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Dear experts, I read the following sentence at http://directory.fsf.org/libMPEG.html “Conformance - libmpeg2 can decode
all mpeg streams that
conform to certain restrictions: "constrained parameters" for mpeg-1, and "main profile" for mpeg-2” About these words, I am wondering
the following items. I. Please let me know the libmpeg2
decoder passed the conformance test (ISO/IEC 13818-4) for main profile of
MPEG2. I got the result that the
pixel values from libmpeg2 and w6737 (mpeg2 reference code) have than +-2 term. 2. I knew mpeg2 involved mpeg1 and I
guessed if passed the conformance test for the main profile of MPEG2, then
MPEG1 should pass the test. According to above
words, however, MPEG1 passed only for the bitstream with “constrained
parameters”, is it right? I would appreciate hearing from you
in advance. Thanks, Kim |
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