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• How to copy video duration to the output file with ffmpeg ? [closed]

  5 novembre 2024, par user28147375

  I want to copy the input's duration to the output. Is there even a way in ffmpeg to achieve this ?
There is nothing about this in the docs.

  


  I'm currently using these flags :

  


  const ffmpegProcess = cp.spawn(ffmpegPath, [
       '-i', `pipe:3`,
       '-i', `pipe:4`,
       '-map', '0:v:0',
       '-map', '1:a:0',
       '-c:v', 'copy',
       '-c:a', 'aac',
       '-crf', '27',
       '-pix_fmt', 'yuv420p',
       '-preset', 'veryfast',
       '-movflags', 'frag_keyframe+empty_moov',
       '-f', 'mp4',
       '-shortest',
        '-'
    ], {
        windowsHide: true,
        stdio: [
            'pipe', 'pipe', 'inherit', 'pipe', 'pipe'
        ],
    });


  


  The problem :

  


  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'pipe:3':
  Metadata:
    major_brand     : dash
    minor_version   : 0
    compatible_brands: iso6avc1mp41
    creation_time   : 2024-10-05T10:39:09.000000Z
  Duration: 00:02:18.14, start: 0.000000, bitrate: N/A
Stream #0:0[0x1](und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 1280x720 [SAR 1:1 DAR 16:9], 1 kb/s, 23.98 fps, 23.98 tbr, 24k tbn (default)


  


  Output #0, mp4, to 'pipe:':
  Metadata:
    major_brand     : dash
    minor_version   : 0
    compatible_brands: iso6avc1mp41
    encoder         : Lavf60.3.100
  ---> (DURATION MISSING) <---
Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 1280x720 [SAR 1:1 DAR 16:9], q=2-31, 1 kb/s, 23.98 fps, 23.98 tbr, 24k tbn (default)


  


• ffmpeg Error opening input : Server returned 401 Unauthorized (authorization failed) [closed]

  3 septembre 2024, par Dheeraj Reddy

  


  ffmpeg -protocol_whitelist file,http,https,tcp,tls,crypto -i "https://api.softwareschool.co/videos/cf/FI/U2FsdGVkX19gKSdUtJ5zwDrfADmw0z3P0gPIQt4xIN1woX0w3GZ%2FKfy19pIRUmkLdZXtFS%2FgiAYt4oNvFCplq65s1OJTpn5WyS7W06GI3wA%3D/about_courses/reactjs/1/about_react_1_.m3u8" -c:v libx264 -preset ultrafast -crf 25 out.mp4
ffmpeg version 2024-09-02-git-3f9ca51015-full_build-www.gyan.dev Copyright (c) 2000-2024 the FFmpeg developers
built with gcc 13.2.0 (Rev5, Built by MSYS2 project)
configuration : —enable-gpl —enable-version3 —enable-static —disable-w32threads —disable-autodetect —enable-fontconfig —enable-iconv —enable-gnutls —enable-libxml2 —enable-gmp —enable-bzlib —enable-lzma —enable-libsnappy —enable-zlib —enable-librist —enable-libsrt —enable-libssh —enable-libzmq —enable-avisynth —enable-libbluray —enable-libcaca —enable-sdl2 —enable-libaribb24 —enable-libaribcaption —enable-libdav1d —enable-libdavs2 —enable-libopenjpeg —enable-libquirc —enable-libuavs3d —enable-libxevd —enable-libzvbi —enable-libqrencode —enable-librav1e —enable-libsvtav1 —enable-libvvenc —enable-libwebp —enable-libx264 —enable-libx265 —enable-libxavs2 —enable-libxeve —enable-libxvid —enable-libaom —enable-libjxl —enable-libvpx —enable-mediafoundation —enable-libass —enable-frei0r —enable-libfreetype —enable-libfribidi —enable-libharfbuzz —enable-liblensfun —enable-libvidstab —enable-libvmaf —enable-libzimg —enable-amf —enable-cuda-llvm —enable-cuvid —enable-dxva2 —enable-d3d11va —enable-d3d12va —enable-ffnvcodec —enable-libvpl —enable-nvdec —enable-nvenc —enable-vaapi —enable-libshaderc —enable-vulkan —enable-libplacebo —enable-opencl —enable-libcdio —enable-libgme —enable-libmodplug —enable-libopenmpt —enable-libopencore-amrwb —enable-libmp3lame —enable-libshine —enable-libtheora —enable-libtwolame —enable-libvo-amrwbenc —enable-libcodec2 —enable-libilbc —enable-libgsm —enable-libopencore-amrnb —enable-libopus —enable-libspeex —enable-libvorbis —enable-ladspa —enable-libbs2b —enable-libflite —enable-libmysofa —enable-librubberband —enable-libsoxr —enable-chromaprint
libavutil 59. 35.100 / 59. 35.100
libavcodec 61. 11.100 / 61. 11.100
libavformat 61. 5.101 / 61. 5.101
libavdevice 61. 2.100 / 61. 2.100
libavfilter 10. 2.102 / 10. 2.102
libswscale 8. 2.100 / 8. 2.100
libswresample 5. 2.100 / 5. 2.100
libpostproc 58. 2.100 / 58. 2.100
[in#0 @ 000001597dfb26c0]
Error opening input : Server returned 401 Unauthorized (authorization failed)
Error opening input file https://api.softwareschool.co/videos/cf/FI/U2FsdGVkX19gKSdUtJ5zwDrfADmw0z3P0gPIQt4xIN1woX0w3GZ%2FKfy19pIRUmkLdZXtFS%2FgiAYt4oNvFCplq65s1OJTpn5WyS7W06GI3wA%3D/about_courses/reactjs/1/about_react_1_.m3u8.
Error opening input files : Server returned 401 Unauthorized (authorization failed)

  


  


  error screenshot

  


• ffmpeg -i desktop Output file does not contain any stream [closed]

  29 novembre 2024, par Antonio

  I'm trying to screen record a remote Windows VM machine which I'm accessing through ssh. I'm executing this command ffmpeg -f gdigrab -framerate 30 -i desktop -t 00:00:10 output.mp4 which is returning the following error :

  


  ffmpeg version 7.1-essentials_build-www.gyan.dev Copyright (c) 2000-2024 the FFmpeg developers
  built with gcc 14.2.0 (Rev1, Built by MSYS2 project)
  configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --en
able-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-zlib --enable-libsrt --enable-libss
h --enable-libzmq --enable-avisynth --enable-sdl2 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-lib
aom --enable-libopenjpeg --enable-libvpx --enable-mediafoundation --enable-libass --enable-libfreetype --enable-libfribidi --enabl
e-libharfbuzz --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-dxva2
--enable-d3d11va --enable-d3d12va --enable-ffnvcodec --enable-libvpl --enable-nvdec --enable-nvenc --enable-vaapi --enable-libgme
--enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libtheora --enable-libvo-amrwbenc --enable-libgsm --en
able-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-librubberband
  libavutil      59. 39.100 / 59. 39.100
  libavcodec     61. 19.100 / 61. 19.100
  libavformat    61.  7.100 / 61.  7.100
  libavdevice    61.  3.100 / 61.  3.100
  libavfilter    10.  4.100 / 10.  4.100
  libswscale      8.  3.100 /  8.  3.100
  libswresample   5.  3.100 /  5.  3.100
  libpostproc    58.  3.100 / 58.  3.100
[gdigrab @ 000001a87f3af600] Capturing whole desktop as 1024x768x32 at (0,0)
[gdigrab @ 000001a87f3af600] Failed to capture image (error 5)
[gdigrab @ 000001a87f3af600] Could not find codec parameters for stream 0 (Video: bmp, none, 754987 kb/s): unspecified size
Consider increasing the value for the 'analyzeduration' (0) and 'probesize' (5000000) options
Input #0, gdigrab, from 'desktop':
  Duration: N/A, bitrate: 754987 kb/s
  Stream #0:0: Video: bmp, none, 754987 kb/s, 30 fps, 1000k tbr, 1000k tbn
Output #0, mp4, to 'output.mp4':
[out#0/mp4 @ 000001a87f3aeec0] Output file does not contain any stream
Error opening output file output.mp4.
Error opening output files: Invalid argument


  


  If I take a remote desktop connection and use the same command, then it works perfectly.

  


  I've also tried running ffmpeg.exe -f lavfi -i color=c=black:s=800x600:r=30:d=60 out.mp4 which records something but it's just a black screen.

  


  Does anyone have any idea what could be happening ? I'm clueless at this point as I haven't been able to find more info online.