On Montag, 29. August 2016 20:51:29 CEST Andreas Färber wrote: > Am 29.08.2016 um 20:37 schrieb Jan Engelhardt: > > On Monday 2016-08-29 19:44, Andreas Färber wrote: > >>> [ 6141s] libavcodec/libavcodec.so: undefined reference to > >>> `ff_avg_vc1_chroma_mc4_neon' > > > > someone already sent me some arm patch involving VC1 very recently. > > Ah, Stefan Brüns: > > https://build.opensuse.org/package/view_file/multimedia:libs/ffmpeg/ffmpeg-f > ix-CONFIG_VC1DSP-changes.patch?expand=1 > > Thanks, missed that one, not in Factory yet. While that may fix the > build, NEON might still cause segfaults, e.g., on early Tegra hardware.
Did not do a thourough check, but in at least one location I have seen an explicicit runtime check for NEON. In general, most/all? DSP routines are dispatched using tables of CPU specific (runtime) function pointers. Kind regards, Stefan -- Stefan Brüns / Bergstraße 21 / 52062 Aachen home: +49 241 53809034 mobile: +49 151 50412019 work: +49 2405 49936-424 -- To unsubscribe, e-mail: [email protected] To contact the owner, e-mail: [email protected]
