What Is The Difference Between H.264 And X.264? - Stack Overflow

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Learn more about Labs What is the difference between H.264 and x.264? Ask Question Asked 11 years, 2 months ago Modified 8 years, 4 months ago Viewed 8k times 6

I'm new to video compression; but I see many of the terms repeated over and over again. I'm wondering what's the difference between x.264 and libx264 and H.264?

• h.264
• x264
• libx264

Share Improve this question Follow edited Aug 17, 2016 at 18:52 Yosvel Quintero 19.1k55 gold badges3939 silver badges4747 bronze badges asked Oct 14, 2013 at 9:23 AbdulMomen عبدالمؤمنAbdulMomen عبدالمؤمن 22.2k1818 gold badges6161 silver badges6565 bronze badges Add a comment |

1 Answer 1

Sorted by: Reset to default Highest score (default) Trending (recent votes count more) Date modified (newest first) Date created (oldest first) 7

H.264 is video encoding method, an alias name for MPEG-4 AVC compression, also known as MPEG-4 Part 10, defined in joint ISO/IC and ITU specification "Information technology — Coding of audio-visual objects — Part 10: Advanced Video Coding".

The specification is freely available here: http://www.itu.int/rec/T-REC-H.264-201304-I/en

x264 is a library implementing video compression and producing H.264 compatible stream.

See also:

• What is ffmpeg, avcodec, x264?

Share Improve this answer Follow edited May 23, 2017 at 12:00 CommunityBot 111 silver badge answered Oct 14, 2013 at 9:38 Roman RyltsovRoman Ryltsov 69.5k66 gold badges101101 silver badges168168 bronze badges Add a comment |

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13 What is ffmpeg, avcodec, x264?

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