Squashed commit of the following:

commit 4fe0af4e6a4a15ee4796a857e79ad0fe9b72c0f1
Author: Dylan <dylanpdx@gmail.com>
Date:   Wed Dec 28 18:09:25 2022 +0000

    Misc. changes to MP4 Looping function

commit 42ef8845c38c5a74e56da3c5f035d5a6c091c86a
Author: Dylan <dylanpdx@gmail.com>
Date:   Tue Dec 27 20:00:22 2022 +0000

    Abandoning raw gif conversion for now; looping vid instead

commit b61938b340a02ac8cfab02048b7e9deaf87edbf5
Author: Dylan <dylanpdx@gmail.com>
Date:   Tue Dec 27 19:38:58 2022 +0000

    More work on WIP gif generation

commit 3bc6e7e0da1ce6ae905c80bbbaaa55a68050de52
Author: Dylan <dylanpdx@gmail.com>
Date:   Mon Dec 26 14:46:46 2022 +0000

    Experimental gif conversion

gifConvert/__init__.py

@@ -0,0 +1,92 @@
+import base64
+import os
+import subprocess
+import json
+import sys
+import tempfile
+
+def extractStatus(url):
+    return ""
+
+def get_video_frame_rate(filename):
+    result = subprocess.run(
+        [
+            "./ffprobe",
+            "-v",
+            "error",
+            "-select_streams",
+            "v",
+            "-of",
+            "default=noprint_wrappers=1:nokey=1",
+            "-show_entries",
+            "stream=r_frame_rate",
+            filename,
+        ],
+        stdout=subprocess.PIPE,
+        stderr=subprocess.STDOUT,
+    )
+    result_string = result.stdout.decode('utf-8').split()[0].split('/')
+    fps = float(result_string[0])/float(result_string[1])
+    return fps
+
+def get_video_length_seconds(filename):
+    result = subprocess.run(
+        [
+            "./ffprobe",
+            "-v",
+            "error",
+            "-show_entries",
+            "format=duration",
+            "-of",
+            "default=noprint_wrappers=1:nokey=1",
+            filename,
+        ],
+        stdout=subprocess.PIPE,
+        stderr=subprocess.STDOUT,
+    )
+    result_string = result.stdout.decode('utf-8').split()[0]
+    return float(result_string)
+
+def loop_video_until_length(filename, length):
+    # use stream_loop to loop video until it's at least length seconds long
+    video_length = get_video_length_seconds(filename)
+    if video_length < length:
+        loops = int(length/video_length)
+        new_filename = tempfile.mkstemp(suffix=".mp4")[1]
+        out = subprocess.call(["./ffmpeg","-stream_loop",str(loops),"-i",filename,"-c","copy","-y",new_filename],stdout=subprocess.DEVNULL,stderr=subprocess.STDOUT)
+        return new_filename
+    else:
+        return filename
+
+
+
+def lambda_handler(event, context):
+    if ("queryStringParameters" not in event):
+        return {
+            "statusCode": 400,
+            "body": "Invalid request."
+        }
+    
+    url = event["queryStringParameters"].get("url","")
+
+    # download video
+    videoLocation = tempfile.mkstemp(suffix=".mp4")[1]
+    subprocess.call(["wget","-O",videoLocation,url],stdout=subprocess.DEVNULL,stderr=subprocess.STDOUT)
+
+    videoLocationLooped = loop_video_until_length(videoLocation, 30)
+    if videoLocationLooped != videoLocation:
+        os.remove(videoLocation)
+        videoLocation = videoLocationLooped
+
+    with open(videoLocation, "rb") as image_file:
+        encoded_string = base64.b64encode(image_file.read()).decode('ascii')
+    os.remove(videoLocation)
+    return {
+        'statusCode': 200,
+        "headers": 
+        {
+            "Content-Type": "video/mp4"
+        },
+        'body': encoded_string,
+        'isBase64Encoded': True
+    }