✨ make-video-thumbnails: call pyvideothumbnailer for every video file found

make-video-thumbnails

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+#!/usr/bin/env python3
+# call pyvideothumbnailer for every video file found
+#
+# calculates rows based on the duration of the video
+
+import math
+import os
+import subprocess
+
+from pymediainfo import MediaInfo
+
+
+VERBOSE = False
+
+def is_video_file(video_file_path, video_extensions):
+    return video_file_path.lower().endswith(tuple(video_extensions))
+
+def find_video_files(directory, video_extensions):
+    # Recursively walk through directory
+    for dirpath, dirs, files in os.walk(directory):
+        for filename in files:
+            filename_path = os.path.join(dirpath, filename)
+            if is_video_file(filename_path, video_extensions):
+                yield os.path.abspath(filename_path)
+
+
+def get_video_duration(video_file_path):
+    # Get media information
+    media_info = MediaInfo.parse(video_file_path)
+
+    # Iterate through tracks in the media file
+    for track in media_info.tracks:
+        # If the track type is video
+        if track.track_type == "Video":
+            # Get duration and return it
+            duration_str = track.duration
+            duration_sec = float(duration_str) / 1000  # Convert to seconds
+            return duration_sec
+
+    # Return None if no video track found
+    return None
+
+
+def call_thumbnailer(video_file, width, rows, *, skip_seconds=10):
+    # Call external thumbnailer program
+    subprocess.run(
+        [
+            "pyvideothumbnailer",
+            "--width",
+            str(width),
+            "--rows",
+            str(rows),
+            "--jpeg-quality",
+            str(90),
+            "--skip-seconds",
+            str(skip_seconds),
+            video_file,
+        ]
+    )
+
+
+def main():
+    VIDEO_FILE_EXT = [".mp4", ".mkv", ".avi", ".mov", ".wmv"]
+    video_files = find_video_files(".", VIDEO_FILE_EXT)
+
+    for video_file in video_files:
+        # Skip if .jpg file already exists
+        thumbnails_file = video_file + ".jpg"
+        if os.path.exists(thumbnails_file):
+            if VERBOSE:
+                print(f"Skipping: {video_file} (thumbnails already exist)")
+            continue
+
+        try:
+            duration = get_video_duration(video_file)
+            if duration is not None:
+                # Calculate rows
+                COLS = 4  # pyvideothumbnailer default
+                EVERY = 5 * 60  # seconds
+                rows = math.ceil(duration / EVERY / COLS)
+
+                skip_seconds = 10
+                if duration < 60:
+                    skip_seconds = 0
+
+                # Call the thumbnailer
+                WIDTH = 1600
+                call_thumbnailer(video_file, WIDTH, rows, skip_seconds=skip_seconds)
+        except (TypeError, UnicodeEncodeError, FileNotFoundError) as e:
+            print(f"Error for {video_file}: {e}")
+
+
+if __name__ == "__main__":
+    main()