Update app.py

app.py

@@ -31,8 +31,8 @@ async def text_to_speech(text, voice, rate, pitch):
 
 # 文字转视频功能
 def text_to_video(text, voice, rate, pitch, video_width, video_height, bg_color, text_color, text_font, text_size):
-    # 字体文件路径
-    font_path = os.path.abspath(text_font)
+    # Use a built-in font for testing purposes
+    font_path = os.path.abspath(text_font) if os.path.exists(text_font) else "Arial"
 
     # 计算每页可以容纳的行数和每行可以容纳的字符数
     max_chars_per_line = video_width // (text_size // 2)  # 字体宽度假设为字体大小的一半
@@ -74,7 +74,7 @@ def text_to_video(text, voice, rate, pitch, video_width, video_height, bg_color,
         with Drawing() as draw:
             draw.font = font_path
             draw.font_size = text_size
-            draw.fill_color = Color(text_color)  # Ensure text color is contrasting
+            draw.fill_color = Color(text_color)
             draw.text_alignment = 'center'
             draw.text_interline_spacing = 10
             with Image(width=video_width, height=video_height, background=Color(bg_color)) as img:
@@ -82,6 +82,7 @@ def text_to_video(text, voice, rate, pitch, video_width, video_height, bg_color,
                 for j, line in enumerate(lines):
                     # Calculate y position based on the line index
                     y_position = int((video_height / 2) - ((len(lines) * (text_size + 10)) / 2) + j * (text_size + 10))
+                    print(f"Drawing text: {line} at position: ({int(video_width / 2)}, {y_position})")  # Debugging line
                     draw.text(int(video_width / 2), y_position, line)
                 draw(img)  # Correctly draw the text onto the image
                 img.format = 'png'
@@ -89,7 +90,7 @@ def text_to_video(text, voice, rate, pitch, video_width, video_height, bg_color,
                 img.save(filename=img_path)
                 text_clip = ImageClip(img_path).set_duration(audio_clip.duration).set_audio(audio_clip)
                 video_clips.append(text_clip)
-        
+
     # 合并所有视频片段
     final_video = concatenate_videoclips(video_clips)
     final_video_path = os.path.join(tempfile.gettempdir(), "output_video.mp4")