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• FFMPEG "Segmentation fault" with network stream source

  23 décembre 2023, par user11186466

  I use release : 4.2.2 (static) from "https://johnvansickle.com/ffmpeg/"

  



  Final code will be on "Amazon AWS lambda"

  



  Goal : use a url stream and add watermak

  



  Link to video : ​https://feoval.fr/519.mp4

  



  Link to Watermak : ​https://feoval.fr/watermark.png

  



  ./ffmpeg -i "https://feoval.fr/519.mp4" -i "./watermark.png" -filter_complex "overlay=W-w-10:H-h-10:format=rgb" -f "mp4" -movflags "frag_keyframe+empty_moov" -pix_fmt "yuv420p" test.mp4


  



  return "Segmentation fault"

  



  I have the same error on my computer and on AWS Lambda server

  



  ./ffmpeg -i "https://feoval.fr/519.mp4" -f "mp4" -movflags "frag_keyframe+empty_moov" -pix_fmt "yuv420p" test.mp4


  



  work (but not watermak)

  



  ./ffmpeg -i "./519.mp4" -i "./watermark.png" -filter_complex "overlay=W-w-10:H-h-10:format=rgb" -f "mp4" -movflags "frag_keyframe+empty_moov" -pix_fmt "yuv420p" test.mp4


  



  work (but not with stream)

  



  Thanks you very much !

  



  Logs for the first case who return "Segmentation fault" :

  



  ...
Stream mapping:
Stream #0:0 (h264) -> overlay:main (graph 0)
Stream #1:0 (png) -> overlay:overlay (graph 0)
overlay (graph 0) -> Stream #0:0 (libx264)
Stream #0:1 -> #0:1 (aac (native) -> aac (native))
Press [q] to stop, ? for help
[libx264 @ 0x742e480] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
[libx264 @ 0x742e480] profile High, level 3.1, 4:2:0, 8-bit
[libx264 @ 0x742e480] 264 - core 159 r2991 1771b55 - H.264/MPEG-4 AVC codec - Copyleft 2003-2019 - ​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=12 lookahead_threads=2 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 'test.mp4':
Metadata:
major_brand : mp42
minor_version : 1
compatible_brands: isommp41mp42
encoder : Lavf58.29.100
Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 480x848, q=-1--1, 30 fps, 15360 tbn, 30 tbc (default)
Metadata:
encoder : Lavc58.54.100 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)
Metadata:
creation_time : 2020-01-13T08:54:26.000000Z
handler_name : Core Media Audio
encoder : Lavc58.54.100 aac
Segmentation fault (core dumped)


  


• Preserving or syncing audio of original video to video fragments

  2 mai 2015, par Code_Ed_Student

  I currently have a few videos that I want to split into EXACTLY 30 seconds segments. I have been able to accomplish but the audio is not being properly preserve. Its out of sync. I tried playing arsample ab and other libraries but I am not getting the desired outuput. What would be the best way to both split the videos in exactly 30 second frames and preserve the audio ?

  ffmpeg -i $file -preset medium -map 0 -segment_time 30 -g 225 -r 25  -sc_threshold 0 -force_key_frames expr:gte(t,n_forced*30) -f segment -movflags faststart -vf scale=-1:720,format=yuv420p -vcodec libx264 -crf 20 -codec:a copy $dir/$video_file-%03d.mp4

  short snippet of output

  Input #0, flv, from '/media/sf_linux_sandbox/hashtag_pull/video-downloads/5b64d7ab-a669-4016-b55e-fe4720cbd843/5b64d7ab-a669-4016-b55e-fe4720cbd843.flv':
  
    Metadata:
  
      moovPosition    : 40
  
      avcprofile      : 77
  
      avclevel        : 31
  
      aacaot          : 2
  
      videoframerate  : 30
  
      audiochannels   : 2
  
      ©too           : Lavf56.15.102
  
      length          : 7334912
  
      sampletype      : mp4a
  
      timescale       : 48000
  
    Duration: 00:02:32.84, start: 0.000000, bitrate: 2690 kb/s
  
      Stream #0:0: Video: h264 (Main), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 30.30 fps, 29.97 tbr, 1k tbn, 59.94 tbc
  
      Stream #0:1: Audio: aac (LC), 48000 Hz, stereo, fltp
  
  [libx264 @ 0x3663ba0] using SAR=1/1
  
  [libx264 @ 0x3663ba0] using cpu capabilities: MMX2 SSE2Fast SSSE3 Cache64
  
  [libx264 @ 0x3663ba0] profile High, level 3.1
  
  [libx264 @ 0x3663ba0] 264 - core 144 r2 40bb568 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - 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=3 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=225 keyint_min=22 scenecut=0 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=20.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
  
  Output #0, segment, to '/media/sf_linux_sandbox/hashtag_pull/video-edits/30/5b64d7ab-a669-4016-b55e-fe4720cbd843/5b64d7ab-a669-4016-b55e-fe4720cbd843-%03d.mp4':
  
    Metadata:
  
      moovPosition    : 40
  
      avcprofile      : 77
  
      avclevel        : 31
  
      aacaot          : 2
  
      videoframerate  : 30
  
      audiochannels   : 2
  
      ©too           : Lavf56.15.102
  
      length          : 7334912
  
      sampletype      : mp4a
  
      timescale       : 48000
  
      encoder         : Lavf56.16.102
  
      Stream #0:0: Video: h264 (libx264), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], q=-1--1, 25 fps, 12800 tbn, 25 tbc
  
      Metadata:
  
        encoder         : Lavc56.19.100 libx264
  
      Stream #0:1: Audio: aac, 48000 Hz, stereo
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  
    Stream #0:1 -> #0:1 (copy)

• error : av_interleaved_write_frame() : Unknown error

  12 avril 2014, par John Qualis

  I am new to ffmpeg. I am trying to stream my webcam using ffmpeg (x264 encoding) on a windows machine to ffserver on a linux server and restream it. I am getting the following error : av_interleaved_write_frame() : Unknown error
  I checked about it on the net and came across mails which said it could be related to version mismatch between ffmpeg and ffserver. I made sure that all libraries that are used by ffmpeg and ffserver have the same version. I am still getting this error. Appreciate any help in solving this issue.

  I am using the following command :

   .\ffmpeg.exe -f dshow -i video="Webcam C170":audio="Microphone (3- Webcam C170)" -an -g 94 -vcodec libx264 -b:v 512k -r 30 -f flv http://AA.BB.CC.DD:8090/feed1.ffm

  I get the followoing errors -

    [dshow @ 0003f240] real-time buffer 101% full! frame dropped!
  
      Last message repeated 1 times
  
  No pixel format specified, yuv422p for H.264 encoding chosen.
  
  Use -pix_fmt yuv420p for compatibility with outdated media players.
  
  [libx264 @ 02563520] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
  
  [libx264 @ 02563520] profile High 4:2:2, level 3.0, 4:2:2 8-bit
  
  [libx264 @ 02563520] 264 - core 140 r2377 1ca7bb9 - H.264/MPEG-4 AVC codec - Copyleft
  
   2003-2013 - 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 chro
  
  ma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 thre
  
  ads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compa
  
  t=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 o
  
  pen_gop=0 weightp=2 keyint=94 keyint_min=9 scenecut=40 intra_refresh=0 rc_lookahead=4
  
  0 rc=abr mbtree=1 bitrate=512 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_rat
  
  io=1.40 aq=1:1.00
  
  Output #0, flv, to 'http://184.173.147.99:8090/feed1.ffm':
  
    Metadata:
  
      encoder         : Lavf55.22.100
  
      Stream #0:0: Video: h264 (libx264) ([7][0][0][0] / 0x0007), yuv422p, 640x480, q=-
  
  1--1, 512 kb/s, 1k tbn, 30 tbc
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (rawvideo -> libx264)
  
  Press [q] to stop, [?] for help
  
  frame=   59 fps=9.0 q=28.0 size=       3kB time=00:00:00.46 bitrate=  58.6kbits/s
  
  av_interleaved_write_frame(): Unknown error
  
  
  
  In my /etc/ffserver.conf I have the following settings -
  
  
  
  <feed>
  
  
  
  File /tmp/feed1.ffm
  
  ##File /mnt/vmtmpfs/feed1.ffm
  
  FileMaxSize 50M
  
  
  
  ACL allow 127.0.0.1
  
  ACL allow 0.0.0.0 255.255.255.255
  
  
  
  </feed>
  
  
  
  <stream>
  
          Format flv
  
          Feed feed1.ffm
  
  
  
          VideoCodec libx264
  
          VideoFrameRate 30
  
          VideoBitRate 512
  
          VideoSize 320x240
  
          AVOptionVideo crf 23
  
          AVOptionVideo preset medium
  
          # for more info on crf/preset options, type: x264 --help
  
          AVOptionVideo flags +global_header
  
          # NoAudio
  
  
  
          AudioCodec aac
  
          Strict -2
  
          AudioBitRate 128
  
          AudioChannels 2
  
          AudioSampleRate 44100
  
          AVOptionAudio flags +global_header
  
          ACL ALLOW 0.0.0.0 255.255.255.255
  
  </stream>