Change #264020

Comments

avcodec/x86/rv34dsp: Port ff_rv34_idct_add_mmxext to SSSE3
With this commit, the RV30 and RV40 decoders no longer clobber
the fpu state for normal decoding (only error resilience can
still do so).

rv34_idct_add_c:                                        58.1 ( 1.00x)
rv34_idct_add_mmxext:                                   16.5 ( 3.52x)
rv34_idct_add_ssse3:                                    12.2 ( 4.76x)

Reviewed-by: Lynne <dev@lynne.ee>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

Changed files

• libavcodec/x86/rv34dsp.asm
• libavcodec/x86/rv34dsp_init.c
• tests/checkasm/rv34dsp.c