1 class PDF2VideoThread(QThread):
2 success_signal = Signal(str)
3 log_signal = Signal(str)
4 progress_signal = Signal(int)
5
6 def __init__(self, pdf_path, video_output_path, start_page, end_page,
7 video_width, video_height, video_fps, image_duration,
8 enable_audio, audio_is_loop, audio_path,
9 enable_decor, decor_path, decor_num, decor_rate, decor_transparency,
10 enable_transition, image_transition_time, image_transition_name,
11 enable_word, word_size, word_duration, word_color, word_side_color, word_content,
12 *args, **kwargs):
13 super().__init__(*args, **kwargs)
14 self.pdf_path = pdf_path
15 self.video_output_path = video_output_path
16 self.start_page = int(start_page)
17 self.end_page = int(end_page)
18 self.video_width = int(video_width)
19 self.video_height = int(video_height)
20 self.image_duration = float(image_duration)
21 self.video_fps = int(video_fps)
22 self.enable_audio = enable_audio
23 self.audio_is_loop = audio_is_loop
24 self.audio_path = audio_path
25 self.enable_decor = enable_decor
26 self.decor_path = decor_path
27 self.decor_num = int(decor_num)
28 self.decor_rate = float(decor_rate)
29 self.decor_transparency = int(decor_transparency)
30 self.enable_transition = enable_transition
31 self.image_transition_time = float(image_transition_time)
32 self.image_transition_name = image_transition_name
33 self.enable_word = enable_word
34 self.word_size = word_size
35 self.word_duration = word_duration
36 self.word_color = word_color
37 self.word_side_color = word_side_color
38 self.word_content = word_content
39
40 def run(self):
41 """
42 各步驟佔比權重
43 pdf轉圖片：15
44 圖片加裝飾：15
45 圖片轉視頻：50
46 視頻加文字：20
47 @return:
48 """
49 # 獲得pdf文件名
50 pdf_name = os.path.splitext(os.path.basename(self.pdf_path))[0]
51
52 pdf_to_images(self.log_signal, self.pdf_path, temp_image_path,
53 first_page=self.start_page, last_page=self.end_page, dpi=200)
54 self.progress_signal.emit(15)
55
56 if self.enable_decor:
57 image_paths = get_image_files(temp_image_path)
58 for image_path in image_paths:
59 self.log_signal.emit(f"裝飾: {image_path}")
60 add_decor_from_library(image_path=image_path,
61 decor_folder=self.decor_path,
62 num_decor=self.decor_num,
63 decor_rate=self.decor_rate,
64 decor_transparency=self.decor_transparency,
65 output_path=image_path)
66 self.progress_signal.emit(15 + 15)
67
68 # --------- 圖片加音頻、轉視頻 ---------
69 self.log_signal.emit(f"---------開始圖片轉視頻---------")
70 self.log_signal.emit(f"正在進行圖片轉視頻（用時較長 10-40秒左右），請稍後...")
71 output_path = os.path.join(self.video_output_path, f"{pdf_name}.mp4")
72 video_duration = images_to_video(
73 self.log_signal,
74 image_folder=temp_image_path, # 圖片目錄
75 output_path=output_path, # 輸出視頻路徑
76 width=self.video_width, # 寬
77 height=self.video_height, # 高
78 fps=self.video_fps, # 幀率
79 image_duration=self.image_duration, # 每張圖片持續時間
80 transition_duration=self.image_transition_time, # 轉場1秒
81 transition_type=self.image_transition_name, # 淡入淡出效果 fade、wipeleft、slideleft
82 audio_path=self.audio_path # 可選背景音樂
83 )
84 self.progress_signal.emit(15 + 15 + 50)
85
86 if self.enable_word:
87 self.log_signal.emit(f"✅ 視頻已生成：{output_path}")
88 # --------- 視頻加文字 ---------
89 self.log_signal.emit(f"---------開始視頻加文字---------")
90 self.log_signal.emit(f"正在進行視頻加文字，請稍後...")
91 output_path2 = os.path.join(self.video_output_path, f"{pdf_name}_加文字.mp4")
92 add_text(
93 input_video=output_path,
94 output_video=output_path2,
95 video_duration=video_duration, # ✅ 已知視頻總時長
96 text=self.word_content,
97 duration=float(self.word_duration),
98 fontsize=int(self.word_size),
99 fontcolor=self.word_color,
100 bordercolor=self.word_side_color,
101 borderw=5,
102 fontfile=rf"simhei.ttf", # 微軟雅黑字體
103 y="h-300"
104 )
105 self.success_signal.emit(f"✅ 帶文字的視頻已生成：{output_path2}")
106 else:
107 self.success_signal.emit(f"✅ 視頻已生成：{output_path}")
108
109 self.progress_signal.emit(15 + 15 + 50 + 20)
