MP4 H.264 MPEG-4 MPEG-2

MP4 视频编解码技术 H.264 MPEG-4 MPEG-2

• MP4 (MPEG-4 Part 14):

  • Format: A digital multimedia container format.
  • Use: Often used to store video, audio, subtitles, and still images.
  • Compression: Can use different codecs, such as H.264, for video compression.

• H.264 (MPEG-4 Part 10, AVC):

  • Codec: A video compression standard that is widely used for recording, compression, and distribution of video content.
  • Use: Commonly used in Blu-ray Discs, YouTube videos, and many streaming services due to its high compression efficiency and quality.

• MPEG-4:

  • Standard: A method of defining compression of audio and visual digital data. It includes a wide range of codecs, with H.264 being one of them.
  • Use: Used for compressing audio and visual data like video streams and DVD files.

• MPEG-2:

  • Standard: An older video and audio compression standard.
  • Use: Primarily used for DVDs, digital television, and early Blu-ray Discs. It is less efficient than H.264 but was widely used before more advanced codecs were developed.

1）H.264是高性能的视频编解码技术，高清编码格式；

2）同等图像质量，数据压缩比率，H.264是MPEG-2的2倍以上，是MPEG-4的1.5～2倍；

3）低码率、高质量、容错强、适应强；