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• Suppress output of ffmpeg in bash [duplicate]

  24 février 2021, par Arghadip

  I'm writing a script which can take screenshots from videos, and I've used ffmpeg and mplayer. But both of them outputing too much information, I want to suppress everything, how can I do it ? I'm running macOS Bigsur.

  


  Command

  


  ffmpeg -ss 00:30:00 -i hello.mp4 -vframes 1 -q:v 2 hello.jpg


  


  Output

  


  ffmpeg version 4.3.2 Copyright (c) 2000-2021 the FFmpeg developers
  built with Apple clang version 12.0.0 (clang-1200.0.32.29)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/4.3.2 --enable-shared --enable-pthreads --enable-version3 --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libdav1d --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox
  libavutil      56. 51.100 / 56. 51.100
  libavcodec     58. 91.100 / 58. 91.100
  libavformat    58. 45.100 / 58. 45.100
  libavdevice    58. 10.100 / 58. 10.100
  libavfilter     7. 85.100 /  7. 85.100
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  7.100 /  5.  7.100
  libswresample   3.  7.100 /  3.  7.100
  libpostproc    55.  7.100 / 55.  7.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'films/53f860.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.65.100
  Duration: 01:37:06.15, start: 0.000000, bitrate: 2383 kb/s
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709/bt709/unknown), 1920x1072 [SAR 1:1 DAR 120:67], 2249 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)
    Metadata:
      handler_name    : VideoHandler
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> mjpeg (native))
Press [q] to stop, [?] for help
[swscaler @ 0x7fdf43aa1000] deprecated pixel format used, make sure you did set range correctly
Output #0, image2, to 'output.jpg':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.45.100
    Stream #0:0(und): Video: mjpeg, yuvj420p(pc), 1920x1072 [SAR 1:1 DAR 120:67], q=2-31, 200 kb/s, 23.98 fps, 23.98 tbn, 23.98 tbc (default)
    Metadata:
      handler_name    : VideoHandler
      encoder         : Lavc58.91.100 mjpeg
    Side data:
      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: N/A
frame=    1 fps=0.0 q=2.0 Lsize=N/A time=00:00:00.04 bitrate=N/A speed=0.316x    
video:154kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown


  


• FFMPEG not concatenating webm videos on centos | Only VP8 or VP9 video and Vorbis or Opus audio and WebVTT subtitles are supported for WebM

  28 février 2019, par Saurabh Sharma

  I’m trying to concat multiple .webm videos into single video using ffmpeg on centos 7 server. I have txt file like :
  video.txt

  file upload_0d62886ccceb71117f93e08f6ce40ed4.webm
  
  file upload_0dc5935ea564aa105484b17cf0eae2cb.webm
  
  file upload_0dc89839a1cb1d1cb84649c966b03f9b.webm
  
  file upload_eefa16438205bcead017145b7d15ec58.webm

  I’m using below command for concat :

  ffmpeg -f concat -safe 0 -i video.txt -c copy output.webm

  Then I got the following output

  ffmpeg version 2.8.15 Copyright (c) 2000-2018 the FFmpeg developers
  
  built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-28)
  
  configuration: --prefix=/usr --bindir=/usr/bin --datadir=/usr/share/ffmpeg - 
  
  -incdir=/usr/include/ffmpeg --libdir=/usr/lib64 --mandir=/usr/share/man -- 
  
  arch=x86_64 --optflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 - 
  
  fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc- 
  
  switches -m64 -mtune=generic' --extra-ldflags='-Wl,-z,relro ' --enable- 
  
  libopencore-amrnb --enable-libopencore-amrwb --enable-libvo-amrwbenc -- 
  
  enable-version3 --enable-bzlib --disable-crystalhd --enable-gnutls --enable- 
  
  ladspa --enable-libass --enable-libcdio --enable-libdc1394 --disable- 
  
  indev=jack --enable-libfreetype --enable-libgsm --enable-libmp3lame -- 
  
  enable-openal --enable-libopenjpeg --enable-libopus --enable-libpulse -- 
  
  enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora 
  
  --enable-libvorbis --enable-libv4l2 --enable-libx264 --enable-libx265 -- 
  
  enable-libxvid --enable-x11grab --enable-avfilter --enable-avresample -- 
  
  enable-postproc --enable-pthreads --disable-static --enable-shared --enable- 
  
  gpl --disable-debug --disable-stripping --shlibdir=/usr/lib64 --enable- 
  
  runtime-cpudetect
  
  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

  Input #0, concat, from ’video.txt’ :
  Duration : N/A, start : 0.000000, bitrate : N/A
  Stream #0:0(eng) : Audio : opus, 48000 Hz, mono, fltp
  Stream #0:1(eng) : Video : h264 (Constrained Baseline), yuv420p, 640x480, SAR
  1:1 DAR 4:3, 30.30 fps, 30 tbr, 1k tbn, 60 tbc
  [webm @ 0x708120] Codec for stream 0 does not use global headers but
  container format requires global headers
  [webm @ 0x708120] Codec for stream 1 does not use global headers but
  container format requires global headers
  [webm @ 0x708120] Only VP8 or VP9 video and Vorbis or Opus audio and WebVTT
  subtitles are supported for WebM.
  Output #0, webm, to ’output.webm’ :
  Metadata :
  encoder : Lavf56.40.101
  Stream #0:0(eng) : Video : h264, yuv420p, 640x480 [SAR 1:1 DAR 4:3], q=2-31, 30.30 fps, 30 tbr, 1k tbn, 1k tbc
  Stream #0:1(eng) : Audio : opus, 48000 Hz, mono
  Stream mapping :
  Stream #0:1 -> #0:0 (copy)
  Stream #0:0 -> #0:1 (copy)
  Could not write header for output file #0 (incorrect codec parameters ?) :
  Invalid argument

• No such file or directory : 'ffprobe' : 'ffprobe'

  27 novembre 2023, par Jack McCumber

  I'm hoping someone can point me in the right direction. I'm currently trying to build a python GUI that plays clips of sounds from a specified file and allows the user to annotate it. All the research I've done has pointed my to using pydub. I'm using the following snippet :

  


  from pydub import AudioSegment
from pydub.playback import play

song = AudioSegment.from_wav("beepboop.mp3")
play(song)


  


  However, I'm currently getting the following error :

  


  Warning (from warnings module):&#xA;  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pydub/utils.py", line 170&#xA;    warn("Couldn&#x27;t find ffmpeg or avconv - defaulting to ffmpeg, but may not work", RuntimeWarning)&#xA;RuntimeWarning: Couldn&#x27;t find ffmpeg or avconv - defaulting to ffmpeg, but may not work&#xA;&#xA;Warning (from warnings module):&#xA;  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pydub/utils.py", line 198&#xA;    warn("Couldn&#x27;t find ffprobe or avprobe - defaulting to ffprobe, but may not work", RuntimeWarning)&#xA;RuntimeWarning: Couldn&#x27;t find ffprobe or avprobe - defaulting to ffprobe, but may not work&#xA;Traceback (most recent call last):&#xA;  File "/Users/jack/Desktop/code-repo/convert-csv-to-json/cleaner.py", line 7, in <module>&#xA;    song = AudioSegment.from_wav("beepboop.mp3")&#xA;  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pydub/audio_segment.py", line 808, in from_wav&#xA;    return cls.from_file(file, &#x27;wav&#x27;, parameters=parameters)&#xA;  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pydub/audio_segment.py", line 728, in from_file&#xA;    info = mediainfo_json(orig_file, read_ahead_limit=read_ahead_limit)&#xA;  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pydub/utils.py", line 274, in mediainfo_json&#xA;    res = Popen(command, stdin=stdin_parameter, stdout=PIPE, stderr=PIPE)&#xA;  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/subprocess.py", line 775, in __init__&#xA;    restore_signals, start_new_session)&#xA;  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/subprocess.py", line 1522, in _execute_child&#xA;    raise child_exception_type(errno_num, err_msg, err_filename)&#xA;FileNotFoundError: [Errno 2] No such file or directory: &#x27;ffprobe&#x27;: &#x27;ffprobe&#x27;&#xA;</module>

  


  I've downloaded both ffprobe and ffmpeg from the official website, extracted the files, and installed to usr/local/bin based on input I've read in other StackOverflow comments. When I run :

  


  print(os.environ['PATH'])


  


  I get :

  


  /usr/bin:/bin:/usr/sbin:/sbin


  


  Also, MacOSX won't let me manually drag the executable into /usr/bin or /usr/sbin. Nor will it let me copy it into the directory using :

  


  $ sudo cp ffmpeg /usr/bin


  


  When I use :

  


  pip3 install ffprobe-python


  


  I get :

  


  Requirement already satisfied: ffprobe-python in /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages (1.0.3)


  


  I'll add that when I try and use the "apt install" method, it barks at me and says my version of MacOSX isn't supported.