Compiling libopus 1.5.1 with Linux fails on ARM Cortex-A53 and Cortex-A55
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- Dominant language
- C
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Description
I encountered the problem with GCC, in function silk_NSQ_del_dec_neon and silk/arm/NSQ_del_dec_neon_intr which invokes undefined behavior [-Waggressive-loop-optimizations], the errors occurred with Raspberry Pi Zero for Cortex-A53 and Raxda Rock 3 model C for Cortex-A55.
I have not found any problems in RV64 (with StarFive VisionFive 2), with recent Macs and PCs.
I leave you my compliments for the results obtained with encapsulation in ISOBMFF, which seems to work everywhere, now Opus is in my opinion the best choice for the online distribution of spoken content at low bitrate. Thank you!
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Research direction
Reproduce the libopus 1.5.1 Linux build with GCC on Cortex-A53 and Cortex-A55, then inspect silk_NSQ_del_dec_neon and silk/arm/NSQ_del_dec_neon_intr for the reported -Waggressive-loop-optimizations diagnostics. Done means the affected ARM builds compile without the reported failure while the existing behavior remains intact; compare with the working RV64, Mac, and PC builds.
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Assessment
- Tech stack
- c
- Domain
- audio-video-rtc
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100