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• Ffmpeg , overlay two sequences of png's and turn them into a movie

  12 mai 2014, par Lau Llobet

  i’ve found how to turn a png sequence into a movie, also i’ve found how to overlay two movies using transparency but I don’t know how to do both things at once (using png’s tranparency).

  The bottom layer of png’s is smaller than the top one and needs to be stretched to a certain resolution and also have a padding to be centered.

  The output dont have to have alpha (black for alpha is ok).

  I’m a bit confused by the abundance of filter options

  ---

  Edit :

  for the moment i’ve found :

  ./ffmpeg -i ./seq1/%d.bmp -vf "movie=./%d.png [a]; [in][a] overlay=0:366" combined.m2v

  it works , now i’ve got to find the padding and resize things

  ---

  thank you in advance.

• MoviePy Is Able To Print Video Duration But When Performing Edit It Cannot Find Duration ? | Python

  10 avril 2021, par PythonProgrammer

  I have been troubled by this issue when I am making a video downloader.
The Code Below :

  


      videoclip = VideoFileClip(fr'{directory}\audio\{yt.title}.mp4')

    duration = videoclip.duration

    print(duration)

    audioclip = videoclip.audio
    audioclip.write_audiofile(fr"{directory}\{yt.title}.mp3")
    audioclip.close()
    videoclip.close()


  


  Output :

  


  145
MoviePy error: failed to read the duration of file C:\Users\achut\Desktop\Movies\audio\Winning With Half A Heart | Minecraft Skywars.mp4.
Here are the file infos returned by ffmpeg:

ffmpeg version 4.2.2 Copyright (c) 2000-2019 the FFmpeg developers
  built with gcc 9.2.1 (GCC) 20200122
  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. 31.100 / 56. 31.100
  libavcodec     58. 54.100 / 58. 54.100
  libavformat    58. 29.100 / 58. 29.100
  libavdevice    58.  8.100 / 58.  8.100
  libavfilter     7. 57.100 /  7. 57.100
  libswscale      5.  5.100 /  5.  5.100
  libswresample   3.  5.100 /  3.  5.100
  libpostproc    55.  5.100 / 55.  5.100
C:\Users\achut\Desktop\Movies\audio\Winning With Half A Heart | Minecraft Skywars.mp4: Invalid argument


  


  For some odd reason it is able to print the video duration but apparently cannot find it when I am trying to save the audio from the video as a separate file.

  


  Thanks for the help ! I am using latest version of moviepy and its dependencies, I just installed it today.

  


• how to add multi vf filter on one command ffmpeg scale resize and watermark text [closed]

  7 août 2024, par Ibrahim Noshy

  can you help me

  


  i need scale video to 720p and add watermark

  


  i tray this put not work

  


  
-filter:v scale=-1:720 -c:v libx264 -preset medium -crf 28 -b:v 1.5M -pix_fmt yuv420p10le -vf "drawtext=text='✠ Orsozox Movies ✠':x=w-tw-10:y=10:fontsize=24:fontcolor=white:shadowcolor=black:shadowx=5:shadowy=5" -c:a aac -b:a 128k


  


  I also face a problem sometimes it works but I face a problem with the stream when uploading to Telegram on some mobile devices the video does not work on them

  


  can you help me

  


  to fined best code