mpeg-1 wikipedia - EAS

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  1. MPEG-1 is a standard for lossy compression of video and audio. It is designed to compress VHS -quality raw digital video and CD audio down to about 1.5 Mbit/s (26:1 and 6:1 compression ratios respectively) without excessive quality loss, making video CDs, digital cable / satellite TV and digital audio broadcasting (DAB) practical.
    Developed by: MPEG (part of ISO/IEC JTC 1)
    Initial release: 6 December 1991; 30 years ago
    Latest release: ISO/IEC TR 11172-5:1998, October 1998; 23 years ago
    Standard: ISO/IEC 11172

    MPEG-1 - Wikipedia

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    What is MPEG-1?
    The MPEG-1 standard is published as ISO / IEC 11172 – Information technology—Coding of moving pictures and associated audio for digital storage media at up to about 1.5 Mbit/s. The standard consists of the following five Parts:

    MPEG-1 - Wikipedia

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    What is the bitrate of MPEG 1 video?
    MPEG-1 supports resolutions up to 4095×4095 (12 bits), and bit rates up to 100 Mbit/s. MPEG-1 videos are most commonly seen using Source Input Format (SIF) resolution: 352×240, 352×288, or 320×240.

    MPEG-1 - Wikipedia

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    What is the difference between MPEG-1 Audio and MPEG-2 Audio?
    The MPEG-2 standard includes several extensions to MPEG-1 Audio. These are known as MPEG-2 BC – backwards compatible with MPEG-1 Audio. MPEG-2 Audio is defined in ISO/IEC 13818-3. MPEG Multichannel – Backward compatible 5.1-channel surround sound. These sampling rates are exactly half that of those originally defined for MPEG-1 Audio.

    MPEG-1 - Wikipedia

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    What is an I-frame-only MPEG-1 video?
    For this reason, I-frame-only MPEG videos are used in editing applications. I-frame only compression is very fast, but produces very large file sizes: a factor of 3× (or more) larger than normally encoded MPEG-1 video, depending on how temporally complex a specific video is. I-frame only MPEG-1 video is very similar to MJPEG video.

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    MPEG-1 - Wikipedia

    https://en.wikipedia.org/wiki/MPEG-1

    MPEG-1 is a standard for lossy compression of video and audio. It is designed to compress VHS-quality raw digital video and CD audio down to about 1.5 Mbit/s (26:1 and 6:1 compression ratios respectively) without excessive quality loss, making video CDs, digital cable/satellite TV and digital audio

     ...

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    History

    The predecessor of MPEG-1 for video coding was the H.261 standard produced by the CCITT (now known as the ITU-T). The basic architecture established in H.261 was the motion-compensated DCThybrid video coding structure. It

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    Patents

    Due to its age, MPEG-1 is no longer covered by any essential patents and can thus be used without obtaining a licence or paying any fees. The ISO patent database lists one patent for ISO 11172, US 4,472,747, which expired in 2003. The near-complete draft of the

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    Applications

    • Most popular software for video playback includes MPEG-1 decoding, in addition to any other supported formats.
    • The popularity of

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    Part 1: Systems

    Part 1 of the MPEG-1 standard covers systems, and is defined in ISO/IEC-11172-1.
    MPEG-1 Systems

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    Part 3: Audio

    Part 3 of the MPEG-1 standard covers audio and is defined in ISO/IEC-11172-3.
    MPEG-1 Audio utilizes psychoacousticsto significantly reduce the data rate required by an audio stream. It

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    Part 4: Conformance testing

    Part 4 of the MPEG-1 standard covers conformance testing, and is defined in ISO/IEC-11172-4.
    Conformance: Procedures for testing conformance.
    Provides two sets of guidelines and reference bitstreams for

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    Part 2: Video

    Part 2 of the MPEG-1 standard covers video and is defined in ISO/IEC-11172-2. The design was heavily influenced by H.261.
    MPEG-1 Video exploits

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  4. MPEG-1 - Wikipedia

    https://ro.wikipedia.org/wiki/MPEG-1

    MPEG-1 este un standard lossy (cu pierdere de date) pentru compresie audio și video publicat în anul 1992 ca ISO/IEC 11172 de către MPEG (Moving Picture Experts Group).
    MPEG-1 a apărut din nevoia unui format comun pentru formatele video și audio comprimate pe medii de stocare ca discuri optice și magnetice. Codarea se face pentru o viteză maximă de 1,5 Mbit/s care corespunde la rata de transfer a unui CD-ROM.

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  5. MPEG-1 – Wikipedia

    https://de.wikipedia.org/wiki/MPEG-1
    • Das Bildformat von MPEG-1 ähnelt dem JPEG-Format. Die Parameter werden allerdings genau festgelegt: 1. Bildgröße maximal 768 × 576 Pixel 2. Verhältnis der Höhe zu Breite der Pixel (14 Seitenverhältnisse definiert) 3. Bildwechselfrequenz in Hertz 4. Bilder liegen im YCbCr-Format als 3×8-bit-Werte pro Pixel vor: 4.1. Y: Luminanz/Helligkeitskomponente (16: schwarz, 223: weiß) 4.…
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    • MPEG-1 – Wikipedia

      https://sv.wikipedia.org/wiki/MPEG-1

      MPEG-1 är en grupp av standarder för kodning och komprimering av ljud och video från Moving Picture Experts Group.MPEG-1 video används i Video CD formatet. MPEG-1 audio layer 3 är det fullständiga namnet på det populära ljudformatet MP3.Då billigare och kraftfullare hårdvara för avkodning har blivit tillgänglig för konsumenter så har det utvecklats mera avancerade format …

      • Utökad från: JPEG, H.261
      • Filändelse: .mpg, .mpeg, .mp1, .mp2, .mp3, .m1v, .m1a, .m2a, .mpa, .mpv
      • Utvecklad av: ISO, IEC
      • MIME-typ: audio/mpeg, video/mpeg

    • MPEG-1 - Wikipedia

      https://it.wikipedia.org/wiki/MPEG-1
      • L'algoritmo di compressione video in MPEG-1 opera su sequenze di fotogrammi (o frame), ciascuno dei quali è rappresentato come una matrice di pixel. Ad ogni pixel è associata una terna di valori (Y,Cb,Cr) che ne descrive le coordinate nello spazio di colori YCbCr. Le componenti di crominanza (Cb e Cr) sono sottocampionate nello spazio di un fattore 4:1, per ridurre l'occupazi…
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      • MPEG-1 – Wikipedie

        https://cs.wikipedia.org/wiki/MPEG-1

        MPEG-1 (Motion Pictures Experts Group) je standard kódování a ztrátové komprese videa a audia.Standard byl dokončen roku 1991.Standardně je určen pro digitální datové nosiče CD ().Maximální datový tok je až 1,5 Mb/s.. MPEG-1 je dnes nejvíce kompatibilní video formát, avšak již téměř nepoužívaný a zastaralý.Obsahuje také zvukový kompresní formát MPEG-1 Layer 3 ...

        • Rozšíření: MPEG-2
        • Přípona souboru: .mpg, .mpeg, .mp1, .mp2, .mp3, .m1v, .m1a, .m2a, .mpa, .mpv
        • Rozšiřuje formát: JPEG, H.261
        • Typ internetového média: audio/mpeg, video/mpeg

      • MPEG-1 – Wikipedija

        https://hr.wikipedia.org/wiki/MPEG-1
        • MPEG-1 je standard koji se sastoji iz pet dijelova: 1. Sistemski 2. Video 3. Audio 4. Ispitivanje usklađenosti 5. Softverska simulacija
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        • MPEG-1 — Wikipédia

          https://fr.wikipedia.org/wiki/MPEG-1

          MPEG-1 est une norme de compression vidéo et audio définie par la norme ISO/CEI-11172, élaborée par le groupe MPEG en 1988.Ce groupe a pour but de développer des standards internationaux de compression, décompression, traitement et …

          • Basé sur: JPEG
          • Extensions: .mpg, .mpeg, .mp1, .mp2, .mp3, .m1v, .mpv, .m1a, .m2a, .mpa

        • MPEG-1 - Wikipedia, la enciclopedia libre

          https://es.wikipedia.org/wiki/MPEG-1
          • MPEG-1 Capa I o II de audio es un codificador de subbanda genérico de funcionamiento a velocidades de bits en el intervalo de 32 a 448 kb/s de apoyo y con unas frecuencias de muestreo de 32, 44,1 y 48 kHz. Las velocidades de bits típicas para la capa II están en el intervalo de 128 a 256 kb/s, y 384 kb/s para aplicaciones profesionales.
          Xem thêm trên es.wikipedia.org
          • Extendido de: JPEG, H.261
          • Tipo de formato: audio, video, contenedor
          • Extensión de archivo: .mpg, .mpeg, .mp1, .mp2, .mp3, .m1v, .m1a, .m2a, .mpa, .mpv
          • Tipo de MIME: audio/mpeg, video/mpeg

        • MPEG-1 – Wikipedia, wolna encyklopedia

          https://pl.wikipedia.org/wiki/MPEG-1

          MPEG-1 – standard kompresji dźwięku i ruchomych obrazów zaproponowany przez MPEG.Format wideo MPEG-1 używany jest na Video CD.Jakość obrazu przy zwykłej przepustowości VCD jest gorsza od tej znanej z nowych kaset VHS dobrej jakości. MPEG-1 Audio Layer 3 jest pełną nazwą popularnego formatu kompresji dźwięku, MP3. MPEG-1 składa się z …

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