48 lines
1.8 KiB
Python
Executable File
48 lines
1.8 KiB
Python
Executable File
"""绿幕抠像引擎 — 基于 FFmpeg colorkey / chromakey 滤镜.
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支持将指定颜色（默认绿色）变为透明，可用于虚拟背景、画中画背景替换等场景。
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注：核心领域模型已抽离到 packages/domain/chroma_key_config.py，
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本模块保留薄包装层，确保向后兼容。
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"""
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from __future__ import annotations
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import logging
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from packages.domain.chroma_key_config import CHROMA_KEY_PRESETS # noqa: F401
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from packages.domain.chroma_key_config import apply_chroma_key_if_needed # noqa: F401
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from packages.domain.chroma_key_config import (
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ChromaKeyConfig,
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)
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from packages.domain.chroma_key_config import ( # noqa: F401 — 向后兼容
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build_chromakey_filter as _build_chromakey_filter_base,
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)
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from packages.domain.chroma_key_config import build_colorkey_filter as _build_colorkey_filter_base
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from packages.domain.chroma_key_config import normalize_color as _normalize_color_base
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logger = logging.getLogger(__name__)
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class ChromaKeyEngine:
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"""绿幕抠像引擎.
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薄包装层，实际逻辑委托给 packages.domain.chroma_key_config。
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"""
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def __init__(self, config: ChromaKeyConfig):
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self.config = config
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@staticmethod
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def _normalize_color(color_str: str) -> str:
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"""将颜色字符串转为 FFmpeg colorkey 接受的格式."""
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return _normalize_color_base(color_str)
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def build_filter(self, input_label: str, output_label: str) -> str:
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"""构建 colorkey 滤镜字符串."""
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return _build_colorkey_filter_base(self.config, input_label, output_label)
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def build_filter_chromakey(self, input_label: str, output_label: str) -> str:
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"""使用 chromakey 滤镜（更高级的版本，支持更多参数）."""
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return _build_chromakey_filter_base(self.config, input_label, output_label)
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