mirror of
https://github.com/linyqh/NarratoAI.git
synced 2025-12-11 10:32:49 +00:00
470 lines
18 KiB
Python
470 lines
18 KiB
Python
#!/usr/bin/env python
|
||
# -*- coding: UTF-8 -*-
|
||
|
||
'''
|
||
@Project: NarratoAI
|
||
@File : generate_video
|
||
@Author : Viccy同学
|
||
@Date : 2025/5/7 上午11:55
|
||
'''
|
||
|
||
import os
|
||
import traceback
|
||
import tempfile
|
||
from typing import Optional, Dict, Any
|
||
from loguru import logger
|
||
from moviepy import (
|
||
VideoFileClip,
|
||
AudioFileClip,
|
||
CompositeAudioClip,
|
||
CompositeVideoClip,
|
||
TextClip,
|
||
afx
|
||
)
|
||
from moviepy.video.tools.subtitles import SubtitlesClip
|
||
from PIL import ImageFont
|
||
|
||
from app.utils import utils
|
||
from app.models.schema import AudioVolumeDefaults
|
||
from app.services.audio_normalizer import AudioNormalizer, normalize_audio_for_mixing
|
||
|
||
|
||
def merge_materials(
|
||
video_path: str,
|
||
audio_path: str,
|
||
output_path: str,
|
||
subtitle_path: Optional[str] = None,
|
||
bgm_path: Optional[str] = None,
|
||
options: Optional[Dict[str, Any]] = None
|
||
) -> str:
|
||
"""
|
||
合并视频、音频、BGM和字幕素材生成最终视频
|
||
|
||
参数:
|
||
video_path: 视频文件路径
|
||
audio_path: 音频文件路径
|
||
output_path: 输出文件路径
|
||
subtitle_path: 字幕文件路径，可选
|
||
bgm_path: 背景音乐文件路径，可选
|
||
options: 其他选项配置，可包含以下字段:
|
||
- voice_volume: 人声音量，默认1.0
|
||
- bgm_volume: 背景音乐音量，默认0.3
|
||
- original_audio_volume: 原始音频音量，默认0.0
|
||
- keep_original_audio: 是否保留原始音频，默认False
|
||
- subtitle_font: 字幕字体，默认None，系统会使用默认字体
|
||
- subtitle_font_size: 字幕字体大小，默认40
|
||
- subtitle_color: 字幕颜色，默认白色
|
||
- subtitle_bg_color: 字幕背景颜色，默认透明
|
||
- subtitle_position: 字幕位置，可选值'bottom', 'top', 'center'，默认'bottom'
|
||
- custom_position: 自定义位置
|
||
- stroke_color: 描边颜色，默认黑色
|
||
- stroke_width: 描边宽度，默认1
|
||
- threads: 处理线程数，默认2
|
||
- fps: 输出帧率，默认30
|
||
- subtitle_enabled: 是否启用字幕，默认True
|
||
|
||
返回:
|
||
输出视频的路径
|
||
"""
|
||
# 合并选项默认值
|
||
if options is None:
|
||
options = {}
|
||
|
||
# 设置默认参数值 - 使用统一的音量配置
|
||
voice_volume = options.get('voice_volume', AudioVolumeDefaults.VOICE_VOLUME)
|
||
bgm_volume = options.get('bgm_volume', AudioVolumeDefaults.BGM_VOLUME)
|
||
# 修复bug: 将原声音量默认值从0.0改为0.7，确保短剧解说模式下原片音量正常
|
||
original_audio_volume = options.get('original_audio_volume', AudioVolumeDefaults.ORIGINAL_VOLUME)
|
||
keep_original_audio = options.get('keep_original_audio', True) # 默认保留原声
|
||
subtitle_font = options.get('subtitle_font', '')
|
||
subtitle_font_size = options.get('subtitle_font_size', 40)
|
||
subtitle_color = options.get('subtitle_color', '#FFFFFF')
|
||
subtitle_bg_color = options.get('subtitle_bg_color', 'transparent')
|
||
subtitle_position = options.get('subtitle_position', 'bottom')
|
||
custom_position = options.get('custom_position', 70)
|
||
stroke_color = options.get('stroke_color', '#000000')
|
||
stroke_width = options.get('stroke_width', 1)
|
||
threads = options.get('threads', 2)
|
||
fps = options.get('fps', 30)
|
||
subtitle_enabled = options.get('subtitle_enabled', True)
|
||
|
||
# 配置日志 - 便于调试问题
|
||
logger.info(f"音量配置详情:")
|
||
logger.info(f" - 配音音量: {voice_volume}")
|
||
logger.info(f" - 背景音乐音量: {bgm_volume}")
|
||
logger.info(f" - 原声音量: {original_audio_volume}")
|
||
logger.info(f" - 是否保留原声: {keep_original_audio}")
|
||
logger.info(f"字幕配置详情:")
|
||
logger.info(f" - 是否启用字幕: {subtitle_enabled}")
|
||
logger.info(f" - 字幕文件路径: {subtitle_path}")
|
||
|
||
# 音量参数验证
|
||
def validate_volume(volume, name):
|
||
if not (AudioVolumeDefaults.MIN_VOLUME <= volume <= AudioVolumeDefaults.MAX_VOLUME):
|
||
logger.warning(f"{name}音量 {volume} 超出有效范围 [{AudioVolumeDefaults.MIN_VOLUME}, {AudioVolumeDefaults.MAX_VOLUME}]，将被限制")
|
||
return max(AudioVolumeDefaults.MIN_VOLUME, min(volume, AudioVolumeDefaults.MAX_VOLUME))
|
||
return volume
|
||
|
||
voice_volume = validate_volume(voice_volume, "配音")
|
||
bgm_volume = validate_volume(bgm_volume, "背景音乐")
|
||
original_audio_volume = validate_volume(original_audio_volume, "原声")
|
||
|
||
# 处理透明背景色问题 - MoviePy 2.1.1不支持'transparent'值
|
||
if subtitle_bg_color == 'transparent':
|
||
subtitle_bg_color = None # None在新版MoviePy中表示透明背景
|
||
|
||
# 创建输出目录（如果不存在）
|
||
output_dir = os.path.dirname(output_path)
|
||
os.makedirs(output_dir, exist_ok=True)
|
||
|
||
logger.info(f"开始合并素材...")
|
||
logger.info(f" ① 视频: {video_path}")
|
||
logger.info(f" ② 音频: {audio_path}")
|
||
if subtitle_path:
|
||
logger.info(f" ③ 字幕: {subtitle_path}")
|
||
if bgm_path:
|
||
logger.info(f" ④ 背景音乐: {bgm_path}")
|
||
logger.info(f" ⑤ 输出: {output_path}")
|
||
|
||
# 加载视频
|
||
try:
|
||
video_clip = VideoFileClip(video_path)
|
||
logger.info(f"视频尺寸: {video_clip.size[0]}x{video_clip.size[1]}, 时长: {video_clip.duration}秒")
|
||
|
||
# 提取视频原声(如果需要)
|
||
original_audio = None
|
||
if keep_original_audio and original_audio_volume > 0:
|
||
try:
|
||
original_audio = video_clip.audio
|
||
if original_audio:
|
||
original_audio = original_audio.with_effects([afx.MultiplyVolume(original_audio_volume)])
|
||
logger.info(f"已提取视频原声，音量设置为: {original_audio_volume}")
|
||
else:
|
||
logger.warning("视频没有音轨，无法提取原声")
|
||
except Exception as e:
|
||
logger.error(f"提取视频原声失败: {str(e)}")
|
||
original_audio = None
|
||
|
||
# 移除原始音轨，稍后会合并新的音频
|
||
video_clip = video_clip.without_audio()
|
||
|
||
except Exception as e:
|
||
logger.error(f"加载视频失败: {str(e)}")
|
||
raise
|
||
|
||
# 处理背景音乐和所有音频轨道合成
|
||
audio_tracks = []
|
||
|
||
# 智能音量调整（可选功能）
|
||
if AudioVolumeDefaults.ENABLE_SMART_VOLUME and audio_path and os.path.exists(audio_path) and original_audio is not None:
|
||
try:
|
||
normalizer = AudioNormalizer()
|
||
temp_dir = tempfile.mkdtemp()
|
||
temp_original_path = os.path.join(temp_dir, "temp_original.wav")
|
||
|
||
# 保存原声到临时文件进行分析
|
||
original_audio.write_audiofile(temp_original_path, verbose=False, logger=None)
|
||
|
||
# 计算智能音量调整
|
||
tts_adjustment, original_adjustment = normalizer.calculate_volume_adjustment(
|
||
audio_path, temp_original_path
|
||
)
|
||
|
||
# 应用智能调整，但保留用户设置的相对比例
|
||
smart_voice_volume = voice_volume * tts_adjustment
|
||
smart_original_volume = original_audio_volume * original_adjustment
|
||
|
||
# 限制音量范围，避免过度调整
|
||
smart_voice_volume = max(0.1, min(1.5, smart_voice_volume))
|
||
smart_original_volume = max(0.1, min(2.0, smart_original_volume))
|
||
|
||
voice_volume = smart_voice_volume
|
||
original_audio_volume = smart_original_volume
|
||
|
||
logger.info(f"智能音量调整 - TTS: {voice_volume:.2f}, 原声: {original_audio_volume:.2f}")
|
||
|
||
# 清理临时文件
|
||
import shutil
|
||
shutil.rmtree(temp_dir)
|
||
|
||
except Exception as e:
|
||
logger.warning(f"智能音量分析失败，使用原始设置: {e}")
|
||
|
||
# 先添加主音频（配音）
|
||
if audio_path and os.path.exists(audio_path):
|
||
try:
|
||
voice_audio = AudioFileClip(audio_path).with_effects([afx.MultiplyVolume(voice_volume)])
|
||
audio_tracks.append(voice_audio)
|
||
logger.info(f"已添加配音音频，音量: {voice_volume}")
|
||
except Exception as e:
|
||
logger.error(f"加载配音音频失败: {str(e)}")
|
||
|
||
# 添加原声（如果需要）
|
||
if original_audio is not None:
|
||
# 重新应用调整后的音量（因为original_audio已经应用了一次音量）
|
||
# 计算需要的额外调整
|
||
current_volume_in_original = 1.0 # original_audio中已应用的音量
|
||
additional_adjustment = original_audio_volume / current_volume_in_original
|
||
|
||
adjusted_original_audio = original_audio.with_effects([afx.MultiplyVolume(additional_adjustment)])
|
||
audio_tracks.append(adjusted_original_audio)
|
||
logger.info(f"已添加视频原声，最终音量: {original_audio_volume}")
|
||
|
||
# 添加背景音乐（如果有）
|
||
if bgm_path and os.path.exists(bgm_path):
|
||
try:
|
||
bgm_clip = AudioFileClip(bgm_path).with_effects([
|
||
afx.MultiplyVolume(bgm_volume),
|
||
afx.AudioFadeOut(3),
|
||
afx.AudioLoop(duration=video_clip.duration),
|
||
])
|
||
audio_tracks.append(bgm_clip)
|
||
logger.info(f"已添加背景音乐，音量: {bgm_volume}")
|
||
except Exception as e:
|
||
logger.error(f"添加背景音乐失败: \n{traceback.format_exc()}")
|
||
|
||
# 合成最终的音频轨道
|
||
if audio_tracks:
|
||
final_audio = CompositeAudioClip(audio_tracks)
|
||
video_clip = video_clip.with_audio(final_audio)
|
||
logger.info(f"已合成所有音频轨道，共{len(audio_tracks)}个")
|
||
else:
|
||
logger.warning("没有可用的音频轨道，输出视频将没有声音")
|
||
|
||
# 处理字体路径
|
||
font_path = None
|
||
if subtitle_path and subtitle_font:
|
||
font_path = os.path.join(utils.font_dir(), subtitle_font)
|
||
if os.name == "nt":
|
||
font_path = font_path.replace("\\", "/")
|
||
logger.info(f"使用字体: {font_path}")
|
||
|
||
# 处理视频尺寸
|
||
video_width, video_height = video_clip.size
|
||
|
||
# 字幕处理函数
|
||
def create_text_clip(subtitle_item):
|
||
"""创建单个字幕片段"""
|
||
phrase = subtitle_item[1]
|
||
max_width = video_width * 0.9
|
||
|
||
# 如果有字体路径，进行文本换行处理
|
||
wrapped_txt = phrase
|
||
txt_height = 0
|
||
if font_path:
|
||
wrapped_txt, txt_height = wrap_text(
|
||
phrase,
|
||
max_width=max_width,
|
||
font=font_path,
|
||
fontsize=subtitle_font_size
|
||
)
|
||
|
||
# 创建文本片段
|
||
try:
|
||
_clip = TextClip(
|
||
text=wrapped_txt,
|
||
font=font_path,
|
||
font_size=subtitle_font_size,
|
||
color=subtitle_color,
|
||
bg_color=subtitle_bg_color, # 这里已经在前面处理过，None表示透明
|
||
stroke_color=stroke_color,
|
||
stroke_width=stroke_width,
|
||
)
|
||
except Exception as e:
|
||
logger.error(f"创建字幕片段失败: {str(e)}, 使用简化参数重试")
|
||
# 如果上面的方法失败，尝试使用更简单的参数
|
||
_clip = TextClip(
|
||
text=wrapped_txt,
|
||
font=font_path,
|
||
font_size=subtitle_font_size,
|
||
color=subtitle_color,
|
||
)
|
||
|
||
# 设置字幕时间
|
||
duration = subtitle_item[0][1] - subtitle_item[0][0]
|
||
_clip = _clip.with_start(subtitle_item[0][0])
|
||
_clip = _clip.with_end(subtitle_item[0][1])
|
||
_clip = _clip.with_duration(duration)
|
||
|
||
# 设置字幕位置
|
||
if subtitle_position == "bottom":
|
||
_clip = _clip.with_position(("center", video_height * 0.95 - _clip.h))
|
||
elif subtitle_position == "top":
|
||
_clip = _clip.with_position(("center", video_height * 0.05))
|
||
elif subtitle_position == "custom":
|
||
margin = 10
|
||
max_y = video_height - _clip.h - margin
|
||
min_y = margin
|
||
custom_y = (video_height - _clip.h) * (custom_position / 100)
|
||
custom_y = max(
|
||
min_y, min(custom_y, max_y)
|
||
)
|
||
_clip = _clip.with_position(("center", custom_y))
|
||
else: # center
|
||
_clip = _clip.with_position(("center", "center"))
|
||
|
||
return _clip
|
||
|
||
# 创建TextClip工厂函数
|
||
def make_textclip(text):
|
||
return TextClip(
|
||
text=text,
|
||
font=font_path,
|
||
font_size=subtitle_font_size,
|
||
color=subtitle_color,
|
||
)
|
||
|
||
# 处理字幕 - 修复字幕开关bug
|
||
if subtitle_enabled and subtitle_path and os.path.exists(subtitle_path):
|
||
logger.info("字幕已启用，开始处理字幕文件")
|
||
try:
|
||
# 加载字幕文件
|
||
sub = SubtitlesClip(
|
||
subtitles=subtitle_path,
|
||
encoding="utf-8",
|
||
make_textclip=make_textclip
|
||
)
|
||
|
||
# 创建每个字幕片段
|
||
text_clips = []
|
||
for item in sub.subtitles:
|
||
clip = create_text_clip(subtitle_item=item)
|
||
text_clips.append(clip)
|
||
|
||
# 合成视频和字幕
|
||
video_clip = CompositeVideoClip([video_clip, *text_clips])
|
||
logger.info(f"已添加{len(text_clips)}个字幕片段")
|
||
except Exception as e:
|
||
logger.error(f"处理字幕失败: \n{traceback.format_exc()}")
|
||
elif not subtitle_enabled:
|
||
logger.info("字幕已禁用，跳过字幕处理")
|
||
elif not subtitle_path:
|
||
logger.info("未提供字幕文件路径，跳过字幕处理")
|
||
elif not os.path.exists(subtitle_path):
|
||
logger.warning(f"字幕文件不存在: {subtitle_path}，跳过字幕处理")
|
||
|
||
# 导出最终视频
|
||
try:
|
||
video_clip.write_videofile(
|
||
output_path,
|
||
audio_codec="aac",
|
||
temp_audiofile_path=output_dir,
|
||
threads=threads,
|
||
fps=fps,
|
||
)
|
||
logger.success(f"素材合并完成: {output_path}")
|
||
except Exception as e:
|
||
logger.error(f"导出视频失败: {str(e)}")
|
||
raise
|
||
finally:
|
||
# 释放资源
|
||
video_clip.close()
|
||
del video_clip
|
||
|
||
return output_path
|
||
|
||
|
||
def wrap_text(text, max_width, font="Arial", fontsize=60):
|
||
"""
|
||
文本换行函数，使长文本适应指定宽度
|
||
|
||
参数:
|
||
text: 需要换行的文本
|
||
max_width: 最大宽度（像素）
|
||
font: 字体路径
|
||
fontsize: 字体大小
|
||
|
||
返回:
|
||
换行后的文本和文本高度
|
||
"""
|
||
# 创建ImageFont对象
|
||
try:
|
||
font_obj = ImageFont.truetype(font, fontsize)
|
||
except:
|
||
# 如果无法加载指定字体，使用默认字体
|
||
font_obj = ImageFont.load_default()
|
||
|
||
def get_text_size(inner_text):
|
||
inner_text = inner_text.strip()
|
||
left, top, right, bottom = font_obj.getbbox(inner_text)
|
||
return right - left, bottom - top
|
||
|
||
width, height = get_text_size(text)
|
||
if width <= max_width:
|
||
return text, height
|
||
|
||
processed = True
|
||
|
||
_wrapped_lines_ = []
|
||
words = text.split(" ")
|
||
_txt_ = ""
|
||
for word in words:
|
||
_before = _txt_
|
||
_txt_ += f"{word} "
|
||
_width, _height = get_text_size(_txt_)
|
||
if _width <= max_width:
|
||
continue
|
||
else:
|
||
if _txt_.strip() == word.strip():
|
||
processed = False
|
||
break
|
||
_wrapped_lines_.append(_before)
|
||
_txt_ = f"{word} "
|
||
_wrapped_lines_.append(_txt_)
|
||
if processed:
|
||
_wrapped_lines_ = [line.strip() for line in _wrapped_lines_]
|
||
result = "\n".join(_wrapped_lines_).strip()
|
||
height = len(_wrapped_lines_) * height
|
||
return result, height
|
||
|
||
_wrapped_lines_ = []
|
||
chars = list(text)
|
||
_txt_ = ""
|
||
for word in chars:
|
||
_txt_ += word
|
||
_width, _height = get_text_size(_txt_)
|
||
if _width <= max_width:
|
||
continue
|
||
else:
|
||
_wrapped_lines_.append(_txt_)
|
||
_txt_ = ""
|
||
_wrapped_lines_.append(_txt_)
|
||
result = "\n".join(_wrapped_lines_).strip()
|
||
height = len(_wrapped_lines_) * height
|
||
return result, height
|
||
|
||
|
||
if __name__ == '__main__':
|
||
merger_mp4 = '/Users/apple/Desktop/home/NarratoAI/storage/tasks/qyn2-2-demo/merger.mp4'
|
||
merger_sub = '/Users/apple/Desktop/home/NarratoAI/storage/tasks/qyn2-2-demo/merged_subtitle_00_00_00-00_01_30.srt'
|
||
merger_audio = '/Users/apple/Desktop/home/NarratoAI/storage/tasks/qyn2-2-demo/merger_audio.mp3'
|
||
bgm_path = '/Users/apple/Desktop/home/NarratoAI/resource/songs/bgm.mp3'
|
||
output_video = '/Users/apple/Desktop/home/NarratoAI/storage/tasks/qyn2-2-demo/combined_test.mp4'
|
||
|
||
# 调用示例
|
||
options = {
|
||
'voice_volume': 1.0, # 配音音量
|
||
'bgm_volume': 0.1, # 背景音乐音量
|
||
'original_audio_volume': 1.0, # 视频原声音量，0表示不保留
|
||
'keep_original_audio': True, # 是否保留原声
|
||
'subtitle_enabled': True, # 是否启用字幕 - 修复字幕开关bug
|
||
'subtitle_font': 'MicrosoftYaHeiNormal.ttc', # 这里使用相对字体路径，会自动在 font_dir() 目录下查找
|
||
'subtitle_font_size': 40,
|
||
'subtitle_color': '#FFFFFF',
|
||
'subtitle_bg_color': None, # 直接使用None表示透明背景
|
||
'subtitle_position': 'bottom',
|
||
'threads': 2
|
||
}
|
||
|
||
try:
|
||
merge_materials(
|
||
video_path=merger_mp4,
|
||
audio_path=merger_audio,
|
||
subtitle_path=merger_sub,
|
||
bgm_path=bgm_path,
|
||
output_path=output_video,
|
||
options=options
|
||
)
|
||
except Exception as e:
|
||
logger.error(f"合并素材失败: \n{traceback.format_exc()}")
|