Author Topic: Difference between MPEG and MPEG4  (Read 6773 times)

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Offline Shankynayak

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Difference between MPEG and MPEG4
« on: November 25, 2011, 01:32:15 am »
U had seen these 2 words often at the install. of app. & somewhere else. MPEG stands for moving photographic experts group, is a set of compression technologies used for video and audio encoding.
1. MPEG is a larger specification whereas Mpeg4 is a part of it.
2. MPEG used in vcds & mpeg4 used in dvds and bluray discs.
3. Mpeg4 is used in portable devices like smartphones, video players, tablets.
In Mpeg4, there will be minimal loss of quality and mpeg is limited of 1.5Mbps bit rate to fit the media.
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Offline RamakantPareek

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Difference between MPEG and MPEG4
« Reply #1 on: August 18, 2012, 12:23:06 pm »
    1. MPEG1/4 are different video encoding decoding formats.
    2. MPG is a different codec and container formats
    3. MP4 is a container format not a codec
    4. Other codec used in .mp4 container is "mpeg-4 part 10" standard called AVC or h.264


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Offline thomaswhite544

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Re: Difference between MPEG and MPEG4
« Reply #2 on: February 04, 2016, 04:31:02 pm »
  • MPEG-1 (1993): Coding of moving pictures and associated audio for digital storage media at up to about 1.5 Mbit/s (ISO/IEC 11172). Designed to compress VHS-quality raw digital video and CD audio without excessive quality loss, making video CDs, digital cable/satellite TV and digital audio broadcasting (DAB) possible. It includes the popular MPEG1 Audio Layer III (MP3) audio compression format.
  • MPEG-2 (1995): Generic coding of moving pictures and associated audio information (ISO/IEC 13818). Describes a combination of lossy video compression and lossy audio data compression methods, which permit storage and transmission of movies using currently available storage media and transmission bandwidth.
  • MPEG-3: Dealt with standardizing scalable and multi-resolution compression and was intended for HDTV compression but was found to be redundant and was merged with MPEG2.
  • MPEG-4 (1999): Coding of audio-visual objects. Includes compression of AV data for web (streaming media) and CD distribution, voice (telephone, videophone) and broadcast television applications. It includes the MPEG-4 Part 14 (MP4).
  • MPEG-7 (2002): Multimedia content description interface. Not a standard which deals with the actual encoding of moving pictures and audio, like MPEG1, MPEG2 and MPEG4. It uses XML to store metadata, and can be attached to timecode in order to tag particular events, or synchronize lyrics to a song.
  • MPEG-21 (2001): Multimedia framework. It is aimed at defining an open framework for multimedia applications. Based on definition of a Digital Item and users interacting with Digital Items.

Offline aman52

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Difference between MPEG and MPEG4
« Reply #3 on: May 26, 2016, 10:20:27 am »
MPEG-1 is the coding of moving pictures or associated audio for digital storage media at up to about 1.5Mbit/s.MPEG-4 is the audio visual-objects.Include compression of AV data for wed and CD distribution, and voice broadcast television applications.

Offline 3dtech

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Re: Difference between MPEG and MPEG4
« Reply #4 on: May 29, 2017, 02:14:36 pm »
There are lots of difference. Remember MPEG-1 is the first generation video codec, while H.264 is the fourth generation (after MPEG-2 and MPEG-4, part 2).

MPEG-1 was optimized for video playback using a CD-ROM (about 1.5 Mbits/s)
MPEG-4, part 10 (aka AVC or H.264) was optimized for video playback using Blu-Ray.
a) MPEG-1 did not support interlaced pictures
b) MPEG-1 was used mostly for SIF-resolution pictures (about 360x240) (those old enough may remember movies in VCD and SVCD formats), H.264 supports HD (1920x1080)
c) MPEG-1 was based on the 8x8 DCT; H.265 uses fixed-point DCT-like 4x4 transform
d) MPEG-1 used Huffman and variable-length coding for lossless compression; H.265 uses arithmetic coding
e) H.264 uses a better Intra-coding mode, more flexible motion prediction, and a new "loop filter."
H.264 added support for 10-bit video and 3-D video.
Wikipedia, under "Features" provides a full list of all the new features of H.264

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