diff --git a/docs/tech_docs/python/MoviePy.md b/docs/tech_docs/python/MoviePy.md new file mode 100644 index 0000000..6787c55 --- /dev/null +++ b/docs/tech_docs/python/MoviePy.md @@ -0,0 +1,106 @@ +`MoviePy` is a versatile library for video editing that offers a broad range of features for processing and manipulating video files. It's designed to be accessible for beginners but powerful enough for advanced users, making it perfect for a wide array of video processing tasks, from editing and cutting to adding text, animations, and effects. + +### MoviePy Complete Guide + +#### Installation +To get started with MoviePy, you'll need to install it using pip. It might also require installing FFmpeg, which MoviePy uses for video processing under the hood. +```sh +pip install moviepy +``` +MoviePy will attempt to download FFmpeg on its first run if it's not already installed. + +### Basic Operations + +#### Reading and Writing Video +```python +from moviepy.editor import VideoFileClip + +# Load a video +clip = VideoFileClip("path/to/video.mp4") + +# Write the video to a new file (can also change the format) +clip.write_videofile("path/to/new_video.mp4") +``` + +### Editing Video + +#### Cutting and Trimming Video +```python +# Cut out the first 10 seconds of the video +cut_clip = clip.subclip(10, 20) +``` + +#### Concatenating Videos +```python +from moviepy.editor import concatenate_videoclips + +clip1 = VideoFileClip("path/to/video1.mp4") +clip2 = VideoFileClip("path/to/video2.mp4") + +# Combine the clips into one +final_clip = concatenate_videoclips([clip1, clip2]) +final_clip.write_videofile("path/to/combined_video.mp4") +``` + +#### Adding Text +```python +from moviepy.editor import TextClip, CompositeVideoClip + +# Create a text clip. You can specify the font, color, etc. +txt_clip = TextClip("My awesome video", fontsize=70, color='white') + +# Set the position of the text in the center and the duration to be 10 seconds +txt_clip = txt_clip.set_pos('center').set_duration(10) + +# Overlay the text clip on the first video clip +video = CompositeVideoClip([clip, txt_clip]) +video.write_videofile("path/to/video_with_text.mp4") +``` + +### Working with Audio + +#### Extracting Audio +```python +audio = clip.audio +audio.write_audiofile("path/to/extracted_audio.mp3") +``` + +#### Adding or Changing the Audio Track +```python +from moviepy.editor import AudioFileClip + +new_audio = AudioFileClip("path/to/new_audio.mp3") +video_with_new_audio = clip.set_audio(new_audio) +video_with_new_audio.write_videofile("path/to/video_with_new_audio.mp4") +``` + +### Advanced Features + +#### Adding Effects +MoviePy supports a variety of effects, such as fading in/out, mirroring, and even custom effects through lambda functions. + +```python +# Fade in the audio at the start of the video +fadein_audio_clip = clip.audio.fadein(3.0) # Fade in over 3 seconds +clip = clip.set_audio(fadein_audio_clip) +``` + +#### Working with Frames +You can manipulate the video at the frame level for custom effects or processing. + +```python +# Invert the colors of the video +def invert_colors(get_frame, t): + return 1 - get_frame(t) # Inverts the frame's color + +inverted_clip = clip.fl_image(invert_colors) +``` + +### Potential Use Cases + +- **Video Editing and Production**: Creating video content for social media, YouTube, or personal projects. +- **Automated Video Processing**: Automating tasks like resizing videos, converting formats, or extracting highlights. +- **Educational Content**: Generating educational videos with automated text overlays, annotations, or combining lecture recordings with slides. +- **Data Visualization**: Creating video visualizations from data, such as time-lapse videos of data changes over time. + +`MoviePy` simplifies complex video editing tasks into straightforward Python code, making it an invaluable tool for developers, content creators, and educators looking to manipulate video content programmatically. Its ability to handle a wide range of video editing tasks with ease opens up numerous possibilities for creative and automated video production. \ No newline at end of file