add new video edit scripts for combine video and spliting video

helper_files/combine_videos.py

@@ -1,129 +0,0 @@
-#!/usr/bin/env python3
-"""Combine multiple video files into one file using FFmpeg.
-
-Example:
-    python helper_files/combine_videos.py output.mp4 video1.mp4 video2.mp4 video3.mp4
-    python helper_files/combine_videos.py --output merged.mp4 --inputs video1.mp4 video2.mp4
-"""
-
-import argparse
-import os
-import subprocess
-import sys
-from pathlib import Path
-
-
-def build_concat_list(input_files, list_path):
-    with open(list_path, "w", encoding="utf-8") as f:
-        for path in input_files:
-            f.write(f"file '{os.path.abspath(path)}'\n")
-
-
-def run_ffmpeg(cmd):
-    print("Running:", " ".join(cmd))
-    result = subprocess.run(cmd, capture_output=True, text=True)
-    if result.returncode != 0:
-        print(result.stdout)
-        print(result.stderr)
-        raise RuntimeError(f"FFmpeg failed with exit code {result.returncode}")
-    print("✅ Finished successfully.")
-
-
-def concat_videos_copy(input_files, output_path):
-    list_path = Path(output_path).with_suffix(".concat.txt")
-    build_concat_list(input_files, list_path)
-
-    cmd = [
-        "ffmpeg",
-        "-y",
-        "-f", "concat",
-        "-safe", "0",
-        "-i", str(list_path),
-        "-c", "copy",
-        str(output_path),
-    ]
-    run_ffmpeg(cmd)
-    list_path.unlink(missing_ok=True)
-
-
-def concat_videos_reencode(input_files, output_path):
-    inputs = []
-    filter_parts = []
-    audio_parts = []
-
-    for i, video_path in enumerate(input_files):
-        inputs.extend(["-i", str(video_path)])
-        filter_parts.append(f"[{i}:v]scale=trunc(iw/2)*2:trunc(ih/2)*2,setpts=PTS-STARTPTS[v{i}]")
-        audio_parts.append(f"[{i}:a]aresample=async=1[a{i}]")
-
-    concat_filter = ",".join(filter_parts + audio_parts)
-    map_parts = []
-    for i in range(len(input_files)):
-        map_parts.append(f"[v{i}]")
-        map_parts.append(f"[a{i}]")
-
-    # Join the video and audio streams in order and concatenate them.
-    # This works well when the clips are similar enough in format.
-    filter_complex = f"{','.join(filter_parts)};{';'.join(audio_parts)};"
-    filter_complex += "".join(f"[{i}:v][{i}:a]" for i in range(len(input_files)))
-    filter_complex += f"concat=n={len(input_files)}:v=1:a=1[outv][outa]"
-
-    cmd = [
-        "ffmpeg",
-        "-y",
-        *inputs,
-        "-filter_complex",
-        filter_complex,
-        "-map",
-        "[outv]",
-        "-map",
-        "[outa]",
-        "-c:v",
-        "libx264",
-        "-c:a",
-        "aac",
-        "-movflags",
-        "+faststart",
-        str(output_path),
-    ]
-    run_ffmpeg(cmd)
-
-
-def merge_videos(input_files, output_path):
-    input_files = [str(Path(p).expanduser().resolve()) for p in input_files]
-    output_path = str(Path(output_path).expanduser().resolve())
-
-    if len(input_files) < 2:
-        raise ValueError("You need at least 2 video files to merge.")
-
-    for path in input_files:
-        if not os.path.exists(path):
-            raise FileNotFoundError(f"File not found: {path}")
-
-    output_dir = Path(output_path).parent
-    output_dir.mkdir(parents=True, exist_ok=True)
-
-    try:
-        concat_videos_copy(input_files, output_path)
-    except Exception as exc:
-        print(f"Fast copy method failed: {exc}")
-        print("Retrying with re-encode fallback...")
-        concat_videos_reencode(input_files, output_path)
-
-
-def main():
-    parser = argparse.ArgumentParser(description="Join two or more video files together with FFmpeg.")
-    parser.add_argument("output_file", help="Path to the merged output video")
-    parser.add_argument("input_files", nargs="+", help="Two or more videos to concatenate")
-    args = parser.parse_args()
-
-    try:
-        merge_videos(args.input_files, args.output_file)
-        print(f"Merged video saved to: {args.output_file}")
-    except Exception as exc:
-        print(f"Error: {exc}")
-        sys.exit(1)
-
-
-if __name__ == "__main__":
-    main()