Re: FFmpeg bootstrap

Am Mo., 3. Juni 2019 um 17:14 Uhr schrieb Jason Duerstock
<[email protected]>:
>
> Hello again Carl,
>
> Sorry it took so long to get back to you.  I took another stab at bootstrapping ffmpeg, and it seems like the bulk of the test errors revolve around src/libavcodec/ituh263enc.c.  Specifically:
>
> $ gdb ./ffmpeg --core=core.1559574121
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> Reading symbols from ./ffmpeg...
> [New LWP 6314]
> [New LWP 6317]
> [New LWP 6318]
> [Thread debugging using libthread_db enabled]
> Using host libthread_db library "/lib/ia64-linux-gnu/libthread_db.so.1".
> Failed to read a valid object file image from memory.
> Core was generated by `/home/jason/ffmpeg-4.1.3/debian/standard/ffmpeg -nostdin -nostats -y -cpuflags'.
> Program terminated with signal SIGSEGV, Segmentation fault.

> #0  init_mv_penalty_and_fcode (s=0x20000008000f3880) at src/libavcodec/ituh263enc.c:776
> 776         s->me.mv_penalty= mv_penalty; // FIXME exact table for MSMPEG4 & H.263+

What surprises me a little is that this line is not part of
init_mv_penalty_and_fcode().

Do you see the same crash if you add --disable-optimizations to configure?

Carl Eugen