Le primidi 21 floréal, an CCXXV, Michael Niedermayer a écrit : > fixed, and now your patchset seems to cause a 1% slowdown of the > example above
Thanks. The slowdown is to be expected, since this filter used non-aligned frames which are now realigned. I guess you can get back the previous speed by setting "avctx->alignment = 0" in snow_encoder.init(). The default in this patchset is 5 to fix all the alignment problems, at the cost of some slowdown in corner cases such as this one. I am not qualified to decide the best way of setting an optimal value to get speed without crashes. My opinion would be: - have avctx->alignment default to 0; - have all codecs with explicit assembly set avctx->alignment to the required value; - have all codecs that use generic DSP code init it through a function that sets the alignment accordingly. Regards, -- Nicolas George
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