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• Bash script doesn't read entire line

  4 octobre 2019, par Miguel Alatorre

  First off, I am in the early stages of learning bash shell scripting, so I apologize if I say / do anything that doesn’t make sense.

  Currently, I’m trying to have an SBC, a Khadas VIM3 specifically, run a python script to find and label faces in any given video from a local server. Currently, I need to reduce the frame rate and resolution of the video, which is where the bash script comes into play. I need to automate this process and thought I’d do it using a bash script and crontab.
  The file paths are found and output into a file from a separate script, and are read by the bash script. The problem comes when I try and call ffmpeg to use the file paths.

  The Code :

  pathFile="/home/khadas/Documents/paths"
  
  
  
  while IFS= read -r line
  
  do
  
          ffmpeg -i "$line" -vf scale=960:540 -y "$line"
  
          cp "$line" ./
  
  done < $pathFile

  The resulting error :

  : No such file or directoryalRecognition/10/14-53.h264+/20-509-26-10-14-53.mp4
  
  cp: cannot stat '/home/khadas/Downloads/FacialRecognition/10/14-53.h264+/20-509-26-10-14-53.mp4'$'\r': No such file or directory

  Example of the paths file (There will be hundreds of entries) :

  /home/khadas/Downloads/FacialRecognition/10/14-42.h264+/20-509-26-10-14-42.mp4
  
  /home/khadas/Downloads/FacialRecognition/10/59-06.h264+/20-509-26-10-59-06.mp4
  
  /home/khadas/Downloads/FacialRecognition/10/36-28.h264+/20-509-26-10-36-28.mp4
  
  /home/khadas/Downloads/FacialRecognition/10/14-53.h264+/20-509-26-10-14-53.mp4

  When using a trimmed down version, the script works as expected. Could it be an issue with the length of the lines ? Any help is much appreciated.

• FFMPEG concat audio and videos produces only audio

  19 septembre 2019, par justaguytrynabuildawebsite

  Im trying to combine multiple video files with a single audio file. When using only videos without audio, it works fine but when adding a audio track to the beginning of the concat file i get the return below, and the output.mp4 becomes just audio with no video when previewing in browser.
  FFMPEG command

  ffmpeg -f concat -safe 0 -i /var/www/html/video_tool/edit/out/concat.txt -c copy -flags +global_header /var/www/html/video_tool/edit/out/output.mp4

  concat.txt

  #CONCAT FILE
  
  file '/var/www/html/video_tool/edit/audio/sound.mp3'
  
  file '/var/www/html/video_tool/edit/vids/frame_0.mp4'
  
  file '/var/www/html/video_tool/edit/vids/frame_1.mp4'
  
  file '/var/www/html/video_tool/edit/vids/frame_2.mp4'
  
  file '/var/www/html/video_tool/edit/vids/frame_3.mp4'

  Output

  ffmpeg version 4.1.3-0york1~16.04 Copyright (c) 2000-2019 the FFmpeg developers
  
    built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.11) 20160609
  
    configuration: --prefix=/usr --extra-version='0york1~16.04' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-nonfree --enable-libfdk-aac --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
  
    libavutil      56. 22.100 / 56. 22.100
  
    libavcodec     58. 35.100 / 58. 35.100
  
    libavformat    58. 20.100 / 58. 20.100
  
    libavdevice    58.  5.100 / 58.  5.100
  
    libavfilter     7. 40.101 /  7. 40.101
  
    libavresample   4.  0.  0 /  4.  0.  0
  
    libswscale      5.  3.100 /  5.  3.100
  
    libswresample   3.  3.100 /  3.  3.100
  
    libpostproc    55.  3.100 / 55.  3.100
  
  [mp3 @ 0x5635174e08c0] Estimating duration from bitrate, this may be inaccurate
  
  Input #0, concat, from '/var/www/html/video_tool/edit/out/concat.txt':
  
    Duration: N/A, start: 0.000000, bitrate: 192 kb/s
  
      Stream #0:0: Audio: mp3, 44100 Hz, stereo, fltp, 192 kb/s
  
  Output #0, mp4, to '/var/www/html/video_tool/edit/out/output.mp4':
  
    Metadata:
  
      encoder         : Lavf58.20.100
  
      Stream #0:0: Audio: mp3 (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 192 kb/s
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (copy)
  
  Press [q] to stop, [?] for help
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x5635174e38c0] Auto-inserting h264_mp4toannexb bitstream filter
  
  [mp4 @ 0x5635174e5080] Non-monotonous DTS in output stream 0:0; previous: 9897984, current: 8976; changing to 9897985. This may result in incorrect timestamps in the output file.
  
  [mp4 @ 0x5635174e5080] Non-monotonous DTS in output stream 0:0; previous: 9897985, current: 8977; changing to 9897986. This may result in incorrect timestamps in the output file.
  
  [mp4 @ 0x5635174e5080] Non-monotonous DTS in output stream 0:0; previous: 9897986, current: 8979; changing to 9897987. This may result in incorrect timestamps in the output file.
  
  [mp4 @ 0x5635174e5080] Non-monotonous DTS in output stream 0:0; previous: 9897987, current: 8980; changing to 9897988. This may result in incorrect timestamps in the output file.
  
  etc, etc...
  
  size=    5347kB time=00:03:44.44 bitrate= 195.1kbits/s speed=2.91e+03x    
  
  video:0kB audio:5311kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.664769%

• FFMPEG encrypted HLS single file is unplayable

  17 septembre 2019, par 3bodyZZ

  i use this command to generate the byterange segments

  ffmpeg -i test.mp4 -hls_time 20 -hls_flags single_file -hls_key_info_file key_info out.m3u8
  here is the output m3u8

  #EXTM3U
  
  #EXT-X-VERSION:4
  
  #EXT-X-TARGETDURATION:24
  
  #EXT-X-MEDIA-SEQUENCE:0
  
  #EXT-X-KEY:METHOD=AES-128,URI="key.bin"
  
  #EXTINF:23.933333,
  
  #EXT-X-BYTERANGE:1016328@0
  
  out.ts
  
  #EXTINF:19.200000,
  
  #EXT-X-BYTERANGE:824192@1016328
  
  out.ts
  
  #EXTINF:16.866667,
  
  #EXT-X-BYTERANGE:714024@1840520
  
  out.ts
  
  #EXT-X-ENDLIST

  and it does output incorrect byte range m3u8 file that is unplayable, i have tried the multiple segments and it works just fine but i need the single file, any one knows how to fix this ?

  here is the logs from ffmpeg

  ffmpeg version N-94167-ga514244319 Copyright (c) 2000-2019 the FFmpeg developers
  
    built with gcc 9.1.1 (GCC) 20190621
  
    configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt
  
    libavutil      56. 30.100 / 56. 30.100
  
    libavcodec     58. 53.101 / 58. 53.101
  
    libavformat    58. 28.101 / 58. 28.101
  
    libavdevice    58.  7.100 / 58.  7.100
  
    libavfilter     7. 56.100 /  7. 56.100
  
    libswscale      5.  4.101 /  5.  4.101
  
    libswresample   3.  4.100 /  3.  4.100
  
    libpostproc    55.  4.100 / 55.  4.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'ttt.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf56.40.101
  
    Duration: 00:01:00.16, start: 0.000000, bitrate: 227 kb/s
  
      Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p(tv, bt709), 480x320, 157 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
      Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 64 kb/s (default)
  
      Metadata:
  
        handler_name    : SoundHandler
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  
    Stream #0:1 -> #0:1 (aac (native) -> aac (native))
  
  Press [q] to stop, [?] for help
  
  [libx264 @ 000001df1e25dd80] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
  
  [libx264 @ 000001df1e25dd80] profile Progressive High, level 2.1, 4:2:0, 8-bit
  
  [libx264 @ 000001df1e25dd80] 264 - core 157 r2970 5493be8 - 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=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
  
  [hls @ 000001df1e25ac80] Opening 'key_info' for reading
  
  [hls @ 000001df1e25ac80] Opening 'key.bin' for reading
  
  [hls @ 000001df1e25ac80] Opening 'crypto:out.ts' for writing
  
  Output #0, hls, to 'out.m3u8':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf58.28.101
  
      Stream #0:0(und): Video: h264 (libx264), yuv420p, 480x320, q=-1--1, 30 fps, 90k tbn, 30 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
        encoder         : Lavc58.53.101 libx264
  
      Side data:
  
        cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
  
      Stream #0:1(und): Audio: aac (LC), 44100 Hz, stereo, fltp, 128 kb/s (default)
  
      Metadata:
  
        handler_name    : SoundHandler
  
        encoder         : Lavc58.53.101 aac
  
  [hls @ 000001df1e25ac80] Opening 'out.m3u8.tmp' for writinge=N/A speed=25.4x
  
  [hls @ 000001df1e25ac80] Opening 'out.m3u8.tmp' for writinge=N/A speed=23.8x
  
  [hls @ 000001df1e25ac80] Opening 'out.m3u8.tmp' for writinge=N/A speed=23.7x
  
  frame= 1800 fps=723 q=-1.0 Lsize=N/A time=00:01:00.11 bitrate=N/A speed=24.1x
  
  video:1196kB audio:947kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
  
  [libx264 @ 000001df1e25dd80] frame I:25    Avg QP:18.20  size: 18883
  
  [libx264 @ 000001df1e25dd80] frame P:524   Avg QP:21.64  size:  1174
  
  [libx264 @ 000001df1e25dd80] frame B:1251  Avg QP:30.70  size:   109
  
  [libx264 @ 000001df1e25dd80] consecutive B-frames:  4.2%  7.6%  5.8% 82.4%
  
  [libx264 @ 000001df1e25dd80] mb I  I16..4: 29.1%  8.6% 62.3%
  
  [libx264 @ 000001df1e25dd80] mb P  I16..4:  1.1%  0.8%  1.1%  P16..4: 14.6%  3.7%  2.2%  0.0%  0.0%    skip:76.5%
  
  [libx264 @ 000001df1e25dd80] mb B  I16..4:  0.0%  0.0%  0.1%  B16..8:  7.1%  0.5%  0.1%  direct: 0.2%  skip:92.0%  L0:47.1% L1:51.6% BI: 1.3%
  
  [libx264 @ 000001df1e25dd80] 8x8 transform intra:15.8% inter:36.0%
  
  [libx264 @ 000001df1e25dd80] coded y,uvDC,uvAC intra: 47.5% 75.5% 54.9% inter: 1.7% 4.4% 0.7%
  
  [libx264 @ 000001df1e25dd80] i16 v,h,dc,p: 48% 45%  5%  2%
  
  [libx264 @ 000001df1e25dd80] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 21% 20% 48%  2%  2%  1%  2%  2%  3%
  
  [libx264 @ 000001df1e25dd80] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 26% 27% 12%  7%  6%  5%  6%  5%  6%
  
  [libx264 @ 000001df1e25dd80] i8c dc,h,v,p: 34% 37% 21%  7%
  
  [libx264 @ 000001df1e25dd80] Weighted P-Frames: Y:0.0% UV:0.0%
  
  [libx264 @ 000001df1e25dd80] ref P L0: 83.5%  4.4%  9.5%  2.6%
  
  [libx264 @ 000001df1e25dd80] ref B L0: 90.1%  8.9%  1.0%
  
  [libx264 @ 000001df1e25dd80] ref B L1: 95.4%  4.6%
  
  [libx264 @ 000001df1e25dd80] kb/s:163.19
  
  [aac @ 000001df1e2138c0] Qavg: 357.178

  i have also tried different videos, and i have tried ffmpeg on windows and linux , i have tried compiling it myself and nothing seems to work the segments keeps repeating after reaching a certain point in the video