Quote:
Originally Posted by schweinsz
Adding lossless contents support is not a complex task. But I'll start work on it after all other more important tasks are finished, such as improving the speed, filter bug fix, compatibility, 64-bit version, etc.
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Adding 64-bit assembly is a huge task, especially if you don't intend to do what x264 does and use a 32-bit/64-bit abstraction system. Lossless is a couple hours at most by comparison.
Also, note there are two lossless modes: the old one (profile_idc=144) and the new one (profile_idc=244). Old one is just replacing dct with a direct subtraction, while the new one involves some pixel prediction and thus is slightly trickier.