diff --git a/src/tscut/cutting.py b/src/tscut/cutting.py
index d6166c9..677dd28 100644
--- a/src/tscut/cutting.py
+++ b/src/tscut/cutting.py
@@ -3,40 +3,29 @@
 # Copyright (C) 2026 Frédéric Tronel
 
 import logging
-from typing import IO, Any
 from datetime import timedelta
-from shutil import copyfile, move
+from shutil import copyfile
+from typing import IO, Any
 
 import hexdump
 
 from tscut.exceptions import InvalidMediaError
-from tscut.models import PreparedMedia, ProcessingOptions, CutResult
+from tscut.h264.avc import get_avc_config_from_h264
+from tscut.matroska.codec import dump_codec_private_data
+from tscut.models import CutResult, PreparedMedia, ProcessingOptions
+from tscut.tools.ffmpeg import extract_all_streams
 from tscut.tools.ffprobe import (
-    find_subtitles_tracks,
-    get_format,
-    get_frame_rate,
-    get_movie_duration,
     get_nearest_iframe,
-    get_streams,
 )
-from tscut.tools.ffmpeg import extract_all_streams, ffmpeg_convert
-from tscut.h264.avc import get_avc_config_from_h264, parse_codec_private
 from tscut.tools.mkvtoolnix import (
     change_codec_private_data,
     extract_mkv_part,
     extract_track_from_mkv,
-    get_codec_private_data_from_mkv,
     merge_mkvs,
     remove_video_tracks_from_mkv,
-    remux_srt_subtitles,
 )
 from tscut.tools.timeframe import get_ts_frame
-from tscut.tscut import (
-    concatenate_h264_parts,
-    concatenate_h264_ts_parts
-)
-from tscut.matroska.codec import dump_codec_private_data
-
+from tscut.tscut import concatenate_h264_parts, concatenate_h264_ts_parts
 
 logger = logging.getLogger(__name__)
 
@@ -206,16 +195,17 @@ def cut_recording(media: PreparedMedia, options: ProcessingOptions,
 
         if (not options.coarse) and (nb_tail_frames > options.threshold):
             # We extract all frames between the I-frame (including it) upto the end.
-            h264_tail, h264_tail_ts, mkv_tail = extract_all_streams(ffmpeg_path=options.tools_paths['ffmpeg'],
-                                                              ffprobe_path=options.tools_paths['ffprobe'],
-                                                              input_file=media.movie, begin=tail_iframe_ts,
-                                                              end=ts2, nb_frames=nb_tail_frames,
-                                                              framerate=media.framerate,
-                                                              files_prefix=f'part-{partnum:d}-tail',
-                                                              streams=media.streams,
-                                                              width=media.width, height=media.height,
-                                                              temporaries=temporaries,
-                                                              dump_mem_fd=options.dump_memory)
+            h264_tail, h264_tail_ts, mkv_tail = extract_all_streams(
+                                ffmpeg_path=options.tools_paths['ffmpeg'],
+                                ffprobe_path=options.tools_paths['ffprobe'],
+                                input_file=media.movie, begin=tail_iframe_ts,
+                                end=ts2, nb_frames=nb_tail_frames,
+                                framerate=media.framerate,
+                                files_prefix=f'part-{partnum:d}-tail',
+                                streams=media.streams,
+                                width=media.width, height=media.height,
+                                temporaries=temporaries,
+                                dump_mem_fd=options.dump_memory)
 
             if mkv_tail is not None:
                 subparts.append(mkv_tail)
diff --git a/src/tscut/models.py b/src/tscut/models.py
index 9173593..e254180 100644
--- a/src/tscut/models.py
+++ b/src/tscut/models.py
@@ -4,12 +4,13 @@
 
 from dataclasses import dataclass
 from datetime import timedelta
-from pathlib import Path
 from enum import IntEnum, unique
-from typing import BinaryIO, IO
+from pathlib import Path
+from typing import IO, BinaryIO
 
 from tscut.h264.avc import AVCDecoderConfiguration
 
+
 @unique
 class SupportedFormat(IntEnum):
     TS = 1
diff --git a/src/tscut/pipeline.py b/src/tscut/pipeline.py
index 50634db..64ab874 100644
--- a/src/tscut/pipeline.py
+++ b/src/tscut/pipeline.py
@@ -12,45 +12,23 @@ from typing import IO, Any, BinaryIO
 
 import hexdump
 
-from tscut.models import ProcessingOptions, PreparedMedia, SupportedFormat
 from tscut.cutting import cut_recording
-from tscut.exceptions import InvalidMediaError
-from tscut.h264.avc import (
-    get_avc_config_from_h264,
-    parse_codec_private
-)
+from tscut.h264.avc import parse_codec_private
 from tscut.matroska.codec import dump_codec_private_data
-from tscut.subtitles.ocr import (
-    do_ocr,
-    extract_srt,
-    get_tesseract_supported_lang
-)
-from tscut.tools.ffmpeg import (
-    extract_all_streams,
-    ffmpeg_convert
-)
+from tscut.models import PreparedMedia, ProcessingOptions, SupportedFormat
+from tscut.subtitles.ocr import do_ocr, extract_srt, get_tesseract_supported_lang
+from tscut.tools.ffmpeg import ffmpeg_convert
 from tscut.tools.ffprobe import (
     find_subtitles_tracks,
     get_format,
     get_frame_rate,
     get_movie_duration,
-    get_nearest_iframe,
     get_streams,
 )
 from tscut.tools.mkvtoolnix import (
-    change_codec_private_data,
-    extract_mkv_part,
-    extract_track_from_mkv,
     get_codec_private_data_from_mkv,
-    merge_mkvs,
-    remove_video_tracks_from_mkv,
     remux_srt_subtitles,
 )
-from tscut.tools.timeframe import get_ts_frame
-from tscut.tscut import (
-    concatenate_h264_parts,
-    concatenate_h264_ts_parts
-)
 
 logger = logging.getLogger(__name__)