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import gradio as gr | |
from typing import Dict | |
from moviepy.editor import VideoFileClip, concatenate_videoclips | |
class VideoCreator: | |
def __init__(self, | |
tts_pipeline, | |
image_pipeline) -> None: | |
self.tts_pipeline = tts_pipeline | |
self.image_pipeline = image_pipeline | |
def create_video(self, | |
scenes: Dict, | |
video_styles: str) -> str: | |
videos_dict = {} | |
for index, scene in enumerate(scenes): | |
video_scene = self._create_video_from_scene(scenes[scene], | |
video_styles) | |
videos_dict[index] = video_scene | |
merged_video = self._merge_videos(videos_dict) | |
return merged_video | |
def _create_video_from_scene(self, scene: Dict, video_styles: str) -> str: | |
audio_file = self._get_audio_from_text(scene["Summary"]) | |
bg_image = self._get_bg_image_from_description(scene["Illustration"], video_styles) | |
video = gr.make_waveform(audio=audio_file, | |
bg_image=bg_image) | |
return video | |
def _get_audio_from_text(self, voice_over: str) -> str: | |
self.tts_pipeline.tts_to_file(text=voice_over, | |
file_path="output.wav") | |
return "output.wav" | |
def _get_bg_image_from_description(self, img_desc: str, video_styles: str): | |
images = self.image_pipeline(img_desc + video_styles) | |
print("Image generated!") | |
image_output = images.images[0] | |
image_output.save("img.png") | |
return "img.png" | |
def _merge_videos(self, videos_dict: Dict) -> str: | |
videos_to_concatenate = [] | |
for video in range(len(videos_dict)): | |
video_clip = VideoFileClip(videos_dict[video]) | |
videos_to_concatenate.append(video_clip) | |
final_video = concatenate_videoclips(videos_to_concatenate) | |
try: | |
final_video.write_videofile("final_video.mp4", | |
threads=4) | |
print("Saved .mp4 without Exception at final_video.mp4") | |
return "final_video.mp4" | |
except IndexError: | |
# Short by one frame, so get rid on the last frame: | |
final_video = final_video.subclip(t_end=(video_clip.duration - 1.0/final_video.fps)) | |
final_video.write_videofile("final_video.mp4", | |
threads=4) | |
print("Saved .mp4 after Exception at final_video.mp4") | |
return "final_video.mp4" | |
except Exception as e: | |
print("Exception {} was raised!!".format(e)) | |
return "final_video.mp4" |