init

.gitignore

@@ -0,0 +1,219 @@
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[codz]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py.cover
+.hypothesis/
+.pytest_cache/
+cover/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+.pybuilder/
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+#   For a library or package, you might want to ignore these files since the code is
+#   intended to run in multiple environments; otherwise, check them in:
+# .python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# UV
+#   Similar to Pipfile.lock, it is generally recommended to include uv.lock in version control.
+#   This is especially recommended for binary packages to ensure reproducibility, and is more
+#   commonly ignored for libraries.
+#uv.lock
+
+# poetry
+#   Similar to Pipfile.lock, it is generally recommended to include poetry.lock in version control.
+#   This is especially recommended for binary packages to ensure reproducibility, and is more
+#   commonly ignored for libraries.
+#   https://python-poetry.org/docs/basic-usage/#commit-your-poetrylock-file-to-version-control
+#poetry.lock
+#poetry.toml
+
+# pdm
+#   Similar to Pipfile.lock, it is generally recommended to include pdm.lock in version control.
+#   pdm recommends including project-wide configuration in pdm.toml, but excluding .pdm-python.
+#   https://pdm-project.org/en/latest/usage/project/#working-with-version-control
+#pdm.lock
+#pdm.toml
+.pdm-python
+.pdm-build/
+
+# pixi
+#   Similar to Pipfile.lock, it is generally recommended to include pixi.lock in version control.
+#pixi.lock
+#   Pixi creates a virtual environment in the .pixi directory, just like venv module creates one
+#   in the .venv directory. It is recommended not to include this directory in version control.
+.pixi
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow and github.com/pdm-project/pdm
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# Redis
+*.rdb
+*.aof
+*.pid
+
+# RabbitMQ
+mnesia/
+rabbitmq/
+rabbitmq-data/
+
+# ActiveMQ
+activemq-data/
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.envrc
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# pytype static type analyzer
+.pytype/
+
+# Cython debug symbols
+cython_debug/
+
+# PyCharm
+#  JetBrains specific template is maintained in a separate JetBrains.gitignore that can
+#  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
+#  and can be added to the global gitignore or merged into this file.  For a more nuclear
+#  option (not recommended) you can uncomment the following to ignore the entire idea folder.
+#.idea/
+
+# Abstra
+# Abstra is an AI-powered process automation framework.
+# Ignore directories containing user credentials, local state, and settings.
+# Learn more at https://abstra.io/docs
+.abstra/
+
+# Visual Studio Code
+#  Visual Studio Code specific template is maintained in a separate VisualStudioCode.gitignore
+#  that can be found at https://github.com/github/gitignore/blob/main/Global/VisualStudioCode.gitignore
+#  and can be added to the global gitignore or merged into this file. However, if you prefer,
+#  you could uncomment the following to ignore the entire vscode folder
+# .vscode/
+
+# Ruff stuff:
+.ruff_cache/
+
+# PyPI configuration file
+.pypirc
+
+# Marimo
+marimo/_static/
+marimo/_lsp/
+__marimo__/
+
+# Streamlit
+.streamlit/secrets.toml
+
+videos/
+*.json

main.py

@@ -0,0 +1,146 @@
+import cv2
+from numpy import extract
+import pytesseract
+import logging
+import re
+import os
+import json
+
+
+CROP = (
+    10,  # x
+    10,  # y
+    32,  # h
+    120,  # w
+)
+
+RX = r"\d+"
+
+RESULTS_DIR = "results.json"
+VIDEOS_DIR = "videos"
+
+
+def get_log_level(level):
+    level = level.strip().upper()
+    if level.isdigit():
+        return int(level)
+    if lvl := logging.getLevelNamesMapping().get(level):
+        return lvl
+    raise Exception("invalid log level")
+
+
+def setup_logger(level):
+    logging.basicConfig(
+        level=level,
+        format="%(asctime)s [%(levelname).3s] <%(filename)s:%(funcName)s> %(message)s",
+        datefmt="%Y-%m-%d %H:%M:%S",
+    )
+
+
+def extract_count_at_frame(cap, idx):
+    logging.debug(f"getting info at frame idx={idx}")
+
+    cap.set(cv2.CAP_PROP_POS_FRAMES, idx)
+
+    ret, frame = cap.read()
+    if not ret:
+        raise Exception(f"failed to select frame idx={idx}")
+
+    fh, fw, _ = frame.shape
+
+    (x, y, h, w) = CROP
+    cropped = frame[x:h, fw - w : fw - y]
+
+    gray = cv2.cvtColor(cropped, cv2.COLOR_RGB2GRAY)
+
+    text = pytesseract.image_to_string(gray, config="--psm 6")  # "psm 6" = assume a block of text
+    matches = re.findall(RX, text)
+    if not matches:
+        return -1
+    return int(matches[-1])
+
+
+def get_pivot(start, end):
+    return int((end - start) / 2) + start
+
+
+def extract_timestamps(video_path):
+    cap = cv2.VideoCapture(video_path)
+    if not cap.isOpened():
+        raise Exception("failed to open file")
+
+    fps = cap.get(cv2.CAP_PROP_FPS)
+    total_frames = int(cap.get(cv2.CAP_PROP_FRAME_COUNT)) - int(fps)
+
+    c_start = extract_count_at_frame(cap, 0)
+    c_end = extract_count_at_frame(cap, total_frames)
+    if c_end <= c_start:
+        logging.info(f"no additional deaths in this video start={c_start} end={c_end}")
+        return []
+
+    timeframes = []
+
+    start = 0
+    end = total_frames
+    last_count = c_start
+    while True:
+        pivot = get_pivot(start, end)
+        count = extract_count_at_frame(cap, pivot)
+        if count < c_start or count > c_end:
+            logging.warning(f"faulty value found count={count} c_start={c_start} c_end={c_end} frame={pivot}")
+            start += 1
+            continue
+        logging.debug(f"s={start} e={end} p={pivot} c={count}")
+        if end - start < fps:
+            logging.debug(f"found window s={start} e={end} p={pivot} c={count}")
+            timeframes.append(start / fps)
+            last_count += 1
+            if len(timeframes) == c_end - c_start:
+                break
+            start = end + fps
+            end = total_frames
+        elif count <= last_count:
+            start = pivot
+        else:
+            end = pivot
+
+    cap.release()
+
+    return timeframes
+
+
+def format_timestamp(secs):
+    mins = int(secs / 60)
+    secs = int(secs % 60)
+    return f"{mins:0<2}:{secs:0<2}"
+
+
+def load_results():
+    if not os.path.exists(RESULTS_DIR):
+        return {}
+    with open(RESULTS_DIR, "r", encoding="utf-8") as f:
+        return json.load(f)
+
+
+def store_results(results):
+    with open(RESULTS_DIR, "w", encoding="utf-8") as f:
+        json.dump(results, f, indent=2)
+
+
+def main():
+    setup_logger(get_log_level("info"))
+
+    results = load_results()
+
+    for f in os.listdir(VIDEOS_DIR):
+        if f in results:
+            logging.info(f"already analyzed, skipping file={f}")
+            continue
+        logging.info(f"extracting timestamps ... file={f}")
+        timestamps = extract_timestamps(os.path.join(VIDEOS_DIR, f))
+        results[f] = [format_timestamp(t) for t in timestamps]
+        store_results(results)
+
+
+if __name__ == "__main__":
+    main()

requirements.txt

@@ -0,0 +1,5 @@
+numpy==2.2.6
+opencv-python==4.12.0.88
+packaging==25.0
+pillow==11.3.0
+pytesseract==0.3.13