Refactoring: extract cutting engine inside a dedicated module.

src/tscut/models.py

@@ -0,0 +1,60 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+#
+# Copyright (C) 2026 Frédéric Tronel
+
+from dataclasses import dataclass
+from datetime import timedelta
+from pathlib import Path
+from enum import IntEnum, unique
+from typing import BinaryIO, IO
+
+from tscut.h264.avc import AVCDecoderConfiguration
+
+@unique
+class SupportedFormat(IntEnum):
+    TS = 1
+    MP4 = 2
+    MATROSKA = 3
+
+    def __str__(self):
+        match self:
+            case SupportedFormat.TS:
+                return 'mpegts'
+            case SupportedFormat.MP4:
+                return 'mov,mp4,m4a,3gp,3g2,mj2'
+            case SupportedFormat.MATROSKA:
+                return 'matroska,webm'
+            case _:
+                return 'Unsupported format'
+
+@dataclass
+class ProcessingOptions:
+    input_file: Path
+    output_file: Path
+    parts:  list[tuple[timedelta, timedelta]]
+    tools_paths: dict[str, str]
+    all_optional_tools: bool
+    framerate: int|None = None
+    threshold: int = 0
+    coarse: bool = False
+    subtitles_ocr: bool = True
+    verbose: bool = False
+    dump_memory: bool = False
+    keep_temporaries: bool = False
+
+@dataclass
+class PreparedMedia:
+    basename: str
+    movie: BinaryIO
+    duration: timedelta
+    framerate: float
+    streams: list
+    width: int
+    height: int
+    avc_config: AVCDecoderConfiguration
+
+@dataclass
+class CutResult:
+    filename: str
+    movie: IO[bytes]
+    check_positions: list[timedelta]