May 26, 2018

Free library for decoding MPEG-2 and MPEG-1 video streams

[ excerpt from developer’s site ] It is a free library for decoding mpeg-2 and mpeg-1 video streams. The main goals in libmpeg2 development are

Conformance - libmpeg2 is able to decode all mpeg streams that conform to certain restrictions “constrained parameters” for mpeg-1, and “main profile” for mpeg-2. In practice, this is what most people are using. For streams that follow these restrictions, we believe libmpeg2 is 100 conformant to the mpeg standards - and we have a pretty extensive test suite to check this.

Speed - for most current systems, the display will actually take more time than the mpeg-2 decoding. For systems that have hardware color conversion and scaling as we can use with the xv extension in Xfree 4, you should be able to watch DVD streams on a Celeron

  1. On a PIII/666 with null display you should get about 110 frames per second.

Portability - most of the code is written in C, and when we use platform-specific optimizations we always have a generic C routine to fall back on.

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