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Fixes for latest FFmpeg version when compiling for aarch64 using armasm64#3

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Fixes for latest FFmpeg version when compiling for aarch64 using armasm64#3
montoyo wants to merge 1 commit intolibav:masterfrom
montoyo:master

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@montoyo
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@montoyo montoyo commented Dec 12, 2022

Hey there,
Was trying to build the latest FFmpeg version for ARM64 using MSVC and encountered a few errors regarding libavcodec/aarch64/vc1dsp_neon.S and libavcodec/aarch64/hevcdsp_sao_neon.S. I attempted to fix them by implementing patching for the tbnz and tbx instructions.

Disclaimer: I have no knowledge of perl nor ARM64 assembly, I simply attempted to fix the compiler issues. I thought I'd still create a pull-request, just in case it would help someone 😊

@madebr
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madebr commented Oct 11, 2024

This helped me today with building the asm codecs of dav1d.
The SDL project thanks you :)

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