Recherche avancée

Sur d’autres sites (9496)

• Evolution #3179 : Pouvoir désactiver l’héritage de logo entre les rubriques (via une constante)

  13 mars 2014, par b b

  Ça me semble être une bonne idée, sans ça on est obligé de fourber à coup de :

  [(#LOGO_RUBRIQUE|matchrubon#ID_RUBRIQUE\.|oui)[(#LOGO_RUBRIQUE|image_reduire150,150)]]

  Reste à voir si le nom de la constante convient à tout le monde et hop commit :)

• audio issues when merging a video with an audio file using python ffmpeg and moviepy

  29 février 2024, par Stevenb123

  I’m trying to create a code that syncs between an audio file and a background file in terms of duration.
When creating the merged video I hear a cut or a loop sound of the last sentence for like 0.2 seconds.
I have tried to solve it in many different ways, listed below.

  


  Has anyone solved this issue ? I saw many people having a similar problem.
I’m using Ubuntu version 20.04 and ffmpeg version 4.2.7

  


  This is my code :

  


  def merge_videos_with_subs(
    background_path, audio_path, subs, output_directory, output_filename
):
    try:
        # Load background video and audio
        background_clip = VideoFileClip(background_path)
        background_clip = background_clip.without_audio()
        audio_clip = AudioFileClip(audio_path)

        # Adjust video duration to match audio duration
        audio_duration = audio_clip.duration

        # If the background video is longer, trim it to match the audio duration
        if background_clip.duration > audio_duration:
            background_clip = background_clip.subclip(0, audio_duration)
        # If the audio is longer, loop the background video
        else:
            background_clip = background_clip.loop(duration=audio_duration)

        # Set audio of the background clip
        background_clip = background_clip.set_audio(audio_clip)

        # Overlay subtitles on the video
        final_clip = CompositeVideoClip(
            [background_clip, subtitles.set_pos(("center", "bottom"))]
        )

        # Ensure the output directory exists
        os.makedirs(output_directory, exist_ok=True)

        # Define the output path
        output_path = os.path.join(output_directory, output_filename)

        # Write the merged video with subtitles
        final_clip.write_videofile(
            output_path, codec="libx264", audio_codec="aac", threads=4, fps=24
        )

        # Close the clips
        final_clip.close()
        background_clip.close()
        audio_clip.close()

        print(f"Merged video with subtitles saved to: {output_path}")
    except Exception as e:
        print(f"Error merging videos: {e}")


  


  I’ve tried changing the codec, tried cutting 0.2 seconds of the audio before and after the merge or silencing it, nothing seems to help.
  
When I run my code without the background subclip to match the audio it worked flawlessy.
If I let the background run until its full duration or make it loop there were no audio issues.
  
Looks like the issue is on the cutting part.

  


• How to merge two audio files while retaining correct timings with ffmpeg

  31 août 2017, par andy

  Disclaimer : I don’t understand ffmpeg and mostly just copy commands

  I have two webm video files. Their duration is off by about a second.

  I converted these to mp4 and everything was fine :

  ffmpeg -acodec libopus -i 1.webm -r 10 -cpu-used 5 -c:v libx264 -crf 20 -c:a aac -strict experimental -loglevel error 1.mp4

  I then extracted the audio from each video and everything was fine. By fine, I mean, when I playback the audio files by themselves they match the timings on the original video. I used this command to extract the audio :

  fmpeg -i 1.mp4 -map 0:a -vn -acodec copy 1audio.m4a

  I now have two audio tracks and I want to combine them into one, I want to "overlay" them, AND I want to keep the timings the same as they were.

  BUT, whenever I try and combine the audio the timings are off. The "seconds" don’t match the original single audio files.

  I have tried these commands to merge the audio :

  ffmpeg -i 1audio.m4a -i 2audio.m4a -filter_complex "[0:a][1:a]amerge=inputs=2[a]" -map [a] -c:a libfdk_aac mergedaudio.m4a

  ffmpeg -i 2audio.m4a -i 1audio.m4a -filter_complex amix=inputs=2:duration=first mergedaudio.m4a

  ffmpeg -i 1audio.m4a -i 2audio.m4a -filter_complex amerge -ac 2 -c:a libfdk_aac -vbr 4 mergedaudio.m4a

  All the above command have resulted in a merged audio file... but the timings are off.

  What am I doing wrong ?