You've already forked FrameTour-RenderWorker
35 lines
1.1 KiB
Python
35 lines
1.1 KiB
Python
from typing import List
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from .base import EffectProcessor
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class SpeedEffect(EffectProcessor):
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"""视频变速效果处理器"""
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def validate_params(self) -> bool:
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"""验证参数：速度倍数"""
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if not self.params:
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return True # 默认不变速
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try:
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speed = float(self.params)
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return speed > 0
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except ValueError:
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return False
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def generate_filter_args(self, video_input: str, effect_index: int) -> tuple[List[str], str]:
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"""生成变速效果的滤镜参数"""
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if not self.validate_params():
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return [], video_input
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if not self.params or self.params == "1":
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return [], video_input # 不需要变速
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speed = float(self.params)
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output_stream = f"[v_eff{effect_index}]"
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# 使用setpts进行变速
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filter_args = [f"{video_input}setpts={speed}*PTS{output_stream}"]
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return filter_args, output_stream
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def get_effect_name(self) -> str:
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return "ospeed" |