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optimize the position of long subtitles

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This commit is contained in:
harry 2024-04-11 17:09:10 +08:00
parent 13f3e87a2d
commit 56a6d5c523
1 changed files with 31 additions and 24 deletions
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55
app/services/video.py
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@ -124,7 +124,7 @@ def wrap_text(text, max_width, font='Arial', fontsize=60):
width, height = get_text_size(text)
if width <= max_width:
return text
return text, height
logger.warning(f"wrapping text, max_width: {max_width}, text_width: {width}, text: {text}")
@ -149,8 +149,9 @@ def wrap_text(text, max_width, font='Arial', fontsize=60):
if processed:
_wrapped_lines_ = [line.strip() for line in _wrapped_lines_]
result = '\n'.join(_wrapped_lines_).strip()
height = len(_wrapped_lines_) * height
logger.warning(f"wrapped text: {result}")
return result
return result, height
_wrapped_lines_ = []
chars = list(text)
@ -165,8 +166,9 @@ def wrap_text(text, max_width, font='Arial', fontsize=60):
_txt_ = ''
_wrapped_lines_.append(_txt_)
result = '\n'.join(_wrapped_lines_).strip()
height = len(_wrapped_lines_) * height
logger.warning(f"wrapped text: {result}")
return result
return result, height
def generate_video(video_path: str,
@ -199,23 +201,15 @@ def generate_video(video_path: str,
logger.info(f"using font: {font_path}")
if params.subtitle_position == "top":
position_height = video_height * 0.1
elif params.subtitle_position == "bottom":
position_height = video_height * 0.9
else:
position_height = "center"
def generator(txt, **kwargs):
def create_text_clip(subtitle_item):
phrase = subtitle_item[1]
max_width = video_width * 0.9
# logger.debug(f"rendering text: {txt}")
wrapped_txt = wrap_text(txt,
max_width=max_width,
font=font_path,
fontsize=params.font_size
) # 调整max_width以适应你的视频
clip = TextClip(
wrapped_txt, txt_height = wrap_text(phrase,
max_width=max_width,
font=font_path,
fontsize=params.font_size
)
_clip = TextClip(
wrapped_txt,
font=font_path,
fontsize=params.font_size,
@ -225,15 +219,28 @@ def generate_video(video_path: str,
stroke_width=params.stroke_width,
print_cmd=False,
)
return clip
duration = subtitle_item[0][1] - subtitle_item[0][0]
_clip = _clip.set_start(subtitle_item[0][0])
_clip = _clip.set_end(subtitle_item[0][1])
_clip = _clip.set_duration(duration)
if params.subtitle_position == "bottom":
_clip = _clip.set_position(('center', video_height * 0.95 - _clip.h))
elif params.subtitle_position == "top":
_clip = _clip.set_position(('center', video_height * 0.1))
else:
_clip = _clip.set_position(('center', 'center'))
return _clip
video_clip = VideoFileClip(video_path)
audio_clip = AudioFileClip(audio_path).volumex(params.voice_volume)
if subtitle_path and os.path.exists(subtitle_path):
sub = SubtitlesClip(subtitles=subtitle_path, make_textclip=generator, encoding='utf-8')
sub_clip = sub.set_position(lambda _t: ('center', position_height))
video_clip = CompositeVideoClip([video_clip, sub_clip])
sub = SubtitlesClip(subtitles=subtitle_path, encoding='utf-8')
text_clips = []
for item in sub.subtitles:
clip = create_text_clip(subtitle_item=item)
text_clips.append(clip)
video_clip = CompositeVideoClip([video_clip, *text_clips])
bgm_file = get_bgm_file(bgm_type=params.bgm_type, bgm_file=params.bgm_file)
if bgm_file:
@ -258,7 +265,7 @@ if __name__ == "__main__":
txt_zh = "测试长字段这是您的旅行技巧指南帮助您进行预算友好的冒险"
font = utils.resource_dir() + "/fonts/STHeitiMedium.ttc"
for txt in [txt_en, txt_zh]:
t = wrap_text(text=txt, max_width=1000, font=font, fontsize=60)
t, h = wrap_text(text=txt, max_width=1000, font=font, fontsize=60)
print(t)
task_id = "aa563149-a7ea-49c2-b39f-8c32cc225baf"