On Mon, Jun 16, 2025 at 01:19:55PM +0200, Niklas Haas wrote: > From: Niklas Haas <g...@haasn.dev> > > Processes two channels in parallel, using 128-bit XMM registers. > > In theory, we could go up to YMM registers to process 4 channels, but this is > not a gain except for relatively high channel counts (e.g. 7.1), and also > complicates the sample load/store operations considerably. > > I decided to only add an AVX variant, since the C code is not substantially > slower enough to justify a separate function just for ancient CPUs. > --- > libavfilter/f_ebur128.c | 15 ++-- > libavfilter/f_ebur128.h | 16 ++++ > libavfilter/x86/Makefile | 4 + > libavfilter/x86/f_ebur128.asm | 142 +++++++++++++++++++++++++++++++ > libavfilter/x86/f_ebur128_init.c | 35 ++++++++ > 5 files changed, 207 insertions(+), 5 deletions(-) > create mode 100644 libavfilter/x86/f_ebur128.asm > create mode 100644 libavfilter/x86/f_ebur128_init.c
breaks x86-32 build src/libavfilter/x86/f_ebur128.asm:116: error: symbol `m8' undefined src//libavutil/x86/x86inc.asm:1638: ... from macro `movddup' defined here src//libavutil/x86/x86inc.asm:1501: ... from macro `RUN_AVX_INSTR' defined here src/libavfilter/x86/f_ebur128.asm:118: error: symbol `m9' undefined src//libavutil/x86/x86inc.asm:1638: ... from macro `movddup' defined here src//libavutil/x86/x86inc.asm:1501: ... from macro `RUN_AVX_INSTR' defined here src/libavfilter/x86/f_ebur128.asm:119: error: symbol `m10' undefined src//libavutil/x86/x86inc.asm:1638: ... from macro `movddup' defined here src//libavutil/x86/x86inc.asm:1501: ... from macro `RUN_AVX_INSTR' defined here src/libavfilter/x86/f_ebur128.asm:120: error: symbol `m11' undefined src//libavutil/x86/x86inc.asm:1638: ... from macro `movddup' defined here src//libavutil/x86/x86inc.asm:1501: ... from macro `RUN_AVX_INSTR' defined here src/libavfilter/x86/f_ebur128.asm:121: error: symbol `m12' undefined src//libavutil/x86/x86inc.asm:1638: ... from macro `movddup' defined here src//libavutil/x86/x86inc.asm:1501: ... from macro `RUN_AVX_INSTR' defined here src/libavfilter/x86/f_ebur128.asm:122: error: symbol `m13' undefined src//libavutil/x86/x86inc.asm:1638: ... from macro `movddup' defined here src//libavutil/x86/x86inc.asm:1501: ... from macro `RUN_AVX_INSTR' defined here src/libavfilter/x86/f_ebur128.asm:124: error: symbol `r7q' undefined src/libavfilter/x86/f_ebur128.asm:125: error: symbol `r8q' undefined src/libavfilter/x86/f_ebur128.asm:132: error: symbol `r7q' undefined ... [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB Take away the freedom of one citizen and you will be jailed, take away the freedom of all citizens and you will be congratulated by your peers in Parliament.
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