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• ffmpeg massive error spamming from FritzBox rtsp stream

  19 février 2019, par itzaiiro

  Im trying to offer a rtsp live TV stream via rtmp to my family, since the Fritz Box (which is offering the stream) has only 4 tuners -> at most 4 streams can be watched simultaneously.
  Im using ffmpeg to prepare the stream as dash stream and send it to my rtmp nginx. When i run ffmpeg im experiencing heavy image and audio artifacts in the final stream and error spams of doom in the console. I couldn’t find anything specific to my case on google. I read on the internet that AVM barely implemented the rtsp protocoll enough to get it to work with vlc mediaplayer.

  launch param :

  ffmpeg -i "rtsp://192.168.178.1:554/?avm=1&freq=114&bw=8&msys=dvbc&mtype=256qam&sr=6900&specinv=1&pids=0,16,17,18,20,260,543,544,546,548,1621" -sn -vcodec libx264 -vprofile baseline -acodec aac -strict -2 -b:v 500k -minrate 500k -maxrate 500k -bufsize 1000k -g 60 -s 640x360 -f flv rtmp://192.168.178.15/dash/pro_sieben_low -sn -vcodec libx264 -vprofile baseline -acodec aac -strict -2 -b:v 1500k -minrate 1500k -maxrate 1500k -bufsize 3000k -g 60 -s 1280x720 -f flv rtmp://192.168.178.15/dash/pro_sieben_med -sn -vcodec libx264 -vprofile baseline -acodec aac -strict -2 -b:v 5000k -minrate 5000k -maxrate 5000k -bufsize 10000k -g 60 -s 1920x1080 -f flv rtmp://192.168.178.15/dash/pro_sieben_high

  ffmpeg output (windows) :
  stored in pastebin
  https://pastebin.com/p4HAyBi5

  Is there anyway to get this under control ? The original stream is running good with vlc, but its unwatchable after its out of ffmpeg.

  Edit :
  I was running/testing this on my windows machine, but my target for this task is a ubuntu 16.04 so here ffmpeg on target with pthread support :

  ffmpeg -i "rtsp://192.168.178.1:554/?avm=1&freq=114&bw=8&msys=dvbc&mtype=256qam&sr=6900&specinv=1&pids=0,16,17,18,20,260,543,544,546,548,1621" -sn -vcodec libx264 -vprofile baseline -acodec aac -strict -2 -b:v 500k -minrate 500k -maxrate 500k -bufsize 1000k -g 60 -s 640x360 -f flv rtmp://192.168.178.15/dash/pro_sieben_low -sn -vcodec libx264 -vprofile baseline -acodec aac -strict -2 -b:v 1500k -minrate 1500k -maxrate 1500k -bufsize 3000k -g 60 -s 1280x720 -f flv rtmp://192.168.178.15/dash/pro_sieben_med -sn -vcodec libx264 -vprofile baseline -acodec aac -strict -2 -b:v 5000k -minrate 5000k -maxrate 5000k -bufsize 10000k -g 60 -s 1920x1080 -f flv rtmp://192.168.178.15/dash/pro_sieben_high
  
  ffmpeg version 2.8.15-0ubuntu0.16.04.1 Copyright (c) 2000-2018 the FFmpeg developers
  
    built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.10) 20160609
  
    configuration: --prefix=/usr --extra-version=0ubuntu0.16.04.1 --build-suffix=-ffmpeg --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzvbi --enable-openal --enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r --enable-libx264 --enable-libopencv
  
    libavutil      54. 31.100 / 54. 31.100
  
    libavcodec     56. 60.100 / 56. 60.100
  
    libavformat    56. 40.101 / 56. 40.101
  
    libavdevice    56.  4.100 / 56.  4.100
  
    libavfilter     5. 40.101 /  5. 40.101
  
    libavresample   2.  1.  0 /  2.  1.  0
  
    libswscale      3.  1.101 /  3.  1.101
  
    libswresample   1.  2.101 /  1.  2.101
  
    libpostproc    53.  3.100 / 53.  3.100
  
  [mpeg2video @ 0x167cde0] Invalid frame dimensions 0x0.
  
      Last message repeated 10 times
  
  [rtsp @ 0x1627c20] Could not find codec parameters for stream 4 (Unknown: none ([5][0][0][0] / 0x0005)): unknown codec
  
  Consider increasing the value for the 'analyzeduration' and 'probesize' options
  
  Input #0, rtsp, from 'rtsp://192.168.178.1:554/?avm=1&freq=114&bw=8&msys=dvbc&mtype=256qam&sr=6900&specinv=1&pids=0,16,17,18,20,260,543,544,546,548,1621':
  
    Metadata:
  
      title           : SatIPServer:1 0,0,4
  
    Duration: N/A, start: 33786.528778, bitrate: N/A
  
    Program 12101
  
      Metadata:
  
        service_name    : ?▒RTL▒ Television
  
        service_provider: ?Unitymedia
  
    Program 12102
  
      Metadata:
  
        service_name    : ?SAT.1
  
        service_provider: ?Unitymedia
  
    Program 12103
  
      Metadata:
  
        service_name    : ?ProSieben
  
        service_provider: ?Unitymedia
  
      Stream #0:3: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p(tv), 720x576 [SAR 64:45 DAR 16:9], max. 15000 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc
  
      Stream #0:2(deu): Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16p, 192 kb/s (clean effects)
  
      Stream #0:0(deu): Audio: ac3 ([6][0][0][0] / 0x0006), 48000 Hz, 5.1(side), fltp, 384 kb/s (clean effects)
  
      Stream #0:1(deu,deu): Subtitle: dvb_teletext ([6][0][0][0] / 0x0006), 492x250
  
      Stream #0:4: Unknown: none ([5][0][0][0] / 0x0005)
  
    Program 12104
  
      Metadata:
  
        service_name    : ?VOX
  
        service_provider: ?Unitymedia
  
    Program 12105
  
      Metadata:
  
        service_name    : ?RTL2
  
        service_provider: ?Unitymedia
  
    Program 12106
  
      Metadata:
  
        service_name    : ?kabel eins
  
        service_provider: ?Unitymedia
  
    Program 12107
  
      Metadata:
  
        service_name    : ?▒S▒uper▒ RTL▒
  
        service_provider: ?Unitymedia
  
    Program 12109
  
      Metadata:
  
        service_name    : ?ntv
  
        service_provider: ?Unitymedia
  
    Program 12113
  
      Metadata:
  
        service_name    : ?ProSieben MAXX
  
        service_provider: ?Unitymedia
  
    Program 20116
  
      Metadata:
  
        service_name    : ?SIXX
  
        service_provider: ?Unitymedia
  
  [libx264 @ 0x182b140] using SAR=1/1
  
  [libx264 @ 0x182b140] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
  
  [libx264 @ 0x182b140] profile Constrained Baseline, level 3.0
  
  [libx264 @ 0x182b140] 264 - core 148 r2643 5c65704 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - http://www.videolan.org/x264.html - options: cabac=0 ref=3 deblock=1:0:0 analyse=0x1:0x111 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=60 keyint_min=6 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=cbr mbtree=1 bitrate=500 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 vbv_maxrate=500 vbv_bufsize=1000 nal_hrd=none filler=0 ip_ratio=1.40 aq=1:1.00
  
  [libx264 @ 0x16e03c0] using SAR=1/1
  
  [libx264 @ 0x16e03c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
  
  [libx264 @ 0x16e03c0] profile Constrained Baseline, level 3.1
  
  [libx264 @ 0x16e03c0] 264 - core 148 r2643 5c65704 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - http://www.videolan.org/x264.html - options: cabac=0 ref=3 deblock=1:0:0 analyse=0x1:0x111 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=60 keyint_min=6 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=cbr mbtree=1 bitrate=1500 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 vbv_maxrate=1500 vbv_bufsize=3000 nal_hrd=none filler=0 ip_ratio=1.40 aq=1:1.00
  
  [libx264 @ 0x16cc880] using SAR=1/1
  
  [libx264 @ 0x16cc880] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
  
  [libx264 @ 0x16cc880] profile Constrained Baseline, level 4.0
  
  [libx264 @ 0x16cc880] 264 - core 148 r2643 5c65704 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - http://www.videolan.org/x264.html - options: cabac=0 ref=3 deblock=1:0:0 analyse=0x1:0x111 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=60 keyint_min=6 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=cbr mbtree=1 bitrate=5000 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 vbv_maxrate=5000 vbv_bufsize=10000 nal_hrd=none filler=0 ip_ratio=1.40 aq=1:1.00
  
  Output #0, flv, to 'rtmp://192.168.178.15/dash/pro_sieben_low':
  
    Metadata:
  
      title           : SatIPServer:1 0,0,4
  
      encoder         : Lavf56.40.101
  
      Stream #0:0: Video: h264 (libx264) ([7][0][0][0] / 0x0007), yuv420p, 640x360 [SAR 1:1 DAR 16:9], q=-1--1, 500 kb/s, 25 fps, 1k tbn, 25 tbc
  
      Metadata:
  
        encoder         : Lavc56.60.100 libx264
  
      Stream #0:1(deu): Audio: aac ([10][0][0][0] / 0x000A), 48000 Hz, 5.1(side), fltp, 128 kb/s (clean effects)
  
      Metadata:
  
        encoder         : Lavc56.60.100 aac
  
  Output #1, flv, to 'rtmp://192.168.178.15/dash/pro_sieben_med':
  
    Metadata:
  
      title           : SatIPServer:1 0,0,4
  
      encoder         : Lavf56.40.101
  
      Stream #1:0: Video: h264 (libx264) ([7][0][0][0] / 0x0007), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], q=-1--1, 1500 kb/s, 25 fps, 1k tbn, 25 tbc
  
      Metadata:
  
        encoder         : Lavc56.60.100 libx264
  
      Stream #1:1(deu): Audio: aac ([10][0][0][0] / 0x000A), 48000 Hz, 5.1(side), fltp, 128 kb/s (clean effects)
  
      Metadata:
  
        encoder         : Lavc56.60.100 aac
  
  Output #2, flv, to 'rtmp://192.168.178.15/dash/pro_sieben_high':
  
    Metadata:
  
      title           : SatIPServer:1 0,0,4
  
      encoder         : Lavf56.40.101
  
      Stream #2:0: Video: h264 (libx264) ([7][0][0][0] / 0x0007), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 5000 kb/s, 25 fps, 1k tbn, 25 tbc
  
      Metadata:
  
        encoder         : Lavc56.60.100 libx264
  
      Stream #2:1(deu): Audio: aac ([10][0][0][0] / 0x000A), 48000 Hz, 5.1(side), fltp, 128 kb/s (clean effects)
  
      Metadata:
  
        encoder         : Lavc56.60.100 aac
  
  Stream mapping:
  
    Stream #0:3 -> #0:0 (mpeg2video (native) -> h264 (libx264))
  
    Stream #0:0 -> #0:1 (ac3 (native) -> aac (native))
  
    Stream #0:3 -> #1:0 (mpeg2video (native) -> h264 (libx264))
  
    Stream #0:0 -> #1:1 (ac3 (native) -> aac (native))
  
    Stream #0:3 -> #2:0 (mpeg2video (native) -> h264 (libx264))
  
    Stream #0:0 -> #2:1 (ac3 (native) -> aac (native))
  
  Press [q] to stop, [?] for help
  
  RTP: missed 2137 packets.0 q=26.0 q=23.0 size=     238kB time=00:00:04.91 bitrate= 397.3kbits/s
  
  [rtsp @ 0x1627c20] PES packet size mismatch
  
  [mpeg2video @ 0x16d72c0] invalid mb type in I Frame at 0 16
  
  [mpeg2video @ 0x16d72c0] invalid mb type in I Frame at 0 17
  
  [mpeg2video @ 0x16d72c0] invalid mb type in I Frame at 0 18
  
  [mpeg2video @ 0x16d72c0] invalid mb type in I Frame at 0 19
  
  [mpeg2video @ 0x16d72c0] ac-tex damaged at 0 20
  
  [mpeg2video @ 0x16d72c0] ac-tex damaged at 0 21
  
  [mpeg2video @ 0x16d72c0] ac-tex damaged at 0 22
  
  [mpeg2video @ 0x16d72c0] ac-tex damaged at 0 23
  
  [mpeg2video @ 0x16d72c0] ac-tex damaged at 17 11
  
  [mpeg2video @ 0x16d72c0] ac-tex damaged at 0 24
  
  [mpeg2video @ 0x16d72c0] ac-tex damaged at 0 25
  
  [mpeg2video @ 0x16d72c0] ac-tex damaged at 0 26
  
  [mpeg2video @ 0x16d72c0] ac-tex damaged at 0 27
  
  [mpeg2video @ 0x16d72c0] invalid mb type in I Frame at 0 31
  
  [mpeg2video @ 0x16d72c0] invalid mb type in I Frame at 0 32
  
  [mpeg2video @ 0x16d72c0] invalid mb type in I Frame at 0 33
  
  [mpeg2video @ 0x16d72c0] invalid mb type in I Frame at 0 34
  
  [mpeg2video @ 0x16d72c0] invalid mb type in I Frame at 0 35
  
  [mpeg2video @ 0x16d72c0] Warning MVs not available
  
  [mpeg2video @ 0x16d72c0] concealing 1125 DC, 1125 AC, 1125 MV errors in I frame
  
  RTP: missed 11 packets
  
  RTP: missed 37 packets
  
  [ac3 @ 0x1676bc0] exponent out-of-range
  
  [ac3 @ 0x1676bc0] error decoding the audio block
  
  [ac3 @ 0x1676bc0] frame sync error
  
  Error while decoding stream #0:0: Invalid data found when processing input
  
  [ac3 @ 0x1676bc0] exponent out-of-range
  
  [ac3 @ 0x1676bc0] error decoding the audio block
  
  RTP: missed 21 packets
  
  RTP: missed 32 packets
  
  [mpeg2video @ 0x16d72c0] ac-tex damaged at 1 4
  
  [mpeg2video @ 0x16d72c0] Warning MVs not available
  
  [mpeg2video @ 0x16d72c0] concealing 1080 DC, 1080 AC, 1080 MV errors in B frame
  
  [mpeg2video @ 0x16d72c0] 00 motion_type at 21 27
  
  [mpeg2video @ 0x16d72c0] 00 motion_type at 2 26
  
  [mpeg2video @ 0x16d72c0] 00 motion_type at 0 27
  
  [mpeg2video @ 0x16d72c0] invalid cbp -1 at 2 1
  
  [mpeg2video @ 0x16d72c0] 00 motion_type at 5 2
  
  [mpeg2video @ 0x16d72c0] skip with previntra
  
  [mpeg2video @ 0x16d72c0] 00 motion_type at 2 4
  
  [mpeg2video @ 0x16d72c0] slice mismatch
  
  [mpeg2video @ 0x16d72c0] 00 motion_type at 1 6
  
  [mpeg2video @ 0x16d72c0] ac-tex damaged at 3 7
  
  [mpeg2video @ 0x16d72c0] slice mismatch
  
  [mpeg2video @ 0x16d72c0] 00 motion_type at 37 9
  
  [mpeg2video @ 0x16d72c0] 00 motion_type at 1 10
  
  [mpeg2video @ 0x16d72c0] mb incr damaged
  
  [mpeg2video @ 0x16d72c0] 00 motion_type at 1 31
  
  [mpeg2video @ 0x16d72c0] 00 motion_type at 5 32
  
  [mpeg2video @ 0x16d72c0] 00 motion_type at 1 33
  
  [mpeg2video @ 0x16d72c0] mb incr damaged
  
  [mpeg2video @ 0x16d72c0] ac-tex damaged at 26 35
  
  [mpeg2video @ 0x16d72c0] Warning MVs not available
  
  [mpeg2video @ 0x16d72c0] concealing 945 DC, 945 AC, 945 MV errors in B frame
  
  [rtsp @ 0x1627c20] PES packet size mismatchze=     294kB time=00:00:05.27 bitrate= 457.1kbits/s
  
  [ac3 @ 0x1676bc0] frame sync error
  
  Error while decoding stream #0:0: Invalid data found when processing input
  
  [ac3 @ 0x1676bc0] exponent out-of-range
  
  [ac3 @ 0x1676bc0] error decoding the audio block
  
  [ac3 @ 0x1676bc0] frame sync error
  
  Error while decoding stream #0:0: Invalid data found when processing input
  
  RTP: missed 38 packets25.0 q=26.0 q=22.0 size=     320kB time=00:00:11.18 bitrate= 234.3kbits/s
  
  RTP: missed 18 packets
  
  RTP: missed 9 packets
  
  RTP: missed 21 packets
  
  RTP: missed 9 packets
  
  [rtsp @ 0x1627c20] PES packet size mismatch
  
  [ac3 @ 0x1676bc0] exponent out-of-range
  
  [ac3 @ 0x1676bc0] error decoding the audio block
  
  [ac3 @ 0x1676bc0] frame sync error
  
  Error while decoding stream #0:0: Invalid data found when processing input
  
  [ac3 @ 0x1676bc0] bandwidth code = 63 > 60
  
  [ac3 @ 0x1676bc0] error decoding the audio block
  
  RTP: missed 13 packets
  
  [mpeg2video @ 0x16d72c0] mb incr damaged
  
  [mpeg2video @ 0x16d72c0] ac-tex damaged at 3 6
  
  [mpeg2video @ 0x16d72c0] 00 motion_type at 1 16
  
  [mpeg2video @ 0x16d72c0] ac-tex damaged at 0 17
  
  [mpeg2video @ 0x16d72c0] 00 motion_type at 5 21
  
  [mpeg2video @ 0x16d72c0] 00 motion_type at 3 27
  
  [mpeg2video @ 0x16d72c0] invalid cbp -1 at 7 32
  
  [mpeg2video @ 0x16d72c0] ac-tex damaged at 8 32
  
  [mpeg2video @ 0x16d72c0] slice mismatch
  
      Last message repeated 2 times
  
  [mpeg2video @ 0x16d72c0] Warning MVs not available
  
  [mpeg2video @ 0x16d72c0] concealing 810 DC, 810 AC, 810 MV errors in P frame
  
  RTP: missed 44 packets
  
  [rtsp @ 0x1627c20] PES packet size mismatch
  
  [ac3 @ 0x1676bc0] frame sync error
  
  Error while decoding stream #0:0: Invalid data found when processing input
  
  [ac3 @ 0x1676bc0] exponent out-of-range0 size=     338kB time=00:00:11.43 bitrate= 242.2kbits/s
  
  [ac3 @ 0x1676bc0] error decoding the audio block
  
  RTP: missed 35 packets
  
      Last message repeated 1 times
  
  RTP: missed 31 packets
  
  [ac3 @ 0x1676bc0] frame sync error
  
  Error while decoding stream #0:0: Invalid data found when processing input
  
  [ac3 @ 0x1676bc0] exponent out-of-range
  
  [ac3 @ 0x1676bc0] error decoding the audio block
  
  [ac3 @ 0x1676bc0] frame sync error
  
  Error while decoding stream #0:0: Invalid data found when processing input
  
  RTP: missed 48 packets
  
  [mpeg2video @ 0x16d72c0] ac-tex damaged at 5 23
  
  [mpeg2video @ 0x16d72c0] mb incr damaged
  
  [mpeg2video @ 0x16d72c0] 00 motion_type at 17 24
  
  [mpeg2video @ 0x16d72c0] slice mismatch
  
      Last message repeated 1 times
  
  [mpeg2video @ 0x16d72c0] ac-tex damaged at 5 27
  
  [mpeg2video @ 0x16d72c0] skip with previntra
  
  [mpeg2video @ 0x16d72c0] 00 motion_type at 15 29
  
  [mpeg2video @ 0x16d72c0] 00 motion_type at 8 31
  
  [mpeg2video @ 0x16d72c0] 00 motion_type at 13 32
  
  [mpeg2video @ 0x16d72c0] 00 motion_type at 22 33
  
  [mpeg2video @ 0x16d72c0] 00 motion_type at 20 34
  
  [mpeg2video @ 0x16d72c0] 00 motion_type at 17 35
  
  [mpeg2video @ 0x16d72c0] Warning MVs not available
  
  [mpeg2video @ 0x16d72c0] concealing 543 DC, 543 AC, 543 MV errors in B frame
  
  [mpeg2video @ 0x16d72c0] 00 motion_type at 16 1
  
  [mpeg2video @ 0x16d72c0] ac-tex damaged at 11 13
  
  [mpeg2video @ 0x16d72c0] invalid mb type in P Frame at 4 7
  
  [mpeg2video @ 0x16d72c0] 00 motion_type at 2 8
  
  [mpeg2video @ 0x16d72c0] invalid cbp 0 at 0 19
  
  [mpeg2video @ 0x16d72c0] invalid cbp 0 at 0 20
  
  [mpeg2video @ 0x16d72c0] 00 motion_type at 9 21
  
  [mpeg2video @ 0x16d72c0] ac-tex damaged at 2 22
  
  [mpeg2video @ 0x16d72c0] 00 motion_type at 10 23
  
  [mpeg2video @ 0x16d72c0] slice mismatch
  
  [mpeg2video @ 0x16d72c0] invalid mb type in P Frame at 1 25
  
  [mpeg2video @ 0x16d72c0] invalid cbp 0 at 38 26
  
  [mpeg2video @ 0x16d72c0] invalid mb type in P Frame at 3 27
  
  [mpeg2video @ 0x16d72c0] invalid mb type in P Frame at 22 28
  
  [mpeg2video @ 0x16d72c0] 00 motion_type at 16 29
  
  [mpeg2video @ 0x16d72c0] ac-tex damaged at 5 30
  
  [mpeg2video @ 0x16d72c0] 00 motion_type at 14 31
  
  [mpeg2video @ 0x16d72c0] ac-tex damaged at 2 32
  
  [mpeg2video @ 0x16d72c0] invalid mb type in P Frame at 19 9
  
  [mpeg2video @ 0x16d72c0] invalid mb type in P Frame at 11 10
  
  [mpeg2video @ 0x16d72c0] ac-tex damaged at 13 11
  
  [mpeg2video @ 0x16d72c0] ac-tex damaged at 8 12
  
  [mpeg2video @ 0x16d72c0] 00 motion_type at 33 13
  
  [mpeg2video @ 0x16d72c0] ac-tex damaged at 8 14
  
  [mpeg2video @ 0x16d72c0] invalid cbp -1 at 6 15
  
  [mpeg2video @ 0x16d72c0] invalid cbp -1 at 15 19
  
  [mpeg2video @ 0x16d72c0] 00 motion_type at 9 18
  
  [mpeg2video @ 0x16d72c0] mb incr damaged
  
  [mpeg2video @ 0x16d72c0] invalid cbp -1 at 15 21
  
  [mpeg2video @ 0x16d72c0] 00 motion_type at 13 21
  
  [mpeg2video @ 0x16d72c0] invalid cbp 0 at 16 22
  
  [mpeg2video @ 0x16d72c0] ac-tex damaged at 5 23
  
  [mpeg2video @ 0x16d72c0] ac-tex damaged at 4 24
  
  [mpeg2video @ 0x16d72c0] mb incr damaged
  
  [mpeg2video @ 0x16d72c0] 00 motion_type at 7 26
  
  [mpeg2video @ 0x16d72c0] slice mismatch
  
  [mpeg2video @ 0x16d72c0] 00 motion_type at 9 13
  
  [mpeg2video @ 0x16d72c0] ac-tex damaged at 44 14
  
  [mpeg2video @ 0x16d72c0] invalid cbp 0 at 2 15
  
  [mpeg2video @ 0x16d72c0] mb incr damaged
  
      Last message repeated 1 times
  
  [mpeg2video @ 0x16d72c0] 00 motion_type at 34 18
  
  [mpeg2video @ 0x16d72c0] 00 motion_type at 15 19
  
  [mpeg2video @ 0x16d72c0] mb incr damaged
  
  [mpeg2video @ 0x16d72c0] 00 motion_type at 8 21
  
  [mpeg2video @ 0x16d72c0] ac-tex damaged at 14 22
  
  [mpeg2video @ 0x16d72c0] invalid cbp -1 at 9 23
  
  [mpeg2video @ 0x16d72c0] invalid cbp 0 at 4 24
  
  [mpeg2video @ 0x16d72c0] mb incr damaged
  
  [mpeg2video @ 0x16d72c0] slice mismatch
  
      Last message repeated 1 times
  
  [mpeg2video @ 0x16d72c0] mb incr damaged
  
  [mpeg2video @ 0x16d72c0] ac-tex damaged at 25 29
  
  [mpeg2video @ 0x16d72c0] invalid cbp 0 at 14 30
  
  [mpeg2video @ 0x16d72c0] mb incr damaged
  
      Last message repeated 1 times
  
  [mpeg2video @ 0x16d72c0] 00 motion_type at 35 33
  
  [mpeg2video @ 0x16d72c0] slice mismatch
  
  [mpeg2video @ 0x16d72c0] Warning MVs not available
  
  [mpeg2video @ 0x16d72c0] concealing 1350 DC, 1350 AC, 1350 MV errors in P frame
  
  [flv @ 0x16d7c40] Failed to update header with correct duration.:00:12.12 bitrate= 241.4kbits/s
  
  [flv @ 0x16d7c40] Failed to update header with correct filesize.
  
  [flv @ 0x16df5a0] Failed to update header with correct duration.
  
  [flv @ 0x16df5a0] Failed to update header with correct filesize.
  
  [flv @ 0x16cbe00] Failed to update header with correct duration.
  
  [flv @ 0x16cbe00] Failed to update header with correct filesize.
  
  frame=  136 fps= 12 q=-1.0 Lq=-1.0 q=-1.0 size=     633kB time=00:00:13.24 bitrate= 391.8kbits/s
  
  video:7049kB audio:272kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
  
  [libx264 @ 0x182b140] frame I:4     Avg QP:19.84  size: 33269
  
  [libx264 @ 0x182b140] frame P:132   Avg QP:21.93  size:  3136
  
  [libx264 @ 0x182b140] mb I  I16..4:  6.9%  0.0% 93.1%
  
  [libx264 @ 0x182b140] mb P  I16..4:  0.1%  0.0%  0.7%  P16..4: 32.0% 11.6%  4.4%  0.0%  0.0%    skip:51.1%
  
  [libx264 @ 0x182b140] coded y,uvDC,uvAC intra: 91.1% 88.6% 67.5% inter: 14.8% 20.2% 1.5%
  
  [libx264 @ 0x182b140] i16 v,h,dc,p: 35% 15%  3% 47%
  
  [libx264 @ 0x182b140] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 31% 19%  9%  6%  7%  8%  7%  7%  7%
  
  [libx264 @ 0x182b140] i8c dc,h,v,p: 45% 20% 28%  7%
  
  [libx264 @ 0x182b140] ref P L0: 80.5% 11.2%  8.4%
  
  [libx264 @ 0x182b140] kb/s:369.61
  
  [libx264 @ 0x16e03c0] frame I:4     Avg QP:19.81  size: 77367
  
  [libx264 @ 0x16e03c0] frame P:132   Avg QP:21.64  size:  9825
  
  [libx264 @ 0x16e03c0] mb I  I16..4: 16.2%  0.0% 83.8%
  
  [libx264 @ 0x16e03c0] mb P  I16..4:  0.6%  0.0%  1.2%  P16..4: 34.1%  9.5%  2.9%  0.0%  0.0%    skip:51.8%
  
  [libx264 @ 0x16e03c0] coded y,uvDC,uvAC intra: 76.8% 77.3% 41.8% inter: 11.9% 20.4% 0.7%
  
  [libx264 @ 0x16e03c0] i16 v,h,dc,p: 38% 18%  7% 37%
  
  [libx264 @ 0x16e03c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 30% 22% 10%  5%  7%  7%  7%  6%  6%
  
  [libx264 @ 0x16e03c0] i8c dc,h,v,p: 47% 21% 26%  6%
  
  [libx264 @ 0x16e03c0] ref P L0: 80.8% 12.1%  7.1%
  
  [libx264 @ 0x16e03c0] kb/s:1085.42
  
  [libx264 @ 0x16cc880] frame I:4     Avg QP:15.79  size:181630
  
  [libx264 @ 0x16cc880] frame P:132   Avg QP:18.21  size: 32848
  
  [libx264 @ 0x16cc880] mb I  I16..4: 13.7%  0.0% 86.3%
  
  [libx264 @ 0x16cc880] mb P  I16..4:  1.3%  0.0%  2.7%  P16..4: 36.0% 14.2%  4.4%  0.0%  0.0%    skip:41.4%
  
  [libx264 @ 0x16cc880] coded y,uvDC,uvAC intra: 72.4% 70.6% 41.8% inter: 17.3% 24.9% 1.5%
  
  [libx264 @ 0x16cc880] i16 v,h,dc,p: 33% 21%  6% 39%
  
  [libx264 @ 0x16cc880] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 30% 23%  9%  5%  8%  7%  7%  6%  5%
  
  [libx264 @ 0x16cc880] i8c dc,h,v,p: 44% 21% 27%  8%
  
  [libx264 @ 0x16cc880] ref P L0: 80.3% 12.7%  7.0%
  
  [libx264 @ 0x16cc880] kb/s:3420.59

• C# on linux : FFmpeg (FFMediaToolkit) MediaOutput..Video.AddFrame(FrameToImageData(ImageData)) causes program to exit with code 139

  19 mai 2021, par Jan Černý

  In my C# program I have instance of MediaOutput from FFMediaToolkit. It is initialized like this :

  


  MediaOutput buffer = MediaBuilder.CreateContainer(videoPath).WithVideo(new VideoEncoderSettings(width: width,
                height: height, framerate: frameRate,
                codec: VideoCodec.H264)
            ).Create();


  


  When I want to add frame to buffer I use this code :

  


  private static ImageData FrameToImageData(Bitmap bitmap) {
    Rectangle rect = new Rectangle(System.Drawing.Point.Empty, bitmap.Size);
    BitmapData bitLock = bitmap.LockBits(rect, ImageLockMode.ReadOnly, PixelFormat.Format24bppRgb);
    ImageData bitmapImageData = ImageData.FromPointer(bitLock.Scan0, ImagePixelFormat.Bgr24, bitmap.Size);
    bitmap.UnlockBits(bitLock);
    return bitmapImageData;
}

public void AddFrame(Bitmap frame) {
    buffer.Video.AddFrame(FrameToImageData(frame));
}


  


  But when code reaches buffer.Video.AddFrame(); it exits with code 139 without throwing any exception.

  


  I have two test files and only one is causing it. One is .png file 100x100 and it works fine. The other is .png file 1000x1000 and it makes program exit as soon as it reaches this method.

  


  What exit code 139 means in C# ?
  
How can I diagnose this problem when it is not throwing any exceptions ?
  
How can I fix it ?

  


  Thank you for help. If you need any more information, leave a comment and I will add it soon as possible.

  


  Edit1 :
  
This is my instel drivers :

  


  john@arch-thinkpad ~> yay -Qs intel
local/intel-gmmlib 21.1.1-1
    Intel Graphics Memory Management Library
local/intel-media-driver 21.1.3-1
    Intel Media Driver for VAAPI — Broadwell+ iGPUs
local/intel-media-sdk 21.1.3-1
    API to access hardware-accelerated video on Intel Gen graphics hardware platforms
local/intel-mkl 2020.4.304-1
    Intel Math Kernel Library
local/intel-ucode 20210216-1
    Microcode update files for Intel CPUs
local/intellij-idea-ultimate-edition 2021.1.1-1
    An intelligent IDE for Java, Groovy and other programming languages with advanced refactoring features intensely focused on developer productivity.
local/libmfx 21.1.3-1
    Intel Media SDK dispatcher library
local/libva-intel-driver 2.4.1-1
    VA-API implementation for Intel G45 and HD Graphics family
local/onednn 2.2.2-1
    oneAPI Deep Neural Network Library (oneDNN)
local/tbb 2020.3-1
    High level abstract threading library
local/xf86-video-intel 1:2.99.917+916+g31486f40-1 (xorg-drivers)
    X.org Intel i810/i830/i915/945G/G965+ video drivers


  


  EDIT2 :

  


  [17091.524781] Slimulator[20962]: segfault at 7fd84003a011 ip 00007fd8400cd348 sp 00007ffddd9d7fb8 error 4 in libswscale.so.5.9.100[7fd840062000+75000]
[17091.524791] Code: 45 85 c0 0f 8e 58 01 00 00 41 8d 40 ff 49 89 cc 48 89 d5 48 89 f9 48 89 44 24 f8 44 89 c0 31 f6 48 89 44 24 e0 0f 1f 44 00 00 <0f> b6 41 01 44 0f b6 41 02 48 83 c1 06 44 8b 7c 24 d4 8b 54 24 d8
[17091.524829] audit: type=1701 audit(1621440058.690:188): auid=1000 uid=1000 gid=1000 ses=1 pid=20962 comm="Slimulator" exe="/home/john/Projects/Slimulator/bin/Debug/net5.0/Slimulator" sig=11 res=1
[17091.546116] audit: type=1334 audit(1621440058.713:189): prog-id=61 op=LOAD
[17091.546209] audit: type=1334 audit(1621440058.713:190): prog-id=62 op=LOAD
[17091.546262] audit: type=1334 audit(1621440058.713:191): prog-id=63 op=LOAD
[17091.547395] audit: type=1130 audit(1621440058.713:192): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@6-20996-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[17094.458151] audit: type=1131 audit(1621440061.623:193): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@6-20996-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[17094.542823] audit: type=1334 audit(1621440061.710:194): prog-id=63 op=UNLOAD
[17094.542832] audit: type=1334 audit(1621440061.710:195): prog-id=62 op=UNLOAD
[17094.542836] audit: type=1334 audit(1621440061.710:196): prog-id=61 op=UNLOAD
[17295.099124] Slimulator[21147]: segfault at 7f555b1de011 ip 00007f555b271348 sp 00007fff48239f48 error 4 in libswscale.so.5.9.100[7f555b206000+75000]
[17295.099132] Code: 45 85 c0 0f 8e 58 01 00 00 41 8d 40 ff 49 89 cc 48 89 d5 48 89 f9 48 89 44 24 f8 44 89 c0 31 f6 48 89 44 24 e0 0f 1f 44 00 00 <0f> b6 41 01 44 0f b6 41 02 48 83 c1 06 44 8b 7c 24 d4 8b 54 24 d8
[17295.099197] audit: type=1701 audit(1621440262.267:197): auid=1000 uid=1000 gid=1000 ses=1 pid=21147 comm="Slimulator" exe="/home/john/Projects/Slimulator/bin/Debug/net5.0/Slimulator" sig=11 res=1
[17295.108536] audit: type=1334 audit(1621440262.277:198): prog-id=64 op=LOAD
[17295.108679] audit: type=1334 audit(1621440262.277:199): prog-id=65 op=LOAD
[17295.108752] audit: type=1334 audit(1621440262.277:200): prog-id=66 op=LOAD
[17295.109589] audit: type=1130 audit(1621440262.277:201): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@7-21181-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[17297.322989] audit: type=1131 audit(1621440264.487:202): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@7-21181-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[17297.401409] audit: type=1334 audit(1621440264.571:203): prog-id=66 op=UNLOAD
[17297.401421] audit: type=1334 audit(1621440264.571:204): prog-id=65 op=UNLOAD
[17297.401426] audit: type=1334 audit(1621440264.571:205): prog-id=64 op=UNLOAD
[17353.331142] Slimulator[21281]: segfault at 7f35f1fd3011 ip 00007f35f2066348 sp 00007ffe7d1288e8 error 4 in libswscale.so.5.9.100[7f35f1ffb000+75000]
[17353.331160] Code: 45 85 c0 0f 8e 58 01 00 00 41 8d 40 ff 49 89 cc 48 89 d5 48 89 f9 48 89 44 24 f8 44 89 c0 31 f6 48 89 44 24 e0 0f 1f 44 00 00 <0f> b6 41 01 44 0f b6 41 02 48 83 c1 06 44 8b 7c 24 d4 8b 54 24 d8
[17353.331214] audit: type=1701 audit(1621440320.498:206): auid=1000 uid=1000 gid=1000 ses=1 pid=21281 comm="Slimulator" exe="/home/john/Projects/Slimulator/bin/Debug/net5.0/Slimulator" sig=11 res=1
[17353.344382] audit: type=1334 audit(1621440320.511:207): prog-id=67 op=LOAD
[17353.344518] audit: type=1334 audit(1621440320.511:208): prog-id=68 op=LOAD
[17353.344566] audit: type=1334 audit(1621440320.511:209): prog-id=69 op=LOAD
[17353.345651] audit: type=1130 audit(1621440320.511:210): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@8-21378-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[17356.180885] audit: type=1131 audit(1621440323.345:211): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@8-21378-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[17356.261051] audit: type=1334 audit(1621440323.428:212): prog-id=69 op=UNLOAD
[17356.261055] audit: type=1334 audit(1621440323.428:213): prog-id=68 op=UNLOAD
[17356.261057] audit: type=1334 audit(1621440323.428:214): prog-id=67 op=UNLOAD
[17379.499165] Slimulator[21454]: segfault at 7f68418a1011 ip 00007f6841934348 sp 00007ffea9f22eb8 error 4 in libswscale.so.5.9.100[7f68418c9000+75000]
[17379.499174] Code: 45 85 c0 0f 8e 58 01 00 00 41 8d 40 ff 49 89 cc 48 89 d5 48 89 f9 48 89 44 24 f8 44 89 c0 31 f6 48 89 44 24 e0 0f 1f 44 00 00 <0f> b6 41 01 44 0f b6 41 02 48 83 c1 06 44 8b 7c 24 d4 8b 54 24 d8
[17379.499245] audit: type=1701 audit(1621440346.665:215): auid=1000 uid=1000 gid=1000 ses=1 pid=21454 comm="Slimulator" exe="/home/john/Projects/Slimulator/bin/Debug/net5.0/Slimulator" sig=11 res=1
[17379.509368] audit: type=1334 audit(1621440346.675:216): prog-id=70 op=LOAD
[17379.509448] audit: type=1334 audit(1621440346.675:217): prog-id=71 op=LOAD
[17379.509481] audit: type=1334 audit(1621440346.675:218): prog-id=72 op=LOAD
[17379.510098] audit: type=1130 audit(1621440346.675:219): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@9-21492-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[17381.661151] audit: type=1131 audit(1621440348.828:220): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@9-21492-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[17381.740919] audit: type=1334 audit(1621440348.908:221): prog-id=72 op=UNLOAD
[17381.740924] audit: type=1334 audit(1621440348.908:222): prog-id=71 op=UNLOAD
[17381.740926] audit: type=1334 audit(1621440348.908:223): prog-id=70 op=UNLOAD
[17389.743524] Slimulator[21565]: segfault at 7f95075a4011 ip 00007f9507637348 sp 00007ffccfab3f18 error 4 in libswscale.so.5.9.100[7f95075cc000+75000]
[17389.743535] Code: 45 85 c0 0f 8e 58 01 00 00 41 8d 40 ff 49 89 cc 48 89 d5 48 89 f9 48 89 44 24 f8 44 89 c0 31 f6 48 89 44 24 e0 0f 1f 44 00 00 <0f> b6 41 01 44 0f b6 41 02 48 83 c1 06 44 8b 7c 24 d4 8b 54 24 d8
[17389.743613] audit: type=1701 audit(1621440356.908:224): auid=1000 uid=1000 gid=1000 ses=1 pid=21565 comm="Slimulator" exe="/home/john/Projects/Slimulator/bin/Debug/net5.0/Slimulator" sig=11 res=1
[17389.753604] audit: type=1334 audit(1621440356.918:225): prog-id=73 op=LOAD
[17389.753783] audit: type=1334 audit(1621440356.918:226): prog-id=74 op=LOAD
[17389.753847] audit: type=1334 audit(1621440356.918:227): prog-id=75 op=LOAD
[17389.755847] audit: type=1130 audit(1621440356.921:228): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@10-21600-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[17392.121917] audit: type=1131 audit(1621440359.288:229): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@10-21600-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[17392.204160] audit: type=1334 audit(1621440359.371:230): prog-id=75 op=UNLOAD
[17392.204167] audit: type=1334 audit(1621440359.371:231): prog-id=74 op=UNLOAD
[17392.204169] audit: type=1334 audit(1621440359.371:232): prog-id=73 op=UNLOAD
[17409.596374] Slimulator[21674]: segfault at 7fddab4c5011 ip 00007fddab558348 sp 00007ffe55e75e28 error 4 in libswscale.so.5.9.100[7fddab4ed000+75000]
[17409.596383] Code: 45 85 c0 0f 8e 58 01 00 00 41 8d 40 ff 49 89 cc 48 89 d5 48 89 f9 48 89 44 24 f8 44 89 c0 31 f6 48 89 44 24 e0 0f 1f 44 00 00 <0f> b6 41 01 44 0f b6 41 02 48 83 c1 06 44 8b 7c 24 d4 8b 54 24 d8
[17409.596441] audit: type=1701 audit(1621440376.762:233): auid=1000 uid=1000 gid=1000 ses=1 pid=21674 comm="Slimulator" exe="/home/john/Projects/Slimulator/bin/Debug/net5.0/Slimulator" sig=11 res=1
[17409.606014] audit: type=1334 audit(1621440376.772:234): prog-id=76 op=LOAD
[17409.606096] audit: type=1334 audit(1621440376.772:235): prog-id=77 op=LOAD
[17409.606139] audit: type=1334 audit(1621440376.772:236): prog-id=78 op=LOAD
[17409.606845] audit: type=1130 audit(1621440376.772:237): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@11-21706-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[17411.977651] audit: type=1131 audit(1621440379.145:238): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@11-21706-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[17412.074091] audit: type=1334 audit(1621440379.242:239): prog-id=78 op=UNLOAD
[17412.074098] audit: type=1334 audit(1621440379.242:240): prog-id=77 op=UNLOAD
[17412.074101] audit: type=1334 audit(1621440379.242:241): prog-id=76 op=UNLOAD
[17431.213606] Slimulator[21785]: segfault at 7f218cdca011 ip 00007f218ce5d348 sp 00007ffffd122a98 error 4 in libswscale.so.5.9.100[7f218cdf2000+75000]
[17431.213616] Code: 45 85 c0 0f 8e 58 01 00 00 41 8d 40 ff 49 89 cc 48 89 d5 48 89 f9 48 89 44 24 f8 44 89 c0 31 f6 48 89 44 24 e0 0f 1f 44 00 00 <0f> b6 41 01 44 0f b6 41 02 48 83 c1 06 44 8b 7c 24 d4 8b 54 24 d8
[17431.213648] audit: type=1701 audit(1621440398.378:242): auid=1000 uid=1000 gid=1000 ses=1 pid=21785 comm="Slimulator" exe="/home/john/Projects/Slimulator/bin/Debug/net5.0/Slimulator" sig=11 res=1
[17431.223086] audit: type=1334 audit(1621440398.388:243): prog-id=79 op=LOAD
[17431.223210] audit: type=1334 audit(1621440398.388:244): prog-id=80 op=LOAD
[17431.223272] audit: type=1334 audit(1621440398.388:245): prog-id=81 op=LOAD
[17431.224003] audit: type=1130 audit(1621440398.392:246): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@12-21817-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
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[17683.442450] Slimulator[22349]: segfault at 7fce7b840011 ip 00007fce7b8d3348 sp 00007ffdf12fde88 error 4 in libswscale.so.5.9.100[7fce7b868000+75000]
[17683.442461] Code: 45 85 c0 0f 8e 58 01 00 00 41 8d 40 ff 49 89 cc 48 89 d5 48 89 f9 48 89 44 24 f8 44 89 c0 31 f6 48 89 44 24 e0 0f 1f 44 00 00 <0f> b6 41 01 44 0f b6 41 02 48 83 c1 06 44 8b 7c 24 d4 8b 54 24 d8
[17683.442489] audit: type=1701 audit(1621440650.613:260): auid=1000 uid=1000 gid=1000 ses=1 pid=22349 comm="Slimulator" exe="/home/john/Projects/Slimulator/bin/Debug/net5.0/Slimulator" sig=11 res=1
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[17826.501073] Slimulator[22630]: segfault at 7efff17b2011 ip 00007efff1845348 sp 00007ffe58353908 error 4 in libswscale.so.5.9.100[7efff17da000+75000]
[17826.501081] Code: 45 85 c0 0f 8e 58 01 00 00 41 8d 40 ff 49 89 cc 48 89 d5 48 89 f9 48 89 44 24 f8 44 89 c0 31 f6 48 89 44 24 e0 0f 1f 44 00 00 <0f> b6 41 01 44 0f b6 41 02 48 83 c1 06 44 8b 7c 24 d4 8b 54 24 d8
[17826.501144] audit: type=1701 audit(1621440793.671:278): auid=1000 uid=1000 gid=1000 ses=1 pid=22630 comm="Slimulator" exe="/home/john/Projects/Slimulator/bin/Debug/net5.0/Slimulator" sig=11 res=1
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[18255.197203] Slimulator[23128]: segfault at 7f44e8746011 ip 00007f44e87d9348 sp 00007ffdfc25d318 error 4 in libswscale.so.5.9.100[7f44e876e000+75000]
[18255.197213] Code: 45 85 c0 0f 8e 58 01 00 00 41 8d 40 ff 49 89 cc 48 89 d5 48 89 f9 48 89 44 24 f8 44 89 c0 31 f6 48 89 44 24 e0 0f 1f 44 00 00 <0f> b6 41 01 44 0f b6 41 02 48 83 c1 06 44 8b 7c 24 d4 8b 54 24 d8
[18255.197237] audit: type=1701 audit(1621441222.370:287): auid=1000 uid=1000 gid=1000 ses=1 pid=23128 comm="Slimulator" exe="/home/john/Projects/Slimulator/bin/Debug/net5.0/Slimulator" sig=11 res=1
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[18527.198876] Slimulator[23504]: segfault at 7fd59543e011 ip 00007fd5954d1348 sp 00007ffcc5d59e78 error 4 in libswscale.so.5.9.100[7fd595466000+75000]
[18527.198885] Code: 45 85 c0 0f 8e 58 01 00 00 41 8d 40 ff 49 89 cc 48 89 d5 48 89 f9 48 89 44 24 f8 44 89 c0 31 f6 48 89 44 24 e0 0f 1f 44 00 00 <0f> b6 41 01 44 0f b6 41 02 48 83 c1 06 44 8b 7c 24 d4 8b 54 24 d8
[18527.198911] audit: type=1701 audit(1621441494.371:304): auid=1000 uid=1000 gid=1000 ses=1 pid=23504 comm="Slimulator" exe="/home/john/Projects/Slimulator/bin/Debug/net5.0/Slimulator" sig=11 res=1
[18527.207861] audit: type=1334 audit(1621441494.381:305): prog-id=100 op=LOAD
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[18530.192509] audit: type=1131 audit(1621441497.364:309): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@18-23538-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
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[18788.989941] i915 0000:00:02.0: [drm] *ERROR* Atomic update failure on pipe B (start=1126979 end=1126980) time 153 us, min 1073, max 1079, scanline start 1072, end 1082
[18793.024933] audit: type=1334 audit(1621441760.199:313): prog-id=103 op=LOAD
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[19615.817516] Slimulator[24574]: segfault at 7fb94cbbd011 ip 00007fb94cc50348 sp 00007fffefd935c8 error 4 in libswscale.so.5.9.100[7fb94cbe5000+75000]
[19615.817524] Code: 45 85 c0 0f 8e 58 01 00 00 41 8d 40 ff 49 89 cc 48 89 d5 48 89 f9 48 89 44 24 f8 44 89 c0 31 f6 48 89 44 24 e0 0f 1f 44 00 00 <0f> b6 41 01 44 0f b6 41 02 48 83 c1 06 44 8b 7c 24 d4 8b 54 24 d8
[19615.817544] audit: type=1701 audit(1621442582.996:321): auid=1000 uid=1000 gid=1000 ses=1 pid=24574 comm="Slimulator" exe="/home/john/Projects/Slimulator/bin/Debug/net5.0/Slimulator" sig=11 res=1
[19615.825508] audit: type=1334 audit(1621442583.002:322): prog-id=106 op=LOAD
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[19617.863304] audit: type=1131 audit(1621442585.043:326): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@19-24609-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
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[20633.629288] Slimulator[25687]: segfault at 7fed842b8011 ip 00007fed8434b348 sp 00007ffcbf0f45d8 error 4 in libswscale.so.5.9.100[7fed842e0000+75000]
[20633.629298] Code: 45 85 c0 0f 8e 58 01 00 00 41 8d 40 ff 49 89 cc 48 89 d5 48 89 f9 48 89 44 24 f8 44 89 c0 31 f6 48 89 44 24 e0 0f 1f 44 00 00 <0f> b6 41 01 44 0f b6 41 02 48 83 c1 06 44 8b 7c 24 d4 8b 54 24 d8
[20633.629328] audit: type=1701 audit(1621443600.811:330): auid=1000 uid=1000 gid=1000 ses=1 pid=25687 comm="Slimulator" exe="/home/john/Projects/Slimulator/bin/Debug/net5.0/Slimulator" sig=11 res=1
[20633.640886] audit: type=1334 audit(1621443600.824:331): prog-id=109 op=LOAD
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[20636.411014] audit: type=1334 audit(1621443603.594:338): prog-id=109 op=UNLOAD


  


• The Guide to an Ethical Web : With Big Data Comes Big Responsibility

  13 mars, par Alex Carmona

  Roughly two-thirds of Earth’s 8 billion people use the internet for communication, education, entertainment, business and more. We are connected globally in ways previous generations could’ve never dreamed of. It’s been a wild ride, and we’re just starting.

  Many users have learned that experiences online can be a mix of good and bad. Sometimes, the bad can feel like it outweighs the good, particularly when large tech companies use our data shadily, cut corners on accessibility or act in any other way that devalues the human being behind the screen.

  As fellow internet citizens, what responsibility do we have to create a more ethical web for our customers ?

  In this article, we’ll look at ethical principles online and how to act (and not act) to build trust, reach customers regardless of ability, safeguard privacy and stay compliant while improving business outcomes.

  

  What is an “ethical web” ?

  When we talk about the ethical web, we’re talking about the use of the internet in an ethical way. Among other values, it involves transparency, consent and restraint. It applies the Golden Rule to the internet : Treat others (and their data and user experience) how you’d want yourself (and yours) to be treated. 

  With limited oversight, the internet has evolved in ways that often prioritise profit over user rights. While selling data or pushing cookies might seem logical in this context, they can undermine trust and reputation. And the tide is slowly but surely shifting as consumers and legislators push back.

  Consumers no longer want to buy from companies that will use their data in ways they don’t agree to. In 2022, 75% of UK and US consumers surveyed said they were uncomfortable purchasing from businesses with weak data ethics.

  Legislators worldwide have been taking part in this effort for nearly a decade, with laws like GDPR in the EU and LGPD in Brazil, as well as the various state laws in the US, like California’s CCPA and Virginia’s VCDPA. 

  Even tech giants are no longer above the law, like Meta, which was fined over a billion Euros for GDPR violations in 2023.

  

  These changes may make the internet feel less business-friendly at first glance, but ethical choices ultimately build a stronger digital ecosystem for both companies and consumers. 

  Likewise, all internet users alike can make this happen by shunning short-term profit and convenience for healthier, long-term choices and behaviour.

  As we dig into what it takes to build an ethical web, remember that no company or individual is free from mistakes in these areas nor is it an overnight fix. Progress is made one click at a time.

  Ethical SEO : Optimising your content and your ethics

  Content creation and search engine optimisation (SEO) require so much work that it’s hard to fault creators for not always abiding by search engine guidelines and seeking shortcuts – especially when there’s a sea of LinkedIn posts about how copying/pasting ChatGPT responses helped someone rank #1 for several keywords in one week.

  However, users turn to Google and other search engines for something of substance that will guide or entertain them.

  Content meets customer needs and is more likely to lead to sales when it’s well-written, original and optimised just enough to make it easier to find on the first page of results. This doesn’t happen when content teams dilute quality and waste a reader or viewer’s time on posts that will only yield a higher bounce rate.

  Some SEO pros do find success by building backlinks through private blog networks or crafting a million unedited posts with generative AI, but it’s short-lived. Google and other search engines always catch up, and their content plummets or gets penalised and delisted with every new update.

  Content teams can still rank at the top while sticking to ethical SEO principles. Here’s a sample list of dos and don’ts to get started :

  • Do put content quality above all else. Make content that serves the audience, not just a brand or partner ad network.
  • Do apply the E-E-A-T framework. Search engines value content written by authors who bring expertise, experience, authority and trust (E-E-A-T).
  • Don’t keyword stuff. This might have worked in the early days of SEO, but it hurts readability and now harms article performance.
  • Do use alt text as intended. While it can still help SEO, alt text should prioritise accessibility for users with screen readers.

  • Don’t steal content. Whether it’s violating copyright, copying/pasting other people’s content or simply paraphrasing without citation, companies should never steal content.
  • Don’t steal ideas. It’s okay to join in on a current conversation or trends in an industry, but content creators should be sure they have something valuable to add.
  • Do use AI tools as partners, not creators. AI can be an incredible aid in crafting content, but it should never be posted without a human’s touch.

  When we follow ethical SEO guidelines and get more clients with our content, how do we best handle their data ?

  Ethical data governance : Important principles and how to avoid data misuse

  Data governance comprises every aspect of how a company manages data, including storage, security, privacy, lifecycle management, setting policies and maintaining compliance with laws like GDPR and HIPAA.

  Applying data ethics to governance is doing it all in a transparent, restrained way that acknowledges an individual’s right to ownership over their data. 

  For organisations, this translates to getting consent to collect data and clearly spelling out how it will be stored and used — and sticking to it.

  If a user’s birth date is needed for legal reasons, it cannot be sold to a third party or later used for something else without explicit permission. Reusing data in ways that stray from its original purpose is a form of commingling, one of the data misuses that is easy for even well-intentioned teams to do accidentally.

  Ethical data governance also includes the vigilant safeguarding of users’ data and minimising potential privacy issues.

  Failing to implement and adhere to strong security measures leads to situations like the National Public Data (NPD) breach, where cyber criminals expose the addresses, phone numbers and social security numbers of hundreds of millions of people. This was due in large part to a weakness in storing login credentials and a lack of password policy enforcement.

  No one at NPD wanted this to happen, but security likely took a backseat to other business concerns, leading to the company’s filing for bankruptcy.

  More importantly, as a data broker that aggregates information from other sources, the people affected likely had no clue this organisation had been buying and selling their data. The companies originally entrusted with their information helped provide the leaked data, showing a lack of care for privacy.

  Situations like this reinforce the need for strict data protection laws and for companies to refine their data governance approach. 

  Businesses can improve their data governance posturing with managers and other higher-ups setting the right tone at the top. If leadership takes a firm and disciplined approach by setting and adhering to strong policies, the rest of the team will follow and minimise the chances of data misuse and security incidents.

  One way to start is by using tools that make the principles of data ethics easier to follow.

  Ethical web analytics : Drawing insights while respecting privacy

  Web analytics tools are designed to gather data about users and what they do while visiting a site.
  The most popular tool worldwide is Google Analytics (GA). Its brand name and feature set carry a lot of weight, but many former users have switched to alternatives due to dissatisfaction with the changes made in GA4 and reservations about the way Google handles data.

  

  Google is another tech giant that has been slapped with massive GDPR fines for issues over its data processing practices. It has run so afoul of compliance that it was banned in France and Austria for a while. Additionally, in the US Department of Justice’s ongoing antitrust lawsuit against Google, the company’s data tracking has been targeted for both how it affects users and potential rivals.

  Unlike GA, ethical web analytics tools allow websites to get the data they need while respecting user privacy.

  Matomo offers privacy protections like :

  • Providing data anonymisation and IP anonymisation
  • Allowing users the ability to not process personally identifiable information (PII)
  • Disabling the ability to track users across websites by default to make compliance easier
  • Giving users full control over their customer data without the risk of it getting into the hands of third parties
  • Much more

  We’re also fully transparent about how we handle your data on the web and in the Matomo Cloud and in how we build Matomo as an open-source tool. Our openness allows you to be more open with your customers and how you ethically use their data.

  There are other GDPR-compliant tools on the market, but some of them, like Adobe Analytics, require more setup from users for compliance, don’t grant full control over data and don’t offer on-premise options or consent-free tracking.

  Beyond tracking, there are other ways to make a user’s experience more enjoyable and ethical.

  Ethical user experience : User-friendliness, not user-hostility

  When designing a website or application, creating a positive user experience (UX) always comes first. 

  The UI should be simple to navigate, data and privacy policy information should be easy to find and customers should feel welcomed. They must never be tricked into consenting or installing. 

  When businesses resort to user-hostile tactics, the UX becomes a battle between the user and them. What may seem like a clever tactic to increase sign-ups can alienate potential customers and ruin a brand’s image. 

  Here are some best practices for creating a more ethical UX :

  Avoid dark patterns

  Dark patterns are UI designs and strategies that mislead users into paying for, agreeing to or doing something they don’t actually want. These designs are unethical because they’re manipulative and remove transparency and consent from the interaction. 

  In some cases, they’re illegal and can bring lawsuits. 

  In 2023, Italy’s Data Protection Authority (DPA) fined a digital marketing company €300,000 for alleged GDPR violations. They employed dark patterns by asking customers to accept cookies again after rejecting them and placing the option to reject cookies outside the cookie banner. 

  Despite their legality and 56% of surveyed customers losing trust in platforms that employ dark patterns, a review by the Organisation for Economic Co-operation and Development (OECD) found that 76% of the websites examined contained at least one dark pattern.

  

  If a company is worried that they may be relying on dark patterns, here are some examples of what to avoid :

  • Pre-ticking boxes to have users agree to third-party cookies, sign up for a newsletter, etc.
  • Complicated cookie banners without a one-click way to reject all unnecessary cookies
  • Hiding important text with text colour, under drop-down menus or requiring hovering over something with a mouse 
  • “Confirm shaming” users with emotionally manipulative language to delay subscription cancellations or opt out of tracking 

  Improve trust centres

  Trust centres are the sections of a website that outline how a company approaches topics like data governance, user privacy and security. 

  They should be easy to find and understand. If a user has a question about a company’s data policy, it should be one click away with language that doesn’t require a law degree to comprehend.

  Additionally, trust centres must cover all relevant details, including where data is stored and who does the subprocessing. This is an area where even some of the best-intentioned companies may miss the mark, but it’s also an easy fix and a great place to start creating a more ethical web.

  Embrace inclusivity

  People want to feel welcomed to the party — and deserve to be — regardless of their race, ethnicity, religion, gender identity, orientation or ability. 

  Inclusivity is great for customers and companies alike. 

  A study by the Unstereotype Alliance found that progressive marketing drove up short- and long-term sales, customer loyalty and purchase consideration. A Kantar study reported that 75% of surveyed customers around the world consider a company’s diversity and inclusivity when making a purchasing decision.

  An easy place to start embracing inclusivity is with a website’s blog images. The people in photos and cartoons should reflect a variety of different backgrounds.

  Another area to improve inclusivity is by making your site or app more accessible.

  Accessibility ethics : An internet for everyone

  Accessibility is designing your product in a way that everyone can enjoy or take part in, regardless of ability. Digital accessibility is applying this design to the web and applications by making accommodations like adding descriptive alt text to images for users with visual impairments.

  Just because someone has a hearing, vision, speech, mobility, neurological or other impairment doesn’t mean they have any less of a right to shop online, read silly listicles or get into arguments with strangers in the comment section.

  Beyond being the right thing to do, the Fable team shows there’s a strong business case for accessibility. People with disabilities have money to spend, and the accommodations businesses make for them often benefit people without disabilities, too – as anyone who streams with subtitles can attest.

  Despite being a win-win for greater inclusivity and business, much of the web is still inaccessible. WebAIM, a leader in web accessibility, studied a million web pages and found an average of over 55 accessibility errors per page.

  We must all play a more active role in improving the experience of our users with disabilities, and we can start with accessibility auditing and testing.

  An accessibility audit is an evaluation of how usable a site is for people with disabilities. It may be done in-house by an expert on a company’s team or, for better results, a third-party consultant who can give a fully objective audit.

  Auditing might consist of running an automated tool or manually checking your site, PDFs, emails and other materials for compliance with the Web Content Accessibility Guidelines list.

  Accessibility testing is narrower than auditing. It checks how accessibility or its absence looks in action. It can be done after a site, app, email or product is released, but it ideally starts in the development process.

  Testing should be done manually and with automated tools. Manual checks put developers in the position of their users, allowing them to get a better idea of what users are dealing with firsthand. Automated tools can save time and money, but there should always be manual testing in the process.

  Auditing gives teams an idea of where to start with improving accessibility, and testing helps make sure accommodations work as intended.

  Conclusion

  At Matomo, we strive to make the ethical web a reality, starting with web analytics.

  For our users, it means full compliance with stringent policies like GDPR and providing 100% accurate data. For their customers, it’s collecting only the data required to do the job and enabling cookieless configurations to get rid of annoying banners. 

  For both parties, it’s knowing that respect for privacy is one of our foundational values, whether it’s the ability to look under Matomo’s hood and read our open-source code, the option to store data on-premise to minimise the chances of it falling into the wrong hands or one of the other ways that we protect privacy.

  If you weren’t 100% ethical before, it’s never too late to change. You can even bring your Google Analytics data with you.

  Join us in our mission to improve the web. We can’t do it alone ! 

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