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libmpeg2 is distributed with a small test program, mpeg2dec. Both are released under the terms of the GPL license.
libmpeg2-0.5.1 (July 19, 2008): Fix broken installation of headers, fix pkgconfig files.
libmpeg2-0.5.0 (July 12, 2008): New optimisations for SSE2 and ARM instruction sets, support for aspect ratio changes detection, and robustness against corrupted streams.
mpeg2dec-0.4.1 (September 19, 2006): Bugfix release - build system and portability improvements, bugfixes in the 4:4:4 chroma, in the Xshm code, more tolerance for invalid streams.
mpeg2dec-0.4.0b (January 21, 2004): Small bugfix release - MMX color conversions were accidentally disabled in 0.4.0.
mpeg2dec-0.4.0 (December 23, 2003): 4:2:2-profile decoding, better robustness, concatenated streams support, color conversion helper library, sparc VIS MC optimizations, basic documentation, etc...
mpeg2dec-0.3.1 (December 13, 2002): integrated CPU detection code, alpha IDCT/MC optimizations, C IDCT optimizations, fixed all known memory leaks, workaround for HPPA/IA64/sparc build issues, etc...
mpeg2dec-0.3.0 (November 27, 2002): new libmpeg2 API, better detection and recovery after stream errors, minor speed enhancements, VC++ SIMD optimizations, etc...
mpeg2dec-0.2.1 (March 17, 2002): altivec optimizations, tolerance for corrupted streams, support for high definition streams, native support for VC++ compiler, various mpeg flags exported to libvo, etc...
mpeg2dec-0.2.0 (February 15, 2001): support for field pictures, more speed enhancements, full reentrancy, cleaner video library API, etc...
mpeg2dec-0.1.7 (November 2, 2000): improved performance, mpeg-1 and mpeg-2 support, integrated demuxer, standards compliance.
Older releases are so old you don't want to use these :)
The latest libmpeg2 and mpeg2dec source code can always be found by anonymous SVN:
# svn co svn://svn.videolan.org/libmpeg2/trunk # Trunk # svn co svn://svn.videolan.org/libmpeg2/branches/0.4.0 # 0.4.0 branch
You can also browse the latest changes online.
The mpeg2 conformance testing bitstreams have been checked in with
md5 checksums of the reference decoder output so we can easily test
for decoder conformance. These are available via CVS:
svn co svn://svn.videolan.org/libmpeg2/streams
All libmpeg2 checkins are checked against this test suite. If you do any work on libmpeg2, you might want to use this too - just get this test suite and make it have the same parent directory as mpeg2dec. Then run "make check" from the mpeg2dec package.