[FFmpeg-trac] #11206(undetermined:new): libavcodec/libavcodec.so: undefined reference to `ff_vvc_dsp_init_x86'

FFmpeg trac at avcodec.org
Thu Sep 26 03:28:41 EEST 2024


#11206: libavcodec/libavcodec.so: undefined reference to `ff_vvc_dsp_init_x86'
-------------------------------------+-------------------------------------
             Reporter:  th0ma7       |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 I'm maintaining ffmpeg within the SynoCommunity for Synology NAS.  I've
 been preparing the build environment for providing ffmpeg 7.x but hit the
 following issue on i686 & x86_64 that never occurred with previous
 versions.

 {{{
 LD      libavdevice/libavdevice.so.61
 LD      ffmpeg_g
 LD      ffprobe_g
 libavcodec/libavcodec.so: undefined reference to `ff_vvc_dsp_init_x86'
 collect2: error: ld returned 1 exit status
 make[4]: *** [Makefile:136: ffprobe_g] Error 1
 make[4]: *** Waiting for unfinished jobs....
 libavcodec/libavcodec.so: undefined reference to `ff_vvc_dsp_init_x86'
 collect2: error: ld returned 1 exit status
 make[4]: *** [Makefile:136: ffmpeg_g] Error 1
 }}}

 It builds ok for other arches (armv7, v8, ppc) but i'm hitting this issue.
 My PR can be found here: https://github.com/SynoCommunity/spksrc/pull/6239

 Note that from my readings I tought that disable avx would fix things as I
 am cross-compiling and resulting binary must be compatible for apollolake
 type processors.  Although adding --disable-avx did not work (neither
 adding the other --disable-avx2 --disable-avx512 --disable-avx512icl).

 Help would be greatly appreciated, much thnx!
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/11206>
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