Yes - to allow hardware to access buffers that ffmpeg also uses requires somewhat expensive cache coherency operations, which if done on small blocks of data, tends to dominate the time taken.i'm guessing it was also more complex to integrate into things like ffmpeg, because its only replacing one part of the pipeline?It's not a decoder. It accelerates a tiny part of the decode process (cabac), but was found to provide little measurable benefit across the whole decode.
Statistics: Posted by dom — Tue Feb 06, 2024 4:22 pm