On Jan 04 15:52:47, s...@spacehopper.org wrote: > On 2023/01/04 16:22, Jan Stary wrote: > > Hi, > > > > > My old pcengines box died and I had a rpi4 around that I spun up to > > > replace > > > it with as my network router/play machine. > > > > > > The rpi4 is working fantastic except for one thing: > > > > > > I have a webcam that I'm capturing images using fswebcam and those scripts > > > all work perfectly. > > > > > > I try to make a video of the captured images (timelapse) using ffmpeg, but > > > any invocation of ffmpeg I try dumps a core. I have tried on different > > > sets > > > of image files so I don't think it's the data coming in. > > > > > > A super simple invocation: > > > ffmpeg -y -pattern_type glob -i "image*.jpeg" all.mp4 > > > > > > After 40-50 frames results in: > > > Thread 2 received signal SIGSEGV, Segmentation fault. > > > [Switching to thread 203094] > > > 0x0000001527489808 in mbtree_propagate_list_neon () from > > > /usr/local/lib/libx264.so.24.0 > > > > > > 0x0000001527489808 in mbtree_propagate_list_neon () from > > > /usr/local/lib/libx264.so.24.0 > > > > > > (gdb) bt > > > #0 0x0000001527489808 in mbtree_propagate_list_neon () from > > > /usr/local/lib/libx264.so.24.0 > ... > > > Is anyone successfully running ffmpeg on rpi4? > > > > I can confirm that ffmpeg dumps core for me on RPI4 running current/arm64. > > Even with just three jpegs, i.e. three frames, > > > > ffmpeg -y -pattern_type glob -i "*.jpg" all.mp4 > > > > just sits there for ages and eventualy segfaults like this: > > > > Script started on Wed Jan 4 16:12:12 2023 > > ffmpeg version 4.4.3 Copyright (c) 2000-2022 the FFmpeg developers > > built with OpenBSD clang version 13.0.0 > > configuration: --enable-shared --arch=aarch64 --cc=cc --disable-debug > > --disable-indev=jack --disable-outdev=sdl2 --enable-avresample > > --enable-fontconfig --enable-frei0r --enable-gpl --enable-ladspa > > --enable-libaom --enable-libass --enable-libdav1d --enable-libfreetype > > --enable-libfribidi --enable-libgsm --enable-libmp3lame --enable-libopus > > --enable-libspeex --enable-libtheora --enable-libv4l2 --enable-libvorbis > > --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxml2 > > --enable-libxvid --enable-libzimg --enable-nonfree --enable-openssl > > --enable-libvidstab --extra-cflags='-I/usr/local/include > > -I/usr/X11R6/include' --extra-libs='-L/usr/local/lib -L/usr/X11R6/lib' > > --extra-ldsoflags= --mandir=/usr/local/man --objcc=/usr/bin/false > > --optflags='-O2 -pipe -Wno-redundant-decls' > ... > > Duration: 00:00:00.12, start: 0.000000, bitrate: N/A > > Stream #0:0: Video: mjpeg (Baseline), yuvj420p(pc, > > bt470bg/unknown/unknown), 2560x1920, 25 fps, 25 tbr, 25 tbn, 25 tbc > > Stream mapping: > > Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264)) > > Press [q] to stop, [?] for help > > 1;36m[libx264 @ 0x1491c75800] 0musing cpu capabilities: ARMv8 NEON > > 1;36m[libx264 @ 0x1491c75800] 0mprofile High, level 5.0, 4:2:0, 8-bit > > 1;36m[libx264 @ 0x1491c75800] 0m264 - core 164 - H.264/MPEG-4 AVC codec - > > Copyleft 2003-2022 - http://www.videolan.org/x264.html - options: cabac=1 > > ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 > > mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 > > fast_pskip=1 chroma_qp_offset=-2 threads=6 lookahead_threads=1 > > sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 > > constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 > > weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 > > intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 > > qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00 > > Output #0, mp4, to 'all.mp4': > > Metadata: > > encoder : Lavf58.76.100 > > Stream #0:0: Video: h264 (avc1 / 0x31637661), yuvj420p(pc, > > bt470bg/unknown/unknown, progressive), 2560x1920, q=2-31, 25 fps, 12800 tbn > > Metadata: > > encoder : Lavc58.134.100 libx264 > > Side data: > > cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A > > frame= 1 fps=0.0 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A > > speed= > > frame= 3 fps=0.0 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A > > speed= > > Segmentation fault (core dumped) > > > > > > > > Reading symbols from 32m/usr/local/bin/ffmpegm... > > (No debugging symbols found in 32m/usr/local/bin/ffmpegm) > > [New process 403534] > > [New process 166640] > > [New process 477908] > > [New process 114936] > > [New process 366281] > > [New process 313181] > > [New process 410521] > > [New process 459975] > > [New process 267908] > > [New process 458273] > > [New process 590791] > > [New process 209987] > > Core was generated by `ffmpeg'. > > Program terminated with signal SIGSEGV, Segmentation fault. > > m--Type <RET> for more, q to quit, c to continue without paging-- > > #0 34m0x000000141f3fa9ccm in 33mx264_8_cabac_encode_decision_asmm ()m > > m from 32m/usr/local/lib/libx264.so.24.0m > > [Current thread is 1 (process 403534)] > > (gdb) > > (gdb) bt > > #0 34m0x000000141f3fa9ccm in 33mx264_8_cabac_encode_decision_asmm ()m > > m from 32m/usr/local/lib/libx264.so.24.0m > > #1 34m0x000000141f34e6e4m in 33mx264_8_macroblock_write_cabacm ()m > > m from 32m/usr/local/lib/libx264.so.24.0m > > #2 34m0x000000141f36191cm in 33mslices_writem () from > > 32m/usr/local/lib/libx264.so.24.0m > ... > > So it's crashing in libx264 asm mbtree (macroblock_tree) code. > > There was a fix in this area recently. Which version of x264 do you have? > If it's before x264-20221028 then try updating first. I don't think > there's worth looking further until that is confirmed.
It's x264-20221028. > If that doesn't help, there's a good chance that building x264 with > --disable-asm will work around the problem, but will be slow. It is :-) I'll get back.
