Question

这是python脚本。

from moviepy.editor import *
videoclip = VideoFileClip("1_0_1522314608.m4v")
audioclip = AudioFileClip("jam_1_Mix.mp3")

new_audioclip = CompositeAudioClip([videoclip.audio, audioclip])
videoclip.audio = new_audioclip
videoclip.write_videofile("new_filename.mp4")

然后返回

[MoviePy]＆gt;＆gt;＆gt;＆gt;构建视频new_filename.mp4 [MoviePy]编写音频在new_filenameTEMP_MPY_wvf_snd.mp3中 100％|████████████████████████████████████████| 795/795 [00：01＆lt; 00：00， 466.23it / s] [MoviePy]完成。 [MoviePy]写视频new_filename.mp4 100％|███████████████████████████████████████ | 1072/1072 [01：26＆lt; 00：00， 10.31it / s] [MoviePy]完成。 [MoviePy]＆gt;＆gt;＆gt;＆gt;视频就绪：new_filename.mp4

1_0_1522314608.m4v和jam_1_Mix.mp3他们都有声音。

但是新文件new_filename.mp4没有声音。

我做错了吗？请帮忙。谢谢。

Answer 1

I had similar issues. I found that sometimes the audio is in fact present, but will not be played by all players. (Quicktime does not work, but VLC does). I finally use something like :

    video_clip.set_audio(composite_audio).write_videofile(
        composite_file_path,
        fps=None,
        codec="libx264",
        audio_codec="aac",
        bitrate=None,
        audio=True,
        audio_fps=44100,
        preset='medium',
        audio_nbytes=4,
        audio_bitrate=None,
        audio_bufsize=2000,
        # temp_audiofile="/tmp/temp.m4a",
        # remove_temp=False,
        # write_logfile=True,
        rewrite_audio=True,
        verbose=True,
        threads=None,
        ffmpeg_params=None,
        progress_bar=True)

A few remarks :

aac seems to work better for quicktime than mp3.
logfile file generation helps to diagnose what is happening behind the scenes
temp_audiofile can be tested on its own
set_audio() returns a new clip and leave the object on which it is called unchanged

Setting the audio clip duration to match the video helps :

composite_audio = composite_audio.subclip(0, video_clip.duration)
composite_audio.set_duration(video_clip.duration)

为什么我在python moviepy中使用CompositeAudioClip时没有声音？

1 个答案: