from moviepy.editor import *

def bake_annotations(video_file, end_point,  annotations):
    clip = VideoFileClip(video_file)
    composite_clips = [clip]
    #for annotation in annotations:
    #    txt_clip = TextClip(annotation["text"], color="white", fontsize=70)
    #    txt_clip = txt_clip.set_position(("center", "bottom"))
    #    txt_clip = txt_clip.set_duration(0.5)
    #    txt_clip = txt_clip.set_start(float(annotation["time"]) / 1000.0)
    #    composite_clips.append(txt_clip)

    #final_video = CompositeVideoClip(composite_clips)
    final_video = generate_pauses(clip, annotations)
    final_video.write_videofile("video-out/" + end_point)


def generate_pauses(video_clip, annotations):
    """Takes in a regular video clip, and bakes in annotation pauses"""
    for annotation in reversed(annotations):
        pause_time = len(annotation["text"]) * 0.4
        current_annotation_time = annotation["time"] / 1000.0
        video_clip = video_clip.fx(vfx.freeze, t=current_annotation_time, freeze_duration=pause_time)

    return video_clip

from moviepy.editor import *

def bake_annotations(video_file, end_point,  annotations):
    clip = VideoFileClip(video_file)
    composite_clips = [clip]
    #for annotation in annotations:
    #    txt_clip = TextClip(annotation["text"], color="white", fontsize=70)
    #    txt_clip = txt_clip.set_position(("center", "bottom"))
    #    txt_clip = txt_clip.set_duration(0.5)
    #    txt_clip = txt_clip.set_start(float(annotation["time"]) / 1000.0)
    #    composite_clips.append(txt_clip)

    #final_video = CompositeVideoClip(composite_clips)
    final_video = generate_pauses(clip, annotations)
    final_video.write_videofile("video-out/" + end_point, audio=False)


def generate_pauses(video_clip, annotations):
    """Takes in a regular video clip, and bakes in annotation pauses"""
    pause_time = 1
    for annotation in reversed(annotations):
        current_annotation_time = annotation["time"] / 1000.0
        video_clip = video_clip.fx(vfx.freeze, t=current_annotation_time, freeze_duration=pause_time)

    return video_clip

--- 
+++ 
@@ -12,13 +12,13 @@
 
     #final_video = CompositeVideoClip(composite_clips)
     final_video = generate_pauses(clip, annotations)
-    final_video.write_videofile("video-out/" + end_point, audio=False)
+    final_video.write_videofile("video-out/" + end_point)
 
 
 def generate_pauses(video_clip, annotations):
     """Takes in a regular video clip, and bakes in annotation pauses"""
-    pause_time = 1
     for annotation in reversed(annotations):
+        pause_time = len(annotation["text"]) * 0.4
         current_annotation_time = annotation["time"] / 1000.0
         video_clip = video_clip.fx(vfx.freeze, t=current_annotation_time, freeze_duration=pause_time)
 
Make pause dependant on annotation text length
