On Fri, Dec 16, 2011 at 10:22 PM, Mans Rullgard <[email protected]> wrote: > The A32 bitstream reader variant is only used on ARMv5 and for > Prores due to the larger bit cache this decoder requires. > > In benchmarks on ARMv5 (Marvell Sheeva) with gcc 4.6, the only > statistically significant difference between ALT and A32 is > a 4% advantage for ALT in FLAC decoding. There is thus no (longer) > any reason to keep the A32 reader from this point of view. > > This patch adds an option to the ALT reader increasing the bit > cache to 32 bits as required by the Prores decoder. Benchmarking > shows no significant change in speed on Intel i7. Again, the > A32 reader fails to justify its existence. > > Signed-off-by: Mans Rullgard <[email protected]>
Cool! I've often wondered what was the point of it. -- Felipe Contreras _______________________________________________ libav-devel mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-devel
