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question:import os import subprocess import numpy as np import uuid from moviepy.editor import VideoFileClip from scipy.io import wavfile # Define video file extensions and the output folder video_extensions = ['.mp4', '.mkv', '.wmv', '.avi'] output_folder = 'Output' def calculate_loudness(audio_data, rate): """Calculate loudness using ITU-R BS.1770-4 method.""" if audio_data.ndim == 2: audio_data = np.mean(audio_data, axis=1) # convert to mono by averaging channels # Normalization constants for the ITU-R BS.1770-4 method pre_filter = np.array([1.53512485958697, -2.69169618940638, 1.19839281085285]) pre_gain = 1.0 power = 10.0 # Pre-filter audio_data = np.convolve(audio_data, pre_filter) * pre_gain # Calculate power and then LUFS mean_square = np.mean(audio_data ** 2) mean_power = mean_square ** (0.5) loudness = (1 / rate) * np.sum(mean_power ** power) lufs = -0.691 + 10 * np.log10(loudness) return lufs def find_loudest_segments(audio_data, rate, num_segments, segment_duration, video_duration, starting_offset, ending_offset): """Find the segments with the highest loudness in the audio data.""" # Calculate the loudness of each segment in the audio file segment_loudness = [ calculate_loudness( audio_data[max(0, i * int(rate * segment_duration)) : min(len(audio_data), (i + 1) * int(rate * segment_duration))], rate) for i in range(0, int(video_duration / segment_duration)) ] # Combine segment start times with their corresponding loudness loudness_and_segments = [ (segment_loudness[i], i * segment_duration) for i in range(len(segment_loudness)) if i * segment_duration >= starting_offset and (i + 1) * segment_duration <= video_duration - ending_offset ] # Sort the loudness and segments based on loudness loudness_and_segments.sort(key=lambda x: x[0], reverse=True) # Return the top num_segments segments sorted by loudness return loudness_and_segments[:num_segments] def sort_segments(segments_with_loudness, preference): if preference == 1: return sorted(segments_with_loudness, key=lambda x: x[1]) elif preference == 2: return sorted(segments_with_loudness, key=lambda x: x[1], reverse=True) elif preference == 3: return sorted(segments_with_loudness, key=lambda x: x[0]) elif preference == 4: return sorted(segments_with_loudness, key=lambda x: x[0], reverse=True) def extract_segment(video_path, start_time, duration, output_path): """Use ffmpeg to extract a segment from a video with x264 encoding.""" command = [ "ffmpeg", "-y", # Overwrite output files without asking "-ss", str(start_time), # Start time "-i", video_path, # Input file "-t", str(duration), # Duration "-c:v", "libx264", # Use x264 video codec "-c:a", "aac", # AAC audio codec "-strict", "experimental", # Allow experimental codecs (if necessary for AAC) output_path # Output path ] try: subprocess.run(command, check=True, stderr=subprocess.PIPE) except subprocess.CalledProcessError as e: print(f"ffmpeg command failed: {e.stderr.decode()}") def process_video_file(video_path, starting_offset, ending_offset, segment_duration, preference): """Process a single video file to calculate maximum number of segments based on segment duration.""" unique_id = str(uuid.uuid4()) audio_filename = f'temp_audio_{unique_id}.wav' try: video_clip = VideoFileClip(video_path) video_duration = video_clip.duration # Allow the user to adjust the segment duration interactively user_choice = 'yes' while user_choice == 'yes': possible_segments = int((video_duration - starting_offset - ending_offset) // segment_duration) if possible_segments < 1: print("Segment duration is too long for the video duration minus offsets. Please try again.") segment_duration = float(input("Please enter a new segment duration (sec): ")) continue print(f"Maximum number of segments obtainable: {possible_segments}") user_choice = input("Would you like to adjust the segment duration? (yes/no): ").strip().lower() if user_choice == 'yes': segment_duration = float(input("Please enter the new segment duration (sec): ")) # Anticiper si les noms de fichiers doivent correspondre à l'ordre initial if preference in [1, 2]: initial_order_index = {start_time: i for i, (loudness, start_time) in enumerate(segments_with_loudness)} if not os.path.exists(output_folder): os.makedirs(output_folder) for segment in sorted_segments: loudness, start_time = segment segment_index = initial_order_index[start_time] if preference in [1, 2] else sorted_segments.index(segment) output_filename = f"{os.path.splitext(os.path.basename(video_path))[0]}_segment{segment_index+1}.mp4" output_path = os.path.join(output_folder, output_filename) extract_segment(video_path, start_time, segment_duration, output_path) print(f"Extracted segment to {output_path}") finally: if os.path.exists(audio_filename): os.unlink(audio_filename) # Clean up the temporary file # Main if __name__ == "__main__": starting_offset = float(input("Start offset (sec)? ")) ending_offset = float(input("End offset (sec)? ")) segment_duration = float(input("Duration of each segment (sec)? ")) print("Choose your sorting preference for the extracted files:") print("1 - In order of appearance in the video") print("2 - In reverse order of appearance") print("3 - By increasing loudness") print("4 - By decreasing loudness") preference = int(input("Enter the number of your preference: ")) # Validate the user's preference if preference not in [1, 2, 3, 4]: print("Invalid preference. Please enter a valid number.") exit(1) for root, dirs, files in os.walk('.'): for file in files: if any(file.lower().endswith(ext) for ext in video_extensions): video_path = os.path.join(root, file) print(f"Processing video {video_path}…") process_video_file(video_path, starting_offset, ending_offset, num_segments, segment_duration, preference) print("All videos have been processed.")
answer:I understand you want to provide a way for the script to automatically determine the maximum number of segments based on the user's input for segment duration, starting offset, and ending offset, rather than asking the user for the number of segments to extract. Let's rectify the script to allow that interaction: Firstly, remove `num_segments` from the `process_video_file` call in the main code block as the user will not provide this parameter anymore. The script adjusted to receive only the starting offset, ending offset, segment duration, and user's sorting preference is as follows: ```python # ... (Importations et fonctions restent inchangées) def process_video_file(video_path, starting_offset, ending_offset, segment_duration, preference): """Process a single video file to calculate maximum number of segments based on segment duration.""" unique_id = str(uuid.uuid4()) audio_filename = f'temp_audio_{unique_id}.wav' try: video_clip = VideoFileClip(video_path) video_duration = video_clip.duration # Calculate the maximum number of segments that can fit into the video duration max_segments = int((video_duration - starting_offset - ending_offset) // segment_duration) # If no segments can be obtained, inform the user and stop processing the video if max_segments < 1: print("Segment duration is too long for the given offsets and video duration.") return print(f"Maximum number of segments obtainable: {max_segments}") # Continue processing the video as previously... # ... (Le reste de la logique du script principal reste inchangé) # ... (Les autres fonctions restent inchangées) # Main if __name__ == "__main__": starting_offset = float(input("Start offset (sec)? ")) ending_offset = float(input("End offset (sec)? ")) print("Choose your sorting preference for the extracted files:") print("1 - In order of appearance in the video") print("2 - In reverse order of appearance") print("3 - By increasing loudness") print("4 - By decreasing loudness") preference = int(input("Enter the number of your preference: ")) # Validate the user's preference if preference not in [1, 2, 3, 4]: print("Invalid preference. Please enter a valid number.") exit(1) segment_duration = float(input("Duration of each segment (sec)? ")) for root, dirs, files in os.walk('.'): for file in files: if any(file.lower().endswith(ext) for ext in video_extensions): video_path = os.path.join(root, file) print(f"Processing video {video_path}…") process_video_file(video_path, starting_offset, ending_offset, segment_duration, preference) print("All videos have been processed.") ``` In this modified script, the variable `segment_duration` is set by the user and it calculates `max_segments` inside `process_video_file` to determine the maximum number of segments that can be extracted based on the video duration, starting offset, and ending offset. If the calculated number of possible segments is less than 1, the program will inform the user and cease processing the current video file. The variable `num_segments` has been removed from the `process_video_file` function call within the main block because now we determine the number of segments within this function itself. The user is not given the option to readjust segment duration within the `process_video_file` function as per your previous request, but such logic can be added similarly to the discussion in the previous responses if desired.
question:File "H:TestsV1 - encodage - nombre segments auto-déterminé.py", line 140, in <module> process_video_file(video_path, starting_offset, ending_offset, num_segments, segment_duration, preference) NameError: name 'num_segments' is not defined. Did you mean: 'sort_segments'?
answer:L'erreur `NameError: name 'num_segments' is not defined. Did you mean: 'sort_segments'?` se produit parce que le paramètre `num_segments` est toujours utilisé pour appeler la fonction `process_video_file` dans le bloc de code principal, alors qu'il n'est plus nécessaire et n'a pas été défini précédemment dans le script. Pour corriger cette erreur, supprimez la référence à `num_segments` lors de l'appel de la fonction `process_video_file`. Utilisez uniquement les paramètres nécessaires qui sont définis, à savoir `video_path`, `starting_offset`, `ending_offset`, `segment_duration` et `preference`. Voici comment le script devrait être modifié : ```python # ... (Les fonctions et importations précédentes restent inchangées) # Main if __name__ == "__main__": starting_offset = float(input("Start offset (sec)? ")) ending_offset = float(input("End offset (sec)? ")) print("Choose your sorting preference for the extracted files:") print("1 - In order of appearance in the video") print("2 - In reverse order of appearance") print("3 - By increasing loudness") print("4 - By decreasing loudness") preference = int(input("Enter the number of your preference: ")) # Validate the user's preference if preference not in [1, 2, 3, 4]: print("Invalid preference. Please enter a valid number.") exit(1) # Demandez une seule fois la durée de chaque segment. segment_duration = float(input("Duration of each segment (sec)? ")) for root, dirs, files in os.walk('.'): for file in files: if any(file.lower().endswith(ext) for ext in video_extensions): video_path = os.path.join(root, file) print(f"Processing video {video_path}…") # Call process_video_file without num_segments, since it's no longer used process_video_file(video_path, starting_offset, ending_offset, segment_duration, preference) print("All videos have been processed.") ``` Cette modification fait maintenant en sorte que le nombre de segments `num_segments` n'est plus attendu en tant que paramètre par la fonction `process_video_file`, et corrige l'erreur de `NameError`. Assurez-vous que toutes les références à `num_segments` sont également retirées de la fonction `process_video_file` elle-même, pour qu'il n'y ait pas de confusion.
question:Traceback (most recent call last): File "H:TestsV1 - encodage - nombre segments auto-déterminé.py", line 144, in <module> process_video_file(video_path, starting_offset, ending_offset, segment_duration, preference) File "H:TestsV1 - encodage - nombre segments auto-déterminé.py", line 102, in process_video_file initial_order_index = {start_time: i for i, (loudness, start_time) in enumerate(segments_with_loudness)} NameError: name 'segments_with_loudness' is not defined
answer:L'erreur `NameError: name 'segments_with_loudness' is not defined` suggère que la variable `segments_with_loudness` est utilisée avant d'être définie. Elle est utilisée pour construire le dictionnaire `initial_order_index` mais n'est définie nulle part auparavant dans la fonction `process_video_file`. Pour corriger cette erreur, veillez à définir `segments_with_loudness` avant son utilisation. Il faut appeler correctement la fonction `find_loudest_segments` avec tous les paramètres nécessaires et assigner le résultat à `segments_with_loudness`. Assurez-vous que cela est fait avant toute référence à `segments_with_loudness`. Voici comment cette partie du code devrait être corrigée : ```python def process_video_file(video_path, starting_offset, ending_offset, segment_duration, preference): # ... le reste de la fonction comme précédemment try: # ... (initialisation de `video_clip` et `video_duration`) # toggle for user interaction to change `segment_duration` if needed # ... la logique de l'interaction utilisateur pour `segment_duration` # Read the audio data from the video file video_clip.audio.write_audiofile(audio_filename) rate, audio_data = wavfile.read(audio_filename) # Calculate the loudness for segments and store in `segments_with_loudness` segments_with_loudness = find_loudest_segments( audio_data, rate, max_segments, segment_duration, video_duration, starting_offset, ending_offset ) # Sort the segments based on the user's preference sorted_segments = sort_segments(segments_with_loudness, preference) # Build `initial_order_index` if necessary if preference in [1, 2]: initial_order_index = {start_time: i for i, (loudness, start_time) in enumerate(segments_with_loudness)} # ... (le reste du code pour la création de l'Output folder et l'extraction des segments) finally: # Clean up the temporary audio file if os.path.exists(audio_filename): os.unlink(audio_filename) # ... le code principal comme précédemment ``` Assurez-vous que l'appel à `find_loudest_segments` est fait avec le bon nombre de segments maximum (`max_segments`), ce qui est calculé dans le processus interactif avec l'utilisateur, et que `segments_with_loudness` a été défini avant de construire le dictionnaire `initial_order_index`. Cela devrait résoudre le `NameError` et faire fonctionner correctement le script.
question:Peux-tu réécrire en entier la fonction process_video_file ?
answer:Bien sûr ! Voici la fonction `process_video_file` réécrite avec les ajustements nécessaires : ```python def process_video_file(video_path, starting_offset, ending_offset, preference): unique_id = str(uuid.uuid4()) audio_filename = f'temp_audio_{unique_id}.wav' try: # Load the video and calculate its duration video_clip = VideoFileClip(video_path) video_duration = video_clip.duration # User interaction for setting the segment duration user_choice = 'yes' while user_choice == 'yes': segment_duration = float(input("Please enter the segment duration (sec): ")) max_segments = int((video_duration - starting_offset - ending_offset) // segment_duration) if max_segments < 1: print("Segment duration is too long for the given offsets and video duration. Please try again.") else: print(f"Maximum number of segments obtainable: {max_segments}") user_choice = input("Would you like to adjust the segment duration? (yes/no): ").strip().lower() # Extract the audio to calculate loudness video_clip.audio.write_audiofile(audio_filename) rate, audio_data = wavfile.read(audio_filename) # Calculate the loudest segments loudness_and_segments = find_loudest_segments( audio_data, rate, max_segments, segment_duration, video_duration, starting_offset, ending_offset ) # Sort the segments based on the user's preference sorted_segments = sort_segments(loudness_and_segments, preference) # Prepare output folder if it doesn't exist if not os.path.exists(output_folder): os.makedirs(output_folder) # Generate initial order index if necessary if preference in [1, 2]: initial_order_index = {start_time: i for i, (loudness, start_time) in enumerate(loudness_and_segments)} # Extract each segment and save it to the output folder for segment in sorted_segments: loudness, start_time = segment segment_index = (initial_order_index[start_time] + 1 if preference in [1, 2] else sorted_segments.index(segment) + 1) output_filename = f"{os.path.splitext(os.path.basename(video_path))[0]}_segment{segment_index}.mp4" extract_segment(video_path, start_time, segment_duration, os.path.join(output_folder, output_filename)) print(f"Extracted segment to {output_filename}") finally: # Clean up the generated temporary audio file if os.path.exists(audio_filename): os.unlink(audio_filename) ``` Le processus interactif pour déterminer la `segment_duration` a été incorporé directement dans la fonction `process_video_file`. Après que l'utilisateur ait finalement choisi de ne pas réajuster la `segment_duration`, le script extrait l'audio, calcule les segments les plus bruyants, les trie en fonction des préférences de l'utilisateur, et extrait ensuite les segments selon l'ordre déterminé. Lors de l'utilisation de cette fonction révisée dans le code principal, n'oubliez pas de supprimer les paramètres qui ne sont plus utilisés lors de l'appel de `process_video_file`, tels que `segment_duration` et `num_segments`.