Recherche avancée

Sur d’autres sites (8996)

• Moviepy is unable to load video

  20 octobre 2024, par Alex

  Using python 3.11.10 and moviepy 1.0.3 on ubuntu 24.04.1 (in a VirtualBox 7.1.3 on windows 10) I have problems to load a video clip. The test code is just

  


  from moviepy.editor import VideoFileClip
clip = VideoFileClip("testvideo.ts")


  


  but the error is

  


  Traceback (most recent call last):&#xA;  File "/home/alex/.cache/pypoetry/virtualenvs/pypdzug-WqasAXAr-py3.11/lib/python3.11/site-packages/moviepy/video/io/ffmpeg_reader.py", line 285, in ffmpeg_parse_infos&#xA;    line = [l for l in lines if keyword in l][index]&#xA;           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^&#xA;IndexError: list index out of range&#xA;&#xA;During handling of the above exception, another exception occurred:&#xA;&#xA;Traceback (most recent call last):&#xA;  File "/home/alex/Repos/pypdzug/tester.py", line 5, in <module>&#xA;    clip = VideoFileClip("testvideo.ts")&#xA;           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^&#xA;  File "/home/alex/.cache/pypoetry/virtualenvs/pypdzug-WqasAXAr-py3.11/lib/python3.11/site-packages/moviepy/video/io/VideoFileClip.py", line 88, in __init__&#xA;    self.reader = FFMPEG_VideoReader(filename, pix_fmt=pix_fmt,&#xA;                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^&#xA;  File "/home/alex/.cache/pypoetry/virtualenvs/pypdzug-WqasAXAr-py3.11/lib/python3.11/site-packages/moviepy/video/io/ffmpeg_reader.py", line 35, in __init__&#xA;    infos = ffmpeg_parse_infos(filename, print_infos, check_duration,&#xA;            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^&#xA;  File "/home/alex/.cache/pypoetry/virtualenvs/pypdzug-WqasAXAr-py3.11/lib/python3.11/site-packages/moviepy/video/io/ffmpeg_reader.py", line 289, in ffmpeg_parse_infos&#xA;    raise IOError(("MoviePy error: failed to read the duration of file %s.\n"&#xA;OSError: MoviePy error: failed to read the duration of file testvideo.ts.&#xA;Here are the file infos returned by ffmpeg:&#xA;&#xA;ffmpeg version 4.2.2-static https://johnvansickle.com/ffmpeg/  Copyright (c) 2000-2019 the FFmpeg developers&#xA;  built with gcc 8 (Debian 8.3.0-6)&#xA;  configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gmp --enable-libgme --enable-gray --enable-libaom --enable-libfribidi --enable-libass --enable-libvmaf --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libdav1d --enable-libxvid --enable-libzvbi --enable-libzimg&#xA;  libavutil      56. 31.100 / 56. 31.100&#xA;  libavcodec     58. 54.100 / 58. 54.100&#xA;  libavformat    58. 29.100 / 58. 29.100&#xA;  libavdevice    58.  8.100 / 58.  8.100&#xA;  libavfilter     7. 57.100 /  7. 57.100&#xA;  libswscale      5.  5.100 /  5.  5.100&#xA;  libswresample   3.  5.100 /  3.  5.100&#xA;  libpostproc    55.  5.100 / 55.  5.100&#xA;</module>

  


  It says it failed to read the duration of the file, but the file plays properly (with mplayer) and ffmpeg -i testvideo.ts returns

  


  ffmpeg version 6.1.1-3ubuntu5 Copyright (c) 2000-2023 the FFmpeg developers
  built with gcc 13 (Ubuntu 13.2.0-23ubuntu3)
  configuration: --prefix=/usr --extra-version=3ubuntu5 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --disable-omx --enable-gnutls --enable-libaom --enable-libass --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libdav1d --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libglslang --enable-libgme --enable-libgsm --enable-libharfbuzz --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzimg --enable-openal --enable-opencl --enable-opengl --disable-sndio --enable-libvpl --disable-libmfx --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-ladspa --enable-libbluray --enable-libjack --enable-libpulse --enable-librabbitmq --enable-librist --enable-libsrt --enable-libssh --enable-libsvtav1 --enable-libx264 --enable-libzmq --enable-libzvbi --enable-lv2 --enable-sdl2 --enable-libplacebo --enable-librav1e --enable-pocketsphinx --enable-librsvg --enable-libjxl --enable-shared
  libavutil      58. 29.100 / 58. 29.100
  libavcodec     60. 31.102 / 60. 31.102
  libavformat    60. 16.100 / 60. 16.100
  libavdevice    60.  3.100 / 60.  3.100
  libavfilter     9. 12.100 /  9. 12.100
  libswscale      7.  5.100 /  7.  5.100
  libswresample   4. 12.100 /  4. 12.100
  libpostproc    57.  3.100 / 57.  3.100
Input #0, mpegts, from 'testvideo.ts':
  Duration: 00:10:10.13, start: 0.133333, bitrate: 3256 kb/s
  Program 1 
    Metadata:
      service_name    : 2024-10-04 11:49:49.917
      service_provider: gvos-6.0
  Stream #0:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(progressive), 1920x1080, 15 fps, 15 tbr, 90k tbn


  


  Here the duration is clearly given to be 10 minutes and 10.13 seconds. So what could be the cause of this error/issue ?

  


• FFMPEG : how to determine which filters are supported by specific hardware acceleration contexts ?

  7 juin 2020, par John Allard

  I'm having trouble figuring out precisely which filter graph operations are supported by each of the available hardware acceleration methods. I know, for example, that almost all of these methods perform simple operations like scaling, but what about more complicated ffmpeg filters like the new v360 filter or the mestimate filter ?

  



  There's this page (https://trac.ffmpeg.org/wiki/HWAccelIntro) that everyone finds when researching hardware accel with ffmpeg but it mostly touched on encoding and decoding and not filtering.

  


• How to join 2 audio files into one using either ffmpeg or eac3to ?

  18 janvier 2017, par user3108268

  Not merge or mux into each other, because this is what I found so far, but take 2 .mp3 files e.g. 1 hour long each and join them and it becomes 1 .mp3 file with total of 2 hour long ?

  I did this :

  ffmpeg -i audio.mp3 -i 1.mp3  -filter_complex amerge -c:a libmp3lame -q:a 4 audiofinal.mp3

  But I think it encode both files into each other or something.

  And there’s nothing about this at https://en.wikibooks.org/wiki/Eac3to/How_to_Use

  I’d like to prefer command line solution and not Audacity or mp3DirectCut.

  edit : i tried eac3to m1.mp3+m2.mp3 1.mp3 but it doesn’t join them, output audio is the length of first file.