utils.py

from nltk import sent_tokenize
from transcribe import format_time

def frame_to_timecode(frame_num, total_frames, duration):
    total_seconds = (frame_num / total_frames) * duration
    hours = int(total_seconds // 3600)
    minutes = int((total_seconds % 3600) // 60)
    seconds = int(total_seconds % 60)
    milliseconds = int((total_seconds - int(total_seconds)) * 1000)
    return f"{hours:02d}:{minutes:02d}:{seconds:02d}.{milliseconds:03d}"

def seconds_to_timecode(seconds):
    hours = int(seconds // 3600)
    minutes = int((seconds % 3600) // 60)
    seconds = int(seconds % 60)
    return f"{hours:02d}:{minutes:02d}:{seconds:02d}"

def timecode_to_seconds(timecode):
    h, m, s = map(int, timecode.split(':'))
    return h * 3600 + m * 60 + s

def add_timecode_to_image(image, timecode):
    from PIL import Image, ImageDraw, ImageFont
    import numpy as np

    img_pil = Image.fromarray(image)
    draw = ImageDraw.Draw(img_pil)
    font = ImageFont.truetype("arial.ttf", 15)
    draw.text((10, 10), timecode, (255, 0, 0), font=font)
    return np.array(img_pil)

def flexible_timecode_to_seconds(timecode):
    try:
        if ',' in timecode:
            h, m, s = timecode.replace(',', '.').split(':')
        else:
            h, m, s = timecode.split(':')
        return int(float(h)) * 3600 + int(float(m)) * 60 + float(s)
    except ValueError:
        print(f"Invalid timecode format: {timecode}")
        return 0

def add_timecode_to_image_body(image, timecode):
    from PIL import Image, ImageDraw, ImageFont
    import numpy as np

    img_pil = Image.fromarray(image)
    draw = ImageDraw.Draw(img_pil)
    font = ImageFont.truetype("arial.ttf", 100)
    draw.text((10, 10), timecode, (255, 0, 0), font=font)
    return np.array(img_pil)

def parse_transcription(transcription_output, video_duration):
    # Remove the "Text Transcription:" prefix if it exists
    if transcription_output.startswith("Text Transcription:"):
        transcription_output = transcription_output.split("Text Transcription:", 1)[1].strip()

    sentences = sent_tokenize(transcription_output)
    total_chars = sum(len(s) for s in sentences)
    sentences_with_timecodes = []
    current_time = 0

    for sentence in sentences:
        sentence_duration = (len(sentence) / total_chars) * video_duration
        end_time = current_time + sentence_duration
        timecode = format_time(current_time)
        sentences_with_timecodes.append((timecode, sentence))
        current_time = end_time

    return sentences_with_timecodes


def get_sentences_before_anomalies(sentences_with_timecodes, anomaly_timecodes, time_threshold=5):
    anomaly_sentences = {}
    for anomaly_timecode in anomaly_timecodes:
        try:
            anomaly_time = flexible_timecode_to_seconds(anomaly_timecode)
            relevant_sentences = [
                (timecode, sentence) for timecode, sentence in sentences_with_timecodes
                if 0 <= anomaly_time - flexible_timecode_to_seconds(timecode) <= time_threshold
            ]
            if relevant_sentences:
                # Use the sentences as the key to avoid duplicates
                key = tuple((timecode, sentence) for timecode, sentence in relevant_sentences)
                if key not in anomaly_sentences:
                    anomaly_sentences[key] = anomaly_timecode
        except Exception as e:
            print(f"Error processing anomaly timecode {anomaly_timecode}: {str(e)}")
            continue
    return [(timecode, list(sentences)) for sentences, timecode in anomaly_sentences.items()]

def timecode_to_seconds(timecode):
    h, m, s = map(float, timecode.split(':'))
    return h * 3600 + m * 60 + s