Calculate SHA1 for videos from LivePhotos and normal videos

[timaschew]

First of all, thank you for the awesome tool. I didn't use it soo much, just bought it yesterday, but the custom keyboard is really nice!

I could create SHA1 for photos and normal videos.
But I don't know how to access the video from a LivePhoto

Here is the script for calc sha1 for images and normal videos:

Edit: I just found out, that data in case of videos is not the real video, it seems to be just a thumbnail because it's much smaller than a normal photo (HEIC).

import photos
import hashlib
import base64
import csv
import os
from objc_util import ObjCInstance, ObjCClass, nsurl

PHAssetResource = ObjCClass('PHAssetResource')
PHAssetResourceManager = ObjCClass('PHAssetResourceManager')

assets = photos.get_assets(media_type='image')
output_rows = []
assets.reverse()

for asset in assets:
    try:
        # Zugriff auf das native Asset
        objc_asset = ObjCInstance(asset)
        resources = PHAssetResource.assetResourcesForAsset_(objc_asset)

        # Hole Dateinamen vom ersten Resource-Objekt
        resource = resources.firstObject()
        filename = str(resource.originalFilename())
        print('filename', filename)
        # Bilddaten holen
        data = asset.get_image_data().getvalue()

        # SHA1 berechnen
        sha1 = hashlib.sha1(data).digest()
        b64 = base64.b64encode(sha1).decode('utf-8')

        output_rows.append((b64, filename))
        break
				
    except Exception as e:
        print(f"❌ Fehler bei Asset: {e}")

# Speichern als CSV
output_path = os.path.expanduser('~/Documents/photo_hashes.csv')
with open(output_path, 'w', newline='') as f:
    writer = csv.writer(f)
    writer.writerow(['base64_sha1', 'filename'])
    writer.writerows(output_rows)

print(f"✅ Fertig! Datei gespeichert unter: {output_path}")

[omz]

Since you already have the asset resources as ObjC objects, you're almost there!

Here's how you could get the video file for a live photo:

# ...
resources = PHAssetResource.assetResourcesForAsset_(objc_asset)
for r in resources:
    # PHAssetResourceTypePairedVideo = 9
    if r.type() == 9 and r.isLocallyAvailable():
        file_url = r.privateFileURL()
        video_path = str(file_url.path())
        print(f'Live photo video file: {video_path}')
        # ...

[timaschew]

Great, thank you!

My final code:

import photos
import hashlib
import base64
import csv
import os
from objc_util import ObjCInstance, ObjCClass, nsurl

PHAssetResource = ObjCClass('PHAssetResource')
PHAssetResourceManager = ObjCClass('PHAssetResourceManager')

assets = photos.get_assets(media_type='video') # or 'image'
output_rows = []
assets.reverse()

def format_size(bytes):
    for unit in ['B','KB','MB','GB']:
        if bytes < 1024.0:
            return f"{bytes:.1f} {unit}"
        bytes /= 1024.0
    return f"{bytes:.1f} TB"

index = 0
for asset in assets:
    try:
        # Zugriff auf das native Asset
        objc_asset = ObjCInstance(asset)
        resources = PHAssetResource.assetResourcesForAsset_(objc_asset)
        for r in resources:
            if not r.isLocallyAvailable():
                print(f'resource not available for asset {index}')
                continue
            file_path = str(r.privateFileURL().path())
            if os.path.exists(file_path):
                size_bytes = os.path.getsize(file_path)
                with open(file_path, 'rb') as f:
                    data = f.read()
                    sha1 = hashlib.sha1(data).digest()
                    b64 = base64.b64encode(sha1).decode('utf-8')
                    print(f"{r.originalFilename()} → {b64} ({format_size(size_bytes)})")
        index += 1
        if index > 10:
            break
    except Exception as e:
        print(e)