when a start code of the video signal is detected; A first counting unit 410 for receiving the video signal and counting the number of frames of the video signal; The frame rate of the video signal is received as additional information. The frame rate of the video signal provided by the first counting unit 410 is divided by the frame rate of the video signal. A first calculator 420 for outputting; A second counting unit (430) for receiving the audio signal and counting the number of frames of the audio signal; The frame rate of the audio signal is received as additional information, the frame number of the audio signal provided from the second counting unit 430 is divided by the frame rate of the audio signal, and the division result is calculated. A second calculator 440 for outputting; In response to the detection signal provided from the start code detector, the division result value provided from the first and second calculators 420 and 440, respectively, is converted into digital bits, and the converted digital bits are used as header information. And a converter (450) for outputting to the second packetizer (310 and 320), respectively. 제1항에 있어서, 상기 시작부호는 복호화시 데이터 재생을 독립적으로 수행하는데 이용되는 정보인것을 특징으로 하는 시스템 부호화기를 위한 재생시간정보 발생장치.The apparatus of claim 1, wherein the start code is information used to independently perform data reproduction during decoding. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950005429A 1995-03-16 1995-03-16 Apparatus for generating the presentation time stamp in the system encoder KR0154005B1 (en)

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KR1019950005429A KR0154005B1 (en) 1995-03-16 1995-03-16 Apparatus for generating the presentation time stamp in the system encoder

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KR0154005B1 KR0154005B1 (en) 1998-11-16

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100811962B1 (en) * 2000-04-26 2008-03-10 소니 가부시끼 가이샤 Recording apparatus and method, reproducing apparatus and method, and recording media thereof

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100720584B1 (en) * 2005-05-04 2007-05-22 엘지전자 주식회사 Apparatus for receiving DMB, method for measuring recording time and play time in the same
KR101233169B1 (en) * 2006-04-26 2013-02-15 엘지전자 주식회사 method for calculating playing time of broadcasting media, and terminal for the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100811962B1 (en) * 2000-04-26 2008-03-10 소니 가부시끼 가이샤 Recording apparatus and method, reproducing apparatus and method, and recording media thereof

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