MPEG-2
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Data within an MPEG-2 stream is divided into packets in the [[Packetized Elementary Stream]] format. | Data within an MPEG-2 stream is divided into packets in the [[Packetized Elementary Stream]] format. | ||
| + | |||
| + | == Formats == | ||
| + | There are separate articles for these formats: | ||
| + | * [[AAC]] | ||
| + | * [[MPEG Audio Layer I]] (MP1) | ||
| + | * [[MPEG Audio Layer II]] (MP2) | ||
| + | * [[MP3]] | ||
| + | * [[Packetized Elementary Stream]] | ||
== Specifications == | == Specifications == | ||
Revision as of 12:51, 18 May 2018
MPEG-2 is an extended version of the MPEG-1 standard for video and audio streams. It is used in digital TV broadcasts and DVDs. The ISO/IEC 13818 group of standards specify the details of the standard.
A number of patents relate to various aspects of the format, but they are starting to expire as of 2012, with most expired by 2015 (but a few hanging on a little longer). As long as any of the patents are in effect, a licensing body with control over the entire patent pool demands royalties from everybody producing anything using the format.
The popular MP3 audio format is based on layer 3 of MPEG-1 and MPEG-2.
The AAC audio format is based on MPEG-2 Part 7.
Data within an MPEG-2 stream is divided into packets in the Packetized Elementary Stream format.
Formats
There are separate articles for these formats:
Specifications
These documents are not free to download. This is not a complete list of the MPEG-2 Parts and Amendments.
- ISO/IEC 13818-1:2013 - Part 1: Systems
- Part 1 is also published as ITU-T Rec. H.222.0
- ISO/IEC 13818-2:2013 - Part 2: Video
- Part 2 is also published as ITU-T Rec. H.262
- ISO/IEC 13818-3:1998 - Part 3: Audio
- ISO/IEC 13818-7:2006 - Part 7: Advanced Audio Coding
