使用Moviepy输出字幕主要涉及导入必要的模块、加载视频、创建字幕剪辑、设置字幕属性、合成视频并输出。以下是具体步骤和示例代码： ### 1. 导入必要的模块 ```python from moviepy.editor import VideoFileClip, TextClip, CompositeVideoClip ``` ### 2. 加载视频 ```python src_mp4 = r'myvideo.mp4' video = VideoFileClip(src_mp4) ``` ### 3. 创建字幕剪辑 可以逐句或逐词创建字幕剪辑。以下是逐句创建字幕的示例： ```python sentences = [('moviepy,如何给视频添加字幕', 0, 3), ('设定字幕开始时间', 4, 2), ('结束时间', 7, 2)] txts = [] for sentence, start, span in sentences: txt = (TextClip(sentence, fontsize=60, font='SimHei', size=(1900, 70), align='center', color='white') .set_position(('bottom', 'center')) .set_duration(span).set_start(start)) txts.append(txt) ``` ### 4. 合成视频并输出 ```python dst_mp4 = r'new_myvideo.mp4' video = CompositeVideoClip([video, *txts]) video.write_videofile(dst_mp4) ``` 完整代码如下： ```python from moviepy.editor import * src_mp4 = r'myvideo.mp4' dst_mp4 = r'new_myvideo.mp4' video = VideoFileClip(src_mp4) sentences = [('moviepy,如何给视频添加字幕', 0, 3), ('设定字幕开始时间', 4, 2), ('结束时间', 7, 2)] txts = [] for sentence, start, span in sentences: txt = (TextClip(sentence, fontsize=60, font='SimHei', size=(1900, 70), align='center', color='white') .set_position(('bottom', 'center')) .set_duration(span).set_start(start)) txts.append(txt) video = CompositeVideoClip([video, *txts]) video.write_videofile(dst_mp4) ``` ### 另一个示例代码 ```python # -*-coding:utf-8-*- # date:2024-12 # Author: DataBall - XIAN # Function：在视频上添加英文字幕：视频字幕合成 import os from moviepy.editor import VideoFileClip, TextClip, CompositeVideoClip video = VideoFileClip("input/test.mp4") duration = video.duration print(f"视频时长为：{duration}秒") video_width = video.w sub_clips = [] text_list = "DataBall - X" text = text_list print("{}".format(text)) txt_clip = TextClip(text, fontsize=120, color='Green', font="Arial-Bold", size=(video_width, None), method="caption") txt_clip = txt_clip.set_position('center').set_duration(duration) txt_clip = txt_clip.set_start(0) sub_clips.append(txt_clip) final_video = CompositeVideoClip([video, *sub_clips]) final_video.write_videofile("output/out.mp4", codec="libx264", audio_codec="aac") ``` ### 代码解释 - `VideoFileClip`：用于加载视频文件。 - `TextClip`：用于创建字幕剪辑，可以设置字幕的内容、字体、大小、颜色等属性。 - `CompositeVideoClip`：用于将视频和字幕剪辑合成一个新的视频。 - `write_videofile`：用于将合成后的视频保存到指定的文件中。