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• 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.

  


• 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 :)

• Video is cut after adding 2 watermarks with FFMPEG-KIT [closed]

  7 août 2023, par dfjick

  I made a FFMPEG-KIT command to add 2 PNG watermarks to the video and everything went smoothly.

  


  String ffmpegCommand = "-y -i " + videoPath +
            " -i " + watermarkImagePath +
            " -i " + userID +
            " -filter_complex " +
            "\"[0:v][1:v]overlay=x='if(lt(mod(t,10),5),10,W-w-10)':y='if(lt(mod(t,10),5),10,H-h-35)',\"" +
            "\"overlay=x='if(lt(mod(t,10),5),7,W-w-7)':y='if(lt(mod(t,10),5),165,H-h-15)'[out]\"" +
            " -map [out] -map 0:a -c:v libx264 -crf 18 -preset slow -c:a aac " + outputPath;


  


  But for videos that are longer than 20 seconds, the results don't match the original video, sometimes the videos are only <20 seconds and at random times.

  &#xA;

  I get this error, how do I fix it ?

  &#xA;

  W/ffmpeg-kit: [mov,mp4,m4a,3gp,3g2,mj2 @ 0xb400007c5c1243f0] Packet corrupt (stream = 1, dts = 366976)
W/ffmpeg-kit: [mov,mp4,m4a,3gp,3g2,mj2 @ 0xb400007c5c1243f0] .
E/ffmpeg-kit: [NULL @ 0xb400007c6c179400] Invalid NAL unit size (63547 > 20190).
E/ffmpeg-kit: [NULL @ 0xb400007c6c179400] missing picture in access unit with size 20194
W/ffmpeg-kit: /storage/emulated/0/DCIM/android_100394_20230807_162805_5465009.mp4: corrupt input packet in stream 1
E/ffmpeg-kit: [h264 @ 0xb400007c6c210750] Invalid NAL unit size (63547 > 20190).
E/ffmpeg-kit: [h264 @ 0xb400007c6c210750] Error splitting the input into NAL units.
E/ffmpeg-kit: Error while decoding stream #0:1: Invalid data found when processing input


  &#xA;

  I've tried to use this -fflags +discardcorrupt, but the result is still the same. The duration of the video that has been watermarked does not match the original video.

  &#xA;