add joining video files tutorial

Author: x4nth055

README.md

@@ -96,6 +96,7 @@ This is a repository of all the tutorials of [The Python Code](https://www.thepy
 -[How to Create a Watchdog in Python](https://www.thepythoncode.com/article/create-a-watchdog-in-python). ([code](general/directory-watcher))
 -[How to Extract Audio from Video in Python](https://www.thepythoncode.com/article/extract-audio-from-video-in-python). ([code](general/video-to-audio-converter))
 -[How to Combine a Static Image with Audio in Python](https://www.thepythoncode.com/article/add-static-image-to-audio-in-python). ([code](python-for-multimedia/add-photo-to-audio))
+-[How to Concatenate Video Files in Python](https://www.thepythoncode.com/article/concatenate-video-files-in-python). ([code](python-for-multimedia/combine-video))
 
 
 -### [Web Scraping](https://www.thepythoncode.com/topic/web-scraping)

python-for-multimedia/combine-video/README.md

@@ -0,0 +1,26 @@
+# [How to Concatenate Video Files in Python](https://www.thepythoncode.com/article/concatenate-video-files-in-python)
+To run this:
+-`pip3 install -r requirements.txt`
+- 
+```
+ $ python concatenate_video.py --help
+```
+**Output**:
+```
+ usage: concatenate_video.py [-h] [-c CLIPS [CLIPS ...]] [-r REDUCE] [-o OUTPUT]
+
+ Simple Video Concatenation script in Python with MoviePy Library
+
+ optional arguments:
+ -h, --help show this help message and exit
+ -c CLIPS [CLIPS ...], --clips CLIPS [CLIPS ...]
+ List of audio or video clip paths
+ -r REDUCE, --reduce REDUCE
+ Whether to use the `reduce` method to reduce to the lowest quality on the resulting clip
+ -o OUTPUT, --output OUTPUT
+ Output file name
+```
+- To combine `zoo.mp4` and `directed-by-robert.mp4` to produce `output.mp4`:
+```
+ $ python concatenate_video.py -c zoo.mp4 directed-by-robert.mp4 -o output.mp4
+```

python-for-multimedia/combine-video/concatenate_video.py

@@ -0,0 +1,41 @@
+frommoviepy.editorimportconcatenate_videoclips, VideoFileClip
+
+
+defconcatenate(video_clip_paths, output_path, method="compose"):
+"""Concatenates several video files into one video file
+ and save it to `output_path`. Note that extension (mp4, etc.) must be added to `output_path`
+ `method` can be either 'compose' or 'reduce':
+ `reduce`: Reduce the quality of the video to the lowest quality on the list of `video_clip_paths`.
+ `compose`: type help(concatenate_videoclips) for the info"""
+# create VideoFileClip object for each video file
+clips= [VideoFileClip(c) forcinvideo_clip_paths]
+ifmethod=="reduce":
+# calculate minimum width & height across all clips
+min_height=min([c.hforcinclips])
+min_width=min([c.wforcinclips])
+# resize the videos to the minimum
+clips= [c.resize(newsize=(min_width, min_height)) forcinclips]
+# concatenate the final video
+final_clip=concatenate_videoclips(clips)
+elifmethod=="compose":
+# concatenate the final video with the compose method provided by moviepy
+final_clip=concatenate_videoclips(clips, method="compose")
+# write the output video file
+final_clip.write_videofile(output_path)
+
+
+if__name__=="__main__":
+importargparse
+parser=argparse.ArgumentParser(
+description="Simple Video Concatenation script in Python with MoviePy Library")
+parser.add_argument("-c", "--clips", nargs="+",
+help="List of audio or video clip paths")
+parser.add_argument("-r", "--reduce", action="store_true", 
+help="Whether to use the `reduce` method to reduce to the lowest quality on the resulting clip")
+parser.add_argument("-o", "--output", help="Output file name")
+args=parser.parse_args()
+clips=args.clips
+output_path=args.output
+reduce=args.reduce
+method="reduce"ifreduceelse"compose"
+concatenate(clips, output_path, method)

python-for-multimedia/combine-video/directed-by-robert.mp4

@@ -0,0 +1 @@
+moviepy