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Is SheerVideo faster than Photo JPEG?

April 26, 2017faster JPEG photo SheerVideo

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Is SheerVideo faster than Photo JPEG?

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Yes, SheerVideo compresses 4 times as fast (110 MiB/s on a 1-processor 1 GHz Mac G4) as Apple’s superb Photo JPEG codec implementation (27 MiB/s) at its Best quality setting, and decompresses 3 times as fast (100 MiB/s) as Photo JPEG (38 MiB/s). This even though SheerVideo maintains perfect fidelity, whereas Photo JPEG degrades the image; and even though SheerVideo is comparable in compression power to Best-quality Photo JPEG. Furthermore, SheerVideo supports alpha, which Photo JPEG doesn’t. On the other hand, Photo JPEG provides for much higher compression than can be attained with perfect fidelity.