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generate_video.py
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# -*- coding: utf-8 -*-
# @Author: Anderson
# @Date: 2019-11-26 17:22:56
# @Last Modified by: ander
# @Last Modified time: 2019-11-27 21:45:52
from moviepy.editor import VideoFileClip, ColorClip, CompositeVideoClip, AudioFileClip
import moviepy.video.fx.all as vfx
from moviepy.video.fx.mask_color import mask_color
import time
import json
def tiktok_effect(frame):
# 单独抽取去掉红色通道的图像
gb_channel_frame = frame.copy()
gb_channel_frame[:, :, 0].fill(0)
# 单独抽取红色通道图像
r_channel_frame = frame.copy()
r_channel_frame[:, :, 1].fill(0)
r_channel_frame[:, :, 2].fill(0)
# 错位合并图像，形成抖音效果
result = frame.copy()
result[:-5, :-5, :] = r_channel_frame[:-5, :-5, :] + gb_channel_frame[5:, 5:, :]
return result
def person_mask_effect(roi_clip, mask_clip, current_time, clip_start_time, clip_end_time):
clip_duration = clip_end_time - clip_start_time
red_clip = ColorClip(roi_clip.size, (255, 0, 0), duration=clip_duration)
blue_clip = ColorClip(roi_clip.size, (0, 0, 255), duration=clip_duration)
roi_clip = roi_clip.subclip(clip_start_time, clip_end_time)
mask_clip = mask_clip.subclip(clip_start_time, clip_end_time)
person_clip_height = int(HEIGHT * 0.9)
center_person_clip = (
roi_clip.fl_image(tiktok_effect)
.set_mask(mask_clip)
.resize(height=person_clip_height)
.set_pos(("center", "center"))
.set_start(current_time)
)
left_person_clip = (
red_clip.set_mask(mask_clip)
.resize(height=person_clip_height)
.set_opacity(0.5)
.set_start(current_time)
)
right_person_clip = (
blue_clip.set_mask(mask_clip)
.resize(height=person_clip_height)
.set_opacity(0.5)
.set_start(current_time)
)
left_person_clip_x = (WIDTH / 2 - left_person_clip.w / 2) - int(
left_person_clip.w * 0.3
)
right_person_clip_x = (WIDTH / 2 - left_person_clip.w / 2) + int(
left_person_clip.w * 0.3
)
person_clip_y = HEIGHT / 2 - left_person_clip.h / 2
left_person_clip = left_person_clip.set_pos((left_person_clip_x, person_clip_y))
right_person_clip = right_person_clip.set_pos((right_person_clip_x, person_clip_y))
return [left_person_clip, right_person_clip, center_person_clip]
def pure_color_person_mask_effect(roi_clip, mask_clip, current_time, clip_start_time, clip_end_time):
clip_duration = clip_end_time - clip_start_time
white_clip = ColorClip(SIZE, (255, 255, 255), duration=clip_duration)
mask_clip = mask_clip.subclip(clip_start_time, clip_end_time)
person_clip_height = int(HEIGHT * 0.9)
center_person_clip = (
white_clip
.set_mask(mask_clip.resize(height=person_clip_height))
.set_pos(("center", "center"))
.set_start(current_time)
)
background_color_clip = ColorClip(
SIZE, (80, 40, 255), duration=clip_duration
).set_start(current_time)
return [
CompositeVideoClip([background_color_clip, center_person_clip]).fl_image(
tiktok_effect
)
]
with open('config.json', 'r', encoding='utf-8') as f:
CONFIGS = json.load(f)
WIDTH, HEIGHT = CONFIGS['width'], CONFIGS['height']
SIZE = (WIDTH, HEIGHT)
PURE_COLOR_EFFECT_TIMES = CONFIGS['special times']
PERSON_CLIPS_FILENAMES = CONFIGS['person clip files']
BACKGROUND_MUSIC = CONFIGS['bgm']
BACKGROUND_VIDEO = CONFIGS['background video']
background_music = AudioFileClip(BACKGROUND_MUSIC)
final_clip_duration = background_music.duration
composite_clips = []
pure_color_effect_clips = []
current_time = 0
for person_clip_filename in PERSON_CLIPS_FILENAMES:
roi_clip_filename = ".".join(person_clip_filename.split(".")[:-1]) + "_roi.avi"
mask_clip_filename = ".".join(person_clip_filename.split(".")[:-1]) + "_mask.avi"
roi_clip = VideoFileClip(roi_clip_filename).without_audio()
mask_clip = (
mask_color(VideoFileClip(mask_clip_filename), color=[255, 255, 255])
.fx(vfx.loop, duration=roi_clip.duration)
.to_mask()
)
clip_duration = roi_clip.duration
person_mask_effect_clips = person_mask_effect(roi_clip, mask_clip, current_time, 0, clip_duration)
composite_clips.extend(person_mask_effect_clips)
pure_color_person_mask_effect_clips = pure_color_person_mask_effect(
roi_clip, mask_clip, current_time, 0, clip_duration
)
pure_color_effect_clips.extend(pure_color_person_mask_effect_clips)
current_time += clip_duration
pure_color_effect_clip = CompositeVideoClip(pure_color_effect_clips).fx(vfx.loop, duration=final_clip_duration)
pure_color_effect_subclips = []
for start_time, end_time in PURE_COLOR_EFFECT_TIMES:
if start_time < final_clip_duration:
subclip = pure_color_effect_clip.subclip(start_time, end_time).set_start(start_time)
pure_color_effect_subclips.append(subclip)
else:
break
pure_color_effect_subclip = CompositeVideoClip(pure_color_effect_subclips)
background_clip = (
VideoFileClip(BACKGROUND_VIDEO)
.without_audio()
.resize(SIZE)
.fx(vfx.loop, duration=final_clip_duration)
)
composite_clips.insert(0, background_clip)
loop_clip = CompositeVideoClip(composite_clips).set_duration(
min(current_time, final_clip_duration)
)
loop_clip_path = f'./Temp/{time.strftime("%Y-%m-%d_%H-%M-%S", time.localtime())}.mp4'
loop_clip.write_videofile(
loop_clip_path,
fps=30,
codec='mpeg4',
bitrate="8000k",
threads=4,
)
loop_clip = VideoFileClip(loop_clip_path).fx(vfx.loop, duration=final_clip_duration)
final_clip = CompositeVideoClip([loop_clip, pure_color_effect_subclip])
final_clip = final_clip.set_audio(background_music).set_duration(final_clip_duration)
final_clip.write_videofile(
f'./output/{time.strftime("%Y-%m-%d_%H-%M-%S", time.localtime())}.mp4',
fps=30,
codec='mpeg4',
bitrate="8000k",
audio_codec="libmp3lame",
threads=4,
)